基于统计分析的冻融循环作用下钢筋与混凝土粘结强度研究综述  

Research review of bond strength between steel bar and concrete in freeze-thaw cycles based on statistical analysis

作　　者：柴鑫 商怀帅[1,2] 解宗龙 CHAI Xin;SHANG Huaishuai;XIE Zonglong(School of Civil Engineering,Qingdao University of Technology,Qingdao 266011,China;State Key Laboratory of Green Building in Western China,Xi’an 710055,China;No.1 Construction Co.,Ltd.of China Construction Eighth Engineering Bureau,Jinan 250014,China)

机构地区：[1]青岛理工大学土木工程学院,青岛266011 [2]西部绿色建筑国家重点实验室,西安710055 [3]中建八局第一建设有限公司,济南250014

出　　处：《建筑结构》2023年第12期68-73,共6页Building Structure

基　　金：国家自然科学基金(51778310);西部绿色建筑重点实验室(LSKF201909)。

摘　　要：粘结力的存在是钢筋与混凝土共同发挥作用的基础,而冻融循环作用会对二者的粘结强度产生影响。依据已有的冻融循环作用下钢筋与混凝土粘结强度试验数据,通过拟合公式分别分析了冻融循环次数、混凝土抗压强度、混凝土相对保护层厚度以及钢筋直径对粘结强度的影响。最后建立了一个统一的包括多种影响因素在内的粘结强度预测模型,并通过与实际试验数据相比较发现拟合程度较好。The existence of bond is the basis for reinforcing bar and concrete to work together,and the freeze-thaw cycles will affect the bond strength of them.According to the existing experimental data of bond strength between reinforcing bar and concrete under freeze-thaw cycles,the influences of freeze-thaw cycles,concrete compressive strength,concrete relative protective layer thickness and reinforcing bar diameter on bond strength were analyzed by fitting formulas.Finally,a unified bond strength prediction model including a variety of influencing factors was established.By comparing with the actual test data,it is found that the fitting degree is better.

关 键 词：冻融循环 混凝土抗压强度 相对保护层厚度 钢筋直径 粘结强度 

分 类 号：TU528.01[建筑科学—建筑技术科学]