Seismic conceptual design and analysis method of Bridges crossing active fault

Abstract

For bridges crossing active fault, combined with relevant standards and recent research results, the seismic conceptual design such as bridge axis trend planning, bridge type selection, fault trace avoidance distance of substructure, fault span and lap length are systematically summarized; some suggestions on seismic analysis methods such as the value of horizontal and vertical acceleration response spectrum, the generation of ground motion acceleration and displacement time history, and the input mode of time history are put forward.