THE MECHANICAL BEHAVIOR OF CONCRETE PIER STRENGTHENED WITH LATERAL PRE-STRESSED FRP SHEETS

Zhou Changdong; Zhao Feng; Zhang Airong; Zhang Die

doi:10.13204/j.gyjz200904028

Volume 39 Issue 4

Dec. 2014

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Zhou Changdong, Zhao Feng, Zhang Airong, Zhang Die. THE MECHANICAL BEHAVIOR OF CONCRETE PIER STRENGTHENED WITH LATERAL PRE-STRESSED FRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(4): 124-127,132. doi: 10.13204/j.gyjz200904028

Citation:

Zhou Changdong, Zhao Feng, Zhang Airong, Zhang Die. THE MECHANICAL BEHAVIOR OF CONCRETE PIER STRENGTHENED WITH LATERAL PRE-STRESSED FRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(4): 124-127,132. doi: 10.13204/j.gyjz200904028

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THE MECHANICAL BEHAVIOR OF CONCRETE PIER STRENGTHENED WITH LATERAL PRE-STRESSED FRP SHEETS

doi: 10.13204/j.gyjz200904028

1.
School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China

Received Date: 2008-04-06
Publish Date: 2009-04-20

Abstract

Abstract

The pre-tensioning methods of FRP sheets applied to strengthen concrete piers are researched and analyzed.Furthermore.A is presented a unique pre-tensioning technique of FRP sheets is presented to strengthen existing concrete piers.Taking a large-sized concrete pier in a railway bridge for example,the advantages of concrete piers strengthened with pre-stressed FRP sheets are compared with no pre-tensioned FRP sheets.Based on Chinese and American codes,the calculation methods of loading capacity and ductility of concrete piers strengthened with pre-stressed FRP sheets are presented.The calculation results show that the loading capacity and ductility of concrete piers can be improved with pre-stressed FRP sheets.Compared with AFRP sheets,CFRP sheet is more suitable as pre-stressed materials to strengthen concrete structures.
- pre-stressed FRP sheet,
- anchorage method,
- confined concrete,
- mechanical behavior

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References(8)

References

[2] Shahab MEHDIZAD TALEIE,Hasan MOGHADDAM.Experimentaland Analytical Investigation of Square RC Columns Retrofitted withPre-stressed FRP Strips[C]∥8th International Symposiumon FRPReinforcement for Concrete Structures,Greece:2007;

Tetsuo Yamakawa,Mehdi Banazadeh,Shogo Fujikawa.EmergencyRetrofit of Shear Damaged Extremely Short RC Columns Using Pre-tensioned Aramid Fiber Belts[J].Journal of Advanced ConcreteTechnology,2005,3(1):95-106;

[3] Shahab MEHDIZAD TALEIE,Asghar VATANI OSKOUEI.Experimental Investigation of FRP Relaxation and Its Effect on Pre-stressing Techniques[C]∥8th International Symposium on FRPReinforcement for Concrete Structures.Greece:2007;

[4] GB50010-2002混凝土结构设计规范[S];

[5] ACI 318.02.Building Code Requirementsfor Structural Concrete[S].2002;

[6] ACI 440.2R-02.Guide for the Design and Construction of ExternallyBonded FRPSystemsfor Strengthening Concrete Structures[S].2005;

[7] GB50367-2006混凝土结构加固设计规范[S];

[8] 周长东.玻璃纤维聚合物加固混凝土柱的力学性能研究[D].大连:大连理工大学,2003.

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