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  2014 

预应力钢绞线网加固钢筋混凝土柱恢复力模型研究

DOI: 10.6052/j.issn.1000-4750.2012.11.0833, PP. 109-119

Keywords: 预应力高强钢绞线,钢筋混凝土柱,抗震加固,骨架曲线,滞回曲线,恢复力模型

Full-Text   Cite this paper   Add to My Lib

Abstract:

基于16根采用新型预应力钢绞线网张拉锚固技术加固的钢筋混凝土柱和2根对比柱在反复荷载作用下的试验结果,进行了恢复力模型研究。结合之前相关试验研究,确定出材料的本构关系,建立了预应力高强钢绞线网约束加固钢筋混凝土的应力-应变关系方程;考虑构件轴力的二次矩效应,提出了在反复荷载下预应力加固钢筋混凝土柱骨架曲线的计算方法,建立了相应理论模型;结合Clough滞回规则,建立了相应的恢复力模型。研究表明:对试验的材料本构关系适当简化,通过合理的假定,由基本的内外力平衡方程和简单的滞回规则,可得到构件从加载到破坏全过程与试验吻合良好的骨架曲线和滞回曲线,由此建立的恢复力模型简单、适用,可为预应力高强钢绞线网加固钢筋混凝土柱设计和施工提供参考。

References

[1]  郭子雄, 杨勇. 恢复力模型研究现状及存在问题[J]. 世界地震工程, 2004, 20(4): 47-51. Guo Zixiong, Yang Yong. State-of-the-art of restoring force models for RC structures [J]. World Earthquake Engineering, 2004, 20(4): 47-51. (in Chinese)
[2]  陈亮. 高强不锈钢绞线网用于混凝土柱抗震加固的试验研究[D]. 北京: 清华大学, 2004. Chen Liang. Experimental study of the seismic behavior of RC column strengthened with high strength steel wire [D]. Beijing: Tsinghua University, 2004. (in Chinese)
[3]  魏洋, 吴刚, 吴智深, 等. 不同材料环向缠绕加固混凝土墩柱抗震性能比较研究[J]. 世界桥梁, 2008(3): 36-40. Wei Yang, Wu Gang, Wu Zhishen, et al. Comparative study of seismic performance of concrete pier columns strengthened by circularly wrapping by different materials [J]. World Bridges, 2008(3): 36-40. (in Chinese)
[4]  Choi Jun-Hyeok. Seismic retrofit of reinforced concrete circular columns using stainless steel wire mesh composite [J]. Canadian Journal of Civil Engineering, 2008, 35(2): 140-147.
[5]  Saatcioglu M, Yalcin C. External prestressing concrete columns for improved seismic shear resistance [J]. Journal of Structural Engineering, ASCE, 2003, 129(8): 1057-1070.
[6]  邓宗才, 郭俊平, 肖锐. 一种预应力钢绞线加固混凝土柱体的张拉锚固系统[P]. 中国: CN201010152467.X, 2010-08-25. Deng Zongcai, Guo Junping, Xiao Rui. A stressing and anchoring system of prestressing steel wire strengthening concrete column [P]. Chinese patent: CN201010152467.X, 2010-08-25. (in Chinese)
[7]  阎石, 肖潇, 阚立新, 等. 高强钢筋高强混凝土柱恢复力模型[J]. 沈阳建筑大学学报(自然科学版), 2005, 21(2): 81-85. Yan Shi, Xiao Xiao, Kan Lixin, et al. Resilience model of high-strength reinforcement and high-strength concrete columns [J]. Journal of Shenyang Jianzhu University (Natural Science), 2005, 21(2): 81-85. (in Chinese)
[8]  Roufaiel M S L, Meyer C. Analytical modeling of hysteretic behavior of R/C frames [J]. Journal of Structural Engineering, 1987, 113(3): 429-444.
[9]  贡金鑫, 李金波, 赵国藩. 受腐蚀钢筋混凝土构件的恢复力模型[J]. 土木工程学报, 2005, 38(11): 38-44. Gong Jinxin, Li Jinbo, Zhao Guofan. Restoring force model of corroded reinforced concrete elements [J]. China Civil Engineering Journal, 2005, 38(11): 38-44. (in Chinese)
[10]  GB 50010-2010, 混凝土结构设计规范[S]. 北京: 中国建筑工业出版社, 2010: 35. GB 50010-2010, Code for design of concrete structures [S]. Beijing: China Architecture and Building Press, 2010: 35. (in Chinese)
[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]  赵忠虎, 谢和平, 许博, 等. 钢筋混凝土压弯构件恢复力特性研究状况[J]. 工业建筑, 2006, 36(1): 62-65. Zhao Zhonghu, Xie Heping, Xu Bo, et al. Present status of research on characteristics of restoring force of RC compression-flexure member [J]. Industrial Construction, 2006, 36(1): 62-65. (in Chinese)
[13]  姜锐, 苏小卒. 塑性铰长度经验公式的比较研究[J]. 工业建筑, 2008, 35(增刊): 425-430. Jiang Rui, Su Xiaozu. Comparative study on emprical plastic hinge length formulas [J]. Industrial Construction, 2008, 38(Suppl): 425-430. (in Chinese)
[14]  过镇海, 时旭东. 钢筋混凝土原理和分析[M]. 北京: 清华大学出版社, 2003: 17, 352-353. Guo Zhenhai, Shi Xudong. Reinforced concrete theory and analyses [M]. Beijing: Tsinghua University Press, 2003: 17, 352-353. (in Chinese)
[15]  邓宗才, 李建辉. 混杂FRP加固腐蚀混凝土柱恢复力模型研究[J]. 工程力学, 2011, 28(8): 151-159. Deng Zongcai, Li Jianhui. Study on restoring force model of RC columns strengthed with hybrid FRP [J]. Engineering Mechanics, 2011, 28(8): 151-159. (in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133