Question

World's tallest building ‘Burj Khalifa' is based on which structural system ?

• A. Buttressed core
• B. Tube in tube
• C. Shell structure
• D. Shear truss

Hint:

Burj Khalifa facts:
• Location → Dubai
• Architect → Adrian Smith
• Structural Engineer → Bill Baker
• Structural system → Buttressed core The buttressed core efficiently resists lateral wind forces in supertall buildings.

Answer 1

The Correct Option is A

Concept: Tall buildings require advanced structural systems to resist:
• Gravity loads
• Wind loads
• Lateral forces The Burj Khalifa in Dubai uses a highly efficient structural system called the Buttressed Core System.

Step 1: Analyze Buttressed core system.
The Burj Khalifa was designed using a reinforced concrete buttressed core structural system developed by engineer Bill Baker. Features include:
• Central hexagonal core
• Three wing buttresses
• High resistance to wind and torsion Hence, option A is correct.

Step 2: Analyze Tube in tube system.
Tube structural systems are used in many skyscrapers, but Burj Khalifa specifically uses the buttressed core system. Hence, option B is incorrect.

Step 3: Analyze Shell structure.
Shell structures are thin curved surfaces used for roofs and domes, not the primary system of Burj Khalifa. Hence, option C is incorrect.

Step 4: Analyze Shear truss system.
Shear truss systems are used in some high-rise structures but are not the principal structural concept of Burj Khalifa. Hence, option D is incorrect.

Step 5: Choose the correct option.
Burj Khalifa is based on the buttressed core structural system. Therefore, the correct answer is: \[ {\text{(A) Buttressed core}} \]