论文部分内容阅读
漳州九龙江大桥主桥为40+67+158+67+40m预应力混凝土连续梁-钢管混凝土拱协作体系桥,预应力混凝土连续梁承受自身恒载,钢管混凝土拱协作承担二期荷载、混凝土收缩徐变及活载。主梁采用C55混凝土单箱双室截面箱梁,三向预应力,拱肋为钢管混凝土空间结构。主墩采用厚度为4m的矩形实体桥墩,摩擦桩基础。采用空间有限元软件对该桥进行了静、动力分析,分析结果表明该桥在施工及运营阶段的刚度、强度均满足规范要求,且具有良好的抗震性能。
The main bridge of Zhangzhou Jiulongjiang Bridge is 40 + 67 + 158 + 67 + 40m prestressed concrete continuous beam-CFST arch bridge. The prestressed concrete continuous beam is under constant self-loading, and the concrete-filled steel tube arch is responsible for the second load. Concrete Shrinkage and live load. The main girder adopts C55 concrete single-box double-chamber box girder with three-way prestress, and the arch rib is a steel-pipe concrete space structure. The main pier with a thickness of 4m rectangular solid pier, friction pile foundation. The static and dynamic analysis of the bridge is carried out by means of space finite element software. The analysis results show that the rigidity and strength of the bridge meet the requirements of the code during construction and operation, and have good seismic performance.