基于响应面法的桥塔预拉预顶施工控制方法

Pre-stretching and Pre-pushing Construction Method of Bridge Tower Based on Response Surface Method

目前解决斜拉桥桥塔悬臂施工中桥塔局部所受拉力过大的方法是采用预拉预顶施工,但是目前施工过程中对预拉预顶的施工控制方法还并不成熟。研究提出了一种基于响应面法的对桥塔预拉预顶施工控制方法。该方法能够实现施工过程中桥塔受力的最小化,从而可以实现对施工的准确控制。

Pre-stretching and pre-pushing construction method is the way to solve the problem that partial of tower structure has too much tensile stress during cantilever construction. However,the control method of pre-stretching and pre-pushing construction can ＇t mature in construction process. This paper puts forward pre-stretching and pre-pushing construction method of cable-stayed bridge tower based on response surface method which can minimize the stress of the tower during construction and realize accurate construction control.