Q7.6: Can we place members to define the roof of a skybride? For e.g. we keep a skybridge at F=10. Then its roof would be at F=11. Can we place any members in the skybridge area (central 3×3 sq. in) of F=11 which will act as its roof?
A: No, If you use the area on the roof of the skybridge, you will use it for your rentable area. So you are not allowed to put any members on the top of the skybridge as the roof is not counted as a rentable area!
Q7.4: For an area of dimensions 3.67*2.75 (in) with only cross (X) floor element. Are these dimensions valid rentable area?
A: Refer to Figure 12 in the Design Guide, especially to the top left X bracing orientation for the floor rentable area. For an area to be counted as rentable area, a span from any point perpendicular to a beam bordering the opening has to be 2.5 inches or less.
Q7.5: Is there any restriction on how the sky bridges are connected to the towers? For example, does the skybridge have to be connected on the outside of the tower or can members of the bridge extend into the towers? Also, for the topmost skybridge since it must be between the top two floors, does that mean it should have 2 crosswalks between the towers (in floors n and n-1) or should it only have one?
A: There is no restriction on how to connect the sky bridges to other structural elements as long as you abide by the other rules mentioned in the “Design Guide”. The topmost skybridge has to have two crosswalks.
Q7.3: Can a curtain wall be used in the sky bridge? (For example gusset plates)
A: Curtain walls as non-structural elements should not be in the actual physical model but can be added in the architectural rendering. Furthermore, gusset plates are not curtain walls. Gusset plates are permitted but shall not be in contact with any wall members. A gusset plate shall be in contact with and glued to at […]
Q7.1:In plan view, do the skybridges need to be centered between the two towers, or can the skybridges be placed at top/bottom between the towers in plan view? i.e., in elevation view, can the skybridges be staggered from each other?
A: The skybridges need to be centered between the two towers, i.e., they cannot be staggered from each other. This is further clarified in the Design Guide, Section 4, Floor Requirements.