Analysis of the Effect of Lateral Collision on the Seismic Response of Bridges under Fault Misalignment

Mutual dislocation of seismogenic faults during strong earthquakes will result in a large relative displacement on both sides the fault. It is great significance to explore influence collision effect between main beam and transverse shear key seismic response bridge under fault dislocation. In this paper, series cross-fault ground motions with different permanent displacements are artificially synthesized using hybrid simulation method. Based contact element theory, Kelvin–Voigt model used simulate lateral effect. The continuous girder compared from two aspects position degree. On basis, analysis parameters carried out aim reasonably regulating structure. results show that, near-fault bridge, stronger. amplification bending moment central pier limitation bearing five times times, respectively, for bridge. When has dislocation, weak point structural damage failure bottom residual torsion after earthquake. conventional bridges aggravate demand limit their too much. Therefore, by appropriately reducing stiffness increasing initial gap, internal force distribution structure can be more reasonable. study paper reference keys.