«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:

37卷

期数:

2020年06期

页码:

64-72

栏目:

出版日期:

2020-11-30

文章信息/Info

Title:

Analysis of Vertical Collapse Resistance of Damaged RC Frame Structure Under Seismic Action

文章编号:

1673-2049(2020)06-0064-09

作者:

何庆锋^1,2,聂玉莲¹,邓颖婷¹

1. 湖南大学 土木工程学院,湖南 长沙 410082; 2. 湖南大学 工程结构损伤诊断湖南省重点实验室,湖南 长沙 410082

Author(s):

HE Qing-feng^1,2, NIE Yu-lian¹, DENG Ying-ting¹

1. College of Civil Engineering, Hunan University, Changsha 410082, Hunan, China; 2. Hunan Provincial Key Laboratory on Damage Diagnosis for Engineering Structures, Hunan University, Changsha 410082, Hunan, China

关键词:

抗竖向倒塌性能;  时程分析法;  损伤框架结构;  竖向地震作用;  失效过程;  OpenSees

Keywords:

vertical collapse resistance;  time history analysis method;  damaged frame structure;  vertical seismic action;  failure process;  OpenSees

分类号:

TU311.41

DOI:

-

文献标志码:

A

摘要:

为了研究存在损伤支撑构件的钢筋混凝土框架结构在地震作用下的竖向连续倒塌性能,从美国太平洋地震工程研究中心(PEER)数据库中选取了3条远场地震波、4条近场地震波以及1条人工地震波作为地震输入,利用等效轴力变化模拟损伤柱失效过程,基于OpenSees有限元分析平台,采用时程分析法对中柱在地震作用下逐渐失效的平面框架结构的抗竖向倒塌性能进行了分析。结果表明:在8度罕遇地震(加速度峰值为0.4g,g为重力加速度)作用下,损伤柱快速失效,在相同的失效时间下,竖向加速度峰值与地震波总能量竖向分量能显著增加结构竖向响应,从而加大结构的竖向倒塌风险; 相对于不考虑地震作用时,考虑地震作用的中柱竖向位移峰值和中柱相邻梁端受拉钢筋应变峰值都明显增大; 随着中柱失效时间的增大,动力效应的影响逐渐减弱,地震作用对剩余结构的影响逐渐减小。

Abstract:

In order to study the vertical continuous collapse performance of reinforced concrete frame structures with damaged supporting members under seismic action, three far-field seismic waves, four near-field seismic waves and one artificial seismic wave were selected from database of Pacific Earthquake Engineering Research Center(PEER)as seismic inputs. The failure process of the damaged column was simulated by using the equivalent axial force variation. Based on the OpenSees platform, the vertical collapse resistance of plane frame structures whose columns gradually failed under seismic action was analyzed by time history analysis method. The results show that under the influence of 8 degree rare earthquake(peak acceleration is 0.4g, g is gravitational acceleration), the damaged column fails rapidly; under the same failure time, the vertical peak acceleration and the vertical component of seismic total energy can significantly increase the vertical response of structures, thus increasing the risk of vertical collapse of the structure; compared with the case without considering seismic action, the peak vertical displacement of the middle column and the peak strain of tensioned steel bar at the end of adjacent beam of middle column increase significantly; with the increase of failure time of the middle column, the influence of dynamic effect is gradually weakened, and the influence of seismic action on the residual structure is gradually reduced.

参考文献/References:

[1] 张 鑫,徐向东.汶川大地震钢筋混凝土框架结构震害调查[J].山东建筑大学学报,2008,23(6):547-550. ZHANG Xin,XU Xiang-dong.A Report on Damages of RC Frame Structures in Great Wenchuan Earthquake[J].Journal of Shandong Jianzhu University,2008,23(6):547-550.
[2]熊立红,兰日清,王玉梅,等.芦山 7.0级强烈地震建筑结构震害调查[J].地震工程与工程振动,2013,33(4):35-43. XIONG Li-hong,LAN Ri-qing,WANG Yu-mei,et al.Earthquake Damage Investigation of Structures in 7.0 Lushan Strong Earthquake[J].Journal of Earthquake Engineering and Engineering Vibration,2013,33(4):35-43.
[3]付成祥.RC框架结构典型地震倒塌模式研究[D].哈尔滨:中国地震局工程力学研究所,2014. FU Cheng-xiang.Study on Typical Seismic Collapse Pattern of RC Frame Structure[D].Harbin:Institute of Engineering Mechanics,China Earthquake Administration,2014.
[4]何庆锋,易伟建.考虑悬索作用钢筋混凝土梁柱子结构抗倒塌性能试验研究[J].土木工程学报,2011,44(4):52-59. HE Qing-feng,YI Wei-jian.Experimental Study of the Collapse-resistant Behavior of RC Beam-column Sub-structures Considering Catenary Action[J].China Civil Engineering Journal,2011,44(4):52-59.
[5]SU Y,TIAN Y,SONG X.Progressive Collapse Resistance of Axially-restrained Frame Beams[J].ACI Structural Journal,2009,106(5):600-607.
[6]KAEWKULCHAI G,WILIAMSON E B.Dynamic Behavior of Planar Frames During Progressive Collapse[C]//ASCE.Proceedings of the 16th ASCE Engineering Mechanics Conference.Seattle:Washington University,2003:16-18.
[7]何庆锋,邓颖婷.地震作用下RC框架结构抗连续倒塌数值分析[J].湖南科技大学学报:自然科学版,2018,33(3):22-30. HE Qing-feng,DENG Ying-ting.Numerical Analysis of Collapse-resistant Performance for RC Frame Structure Under Earthquake[J].Journal of Hunan University of Science & Technology:Natural Science Edition,2018,33(3):22-30.
[8]易伟建,何庆锋,肖 岩.钢筋混凝土框架结构抗倒塌性能的试验研究[J].建筑结构学报,2007,28(5):104-109,117. YI Wei-jian,HE Qing-feng,XIAO Yan.Collapse Performance of RC Frame Structure[J].Journal of Building Structures,2007,28(5):104-109,117.
[9]GB 50010—2010,混凝土结构设计规范[S]. GB 50010—2010,Code for Design of Concrete Structures[S].
[10]GB 50011—2010,建筑抗震设计规范[S]. GB 50011—2010,Code for Seismic Design of Buildings[S].
[11]LOWES L N,MITRA N,ALTOONTASH A.A Beam-column Joint Model for Simulating the Earthquake Response of Reinforced Concrete Frames[M].Berkeley:Pacific Earthquake Engineering Research Center,College of Engineering,University of California,2003.
[12]BAO Y.Macromodel-based Progressive Collapse Simulation of Reinforced Concrete Structures[J].Dissertations & Theses-gradworks,2008,134(7):1079-1091.
[13]吴健秋.基于OpenSees的梁-柱节点单元的适用性和定参方法研究[D].重庆:重庆大学,2007. WU Jian-qiu.A Study on the Applicability and Parameter Defining Method of the Beam-column Model in OpenSees[D].Chongqing:Chongqing University,2007.
[14]解琳琳,叶献国,种 迅,等.OpenSees中混凝土框架结构节点模型关键问题的研究与验证[J].工程力学,2014,31(3):116-121,151. XIE Lin-lin,YE Xian-guo,CHONG Xun,et al.Research and Verification on Joint Model of RC Frame Structure in OpenSees[J].Engineering Mechanics,2014,31(3):116-121,151.
[15]蒋曲翀.钢筋混凝土框架结构倒塌过程中动力效应试验研究[D].长沙:湖南大学,2014. JIANG Qu-chong.Experimental Study on the Dynamic Effect for RC Frame Structures to Resist Progressive Collapse[D].Changsha:Hunan University,2014.
[16]杨 溥,李英民,赖 明.结构时程分析法输入地震波的选择控制指标[J].土木工程学报,2000,33(6):33-37. YANG Pu,LI Ying-min,LAI Ming.A New Method for Selecting Inputting Waves for Time-history Analysis[J].China Civil Engineering Journal,2000,33(6):33-37.
[17]STOCKWELL R G,MANSINHA L,LOWE R P.Localization of the Complex Spectrum:The S Transform[J].IEEE Transactions on Signal Processing,1996,44(4):998-1001.
[18]樊 剑,吕 超,张 辉.地震波时频特征及与结构地震响应的关系[J].工程力学,2010,27(6):98-105,126. FAN Jian,LU Chao,ZHANG Hui.Relation Between Time-frequency Characteristic of Earthquake Ground Motions and Structural Earthquake Responses[J].Engineering Mechanics,2010,27(6):98-105,126.

相似文献/References:

[1]宋锋,王元清,石永久.钢结构跃层加层的地震反应分析[J].建筑科学与工程学报,2009,26(01):55.
　SONG Feng,WANG Yuan-qing,SHI Yong-jiu.Seismic Response Analysis of Adding Extra-floors Spanning Existing Building with Steel Structure[J].Journal of Architecture and Civil Engineering,2009,26(06):55.
[2]周士金,刘荣桂,蔡东升,等.CFRP索和钢索斜拉桥地震响应分析与抗震验算[J].建筑科学与工程学报,2009,26(03):76.
　ZHOU Shi-jin,LIU Rong-gui,CAI Dong-sheng,et al.Seismic Response Analysis and Seismic Resistance Checking of Cable-stayed Bridges with CFRP Cables and Steel Cables[J].Journal of Architecture and Civil Engineering,2009,26(06):76.

备注/Memo

备注/Memo:

收稿日期:2019-12-11 基金项目:国家重点研发计划项目(2016YFC0701308) 作者简介:何庆锋(1979-),男,湖北黄冈人,高级工程师,工学博士,E-mail:sammyhqf@163.com。

常用功能

更新日期/Last Update: 1900-01-01