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Experimental study on flexural behaviour of prestressed concrete hollow slabs strengthened with CFRP

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2 Author(s)
Han Juan ; Southwest University of Science and Technology Civil Engineering and Architecture College Mianyang, China ; Wang Ruheng

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting

The purpose of this paper is to focus on analyzing its flexural behavior and the reinforcement effect under concentrated force at the two points of a symmetrical load after the 21 old and new different degrees of damage to prestressed concrete hollow slab is strengthened with CFRP by the different paste modes and paste quantities. It systematically the ultimate bearing capacity and failure mode after prestressed concrete hollow slab is strengthened. It also analyzes crack developments at failure, varieties of load-displacement curve during loading. The results showed that with concentrated force at the two points of a symmetrical load, its ultimate bearing capacity of different degrees of damage to prestressed concrete slab strengthened with CFRP can effectively improve varying the amount of different degrees, about 11.1%∼84.2%, the strengthening effect is obvious. With technical specification for strengthening concrete structures with carbon fiber reinforced polymer laminate, the conclusion can be drawn that it is more reasonable and economical to adopt respectively the 100 mm width of single-layer double width, the 75 mm width of single-layer three width and the 50 mm width of single-layer four width of CFRP for reinforcement slight damage, moderate damage and severe damage to old and new prestressed concrete hollow slab.

Published in:

E -Business and E -Government (ICEE), 2011 International Conference on

Date of Conference:

6-8 May 2011