摘要
大型桥梁钢构件特别是高强螺栓连接的钢构件试拼装是制造厂生产必不可少的工序,为了取代传统的厂内实体拼装,提出了基于螺栓连接桥梁构件的虚拟预拼装步骤和方法,介绍了特征数据测量方法、模型建立,适用于钢桁梁复杂构件多面拼接的算法。该技术在沪通长江大桥非通航孔桥钢结构制造厂采用先进的激光跟踪测试系统进行测试试验,运用预拼装软件实现了复杂的钢桁梁制造误差分析、拼接误差分析,将可以取代桥梁厂内试装工作。
Trial assembling is an indispensable procedure for large bridge steel elements,especially for the high strength blot connected steel elements. To replace the traditional assembling method inside the factory,this paper puts forward the virtual assembly procedures and method based on the blot connected bridge,and introduces the typical data measuring method and model establishing,which can be used for complicated elements multi-surface assembly of the steel truss bridge calculation. This technique was tested in Hutong Yangtze River Bridge non-navigation span steel structure factory by the means of advanced laser tracking test system. The virtual trial assembling software realized the complicated steel truss girder manufacturing deviation analysis and assembling deviation analysis. The bridge trial assembling inside the factory can be replaced by this method.
出处
《施工技术》
CAS
2018年第5期48-50,共3页
Construction Technology
基金
中交集团科技研发项目(2014-ZJKJ-07)
关键词
桥梁工程
钢构件
虚拟预拼装
钢桁梁
螺栓连接
数字化测量
施工技术
bridges
steel members
virtual assembly
steel truss girder
bolt connection
digital measurement
construction
