A response spectrum is a graphical representation of the acceleration, velocity or displacement responses of a structure to a ground motion with a range of frequencies. It shows how the structure is likely to respond to an earthquake or any other ground motion at different frequencies, allowing engineers to design buildings and other structures that can withstand the potential seismic forces. The response spectrum is an essential tool in earthquake engineering, where it is necessary to ensure that a structure can resist different levels of seismicity that are likely to occur in a given region.
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