| 钢结构施工力学状态非线性分析方法 | |
| 郭彦林 ; 刘学武 ; GUO Yan-lin ; LIU Xue-wu | |
| 2010-05-13 ; 2010-05-13 | |
| 关键词 | 钢结构 施工力学 结构时变 单元生死技术 分步建模技术 steel structure construction mechanics time-dependent structure element birth and death technology step-by-step model technology TU391 |
| 其他题名 | STATE NONLINEAR FINITE ELEMENT METHOD FOR CONSTRUCTION MECHANICS ANALYSIS OF STEEL STRUCTURES |
| 中文摘要 | 施工力学问题分析的难点在于结构时变、材料时变和边界时变的模拟。该文剖析了单元生死技术模拟施工过程的基本原理,从数学和物理上揭示了单元"杀死"、"漂移"和"激活"的机理。探讨了施工过程模拟的分步建模技术。对单元生死技术和分步建模技术的计算模型和精度进行了对比研究。基于经典梁单元,采用FORTRAN语言编制了这两种算法下的分析程序。算例分析表明:两种方法的理论及所编制程序正确,是施工力学问题求解的有效方法。; There are several key mechanical problems in simulating construction process of structures, such as how to simulate time-variation structures and boundary conditions, and how to take time-dependent material into consideration. This paper reveals the principles of element's 'death', 'floating' and 'birth' for element birth and death technology mathematically and physically. Another simulation method, namely step-by-step model technology, is also discussed. Using the classic beam element, this paper develops analytic models for construction simulation by means of FORTRAN programming. Moreover, the methods using the above two technologies are compared in this paper. The results demonstrate that both methods can be used to predict the development and variation of internal forces and deformation of steel structures during construction. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/32329]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 郭彦林,刘学武,GUO Yan-lin,等. 钢结构施工力学状态非线性分析方法[J],2010, 2010. |
| APA | 郭彦林,刘学武,GUO Yan-lin,&LIU Xue-wu.(2010).钢结构施工力学状态非线性分析方法.. |
| MLA | 郭彦林,et al."钢结构施工力学状态非线性分析方法".(2010). |
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