工地焊接

工地焊接制造厚钢板梁

Steel Thick Plate Girder Welded and Fabricated on Site Building Site

大跨度钢桥中，由于梁段数量多，梁段与梁段对接焊缝收缩量难以控制，其变化量积累起来数量大，所以梁段成桥工地焊接对其梁段总长的影响较大。

The segments are numerous for large span steel box girder bridge , it is difficult to control the contracted quantity of butt weld that accumulates largely .

详细介绍大型管桥钢管工厂内焊接、工地焊接及现场吊装的过程，总结大直径钢管的制作安装经验。

The procedure of steel tube welding of the large conduit bridge in factory , welding and assemblage in the field are introduced . The production and installation experiences of big diameter steel tubes are summarized .

福州市闽江二桥拓宽工程上部为40mm和32mm厚钢板组成的钢板梁，由工地现场焊接制造。

The widened superstructure of the Second Minjiang River Bridge in Fuzhou is of steel plate girder formed with steel plates 40 mm and 32 mm thick that are welded and fabricated on site .

其中在24m+32m+24m连续梁的型钢板梁中首次采用了工地全断面焊接技术。

It is the first time for the railway to use the technology of the whole section welding on I type of steel beam , which belongs to the middle span of 24 m + 32 m + 24 m of composite bridge .