下承式栓接桁架桥制造技术研究  

Research on Manufacturing Technology of Through Bolted Truss Bridge

作　　者：文三进 WEN Sanjin(Shanghai Steel Structure Construction(Jiangsu)Co.,Ltd.,Shanghai 226116,China)

机构地区：[1]上海建工(江苏)钢结构有限公司,上海226116

出　　处：《建筑施工》2023年第11期2310-2313,共4页Building Construction

摘　　要：栓接桁架桥是钢结构桥梁加工中常见的结构形式,其加工的重点和难点集中在何时采取何种开孔方式完成螺栓孔的开设,并保证螺栓孔精度和相邻部件的穿孔率。通过研究不同结构件先孔法与后孔法相结合的开孔方式及钢制人行道板预制拼装技术,解决了开孔精度、螺栓穿孔率及钢制人行道板安装的难题。该技术在江陵路桁架桥上的应用,取得了较高的螺栓穿孔率,实现了人行道板工厂预制和现场快速化安装,大大缩短了安装周期,取得了预期效果。Bolted truss bridge is a common structural form in the processing of steel structure bridges,and the key and difficult points of its processing are focused on when and how to complete the opening of bolt holes,and to ensure the accuracy of bolt holes and the perforation rate of adjacent components.Through the research on the hole opening method of different structural parts combined with the Hole-first method and the hole-last method and the prefabrication technology of steel sidewalk slab,the problems of hole opening accuracy,bolt perforation rate and steel sidewalk slab installation are solved.The application of this technology in Jiangling Road Truss Bridge has achieved a higher bolt perforation rate,realized the factory prefabrication and on-site rapid installation of sidewalk slabs,greatly shortened the installation cycle,and achieved the desired effect.

关 键 词：栓接 桁架桥 先孔法与后孔法 穿孔率 人形走道 预制装配 

分 类 号：TU997[建筑科学—市政工程]