摘要
主梁后浇结构层与墩顶梁端湿接头浇筑顺序以及墩顶负弯矩预应力筋张拉顺序是简支变连续梁桥施工的关键工序。文中通过大型有限元软件,对实际工程主梁后浇结构层与墩顶梁端湿接头浇筑的先后顺序以及墩顶负弯矩预应力张拉的先后顺序,进行详细分析,对预应力混凝土简支变连续梁桥的结构受力、施工工序进行初步探讨,以期更好地为工程服务。
The constructing procedure of the monolithic layer and the wet joints of the girders and the orders of straining the pre-stress force are the key orders of the simply supported-continuous system. This paper studied the orders of the monolithic layer and the wet joints of the girders with practical project. And also it established limited element model to analysis the order of the wet joints of the girders and straining pre- stress force to the structure. Through the contrasting analysis, we can achieve an elementary discuss of mechanics and construction towards the pre-stress simply supported-continuous system to better serve the project.
出处
《交通科技与经济》
2010年第2期89-91,94,共4页
Technology & Economy in Areas of Communications
关键词
简支变连续
湿接头
临时支座
整体化层
负弯矩
simply supported-continuous system
wet slot support joint
temporary prop
united layer
pre-stress straining
