Question

Match the buildings in Group I with their corresponding structural systems in Group II. 

• A. P – 5, Q – 3, R – 4, S – 1
• B. P – 3, Q – 5, R – 1, S – 2
• C. P – 5, Q – 4, R – 1, S – 2
• D. P – 5, Q – 1, R – 4, S – 2

Hint:

Famous skyscrapers often use complex tube systems (like Tube in Tube or Bundled Tubes) to improve stability against wind and seismic loads.

Answer 1

The Correct Option is D

Let's review the corresponding structural systems for each building:

Step 1: Empire State Building (P).
The Empire State Building uses a Shear Truss system, where a rigid frame is used to resist horizontal loads. Therefore, it corresponds to option 5, Shear Truss.

Step 2: John Hancock Center (Q).
The John Hancock Center uses a Trusses Tube structure, consisting of a trussed frame around the building. This corresponds to option 1, Trusses Tube.

Step 3: Taipei 101 (R).
Taipei 101 employs a Tube in Tube structural system, where an inner and outer tube work together to resist lateral forces. Therefore, it corresponds to option 3, Tube in Tube.

Step 4: Sears Tower (S).
The Sears Tower (now Willis Tower) uses an Outrigger Frame system, which enhances the lateral stability by using outrigger beams. This corresponds to option 4, Outrigger Frame.
Therefore, the correct matching is: P – 5 (Shear Truss), Q – 1 (Trusses Tube), R – 3 (Tube in Tube), S – 2 (Outrigger Frame).

Final Answer: (D)