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
收藏
页码：181 / 190
页数：10
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