- 摘 要
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(1 深圳市市政設計研究院有限公司， 深圳 518029；2 廣州大學工程抗震研究中心， 廣州 510405)
摘要: 采用一棟 122m 高的深圳地鐵常用高層住宅樓作為地鐵車輛段上蓋全框支剪力墻結(jié)構(gòu)的試驗模型，對其縮尺比例為 1 / 20 的結(jié)構(gòu)模型進行模擬地震振動臺試驗。 介紹了模型制作、相似關系的確定方法，測試了模型結(jié)構(gòu)在小震、中震和大震作用下的加速度、位移和應變，并分析了試驗現(xiàn)象和實測數(shù)據(jù)。 結(jié)果表明:小震作用下結(jié)構(gòu)自振頻率僅下降 3%左右，構(gòu)件未出現(xiàn)裂縫，模型結(jié)構(gòu)處于彈性階段；中震作用下，模型無肉眼可見裂縫，結(jié)構(gòu)自振頻率下降 11%左右，結(jié)構(gòu)基本處于彈性階段；大震作用下，結(jié)構(gòu)自振頻率下降 48% ~ 60%，模型結(jié)構(gòu)在 4 層(轉(zhuǎn)換層上第2 層)剪力墻首先出現(xiàn)裂縫，繼而其他構(gòu)件出現(xiàn)裂縫，但模型未發(fā)生倒塌，進入了彈塑性階段，模型結(jié)構(gòu)在各地震水準作用下能夠滿足規(guī)范的抗震性能要求；地震波的頻譜特性對大震下結(jié)構(gòu)彈塑性層間位移角影響較大；全部加載完成后模型結(jié)構(gòu)轉(zhuǎn)換梁和底部框支柱完好，全框支層結(jié)構(gòu)抗震性能較好。
關鍵詞: 全框支剪力墻結(jié)構(gòu)；振動臺試驗；自振頻率；抗震性能；轉(zhuǎn)換梁；框支柱
中圖分類號:TU375 文獻標志碼:A 文章編號:1002￣848X(2022)01￣0070￣08
DOI:10. 19701 / j. jzjg. LS210166
Study on shaking table test of complete frame￣supported shear wall structure for high￣rise buildingabove the depot under simulated earthquakes
OUYANG Rong1， YU Lianggang1， CAO Wei1， CHEN Yangyang2， XU Xi1
(1 Shenzhen Municipal Design and Research Institute Co.， Ltd.， Shenzhen 518029， China；2 Engineering SeismicResearch Center of Guangzhou University， Guangzhou 510405， China)
Abstract: Take a 122m￣high residential building commonly used in Shenzhen metro as the test model of the completeframe￣supported shear wall structure model above the depot， its structure model with a scale of 1 / 20 was subjected to ashaking table test under the simulated earthquakes. The model making and the method of determining the similarityrelationship were introduced. The acceleration， displacement and strain of the model structure under the action of frequent，fortification and rare earthquakes were tested， and the experimental phenomena and measured data were analyzed. Theresults show that the natural frequency of the structure only drops by about 3% under the action of frequent earthquakes，and there are no cracks in the components， and the model structure is in the elastic stage；under the action of fortificationearthquakes， the model has no visible cracks， and the natural frequency of the structure drops by about 11%， and thestructure is basically in the elastic stage；under the action of a rare earthquake， the natural frequency of the structure dropsby 48% ~ 60%， and the model structure has cracks in the shear wall of the 4th floor ( the second layer on the transferfloor)， and then the other components have cracks， but the model does not collapse and enters the elasto￣plastic stage， andthe model structure can meet the seismic performance requirements of the code under the action of various seismic levels；the spectral characteristics of the seismic wave have a greater influence on the elasto￣plastic interlayer displacement angle ofthe structure under the rare earthquakes；the model structure transfer beam after all loading is completed and the bottomtransfer columns are intact， and the full frame￣support structure has good seismic performance.
Keywords:complete frame￣supported shear wall structure；shaking table test；natural frequency；seismic performance；transfer beam；transfer column
第一作者:歐陽蓉，學士，高級工程師，一級注冊結(jié)構(gòu)工程師，主要從事結(jié)構(gòu)設計工作，Email:oyroyr@ sina. com。
[引用本文] 歐陽蓉，余良剛，曹薇，等. 地鐵車輛段上蓋高層全框支剪力墻結(jié)構(gòu)模擬地震振動臺試驗研究[ J].建筑結(jié)構(gòu)，2022，52(1):70￣77. OUYANG Rong， YU Lianggang， CAO Wei， et al. Study on shaking table test of completeframe￣supported shear wall structure for high￣rise building above the depot under simulated earthquakes [ J]. BuildingStructure，2022，52(1):70￣77.
