铁道科学与工程学报2017，Vol.14Issue(11)：2384-2389,6.
非对称外倾式钢拱桥原位拼装施工定位技术
In-situ assembling construction orientation technologies for extroversive and unsymmetrical steel arch bridges
摘要
Abstract
For locating the normal arch bridges, absolute errors of key points are usually taken as a criterion. However, this criterion will conceal the inclination angle error and affect the accuracy of construction stages and the final bridge. In order to avoid this problem, a FEM was established to analyze the construction stage and a new method was proposed, which takes axis position and declination control at the same time into consideration. With the advantages of reducing installation errors for rib and steel box girder, this method was tested on one real bridge, which is extroversive and unsymmetrical. The results show that the method is effective in reducing construction errors and providing construction reference for the extroversive arch bridges or similar projects.关键词
外倾式拱肋/定位方法/偏转误差/施工控制Key words
extroversive arch rib/orientation method/inclination angle error/construction control分类
交通工程引用本文复制引用
朱仕耀,颜全胜,贾布裕,余晓琳,杨铮..非对称外倾式钢拱桥原位拼装施工定位技术[J].铁道科学与工程学报,2017,14(11):2384-2389,6.基金项目
国家自然科学基金资助项目(51478193) （51478193）
中央高校基本科研业务费专项资金资助项目(2015ZM114) （2015ZM114）
中国博士后科学基金资助项目(2016M592490) （2016M592490）
