AS/NZS 1100.501 :2002 Australian/New Zealand Standard ™ Technical drawing Part 501: Structural engineering drawing Originated as AS 1100.501-1985. Jointly revised and designated as AS/NZS 1100.501 :2002. COPYRIGHT © Standards Australia/Standards New Zealand All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Jointly published by Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020 ISBN O 7337 4008 1 AS/NZS 1100.501:2002 2 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee ME-072, Technical Drawing, to supersede AS 1100.501-1985, Technical drawing, Part 50 I: Structural engineering drawing. The objective of the Standard is to provide engineers, architects, builders, drafting officers and others in the construction industry with a common method for the representation of structures and their components to enable the preparation and unambiguous interpretation of structural drawings. This Standard is one of a series dealing with technical drawings. The other Standards in the series are the following: Part IO I: General principles Part 20 I: Mechanical engineering drawing Part 301: Architectural drawing Part 40 I: Engineering survey and engineering survey design drawing Reference to Part IO I is required for the source, definition and basic requirements of some of the contents of this Standard. In the preparation of this Standard, the committee took account of the recommendations of the International Organization for Standardization. In addition to the relevant international Standards listed in AS 1100.101, this Standard is in agreement with the following international Standards: ISO 3766 Construction drawings -Simplified representation of concrete reinforcement 4066 Construction drawings-Bar scheduling This Standard has three sections, as follows: (a) Section I deals with general information on the Standard and on the general requirements. (b) Section 2 deals with matters applicable to all structural drawings and contains conventions, symbols and abbreviations for the general user. (c) Section 3 contains conventions for use in particular applications or with specific materials. It is acknowledged that the use of computer-aided drafting (CAD) now plays an important part in producing technical drawings. In line with the practice of international Standards committees dealing with areas related to technical drawings, the requirements and principles of this Standard apply equally to users of CAD systems. 3 AS/NZS 1100.501:2002 CONTENTS Page SECTION I SCOPE AND GENERAL I.I SCOPE ......................................................................................................................... 4 1.2 APPLICATION ........................................................................................................... 4 1.3 REFERENCED DOCUMENTS................................................................................... 5 1.4 DEFINITIONS............................................................................................................. 5 1.5 CLASSIFICATION OF DRAWINGS ......................................................................... 6 1.6 LEGENDS ................................................................................................................... 6 SECTION 2 GENERAL APPLICATIONS 2.1 DIMENSIONING ........................................................................................................ 7 2.2 LINES.......................................................................................................................... 7 2.3 SYMBOLS .................................................................................................................. 7 2.4 ABBREVIATIONS ..................................................................................................... 7 2.5 IDENTIFICATION OF STRUCTURAL ELEMENTS ................................................ 7 2.6 INFORMATION TO BE SHOWN ON DRAWINGS ................................................ 12 2.7 DRAWING SCALES................................................................................................. 12 2.8 CONVENTIONS FOR CROSS-REFERENCING ..................................................... 12 2.9 ARRANGEMENT OF DRAWINGS IN A SET ........................................................ 16 SECTION 3 PARTICULAR APPLICATIONS 3.I GENERAL................................................................................................................. 17 3.2 REINFORCED AND PRESTRESSED CONCRETE ................................................ 17 3.3 STRUCTURAL STEEL ............................................................................................. 26 3.4 TIMBER .................................................................................................................... 29 3.5 MASONRY ............................................................................................................... 34 AS/NZS 1100.501:2002 4 STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Technical drawing Part 501: Structural engineering drawing S ECTION I S COPE AND GENERAL 1.1 SCOPE This Standard sets out requirements and recommendation for structural engineering drawing practice and is complementary to AS 1100.101. This Standard deals with the presentation of information. The types of structures intended to be dealt with by this Standard are generally those covered by structural design and construction Standards and codes, particularly the following: AS 1720 Timber Structures Code 2327 Composite structures 2327.1 Part I: Simply supported beams 3600 Concrete structures 3700 Masonry structures 3990 Mechanical equipment-Steelwork 4100 Steel structures AS/NZS 1148 Timber-Nomenclature-Australian, New Zealand and imported species 1664 Aluminium structures 4600 Steel structures NZS 3101 Concrete Structures Standard 3404 Steel Structures Standard 3603 Timber Structures Standard Code of practice for the design of masonry structures 4230 AUSTROADS Bridge Design Code NOTE: For cold-formed steel structures, stainless steel structures and aluminium structures, the pictorial representation is similar to general structural steelwork drafting. 1.2 APPLICATION The principles given in this Standard are intended for adoption by engineers, architects, drafting persons and builders in both Government authorities and private enterprise. The Standard is intended as a basis for common practice and consistency of application, upon which technical organizations can base their own detailed rules or manuals for the preparation and presentation of drafting work. It is also intended that the Standard be sufficiently complete for most applications, and that drafting offices or persons would only need further guidelines when drawing specialized structures or when working outside the scope of the Standard. COPYRIGHT 5 AS/NZS 1100.501:2002 The application of this Standard may require reference to AS 1100.101, AS 1100.301 and AS 1100.401. 1.3 REFERENCED DOCUMENTS The following Standards are referred to in this Standard: AS 1100 Technical drawing 1100.101 Part 101: General principles 1100.301 Part 301: Architectural drawing 1100.401 Part 401: Engineering survey and engineering survey design drawing 1101 Graphical symbols for general engineering 1101.3 Part 3: Welding and non-destructive examination 1111 ISO metric hexagon commercial bolts and screws 1163 Structural steel hollow sections 1310 Steel wire for tendons in prestressed concrete 1311 Steel tendons for prestressed concrete-7-wire stress-relieved steel strand for tendons in prestressed concrete 1397 Steel sheet and strip-Hot-dipped zinc-coated or aluminium/zinc-coated 1720 Timber structures 2812 Welding, brazing and cutting of metals-Glossary of terms 3600 Concrete structures 3700 Masonry structures 3990 Mechanical equipment-Steelwork 4100 Steel structures AS/NZS 1148 Timber-Nomenclature-Australian, New Zealand and imported species 1252 High strength steel bolts with associated nuts and washers for structural engineering 1554 Structural steel welding (various parts) 3678 Structural steel-Hot-rolled plates, floorplates and slabs 3679 Structural steel 3679.1 Part 1: Hot-rolled bars and sections 3679.2 Part 2: Welded I sections 4671 Steel reinforcing materials NZS 3101 Concrete structures standard 3404 Steel structures standard 3603 Timber structures standard 1.4 DEFINITIONS For the purpose of this Standard, the definitions given in AS 1100.101 and AS 1100.301 and those below apply. 1.4.1 Bar mark An identifier given to a reinforcement bar. COPYRIGHT AS/NZS 1100,501:2002 6 1.4.2 Bundle mark An identifier given to a bundle of reinforcement bars. 1.4.3 Elevation The projection on a vertical plane of any object, such as a building or component, viewed at right angles to the plane of projection. 1.4.4 May Indicates the existence of an option. 1.4.5 Section on grid line A vertical section drawn without showing inclined members cutting the line of the section. 1.4.6 Shall Indicates that a statement is mandatory. 1.4.7 Should Indicates a recommendation. 1.4.8 Specification A precise description of materials and workmanship of a project or parts thereof which are not shown on drawings or in schedules. 1.5 CLASSIFICATION OF DRAWINGS The following types of drawing can be identified for the purposes of document classification: (a) Design layout drawing A drawing depicting the size, shape and relationship, as designed, of major structural elements. (b) Design detail drawing A drawing depicting all the information required for the construction, in accordance with the design, of any given part of a structure or structural element. (c) Shop detail drawing A drawing depicting all necessary information for the fabrication of structural elements, and intended for use in a workshop. (d) General information drawing A drawing containing information required for the understanding of related drawings, or for the performance of the work depicted on them. (e) As-built drawing A drawing used to record the details of a construction following its completion. NOTE: Previously referred to as 'work-as-executed drawing'. (f) Marking drawing An arrangement drawing for structural prefabricated elements showing their designations and relationships. (g) Handling and erection procedure drawing A drawing indicating erection requirements such as sequence of operations, temporary structural members and sling positions. 1.6 LEGENDS Legends shall be provided in respect of any symbols used for non-conventional representation of items, such as the following: (a) Joints, e.g. construction joint, expansion joint, contraction joint. (b) Set-out lines. COPYRIGHT 7 SECTION 2 AS/NZS 1100.501:2002 GENERAL APPLICATIONS 2,1 DIMENSIONING Units and methods used m dimensioning of drawings shall be in accordance with AS 1100.101. If dimensions are shown on other drawings (such as architectural drawings), dimensions showing relationships of members (including primary and building dimensions) may be omitted on structural drawings. NOTE: Examples of primary and building dimensions are building widths, heights and lengths, and grid spacings. 2.2 LINES 2.2.1 Type of line A type of line appropriate for each application shall be selected from, and used in accordance with, Table 2.1. For other applications see AS 1100.101. 2.2.2 Line thickness Line thicknesses shall be selected in accordance with AS 1100.10I. NOTE: A line of thickness less than 0.18 mm is difficult to reproduce in some situations. 2.3 SYMBOLS The symbols given in AS 1100.101, AS 1100.301 and AS 1100.40 I shall be used to indicate relevant features on drawings prepared for general or communication purposes, particularly where drawing to scale is impracticable. For symbols used in structural engineering, see Section 3. NOTE: Symbol size and line thickness will depend on drawing size and scale. Symbols given have therefore not been dimensioned. 2.4 ABBREVIATIONS Abbreviations for use in general applications shall be in accordance with AS 1100.101, AS 1100.301 and AS 1100.401. For abbreviations for use on particular application drawings, see Tables 2.2(A) and 2.2(B), 3.2 and 3.4, and Clause 3.2.6. 2.5 IDENTIFICATION OF STRUCTURAL ELEMENTS 2.5.1 General Each structural element should be labelled by a discrete reference using a suitable combination of letters or numbers. This reference may be by either consecutive numbering or a grid system, or both. 2.5.2 Consecutive numbering In a consecutive numbering system, the reference should comprise a prefix, stem and suffix, as follows: (a) Prefix The location or floor level of the structural element. Floor levels may be designated either by sequential levels or traditional storeys (see Table 2.2(A)). COPYRIGHT AS/NZS 1100.501:2002 8 (b) Stem (c) Suffix The individual number of the structural element. The type of structural element (see Table 2.2(B)). Examples: (i) Fourth floor, beam No. 21............................................................................. 4 B 21. (ii) Level 10, slab No. 4 ..................................................................................... 10 S 4. 2.5.3 Grid system (see also AS 1100.301) A grid reference system consists of one set of gridlines in one direction with a second set of gridlines in another direction. Any grid system shall be consistent throughout a project. Grid systems are generally used with regularly shaped structures but grid lines do not necessarily have to be at right angles to each other. Grid directions should be selected to allow for expansion to accommodate any anticipated future extension. The project grid may be adopted with a completely arbitrary orientation, bearing no relation to any recognized map grid or True North. The gridlines running down the sheet should be marked alphabetically (A, B, C ... ) and the gridlines across the sheet should be marked numerically (1, 2, 3 ...), as shown in Figure 2.1. A B C -+ -+ -1--+ --+ --+ PLAN Scale UOO FIGURE 2.1 EXAMPLE OF GRID NUMBERING SYSTEM (SEE CLAUSE 2.5.3) COPYRIGHT 9 ASINZS 1100.501:2002 TABLE 2.1 LINES AND APPLICATIONS (SEE CLAUSE 2.2) I 2 3 4 Designating letter Type of line Example of line Application A Continuous -thick ' ' Diagrammatic representation of structural element centreMline on layout drawings, e.g. beams Visible lines and changeMinwlevel lines structural bolts, e.g. in timber Reinforcement where 'thin' or 'medium' concrete outlines are used M Continuous medium ' ' Visible outlines, optional, where considerable detail has to be shown Intersecting beam outlines in elevations only Reinforcing bars and mesh where fully detailed in view shown or concrete outlines where 'thick' line reinforcement is used p Continuous -extra thick ' ' B Continuous - thin ' ' Reinforcement where 'thick' concrete outlines are used Reinforcement extent lines such as those across slabs, in plan across walls, in elevation along beams or columns for fitments Visible masonry walls including plans elevations Hatching of masonry over Diagonals across holes or recesses (under or over) Dimension lines and leaders Welding symbols C Continuous - thin, freehand D Continuous -thin, ruled with zig-zag F Dashed -thin :----------: Break lines around large areas such as slabs special details to larger scale A Break lines in individual elements such as at sections and the like V ------s�W� Fictitious outlines (of parts removed) .I I q s = 1 mm minimum q � 2s to 4s Hidden masonry, particularly walls under. Column strip and middle strip (panel) outlines on plan views Hatching for masonry under (continued) COPYRIGHT AS/NZS 1100,501:2002 10 TABLE 2.1 (continued) I 2 3 4 Designating letter Type of line Example of line Application N G Dashed -medium ------s and q as in F - Chain-thin -- - -- WJL H Chain-thick at ends and change of direction; -;W� Diagrammatic representations of temporary bracing members or structural elements. Reinforcement indicated in view shown, although fully detailed elsewhere - Gridlines Centre-lines q s = 1 mm minimum q = 2s to 4s p = 3q to 10q B--7 I I -thin elsewhere Hidden outlines of structural or supporting elements. Cutting plane for a section indicating direction of view. Where the type G line would conflict with any other line, it should be omitted, and only the section cross-references and changes of direction should be shown I L_-e J K s, q, and p as in G -------- Chain -thick s, q, and p as in G -s, q, and p as in G Chain -thin, double dashed Indication of a surface to meet a special requirement such as granolithic or terrazzo finish, or to receive special treatment Match lines between drawings Outline of adjacent or existing parts TABLE 2.2(A) CODES FOR CONSECUTIVE NUMBERING SYSTEM­ PREFIX (SEE CLAUSE 2.5,2) Location or floor level Prefix code Sequential (Numerical) Levels Lowest level Then in ascending order, e.g. Tenth level 10 Traditional (Naming) storeys (Non-preferred) Roof R Second floor, etc. 2, etc. First floor Mezzanine M Ground floor G Basement B Footing level F COPYRIGHT 11 AS/NZS 1100,501:2002 TABLE 2.2(B) CODES FOR CONSECUTIVE NUMBERING SYSTEM-STEM (SEE CLAUSE 2.5.2) Structural element Stem code Beam B Column C Joist J Bracing- vertical VB Bracing - general BR Fly brace FB Door header DH Fascia truss FT Rafter R Door column DC Strut (non-vertical) s Lintel L Purlin p Girt G Footings Beam footing Pad footing Strip footing FB FP SF Pier (or pedestal), pile p Pile cap PC Portal frame PF s Slab Stair Stair flight Stair landing F L Truss T w Wall Retaining wall RW 2.5.4 Columns and footings Columns may be identified either by(a) the consecutive numbering system (see Clause 2.5.2); or (b) the intersection of gridlines at or near the column (see Clause 2.5.3). Footings should be identified in similar fashion to the columns. 2.5.5 Grid marks Grid marks may be used to assist in the ready location of a particular dimension or feature of interest on a structural drawing. Such usage is distinct from element identification by the grid reference system and, therefore, care should be taken to avoid confusion between the markings associated with each. COPYRIGHT AS/NZS 1100.501:2002 12 2.6 INFORMATION TO BE SHOWN ON ORAWINGS 2.6.1 General Information to be shown on the drawings shall include any required design information and such items as are specified in the respective structural design codes, or as instructed by the designer. Each drawing shall provide all the information necessary for the construction of the work shown and should omit irrelevant details. References should be given to associated drawings for particular details or for showing the relationship with other components, and to schedules. Information should include datums, such as survey marks, referenced to permanent structures or either the Australian Height Datum (AHD) or the New Zealand height datum of Mean Sea Level (MSL). Written descriptions on drawings shall be clear and concise. Instructions should be positive and written in the imperative mood. Special requirements relating to construction details should be noted or referenced on the drawing. Clarity of detailing and dimensioning is essential. 2,6,2 General notes General notes, where provided, should be presented with Clause or reference numbers and upper and lower case lettering, either on a separate drawing or on the drawings to which they refer. For the information required on drawings or general notes, reference should be made to the relevant Standards listed in Clause I . I . 2.6.3 Design layout drawings Design layout drawings should show member sizes and locations. 2.6.4 Amendments An amendment to an issued drawing shall be numbered or otherwise designated and the amendment described in the amendment box. The altered text and pictorial aspects for that drawing issue only shall be highlighted by drawing a cloud, made up of a series of arcs, around the amendment and the cloud designated with the number or other designation, preferably in a triangle. 2.7 DRAWING SCALES 2.7,1 Scale requirements Drawing scales shall comply with the requirements of AS 1 100. 1 0 1 . Different scales on one sheet should be kept to a minimum, with all scales clearly indicated. Drawings should have a minimum scale for details of I :25, to allow for reduction of prints to half-size. 2.7.2 Block scales Block or graduated scales (as defined in AS 1 100.101) should be included on all drawings. 2.8 CONVENTIONS FOR CROSS-REFERENCING 2.8.1 General The convention for elevation, section and detail cross-references is complementary, i.e. the cross-reference given on the sheet from which an elevation, section or detail is taken is complemented by the cross-reference on the associated sheet where the elevation, section or detail is shown. COPYRIGHT 13 AS/NZS 1100.501:2002 Examples of elevation, section and detail cross-references are shown in Figures 2.2, 2.3 and 2.4. The following principles apply: (a) The orientation of the reference numbers and letters should be upright when read looking from the bottom of the sheet. (b) The same notation (numbers or letters) should not be used for both sections and details. (c) The letters I, 0 and Q should not be used in letter sequences. (d) Elevations, sections and details should be placed in their order of designation. ( e) Where possible (i) plans for the one project should be oriented in the same way on all drawings; (ii) elevations, sections and details, particularly horizontal sections, should be given the same orientation as in the main drawing; (iii) vertical sections should always be drawn erect; (iv) sections should be taken looking from the bottom of the drawing to the top, or from right to left; and (v) for bridges and roadworks, plans and elevations should be drawn in the direction of increasing chainage from 'left to right', and sections should be drawn in the same direction. NOTE: Sections on skew structures, such as a skew bridge deck in plan, may show the cutting plane along the skew line but with the section showing the square width to enable the structural elements to be drawn with least ambiguity. 2.8.2 Elevation cross-reference An elevation cross-reference should be shown as set out in Figure 2.2. The circle diameter and lettering height should be as follows: (a) Figures 2.2(a) and (b) ............................................... 12 mm dia. and 3 mm lettering. (b) Figures 2.2( c) ........................................................... 1 8 mm dia. and 5 mm lettering. 2.8.3 Section cross-reference A section cross-reference should be shown as in Figure 2.3. The following particulars shall apply: (a) In the top half of the circle, the number ( or letter) shall be of the section itself. (b) In the bottom half of the circle, the following shall apply, as appropriate: (i) On the sheet where the section is taken The number shall be of the associated sheet where the section is shown. If it is shown on the same sheet, a dash ( -) shall be used. (ii) On the sheet where the section is shown The number shall be of the sheet from which it was taken. If it is taken from the same sheet, a dash ( -) shall be used. (c) An arrowhead shall show the direction of viewing, and an external line shall show the cutting plane. (d) The circle diameter and lettering height shall be as follows: Figures 2.3(a) and (b) .................................... 12 mm dia. and 3 mm lettering. (i) Figure 2.3( c) ... ... ... ..... ..... ............ ...... .... ... ... .. 18 mm dia. and 5 mm lettering. (ii) COPYRIGHT AS/NZS 1100.501:2002 14 2.8.4 Detail cross-reference A detail cross-reference should be shown as in Figure 2.4. The following particulars apply: (a) In the top half of the hexagon, the letter (or number) shall be of the detail itself. (b) In the bottom half of the hexagon, the following shall apply, as appropriate: (i) On the sheet where the detail is taken The number shall be of the associated sheet where the detail is shown. If it is shown on the same sheet, a dash ( - ) shall be used. (ii) On the sheet where the detail is shown The number shall be of the sheet from which it was taken. If it is taken from the same sheet, a dash ( -) shall be used. (c) On the same sheet, an additional arrow on a leader may be used to show where the detail is drawn (see Figure 2.4(b)). ( d) The hexagon size and lettering height shall be as follows: (i) Figures 2.4(a) and (b) ...........12 mm across opposite corners and 3 mm lettering. (ii) Figure 2.4(c) . . ......... ... ... ... .18 mm across opposite corners and 5 mm lettering. NOTE: For a cross-reference of a section on a detail, use a circle as for other sections. la) [bl (cl E l e v a tion 3, taken and s h o w n on same sheet (circle diame t e r : 12 mm) E l eva tion number Dash indi c a t e s s h o w n on same sheet E l e v a tion 6, shown on Sheet 7 (circle diame t e r : 1 2 mm) Title f o r Eleva tion 8 taken from Sheet 9 (cir c l e diame t e r : 18 mm) FIGURE 2.2 E l e v a tion number Sheet where shown C L E V A T I CJ N CD g e orn oo oom"m Sheet where taken EXAMPLES OF ELEVATION CROSS-REFERENCES (SEE CLAUSE 2.8.2) COPYRIGHT 15 (al (bl (cl AS/NZS 1100.501:2002 (B @- Section 7 , t a k e n f r o m a n d shown o n s a m e s h e e t {circle diameter: 12 mm) Sections 2 o r 3 shown o n S h e e t 16 ( c i r cl e d i a m e t e r : 1 2 mm) 4 or S E C T O N CD Title for S e c t i o n 2 taken from Sheet 5 { c ircle d i a m e t e r : 18 m m ) S e c t i o n No. D a s h indic a t e s s h o w n on same s h e e t S e c t i o n No. Sheet w h e r e s h o w n Section No. Sheet where shown Section No. Sheet where taken NOTE: Triangular pointer may be filled-in for emphasis. FIGURE 2.3 EXAMPLES OF SECTION CROSS-REFERENCES (SEE CLAUSE 2.8.3) (al D e t ail A, taken from a n d shown on same sheet H e x a g o n : 12 mm a c r o s s c o r n e r s (bl D e tail B , s h o w n on S h e e t 16 H e x a g o n : 1 2 mm a c r o s s c o r n e r s (cl T i t l e f o r D e t ail B taken from Sheet 8 H e x a g o n : 18 mm a c r o s s c o r n e r s D e t a il l e t t e r D a s h indica t e s s h o w n on same sheet D e t a il number Sheet w h e r e s h o w n Detail letter Sheet where taken FIGURE 2.4 EXAMPLES OF DETAIL CROSS-REFERENCES (SEE CLAUSE 2.8.4) COPYRIGHT AS/NZS 1100.501:2002 16 2.9 ARRANGEMENT OF DRAWINGS IN A SET Drawings should be collated in the following sequence (first drawing to last)(a) General notes. (b) General arrangement drawings. (c) Footings. (d) Columns. (e) Framing plans. (f) (g) Elevations. (h) Details. Cross-sections. In a multi-storey building, drawings for each storey should be grouped as follows: (i) Floor plan. (ii) Beams. (iii) Sections. NOTE: A drawing may incorporate more than one ofthe above. COPYRIGHT 17 S EC TIO N 3 AS/NZS 1100.501:2002 PAR TIC U L AR APPLIC AT I O N S 3.1 GENERAL This Section sets out requirements for drawings for structures, made from particular materials. For composite structures, discretion should be used in selecting the provisions applicable to the principal material used in the particular structure. 3.2 REINFORCED AND PRESTRESSED CONCRETE 3.2.1 Concrete drawings Concrete drawings should clearly show the dimensions and shape of the structural element or elements depicted. The classification and designation, size, shape, extent and location of all reinforcement shall also be clearly shown. Depending on the complexity of the element, the detail drawing may show both the concrete outlines and reinforcement on the same view or provide separate views, or drawings for each. NOTE: For concrete beams, depth is specified first. For strip footings, width is specified first. 3.2.2 Notation for reinforcement 3.2.2.1 General Reinforcement shall be specified by the classification and designation of bar and reference number of mesh (see AS/NZS 4671). Where a schedule is prepared in conjunction with the drawings, a reference number for that schedule should be given on both schedule and drawing. Reinforcement shall be specified on the view of the structural element in which the reinforcement will be first placed. For example, where a bar is placed in a slab and extends into a wall it shall be specified on the plan of the slab. 3.2.2.2 Bars Bar reinforcement shall be specified by the number of bars, type, size, spacing and location, and, if applicable, by a shape code and bar mark. Spacing is normally specified at right angles to the bar direction and any variation should be fully detailed, e.g. for skewed bars. One of the following notations shall be used: (a) The following information concerning reinforcing bars shall be given on the drawing: Example 19 D 500 N 16 L 23 200 T Item Number (optional in a slab) Shape Strength grade Ductility class Size, in millimetre Shape code ( optional) Bar mark (optional) Spacing, in millimetres Location (see Clause 3 .2.2.4) COPYRIGHT ASINZS 1100.501:2002 18 The information concerning the example presented should be written as follows: (b) (i) If bar marking is used .............................................. 1 9-D500N1 6-L-23-200T. (ii) If bar marking is not used....................................................D500N16-L- 200T. The following information concerning bundles of reinforcing bars shall be given on the drawing: Item Number of bundles Number of bars in a bundle Shape Strength grade Ductility class Size, in millimetres Shape code, (optional) Bundle mark (optional) Spacing of bundles, in millimetres Location (see Clause 3.2.2.4) Example 5 3 D 500 N 36 L 27 400 B The information concerning the example presented should be written as follows: (i) If bar marking is used ........................................... 5 x 3D500N36- L -27--400B. (ii) If bar marking is not used............................................ 5 x 3D500N36-L-400B. The preferred notation order is presented in (a) and (b). If a different notation order is used, a legend shall be provided. Delimiters, such as x, / or - shall be used if there are consecutive numbers in the notation. For complex structures it may be necessary to specify the bar mark number, type, size, shape, location and also the number of bars or the bar spacing, or both, as appropriate. NOTE: The use of bar marks, shape codes and bundle marks on engineering drawings is optional. Each set of 'identical' bars in a structure should be given the same bar mark. A group of bars in the same placing zone may be regarded as being 'identical' if they have the same type, size and bent shape. They can, however, have a varying length if supplied in a set for a tapered section. 3.2.2.3 Reinforcement schedule lengths A range of bending shapes for reinforcement is given in Tables 3.l(A) and 3.l (B). The scheduled length shall be taken as L. Where L is not specified in Table 3.l(A), the scheduled length shall be the sum of the out-to-out dimensions, 'A', 'B', etc. COPYRIGHT 19 AS/NZS 1100,501:2002 TABLE 3.l(A) BAR BENDING SHAPES (SEE CLAUSE 3.2.2.3) FIRST PREFERENCE BAR BENDING SHAPES Name Straight L-shape One 90 ° bend Double L-shape Two 90 ° bends Hooked bar One 180° bend Double hooked Two 180 ° bends Mesh Only if flat sheet V-shape Bend less than 90 ° U-shape 180° bend only Tie For beams or colums Shape code A s Al L LL A V u T r 1 1 1 1 11 1 1 L I D A C � [hooks in] B l_C:=:j B B L L B .I A B A B B B B B B A A B A A B B A A C L L j o = bending dia. B C C D A A B C A B A A B B C □ I B A� SH B Stirrup For beams [cogs in] SC Cranked column bar For lap splice cc tr· 1c A A specified even if equal A +B=L When A is standard, it A + B +C = L A = C = 0.5 (L-B) A and C standard A is length of main wires (6000 mm max.) B is extent of cross-wires including side laps Give C when angle ( 0 ) exceeds 70° D C D C A+B=L A would be critical B would be critical A +B + C=L A and C should both be may be omitted C A A Stirrup For beams C 7 B A is also the length L B Jc B r HH A A B A Comment A B Al H F Essential dimensions Diagram L L A is critical always B may be omitted only if not critical Specify U-shape not LL-shape when B is less than 20 bar diameters L = 2(A + B + C) C is a cog length L may be omitted generally; C also C L = 2A + B + 2C C is a hook length L and C may be omitted generally A A 1 l B ° B B B C L = 2A + B + 2C C is a cog length L and C may be omitted generally ·1 O�ion A A B C C D D L L = A + B where A is a lap-splice length C ;, 6 db, D ;, 2 db NOTES: 1 All dimensions are to intersection of straight portions at the outside of all types of bends. 2 'L' is the sum of the individual out-to-out dimensions 'A', 'B', etc. 3 Shape codes may vary from supplier to supplier. COPYRIGHT AS/NZS 1100,501:2002 20 TABLE 3.l(B) BAR BENDING SHAPES (SEE CLAUSE 3.2.2.3) SECOND PREFERENCE BAR BENDING SHAPES Name L Shape code A Rightangled crank shape � RC V-plus L-shape Double V-shape Diagram Name Right- angled truss i B ,1 C HD�l L A VL o I, 1 vv � EI• B I� . I rl D � !W1--I Joist bar or bent-up bar L-bend added to J-shape Double J-shape or truss bar Acute angle bend more than 90 ° Radiused bar M J LJ JJ A R C .I � if� I A --n-L I Free .I T1Tl E C B B D �D E =rT I shape 135 Hooked tie ° Diamond- shaped tie for columns Cross-over tie Circular tie for columns Link for columns A = o u t length R = ext r a d i u s code RT 1� Diagram I B HT XT 1-L"'ij D t __c:;_ [CJ � c_J_ DT � B C A I f A C I B CT � OD LH A� j Sph'al or helix A = la p B --==� '-====l L A -=.::_ SP �J o � Shape 0 C B B = pit ch number o f turns = E= A IB length = ,r0 (E + 3) Nonstandard shapes COPYRIGHT NS All shapes are to be drawn and dimensioned in full 21 AS/NZS 1100,501:2002 NOTES TO TABLE 3 . l (B) 1 2 All dimensions are to intersection of straight portions except where shown. First preference shapes with hooks and cogs are to be included here. 3 Shape codes may vary from supplier to supplier. 3.2.2.4 Mesh The designation for reinforcing mesh shall be as given in AS/NZS 4671 . NOTES: For example, a square mesh consisting of 9 mm diameter deformed ribbed bar at 200 mm centres, of grade 500 MPa low ductility steel, would be designated 'D500SL92'. 2 In the example given in Note I, if all the welded mesh ordered or required for a particular project was to be deformed ribbed bars, of the same strength grade but may vary in other characteristics, and there was a general note to this effect in the project plans and specifications, the designation may be abbreviated to 'SL92'. 3.2.2.5 Information for placing Sufficient information shall be provided to enable the reinforcement to be placed in its correct location. Cross-sections and intersections should be provided to ensure correct detail and to avoid conflicts in site placement. The abbreviations given in Tables 3.2 and 3.3 may be used to convey placing information. The abbreviation should be used following the notation of bar number, size and/or spacing, or mesh designation or as a special note applicable to the relevant detail as follows: (a) D500RL8 18B signifies that mesh D500RL8 1 8 is placed in the bottom of the slab. (b) 20 x D250Nl 6-200T signifies that bars D250Nl 6 are placed at 200 mm centres in the top of the slab. When near face and far face reinforcement are shown on the same elevation, the far face layer shall be indicated by a dashed extra-thick line (see Table 3.3). Where more than one layer of reinforcement is used in one face, additional information shall be given to define each layer and its relative position and direction. Numerals indicating the position of a layer relative to a surface shall be associated with an abbreviation indicating a face, for example: (i) T l , T2 indicate the first and second layers nearest the top face. (ii) B 1 indicates the layer closest to the bottom face. (iii) NF! indicates the layer closest to the near face. (iv) FF2 indicates the second layer from the far face. The drawing shall state the required clear cover to the reinforcement for each structural element. This may be done with a general note where the cover is uniform for all the structural elements, or by means of a dimension on the element concerned. COPYRIGHT 22 AS/NZS 1100.501:2002 TABLE 3.2 ABBREVIATIONS FOR REINFORCEMENT PLACING INFORMATION (SEE CLAUSE 3.2.2.5) Placing information Abbreviation Bottom face Centrally placed Top face Each way Each face B C T EW EF NF FF INT EXT H V Near face* Far face* Internal face External face Horizontal Vertical Layer nearest the concrete face Second layer from the concrete face Third layer from concrete face 2 3 *The direction of viewing should be carefully defined. 3.2.2.6 Splicing of bars Simplified representations are shown in Fi gures 3.1 and 3.2. TABLE 3.3 ,rJ EXAMPLES OF INDICATION OF BAR LAYING SEQUENCE (SEE CLAUSE 3.2.2.5) (a) Bottom and top layers shown on separate plans (b) Bottom and top layers shown on the same plan; the bottom layer to be indicated by a dashed extra-thick line (c) Alternative method for designating layers in a slab: when bottom and top reinforcement are shown in separate plans, designation of reinforcement layers need not be shown with the reinforcement. Instead, a legend should be added T2 T1 - 81 I I - - -82- t- Lay first bottom Lay l a s t top NOTE: This method is o f particular use when the slab reinforcement is complex t o draw. COPYRIGHT I I 23 la) FIGURE 3.1 (bl Tension coupler Compression coupler SPLICING OF BARS - GEN ERAL REPRESENTATION (SEE CLAUSE 3.2.2.6) la) T a p e r - threaded coupler (bl C o l d - f o r g e d ends and p a r allel t h r e a d s lei Rolled-on p a r allel t h r e a d s (di P a rallel t h r e a d s c u t i n t o bar (el Coupler s w a ge d o n t o bar (f) Coupler a t tached t o b a r b y s t u d s FIGURE 3.2 AS/NZS 1100,501:2002 SPLICING O F BARS-SPECIFIC REPRESENTATION (SEE CLAUSE 3.2.2.6) 3.2.3 Slab reinforcement 3.2.3.1 Bars For bars, one bar should be drawn in the direction in which it is laid in the placing zone and the width or extent of that zone shall be shown by the extent line, generally perpendicular to the bar axis (see Figure 3 .3). The intersection of bar and extent line should be indicated by a hexagon or a dot. Spacing shall be measured along the extent line. 3.2.3.2 Rectangular mesh For rectangular mesh, the direction of the main (closer spaced) wires should be drawn as in Figure 3 .4. The extent line shall show the coverage of the slab by the mesh. COPYRIGHT AS/NZS 1100.501:2002 24 3.2.3.3 Square mesh A similar method to rectangular mesh may be used for square mesh. However, provided that the sheet will cover the span without laps, no differentiation between wires is needed (see Figure 3.5). In large areas where one layer of mesh is used, the method shown in Figure 3.6 may be adopted, provided that confusion with other reinforcement does not occur. "' 1-0 � z "' "' a:' "' "' 0 E x tent line Direction of b a r line FIGURE 3.3 BAR REINFORCEMENT (SEE CLAUSE 3.2. 3.1 ) Direction of main wire E x t e n t line � � 0::, 0 a: _J FIGURE 3.4 RECTANGULAR MESH (SEE CLAUSE 3.2.3.2) Direction o f m a i n wire {a cros s s pa n ) E x t en t line "' (f) _J (f) FIGURE 3.5 SQUARE MESH (SEE CLAUSE 3.2.3.3) COPYRIGHT 25 AS/NZS 1100,501:2002 FIGURE 3.6 SIMPLIFIED DETAILING FOR MESH (SEE CLAUSE 3.2.3.3) 3.2.4 Notation for prestressing The applications of prestressed concrete construction are diverse but the methods of detailing vary little from those used for reinforced concrete except in the delineation of main stressing tendons. In post-tensioned prestressed concrete work, the tendons and ducts may be required to conform to predetermined curves, usually parabolic or a combination of parabolas. Detail drawings should provide sufficient information to enable the tendons to be accurately placed. Various types of stressing tendons are in use, each type having its special form of end anchorage. Particular care is required in detailing the end anchorages and anchorage blocks. Pre-tensioned prestressed concrete units are usually constructed using a number of tendons tensioned on a special prestressing bed. No special detailing is required for this form of construction, but correct reinforcement, spacing and special details should be shown or noted in the drawing. Example illustrations of live and dead anchors and a coupler are shown in Figure 3 .7. For information on steel tendon for prestressed concrete, see AS 1 3 1 0 and AS 1 3 1 1 . In addition to the notes on concrete strengths, type of normal reinforcing steel (if any), type of prestressing tendons and methods of tensioning, further notes should give details of the points to be used for lifting, handling and stacking the units. The hog of a member due to prestressing should be shown. Design information to be given in notes on the drawings should include all details required for construction of the element including the stressing force and sequence of stressing (see AS 3600 and NZS 3 101). 3.2.5 Profile decking The direction of the ribs in a structural profile decking shall be indicated with two-way arrows pointing in the direction parallel to the ribs. COPYRIGHT 26 AS/NZS 1100.501:2002 3.2.6 Joints in concrete Joints shown in concrete plans or elevations shall be indicated as follows: Joint type Construction j oint - general straight dowelled keyed Isolation joint Contraction joints keyed dowelled sawn or !rowelled joint Expansion joints dowelled keyed Abbreviation CJ CJ(S) DCJ KCJ IJ Line designation letter B F K G A KJ DJ SJ G K F DEJ KEJ K G 8 -'"'5 "--'0:'__ __, 1 0 0 --1--<i-- _JL 4 0 s t e p ( a ) Live a n c h o r FIGURE 3.7 lb) Coupler DIMENSIONS IN MILLIMETRES le) D e a d a n c h o r PRESTRESSED CONCRETE DETAILS-EXAMPLES (SEE CLAUSE 3.2.4) 3.3 STRUCTURAL STEEL 3.3.1 Design layout drawings Structural elements shall be shown on design layout drawings by type A lines. Light sections such as purlins may be shown in type B lines. The drawings should clearly show the total structure including the disposition of members. Member sizes and identifying mark numbers should be shown, preferably by means of a member schedule, or by designation immediately adjacent to the member on the drawing. Connections should be indicated by type and designation of a standard connection where possible. Standard connections shall be fully detailed in the design detail drawings unless referenced to another source. Non-standard or special connections should be clearly cross­ referenced to the appropriate design detail drawing (see Clause 2.8). COPYRIGHT 27 AS/NZS 1100.501:2002 3.3.2 Design detail drawings The design detail drawings should communicate all of the designer's intentions with the possible exception of items adequately covered in the general notes, specification, or by a standard detail or connection. These drawings should show the sizes of structural members, and should be set out so that all views represent those seen when making the component. In practice, angles and channels are marked out on the outer surfaces and are therefore better drawn showing these views. Where a design detail, e.g. a truss, is symmetrical about the centre-line, one half only need be detailed and annotated 'symmetrical about centre-line'. Opposite-hand noting should be used with caution, and only if the component is opposite-hand in all respects. The annotation for 'opposite hand' elements shall be noted specifically in the same way as with symmetrical items, e.g.: Truss, Mark T l -As shown. Truss, Mark T2-Opp. hand. General notes should be provided for details of items such as­ ( a) steel strength and grade; (b) weld size, type and electrodes; (c) bolt sizes and grades; ( d) surface treatment and protective coating; and ( e) any special fasteners. Unless standard connections or standard detail parameters are used, the drawings shall include details of all connections. 3.3.3 Designation of steel elements Designation of steel elements shall comply with AS 3678, AS/NZS 3679.1, AS/NZS 3679.2 and AS 1163. Table 3.4 indicates appropriate designations. The dimensions of rolled steel sections, plates and structural hollow sections may vary due to rolling tolerances as defined in AS/NZS 3679.1, AS/NZS 3679.2 and AS 1163 respectively. Where connections or other details are dimensioned, the closing dimensions should be omitted to allow for the variation that may occur. 3.3.4 Designation of welds and fasteners 3,3,4.1 Welds Symbols for welding shall comply with AS 1101.3, and welding terms with AS 2812. Where structures are built to AS 3990, AS 4100 or NZS 3404, weld details shall be provided in accordance with AS/NZS 1554 and should include the strength grade of electrodes. Alternatively for certain structures, welds may be specified by performance not symbols, e.g. CPBW (complete penetration butt weld), IPBW (incomplete penetration butt weld) CFW (continuous fillet weld). See AS 2812 for further details. 3.3.4.2 Bolts and bolting procedure Bolt size and property class should be nominated on design detail drawings, as appropriate. The bolting procedure shall be shown by that comprises(a) the property class of the bolt, i.e. 4.6 or 8.8, in accordance with AS 1111 or AS/NZS 1252 respectively; COPYRIGHT AS/NZS 1100.501:2002 28 (b) the tensioning of the bolt in accordance with AS 4 100 or NZS 3404, i.e. S for 'snug tight' ; T for full tensioning; and (c) where appropriate, the type of j oint, i.e. F for friction joint; B for bearing joint. Table 3.5 gives the bolting procedure designation for commercial and high strength structural bolts, together with their associated standard, nominal tensile strength and nominal yield strength. TABLE 3,4 DESIGNATION OF STEEL ELEMENTS (SEE CLAUSE 3.3.3) Section type Material standard Abbreviation Typical example of designation (See Notes 1 and 2) Welded beam AS/NZS 3679.2 WB 700WB 1 1 5, 1200WB455 Welded column AS/NZS 3679.2 WC 350WC197, 500WC440 New Zealand welded sections NZS 3404 Universal beam AS/NZS 3679.1 UB 150UB14.0, 610UB125 Universal column AS/NZS 3679.l UC 100UC14.8. 3 10UC158 Tee cut from UB AS/NZS 3679.1 BT 75BT7.0, 305BT62.5 Tee cut from UC AS/NZS 3679.1 CT 50CT7.4, 155CT79.0 Taper flange beams AS/NZS 3679.1 TFB lOOTFB, 125TFB Parallel flange channels AS/NZS 3679.1 PFC l 50PFC, 125TFC Taper flange channels AS/NZS 3679.1 TFC 75TFC, 125TFC Equal angles AS/NZS 3679.1 EA 25x25x6EA, 200x200x26EA Unequal angles AS/NZS 3679.l UA 65x50x5UA, 1 50x100x12UA Flat bar AS/NZS 3679. l FL 20x3 FL, 1 50x50 FL, 300x12 FL Round bar AS/NZS 3679.1 ROD or RD Square bar AS/NZS 3679.1 SQ Plate AS/NZS 3678 Circular hollow sections AS 1163 CHS 13 .5x2.3CHS, 61 O.Oxl2. ?CHS Rectangular hollow sections AS 1163 RHS 50x20xl .6RHS, 250x1 50x9.0RHS Square hollow AS 1 163 SHS 20x20xl .6SHS, 250x250x9.0SHS Cold-formed purlins and girts AS 1397 z Structural decking AS 1397 sections SWB, SWC, LB, SB, HB, PB, EB, TB, SC, HP, BP PLATE or PL C - 700SWB115, 350SWC197, 600LB60, 500PB158 16 DIA ROD or 100 RD 10 SQ, 40 SQ 250x150x16 PLATE 210010, 235030 C10010, C35030 Refer manufacturer's literature NOTES: Unless otherwise stated, dimensions are in millimetres. 2 Dimensions for the universal beam, universal column and cold-formed purlins are nominal dimensions. For angles, thickness designation may not be actual thickness. Refer to appropriate material Standard for sizes. 3 Mass in designation is to three significant figures but if mass is less than 10 kg/m, then two significant figures are used. COPYRIGHT AS/NZS 1100.501:2002 29 TABLE 3.5 BOLTING PROCEDURE DESIGNATION FOR COMMERCIAL AND HIGH STRENGTH STRUCTURAL BOLTS (SEE CLAUSE 3.3.4.2) Bolting procedure designation Bolt name Standard 4.6/S (see Note 1) Commercial AS 1 1 1 1 8.8/S (see Note 2) High strength structural AS 1252 8.8/TF (see Note 3) High strength structural 8.8/TB (see Note 3) AS 1252 High strength structural AS 1252 NOTES: Bolting procedure 4.6/S refers to commercial bolts of property class 4.6 conforming to AS 1 1 1 1, tightened using a standard wrench to a 'snug-tight' condition. 2 Bolting procedure designation 8.8/S refers to any bolt of property class 8.8, tightened using a standard wrench to a 'snug-tight' condition. 3 Bolting procedure designations 8.8/TF and 8.8/TB (or 8.8/T when referring generally to both types of bolt) refer specifically to high strength structural bolts of property class 8.8 conforming to AS 1252, fully tensioned in a controlled manner to the requirements of AS 4100 and NZS 3404. 4 For further information, see Australian Institute of Steel Construction documents 'Bolting of Steel Structures' and 'Standardized Structural Connections', and Hera Report R4-58 'Manual of Standard Connection Details for Structural Steelwork'. 3.3.4.3 Shear studs The representation of shear studs is shown in Figure 3.8. FIGURE 3.8 REPRESENTATION OF SHEAR STUDS (SEE CLAUSE 3.3.4.3) 3.3.4.4 Special fasteners On design detail drawings, other fasteners such as masonry anchors, gun fixing or rivets should be shown and fully specified. Full details of such anchorages and fixings should be shown on shop detail drawings. 3.4 TIMBER 3.4.1 Design layout drawings Structural elements shall be shown on design layout drawings by type A lines. The drawings should clearly show the total structure including the disposition of members and all dimensions necessary to define their position relative to each other and the total structure. COPYRIGHT AS/NZS 1100.501:2002 30 Member sizes and identifying mark numbers should be shown, preferably by means of a member schedule, or by designation immediately adjacent to the member on the drawing. Connections should be indicated by type and designation of a standard connection where possible. Standard connections shall be fully detailed in the design detail drawings unless referenced to another source. Non-standard or special connections should be clearly cross-referenced to the appropriate design detail drawing (see Clause 2.8). 3.4.2 Design detail drawings The design detail drawings should communicate all of the designer's intentions with the possible exception of items adequately covered in the general notes, specification or by a standard detail or connection. These drawings should be set out so that all views represent those seen when making the component. Where a design detail, e.g. a truss, is symmetrical about the centre-line, one half only need be detailed and annotated 'symmetrical about centre-line'. Opposite-hand noting should be used with caution, and only if the component is opposite-hand in all respects. The annotation for 'opposite hand' elements shall be noted specifically in the same way as with symmetrical items, e.g.: Truss, Mark T l -As shown Truss, Mark T2-Opp. hand General notes should be provided to(a) give details of items such as stress grade of timber, whether seasoned or unseasoned; (b) whether sizes are nominal or minimum (see Note 2); (c) bolt sizes and grades; (d) surface treatment and protective coating; and (e) any special fasteners. The drawings shall also include details of all connections, unless separate drawings are prepared, or standard connection details are used. NOTES: 1 For structural members, timber sections should be designated by the minimum sizes. 2 Some types of timber are ' scant cut', such that the nominal size includes the width of the saw cut necessary to produce that size. 3.4.3 Conventional representation of timber The representation of timber on design layout and design detail drawings shall comply with AS 1 100.301, and Table 3.6. The appropriate stress grade, joint group and durability class, as given in AS 1 720 and NZS 3603, should be specified, rather than reference to specific species and grade names. In special situations it may be necessary to nominate a particular species, in which case the standard trade name and reference number should be used in accordance with AS/NZS 1 148. COPYRIGHT 31 AS/NZS 1100.501:2002 TABLE 3.6 CONVENTIONAL REPRESENTATION OF VIEWS AND SECTIONS OF TIMBER MEMBERS (SEE CLAUSE 3.4.3) View or section Solid timber Round Laminates or plys Rectangular Horizontal End view Cross�section grain I Vertical g r a in 3,4.4 Conventional representation of fasteners and connectors The representation of fasteners and connectors on design layout and detail drawings shall be in accordance with Tables 3.7 and 3.8 respectively. Detailed information shall be provided by means of notes or detail drawings, indicating the size, number and location of fasteners or connectors. Fasteners or connectors not shown in Tables 3.7 and 3.8 shall be drawn out in detail on the design detail drawing concerned. COPYRIGHT AS/NZS 1100.501:2002 32 TABLE 3.7 TIMBER - CONVENTIONAL REPRESENTATION OF FASTENERS (SEE CLAUSE 3.4.4) Conventional representation Type of fastener Nails t----+ - - - - - +------! Wood screws Coach screws Bolts fl + + + COPYRIGHT 33 AS/NZS 1100.501:2002 TABLE 3.8 TIMBER-CONVENTIONAL REPRESENTATION OF CONNECTORS (SEE CLAUSE 3.4.4) Type of connector Conventional representation Split ring Shear plate Circular toothed (bulldog) connector Nailplate Toothed plate connector Glued connection IgI COPYRIGHT AS/NZS 1100.501:2002 34 3.5 MASONRY 3.5.1 Masonry drawings A masonry drawing should clearly show the dimensions and shape of the structural element or elements depicted. The type, size, shape, extent and location of any reinforcement shall also be clearly shown. NOTE: See also AS 3700 for information to be shown on drawings. 3.5.2 Conventional representation The representation of masonry on drawings shall comply with AS 1100.30I. Wall thicknesses should be designated by using the manufacturing dimension of the units or appropriate multiples of it plus the appropriate number of 10 mm joints; e.g. 110, 230, 350 or 90, 140, 190, 290 mm. 3.5.3 Reinforcement Drawings for reinforced masonry shall, as far as possible, follow the methods given in Clause 3.2. 3.5.4 Special fasteners Where masonry anchors are used to make a connection to masonry, the type of masonry unit and fastener shall be specified. NOTE: Some types of masonry are unsuitable for certain types of anchor. For example­ (a) extruded perforated bricks are unsuitable for expanding or chemical anchors; and (b) hollow blocks are unsuitable for explosive powered fasteners and expanding or chemical anchors. 3.5.5 Lintels Concrete, steel and timber lintels shall be shown in accordance with Clauses 3.2, 3.3 and 3.4. 3.5.6 Loadbearing walls Loadbearing masonry walls should be shown on structural drawings. NOTES: In a structural drawing, loadbearing walls in plan should be shown below concrete floors and shown using a Type F line 2 Non-loadbearing walls are not generally shown in plan or section, but if shown, they should be noted as such or shown with a compressible filler to the floor slab or beam. 3 Slip joints to concrete roofs should be shown using a Type A line. 3.5.7 Expansion joints Expansion j oints shall be indicated with a Type A line. COPYRIGHT