AN EXPERIMENTAL STUDY ON PRESTRESSED TRANSIMISSION LENGTH FOR PRESTRESSED HELICAL RIBBED BAR

Chen Meng; Fu Ruijia; Wang Baochao; Liu Lixin

doi:10.13204/j.gyjz201307010

Volume 43 Issue 7

Dec. 2014

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Chen Meng, Fu Ruijia, Wang Baochao, Liu Lixin. AN EXPERIMENTAL STUDY ON PRESTRESSED TRANSIMISSION LENGTH FOR PRESTRESSED HELICAL RIBBED BAR[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(7): 39-42. doi: 10.13204/j.gyjz201307010

Citation:

Chen Meng, Fu Ruijia, Wang Baochao, Liu Lixin. AN EXPERIMENTAL STUDY ON PRESTRESSED TRANSIMISSION LENGTH FOR PRESTRESSED HELICAL RIBBED BAR[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(7): 39-42. doi: 10.13204/j.gyjz201307010

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AN EXPERIMENTAL STUDY ON PRESTRESSED TRANSIMISSION LENGTH FOR PRESTRESSED HELICAL RIBBED BAR

doi: 10.13204/j.gyjz201307010

1.
1. School of Civil Engineering,Zhengzhou University,Zhengzhou 450002,China;
2.
2. CABR Technology Co.Ltd,Beijing 100013,China

Received Date: 2012-10-19
Publish Date: 2013-07-20

Abstract

Abstract

The helical ribbed bar is named HR bar.By 20 prestressed transmission length tests of prestressed HR bar, the effect of the main factors(effective prestress of HR bar, concrete tensile strength, diameter of HR bar and stirrup ratio) on prestressed transmission length was analyzed in detail.The analyses showed that the relative prestressed transmission length was proportional to the HR bar effective prestress, and was inversely proportional to the concrete tensile strength.On the basis of the experimental data, and based on the results of bond-anchorage tests of HR bar, the formula of prestressed transmission length for HR bar was proposed.
- prestressed HR bar,
- prestressed transmission length,
- pretensioned method,
- self anchorage

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References(8)

References

GB /T 5223.32005预应力混凝土用钢棒[S].

[2] 徐有邻,周氐.混凝土结构设计规范理解与应用[M].北京:中国建筑工业出版社,2002:55－64.

[3] 徐有邻,谢铁桥.螺旋肋钢丝预应力传递性能的试验研究[J].混凝土与水泥制品,1998(1):31－35.

[4] 蔡绍怀.先张法预应力筋自锚问题及其计算方法[J].建筑学报,1961(2):15－21.

[5] GB 500102010混凝土结构设计规范[S].

[6] Eurocode 2: Design of Concrete Structures( BS EN 1992－1－1:2004( E))[S].

[7] Building Code Requirements for Structural Concrete ( ACI 318－08) and Commentary(2008)[S].

[8] 王宝朝.螺旋槽预应力钢棒的预应力传递长度与黏结锚固性能的试验研究[D].郑州:郑州大学,2012.

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