摘要
为考察碳纤维布(CFRP)对钢筋混凝土梁加固后抵抗剪力破坏的能力。本文运用ABAQUS软件模拟3种不同方式粘绑CFRP布方法去加固钢筋混凝土梁,剖析在使用CFRP布侧面粘绑式、封闭包裹粘绑式和U型粘绑式情况下,梁的抵抗剪力情况。分析结果表明:采用碳纤维布加固后的钢筋混凝土梁,斜裂缝扩展缓慢,增加了梁抵抗剪力的能力,且粘绑CFRP布封闭包裹式比侧面粘绑式功效更佳,侧面粘绑式比U型粘绑式功效更好。
In order to examine the ability of carbon fiber sheet(CFRP) to resist shear failure of reinforced concrete beams strengthened with CFRP.In this paper,ABAQUS software is used to simulate three different methods of bonding CFRP cloth to reinforce reinforced concrete beams.The shear resistance of beams under the conditions of side bonding,enclosed bonding and U bonding of CFRP cloth is analyzed.The results show that the oblique cracks of reinforced concrete beams strengthened with CFRP sheets expand slowly,which increases the shear resistance of beams.The effect of CFRP sheet bonded encapsulated beams is better than that of side bonded beams,and the effect of side bonded beams is better than that of U bonded beams.
作者
李妍
黄旭
LI Yan;HUANG Xu(School of Civil Engineering,Jilin Jianzhu University,Changchun Jilin 130118,China)
出处
《北方建筑》
2019年第3期15-18,共4页
Northern Architecture
基金
吉林省科技发展计划项目(20170414018GH)
吉林省教育厅项目(JJKH20190871KJ)
