TRIBHUVAN UNIVERSITY INSTITUTE OF ENGINEERING DEPARTMENT OF CIVIL ENGINEERING Purwanchal campus, Dharan-8 A FINAL YEAR PROJECT REPORT ON STRUCTURAL ANALYSIS AND SEISMIC-RESISTANT DESIGN OF MULTI-STORIED CHYANGRE HEALTH CENTER Project report submitted in partial fulfillment of the requirements for the degree of bachelor in civil engineering (Course Code: CE755) SUPERVISOR Er. Yuman Shakya SUBMITTED BY : Pratik Ghimire 074/BCE/056 Sagar Acharya 074/BCE/066 Suman Adhikari 074/BCE/084 Tirtha Raj Kandel 074/BCE/093 Umang Ayer 074/BCE/094 Unique Roka 074/BCE/095 Yogendra Limbu 074/BCE/096 SUBMITTED TO : Department of Civil Engineering, Purwanchal Campus 1 2 Table of contents: A. Acknowledgment B. Abstract 1. Introduction 1. General Information 2. Executive Summary 3. background of Study 4. Problem Definition 5. Objectives 6. Significance of Study 7. Limitations 2. About Study Area 1. Location 2. About Structure 3. Location Plan 4. building Plan 3. Methodology 1. Literature Review 2. Data Collection 3. Data Analysis 4. Project Management Plan 5. budget Estimation 6. Time Schedule 7. Conclusion 8. Recommendation 9. References 10. Architectural Drawings 3 A. Acknowledgement The success of this project required a lot of guidance and assistance from many people and we are extremely fortunate to have got this all along the completion of our final year project work. Whatever we have done is only due to such guidance and assistance and we would not forget to thank them. Firstly, we would like to thank Institute of Engineering for including the final year project as a part of our curriculum. Special thanks go to Department of Civil Engineering for initiating and facilitating this Building Project to further enhance our knowledge of structural analysis and design. We respect and thank our Supervisor – Er. Yuman Sakya, for providing us all support and guidance during the working phase. We are thankful to and fortunate enough to get constant encouragement, support and guidance from all teaching staffs and Department of Civil Engineering which helped us in successfully completing our project work. Acknowledgement would be incomplete without mentioning our family members and friends who have been constant source of inspiration during the preparation of the project. 4 Pratik Ghimire 074/BCE/056 Sagar Acharya 074/BCE/066 Suman Adhikari 074/BCE/084 Tirtha Raj Kandel 074/BCE/093 Umang Ayer 074/BCE/094 Unique Roka 074/BCE/095 Yogendra Limbu 074/BCE/096 B. Abstract The theoretical knowledge gained during four year time was used in practical way in this project entitled as “Structural Analysis and Seismic-Resistant Design of Multi-Storied Chyangre Health Center”. The most important thing that we have addressed is the seismic resistance of building along with its structural stability. As per the recent following of the Gorkha Earthquake that occurred in 25th April, 2015 , it made the necessity of more seismically resistant hospitals and health centre. The analysis and design of our building is based on increasing the seismic capacity through proper configuration of the structure as well as proper designing and ductile detailing of structural elements. The entire design works is based upon IS code and ruled upon by the Limit State Design Philosophy; however capacity approaches are also adopted in required sections. Necessary Architectural drawing is drafted using AutoCAD software. The results of calculations are presented in tabular form and sample calculations are provided in detail to reduce bulkiness of the report. Sufficient figures and sketches have been introduced to illustrate the theories. References to the appropriate clauses of standard codes of practice have been made wherever necessary. 5 1. Introduction We are interested in carrying out a project work on the analysis and design of an earthquake resistant building, which is one of the topics recommended by the Department of Civil Engineering, for the fulfillment of the Bachelor in Civil Engineering program. The project selected by our group is Health Centre. The project we have selected is a multistorey residential building which contains the basic facilities such as Bathroom, Operation Theatre, Waiting Hall, Ramp, XRay Room, Ortho Ward,etc. General information Project title: Analysis and design of Multistoried RCC framed Chyangre Health Center Aim of the project: The main aim of the project work under the title is to acquire Knowledge and skill with an emphasis of practical application. Besides the utilization of analytical methods and design approaches, exposure and application of various available codes of practices is another aim of the work. Building site location: Pauwadungma, Bhojpur Name of the project group members: Pratik Ghimire 074/BCE/056 Sagar Acharya 074/BCE/066 Suman Adhikari 074/BCE/084 Tirtha Raj Kandel 074/BCE/093 Umang Ayer 074/BCE/094 Unique Roka 074/BCE/095 Yogendra Limbu 074/BCE/096 1.1 Executive summary As there is necessity of health center and hospitals in the rural community of Bhojpur i.e. Pauwadungma, it is necessary to design seismically resistant health center. As Nepal lies in active seismic zone, there occurs several minor tremors. Since we cannot design earthquake proof building, we attempt to design seismically resistant health center. The health center includes rooms such as Lobby, Waiting Hall, Doctors Room, Operation Room, Bathroom, Canteen, Emergency Ward, etc. 6 The design of the building will be based on the detailed plans of a proposed RCC building provided by the project supervisor. The design shall include the design of following components. 1. 2. 3. 4. 5. 6. 7. Foundation Beams Columns Slabs Lateral load resisting systems Staircase Ramp 1.2 Background Study The problem for the construction of structure in Nepal is lack of fund and to complete the project with limited resources. Chyangre being one of the fast developing cities of Nepal, there is huge requirement of Chyangre Health Center where people can get health facilities in easy way. The project will help us review different building course necessary. Nepal National Building Code has been produced by a team of Nepalese and international consulting engineers and architects in 1994 A.D. It includes a model set of minimum requirement for high rise building in matters of fire safety, human safety resistance to earthquake and structural stability. So, the building should be designed by giving huge priority to the earthquake resistance side of the building. 1.3 Problem definition The major problems that may occur in the project are as listed below: Due to Nepal’s location in seismically active zone priority must be provided by engineers’ toward earthquake resistant design of building. 1.4 Objectives The objectives of the project are listed below. Identification of structure arrangement of plan Modeling of the building for structural analysis Detail structural analysis using Structural Analysis Program To be able to determine the maximum serviceability and behavior of the structure in its life. To know different probable failure cases. Estimating total cost of building construction 7 To be able to use different codes for the RCC structure in public building. Design and Detailing various structural components Acquire knowledge on Earthquake Engineering. 1.5 Significance of Study This group under the project work has undertaken the structural analysis and design of Chyangre Health Centre. The main aim of the project work under the title is to acquire knowledge and skill with an emphasis of practical application. Besides the utilization of analytical methods and design approaches, exposure and application of various available codes of practices is another aim of the work 1.6 Limitations The project is limited within architectural design, structural design and drafting only. The geotechnical analysis has been neglected . Building is designed in accordance to given space and materials. Detail dynamics analysis is not being carried out. Other aspects of building such as electrical, sanitary, water supply etc are not analyzed. 2. About the study area 2.1 Location: Our study area lies in Pauwadungma, Bhojpur. 2.2 About Structure: It has 2 storey with a rooftop/helipad. Plinth area: 673.2 m2 Plot area: 2949.9 m2 Total ground coverage: 22.82 % Building Area Calculation: Ground Floor Area: 673.2 m2 First Floor Area: 658.2 m2 Void Area: 15 m2 Roof Plan Area: 48.2 m2 Height of the Building: 10.8 m 8 2.3 Location Plan Location 9 3. Methodologies 3.1 Literature Review 3.1.1 Code Every engineering design is the outcome of the past experiences and observations. It is necessary to justify the result of the analysis and design properly with reference to the preexisting standard results or the past experiences. Structural design is the methodical investigation of the stability, strength and rigidity of structures. The basic objective in structural analysis and design is to produce a structure capable of resisting all applied loads without failure during its service life. Safe design of structures can be achieved by applying the proper knowledge of structural mechanics and past experiences. It is needed to provide authentic reference to the design made i.e. the design should follow the provision made in codes of practices. Use of codes also keeps the designer to the safe side in case the structure fails within its service life. For this design, certain references and criteria are taken from the literatures discussed below. I. Nepal National Building Code (NBC: 000- 1994): Nepal National Building Code was prepared during 1993 as part of a bigger project to mitigate the effect of earthquakes on the building of Nepal. It deals primarily with matters relating to the strength of buildings. However, there are some chapters on site considerations and safety during construction and fire hazards. This code aims to bring uniformity to the building construction by providing some bye-laws and mandatory rules. But its development is relatively recent and it still lacks many documents required to support it. To compensate for this unavailability, the code frequently refers to Indian Standard codes. The four different levels of sophistication of design and construction that are being addressed in this National Building Code are as follows. i. International state-of-art ii. Professionally engineered structures iii. Buildings of restricted size designed to simple rules-of-thumb iv. Remote rural buildings where control is impractical. This project belongs to the second part of NBC i.e. Professionally Engineered Structures. As the National Building Code defines the use of international codes which meets the requirements stated in NBC, different Indian Standard codes are used for the design and analysis purpose. II. Indian Standard (IS) Codes of Practice: For the analysis and design of the building references have been made to Indian Standard code since National Building Codes of Nepal do not provide sufficient information and refers frequently to the Indian standard codes. Indian Standard codes used in the analysis and design of this building are described below: 1. IS: 875- 1987 (Reaffirmed 2003) - Code of Practice for Design Loads (Other than Earthquake) for Buildings and Structures: A building has to perform many functions 10 satisfactorily. Amongst these functions are the utility of the building for the intended use and occupancy, structural safety, fire safety; and compliance with hygienic, sanitation, ventilation and daylight standards. The design of the building is dependent upon the minimum requirements prescribed for each of the above functions. The minimum requirements pertaining to the structural safety of the building are being covered in this code by way of laying down minimum designed load which have to be assumed for dead loads, imposed load, snow load and other external loads, the structure is required to bear. Strict conformity to loading standard recommended in this code claims to ensure the safety of the buildings and thereby reduced the hazards to life and property caused by unsafe structures as well as eliminates the wastage caused by the assumption of unnecessary heavy loading. This code is divided into five different parts for five different kinds of loadings. The different parts of the code are: Part 1: Dead Loads- Unit Weight of Building Materials and Stored Materials: This part deals with the dead load to be assumed in the design of the building. These loads are given in the form of unit weight of materials. The unit weights of the materials that are likely to be stored in the building are also given in the code for the purpose of the load calculation due to stored materials. This code covers the unit weight or mass of the materials and parts and components in the building that apply to the determination of the dead load in the design of building. Table 1 of this code covers unit weight of the building materials and Table 2 of the code covers the unit weight of the building parts or the components. Part 2: Imposed Loads Imposed load is the load assumed to be produced by the intended use or occupancy of a building including the weight of moveable partitions, distributed, concentrated loads, loads due to impact and vibrations and dust loads (Excluding wind, seismic, snow, load due to temperature change, creep, shrinkage, differential settlements etc.) This part of the code deals with imposed load of the building produced by the intended occupancy or use. Minimum imposed load that should be taken into consideration for the purpose of structural safety of the buildings are given in the code but it do not cover the incidental to construction and special cases of vibration, such as moving machinery, heavy acceleration from cranes hoist etc. Part 3: Wind Loads This part deals with the wind load to be considered when designing the building, structure and component thereof. This code gives the wind force and their effect (Static and Dynamic) that should be taken into account when designing buildings, structures and components 11 Thereof. In the code wind load estimation is done by taking into account the random variation of the wind speed with time. Part 4: Snow Loads This part of the code deals with snow loads on roofs of buildings. Roofs should be designed for the actual load due to snow or the imposed load specified in Part 2 whichever is more severing. Since location of the building is within Kathmandu Valley, there is no possibility of snowfall. Hence the snow load is not considered in the design. Part 5: Special Loads and Load Combinations This code loads and loads effects (Except the loads covered in Part 1 to 4 and seismic load) due to temperature changes, internally generated stress due to creep shrinkage, differential settlement etc. in the building and its components, soil and hydrostatic pressures, accidental loads etc. This part also covers the guidance for the load combinations. 2. IS 1893 (Part 1): 2002 Criteria for Earthquake Resistant Design of Structures (General Provision and Building): This code deals with the assessment of seismic loads on various structures and earthquake resistant design of buildings. Its basic provisions are applicable to buildings; elevated structures; industrial and stack like structures; bridges; concrete masonry and earth dams; embankment and retaining structures and other structures. Temporary supporting structures like scaffoldings etc. need not be considered for the seismic loads. It is concerned with the methods of determining seismic loads and the effects of various irregularities in a building can have upon its seismic response. This standard does not deal with the construction features relating to earthquake resistant design in building and other structures. 3. IS 13920: 1993 (Reaffirmed 2003) Ductile Detailing of Reinforced Concrete Structures Subjected to Seismic Force- Code of Practice: This standard covers the requirements for designing and detailing of monolithic reinforced concrete buildings so as to give them adequate toughness and ductility to resist sever earthquake shock without collapse. The provision for the reinforced concrete construction given in the code are specifically to the monolithic reinforced concrete construction. For precast and prestressed concrete members, its use is limited only if they can provide the same level of ductility as that of monolithic reinforced concrete construction during or after earthquake. The code include the detailing rules for flexural members, column and frame member subjected to bending and axial loads and shear walls. 12 4. IS 456: 2000 (Reaffirmed 2005) Plain and Reinforced Concrete – Code of Practice: This Indian Standard code of practice deals with the general structural use of plain and reinforced concrete based on Limit State Design Method. According to the code, plain concrete structures referred to those structures where reinforcement if provided is ignored for determination of the strength of the structure. This code does not cover special requirements for the structures like bridges, chimneys, hydraulic structures, earthquake resistance buildings etc. but allows the use of separate code for those structures in conjunction with this code. 5. IS 4326: 1993 (Reaffirmed 2003) Earthquake Resistant Design and Construction of Buildings – Code of Practice: This standard deals with the selection of materials, special features of design and construction for earthquake resistant buildings including masonry construction using rectangular masonry units, timber construction and buildings with prefabricated flooring or roofing elements. 6. IS 5525: 1969 (Reaffirmed 1990) Recommendations for Detailing of Reinforcement in Reinforced Concrete Works: This standard deals with the general requirements of detailing of reinforcement in reinforced concrete structures with some suitable modifications whenever necessary. This code includes the common method of detailing of reinforcement based on good practice with deviations made in special cases to comply with IS 456. 7. IS 1642: 1989 (Reaffirmed 1994) Fire Safety of Buildings (General): Details of Construction – Code of Practice: This standard lays down the essential requirements of fire safety of buildings with respect to details of construction. 8. IS 2950 (Part I): 1981 (Reaffirmed 1998) Code of practice for design and construction of Raft Foundations: Raft foundation is a substructure supporting an arrangement of columns or walls in a row or rows and transmitting the loads to the soil by means of a continuous slab with or without depressions or openings. Such types of foundations are found useful where soil has low bearing capacity. This standard covers the design of raft foundation based on conventional method (for rigid foundation) and simplified methods (flexible foundation) for residential and industrial buildings, store-houses, silos, storage tanks, etc., which have mainly vertical and evenly distributed loads. III. Indian Standard Special Publications (SP): For the clarification and explanation for the clauses and equations mentioned in Indian Standard Codes, Bureau of Indian Standard has published some special 13 Publications including charts and tables for required values like material properties and explaining examples of designs. Following design aids will be used for the design of the structure: 1. SP 16: Design Aids for Reinforced Concrete to IS 456-1978: This handbook explains the use of formulae mentioned in IS 456 and provides several design charts and interaction diagrams for flexure, deflection control criteria, axial compression, compression with bending and tension with bending for rectangular cross-sections (for circular section in case of compression member) which can greatly expedite the design process if done manually. This design aid is particularly useful for the preliminary design. 2. SP 22: Explanatory Handbook on Codes for Earthquake Engineering (IS 1893: 1975 and IS 4326: 1976): The theoretical background behind many of the code provisions has been elaborated herein. Additionally, many worked out examples explaining the use of equations and charts in the code can also be found in this handbook. 3. SP 24: Explanatory Handbook on Indian Standard Code of Practice for Plain and Reinforced Concrete IS 456: 1978: SP 16 is meant to aid the calculation process, while SP 24 is meant to aid the conceptual understanding of the IS 456 code. It contains clause by clause explanation of the original code. The logic and justification behind the various equations and assumptions in the code are well explained here. 4. SP 34: Handbook on Concrete Reinforcement and Detailing: The compilation of provisions and guidelines regarding reinforcement detailing scattered throughout IS codes 456, 4326, 5525 and 13920 can be found in this handbook. Searching for that information in the original codes can be very time consuming. This handbook presents all that information in a well-organized manner. IV. Textbooks on RCC Design and Earthquake Engineering: Many available books related to design of reinforced concrete structure and earthquake engineering written by distinguished authors such as Pillai and Menon, SN Sinha and AK Jain are based on the Indian Standard Codes of Practice and provide sufficient theoretical background with illustrative examples. So, for the analysis and design, reference from such textbooks is very helpful. Books related to foundation engineering will also be valuable in the design of building foundation. Besides these, other books related to structural mechanics (Statics and Dynamics) will also be helpful for performing and verifying the analysis output from computer software. 14 Apart from these references there may require data related to the past earthquake, the earthquake zoning map and soil condition of the site. These data may be obtained from the government authorities and other concerning organizations. 3.1.2 Classification of Building a. Residential Building: These buildings include one or two private dwellings, apartment houses (flats), hotels, dormitories etc. b. Educational Building: These buildings include any building used for school, college or day care purposes involving assembly for instruction, education or recreation. c. Institutional Building: These buildings include any building or part which is used for medical treatment etc. Such as Hospitals, Health Centers, nursing homes, orphanages, sanatoria, jails, prisons, mental hospitals etc. d. Assembly Building: These buildings may include any building or part of a building where a group of people gathers for recreation, amusement, social, religious or such types of purposes such as theaters, assembly halls, exhibition halls, restaurants, museum, club rooms, auditoria etc. e. Business Building These shall include any building or part of a building which is used for business transactions, keeping records of accounts, town halls, city halls, court houses etc. f. Mercantile Building These shall include those buildings which are used for soap, market, stores, wholesale or retail. g. Industrial Building: 15 This types of building mainly used for manufacturing purposes. Here products or materials of all kinds and properties are fabricated, assembled or processed, for example, gas plants, refineries, mills, dairies etc. h. Storage Building: These buildings are generally used for the storage or sheltering of goods, wares, or merchandise like warehouses, cold storages, garages, stables, transit sheds etc. i. Hazardous Buildings: These buildings include any building which is used for storage, handling, manufacture or processing of highly combustible explosive materials or products which are liable to burn with extreme rapidly which may produce poisonous fumes, building which is used for storage, handling or manufacturing highly corrosive, toxic, acid or other liquids or chemicals producing flame, fumes explosive etc. 3.1.3 Limit State Design Method Limit state design (LSD), also known as load and resistance factor design (LRFD), refers to a design method used in structural engineering. A limit state is a condition of a structure beyond which it no longer fulfills the relevant design criteria. The condition may refer to a degree of loading or other actions on the structure, while the criteria refer to structural integrity, fitness for use, durability or other design requirements. A structure designed by LSD is proportioned to sustain all actions likely to occur during its design life, and to remain fit for use, with an appropriate level of reliability for each limit state. Building codes based on LSD implicitly define the appropriate levels of reliability by their prescriptions. A. Limit state of collapse The limit is also called as strength limit state as it corresponds to the maximum load carrying capacity i.e. the safety requirements of the structure. To achieve the safety requirement, partial or total collapse of the structure is prevented not only under normal expected loads( i.e. service loads)but also under the loads that occur less frequently during the life time of the structure such as due to earthquake or high wind and accidental loads ( blast, impacts, etc.) B. Limit state of Serviceability A structure or structural component designed to resist collapse under ultimate loads should perform satisfactorily under service loads, without causing discomfort to the user due to excessive deflection, cracking, vibration and so forth. This means that any structure which satisfies safety may not necessarily satisfy the serviceability requirements. For e.g. Slabs may have sufficient 16 strength to resist the designed load effect, but may cause discomfort due to excessive vibration. Similarly, beam designed to provide sufficient against applied loads may acquire excessive deflection leading to cracking of the slab it is supporting, which will result leaking of the room. 3.1.4 Earthquake Resistant Structure Structures made with a goal of resisting seismic as well as various tectonic activities are the Earthquake resistant structure. While no structures can be entirely immune to damage from earthquake, the goal of earthquake resistant constructions is to erect structures that fare better during seismic activity than their conventional counter parts. 3.1.5 Acoustics in Building Building acoustics is the science of controlling noise in building. Thus it includes the minimization of noise transmission from on space to another and the control of characteristics of sound within space themselves. Building acoustics are important consideration in design, operation and construction of most building, and can have a significant impact on health and wellbeing, communication and productivity. They can be particularly significant in spaces such as concert halls, recording studios, lecture theaters, auditorium hall and so on, where the quality of sound and its intelligibility are very important. 3.1.6 Structural analysis method A. Seismic Coefficient Method Seismic analysis is a subset of structural analysis is the calculation of the response of a building (or non-building) structure to earthquakes. It is part of the process of structural design, earthquake engineering or structural assessment and retrofit in regions where earthquakes are prevalent. Seismic coefficient method uses also a set of equivalent lateral loads for seismic analysis of structures. For obtaining the equivalent lateral loads, it uses some empirical formulae. The method consists of following steps. Using total weight of the building base shear is obtained V=W*C Where c is period dependent seismic coefficient Distribution of lateral load to all floors B. Response Spectrum Method 17 A response spectrum is simply a plot of the peak or steady state response (displacement, velocity or acceleration) of a series of oscillators of varying natural frequency, that are forced into motion by the same base vibration or shock. The resulting plot can then be used to pick off the response of any linear system, given its natural frequency of oscillation. One such use is in assessing the peak response of building to earthquakes. The science of strong ground motion may use some values from the ground response spectrum (calculated from recordings of surface ground motion from seismographs) for correlation with seismic damage. C. Time History Method It is an analysis of dynamic response of structure at each increment of time when subjected to specific ground motion in history. 3.2 Data Collection Data collection is obtaining data such as bearing capacity of soil, geological condition, topography, location etc. It is done usually in two stages. They are as follows: a) Primary Data Collection b) Secondary Data Collection a. Primary Data Collection In this stage of data collection, data is collected as owners wish and their requirements. Site should be visited and the representative soil sample is taken and its bearing capacity is found out in the laboratory. General survey of the site is done. b. Secondary Data Collection Secondary data are collected from sources other than visiting the site such as 50 years hydrological data of that particular place from internet or municipality office, geological data such as soil condition, either the location is in fault, fold or joint region, possibility of occurrence of natural disasters such as flood, landslide, erosion etc. the topographical map of the area can be obtained either from internet or municipality office. Seismological data and maps can be obtained from internet. 3.3 Data Analysis The collected data is analyzed in following way: 1. Seismological data is analyzed to check earthquake susceptibility. 18 2. Topographical maps and data are analyzed to know about geological condition of that place. 3. Other data like meteorological, sounding, air conditioning etc. are also analyzed. Work Flowchart: 4. Project Management Plan In project management plan the division of works is to be carried out among the members. Project Management Institute, Inc. (PMI) defines project management as “the application of Knowledge, skills, tools and techniques to a broad range of activities in order to meet the requirement of particular project.” The process of directing and controlling a project from start to finish may be further divided into 5 basic phases: a. Project conception and initiation: An idea for a project will be carefully examined to determine whether or not it benefits the organization. During this phase, a decision making team will identify if the project can realistically be completed. b. Project definition and planning: A project plan, project charter and/or project scope may be put in writing, outlining the work to be performed. During this phase, a team should prioritize the project, calculate a budget and schedule, and determine what resources are needed. 19 c. Project launch or execution: Resources tasks are distributed and teams are informed of responsibilities. This is a good time to bring up important project related information. d. Project performance and control: Project managers will compare project status and progress to the actual plan, as resources perform the scheduled work. During this phase, project managers may need to adjust schedules or do what is necessary to keep the project on track. e. Project Close: After project tasks are completed and the client has approved the outcome, an evaluation is necessary to highlight project success and/or learn from project history. PROJECT BUDGET ESTIMATION Considering various estimating techniques, we have come across the total estimated cost of building is approximately 7 to 8 crores. 20 6. Time schedule By Mangsir Works Time (weeks) Literature review 1 Data collection 2 Load calculation 3 Etabs Training 3 Structural analysis 1 Structural design 3 Detailing and drawings Final report 2 Report revision 1 1st week 2nd week 3rd week 4th week By Poush 5th week 6th week 7th week 8th week By Magh 9th week 10th week 11th week 12th week 2 Time (Week) 21 7. Conclusion Health Center Design and Analysis is the most challenging design as the building proposed will be more aesthetic, economical, efficient, and Earthquake resistant which can withstand natural disasters. The building will be able to withstand earthquake up to magnitude of 9 Richter scale. Due to the uniform distribution of reinforcement in both vertical and horizontal directions, through each element, increased tensile resistance and ductile behavior of elements could be achieved. In this construction system, structurally, each wall and slab behaves as a shear wall and a diaphragm respectively, reducing the vulnerability of disastrous damage to the structure during natural hazards. Hence the construction system can safely resist lateral or cyclic loading, when compared to other building. Along with that, proper sound proofing materials are provided that makes the Auditorium acoustically good as desired. 22 8. Recommendation We suggest the building to be made with sufficient spacing. Every building should be resistant to earthquake vibrations. If the bearing capacity of soil is not sufficient then improved foundation should be introduced such as pile foundation. The building should have sufficient lighting and ventilation system as the proposed building is public hall. The building should be aesthetic, acoustically sound and proper sound absorbing materials should be introduced. 23 9. References 1. Reinforced Concrete Design Dr. Kamal Bahadur Thapa & Er. Bharat Bahadur Dhakal 2. Reinforced Concrete Limit State Design A.K. Jain 3. National Building Code, Nepal, 2072 4. Indian Standard Code, Nepal, 2072 5. Dharan Sub-metropolitan City, Annual Sub-metropolitan Report, 2072 6. Previous Proposal Samples 7. Wikipedia.org 8. www.ioebooster.com 24 8. ARCHITECTURAL DRAWINGS Ground Floor 25 First Floor 26 Roof Plan 27 South Elevation 28 North Elevation 29