大跨度钢混组合连续梁抗震性能及减隔震体系研究

Research on Seismic Performance and Damping System of Large-span Steel-concrete Composite Continuous Girder

摘要:

以济南市凤凰路主跨245 m的组合钢箱梁桥为工程背景，采用全桥空间动力分析模型，对桥梁进行动力特性分析。在此基础上进行常规体系地震反应谱、时程分析，根据验算结果进行纵、横向减震体系优化设计，给出全桥减隔震体系力学参数，供相关桥梁参考。

Abstract:

Taking the composite steel box girder bridge with the main span of 245 m in Fenghuang Road of Jinan City as the engineering background, the dynamic characteristics of the bridge are analyzed by using the spatial dynamic analysis model of the whole bridge. On this basis, the seismic response spectrum and time-history analysis of the conventional system are conducted. According to the results of checking calculation, the optimal design of vertical and lateral damping system is carried out. The mechanical parameters of the whole bridge damping system are given for reference of related bridges.