The Effects of Soil-Structure Interaction on Seismic Response of Steel Moment Resisting Frames

Document Type : Structural Earthquake Engineering

Authors

1 Graduate University of Advanced Technology, Kerman

2 Shahid Bahonar University, Kerman

3 Shahid Bahonar University of Kerman

Abstract

The prediction of the seismic behavior of structures during earthquake has always been an important concern for earthquake and structural engineers. In addition to earthquakes, the behavior of soil and its effects on seismic responses of structure, also known as Soil-Structure Interaction (SSI), make this problem more complicated. For this purpose, today, many investigations are focusing on soil role in seismic behavior of structures. In this study, the seismic behavior of steel structures with various heights under the SSI effect have been studied. For this purpose, three steel structures including 9, 15 and 20 story frames were modeled using Opensees. Besides, their seismic behaviors under different base conditions including fixed base and on three different types of soil (B, C and D) under 11 bedrock earthquakes were also investigated using the direct method. The responses in two terms including story shear and story drift were also investigated.

Keywords


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