Numerical Analysis of Reverse Dip-slip Fault Rupture on Steel Buildings

Document Type : Original Article

Authors

1 Faculty of Engineering, Tabari Institute of Higher Education, Babol, Iran

2 Department of Engineering, Tabari Institute of Higher Education, Babol, Iran

3 Assistant Professor, Faculty of Engineering, Tabari Institute of Higher Education, Babol, Iran

Abstract

In seismic events, rupture resulted from the earthquake causes two types of ground deformation, namely, the permanent pseudo-static deviations on fault and transient dynamic fluctuations away from fault. Fault rupture extends in soil through bedrock and makes various concerns for structures made by human. On this basis, we examined reverse fault effect on ground-level buildings using numerical analysis and ABAQUS finite-element software. In this regard, some types of buildings were placed on ground near to fault and fault route angle was examined in the presence and absence of building in two layers of soil with different densities. Finally, vertical deformation of ground, horizontal strain of ground, lateral displacement of building, and bending moment of structure were examined beneath fault effect. Results reveal that fault route angle depends on soil layer material, and horizontal strain resulted from fault effect on ground increases by placing building. However, vertical displacement of ground will decrease by placing overhead (building) and the highest part of fault effect will be on columns of first floor.

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