宽幅大跨预应力混凝土波形钢腹板组合箱梁桥抗震性能研究

SeismicBehavior of Wide Width and Long Span Prestressed Concrete Composite Box Girder Bridges with Corrugated Steel Webs

本文以国内已建成最大跨度的预应力混凝土波形钢腹板组合连续箱梁桥—港珠澳大桥连接线工程前山河特大桥为工程实例,根据相关抗震理论和抗震规范,基于有限元技术和动态时程分析法,对大桥动力特性、地震响应开展综合评估,结果表明前山河特大桥抗震性能良好,为宽幅大跨预应力混凝土波形钢腹板组合箱梁桥的抗震设计提供参考和借鉴。

In this paper,the longest span of prestressed concrete corrugated steel web composite continuous box girder bridge in China named Qianshan River Bridge in Hong Kong-Zhuhai-Macao Bridge Connecting line project is taken as an example.Based on relevant seismic theories and codes,the seismic response of the bridge dynamic characteristics is evaluated comprehensively based on finite element technique and dynamic time-history analysis method.The results show that the seismic performance of Qianshan River Bridge is good,which provides reference for the seismic design of the wide width and long span prestressed concrete corrugated steel web composite box girder bridge.