铁道科学与工程学报2017，Vol.14Issue(5)：1004-1010,7.
曲线部分斜拉桥成桥阶段模型试验研究
Model test on curved extra-dosed bridge under live loading
摘要
Abstract
In order to study the mechanical characteristics of the curved extra-dosed bridge, a model was made with the ratio of 1/40 to the in-situ bridge based on the similarity theory. In this paper, some key sections was tested under their most unfavorable conditions equivalent to lane loading in the model bridge such as the mid span , the top tower, the cable and side bearing support. Through comparing the experimental data, the model calculation data and real bridge model calculation data, it shows that, the mid-span girder has sufficient compressive stress, the cable meets the safety factor of 1.67, and the bearing separation will not occur in the respective corresponding most unfavorable load. And the deviation of the main tower is basically the same under symmetrical load, which shows that the system is symmetric. The test data are consistent with theoretical result, and the model can accurately reflect the characteristics of the real bridge, which verifies the structure calculation theory.关键词
部分斜拉桥/模型试验/成桥阶段/设计荷载/车道荷载Key words
extra-dosed bridge/model test/completed bridge stage/design load/lane load分类
交通工程引用本文复制引用
彭晶蓉,贺拴海,王凌波..曲线部分斜拉桥成桥阶段模型试验研究[J].铁道科学与工程学报,2017,14(5):1004-1010,7.基金项目
广东省交通运输厅科技资助项目(2014-02-017) （2014-02-017）
