斜框构桥顶进施工的顶镐布置分析

Arrangement analysis on jacking construction for oblique frame-shaped bridge

通过对斜交框构桥与正交框构桥顶进施工的对比,找出两者的不同点,对斜交框构桥顶进时的转动问题进行了受力分析,又对千斤顶布置的三种方式进行了对比分析,并结合工程实例,通过理论计算,解决了斜交框构斜向顶进时的转动问题,使框构桥正确就位。

Through the comparison between the construction technology oblique-crossing frame-shaped bridge and normal-crossing frame-shaped bridge,this paper finds out their differences,carries out force analysis on the rotation in the course of oblique frame-shaped bridge jacking and the contrastive analysis on three ways of arranging the jacking equipments,and combined with project examples,it has solved the rotating problem concerning the jacking of the oblique-crossing frame by theoretical calculation,putting the frame-shaped bridge in the right place.