日本钢筋混凝土结构的大震设计方法介绍

Introduction of design method for RC structures under severe earthquake in Japan

介绍日本钢筋混凝土结构二阶段抗震设计方法,重点介绍第二阶段大震设计方法。该方法包括,第二阶段的抗震设计目标、地震作用需求、结构屈服机制设计、结构屈服机制保证设计,以及第二阶段结构分析方法、轴压比限值、材料强度取值和非结构构件的设计要求等。方法可供建立我国大震抗倒塌定量计算方法参考。

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.