常山港特大桥钢桁梁安装施工技术及合龙精度控制

Installation and Construction Technology of Steel Girder and Closing Precision Control of Changshan'gang Super-Large Bridge

结合桥梁工程实例,阐述钢桁梁的结构特点,着重分析钢桁梁构件的安装工艺,明确安装工艺流程及构件组装、吊装、连接、检测等具体环节的作业要点,提出钢桁梁组拼纠偏措施。经过研究得出结论:该工程应用的钢桁梁安装施工技术可行,提高了钢桁梁的合龙精度,保证了施工质量。

Combined with the bridge engineering example,the paper expounds the structural characteristics of steel truss beam,emphatically analyzes the installation process of steel truss beam members,clarifies the installation process flow and the operation points of specific links such as component assembly,hoisting,connection and detection,and puts forward the corrective measures for steel truss beam assembly.Through research,it is concluded that the installation and construction technology of steel truss beam applied in the project is feasible,which improves the closure accuracy of steel truss beam and ensures the construction quality.