钢筋混凝土巨型框架结构抗震设计方法研究

Research on the seismic design of RC mega-frame structures

结合现行规范以及文献[2]所提出的三水准设防、三阶段设计法,对设计基本地震加速度为0.15 g地区结构按主框架提高一度或者半度进行两榀巨型框架结构设计。采用弹塑性动力分析程序Drain-2d+对结构进行弹塑性地震反应分析与评价,以得出合理的设计参数。

This paper begins with the structure design of the two typical plane reinforced concrete mega-frame in terms oi one or half more degree according to the present codes and references, which state the three-level precaution and three-stages design method, and carries out elastic-plastic seism response analysis under the action of the earthquake actions regarding the 7.5-degree region. The elastic-plastic dynamic analysis program Drain-2d ＋ of the plane structure is used to get elastic-plastic time-history analysis for each typical mega-frame under the action of seism.