|本期目录/Table of Contents|

[1]叶列平,林旭川,曲哲,等.基于广义结构刚度的构件重要性评价方法[J].建筑科学与工程学报,2010,27(01):1-6,20.
　YE Lie-ping,LIN Xu-chuan,QU Zhe,et al.TU311.3[J].Journal of Architecture and Civil Engineering,2010,27(01):1-6,20.
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基于广义结构刚度的构件重要性评价方法(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
27卷
期数:
2010年01期
页码:
1-6,20
栏目:
出版日期:
2010-03-20

文章信息/Info

Title:
TU311.3
作者:
叶列平,林旭川,曲哲,陆新征,潘鹏
清华大学 土木工程系,北京 100084
Author(s):
YE Lie-ping, LIN Xu-chuan, QU Zhe, LU Xin-zheng, PAN Peng
Department of Civil Engineering, Tsinghua University, Beijing 100084, China
关键词:
结构安全性;  构件重要性指标;  广义结构刚度;  传力路径;  变形能
Keywords:
structural safety;  element importance index;  generalized structural stiffness;  load path;  strain energy
分类号:
TU311.3
DOI:
-
文献标志码:
A
摘要:
总结了现有构件重要性评价指标的研究概况和工程经验; 根据结构体系传力路径中传递荷载比例大的构件重要性大的思路,通过理论推导定义了考虑荷载作用的广义结构刚度; 以拆除构件对广义结构刚度的影响程度作为该构件重要性评价指标,并进一步将该指标转化为结构变形能损失率,使该指标的概念更为清晰; 采用该评价方法对1组框架结构分别在重力荷载和水平地震荷载作用下的构件重要性进行了分析。结果表明:该方法具有合理性,且便于计算,可用于大多数类型的结构。
Abstract:
A summary of existing researches and engineering experience on element importance in the structural systems were presented. Based on the consensus that elements transferring more loads in the load path were generally more important in the structural systems, the element importance index was defined as the change in generalized structural stiffness under a certain load pattern after removing the element from the system. Then, the generalized structural stiffness taking into account the load pattern was proposed as a basis for evaluating the element importance. This index was further expressed in terms of the rate of structural strain energy change. The element importances of a series of frame structures under gravity and horizontal seismic load were then evaluated by the proposed method. The results show that the method is rational, convenient for calculating, and applicable to most structures.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2010-01-01
基金项目:国家自然科学基金重点项目(90815025); “十一五”国家科技支撑计划项目(2009BAJ28B01); “十一五”国家科技支撑计划项目(2006BAJ03A02)
作者简介:叶列平(1960-),男,浙江温州人,教授,博士研究生导师,工学博士,E-mail:ylp@tsinghua.edu.cn。
更新日期/Last Update: 2010-03-20