大跨度钢斜拉桥施工误差调整方法研究

Study on Construction Error Adjustment Method of Long-span Steel Cable-stayed Bridge

针对斜拉桥施工中的线形、内力等施工误差,推导用最小二乘法对其进行调整的基本方程,提出考虑结构几何非线性的误差调整方法。结合某大跨度钢斜拉桥施工阶段的误差,给出其具体应用。

Long-span cable-stayed bridge is very popular in China. To improve the construction error of long-span cable-stayed bridge, such as configuration, internal force, the basic equations for error adjustment are deduced, using the least square method. And the construction error adjustment methods are put forward, considering the geometric non-linearity of the structure. Finally the least square method is used to adjust the construction error of a long-span steel cable-stayed bridge.