Experimental Research on Shear Property of Steel Bar/Wire Mesh Mortar Strengthening Concrete Beams

Yan Hua Sun; Qiu Dong Chen; Jin Wei Liu; Guang Jing Xiong

doi:10.4028/www.scientific.net/AMM.204-208.3206

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 204-208Experimental Research on Shear Property of Steel...

Experimental Research on Shear Property of Steel Bar/Wire Mesh Mortar Strengthening Concrete Beams

Abstract:

In order to enhance the shear capacity of reinforced concrete (RC) beams more efficiently, a thought to strengthen concrete beams by using steel bar/wire mesh mortar was proposed. A comparison experiment study on shear behavior of two kinds of strengthening RC beams(namely steel bar mat(S)mortar strengthening, and steel bar / wire mesh(SW) mortar strengthening) was carried out. The experimental results show that SW strengthening can keep the advantages of a better dispersion of reinforcement due to the addition of wire mesh, leading to a much higher initial diagonal crack load, and a better control to the crack propagation of the strengthened beams. The initial diagonal cracking load and the shear capacity of SW strengthened beams are 83% and more than 30% higher than those of S strengthened beams respectively, while the reinforcement ratio of the formers is only 22% higher than that of the laters. The working mechanism of SM mortar strengthening was discussed.

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Periodical:

Applied Mechanics and Materials (Volumes 204-208)

Pages:

3206-3212

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.204-208.3206

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Online since:

October 2012

Authors:

Yan Hua Sun, Qiu Dong Chen, Jin Wei Liu, Guang Jing Xiong

Keywords:

Crack Resistance, Ductility, Shear Resistance, Steel Bar/wire Mortar

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