Which of the following buildings employ bundled structural tubular framing system?
I) World Trade Center, NY
II)Pompidou Center, Paris
III) Sears Tower, Chicago
IV) John Hancock Bldg, Chicago
V) Transamerica Pyramid, San Fran
A) I and III
B) I, II, III, IV
C) I, III, IV
D) I, II, III, IV, and V
- A) I and III - World Trade Center and Sears Tower
- Perimeter walls from a huge hollow tube cantilevering out of the ground to resist wind and seismic forces. Other examples are moment resisting frames.