铁道科学与工程学报2018，Vol.15Issue(5)：1134-1140,7.
客运专线32m箱梁现浇支架预压试验与分析
Test and analysis of supporting system for 32 m concrete box girder in passenger dedicated line
摘要
Abstract
At present, the supporting systems of 32 m cast-in-place concrete box girder of the passenger dedicated line in China were designed separately according to the actual situation due to there was no fixed structure form. In order to solve this problem, it is necessary to put forward a kind of supporting system which is adaptive, easy processing and economical. For a new type of cast-in-place supporting system applying in the practical engineering, the preloading test and finite element analysis are carried out. By the comparative analysis of the results, the p-δ curves and p-σ curves for the loading and unloading process of the cast-in-place supporting system are drew. The rationality of the supporting system is verified. The residual deformation value was obtained. Then the adjustment of camber value of supporting system is designed, and the improvement measures are put forward. Foundation has been laid for perfecting the supporting system structure and spreading its application.关键词
客运专线/32m箱梁/支架/荷载预压试验/有限元/预拱值Key words
passenger dedicated line/32 m box girder/supporting system/preloading test/finite element/camber value分类
交通工程引用本文复制引用
孙焕重,郑纬奇,盛兴旺..客运专线32m箱梁现浇支架预压试验与分析[J].铁道科学与工程学报,2018,15(5):1134-1140,7.基金项目
铁道部科技研究开发计划资助项目(2010G004-A) （2010G004-A）
