日本钢筋混凝土结构大震抗震验算的保有耐力计算方法

Seismic design methodology for reinforced concrete structures under strong earthquake in Japan

介绍基于弹塑性理论的日本现行钢筋混凝土结构大震抗震验算的保有耐力计算法,包括:保有耐力计算法的基本原理、确定方法和使用准则;结构楼层偏心率和刚性率对保有耐力的影响;结构各层的保有水平耐力计算;反映结构抗震特性的结构特征系数计算;结构保有耐力计算法的步骤和公式。并给出一个简单示例。以上有助于我国结构设计人员详细了解日本钢筋混凝土结构大震抗震验算的体系和具体方法,为发展我国的建筑结构大震定量计算方法提供借鉴。

The seismic design method for reinforced concrete structures under strong earthquakes in Japan was introduced in this paper.The design procedure was described along with the calculation procedures of the story eccentricity ratio and the stiffness ratio of the structures,the ultimate lateral load-carrying capacity at each story,as well as the characteristic factor of structure,which form the basis of the Japanese seismic design method.A design example was given finally.This paper is intended to provide the background and information in details for Chinese engineers and researchers to better understand the characteristics of the Japanese seismic design method for concrete structures under strong earthquake.