全轻页岩陶粒混凝土与钢筋粘结性能试验研究  

Experimental study on bonding performance of all-light shale ceramsite concrete and steel bar

作　　者：周超 曹国辉[2] 张再华[2] 朱海航 何杰 ZHOU Chao;CAO Guohui;ZHANG Zaihua;ZHU Haihang;HE Jie(School of Civil Engineering,Changsha University of Science&Technology,Changsha,Hunan 410000,China;School of Civil Engineering,Hunan City University,Yiyang,Hunan 413000,China)

机构地区：[1]长沙理工大学土木工程学院,长沙410000 [2]湖南城市学院土木工程学院,湖南益阳413000

出　　处：《湖南城市学院学报（自然科学版）》2022年第6期9-13,共5页Journal of Hunan City University:Natural Science

基　　金：湖南省自然科学基金项目(2021JJ50139)。

摘　　要：本文对36个拔出试件进行了拉拔试验,研究了全轻页岩陶粒混凝土与钢筋的粘结性能,并提出了适用于计算全轻页岩陶粒混凝土与带肋钢筋极限粘结强度的改进表达式.研究结果表明:当锚固长度为5倍钢筋直径时,HRB400、HRB500钢筋与全轻页岩陶粒混凝土的极限粘结强度无明显区别;钢筋直径越大,极限粘结强度越低;利用改进后的全轻页岩陶粒混凝土与带肋钢筋极限粘结强度表达式计算所得理论值与实测值吻合较好.In this paper, 36 pull-out specimens were tested to study the bonding performance between all-light shale ceramsite concrete and ribbed steel bars, and an improved formula for calculating the ultimate bonding strength between all-light shale ceramsite concrete and ribbed steel bars was presented. The research results show that when the anchorage length is 5 times of the rebar diameter, the ultimate bond strength between HRB400, HRB500 steel bars and all-light shale ceramsite concrete has no significant difference;the larger the steel bar diameter, the lower the ultimate bond strength. The theoretical value of the revised calculation method for the ultimate bond strength between all-light shale ceramsite concrete and ribbed steel bars is in good agreement with the measured value.

关 键 词：全轻页岩陶粒混凝土 拔出试件 极限粘结强度 钢筋直径 

分 类 号：TU528.2[建筑科学—建筑技术科学]