Positioning method for installation on steel box girder bridge: Fid-Bau Portal

Positioning method for installation on steel box girder bridge

YAN WANGHU / TIAN LIANMIN / ZHAO XIANG / ZHOU HUANYU / WEI XIAOLUE

The invention discloses a positioning method for installation on a steel box girder bridge. The method comprises the following steps that: after a steel box girder is tried and spliced on a jig frame, datum lines are arranged on two adjacent block bodies, and the datum lines positioned on the two block bodies are symmetrically arranged relative to a gap between the two block bodies; and one of the two adjacent block bodies provided with the datum line is transported to a construction site and fixed, the other one of the two adjacent block bodies is transported to the construction site, and the two block bodies are installed according to the datum line of the two block bodies. The positioning method for installation on the steel box girder bridge has the beneficial effects that the datum lines are arranged on the two adjacent block bodies which are subjected to trial splicing, mounting and positioning are carried out according to the datum lines on the two adjacent block bodies, each block body is quickly and accurately positioned on a construction site, and the effect of trial splicing of the steel box girder in a steel structure processing factory is achieved.

本发明公开了一种钢箱梁桥上安装用定位方法，包括以下步骤：钢箱梁在胎架上试拼完成后，在相邻的两块块体上均设置基准线，位于两块块体上的基准线关于两块块体之间的缝隙对称设置；将设置有基准线的相邻两块块体的其中一块运至施工现场并固定，将相邻两块块体的另外一块运至施工现场，并根据两块块体的基准线进行安装。本发明的有益效果为：本发明所述的钢箱梁桥上安装用定位方法，采取在试拼完成的相邻两块块体上设置基准线，根据相邻两块块体上的基准线进行安装定位，实现了在施工现场将每个块体进行快速准确的定位，达到钢箱梁在钢结构加工厂试拼的效果。

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