| 无应力状态控制法综述 |
| |
| 引用本文： | 黄晓航,高宗余.无应力状态控制法综述[J].桥梁建设,2010(1). |
| |
| 作者姓名： | 黄晓航 高宗余 |
| |
| 作者单位： | 1. 中铁大桥局集团有限公司,湖北,武汉,430050
2. 中铁大桥勘测设计院有限公司,湖北,武汉,430050 |
| |
| 摘 要： | 无应力状态控制法是解决桥梁结构分阶段施工的理论方法。通过建立分阶段施工结构的力学平衡方程,从理论上阐明桥梁构件单元的无应力状态量是影响分阶段施工结构内力和位移的本质因素,并得出无应力状态控制法原理:在结构外荷载、结构体系、支承边界条件、单元无应力长度、无应力曲率一定的情况下,其对应的结构内力和位移是惟一的,与结构的形成过程无关。采用无应力状态控制法,在斜拉桥安装计算时可由成桥最终状态直接解算施工中间状态;可分析杆件工厂制造长度偏差对桥梁结构内力和线形的影响;可实现调索与其他工序并行作业等运用传统方法解决较困难或无法解决的工程问题。
|
| 关 键 词： | 桥梁工程 分阶段施工 无应力状态量 安装计算 施工监控 原理 应用 |
A Summarized Account of Unstressed State Control Method |
| |
| HUANG Xiao-hang,GAO Zong-yu.A Summarized Account of Unstressed State Control Method[J].Bridge Construction,2010(1). |
| |
| Authors: | HUANG Xiao-hang GAO Zong-yu |
| |
| Institution: | HUANG+Xiao-hang1,GAO+Zong-yu2(1.China+Zhongtie+Major+Bridge+Engineering+Group+Co.,Ltd.,Wuhan+430050,China,2.ChinaZhongtie+Major+Bridge+Reconnaissance+%26+Design+Institute+Co.,China) |
| |
| Abstract: | The unstressed state control method is a theoretic method for bridge structure construction in stages.By establishing the mechanical equilibrium equations for the structure,it is theoretically explained that the unstressed state amount of the element of the structure is the essential factor that has influence on the internal force and displacement of the structure constructed in stages and the principle of the unstressed state control is obtained,that is,under the certain conditions of the external load,str... |
| |
| Keywords: | bridge engineering construction in stages unstressed state amount calculation for erection construction monitoring and control principle application |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
