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钱江四桥双层桥面梁拱组合桥——吊杆内力的多次调整及优化分析 被引量:6

Several Adjustments and Optimization Analysis of Suspender Intemal Force of Girder and Arch Composite Spans of the 4th Qiantangjiang River Double\|Deck Bridge
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摘要 建立了一种施工阶段结构状态变量,可以直接、正向地反映与成桥状态目标之间的关系。通过对状态目标的最优化处理,可以求得不同施工阶段结构内力合理的吊杆张拉力。介绍了钱江四桥85m跨双层桥面的梁拱组合桥施工控制中吊杆内力的多次调整及优化成果。 The variants of a kind of structural status at construction stages are established, which can directly and obversely reflect their relationship with the completed bridge status target. Through optimization of the status target, the reasonable suspender tension of the structure internal force at different construction stages can be obtained. In this paper, the results of several adjustments and optimization of the suspender internal force in the construction control of the 85-m span girder and arch composite spans of the 4th Qiantangjiang River Double-Deck Bridge are presented.
出处 《桥梁建设》 EI CSCD 北大核心 2003年第6期34-37,共4页 Bridge Construction
关键词 梁拱组合桥 组合结构 双层桥面 吊杆 内力 调整 分析 girder and arch composite span composite structure double deck suspender internal force adjustment analysis
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