系杆拱桥更换吊杆施工控制安全性研究

Research and Analysis of Suspender Replacement of Tied Arch Bidge

在拱桥吊杆更换施工过程中,如何对各吊杆进行合理的张拉和控制,直接关系到施工的质量和安全,以及成桥状态下结构的内力和线形。基于对某桥临时吊杆分级张拉工况的计算分析,提出了合理的施工控制指标。本桥施工控制方法较传统控制方法能极大提高现场施工效率,更符合当前节能环保的施工要求。

In the construction process of replacing the suspender of arch bridge,how to tension and control ofsuspender is directly related to the construction quality and safety,as well as the internal force and linear of the state of completed bridge.Based on the calculation and analysis of the grading tension condition of the temporary suspender of a bridge,the reasonable construction control index is put forward.