基础隔震建筑实际地震响应实时监测及分析  

Real-Time Monitoring and Analysis of Seismic Responses of a Base-Isolated Building

作　　者：丁志斌 王良 戴靠山 张世明 朱正言 DING Zhibin;WANG Liang;DAI Kaoshan;Zhang Shiming;Zhu Zhengyan(Department of Civil Engineering,Sichuan University,Chengdu 610065,China;MOE Key Laboratory of Deep Earth Science and Engincering,Sichuan University,Chengdu 610065,China;College of Civil Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]四川大学土木工程系,成都610065 [2]深地科学与工程教育重点实验室,成都610065 [3]同济大学土木工程学院,上海200092

出　　处：《结构工程师》2022年第4期96-104,共9页Structural Engineers

基　　金：四川省科技计划项目(2020YJ0078);中央高校基本科研业务费项目。

摘　　要：隔震建筑在实际地震中的响应是研究其抗震性能的重要参考,通过分析隔震建筑体系(含隔震支座、阻尼器等)在地震作用下的响应数据,有助于提高隔震建筑分析和设计水平。在四川某学校建筑实施了基础隔震加固,同时建立了基础隔震建筑远程实时监测系统,对隔震建筑体系的位移、加速度,以及阻尼器的出力和行程等主要响应参数进行实时监测。自2019年6月以来,监测系统获得了多次地震作用下的结构响应数据,包括2019年宜宾系列地震、2020年成都青白江地震等。首先介绍了该隔震建筑体系及其远程实时监测系统,并基于近期主要地震下的实时监测数据,与数值模拟结果进行对比,分析与讨论实际地震下的隔震建筑体系响应。结果表明,监测系统运行良好,所测数据有效可靠。Structural vibration and bearing working status of base-isolated buildings during earthquakes are important information for seismic performance evaluation of the structure.Actual responses of the building structure,bearings,and dampers under earthquakes are helpful for the improvement of seismic design.In this paper,a base-isolated system(BIS)was adopted to retrofit a school dormitory building in Sichuan Province.Along with the construction,a real-time monitoring system(RMS)was implemented.From June 2019 to February 2020,several earthquakes events in have been successfully recorded by the system.In this paper,the BIS and RMS of the dormitory building were introduced.Analyses and discussions were reported based on the comparison of monitoring data and numerical simulation results.Results show that the monitoring system has been operating well and data collected by the system are reliable.

关 键 词：基础隔震加固 实时监测系统 隔震结构 宜宾地震 地震响应 

分 类 号：TU352.12[建筑科学—结构工程]