[1]赵更歧,余刚..框架梁负弯矩区粘钢加固锚固方法试验研究[J].郑州大学学报(工学版),2013,34(02):76-79.[doi:10.3969/j.issn.1671-6833.2013.02.020]
　ZHAO Geng-qi,YU Gang.Experimental Study of Anchoring Methods on Negative Moment Area ofRCBeam Strengthened by Gluing Steel Plates[J].Journal of Zhengzhou University (Engineering Science),2013,34(02):76-79.[doi:10.3969/j.issn.1671-6833.2013.02.020]
点击复制

框架梁负弯矩区粘钢加固锚固方法试验研究()
分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34卷
期数:
2013年02期
页码:
76-79
栏目:
出版日期:
2013-03-28

文章信息/Info

Title:
Experimental Study of Anchoring Methods on Negative Moment Area ofRCBeam Strengthened by Gluing Steel Plates
作者:
赵更歧; 余刚.
郑州大学土木工程学院,河南郑州,450001, 郑州大学土木工程学院,河南郑州,450001
Author(s):
ZHAO Geng-qi; YU Gang
School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China
关键词:
粘钢加固;  钢筋混凝土框架;  负弯矩区;  锚固方法
Keywords:
strengthening by externally bonded steel plate; reinforced concrete frame;  negative moment area; anchoring method
分类号:
TU375.1
DOI:
10.3969/j.issn.1671-6833.2013.02.020
文献标志码:
A
摘要:
为研究L型钢板在转角处不同锚固措施以及柱上箍板下边缘距梁顶不同距离时对梁端负弯矩区的加固效果,设计制作了三榀H型框架梁,对2个梁端配筋不足的梁采用4种不同的锚固方法进行粘钢加固,并将加固梁与全配筋的对比梁进行对比,分析了在静载作用下采用4种不同锚固方式粘钢加固的梁端负弯矩区的受拉钢筋应变、钢板应变以及跨中挠度的发展规律.试验结果表明,钢板转角处的刚度和梁、柱在转角处箍板的锚固强度是影响锚固效果的主要因素,增强钢板转角处的刚度能更好地发挥钢板的能力,实际加固效果也更能接近设计要求.
Abstract:
Based on the results of the static loading test on the four RC Beam - column’s Joints Strengthenedby gluing steel plates and the two RC Beam - column ’s Joints without being strengthened by gluing steelPlates,the strain of the tensile steel and the strain of steel plates in the negative moment region of the girderends and the deflection of midspan with four different kinds of anchoring methods under the action of the staticload are analyzed. The results show that the corner stiffness of the steel plate and beams and the strength of theHoop board in the corner of columns are the main factors leading to different anchor effect in the test,and in-creasing the corner stiffness of the steel plate can fulill to the ability of the steel plate better，and the actualreinforcement effect can also better satisfy the design requirement of reinforcement effect.
更新日期/Last Update: 1900-01-01