某框架剪力墙结构锈蚀钢筋力学性能及粘结强度损失鉴定分析  

Appraisal Analysis on Mechanical Properties and Loss of Bond Strength of Corroded Steel Bars in a Frame Shear Wall Structure

作　　者：谭玮 屈建民 刘方亮 王云洋 杨光 孙胜伟 TAN Wei;QU Jianmin;LIU Fangliang;WANG Yunyang;YANG Guang;SUN Shengwei(Hunan Bolian Engineering Testing Co.,Ltd.,Changde Hunan 415000,China;School of Civil and Architecture Engineering,Hunan University of Arts and Science,Changde Hunan 415000,China;China Construction Second Engineering Bureau Co.,Ltd.,Beijing 100054,China;School of Civil Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]湖南博联检测集团有限责任公司,湖南常德415000 [2]湖南文理学院土木建筑工程学院,湖南常德415000 [3]中国建筑第二工程局有限公司,北京100054 [4]同济大学土木工程学院,上海200092

出　　处：《工程质量》2024年第9期20-24,共5页Construction Quality

基　　金：常德市武陵区2021年度科学技术研究与开发项目(29);中国建筑股份有限公司资助课题(CSCEC-2021-Q-56);中国建筑第二工程局有限公司资助课题(2021ZX000004)。

摘　　要：钢筋锈蚀将影响其与混凝土之间的粘结强度,并对钢筋混凝土结构的安全性及耐久性产生影响。论文以某钢筋混凝土框架剪力墙结构为例,从锈蚀钢筋的外观质量、力学性能、锈蚀钢筋与混凝土之间的粘结强度等方面进行了检测和试验分析,并和同规格的未锈蚀钢筋性能进行对比。结果表明,该工程钢筋锈蚀引起的钢筋重量偏差及力学性能指标损失值均在规范允许的范围之内,经除锈处理后可继续使用。该工程钢筋锈蚀对钢筋与混凝土之间的粘结强度无明显影响,但应对锈蚀钢筋作除锈处理。本文为类似工程问题的处理提供了技术参考。Rust of steel bars will affect their bonding strength with concrete and have an impact on the safety and durability of reinforced concrete structures.The surface quality,mechanical properties,and bond strength between corroded steel bars and concrete is tested and analyzed based on a frame shear wall structure.The results indicate that the weight deviation and decreased mechanical properties caused by corrosion of the steel bars are within the range of the specifications.The corroded steel bars can be used after derusting.Rust of steel bars has no significant impact on the bonding strength between steel bars and concrete.However,rust of the steel bars should be removed.This paper offers suggestion on similar engineering problems.

关 键 词：钢筋锈蚀 力学性能 粘结强度 鉴定 

分 类 号：TU375[建筑科学—结构工程]