空间组合拱桥模型试验研究——模型桥梁分析及原型桥梁的设计施工建议

Experimental study of three-dimensional combined arched bridge -the comparison of the measured results and the calculated results of the model bridge and the guiding suggestions about the design and construction of the prototype bridge

在文献[1,2]基础上,就中山一桥模型试验测试结果与理论计算结果进行了比较,根据试验结果提出了 设计施工建议.使用荷载试验表明:原型桥梁各受力构件截面拟定得比较合理,刚度比较匹配,内力分配比较 均匀,且有足够的安全贮备.模型桥梁的理论计算结果与实测结果的比较表明:实测值与理论计算值吻合较好.

On the basis of the former paper, the experimental results of model of Zhongshan First Bridge are compared with the theoretical results. The suggestions for design and construction are presented according to the experimental results . The service loading test indicates that: the sectons of each components of the prototype bridge have been reasonably laid out, so their stiffness matches each other and has uniform distributions of the internal force and enough safety capacity. By comparison of the theoretical results with the experimental results of the model bridge, it indicates that the values of the two kinds of result are well coincident, which proves that the theoretical model of the bridge is practicable and the experimental values are credible.