成都新建五岔子大桥梁墩节点优化设计

摘要:

基于全球方案征集结果的成都新建五岔子大桥造型新颖,其结构设计时一方面外形还原度要求很高,另一方面钢构件连接关系复杂、异型。采用ANSYS建立了两个局部有限元方案模型,对比分析了主桥第2联梁墩节点的应力分布,结果显示增加次腹板可以很好地解决本桥上下结构之间均匀、可靠传力的问题。

Abstract:

Based on the results of global scheme solicitation, the new wuchazi bridge in Chengdu has a novel shape. On the one hand, structure design should revivify the scheme faithfully, but on the other hand, the connection relationship of steel members is complex and irregular. Two local finite element models are established by ANSYS. The stress distribution of beam-pier joint of the main bridge is compared and analyzed. The results show that adding secondary webs can solve the problem of uniform and reliable force transfer between the upper and lower structures of the bridge.