屈曲約束支撐在高層建筑結(jié)構(gòu)加強(qiáng)層中的工程應(yīng)用
楊曉明,徐和財(cái),鄭瑋,鮑蘭軍
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楊曉明,徐和財(cái),鄭瑋,鮑蘭軍(浙江省工業(yè)設(shè)計(jì)研究院, 杭州 310003)[摘要]將屈曲約束支撐應(yīng)用于帶加強(qiáng)層的高層建筑結(jié)構(gòu)中,分析了結(jié)構(gòu)在大震作用下的彈塑性響應(yīng)及構(gòu)件破壞模式,得出了如下結(jié)論:在高層建筑加強(qiáng)層中采用屈曲約束支撐作為其斜腹桿構(gòu)件,有利于防止加強(qiáng)層斜腹桿受壓屈曲破壞并保障核心筒與外框架的協(xié)同工作,是實(shí)現(xiàn)有限剛度加強(qiáng)層與延性破壞機(jī)制的一種有效途徑。[關(guān)鍵詞]屈曲約束支撐; 加強(qiáng)層; 伸臂桁架中圖分類號(hào):TU398.7 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1002-848X(2013)14-0062-05Application of buckling restrained braces in a high-rise structure with strengthened storyYang Xiaoming, Xu Hecai, Zheng Wei, Bao Lanjun(Zhejiang Industry Design and Research Institute, Hangzhou 310003, China)Abstract: With application of buckling restrained braces in a high-rise structure with strengthened story, the elastic-plastic responses and damage modes of the structure under rare earthquake were summarized. Some beneficial conclusions were proposed: buckling restrained brace used as the diagonal brace members in strengthened story of high-rise structurs can prevent buckling failure due to compression and ensure the collaborative work between core wall and frame; it is also on effective way to limit the stiffness of strengthened story and realize the ductile failure mechanism.Keywords: buckling restrained brace; strengthened story; outrigger作者簡(jiǎn)介:楊曉明,學(xué)士,高級(jí)工程師,院主任工程師,院技術(shù)委員會(huì)委員,Email:yxm21@163.com。參考文獻(xiàn)[1]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.[2]徐培福,傅學(xué)怡,王翠坤,等. 復(fù)雜高層建筑結(jié)構(gòu)設(shè)計(jì)[M].北京:中國(guó)建筑工業(yè)出版社,2005.[3]丁鯤.帶耗能減震層的框架核心筒結(jié)構(gòu)抗震性能分析[D].廣州:廣州大學(xué),2007.[4]丁鯤,周云.框架核心筒結(jié)構(gòu)耗能減震層的減震效果分析[J].工程抗震與加固改造,2007,29(3):35-40.[5]徐自國(guó),肖從真,任重翠.結(jié)構(gòu)彈塑性分析對(duì)我國(guó)高層建筑抗震設(shè)計(jì)的啟示[J].建筑結(jié)構(gòu),2011,41(11):41-46.[6]劉濤,李愛群.帶加強(qiáng)層高層建筑地震作用分析與減震研究[J].振動(dòng)與沖擊,2012,31(11):16-21.[7]武蓮霞,余志偉,孫飛飛. 屈曲約束支撐在帶伸臂高層建筑中的應(yīng)用[J].建筑結(jié)構(gòu),2011,41(S1):120-124.
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