混凝土框架結(jié)構(gòu)的抗連續(xù)性倒塌設(shè)計方法
葉列平,陸新征,李易,梁益,馬一飛
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(清華大學(xué)土木工程系,北京 100084)[摘要]介紹了各國規(guī)范關(guān)于結(jié)構(gòu)抗連續(xù)性倒塌的設(shè)計目標和有關(guān)設(shè)計規(guī)定。結(jié)合按我國規(guī)范設(shè)計的鋼筋混凝土框架結(jié)構(gòu)的實際情況和抗連續(xù)倒塌設(shè)計目標,在大量分析研究的基礎(chǔ)上,提出了對我國框架結(jié)構(gòu)抗連續(xù)性倒塌的概念設(shè)計方法、拉結(jié)強度設(shè)計方法和拆除構(gòu)件設(shè)計法,并給出了有關(guān)配筋構(gòu)造措施。[關(guān)鍵詞]框架結(jié)構(gòu);抗連續(xù)性倒塌;拉結(jié)強度法;拆除構(gòu)件法;配筋構(gòu)造Design method on the progressive-collapse-resistance of RC framesYe Lieping, Lu Xinzheng, Li Yi, Liang Yi, Ma Yifei(Department of Civil Engineering, Tsinghua University, Beijing 100084, China)Abstract:Design objectives and corresponding specifications of the progressive-collapse resistance in different codes of foreign countries are introduced. Based on a number of calculations, with the consideration of the actual structures designed according to Chinese codes and the design objectives for Chinese structures, the design methods for the progressive-collapse-resistance of Chinese RC frame structures are proposed, which include conceptual method, tie force method and alternate load path method, together with corresponding detail design requirements.Keywords:frame structure; progressive-collapse-resistance; tie force method; alternate load path method; detail design國家科技支撐計劃課題(2006BAJ03A02);國家自然科學(xué)基金重大研究計劃重點項目資助(90815025);國家科技支撐計劃項目(2009BAJ28B01)。作者簡介:葉列平,教授,博士生導(dǎo)師,Email:ylp@mail.tsinghua.edu.cn。參考文獻[1]陳肇元. 室內(nèi)燃氣爆炸危害與房屋結(jié)構(gòu)設(shè)計對策[R].清華大學(xué)抗震抗爆工程研究室,1991.[2]BS8110-1: 1997 Structural Use of Concrete: Part Ⅰ: Code of Practice for Design and Construction[S].[3]American Concrete Institute. Building Code Requirements for Structural Concrete (ACI318m-02) and Commentary (ACI318mr-02)[S]. Farmington Hills, Mich, 2002.[4]Department of Defense. Unified Facilities Criteria (UFC): Design of Structures to Resist Progressive Collapse[S]. Washington D.C.,2005.[5]United States General Services Administration (GSA). Progressive Collapse Analysis and Design Guidelines for New Federal Office Buildings and Major Modernization Projects[S]. Washington D.C., 2003.[6]GB50010—2002 混凝土結(jié)構(gòu)設(shè)計規(guī)范[S].北京:中國建筑工業(yè)出版社, 2002.[7]OSAMA A MOHAMED. Progressive collapse of structures: annotated bibliography and comparison of codes and standards[J]. Journal of Performance of Constructed Facilities, 2006, 20(4): 418-425.[8]BRUCE R ELLINGWOOD. Building design for abnormal loads and progressive collapse[J]. Computer-Aided Civil and Infrastructure Engineering, 2005, 20(3): 194-205.[9]American Society of Civil Engineers (ASCE). Minimum Design Loads for Buildings and Other Structures, ASCE-7[S]. Reston, Va, 2005.[10]MARJANISHVILI S M. Progressive analysis procedure for progressive collapse[J]. Journal of Performance of Constructed Facilities, 2004, 18(2): 79-85.[11]European Committee for Standardization. EN1991-1-7:2006, Eurocode Ⅰ: Actions on Structures. Part 1-7: General Actions-Accidental Actions[S]. Brussels, 2006.[12]MOORE D B. The UK and European regulations for accidental actions[C]//Proceedings of Workshop on Prevention of Progressive Collapse, National Institute of Building Sciences, Washington D.C., 2002.[13]British Standard Institute. BS8110: Structural Use of Concrete: Part Ⅰ: Code of Practice for Design and Construction[S]. London,1985.[14]胡曉斌,錢稼茹. 結(jié)構(gòu)連續(xù)倒塌分析與設(shè)計方法綜述[J],建筑結(jié)構(gòu),2006,36(S1): 79-83.[15]BRUCE R ELLINGWOOD. Mitigating risk from abnormal loads and progressive collapse[J]. Journal of Performance of Constructed Facilities, 2006, 20(4):315-323.[16]陸新征, 李易,葉列平,等.