刘家峡大桥钢桁加劲梁拼装技术

Assembly Technique of Steel Truss Stiffening Girder of Liujiaxia Bridge

刘家峡大桥主桥采用钢桁加劲梁和正交异性钢桥面板叠合结构,采用工厂制造杆件,运至施工现场组拼的施工方案,本桥的节段吊装重量大以及现场施工条件差增加了钢桁加劲梁拼装控制难度。本文介绍了该桥加劲梁组拼连接技术和质量控制。

The main bridge of Liujiaxia bridge uses composition structure of steel truss stiffening girder and orthotropic steel bridge deck,and uses construction schemes of members be made in factory,and on-site assembled. The large hoisting weight of the segment and bad construction condition add assembly control difficulty of steel truss stiffening girder. The authors introduce assembly connection technique and quality control of stiffening girder of the bridge.