Articles

Test of Concrete Strength of the Bridge Structure Based on the Gluing Pull-out Method

  • LU Yigang;PENG Hui;TANG Teng;HUANG Hao;XU Kang
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  • School of Civil Engineering and Architecture, Changsha University of Science & Technology, Changsha 410004, China

Received date: 2010-12-15

  Revised date: 2011-05-11

  Online published: 2011-08-08

Abstract

In the inspection of bridge structures, the use of the gluing pull-out method for the concrete strength can avoid not only the serious damage to the structures as would occur by using the structural damage detection method, but also the disadvantages of the conventional nondestructive methods, such as the rebound law, such as poor precision. In order to use the gluing pull-out method in the real structures more conveniently, an organic anchorage is employed as the anchoring gum and through comparison, a reusable tensile steel anchoring pull system is designed. The results show that better precision results can be obtained by using this method. Using the statistical analysis method and the least squares method for the pulling forces for a number of two-way reinforced concrete slab and for the corresponding compressive strength of concrete test cubes, the curves of strength against pulling force for the bridge structure are obtained. The results show that better correlations and smaller relative standard deviations can be achieved. The gluing pull-out method is also used in the field exposure tests of two prestressed concrete beams by using the strength curves. The results show that the calculated values are in good agreement with the experimental values.

Cite this article

LU Yigang;PENG Hui;TANG Teng;HUANG Hao;XU Kang . Test of Concrete Strength of the Bridge Structure Based on the Gluing Pull-out Method[J]. Science & Technology Review, 2011 , 29(22) : 64 -67 . DOI: 10.3981/j.issn.1000-7857.2011.22.010

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