Difference between dynamic and equivalent static method of earthquake design and analysis of multi storey building

Question

Accepted Answer

Dynamic method considers time history of earthquake while equivalent static method simplifies earthquake forces into equivalent static forces.

Dynamic method analyzes building response to actual time history of earthquake ground motion.
Equivalent static method simplifies earthquake forces into equivalent static forces based on simplified assumptions.
Dynamic method is more accurate but computationally intensive, while equivalent static method is simpler and quicker to use.
Dynamic method is recommended for high-rise buildings with complex geometries, while equivalent static method is suitable for simpler structures.
Examples of dynamic methods include response spectrum analysis and time history analysis, while equivalent static method includes static equivalent lateral force method.

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