外包钢套加固震损型钢混凝土框架结构Pushover分析
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摘要
为评估震损型钢混凝土框架结构经外包钢套加固后的抗震性能,基于试验研究,采用材料弹性模量变化考虑地震损伤,运用有限元软件SAP2000对外包钢套加固震损型钢混凝土框架进行Pushover分析。通过对Pushover曲线、塑性铰、层间位移角等分析,结果表明:当试验轴压比在0. 2～0. 9范围时,试验轴压比增大使型钢混凝土框架结构层间位移角增加;外包钢套强度对结构层间位移角的影响较小;地震损伤指数达到0. 6时,与未加固框架相比,加固修复框架结构层间位移角较大,说明未达到理想加固效果。
To evaluate the seismic performance of seismic-damaged steel reinforced concrete frame strengthened by enveloped steel,considering the seismic damage by changing material elastic modulus,the Pushover analysis of seismic-damaged steel reinforced concrete frame strengthened by enveloped steel was carried out by using the finite element software SAP2000 based on the experiment. Through the analysis of Pushover curve,plastic hinge and story drift ratio,the results showed that: when the experimental axial compression ratio was within the scope of 0. 2 ～0. 9,it increased the story drift ratio of steel reinforced concrete frame structures; the enveloped steel strength had less influence on the story drift ratio; when the seismic damage reached 0. 6,the story drift ratio of the strengthened frame was larger than that of the original frame,and the ideal reinforcement effect was not achieved.
To evaluate the seismic performance of seismic-damaged steel reinforced concrete frame strengthened by enveloped steel,considering the seismic damage by changing material elastic modulus,the Pushover analysis of seismic-damaged steel reinforced concrete frame strengthened by enveloped steel was carried out by using the finite element software SAP2000 based on the experiment. Through the analysis of Pushover curve,plastic hinge and story drift ratio,the results showed that: when the experimental axial compression ratio was within the scope of 0. 2 ～0. 9,it increased the story drift ratio of steel reinforced concrete frame structures; the enveloped steel strength had less influence on the story drift ratio; when the seismic damage reached 0. 6,the story drift ratio of the strengthened frame was larger than that of the original frame,and the ideal reinforcement effect was not achieved.
引文
1许成祥,彭威,许凯龙.震损混凝土框架结构加固修复研究现状及展望[J].长江大学学报(自然版科学),2014,11(4):68-71Xu Chengxiang,Peng Wei,Xu Kailong. Present situation and prospect of research on reinforcement and repair of damaged concrete frame structure[J]. Journal of Yangtze University(Nature Science Edition),2014,11(4):68-71
2 中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB50011—2010[S].北京:中国建筑工业出版社,2010Ministry of Housing and Urban of the People's Republic of China.Seismic design code for buildings:GB50011—2010[S]. Beijing:China Architecture&Building Press,2010
3 Adarril J M,Gimenez E,Calderon P A,et al. Experimental study of beam-column joints in axially loaded RC columns strengthened by steel angles and strips[J]. Steel and Composite Structures,2008,8(4):329-342
4 Gimenez E,Adam J M,Ivorra S,et al. Full-scale testing of axially loaded RC columns strengthened by steel angles and strips[J]. Advances in Structural Engineering,2009,12(2):169-181
5 殷杰,朱春明,龚治国,等.外包钢套法加固震损钢筋混凝土框架抗震性能试验研究[J].建筑结构,2013,43(12):67-73Yin Jie,Zhu Chunming,Gong Zhiguo,et al. Experimental study on seismic performance of earthquake-damaged RC frame strengthened by enveloped steel[J]. Building Structure,2013,43(12):67-73
6 Xu C X,Peng S,Deng J,et al. Study on seismic behavior of encased steel jacket-strengthened earthquake-damaged composite steel-concrete columns[J]. Journal of Building Engineering,2018,17:154-166
7 徐铨彪,干钢,陈刚.外包钢加固钢筋混凝土框架梁受力性能分析[J].建筑结构学报,2016,37(12):136-143Xu Quanbiao,Gan Gang,Chen Gang. Analysis on mechanical behavior of RC frame beams encased with steel plate[J]. Journal of Building Structures,2016,37(12):136-143
8 潘志宏,李爱群.基于纤维模型的外粘型钢加固混凝土柱静力弹塑性分析[J].东南大学学报(自然科学版),2009,39(3):552-556Pan Zhihong,Li Aiqun. Nonlinear static analysis on RC column strengthened with externally bonded steel frame based on fiber model[J]. Journal of Southeast University(Natural Science Edition),2009,39(3):552-556
9 王丹.基于Pushover方法的外包钢加固钢筋混凝土框架结构抗震性能分析与评估[D].西安:长安大学,2011Wang Dan. Seismic performance analysis and evaluation of RC frame strengthened with externally bonded steel based on Pushover[D].Xi'an:Chang'an University,2011
10 楚留声,白国良.型钢混凝土框架pushover分析[J].地震工程与工程振动,2009,29(2):51-56Chu Liusheng,Bai Guoliang. Pushover analysis of steel reinforced concrete frame[J]. Journal of Earthquake Engineering and Engineering Vibration,2009,29(2):51-56
11 Mander J B,Priestley M J N,Park R. Theoretical stress-strain model for confined concrete[J]. Journal of Structural Engineering,1988,114(8):1804-1826
12 中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB50010—2010[S].北京:中国建筑工业出版社,2015Ministry of Housing and Urban of the People's Republic of China.Code for design of concrete structures:GB 50010—2010[S]. Beijing:China Architecture&Building Press,2015
13 孙勇,张志强,程文瀼,等.基于侧向力加载方式的Pushover分析方法[J].工业建筑,2009,39(5):47-52,55Sun Yong,Zhang Zhiqiang,Cheng Wenrang,et al. Study on Pushover analysis method based on lateral loading pattern[J]. Industrial Construction,2009,39(5):47-52,55
14 殷占忠,张晓博,孙向阳,等.部分包裹混凝土柱加固钢框架结构的非线性分析[J].科学技术与工程,2018,18(17):89-94Yin Zhanzhong,Zhang Xiaobo,Sun Xiangyang,et al. Nonlinear analysis of steel frame Strengthened with partially encased concrete column[J]. Science Technology and Engineering,2018,18(17):89-94
15 王新玲,张龙,白晓康,等.钢筋混凝土框架结构屈服前阶段损伤程度模型分析[J].土木工程学报,2013,46(8):11-18Wang Xinling,Zhang Long,Bai Xiaokang,et al. Analysis of preyield damage degree model for reinforced concrete frame structure[J]. China Civil Engineering Journal,2013,46(8):11-18
16 李宏男,何浩祥.利用能力谱法对结构地震损伤评估简化方法[J].大连理工大学学报,2004,44(2):267-270Li Hongnan,He Haoxiang. A simplified approach for seismic damage assessment based on capacity spectrum method[J]. Journal of Dalian University of Technology,2004,44(2):267-270
17 查昕峰.型钢混凝土框架结构地震损伤演化过程研究[D].荆州:长江大学,2017Zha Xinfeng. Study on seismic damage evolution of steel reinforced concrete frame structure[D]. Jingzhou:Yangtze University,2017
2 中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB50011—2010[S].北京:中国建筑工业出版社,2010Ministry of Housing and Urban of the People's Republic of China.Seismic design code for buildings:GB50011—2010[S]. Beijing:China Architecture&Building Press,2010
3 Adarril J M,Gimenez E,Calderon P A,et al. Experimental study of beam-column joints in axially loaded RC columns strengthened by steel angles and strips[J]. Steel and Composite Structures,2008,8(4):329-342
4 Gimenez E,Adam J M,Ivorra S,et al. Full-scale testing of axially loaded RC columns strengthened by steel angles and strips[J]. Advances in Structural Engineering,2009,12(2):169-181
5 殷杰,朱春明,龚治国,等.外包钢套法加固震损钢筋混凝土框架抗震性能试验研究[J].建筑结构,2013,43(12):67-73Yin Jie,Zhu Chunming,Gong Zhiguo,et al. Experimental study on seismic performance of earthquake-damaged RC frame strengthened by enveloped steel[J]. Building Structure,2013,43(12):67-73
6 Xu C X,Peng S,Deng J,et al. Study on seismic behavior of encased steel jacket-strengthened earthquake-damaged composite steel-concrete columns[J]. Journal of Building Engineering,2018,17:154-166
7 徐铨彪,干钢,陈刚.外包钢加固钢筋混凝土框架梁受力性能分析[J].建筑结构学报,2016,37(12):136-143Xu Quanbiao,Gan Gang,Chen Gang. Analysis on mechanical behavior of RC frame beams encased with steel plate[J]. Journal of Building Structures,2016,37(12):136-143
8 潘志宏,李爱群.基于纤维模型的外粘型钢加固混凝土柱静力弹塑性分析[J].东南大学学报(自然科学版),2009,39(3):552-556Pan Zhihong,Li Aiqun. Nonlinear static analysis on RC column strengthened with externally bonded steel frame based on fiber model[J]. Journal of Southeast University(Natural Science Edition),2009,39(3):552-556
9 王丹.基于Pushover方法的外包钢加固钢筋混凝土框架结构抗震性能分析与评估[D].西安:长安大学,2011Wang Dan. Seismic performance analysis and evaluation of RC frame strengthened with externally bonded steel based on Pushover[D].Xi'an:Chang'an University,2011
10 楚留声,白国良.型钢混凝土框架pushover分析[J].地震工程与工程振动,2009,29(2):51-56Chu Liusheng,Bai Guoliang. Pushover analysis of steel reinforced concrete frame[J]. Journal of Earthquake Engineering and Engineering Vibration,2009,29(2):51-56
11 Mander J B,Priestley M J N,Park R. Theoretical stress-strain model for confined concrete[J]. Journal of Structural Engineering,1988,114(8):1804-1826
12 中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB50010—2010[S].北京:中国建筑工业出版社,2015Ministry of Housing and Urban of the People's Republic of China.Code for design of concrete structures:GB 50010—2010[S]. Beijing:China Architecture&Building Press,2015
13 孙勇,张志强,程文瀼,等.基于侧向力加载方式的Pushover分析方法[J].工业建筑,2009,39(5):47-52,55Sun Yong,Zhang Zhiqiang,Cheng Wenrang,et al. Study on Pushover analysis method based on lateral loading pattern[J]. Industrial Construction,2009,39(5):47-52,55
14 殷占忠,张晓博,孙向阳,等.部分包裹混凝土柱加固钢框架结构的非线性分析[J].科学技术与工程,2018,18(17):89-94Yin Zhanzhong,Zhang Xiaobo,Sun Xiangyang,et al. Nonlinear analysis of steel frame Strengthened with partially encased concrete column[J]. Science Technology and Engineering,2018,18(17):89-94
15 王新玲,张龙,白晓康,等.钢筋混凝土框架结构屈服前阶段损伤程度模型分析[J].土木工程学报,2013,46(8):11-18Wang Xinling,Zhang Long,Bai Xiaokang,et al. Analysis of preyield damage degree model for reinforced concrete frame structure[J]. China Civil Engineering Journal,2013,46(8):11-18
16 李宏男,何浩祥.利用能力谱法对结构地震损伤评估简化方法[J].大连理工大学学报,2004,44(2):267-270Li Hongnan,He Haoxiang. A simplified approach for seismic damage assessment based on capacity spectrum method[J]. Journal of Dalian University of Technology,2004,44(2):267-270
17 查昕峰.型钢混凝土框架结构地震损伤演化过程研究[D].荆州:长江大学,2017Zha Xinfeng. Study on seismic damage evolution of steel reinforced concrete frame structure[D]. Jingzhou:Yangtze University,2017