简支变结构连续梁桥施工工序分析  

A Study on Construction Orders of the Simply Supported-Continuous System

作　　者：麻文燕[1] 陈善勤 莫勇刚[1] 

机构地区：[1]重庆工程职业技术学院,重庆400037 [2]中交二航局二公司,重庆400042

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

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.

关 键 词：简支变连续 湿接头 临时支座 整体化层 负弯矩 

分 类 号：U448[建筑科学—桥梁与隧道工程]