Behavior of Damaged Reinforced Concrete Beams Strengthened with Externally Bonded Steel Plate

Author:

Al-Hassani H. M.,Al-Ta’an S. A.,Mohammed A. A.

Abstract

Flexural strength and deformation of reinforced concrete beams strengthened with steel plates were studied in this paper. For bonding the steel plate to the beam a technique of welding steel plate to the stirrups was followed. Fifteen beams were cast and tested; nine beams were strengthened by steel plates preloaded with a fraction of the ultimate load of the control beams (three beams) and then tested to failure. Another three beams were cast and tested to failure also, strengthened and then retested to failure. The test results indicated that the process of welding is successful and can furnish the state of composite action. After strengthening, the ultimate load was increased by 1 to 17 % and by 70 to 94 % for beams strengthened with 1 mm thick and 3 mm thick steel plates, respectively. The effect of cracking due to preloading on the flexural behavior of strengthened beams was found to be not significant.

Publisher

Tikrit University

Reference10 articles.

1. ACI 440 Committee, 1996, “State-of- the-Art Report on Fiber Reinforced Plastic (FRP) Reinforcement for Concrete Structures”, ACI 440R-96, American Concrete Institutes, 68 pp.

2. Ganga Rao, H. V. S., and Vijay, P. V., 1993, “Bending Behavior of Concrete Beams Wrapped with Carbon Fabric” , J. Struct. Eng., Vol. 124, No. 1, pp. 3-10

3. Duthinh, D. and Starnes, M., 2001, “Strengthening of Reinforced Concrete Beams with Carbon FRP”, Composites in Constructions, edited by Figueiras et. al., pp. 493-498

4. Balendran, R. V., Nadeem, N., Maqsood, T. and Rana, T. M., 2001, ” A Parametric Study on the Flexural Behavior of Plain Concrete Beams Strengthened by Externally Bonded Plates”, Proceedings of the 26thConference on our World in Concrete and Structures, pp.173-182

5. Ramana, V. P. V., Kant, T., Morton, S. E., Dutta, P. K., Mukherjee, A. and Desai, Y. M., 2000, “Behavior of CFRPC Strengthened Reinforced Concrete Beams with Varying Degrees of Strengthening”, Composites, Part B 31, pp. 461-470

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3