| 复杂结构局部非线性地震反应精细时程分析 |
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| 引用本文： | 赵岩,林家浩,唐光武.复杂结构局部非线性地震反应精细时程分析[J].大连理工大学学报,2004,44(2):190-194. |
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| 作者姓名： | 赵岩 林家浩 唐光武 |
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| 作者单位： | 大连理工大学,工业装备结构分析国家重点实验室,辽宁,大连,116024;大连理工大学,工程力学系,辽宁,大连,116024;重庆交通科研设计院,重庆,400067;大连理工大学,工业装备结构分析国家重点实验室,辽宁,大连,116024;大连理工大学,工程力学系,辽宁,大连,116024;重庆交通科研设计院,重庆,400067 |
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| 基金项目： | 国家自然科学基金资助项目(10072015)，国家重点基础研究专项经费资助项目(G1999032805). |
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| 摘 要： | 对于大型复杂结构局部非线性地震反应，采用精细时程积分法计算其动力响应，充分利用结构只有局部单元构件进入非线性的特点，提出一种较通用的运动方程建立方法，并在结构的初始线性振型上进行分析计算，极大提高了求解效率，并具有很好的精度。
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| 关 键 词： | 局部非线性 时程分析 精细积分 |
| 文章编号： | 1000-8608(2004)02-0190-05 |
Precise integration of seismic responses of complex structures with local non-linearity |
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| ZHAOYan.Precise integration of seismic responses of complex structures with local non-linearity[J].Journal of Dalian University of Technology,2004,44(2):190-194. |
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| Authors: | ZHAOYan |
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| Abstract: | Precise time-history integration is used in the seismic analysis of the complex structures, of which only a small part of elements may enter the elasto-plastic state under strong seismic excitations. The nonlinear terms of such elements are moved to the right hand side of the equation of motion, and the linear precise integration will then be executed repeatedly based on the original linear structure. The degrees of freedom of the structure can be considerably reduced using the natural modes of the linear structure. Numerical examples show that this scheme is not only quite precise, but also very efficient. |
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| Keywords: | local nonlinearity time-history analysis precise integration |
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