大型斜拉桥施工过程中吊架的优化分析

摘要

This paper takes Beipanjiang bridge as example,which is now under construction. The paper,according to the suspension bracket used in the construction,builds a truss model based on structural mechanics principle and revises the design of its structure forms on the basis of structural mechanics analysis and builds a kind of more optimized suspension bracket model. Analysis of examples shows that the optimized sus-pension bracket is feasible in practical engineering.%依托在建的北盘江特大桥现场施工工程背景，针对施工中所用到的吊架，基于结构力学原理建立了桁架模型，并通过结构力学分析，对结构的形式进行了改进设计，提出了一种较为优化的吊架模型，算例分析表明，所优化的吊架在实际工程中是可行的。