Parameter analysis of a long span hangar isolated with 3-dimensional seismic isolation bearing

Based on the dynamical characteristics and seismic response properties of the long span hangar with space frame,a 3-dimensional seismic isolation tactics was proposed firstly.Meanwhile,a new type of bearing was developed.According to the experiment result of the bearing,its theoretical model was supposed,and the main parameters related to seismic isolation of which was examined on detail as well.It is shown that the bearing shares good performance.In addition,a rational plan incorporated with 3-dimensional seismic isolation bearing of the hangar was selected,and the simulated analysis of the isolated structure was carried out lastly.It is shown that the 3-dimensional seismic isolation is an effective means to mitigate the seismic response for the long span hangar with space frame.