EXPERIMENTAL RESEARCH ON PRESTRESS LOSS IN TECHNIQUE OF CONCRETE STRUCTURE STRENGTHENED WITH PRESTRESSED CFRP SHEETS

Yang Yong-xin; Li Qing-wei; Yue Qing-rui

doi:10.13204/j.gyjz200604002

Volume 36 Issue 4

Dec. 2014

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Yang Yong-xin, Li Qing-wei, Yue Qing-rui. EXPERIMENTAL RESEARCH ON PRESTRESS LOSS IN TECHNIQUE OF CONCRETE STRUCTURE STRENGTHENED WITH PRESTRESSED CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(4): 5-8,18. doi: 10.13204/j.gyjz200604002

Citation:

Yang Yong-xin, Li Qing-wei, Yue Qing-rui. EXPERIMENTAL RESEARCH ON PRESTRESS LOSS IN TECHNIQUE OF CONCRETE STRUCTURE STRENGTHENED WITH PRESTRESSED CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(4): 5-8,18. doi: 10.13204/j.gyjz200604002

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EXPERIMENTAL RESEARCH ON PRESTRESS LOSS IN TECHNIQUE OF CONCRETE STRUCTURE STRENGTHENED WITH PRESTRESSED CFRP SHEETS

doi: 10.13204/j.gyjz200604002

1.
Central Research Institute of Building and Construction of MCC Group Beijing 100088

Received Date: 2005-10-20
Publish Date: 2006-04-20

Abstract

Abstract

The technique of concrete structure strengthened with prestressed CFRP sheet is an effective technique with a bright future.Prestress loss is an important problem in this technique.It is analyzed the production mechanism of long loss because of deformation of drawing machine,pasting CFRP sheet,releasing CFRP sheet,and the material's property.In the experiment the prestress loss of releasing CFRP sheet is discussed in detail,relevant factors including prestressed degree,anchorage treatments,and layers of CFRP sheets are analyzed.Finally it is also given the equation of calculating effective prestress and some advice of decreasing the prestress loss.
- prestressed CFRP sheet,
- concrete structure,
- prestress loss

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References(7)

References

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