稳定锈蚀率下HRB600钢筋与高强混凝土黏结性能的研究  

RESEARCH ON BONDING PROPERTIES OF HIGH-STRENGTH CONCRETE WITH REBAR HRB600 UNDER STABLE CORROSION RATES

作　　者：郭艳红 于本田[1,2,3] 王公胜 孙文 GUO Yanhong;YU Bentian;WANG Gongsheng;SUN Wen(School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;China Railway 14th Bureau Group Co.,Ltd.,Jinan 250014,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;Gansu Academy of Building Research,Lanzhou 730070,China)

机构地区：[1]兰州交通大学土木工程学院,兰州730070 [2]中铁十四局集团有限公司,济南250014 [3]西南交通大学土木工程学院,成都610031 [4]甘肃省建筑科学研究院有限公司,兰州730070

出　　处：《工业建筑》2020年第10期26-31,68,共7页Industrial Construction

基　　金：甘肃省科技支撑计划项目(144GKCA034)。

摘　　要：钢筋锈蚀对钢筋与混凝土黏结性能有较大的影响。为了探究稳定锈蚀率下HRB600级高强钢筋混凝土的黏结性能,对36个稳定锈蚀率下的HRB600与高强混凝土的黏结锚固试件进行中心拉拔试验,分析稳定锈蚀率下HRB600级钢筋与高强混凝土黏结锚固特点以及黏结强度影响因素的变化规律。最后由试验数据推算出相对稳定锈蚀率下黏结性能各个因素的影响规律并拟合出极限黏结强度计算式。Corrosion of steel is an important factor affecting the bonding properties of steel and concrete.In order to explore the bonding properties of reinforced concrete with rebar HRB600 under stable corrosion rates,the pull-out tests were carried out on 36 anchorage specimens of bond between rebar HRB600 and high-strength concrete under stable corrosion rates,and the characteristics of the bonding strength and its influencing factors were analyzed.Finally,the variable laws of influencing factors on the bonding properties were calculated by test data under the relatively stable corrosion rates,and the calculation formula of the ultimate bonding strength was fitted.

关 键 词：HRB600 高强混凝土 稳定锈蚀 黏结锚固 黏结强度 

分 类 号：TU37[建筑科学—结构工程]