【摘要】 中山市蝴蝶拱桥是由倾斜钢拱肋、曲线钢箱梁和倾斜吊杆组成的多元空间结构,受力行为复杂。为确保其受力的安全性与合理性,验证设计计算理论的可靠性,进行了1/10模型试验。简要介绍模型试验研究情况,建立空间板壳有限元模型对该模型桥梁进行理论分析,给出主要试验工况的实测数据,提出设计施工建议。更多还原

【Abstract】 A butterfly-shape arch bridge in Zhongshan City is a multi-element spatial structure composed of inclined steel arch ribs,curved steel box girder and inclined suspenders,and the structural behavior of the bridge is particularly complicated.To ensure the safety and rationality of the behavior of the bridge and also to verify the reliability of its design and calculation theories,the 1/10 scale model tests have been carried out.In this paper,the general situations of the model tests are outlined in brief,the spatial plate and shell finite element model is established to theoretically analyze the model bridge for the tests,the measurements of the tests under principal load cases are provided and corresponding proposals to the design and construction are made as well.更多还原