What is the Difference between Equivalent Static method and Response spectrum method?

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Accepted Answer

Equivalent Static method uses a single static load to represent dynamic effects, while Response Spectrum method uses a spectrum of loads based on dynamic characteristics.

Equivalent Static method simplifies dynamic analysis by using a single static load to represent the effects of all dynamic loads.
Response Spectrum method considers the dynamic characteristics of the structure and applies a spectrum of loads to determine the maximum response.
Equivalent Static method is commonly used for simple structures with regular geometry and uniform mass distribution.
Response Spectrum method is more accurate for complex structures with irregular geometry and varying mass distribution.
Example: Equivalent Static method is often used for low-rise buildings, while Response Spectrum method is preferred for high-rise buildings in seismic zones.

What is the Difference between Equivalent Static method and Response spectrum method?

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