The Properties of Floor Response Spectra Subjected to Earthquake Ground Motions

The ground response spectra have become a standard tool in the specification of earthquakes for structural design purpose. Similarly, building floor response spectra are required for design of important equipment and other secondary systems, such as piping, etc., which are supported on building floors. As the design of such systems depends on the response of the floors on which they rest, it is important to comprehend the floor response characteristics. The dynamic behavior of a single degree-of-freedom equipment mounted on a primary structures subjected to earthquake ground motions is studied numerically in this paper.