分層裝配式支撐鋼結(jié)構(gòu)梁貫通式節(jié)點研制與性能試驗*
劉浩晉1，王偉1,2，陳以一1,2，余亞超3，楊建行3，劉大偉4
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劉浩晉1，王偉1,2，陳以一1,2，余亞超3，楊建行3，劉大偉4（1 同濟大學(xué)建筑工程系，上海 200092；2 同濟大學(xué)土木工程防災(zāi)國家重點實驗室, 上海 200092； 3 寶業(yè)集團浙江建設(shè)產(chǎn)業(yè)研究院有限公司，紹興 312030；4 日本大和房屋工業(yè)株式會社，奈良 631-0801）[摘要] 對分層裝配式支撐鋼結(jié)構(gòu)工業(yè)化建筑梁貫通式節(jié)點進行了研制改進和性能試驗，考察了構(gòu)造形式和柱軸壓力對節(jié)點剛度和承載力的影響。試驗研究表明，節(jié)點失效模式主要表現(xiàn)為梁翼緣發(fā)生過大塑形變形和方管柱截面鼓曲，且與節(jié)點局部構(gòu)造和柱軸壓力大小有密切關(guān)系。所有試件均具有一定的抗彎剛度和承載力，以及較好的延性性能，能夠保證柱子在大變形條件下承擔(dān)一定比例的水平地震力。[關(guān)鍵詞] 分層裝配；鋼結(jié)構(gòu)；工業(yè)化建筑；梁貫通式節(jié)點；剛度；延性中圖分類號：TU391文獻標(biāo)識碼：A文章編號：1002-848X(2012)10-0053-04Development and behavior testing of beam through connections of floor-by-floor assembled steel braced structuresLiu Haojin1, Wang Wei1, 2, Chen Yiyi1, 2, Yu Yachao3, Yang Jianxing3, Liu Dawei4(1 Department of Building Engineering, Tongji University, Shanghai 200092, China; 2 State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; 3 Zhejiang Construction Industry Research Institute, Baoye Group, Shaoxing 312030, China; 4 Daiwa House Industry Co., Ltd., Nara City 631-0801, Japan)Abstract: Beam through connections were improved and experimentally studied in order to be used in the floor-by-floor assembled steel braced structures for prefabricated buildings. The effects of connection details and the axial compression in the column on the rigidity and strength of the connections were investigated. Test results show that the failure modes of the joints significantly depend on the connection details and axial compression in the column, demonstrating excessive plastic deformation of beam flanges or plastic local buckling of tube column. All the joints are found to have certain bending rigidity and moment resistance with favorable ductility, which can ensure that the columns participate in resisting horizontal seismic force under the conditions of large story drift.Keywords: floor-by-floor assembling; steel structure; prefabricated building; beam through connection; rigidity; ductility*中央高?；究蒲袠I(yè)務(wù)費專項資金，上海市浦江人才計劃。通訊作者：王偉，博士，副教授，Email：weiwang@#edu.cn。參考文獻［1］王偉，陳以一，余亞超，等. 分層裝配式支撐鋼結(jié)構(gòu)工業(yè)化建筑體系［J］. 建筑結(jié)構(gòu)，2012,42(10):48-52.［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］Eurocode 3 Design of steel structures, part 1-8: design of joints［S］. Brussels: European Committee for Standardization, 2005.
