elastic response spectrum

An elastic response spectrum is a tool engineers use to predict how a structure will respond to various levels of ground shaking during an earthquake, assuming the structure behaves elastically (without permanent deformation). It shows the maximum acceleration a structure might experience at different shaking intensities, helping designers ensure buildings can withstand potential seismic forces without damage. Essentially, it provides a visual summary of how a structure could react to different earthquake strengths, guiding safety and stability considerations.