| 膜结构找形及张拉过程的统一数值模拟 |
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| 引用本文： | 王辉,方兴.膜结构找形及张拉过程的统一数值模拟[J].四川建筑科学研究,2010,36(1). |
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| 作者姓名： | 王辉 方兴 |
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| 作者单位： | 1. 北方工业大学建筑工程学院,北京,100144
2. 中国铁道科学研究院铁道科学技术研究发展中心,北京,100081 |
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| 基金项目： | 北方工业大学2008青年重点研究基金资助项目 |
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| 摘 要： | 膜结构的预张拉水平直接影响结构初始形态和力学性能,而一般找形分析无法将预应力的产生与施工过程对应起来。本文就这一问题提出了一种找形方法,通过对膜结构张拉过程的计算机模拟描述了膜结构中预应力的产生过程。在此过程中,可以逐时逐点跟踪结构中应力的变化,这一找形方法包含了张拉方案的确定、如何及时反馈结构内力分布的变化和结构变形的变化,通过这种方法可以给施工过程以有效指导,并对施工误差引起的应力分布误差进行估计。
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| 关 键 词： | 膜结构 张拉过程模拟 找形分析 非线性有限元法 |
Consolidated numerical simulation of membrane structure shape-finding and tension process |
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| WANG Hui,FANG Xing.Consolidated numerical simulation of membrane structure shape-finding and tension process[J].Building Science Research of Sichuan,2010,36(1). |
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| Authors: | WANG Hui FANG Xing |
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| Affiliation: | 1.College of Architecture;North China University of Technology;Beijing 100144;China;2.Railway Science and Technology Research and Development Center;China Academy of Railway Sciences;Beijing 100081;China |
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| Abstract: | The prestress affects the shape and mechanical property of the membrane structure.In general,the process of shape-finding can't simulate the process of construction.In this paper,a new shape-finding method has been offered to solve this problem.During the shape-finding process,the stress of any point in the structure during the construction can be attained.This process can also determine the construction method and give some guidance during the construction process.At the same time the error of the distribu... |
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| Keywords: | membrane structure shape-finding tension process non-linear FEM method |
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