EXPERIMENTAL STUDY ON SEISMIC BEHAVIOR OF PRESTRESSED HIGH-STRENGTH CONCRETE BEAMS

Chong Xun; Ye Xianguo; Jiang Qing; Jiang Ye; Huang Xiaokun; Liu Gang

doi:10.13204/j.gyjz201211005

Volume 42 Issue 11

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2012 > 42(11): 22-26,48

Wang Qingli, Liu Xiaochen, Li Qinggang, Wang Yue. STATIC PERFORMANCE OF THE HIGH-PERFORMANCE CONCRETE FILLED STEEL TUBULAR FLEXURAL MEMBER(Ⅰ): EXPERIMENTAL STUDY AND FINITE ELEMENT SIMULATION[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(3): 13-17,29. doi: 10.13204/j.gyjz201303003

Citation:

Chong Xun, Ye Xianguo, Jiang Qing, Jiang Ye, Huang Xiaokun, Liu Gang. EXPERIMENTAL STUDY ON SEISMIC BEHAVIOR OF PRESTRESSED HIGH-STRENGTH CONCRETE BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(11): 22-26,48. doi: 10.13204/j.gyjz201211005

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EXPERIMENTAL STUDY ON SEISMIC BEHAVIOR OF PRESTRESSED HIGH-STRENGTH CONCRETE BEAMS

doi: 10.13204/j.gyjz201211005

1.
1. School of Civil Engineering,Hefei University of Technology,Hefei 230009,China;
2.
2. Key Laboratory of Structural Engineering and Vibration of China Education Ministry,Department of Civil Engineering,Tsinghua University,Beijing 100084,China;
3.
3. China Academy of Building Research,Beijing 100013,China

Rev Recd Date: 2012-08-10
Publish Date: 2012-11-20

Abstract

Abstract

Seismic behavior of the prestressed high strength concrete beams was studied based on the low-cycle reversed load test of three prestressed concrete beams,for which the strength grade of the concrete,mild steel and prestressing strand were C80,HRBF500 and 1 860 MPa separately.The test results indicated that the main failure mode of the specimens was that the compression concrete at the top side crushed severely,while the tension reinforcing bars and prestressing strands were not broken; crushing of the high strength concrete was more sudden,inducing that strength decrease of the specimens was relatively rapid; the load-deflection hysteresis loops were fatter,and the specimens had enough energy dissipation capacity; The yielding and ultimate strength of the specimens increased with the reinforcing ratio,while the ductility factor was just the opposite; with the medium conversion reinforcing ratio,the test specimens had certain deformation capacity under reversed load; the prestressed high strength concrete beams had preferable displacement restoring capacity.Reducing the prestressed intensity was helpful to increase the energy dissipation capacity of the prestressed high strength concrete beams．
- high strength concrete,
- high strength reinforcement,
- beam,
- prestress,
- seismic behavior,
- low-cycle reversed load test

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References(7)

References

[2] Wonchang Choi．Flexural Behavior of Prestressed Girder with High Strength Concrete[D].Raleigh: North Carolina State University，2006.

张利梅，赵顺波，黄承逵．预应力高强混凝土梁延性性能分析与试验研究[J].工程力学，2005，22(3): 166－171.

[3] 薛伟辰，程斌，李杰．预应力与非预应力高性能混凝土梁抗震性能试验研究与有限元分析[J].建筑结构学报，2004，25(1): 1－16.

[4] Liu Haibo，Xiang Tianyu，Zhao Renda.Research on Non-linear Structural Behaviors of Prestressed Concrete Beams Made of High Strength and Steel Fiber Reinforced Concretes [J].Construction and Building Materials，2009(23): 85－95.

[5] 宋永发，宋玉普，许劲松.重复荷载作用下无粘结部分预应力高强混凝土梁变形及延性试验研究[J].中国公路学报，2001，14 (3): 44－50.

[6] JGJ 1402004 预应力混凝土结构抗震设计规程[S].

[7] JGJ 10196 建筑抗震试验方法规程[S].

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