Torsion strengthening of RC beams with carbon fibre composites

被引：2

作者：

Holtz Silva Filho, J. J. ^{[1
]}

de Souza Sanchez Filho, E. ^{[2
]}

de Souza Lima Velasco, M. ^{[1
]}

机构：

[1] PUC Rio, Rio De Janeiro, Brazil

[2] Univ Fed Fluminense, BR-24220000 Niteroi, RJ, Brazil

来源：

STRUCTURAL CONCRETE | 2010年 / 11卷 / 04期

关键词：

REINFORCED POLYMER;

D O I：

10.1680/stco.2010.11.4.181

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents the results of an experimental and theoretical study designed to evaluate the behaviour of reinforced concrete beams subjected to torsion and strengthened with carbon fibre composites. A total of seven beams, each with the dimensions 200 x 400 x 4200 mm, were tested. Test results reveal marked increases in the torsion capacity of 38% and 40% for each series of beams. The effective axial stress of a theoretical model for bonding the carbon fibre composites is incorporated in the space truss with softening model. The predictions of this proposed model are then compared with tests results. A high degree of agreement is verified between the experimental and theoretical values. [doi: 10.1680/stco.2010.11.4.181]

引用

页码：181 / 190

页数：10

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