Study on Damage Law of Multistory and High-rise Steel Frame Structures under Strong Earthquake

Abstract

In order to study the seismic performance of steel frame structures of multistory and high-rise buildings under strong earthquake, six and nine story steel frame structure models are established. In this paper, based on the peak acceleration of frequent earthquakes with 8 degree (0.2g) seismic effect and the finite element calculation of artificial seismic wave, the damage law of multi-storey and high-rise steel frame structures is studied under strong earthquakes, such as Taiwan CHICHI earthquake and the MENDOCINO earthquake in the United States. The results suggest that: under the strong earthquake, the inter-storey drift angle is obviously concentrated when the cross-section size of column and beam changes, so that the rational control of the inter-storey drift angle is conducive to reducing the concentration of structural damage.