基于可靠度理論的屈曲約束支撐節(jié)點連接設(shè)計原則
李國強，郭小康
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(同濟大學(xué)建筑工程系，上海 200092)［摘要］根據(jù)同濟大學(xué)采用國產(chǎn)低碳鋼和低屈服點鋼開發(fā)研制的TJI型與TJII型屈曲約束支撐的大量試驗結(jié)果，應(yīng)用統(tǒng)計分析與可靠度理論，確定了上述屈曲約束支撐節(jié)點連接設(shè)計的原則。給出了目標(biāo)可靠度指標(biāo)為3-2，屈曲約束支撐核心采用不同鋼材時，各種節(jié)點連接形式的設(shè)計安全系數(shù)。［關(guān)鍵詞］屈曲約束支撐;節(jié)點連接設(shè)計;目標(biāo)可靠度;安全系數(shù)Determination of design principle of buckling restrained brace connection using reliability theoryLi Guoqiang， Guo Xiaokang(Deptartment of Structural Engineering，Tongji University，Shanghai 200092，China)Abstract:Based on testing and statistic results of TJI and TJII type buckling restrained braces (BRB) produced by using homemade low carbon steel and low yielding point steel, connection design principle of the two types of BRB is determined by using reliability theory. Safety coefficients to design BRB connections are presented with target reliability index 3-2, according to the materials of BRB core element and connection forms.Keywords:buckling restrained brace； connection design； target reliability index； safety coefficient作者簡介：李國強，博士，教授，Email:gqli@#edu.cn。參考文獻［1］胡寶琳.屈曲約束支撐框架抗震設(shè)計的理論和試驗研究［D］.上海:同濟大學(xué),2008.［2］LI GUO-QIANG, SUN FEI-FEI,CHEN SU-WEN, et al. Development of TJ-type buckling-restrained braces and application［C］//Chengdu:International Conference on Earthquake Engineering. The 1st Anniversary of Wenchuan Earthquake, 2009.［3］孫飛飛,劉猛,李國強,等.TJ-I型屈曲約束支撐的試驗研究和數(shù)值模擬［J］.河北工程大學(xué)學(xué)報,2009, 26(1):5-9.［4］趙國藩,曹居易,張寬權(quán)，等.工程結(jié)構(gòu)可靠度［M］.北京:水利水電出版社,1983.［5］DG/TJ08—32—2008上海高層建筑鋼結(jié)構(gòu)設(shè)計規(guī)程［S］.上海:上海市建設(shè)和交通委員會,2008.［6］陳國興,李繼華,夏正中.鋼結(jié)構(gòu)材料強度及截面幾何特性的統(tǒng)計參數(shù)［J］.重慶建筑工程學(xué)院學(xué)報,1985(1).［7］戴國欣.建筑鋼結(jié)構(gòu)可靠性研究與評價［D］.重慶：重慶大學(xué)，2004.［8］李繼華，等.建筑結(jié)構(gòu)概率極限狀態(tài)設(shè)計［M］.北京:中國建筑工業(yè)出版社,1990.
