【摘要】 中山市中山一桥为特殊的空间组合钢拱桥,该桥造型新颖独特,传力途径不流畅,受力行为复杂.为检验该桥的安全性、验证设计计算理论的合理性,全面系统地把握该桥的受力行为,设计了该桥的试验模型.模型的几何相似比为1/10,以应力相似和刚度相似为原则.模型的加载测试内容按照原型桥梁设计荷载及使用内力来确定.通过模型试验可为该桥的设计、计算、施工提供科学依据.更多还原

【Abstract】 Zhongshan First Bridge, which is located in Zhongshan City, is an unusual type of three-dimensional combined arched bridge with beautiful and novel configuration, but the stress distribution of the bridge is very complicated. In order to justify the safety of the bridge and verify the rationality of analysis theory and understand the thorough mechanical behaviors of the bridge, test model of the bridge is designed. In terms of the analogous principle of stress and stiffness, geometrical scale of 1/10 is adopted. Based on the design load and internal force employed the content of load test is ascertained. Scientific method of design, calculation and construction is provided through model test.更多还原