| 空间网架结构在地震作用下的损伤累积分析 |
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| 引用本文： | 董宝,曹文衔.空间网架结构在地震作用下的损伤累积分析[J].上海力学,1996,17(2):127-131. |
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| 作者姓名： | 董宝 曹文衔 |
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| 作者单位： | 同济大学
(董宝，曹文衔)，同济大学(陈学潮) |
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| 摘 要： | 本文从连续介质损伤力学的基础理论出发，提出了弹性模量等价性假设，并在这一假设的基础上建立了考虑损伤累积效应的空间网架结构分析的有限元列式。最后，以空间网架结构在地震作用下的损伤累积分析为例，给出了本文方法的具体实施步骤。
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| 关 键 词： | 损伤累积模型 损伤变量 网架结构 地震响应 |
DAMAGE CUMULATION ANALYSIS FOR SPATIAL GRID STRUCTURES SUBJECTED TO EARTHQUAKE |
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| Dong Bao Cao Wenxian Chen Xuechao.DAMAGE CUMULATION ANALYSIS FOR SPATIAL GRID STRUCTURES SUBJECTED TO EARTHQUAKE[J].Chinese Quarterly Mechanics,1996,17(2):127-131. |
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| Authors: | Dong Bao Cao Wenxian Chen Xuechao |
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| Institution: | Tongji University |
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| Abstract: | On the basis of the fundamental theory of the damage mechanics of continuum, a hypothesis called elastic modulus equivalence is proposed in this paper. Basing upon this hypothesis, a finite element formulation for spatial grid structures considering the damage cumulation effect is suggested. Finally, this paper gives an example of damage cumulation analysis for spatial grid structures subjected to earthquakes together with the implementation steps of this method. |
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| Keywords: | hypothesis of elastic modulus equivalene damage cumulation model dam- age variable |
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