EXPERIMENTAL STUDY ON BEHAVIOR OF LONG-TERM BOND-CREEP BETWEEN CORRODED STEEL STRANDS AND CONCRETE

Li Fumin; Yuan Yingshu

doi:10.13204/j.gyjz201202016

Volume 42 Issue 2

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2012 > 42(2): 70-73,18

Li Fumin, Yuan Yingshu. EXPERIMENTAL STUDY ON BEHAVIOR OF LONG-TERM BOND-CREEP BETWEEN CORRODED STEEL STRANDS AND CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(2): 70-73,18. doi: 10.13204/j.gyjz201202016

Citation:

Li Fumin, Yuan Yingshu. EXPERIMENTAL STUDY ON BEHAVIOR OF LONG-TERM BOND-CREEP BETWEEN CORRODED STEEL STRANDS AND CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(2): 70-73,18. doi: 10.13204/j.gyjz201202016

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EXPERIMENTAL STUDY ON BEHAVIOR OF LONG-TERM BOND-CREEP BETWEEN CORRODED STEEL STRANDS AND CONCRETE

doi: 10.13204/j.gyjz201202016

Li Fumin^1,2,
Yuan Yingshu¹

1.
1. School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221008,China;
2.
2. State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China

Received Date: 2010-02-03
Publish Date: 2012-02-20

Abstract

Abstract

To study the influence of steel strands corrosion on the long-term behavior of bond-creep,6 pre-tensioned prestressed concrete beams were fabricated,of which,5 beams were mixed with salt and set in different places to be corroded in different intensity for 47 weeks,and the bond-slip of all the 6 beams was tested periodically through the whole period,and then the time varying curves of bond-slip under prestressing were obtained.The results show that under the condition of no corrosion crack,the bond strength increases with corrosion and the bond-creep is restrained,which contribute the creep slip of corrosion beams being less than that of the uncorrosion beam.Moreover,with the increase of corrosion rate and corrosion products expansion ratio,the long-term bond-slip decreases.The analysis shows that if there are corrosion cracks and the bond strength deteriorates,the long-term bond-creep and the load cracks width in anchoring segments should increase,but the prestressing loss and the anchoring bearing capacity should not decrease.
- prestressed concrete structures,
- durability,
- corrosion of steel strand,
- bond,
- creep

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References(15)

References

A1-Sulaimani G J,Kaleemullah M,Basunbul I A. Influence of Corrosion and Cracking on Bond Behaviour and Strength of Reinforced Concrete Members[J].ACI Structural Journal,1990,(02):220-231.

王林科,陶峰,王庆霖. 锈后钢筋混凝土粘结锚固的试验研究[J].工业建筑,1996,(04):14-16.

袁迎曙,余索,贾福萍. 锈蚀钢筋混凝土的粘结性能退化的试验研究[J].工业建筑,1999,(11):47-50.

范颖芳,黄振国,李健美. 受腐蚀钢筋混凝土构件中钢筋与混凝土粘结性能研究[J].工业建筑,1999,(08):49-51.

Stanish K,Hooton R D,Pantazopoulou S J. Corrosion Effects on Bond Strength in Reinforced Concrete[J].ACI Structural Journal,1999,(06):915-921.

潘振华,牛荻涛,王庆霖. 锈蚀率与极限粘结强度关系的试验研究[J].工业建筑,2000,(05):10-12.

Cao Jing-yao,Chung D D L. Degradation of the Bond Between Concrete and Steel Under Cyclic Shear Loading, Monitored by Contact Electrical Resistance Measurement[J].Cement and Concrete Research,2001,(31):669-671.

李斌,何鲜峰,罗志敏. 锈蚀对钢筋混凝土粘结力的影响[J].工业建筑,2001,(05):12-13.

赵羽习,金伟良. 锈蚀钢筋与混凝土粘结性能的试验研究[J].浙江大学学报,2002,(04):352-356.

Lee Han-Seung,Noguchi T,Tomosawa F. Evaluation of the Bond Properties Between Concrete and Reinforcement as a Function of the Degree of Reinforcement Corrosion[J].Cement and Concrete Research,2002,(32):1313-1318.

Fang Congqi,Lundgren K,Chen Liuguo. Corrosion Influence on Bond in Reinforced Concrete[J].Cement and Concrete Research,2004,(34):2159-2167.

Benmokrane B,Zhang Burong,Chennouf A. Tensile Properties and Pullout Behaviour of AFRP and CFRP Rods for Grouted Anchor Applications[J].Construction and Building Materials,2000,(03):157-170.

Haskett M,Oehlers D J,Mohamed All M S. Local and Global Bond Characteristics of Steel Reinforcing Bars[J].Engineering Structures,2008,(02):376-383.

GB 50010-2002.混凝土结构设计规范[S].

李富民. 锈蚀混凝土构件的承载性能评估与设计[M].北京:中国铁道出版社,2010.

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