多降雨环境下锈蚀钢筋混凝土柱装配节点抗震性监测  

Seismic resistance monitoring of assembly joints of corroded reinforced concrete columns under heavy rainfall environment

作　　者：孙敏[1] 朱远恒 高鹏真 李振东 方有珍[1] SUN Min;ZHU Yuan-heng;GAO Peng-zhen;LI Zhen-dong;FANG You-zhen(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China;The School of Civil Engineering and Transportation,Hohai University,Nanjing 210000,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011 [2]河海大学土木与交通学院,南京210000

出　　处：《吉林大学学报(工学版)》2024年第12期3545-3551,共7页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(52178149)。

摘　　要：为保障建筑安全,提出了多降雨环境下锈蚀钢筋混凝土柱装配节点抗震性监测方法。首先,分析了多降雨环境造成钢筋混凝土柱锈蚀的原因,并计算了雨水锈蚀造成的钢筋混凝土柱劣化程度。然后,为明确雨水锈蚀对钢筋混凝土柱抗震性造成的影响,参考建筑行业钢筋混凝土结构设计标准构建了4个不同锈蚀程度的钢筋混凝土试件,并将4个试件放置于拟静力试验环境中,通过不同程度载荷的加载,模拟不同震动环境。最后,结合滞回曲线、骨架曲线以及层间位移角的测算,实现了相同震动环境下不同试件的抗震性表现分析。In order to ensure the safety of the building,a method for monitoring the seismic resistance of the assembly joints of corroded reinforced concrete column under heavy rainfall was proposed.Firstly,the reasons for the corrosion of reinforced concrete columns caused by heavy rainfall environment were analyzed,and the deterioration degree of reinforced concrete columns caused by rain rust was calculated.Then,in order to clarify the influence of rain rust on the seismic resistance of reinforced concrete columns,four reinforced concrete specimens with different degrees of corrosion were constructed with reference to the design standards for reinforced concrete structures in the construction industry.The four specimens were placed in a pseudo-static experimental environment,and different vibration environments were simulated by loading different degrees of loads.Finally,by combining the calculation of hysteresis curves,skeleton curves,and inter story displacement angles,the seismic performance analysis of different specimens under the same vibration environment was achieved.

关 键 词：锈蚀劣化 拟静力试验 载荷加载 滞回曲线 骨架曲线 

分 类 号：TU352.11[建筑科学—结构工程]