THE EXPERIMENTAL RESEARCH ON FATIGUE PERFORMANCE OF PRESTRESSED CONCRETE GIRDER WITH HRBF500 STEEL BAR FOR HIGH SPEED RAILWAY

Wang Xinling; Duan Hongwei; LüZhenya

doi:10.13204/j.gyjz201011007

Volume 40 Issue 11

May 2015

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Wang Xinling, Duan Hongwei, LüZhenya. THE EXPERIMENTAL RESEARCH ON FATIGUE PERFORMANCE OF PRESTRESSED CONCRETE GIRDER WITH HRBF500 STEEL BAR FOR HIGH SPEED RAILWAY[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(11): 22-26. doi: 10.13204/j.gyjz201011007

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Wang Xinling, Duan Hongwei, LüZhenya. THE EXPERIMENTAL RESEARCH ON FATIGUE PERFORMANCE OF PRESTRESSED CONCRETE GIRDER WITH HRBF500 STEEL BAR FOR HIGH SPEED RAILWAY[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(11): 22-26. doi: 10.13204/j.gyjz201011007

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THE EXPERIMENTAL RESEARCH ON FATIGUE PERFORMANCE OF PRESTRESSED CONCRETE GIRDER WITH HRBF500 STEEL BAR FOR HIGH SPEED RAILWAY

doi: 10.13204/j.gyjz201011007

1.
School of Civil Engineering,Zhengzhou University,Zhengzhou 450002,China

Received Date: 2010-07-15
Publish Date: 2010-11-20

Abstract

Abstract

In this paper,two high-strength prestressed concrete T girders with HRBF500 steel bar have been designed and made.To compare the measured values and the theoretical values of prestress losses,the measured values of prestress losses are more than its theoretical values.Based on the test result under fatigue load,load-stress curves of HRBF500 steel bar and prestressed steel bar and midspan deflection curves of 2 girders are drawn out,and the fatigue performance of high-strength prestressed concrete girder with HRBF500 steel bar is studied.The result shows that HRBF500 steel bar,prestressing strand and midspan deflection in the girders meet the limits of service stage.It also means that the fatigue performance of the prestressed concrete girders with HRBF500 steel bar can still satisfy design requirements after 2.5 millions circles amplitude fatigue loads on the condition that tensile stress of HRBF500 steel bar is more than 150 MPa.
- research on fatigue performance,
- HRBF500 steel bar,
- prestressed concrete girder,
- experimental research

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References(8)

References

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赵进阶,张钦喜,杨勇新,等.HRBF500 钢筋混凝土梁受弯承载力试验研究[J].工业建筑,2009,39(3):52-55.

[3] 姜昭恒.部分预应力混凝土先张梁动载疲劳试验研究[J].长沙铁道学院学报,1989,7(4):75-86.

[4] 吕海燕,戴公连.铁路混凝土桥梁在疲劳荷载作用下正截面应力试验研究[J].长沙铁道学院学报,2006,14(3):17-23.

[5] 汪小林.预应力混凝土梁的疲劳受力性能研究[D].郑州:郑州大学,2008.

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