长沙理工大学学报（自然科学版）2018，Vol.15Issue(2)：51-57,7.
空腹式刚架拱桥支架卸落的合理施工程序与方法
Reasonable construction procedure and method of removing open spandrel rigid-framed arch bridge's scaffolds
摘要
Abstract
At present,with less research on the removing process of open spandrel rigid-framed arch bridge's scaffolds,a reinforced concrete open spandrel rigid-framed arch bridge is selected as the case study,the process of removing scaffolds is simulated by using the fi-nite element software Midas/Civil.Considering the stress and deformation of the structure in the process of removing scaffolds,it is obtained according to the calculation and analysis of multiple schemes that different process of removing scaffolds has limited influence on the stress and displacement of each control section after completion of removing scaffolds.The upper edge stress of the structure changes greatly during the removing process of the rigid area and the arch leg's scaffolds,the stress and structural displacement of the lower edge of the structure change greatly during the removing process of the arch leg's scaffolds.There is little difference between the symmetrical removing scaffolds and one side to the other side, but the time needed for the symmetrical removing scaffolds is short.Compared with the symmetrical area by area,the symmetrical span by span removing scaffolds has the advanta-ges of continuous construction,and it is recommended to adopt.关键词
空腹式刚架拱桥/支架现浇/合理落架过程/对称落架/变形/有限元Key words
open spandrel rigid-framed arch bridge/cast-in-place/reasonable removing scaf-folds process/symmetric removing scaffolds/deformation/finite element分类
交通工程引用本文复制引用
张玉平,王波,李传习..空腹式刚架拱桥支架卸落的合理施工程序与方法[J].长沙理工大学学报（自然科学版）,2018,15(2):51-57,7.基金项目
科技部"973"计划项目(2015CB057702) （2015CB057702）
国家自然科学基金资助项目(51378080) （51378080）
湖南省教育厅创新平台资助项目(16K005) （16K005）
