拱塔斜拉桥合理索力优化计算分析  

Optimization Calculation Analysis of Reasonable Force of Arch Tower Cable-stayed Bridge

作　　者：覃丹 廖宸锋 李良 

机构地区：[1]广西壮族自治区交通规划勘察设计研究院,广西南宁530029

出　　处：《西部交通科技》2012年第8期64-67,共4页Western China Communications Science & Technology

摘　　要：文章以某预应力混凝土拱塔斜拉桥为研究对象,通过建立全桥空间有限元模型,利用弯曲能量最小法、影响矩阵法、综合法以及正装迭代改进法对该桥成桥使用阶段和施工阶段的拉索索力进行了优化计算分析。结果表明,采用综合法和正装迭代改进法能有效确定桥梁成桥使用阶段和施工阶段的合理拉索索力。Taking an arch tower cable-stayed bridge in pre-stressed concrete as a research object,through establishing spatial finite element of the whole bridge,using minimum bend- ing energy method, influence matrix method, comprehensive method and forward iteration improvement method,the article made optimization calculation analysis of the cable force at the stages of application and construction.It is proved that with comprehensive method and forward iteration improvement method,the reasonable cable force of the bridge at the stag- es of application and construction.

关 键 词：拱塔斜拉桥 合理索力 优化计算 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]