全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
工程力学  2015 

ECC修复震损剪力墙抗震性能试验研究

DOI: 10.6052/j.issn.1000-4750.2013.07.0642, PP. 72-80

Keywords: 高延性纤维增强水泥基复合材料,剪力墙,拟静力试验,修复,抗震性能

Full-Text   Cite this paper   Add to My Lib

Abstract:

该文采用拟静力试验研究了采用高延性纤维增强水泥基复合材料(ECC)修复后的震损钢筋混凝土剪力墙的抗震性能。先对剪力墙进行了初次拟静力试验,剪力墙呈现剪切破坏,混凝土压溃,脚部钢筋压弯、屈服甚至断裂,然后采用ECC对震损的钢筋混凝土剪力墙进行了修复,随后进行了再次拟静力试验。通过对比分析前后两次试验结果,从剪力墙破坏模式、承载能力、延性、耗能能力、刚度退化、钢筋效用发挥等方面的差异,综合评价ECC用于修复震损剪力墙的有效性。试验结果表明:a)剪力墙的承载能力基本得到恢复;b)在保证承载能力的前提下,剪力墙的延性得到提高,改变剪力墙的破坏模式,由脆性破坏转化为延性破坏;c)提高墙体的耗能能力;d)避免剪力墙墙脚混凝土的压溃和钢筋的屈曲,依靠ECC与钢筋良好的变形协调性,提高脚部钢筋的利用率。

References

[1]  周颖, 吕西林. 智力地震钢筋混凝土高层建筑震害对我国高层结构设计的启示[J]. 建筑结构学报, 2011, 32(5): 17―23.
[2]  Zhou Ying, Lü Xilin. Lessons learnt from damages of reinforced concrete tall buildings in Chile Earthquake and revelations to structural design in China [J]. Journal of Building Structures, 2011, 32(5): 17―23. (in Chinese)
[3]  章红梅, 吕西林. 粘钢加固钢筋混凝土剪力墙抗震性能试验研究[J]. 结构工程师, 2007, 23(1): 72―76.
[4]  Zhang Hongmei, Lü Xilin. Experiment study on seismic behavior of reinforced concrete walls strengthened by bonded steel [J]. Structural Engineers, 2007, 23(1): 72―76. (in Chinese)
[5]  盛光远. 粘钢加固钢筋混凝土剪力墙抗震性能研究[D]. 上海: 同济大学, 2006.
[6]  Sheng Guangyuan. Researches on the seismic behavior of RC shear wall strengthened with bonding steel plate [D]. Shanghai: Tongji University, 2006. (in Chinese)
[7]  刘卓. 外包钢加固钢筋混凝土剪力墙的抗震性能试验研究与有限元分析[D]. 沈阳: 沈阳建筑大学, 2009.
[8]  Liu Zhuo. Experimental research and finite element analysis on seismic behavior of reinforced concrete shear wall strengthened by enveloped steel [D]. Shenyang: Shenyang Architectural University, 2009. (in Chinese)
[9]  梅许江, 苏明周, 石韵, 蒋春云. 角钢加固剪力墙墙肢底部试验研究[J]. 西华大学学报(自然科学版), 2012, 31(5): 86―90.
[10]  Mei Xujiang, Su Mingzhou, Shi Yun, Jiang Chunyun. Experimental research on application of angle steel in reinforcement of limb base of a shear wall [J]. Journal of Xihua University (Natural Science), 2012, 31(5): 86―90. (in Chinese)
[11]  曾洪超. FRP加固混凝土竖向构件的抗震性能研究[D]. 北京: 北京工业大学, 2010.
[12]  Zeng Hongchao. Study on seismic performance of RC vertical components strengthened with FRP [D]. Beijing: Beijing University of Technology, 2010. (in Chinese)
[13]  邓宗才, 曾洪超. 层内混杂 FRP加固混凝土剪力墙抗震性能试验[J]. 北京工业大学学报, 2012, 38(10): 1504―1508.
[14]  Deng Zongcai, Zeng Hongchao. Experiment on seismic performance of reinforced concrete shear walls strengthened with hybrid FRP [J]. Journal of Beijing university of technology, 38(10): 1504―1508. (in Chinese)
[15]  丰卉梅. 不同类型片材加固剪力墙性能比较研究[D]. 郑州: 郑州大学, 2011.
[16]  Feng Huimei. Comparative research on behavior of reinforced concrete shear wall strengthened with different types of sheet [D]. Zhengzhou: Zhengzhou University, 2011. (in Chinese)
[17]  刘明学. 碳纤维布提高剪力墙延性的试验研究[D]. 天津: 天津大学, 2004.
[18]  Liu Mingxue. Experimental study on increasing the ductility of reinforced concrete shear walls strengthened by carbon fiber sheet [D]. Tianjin: Tianjin University, 2004. (in Chinese)
[19]  Dan D. Experimental tests on seismically damaged composite steel concrete walls retrofitted with CFRP composites [J]. Engineering Structures, 2012, 45(12): 338―348.
[20]  Zhou H, Attard T L, Zhao B, et al. Experimental study of retrofitted reinforced concrete shear wall and concrete-encased steel girders using a new CarbonFlex composite for damage stabilization [J]. Engineering Failure Analysis, Available online 20 February, 2013, 35(12): 219―233.
[21]  Antoniades K K, Salonikios T N, Kappos A J. Tests on seismically damaged reinforced concrete walls repaired and strengthened using fiber-reinforced polymers [J]. Journal of Composites for Construction, 2005, 9(3): 236―246.
[22]  Li B, Lim C L. Tests on seismically damaged reinforced concrete structural walls repaired using fiber-reinforced polymers [J]. Journal of Composites for Construction, 2010, 14(5): 597―608.
[23]  SinanAltin, Özgür Anil, Yag˘murKopraman, Emin Kara M. Hysteretic behavior of RC shear walls strengthened with CFRP strips [J]. Composites: Part B: Engineering, 2013, 44(1): 321―329.
[24]  Li V C. 高延性纤维增强水泥基复合材料的研究进展及应用[J]. 硅酸盐学报, 2007, 35(4): 531―536.
[25]  Li V C. Progress and Applications of Engineered Cementitious Composites [J]. Journal of Chinese Ceramic Society, 2007, 35(4): 531―536. (in Chinese)
[26]  Fischer G, Li V C. Intrinsic response control of moment-resisting frames utilizing advanced composite materials and structural elements [J]. AIC Structurnal Journal, 2003, 100(2): 166―176.
[27]  Li V C, Mishra D K, Naaman A E, et al. On the shear behavior of engineered cementitious composites [J]. Advanced Cement Based Materials, 1994, 1(3): 142―149.
[28]  Kanda T, Watanabe S, Li V C. Application of pseudo strain hardening cementitious composites to shear resistant structural elements [J]. Aedificatio Publishers, Fracture Mechanics of Concrete Structures, Proceedings FRAMCOS-3, AEDIFICATIO Publishers, D-79104 Freiburg, Germany, 1998, 3: 1477―1490.
[29]  Canbolat B A, Parra-Montesinos G J, Wight J K. Experimental study on seismic behavior of high-performance fiber-reinforced cement composite coupling beams [J]. ACI Structural Journal-American Concrete Institute, 2005, 102(1): 159―166.
[30]  Fischer G, Li V C. Effect of matrix ductility on deformation behavior of steel-reinforced ECC flexural members under reversed cyclic loading conditions [J]. ACI Structural Journal, 2002, 99(6): 781―790.
[31]  邓明科, 高晓军, 梁兴文. ECC面层加固砖墙抗震性能试验研究[J]. 工程力学, 2013, 30(6): 168―174.
[32]  Deng Mingke, Gao Xiaojun, Liang Xingwen. Experimental investigation on seismic behavior of brick wall strengthened with ECC splint [J]. Engineering Mechanics, 2013, 30(6): 168―174. (in Chinese)
[33]  梁兴文, 郑雨, 邓明科, 寇佳亮、车佳玲.塑性铰区采用纤维增强混凝土剪力墙的变形性能研究[J]. 工程力学, 2013, 30(3): 256―262.
[34]  Liang Xingwen, Zheng Yu, Deng Mingke, Kou Jialiang, Che Jialing. An investigation of deformation behavior of the shear wall with fiber-reinforced concrete in plastic hinge region [J]. Engineering Mechanics, 2013, 30(3): 256―262. (in Chinese)
[35]  GB50010-2010, 混凝土结构设计规范[S]. 北京: 中国建筑工业出版社, 2010.
[36]  GB50010- 2010, Code for design of concrete structures [S]. Beijing: China Building Industry Press, 2010. (in Chinese)
[37]  唐波. “一”字形扁柱、短肢剪力墙拟静力试验研究[D]. 上海: 同济大学, 2012.
[38]  Tang Bo. Experimental study on flat column with shallow rectangular section and short-pier shear wall [D]. Shanghai: Tongji University, 2012. (in Chinese)
[39]  魏亮亮. 水平推力作用下短肢剪力墙的试验和数值模拟研究[D]. 上海: 同济大学. 2013.
[40]  Wei Liangliang. Experimental study and numerical analysis of short-pier shear wall under horizontal load [D]. Shanghai: Tongji University, 2013. (in Chinese)
[41]  Kanda T, Li V C. Practical design criteria for saturated pseudo strain hardening behavior in ECC [J]. Journal of Advanced Concrete Technology, 2006, 4(1): 59―72.
[42]  朱伯龙. 结构抗震试验[M]. 北京: 地震出版社, 1989: 28.
[43]  Zhu bolong. Structure seismic test [M]. Beijing: Seismological Press, 1989: 28. (in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133