隔震層構(gòu)造不規(guī)范對隔震結(jié)構(gòu)減震性能影響研究*
杜永峰1,2，朱翔1，胡麟1
- 摘 要
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（1 蘭州理工大學防震減災(zāi)研究所， 蘭州 730050；2 蘭州理工大學西部土木工程防災(zāi)減災(zāi)教育部工程研究中心， 蘭州 730050）［摘要］為研究隔震層構(gòu)造不規(guī)范對隔震結(jié)構(gòu)減震性能的影響，以隔震層構(gòu)造不規(guī)范結(jié)構(gòu)為研究對象，建立雙向水平地震作用下的運動方程。用SAP2000軟件建立分析模型，對7種常見的隔震構(gòu)造不規(guī)范現(xiàn)象產(chǎn)生的動力響應(yīng)原理進行定量化分析。對各種構(gòu)造不規(guī)范下結(jié)構(gòu)頂層加速度及層間位移的響應(yīng)峰值進行對比。用時程分析法對比分析了非隔震結(jié)構(gòu)、隔震結(jié)構(gòu)及隔震層構(gòu)造不規(guī)范結(jié)構(gòu)三者上部結(jié)構(gòu)的地震響應(yīng)。結(jié)果表明，隔震層構(gòu)造不規(guī)范嚴重影響隔震結(jié)構(gòu)的減震效果。［關(guān)鍵詞］隔震層; 構(gòu)造; 地震響應(yīng); 對比分析中圖分類號：TU352.12 文獻標識碼：A 文章編號：1002-848X(2013)21-0074-04Study on effect of irregularities of isolation layer on performance of isolation structuresDu Yongfeng1,2, Zhu Xiang1, Hu Lin1（1 Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou 730050, China; 2 Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China）Abstract: In order to study the effect of irregularities of isolation layer on isolation performance of isolation structures, the equation of motion under the bidirectional horizontal seismic was established. The analytical model was set by SAP2000 finite element analysis software. Quantitative analyses were made on the dynamic response of seven kinds of inaccurate isolation structures. Comparisons were made on response peaks of the top floor acceleration and interlayer displacement in different conditions of inaccurate structures. Time history analysis method was used to analyze the seismic responses of non-isolated structure, isolation structure and inaccurate isolation structure. The results show that the irregularities of isolation layer affect the isolation performance seriously.Keywords: isolation layer; construction; seismic response; comparative analysis*國家自然科學基金（50978130，51178211）。作者簡介：杜永峰，博士，教授，博士生導(dǎo)師，Email：178364214@qq.com。參考文獻［1］郭小冬,王志濤,吳樹森.建筑隔震構(gòu)造與施工要求［J］.工程質(zhì)量，2010,28(2):48-50.［2］周瑋.基礎(chǔ)隔震中的建筑構(gòu)造［J］.東南大學學報：自然科學版,2002,32(6):969-972.［3］劉云濤,楊雅靜. 基礎(chǔ)隔震結(jié)構(gòu)的管線處理［J］.山西建筑，2010，36(22)：55-56.［4］王朝暉,汪夢甫.雙向水平地震作用下非對稱框架結(jié)構(gòu)抗震分析簡化方法［J］. 湖南大學學報： 自然科學版，2007,34(4):1-4.
