论文部分内容阅读
目前,顶进框架桥工作坑滑板设计基于经验,无法根据桥址、规模、施工条件进行针对性设计。为解决这些问题,将滑板简化为支承在弹性地基上的空间梁格,利用依托工程,系统研究滑板受力。在此基础上,对框架桥预制过程开展滑板参数敏感性分析,发现滑板受力最敏感参数为锚梁高度,同时建议在类似工程中加强桥位附近的地质勘察,确保计算结果符合实际情况。
At present, the top of the framework bridge work pit skateboard design based on experience, can not be based on the site, size, construction conditions targeted design. In order to solve these problems, the skateboard is simplified as the space beam supported on the elastic foundation, and the system is used to study the force of the skateboard. On this basis, the sensitivity analysis of the parameters of the skateboard is carried out on the prefabricated bridge. It is found that the most sensitive parameter of the skateboarding force is the height of the anchorage beam. Meanwhile, it is suggested that the geological survey near the bridge should be strengthened in similar projects so as to ensure the calculation results in line with the actual situation.