Shear and flexural strengthening of R/C beams with carbon fiber sheets

被引：215

作者：

Norris, T ^{[1
]}

Saadatmanesh, H ^{[1
]}

Ehsani, MR ^{[1
]}

机构：

[1] UNIV ARIZONA,DEPT CIVIL ENGN & ENGN MECH,TUCSON,AZ 85721

来源：

JOURNAL OF STRUCTURAL ENGINEERING-ASCE | 1997年 / 123卷 / 07期

关键词：

D O I：

10.1061/(ASCE)0733-9445(1997)123:7(903)

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The results of an experimental and analytical study of the behavior of damaged or understrength concrete beams retrofitted with thin carbon fiber reinforced plastic (CFRP) sheets are presented. The CFRP sheets are epoxy bonded to the tension face and web of concrete beams to enhance their flexural and shear strengths. The effect of CFRP sheets on strength and stiffness of the beams is considered for various orientations of the fibers with respect to the axis of the beam. Nineteen beams were fabricated, loaded beyond concrete cracking strength, and retrofitted with three different CFRP systems. The beams were subsequently loaded to failure. Different modes of failure and gain in the ultimate strength were observed, depending on the orientation of the fibers.

引用

页码：903 / 911

页数：9

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