«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

23卷

期数:

2006年02期

页码:

46-51

栏目:

出版日期:

2006-06-20

文章信息/Info

Title:

Moment Magnification Factor in Anti-seismic Design of Concrete Frame Structure

作者:

易伟建;张颖;

湖南大学 土木工程学院,湖南 长沙 410082

Author(s):

YI Wei-jian, ZHANG Ying

School of Civil Engineering, Hunan University, Changsha 410082, Hunan, China

关键词:

框架结构;  失效模式;  失效概率;  结构优化;  弯矩增大系数

Keywords:

frame structure;  failure mode;  failure probability;  structure optimization;  bending moment magnification factor

分类号:

TU375.4

DOI:

-

文献标志码:

A

摘要:

基于结构的不同功能失效时对应的损失值不同这一基本事实,利用分枝限界法找出了框架结构在地震作用和竖向荷载共同作用下的主要失效模式和代表机构,通过引入基于失效概率的结构优化模型和结构失效损失期望值,并结合一个框架算例,对现行抗震设计规范的“强柱弱梁”弯矩增大系数的取值进行校核,优化分析得到了柱端弯矩增大系数的合理取值。计算结果表明,梁式失效机构的可靠指标为1.8,柱式失效机构的可靠指标为2.6,说明按照现行抗震设计规范设计的混凝土框架结构,可以满足“强柱弱梁”的要求。

Abstract:

Based on the fact that different failure modes have different loss values in a concrete frame structure under earthquake actions, the main failure modes and representative mechanisms of concrete frame structures under earthquake actions and vertical loads were found by the branch-bound method. Through introducing a structural optimization model based on the failure probability and a failure loss expectation of the structure, the values of the bending moment magnification factor of “strong column-weak beam” in the code for anti-seismic design of buildings were calibrated with an example of concrete frame. The reasonable values of bending moment magnification factor were obtained by optimization analysis, and the reliable indexes of beam mechanism and column mechanism in the frame were respectively 1.8 and 2.6. It is shown that the concrete frame structure designed according to the anti-seismic code can meet the requirement of “strong column-weak beam”.

参考文献/References:

[1] Eurocode 8,Design of Structures for Earthquake Resistance[S].
[2] ACI Committee 318,Building Code Requirements for Structural Concrete(ACI 318-99),and Commentary(ACI 318R-99)[S].
[3] NZS 3101,Concrete Structures Standard[S].
[4] 袁贤讯.钢筋混凝土框架结构抗震设计理论与方法研究[D].长沙:湖南大学,2000. YUAN Xian-xun.Research on Theory and Method of Anti-seismic Design of RC Frame Structures[D].Changsha:Hunan University,2000.
[5] 董学江.强柱弱梁型RC框架在地震荷载作用下的可靠度[J].青岛建筑工程学院学报,1996,17(3):29-32. DONG Xue-jiang.Reliability of RC Frame with Strong Column-Weak Beam Under Seismic Load Action[J].Journal of Qingdao Institute of Architecture and Engineering,1996,17(3):29-32.
[6] 沈蒲生,孟焕陵.框筒结构梁柱截面基于剪力滞最小的合理高度[J].建筑科学与工程学报,2005,22(3):16-19. SHEN Pu-sheng,MENG Huan-ling.Reasonable Section Height of Beam and Column Based on the Minimum Shear Lag in Framed Tube Structures[J].Journal of Architecture and Civil Engineering,2005,22(3):16-19.
[7] 陈肇元.要大幅度提高建筑结构设计的安全度[J].建筑结构,1999,29(1):3-6. CHEN Zhao-yuan.The Design Safety of Building Structures Should Be Greatly Raised[J].Building Structures,1999,29(1):3-6.
[8] 李明顺.结构设计安全度专题讨论综述[J].土木工程学报,1999,32(6):75-77. LI Ming-shun.Review and Discussion of Structural Design Safety[J].China Civil Engineering Journal,1999,32(6):75-77.
[9] 王锁军,王元清,吴 杰,等.组合梁刚度对组合框架的抗震性能影响分析[J].建筑科学与工程学报,2006,23(1):39-44. WANG Suo-jun,WANG Yuan-qing,WU Jie,et al.Analysis of Composite Beam Rigidity Influencing Seismic Properties of Composite Frame[J].Journal of Architecture and Civil Engineering,2006,23(1):39-44.
[10] 马玉平,马 昕,崔建涛.高强度混凝土试验研究[J].建筑科学与工程学报,2005,22(3):67-69. MA Yu-ping,MA Xin,CUI Jian-tao.Experimental Research on High-Strength Concrete[J].Journal of Architecture and Civil Engineering,2005,22(3):67-69.
[11] 郭军庆,王雪韵,雷自学,等.加芯混凝土框架柱轴压比限值试验研究[J].建筑科学与工程学报,2005,22(4):45-49. GUO Jun-qing,WANG Xue-yun,LEI Zi-xue,et al.Experimental Research on Limit Value of Axial Compression Ratio for Concrete Frame Columns with Central Reinforcement[J].Journal of Architecture and Civil Engineering,2005,22(4):45-49.
[12] 王光远,程耿东,邵卓民,等.抗震结构的最优设防烈度与可靠度[M].北京:科学出版社,1999. WANG Guang-yuan,CHENG Geng-dong,SHAO Zhuo-min,et al.Optimal Fortification Intensity and Reliability of Anti-seismic Structures[M].Beijing:Science Press,1999.
[13] 贺拥军,周绪红,刘永健,等.超大跨度巨型网格结构[J].建筑科学与工程学报,2005,22(3):25-29. HE Yong-jun,ZHOU Xu-hong,LIU Yong-jian,et al.Super-Span Reticulated Mega-structure[J].Journal of Architecture and Civil Engineering,2005,22(3):25-29.
[14] 刘伯权,潘 元.框架-抗震墙结构抗震墙抗弯刚度的优化研究[J].建筑科学与工程学报,2005,22(1):55-57. LIU Bo-quan,PAN Yuan.Study on Optimum Bending Rigidity of Seismic Wall in Frame-Shear Wall Structure[J].Journal of Architecture and Civil Engineering,2005,22(1):55-57.
[15] THOFT-CHRISTENSEN P,MUROTSU Y.Application of Structural System Reliability[M].Berlin:Springer-Verlag,1986.
[16] MELCHERS R E.Structural Reliability Analysis and Prediction[M].Chichester:Ellis Horwood Ltd,1987.
[17] 章在墉.抗震措施的经济评价和决策分析[C]//中国地震学会.全国地震工程论文选集.上海:上海科技出版社,1984:27-35. ZHANG Zai-yong.Economic Evaluation and Decision-Making Analysis on the Anti-seismic Measurements[C]//Seismological Society of China.Selections of Proceedings on the National Earthquake Engineering Conference.Shanghai:Shanghai Science and Technology Press,1984:27-35.
[18] KAZUHIKO K,TAKASHI K.Evaluation of Indirect Economic Effect Caused by the 1983 Nihowkai Chubu Earthquake Japan[J].Earthquake Spectra,1990,6(4):739-756.
[19] 张 颖.基于失效损失期望的RC框架抗震设计参数优化[D].长沙:湖南大学,2005. ZHANG Ying.Optimal Parameters in Anti-seismic Design of RC Frame Based on the Failure Loss Expectation[D].Changsha:Hunan University,2005.

相似文献/References:

[1]田 力,范其华.多层框架结构在其地下室内部爆炸冲击下的连续倒塌机理研究[J].建筑科学与工程学报,2016,33(01):46.
　TIAN Li,FAN Qi-hua.Research on Progressive Collapse Mechanism of Multi-layered Frame Structure Under Blast Impact in Internal of Basement[J].Journal of Architecture and Civil Engineering,2016,33(02):46.
[2]郭 猛,王双娇,袁 泉,等.框格形式影响组合墙加固框架抗震性能试验[J].建筑科学与工程学报,2017,34(04):65.
　GUO Meng,WANG Shuang-jiao,YUAN Quan,et al.Seismic Performance Experiment of Frame Strengthened by Composite Walls with Different Grid Forms[J].Journal of Architecture and Civil Engineering,2017,34(02):65.
[3]杨佑发,熊丽,陈远.基于神经网络的框架结构损伤多重分步识别[J].建筑科学与工程学报,2011,28(01):106.
　YANG You-fa,XIONG Li,CHEN Yuan.Multi-stage Damage Identification for Frame Structures Based on Neural Network[J].Journal of Architecture and Civil Engineering,2011,28(02):106.
[4]黄 华,黄 敏,郭洁娜,等.RC框架结构连续倒塌影响因素与破坏机制的研究现状[J].建筑科学与工程学报,2018,35(06):29.
　HUANG Hua,HUANG Min,GUO Jie-na,et al.Research Status on Influencing Factors and Failure Mechanism for RC Frame Structural Progressive Collapse[J].Journal of Architecture and Civil Engineering,2018,35(02):29.

备注/Memo

备注/Memo:

收稿日期:2006-02-11
基金项目:国家自然科学基金项目(50378034); 教育部高等学校博士学科点专项科研基金项目(20030532020)
作者简介:易伟建(1954-),男,湖南长沙人,教授,博士生导师,工学博士,E-mail:hunuyi@public.cs.hn.cn。

常用功能

更新日期/Last Update: 2006-06-20