附加常规摩擦阻尼器的自复位交错层积竹摇摆墙试验研究  

EXPERIMENTAL RESEARCH ON SELF-CENTERING CLB ROCKING WALL EQUIPPED WITH CFD

作　　者：黄明 刘烨 丁一 吕清芳[3] HUANG Ming;LIU Ye;DING Yi;LYU Qingfang(Architectural Design and Research Institute of Southeast University,Nanjing 210096,China;Key Laboratory of Deep Underground Science and Engineering(Ministry of Education),College of Architecture and Environment,Sichuan University,Chengdu 610065,China;School of Civil Engineering,Southeast University,Nanjing 211189,China)

机构地区：[1]东南大学建筑设计研究院有限公司,南京210096 [2]四川大学建筑与环境学院深地科学与工程教育部重点实验室,成都610065 [3]东南大学土木工程学院,南京211189

出　　处：《工业建筑》2021年第10期40-46,61,共8页Industrial Construction

基　　金：国家自然科学基金面上项目(51978152);贵州省科技计划项目([2020]1Y418)。

摘　　要：对单层单跨的附加常规摩擦阻尼器(CFD)的自复位交错层积竹(CLB)摇摆墙结构进行低周反复加载试验,得到了试验墙体的损伤模式、滞回曲线及骨架曲线,并对其刚度退化问题进行了探究。试验结果表明:附加CFD的摇摆墙主体未发生较大的破坏,试件的损伤模式主要为上部连接件和预应力筋锚固垫板处竹材的碎裂。试件不设置阻尼器时滞回曲线近似呈双线性,设置阻尼器后滞回曲线呈"旗帜型",且随着弯矩贡献比的减小,滞回曲线愈加饱满。试件在经历了二次加载后仍具有较好的强度,但其在不经过修复受到二次加载时,刚度会发生下降。Low-cycle repeated loading tests were carried out on the single-story single-span CLB rocking wall which is equipped with CFD,hysteretic curves and skeleton curves were drawn,and the problem of stiffness degradation was investigated. Based on the test results,the main body of rocking wall equipped with CFD was not damaged significantly,and the damage mode of the specimen was mainly the fracture of the bamboo material at the upper joint and the pre-stressed reinforcement anchor plate. The delayed hysteresis curve of the specimen without setting the damper was approximately bilinear,and the hysteresis curve after setting the damper was“flag shaped”. Moreover,with the reduction of the moment contribution ratio,the hysteresis curve became more and more full,and the specimen still had a good strength after undergoing secondary loading. Moreover,when the specimen was subjected to secondary loading without repair,the stiffness will decreased.

关 键 词：摇摆墙 交错层积竹(CLB) 摩擦耗能器 自复位 

分 类 号：TU366.1[建筑科学—结构工程]