马鞍山长江公路大桥钢塔柱水平预拼装施工技术

THE CONSTRUCTION TECHNOLOGY OF LEVEL PRE-ASSEMBLY FOR STEEL TOWER OF MAANSHAN YANGTZE RIVER BRIDGE

通过介绍马鞍山长江公路大桥钢塔柱水平预拼装施工工艺流程,重点提出钢塔柱水平预拼装关键工艺和质量控制、检测方法等技术。这些技术的成功运用,较好地消除和解决钢塔柱制作累计误差;通过良好的水平预拼装效果,保证了桥位安装精度,取得显著的经济效益和社会效益,可为今后类似大型桥梁钢塔水平预拼装施工提供参考。

This paper gives a brief introduction to the construction procedure of level pre-assembly for the steel towers of Maanshan Yangtze River Bridge. It points out the key technologies such as process control, quality control and inspection methods for the level pre-assembly of steel towers. The successful application of these technologies eliminates the accumulated error of steel tower fabrication. The good effect of level pre-assembly guarantees the erection effect at site and achieves remarkable economic and social benefits, which provides references for level pre assembly construction for steel towers of similar large bridge in the future.