【摘 要】
：
以上海市中环线工程为工程背景,讨论了宽跨比较大的弧形底单箱多室箱梁在横向预应力作用下的 受力特性。建立空间有限元模型,分析横向预应力的空间效应,分别讨论了横梁和顶
【机 构】
：
同济大学桥梁工程系 上海市200092
论文部分内容阅读
以上海市中环线工程为工程背景,讨论了宽跨比较大的弧形底单箱多室箱梁在横向预应力作用下的 受力特性。建立空间有限元模型,分析横向预应力的空间效应,分别讨论了横梁和顶板中横向预应力对结构的影 响,最后得出箱梁横向应力沿结构纵向和横向的分布规律,供设计人员参考。
Taking the Central Central Link Project in Shanghai as the engineering background, the force characteristics of multi-room box girder with large width and width under single-box with mid-span under lateral prestressing are discussed. The spatial finite element model is established to analyze the spatial effect of transverse prestress. The influence of transverse prestress on the structure of beams and roofs is discussed respectively. Finally, the distribution of lateral stress of box girders along the structure is obtained, which is for reference of designers.
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