日本鋼筋混凝土結構的大震設計方法介紹
葉列平1,孫玉平2
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(1 清華大學土木工程系,北京 100084; 2 日本神戶大學大學院工學研究科,日本 6578501)[摘要]介紹日本鋼筋混凝土結構二階段抗震設計方法,重點介紹第二階段大震設計方法。該方法包括,第二階段的抗震設計目標、地震作用需求、結構屈服機制設計、結構屈服機制保證設計,以及第二階段結構分析方法、軸壓比限值、材料強度取值和非結構構件的設計要求等。方法可供建立我國大震抗倒塌定量計算方法參考。[關鍵詞]鋼筋混凝土結構;抗震設計;大震;屈服機制;軸壓比限值Introduction of design method for RC structures under severe earthquake in JapanYe Lieping1, Sun Yuping2(1 Department of Civil Engineering, Tsinghua University, Beijing 100084,China;2 Department of Architecture, Graduate School of Engineering, Kobe University, Kobe 6578501, Japan)Abstract:The two-level seismic design methodology for reinforced concrete(RC) building structures in Japan is introduced. The design method of level 2 corresponding to severe earthquake is presented, which included the acceptable design index, the definition of the earthquake force, the design of failure mechanism for the structure, and the ensuring design of structures-failure mechanism. The corresponding analysis method, axial force limit of RC columns, concrete and steel strength value and the performance the non-structural element under the second level earthquake intensity are introduced. The method is helpful for developing a methodology to conduct quantitative anti-collapse seismic design for RC buildings under severe earthquake in China.Keywords:reinforced concrete structure; seismic design; severe earthquake; failure mechanism; axial force ratio limit*國家科技支撐計劃項目(2009BAJ28B01);國家自然科學基金重大研究計劃重點項目資助(90815025)。作者簡介:葉列平,教授,博士生導師,Email:ylp@mail.tsinghua.edu.cn。參考文獻[1]梅村魁.新しい耐震設計建筑基準法新耐震設計基準[M].日本建筑センタ,1981.[2]日本建設省建筑研究所編.平成7年兵庫縣南部地震被害調查最終報告書[R].1996.[3]日本建筑學會編.鐵筋コンクリト造建物の終局強度型耐震設計指針·同解說[M].1990.[4]日本建筑學會編.鐵筋コンクリト構造計算規(guī)準·同解說[M].1982.[5]日本建筑學會編.鐵筋コンクリト造建物の韌性保證型耐震設計指針·同解說[M].1999.