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黨育，劉營(yíng)科

 (蘭州理工大學(xué)土木學(xué)院， 蘭州 730050)

 

［摘要］針對(duì)超長(zhǎng)隔震結(jié)構(gòu)在溫度和收縮效應(yīng)下的變形問(wèn)題，實(shí)測(cè)一個(gè)長(zhǎng)94.2m的隔震工程，發(fā)現(xiàn)該結(jié)構(gòu)在施工期間，部分隔震支座的變形超過(guò)安裝容許誤差。用變形分配法求得該結(jié)構(gòu)在年溫差和收縮效應(yīng)下的變形。結(jié)果表明，層間變形主要集中在隔震層處，端部隔震支座的變形最大，且與實(shí)測(cè)數(shù)據(jù)相比，計(jì)算結(jié)果偏于保守。由此以最不利隔震支座在溫度和收縮作用下的變形滿足容許位移的要求，按建筑物的熱工設(shè)計(jì)區(qū)域和建筑使用情況，給出了鋼筋混凝土框架隔震結(jié)構(gòu)伸縮縫間距。

［關(guān)鍵詞］超長(zhǎng)隔震結(jié)構(gòu)； 溫度作用； 收縮效應(yīng)； 變形； 伸縮縫

中圖分類號(hào)：TU311      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2013)13-0042-04

 

Dang Yu, Liu Yingke

 (School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

 

Abstract: As to the deformation of overlong isolated buildings under temperature and shrinkage effects, a 94.2m isolated building was tested, in which the deformation of some isolators was found to exceed installing allowed deviation in construction. Deformation distribution method was used to calculate the deformation due to annual temperature variation and concrete shrinkage. Results show that the drift is concentrated in the isolated layers and the deformation of the end isolator is the largest.Compared with the tested results,the calculated results are conservative. According to the control of maximum deformation of isolated layers under temperature and concrete shrinkage, the distance of expansion joints of the reinforced concrete frame isolated buildings were proposed according to the buildings thermal design region and architectural functions.

Keywords: overlong isolated building; temperature; shrinkage; deformation; expansion joint

作者簡(jiǎn)介：黨育，博士，副教授，Email:601363791@qq.com。

 

［1］王琦明,黎海南,李慧，等. 超長(zhǎng)混凝土基礎(chǔ)隔震結(jié)構(gòu)溫度應(yīng)力分析［J］. 工程抗震與加固改造, 2010,32(5):116-120.

［2］施衛(wèi)星, 孫黃勝,李振剛. 上海國(guó)際賽車場(chǎng)新聞中心高位隔震研究［J］. 同濟(jì)大學(xué)學(xué)報(bào)：自然科學(xué)版, 2005, 33(12):1576-1580.

［3］王可怡, 陳大賓, 郭曼麗,等. 隔震支座在鋼結(jié)構(gòu)施工過(guò)程中的變形與服役監(jiān)測(cè)［J］. 建筑結(jié)構(gòu), 2010, 30(8):21-25.

［4］GB 50011—2010建筑抗震設(shè)計(jì)規(guī)范［S］. 北京:中國(guó)建筑工業(yè)出版社, 2010.

［5］王鐵夢(mèng). 工程結(jié)構(gòu)裂縫控制［M］.北京:中國(guó)建筑工業(yè)出版社,1997.

［6］GB 50010—2010混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］. 北京: 中國(guó)建筑工業(yè)出版社, 2011.

［7］GB 20688.3—2006 橡膠支座 第3部分：建筑隔震橡膠支座［S］.北京: 中國(guó)建筑工業(yè)出版社, 2006.

［8］GB 50176—93民用建筑熱工設(shè)計(jì)規(guī)范［S］.北京:中國(guó)建筑工業(yè)出版社, 1993.