EXPERIMENTAL STUDY ON REINFORCED CONCRETE COLUMN RETROFITTED BY PRESTRESSED STEEL STRIPS

Yang Yong; Zhao Fei; Liu Yi; Xue Jianyang

doi:10.13204/j.gyjz201302009

Volume 43 Issue 2

Dec. 2014

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Yang Yong, Zhao Fei, Liu Yi, Xue Jianyang. EXPERIMENTAL STUDY ON REINFORCED CONCRETE COLUMN RETROFITTED BY PRESTRESSED STEEL STRIPS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(2): 45-48. doi: 10.13204/j.gyjz201302009

Citation:

Yang Yong, Zhao Fei, Liu Yi, Xue Jianyang. EXPERIMENTAL STUDY ON REINFORCED CONCRETE COLUMN RETROFITTED BY PRESTRESSED STEEL STRIPS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(2): 45-48. doi: 10.13204/j.gyjz201302009

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EXPERIMENTAL STUDY ON REINFORCED CONCRETE COLUMN RETROFITTED BY PRESTRESSED STEEL STRIPS

doi: 10.13204/j.gyjz201302009

1.
School of Civil Engineering of Xi’an University of Architecture and Technology,Xi’an 710055,China

Received Date: 2012-06-19
Publish Date: 2013-02-20

Abstract

Abstract

A innovative technique for retrofitting reinforced concrete(RC) columns using prestressing steel strips(PSS) was introduced,and quasi-static tests of reinforced concrete column retrofitted by this new method under high axial-compression ratio were conducted.In the quasi-static test of these four retrofitted concrete column specimens,the influence on specimens' seismic performance of axial-compression ratio and spacing of the steel strips were studied.And based on the test results,the seismic performance indexes such as characteristic of resilience,skeleton curve,ductility coefficient and energy consumption were all analyzed and discussed.It could be concluded that this innovative retrofit technique could markedly improve the column's deformation ability and ductility,so as to improve the column seismic performance.
- prestressed steel strips,
- retrofit,
- RC columns,
- seismic performance,
- experimental study

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References(7)

References

姚秋来.建筑业10项新技术(2010版)之抗震加固与检测技术[J].施工技术,2011,40(366):47-48.

[2] Saatcioglu M, Yalcin C. External Prestressing Concrete Columnsfor Improved Shear Resistance[J]. Journal of StructureEngineering, ASCE,2003,129(8):1057-1070.

[3] Budek A M, Lee C O, N M J. Priestley. Seismic Design ofCircular Bridge Columns with Unstressed Prestressing Strand forTransverse Reinforcement[R]. Research Report. No. SSRP-2001/16, Dept. of Structure Engineering, University of California at SanDiego.

[4] Munawar A H, Robert G C. Experimental Study on the SeismicPerformance of Externally Confined Reinforced Concrete Columns[J]. Proc.13 th WCEE, Canada,2004.

[5] 郭子雄,张杰,杨勇.设置外包预应力钢板箍 RC 短柱抗震性能研究[J].哈尔滨工业大学学报,2006,38(1):140-144.

[6] 郭子雄,张杰,李传林.预应力钢板箍加固高轴压比框架柱抗震性能研究[J].土木工程学报,2009,42(12):112-117.

[7] 李传林.预应力钢板箍加固高轴压比 RC 短柱抗震性能研究[D].泉州:华侨大学,2007.

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