Constructability Review Items
Design Development
Center for Design Innovation
November 21, 2007
CENTER FOR DESIGN INNOVATION
FILE NO. 060664601A
DESIGN DEVELOPMENT
CONSTRUCTABILITY REVIEW ITEMS
November 21, 2007
The intent of this Design Development Constructability Review is to identify specific items which may
simplify construction in the field, reduce cost or provide further clarity to the CM during the pricing
process. Outlined below is a list of items designated by drawing which fall into this category. Upon
receipt of more defined drawings and specifications, the SSJV team will provide an additional review to
supplement this document. Additionally, specific cost saving / constructability related items
which fall into this category may be found within the Design Development Value Analysis
Section herein. Items in green font below represent the response from the design team, CJMW with
SSJV’s additional comments (noted in blue), where applicable, noted thereafter.
I.
CONSTRUCTABILITY ITEMS
A201
1. Note 14 – Clarify locations of where steel angle bracing occurs at hollow metal frames.
This is a general note pertaining to any unsupported frames spanning a distance that
would require structural steel for stability.
Please define specific requirements on final drawings.
2. Note 20 – Will a specific brand or type of vertical expansion joint cover assembly be utilized for
the project?
Our final specifications will be written to specify @ least three manufacturers from
the detail graphically shown on the contract documents.
OK, we assume that the separation between the load bearing structure and the steel
frame structure results in an expansion joint condition.
A202
1.
What type of frames are required (i.e. hollow metal, aluminum, regular, acoustical, etc.) serving
the control room (room 213) and viewing lobby (room 214)?
Control Room 213: Acoustical frame and glazing
View Lobby 214: Hollow metal
OK
1
Constructability Review Items
Design Development
Center for Design Innovation
November 21, 2007
A204
1.
Given the height difference between the roof transitions at the spine section of the building,
should a gutter be added to this roof?
For aesthetic reasons, let’s provide a parapet condition with membrane roofing,
internal roof drains overflowing to roof below with emergency overflow scuppers.
OK, current pricing model is based on this change.
2.
Is a roof drain(s) needed at the section of roofing located above the diagonal bump out within
Creative Design Room 304?
I think we need one.
OK, current pricing model is based on this change.
A300
1.
In addition to the ACT ceiling, what type of wood ceiling is envisioned for the auditorium?
A wood panel insert similar to Armstrong “Wood Works Bamboo” series.
OK, current pricing model is based on this change.
2.
Please provide some guidance as to the size of acoustical panels required within the auditorium
(room 103), sound stage (room 125), and other areas?
I don’t know @ this stage, it will depend on the STC & NRC rating for the required
spaces.
Current pricing model reflects using a STC rated frame / door of 42
3.
Please describe intent of ceiling system within the lobby room 104 (i.e. suspended wood / fabric)
Decorative wood insert panels (either slatted or solid) and translucent fabric panels
in a suspended wood grid.…… (sort of floating clouds between column supports).
Current pricing model includes an allowance of $35,000 the decorative ceiling work
in the atrium and lobby.
4.
What type of engineered wood flooring system is envisioned for the sound stage? Is this flooring
system similar to the floating floor system in the motion capture room?
The Motion Capture floor is more of a ‘floating floor’ similar to dance studios. This
application is a structural wood floor applied directly to the floor slab with the ability
to handle the impact load of an automobile.
OK, current pricing model is based on this clarification.
5.
Atrium room no. 123 is not noted in finish schedule. What is the envisioned ceiling system in this
location?
Same finishes as Lobby 104.
OK, current pricing model is based on this clarification.
6.
Catering kitchen indicates both an ACT / wood ceiling. Is this correct or should a vinyl coated
gypsum ceiling be used in this location?
2
Constructability Review Items
Design Development
Center for Design Innovation
November 21, 2007
Yes, a residential feel & use of this space.
OK, current pricing model is based on this clarification.
A502
1.
Building section 1H indicates the atrium roof section receiving a metal pan composite roof
system. Is this correct? Other drawings seem to indicate a metal roof deck with a TPO roof
system. Please clarify.
Let’s design to your suggestion: metal roof deck with membrane roof system.
OK, current pricing model is based on this clarification.
2.
What type of wood cladding is envisioned for exposed columns in lobby (room 104) and atrium
(room 123)?
Plywood hardwood veneer (not sure of the species just yet).
Current pricing model includes an allowance of $40,000 for this work.
3.
What type of ceiling system is envisioned under cross bridge walkways at lobby (room 104) and
atrium (room 123)?
Suspended painted gypsum wallboard.
OK, current pricing model is based on this clarification.
A503
1.
Building section F indicates a metal composite panel system serving the spine roof. Is this
correct or would a TPO roof not be best served here? Please clarify.
For aesthetic reasons, let’s provide a parapet condition with membrane roofing,
internal roof drains overflowing to roof below with emergency overflow scuppers. No
exposed guttering & downspouts.
OK, current pricing model is based on this clarification.
A600
1.
Would you be receptive to simplifying the slab on grade edge detail by utilizing a block edge form
in lieu of a turndown slab edge form at the steel framed portion of the building?
We can look @ that detail option (only if there is sufficient cost savings).
There is not a significant amount of cost savings; however this detail makes it easier
in the field to construct the building.
S2.01
1.
Is it possible to decrease the different number of column foundation sizes, thus making it easier
in the field to coordinate and construct?
We normally design footings for the applied loads, but can of course change to match
footings so long as we are not reducing them below what is necessary to support the
applied loads; per Steve Adams: City Structures
3
Constructability Review Items
Design Development
Center for Design Innovation
November 21, 2007
Understood, the intent is to reduce the different footing sizes from say +/- 20 to 8,
thus making it easier in the field to construct the building.
S2.02 / S2.03
1.
Please confirm that the atrium bridge structural support crossings will be steel framed with metal
deck in lieu of a suspended elevated concrete slab?
Yes, the atrium bridge is steel framed with composite deck; per Steve Adams: City
Structures
OK, current pricing model is based on this clarification.
General
1.
Are there any special sound attenuation requirements that need to be considered and estimated
for the project (i.e. ceiling separation requirements, etc?)
Yes. Special requirements for the following spaces: Auditorium 103, Sound Stage
125, Control Room 102, Control Room 213, and Sound Record 303.
Sound attenuating batts will be installed in all interior partition walls (typical).
Separation walls have sound batt insulation. An allowance of $12,000 for misc.
drywall / insulation has been included for above ceiling attenuation, if needed.
2.
What type of rails will be used in exit stair locations (i.e. aircraft cabling railings or steel
w/picket)?
Steel pipe railing
OK, current pricing model is based on this clarification.
3.
What type of interior frames will be used throughout the interior of the facility, specifically frames
designated with glass (i.e. hollow metal or aluminum)?
Aluminum frames with snap-on trim profiles in drywall applications (typical). Hollow
metal frames for masonry applications.
OK, current pricing model is based on using storefront frames, hollow metal at
masonry openings and hollow metal for general openings. Recommend bidding an
alternate for the use of the aluminum frames throughout.
4.
Could you please forward us a copy of the WSSU Telecommunications Infrastructure Design
Guidelines for our use and ready reference? This document is referenced in the DD spec outline.
Ron Vanard with WSSU will provide this document for your use.
OK
5.
Please confirm roof insulation thickness and R value. Drawings indicate a R30 assembly and
Appendix B, page 14 indicates a R20 assembly.
R30 assembly
OK, if energy calculations allow, a R20 assembly could yield some cost savings.
4
Constructability Review Items
Design Development
Center for Design Innovation
November 21, 2007
6.
We are assuming that the steel structure will be sloped in all areas in order to eliminate costly
tapered roof insulation. Is this correct?
Yes, that is correct.
OK, current pricing model is based on this clarification.
7.
Do you envision having any acoustical type doors? If yes, where and what type.
(2) Pairs of large acoustical folding doors in Sound Stage 125; (1) standard acoustical
door in Sound Record 303
II. ADDITIONAL CONSTRUCTABILITY ITEMS
LA 2.00
1.
The project team may want to evaluate simplifying the courtyard and entrance area to reduce
the amount of dissimilar materials / systems.
C 2.00
1.
Need to confirm / note depth of existing water and sewer services which are under the section of
road to be demolished to accommodate the new construction.
2.
Would PVC SDR 35 Sewer Pipe be an acceptable alternative to cast iron sewer pipe serving the
exterior of the building?
3.
Please confirm utility exiting locations outside the building vs. the civil plan locations.
5