Given below are two statements: Statement I: “Wind speed” should be considered while designing tall buildings. Statement II: “Buildings” should be rigid in an earthquake high risk zone. In the light of the above statements, choose the correct answer from the options given below.
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Wind loads affect tall buildings, while earthquake-resistant buildings must be ductile—not rigid.
To determine the correct answer, let's analyze each statement individually and understand their nuances:
Statement I: "Wind speed" should be considered while designing tall buildings.
Analysis: Tall buildings are significantly influenced by wind forces. As the height of a building increases, it becomes more susceptible to wind loads, which can affect structural stability and occupant comfort.
Conclusion: This statement is true. Engineers and architects indeed consider wind speed when designing tall structures to ensure safety and resilience.
Statement II: "Buildings" should be rigid in an earthquake high risk zone.
Analysis: In earthquake-prone areas, buildings should be designed to withstand seismic activities. A building's rigidity can lead to greater forces being exerted on it during an earthquake, which may increase the risk of structural failure.
Conclusion: This statement is false. Buildings in earthquake zones should be flexible, allowing them to absorb and dissipate the energy from seismic waves rather than resisting it rigidly.
Evaluation of Options:
Both Statement I and Statement II are true: This is incorrect. While Statement I is true, Statement II is false.
Both Statement I and Statement II are false: This is incorrect because Statement I is true.
Statement I is true but Statement II is false: This is the correct option based on our analysis.
Statement I is false but Statement II is true: This is incorrect as both evaluations are reversed.
Therefore, the correct answer is: Statement I is true but Statement II is false.
