斜拉桥车桥耦合振动对冲击系数的影响分析

摘要

通过车桥耦合振动分析,探讨路面不平整度、车辆行驶速度对双层斜拉桥位移和车辆冲击系数的影响,同时按照JTG D60—2004《公路桥涵设计通用规范》计算出该类双层斜拉桥的冲击系数,并对其合理性予以验证.%Based on analysis for coupling vibration of vehicles and bridges, this paper probes into influences of roughness of pavement and driving speed of vehicles on displacement of double-layer cable-stayed bridges and impact coefficient of vehicles, and meanwhile calculates impact coefficient of such double-layer cable-stayed bridges in accordance with JTG D60-2004"General Specification for Design of Highway Bridges and Culverts" and verifies its reasonability.