基于自感知连梁的剪力墙墙肢转角变形识别及其试验验证  

ROTATION IDENTIFICATION OF SHEAR WALL STRUCTURES BASED ON SELF-SENSING COUPLING BEAMS AND TEST VALIDATION

作　　者：单伽锃 潮曦 王律己 钱江[1] SHAN Jia-zeng;CHAO Xi;WANG Lyu-ji;QIAN Jiang(Department of Disaster Mitigation,Tongji University,Shanghai 200092,China;Shanghai Engineering Research Center for Resilient Cities and Intelligent Disaster Mitigation,Shanghai 200092,China)

机构地区：[1]同济大学结构防灾减灾工程系,上海200092 [2]上海韧性城市与智能防灾工程技术研究中心,上海200092

出　　处：《工程力学》2024年第9期91-100,共10页Engineering Mechanics

基　　金：国家自然科学基金项目(51878483);上海市青年科技启明星计划项目(20QC1400700)。

摘　　要：联肢剪力墙作为高层结构重要的抗侧体系,对建筑的震后功能可持续至关重要。近年来,带可更换构件的剪力墙结构体系被学术界提出,并成功应用于国内外高层建筑项目。需要注意的是,作为结构抗震第一道防线的易损高耗能连梁,其震后的快速诊断与更换将决定建筑结构性能与功能恢复效率。该文从带可更换连梁联肢剪力墙结构变形机理出发,基于前期提出的自感知可更换连梁,提出了一种剪力墙墙肢转角变形识别方法,实现对墙肢转角及相邻墙肢转角差等状态的识别。通过大比例剪力墙模拟体的动力加载试验,并与多种试验测量技术进行对比,验证了墙肢转角识别方法的准确性与鲁棒性。As an important lateral resisting system of high-rise structures,the coupled shear wall is crucial to the sustainability of post-earthquake performance of buildings.In recent years,the shear wall structural system with replaceable components has been proposed by academia and successfully applied to high-rise building projects at home and abroad.It should be noted that for the vulnerable and high-energy-consuming coupling beams,which are the first line of defense against earthquakes,the rapid diagnosis and replacement after earthquake determine the performance and functional recovery of the structure.In this paper,starting from the structural deformation mechanism of the shear wall with replaceable coupling beams,and based on the self-sensing replaceable coupling beams proposed earlier,a method for identifying the deformation of the shear wall is proposed to monitor and identify its state,e.g.,the rotation and the rotation difference between the adjoining wall piers.The accuracy and robustness of the proposed method to identify the wall pier rotation are verified by comparing various types of test measurement techniques through a large-scale shear wall simulation model under dynamic loading test.

关 键 词：可更换连梁 状态识别 结构监测 自感知 剪力墙 

分 类 号：P315.9[天文地球—地震学]