锈蚀钢筋混凝土墙体压弯承载力试验研究  

Experimental Study on Compression-bending Capacity of Corroded Reinforced Concrete Walls

作　　者：曲福来 刘中良 许哲 赵顺波 QU Fu-lai;LIU Zhong-liang;XU Zhe;ZHAO Shun-bo(School of Civil Engineering and Communication,North China University of Water Resources and Electric Power,Zhengzhou 450045,China;International Joint Research Lab of Eco-building Materials and Engineering of Henan,North China University of Water Resources and Electric Power,Zhengzhou 450045,China)

机构地区：[1]华北水利水电大学土木与交通学院,河南郑州450045 [2]华北水利水电大学河南省生态建材工程国际联合实验室,河南郑州450045

出　　处：《混凝土与水泥制品》2021年第4期32-35,82,共5页China Concrete and Cement Products

基　　金：河南省高等学校重点科研项目(19A560011);河南省重点研发与推广专项(科技攻关)项目(202102310250)。

摘　　要：考虑钢筋种类、混凝土强度、钢筋锈蚀率因素,对10个锈蚀钢筋混凝土墙体试件进行了压弯承载力试验研究。结果表明:钢筋锈蚀对墙体的承载力和挠度均有不同程度的影响;锈蚀钢筋混凝土墙体的承载力计算仍可近似采用平截面假定,但需引入协同工作系数考虑锈蚀钢筋与混凝土黏结滑移的影响;给出了锈蚀钢筋混凝土墙体的压弯承载力计算公式,并通过与试验结果比较,验证了计算公式的适用性。Considering the main parameters of rebar type,concrete strength and corrosion ratio,ten reinforced concrete walls were tested under compression and bending.The results show that the corrosion of rebars has significant effects on the bearing capacity and the deflection of specimens.The assumption of plane cross-section can still be used for calculating the bearing capacity of corroded reinforced concrete walls.The coordination coefficient should be introduced to calculate the rebar stress affected by the bond slip between corroded rebar and concrete.The predicted formulas for the compression-bending capacity of reinforced concrete walls with corroded rebars are put forward,and the applicability is verified by the comparison to experimental results.

关 键 词：锈蚀钢筋 墙体 压弯承载力 协同工作系数 锈蚀率 

分 类 号：TU375[建筑科学—结构工程]