大跨径多跨连续钢桁梁桥悬臂架设施工技术研究  

Research on Construction Technology of Cantilever Frame of Long-span and Multi-span Continuous Steel Truss Bridge

作　　者：李岩 LI Yan(Steel Structure Branch of China Railway Sixth Bureau Group Construction and Installation Engineering Co.,Ltd.,Taiyuan 030003,China)

机构地区：[1]中铁六局建安公司钢结构分公司,太原030003

出　　处：《价值工程》2020年第13期171-174,共4页Value Engineering

摘　　要：近年来随着国内基建领域的蓬勃发展,钢结构桥梁以其以其优良的跨跃性能在跨跃江河、山川峡谷、既有设施等领域得到广泛的应用和长足的发展;越来越多的超重、超大型钢结构构件在施工环境局限性大的现场得以架设;本文以大跨径多跨连续钢桁梁桥悬臂架设安装施工为研究对象,在钢结构桥梁现场安装过程中,通过应用Tekla、Bentley等制图软件建立多向钢桁梁拼装的三维虚拟模型,进行科学碰撞。并结合Midas等结构受力软件进行仿真结构受力验算,减少大临设施搭建,并确定合理的钢梁架设安装顺序,确保安全、质量,提高钢梁安装工效。With the vigorous development of domestic infrastructure construction in recent years,steel structure bridges have been widely used and developed in the fields of spanning rivers,mountains,valleys and existing facilities due to their excellent spanning performance;Many overweight and super-large steel structural members can be erected at the site where the construction environment is limited.This article takes the large-span and multi-span continuous steel truss bridge cantilever erection and installation as the research object.During the on-site installation of steel structure bridges,a three-dimensional virtual model of multi-directional steel truss girder assembly is established by applying Tekla,Bentley and other drawing software to carry out scientific collision.Combined with Midas and other structural stress software,it carries out simulation structural stress checking to reduce the construction of large temporary facilities,determine a reasonable steel beam erection and installation sequence,ensure safety and quality and improve the efficiency of steel beam installation.

关 键 词：安全 高效 BIM技术 MIDAS技术 对称安装 杠杆平衡 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]