###
DOI:
工程科学与技术:2009,41(3):258-265
本文二维码信息
码上扫一扫!
Rapid Repair of Earthquake Damaged RC Interior Beam wide Column Joints and Beam wall Joints Using FRP Composites
Rapid Repair of Earthquake Damaged RC Interior Beam wide Column Joints and Beam wall Joints Using FRP Composites
摘要
图/表
参考文献
相似文献
本文已被:浏览 1724次   下载 80
    
中文摘要:
中文关键词:
Abstract:This paper studies the seismic performance of FRP strengthened RC interior non seismically detailed beam wide columns and beam wall joints after limited seismic damage. Four eccentric and concentric beam wide column joints and two beam wall joints, initially damaged in a previous study, were repaired and tested under constant axial loads (0.1fc′Ag and 0.35fc′Ag) and lateral cyclic loading. The rapid repair technique developed, aimed to restore the original strength and to provide minimum drift capacity. The repair schemes were characterized by the use of: (a) epoxy injections and polymer modified cementitious mortar to seal the cracks and replace spalled concrete; and (b) glass (GFRP) and carbon (CFRP) sheets to enhance the joint performance. The FRP sheets were effectively prevented against possible debonding through the use of fiber anchors. Comparison between responses of specimens before and after repair clearly indicated reasonable restoration in strength, drift capacity, stiffness and cumulative energy dissipation capacity. All specimens failed with delamination of FRP sheets at beam column joint interfaces. The rapid repair technique developed in this study is recommended for mass upgrading or repair of earthquake damaged beam column joints.
文章编号:20090334     中图分类号:    文献标志码:
基金项目:
作者简介:
引用文本:
LI Bing,LIM Chee Leong.Rapid Repair of Earthquake Damaged RC Interior Beam wide Column Joints and Beam wall Joints Using FRP Composites[J].工程科学与技术,2009,41(3):258-265.
.Rapid Repair of Earthquake Damaged RC Interior Beam wide Column Joints and Beam wall Joints Using FRP Composites[J].Advanced Engineering Sciences,2009,41(3):258-265.