GATE 2008
Q. Shells and Space Frames are examples of
(A) modular Bulk- active and Form-active systems respectively.
(B) modular Surface- active and Vector-active systems respectively.
(C) modular Vector- active and Form-active systems respectively.
(D) modular Bulk- active and Surface-active systems respectively.
Answer: (B) modular Surface- active and Vector-active systems respectively.
o Form active- Cable structures, Tent structures, Pneumatic structures, Arch structures.
o Vector active- Flat trusses, Curved trusses, Transmitted flat trusses, space trusses.
o Section active- Beam, Rigid frame, beam grid, slab structure
o Surface active- Plate structures, folded plate, shell structures.
source: GATE Arch/Planning by B K Das
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