EXPERIMENTAL STUDY ON THE FLEXURAL BEHAVIOR OF REINFORCED CONCRETE CONTINUOUS BEAMS STRENGTHENED WITH EXTERNAL PRESTRESSING

Wang Yunfei; Meng Shaoping; Liu Xiaoyan

doi:10.13204/j.gyjz200912009

Volume 39 Issue 12

Dec. 2014

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Abstract

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Citation:

Wang Yunfei, Meng Shaoping, Liu Xiaoyan. EXPERIMENTAL STUDY ON THE FLEXURAL BEHAVIOR OF REINFORCED CONCRETE CONTINUOUS BEAMS STRENGTHENED WITH EXTERNAL PRESTRESSING[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(12): 32-35. doi: 10.13204/j.gyjz200912009

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EXPERIMENTAL STUDY ON THE FLEXURAL BEHAVIOR OF REINFORCED CONCRETE CONTINUOUS BEAMS STRENGTHENED WITH EXTERNAL PRESTRESSING

doi: 10.13204/j.gyjz200912009

1.
1. Nanjing Architectural Design &Research Institute Co. ,Ltd,Nanjing 210005,China;
2.
2. Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Nanjing 210096,China

Received Date: 2009-09-12
Publish Date: 2009-12-20

Abstract

Abstract

With a view to different height of compression region and different prestress reinforcement index,6 reinforced concrete continuous beams strengthened with external prestressed tendons are investigated,including midspan deflection,stress increment of external tendons,midspan deflection and stress increment of external tendons have a good correlative relationship,increasing in 3 stages.Internal force redistribution forms fully under ultimate loads.
- external prestressing,
- continuous beam,
- redistribution of internal force,
- stress increment

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References(5)

References

[2] Ayaho Miyamoto.Behavior of Prestressed Beam Strengthened withExternal Tendons[J].Journal of Structure Engineering,2000,126(9):1033-1044.

Harajli M H.Strengthening of Concrete Beams by External Prestressing[J].PCI Journal,1993,38(6):76-88.

[3] Murat Saatcioglu.External Prestressing Concrete Column for ImprovedSeismic Shear Resistance[J].Journal of Structure Engineering,2003,129(8):1057-1070.

[4] Nihal Ariyawardena.Prestressing with Unbonded Internal or ExternalTendons:Analysis and Computer Model[J].Journal of StructureEngineering,2002,128(12):1493-1501.

[5] Xiao Hanwu.Tendon Model for Nonlinear Analysis of ExternallyPrestressed Concrete Structures[J].Journal of Bridge Engineering,2003,129(1):96-104.

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