混合結(jié)構(gòu)T形梁半剛接耗能節(jié)點受力性能試驗研究*
張艷霞1，徐斌2，閔宗軍1，孫文龍1，李云鵬1
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(1 北京建筑大學(xué)工程結(jié)構(gòu)與新材料北京市高等學(xué)校工程研究中心， 北京 100044；2 北京市建筑設(shè)計研究院有限公司， 北京 100045)［摘要］高層鋼-混凝土混合結(jié)構(gòu)體系是近年來在高層和超高層結(jié)構(gòu)中應(yīng)用較為廣泛的一種抗側(cè)力體系，在高層鋼框架-核心筒混合結(jié)構(gòu)抗震設(shè)計中，常常將鋼梁-混凝土墻連接節(jié)點設(shè)計成理想的剛接或鉸接。綜合剛接節(jié)點和鉸接節(jié)點的優(yōu)缺點，提出了能滿足滑模施工工藝的全栓接新型半剛性節(jié)點，并對3個混合結(jié)構(gòu)T形墻梁半剛接耗能節(jié)點試件進(jìn)行了低周往復(fù)荷載試驗。試驗研究表明：該節(jié)點可方便地在實際施工過程中實現(xiàn)；節(jié)點具有較好的延性性能和一定的耗能能力；影響節(jié)點的初始剛度和承載力的主要因素是頂、底角鋼的剛度和強(qiáng)度, 腹板角鋼對其影響較小。頂、底角鋼是半剛性節(jié)點的關(guān)鍵部件且可拆換，能夠滿足“中震可修”的抗震性能目標(biāo)。隨著頂、底角鋼厚度的增加，節(jié)點的屈服彎矩、屈服轉(zhuǎn)角、極限彎矩和極限轉(zhuǎn)角都有明顯的增長。［關(guān)鍵詞］混合結(jié)構(gòu); 鋼梁與混凝土墻體連接節(jié)點; 半剛接節(jié)點; 受力性能; 試驗研究中圖分類號：TU398文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2013)22-0009-06Experimental study on mechanical properties of T-shape beam semi-rigid energy-dissipated joint for steel-concrete hybrid structureZhang Yanxia1, Xu Bin2, Min Zongjun1, Sun Wenlong1, Li Yunpeng1(1Beijing University of Civil Engineering and Architecture, Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijing 100044, China; 2 Beijing Institute of Architectural Design, Beijing 100045, China)Abstract: High-rise steel-concrete hybrid structural system is a kind of lateral resistant system that is widely used in high-rise buildings and super-tall buildings in recent years. In seismic design of high-rise hybrid structure of steel frame and concrete corewall, concrete wall-steel beam joint is usually designed as ideal rigid joint or hinged joint. Considering advantages and disadvantages of rigid joints and hinged joints, a new type of semi-rigid bolted joints was put forward, which can meet the requirement of slip-form construction of concrete wall. In addition, three T-shaped semi-rigid energy-dissipated joint tests under low-cyclic loading were conducted. Results show that the joint can be easily realized in the construction. Besides, it has good ductility capacity and energy dissipation capacity. The major factors that influence the initial rigidity and bearing capacity of joints are the rigidity and strength of top and bottom angle steels, while web angle steels have less influence. Top and bottom angle steels, which are the key components of semirigid joints and easily to replace, can meet the requirements of the performance-based seismic design goals that buildings can be repaired under the moderate earthquake. With the increment of thickness of top and bottom angle steels, yield moment, yield rotation, ultimate moment and ultimate rotation of the joint obviously increase.Keywords: hybrid structure; concrete wall-steel beam joint; semi-rigid joint; mechanical property; experimental study*國家自然科學(xué)基金項目（51278027），北京市優(yōu)秀人才項目（2010D005017000009），工程結(jié)構(gòu)與新材料北京市高等學(xué)校工程研究中心開放基金，BIAD發(fā)展基金科研項目（FJW2011-066）,城鄉(xiāng)建設(shè)與管理產(chǎn)學(xué)研聯(lián)合研究生培養(yǎng)基地培養(yǎng)項目(cxy2012013)。作者簡介：張艷霞，博士，副教授，Email：zhangyanxia@bucea.edu.cn。參考文獻(xiàn)［1］CECS 230∶2008高層建筑鋼\|混凝土混合結(jié)構(gòu)設(shè)計規(guī)程 ［S］.北京:中國計劃出版社，2008.［2］GB 50011—2010 建筑抗震設(shè)計規(guī)范［S］. 北京:中國建筑工業(yè)出版社，2010.［3］SHAHROOZ BAHRAM M, DEASON JEREMY T, TUNC GOKHAN. Outrigger beam-wall connections Ⅰ: Component testing and development of design model ［J］.Journal of Structural Engineering, 2004, 130 (2):253-260.［4］SHAHROOZ BAHRAM M, TUNC GOKHAN, DEASON JEREMY T. Outrigger beam-wall connections Ⅱ: Subassembly testing and further modeling enhancements ［J］. Journal of Structural Engineering, 2004,130(2):262-270.［5］中國建筑標(biāo)準(zhǔn)設(shè)計研究院.01SG519多、高層民用建筑鋼結(jié)構(gòu)節(jié)點構(gòu)造詳圖［S］. 2001.［6］李國強(qiáng)，石文龍，王靜鋒. 半剛性連接鋼框架結(jié)構(gòu)設(shè)計［M］.北京:中國建筑工業(yè)出版社,2009.［7］鄭從立,葉列平. 鋼梁混凝土墻鉸接節(jié)點栓釘預(yù)埋件的設(shè)計計算［J］. 建筑結(jié)構(gòu)，2006,36(1):38-41.［8］郝際平，郭宏超，解崎，等.半剛性連接鋼框架鋼板剪力墻結(jié)構(gòu)抗震性能試驗研究［J］. 建筑結(jié)構(gòu)學(xué)報，2011,32(2):33-40.
