钢筋混凝土模型框架振动台试验分析和抗震性能评估

以同济大学国家防灾减灾重点实验室进行的1/10模型比例的12层钢筋混凝土模型框架振动台模型试验为背景,采用钢筋混凝土结构基于性能的抗震设计理论,分别利用能力谱法和改进的能力谱法对模型框架进行抗震评估,结果表明能力谱法在迭代计算过程中可能不收敛,而改进的能力谱法则可以求出结构在弹性以及弹塑性阶段的性能点。结合对该结构进行的模型振动台试验,并对该结构进行非线性时程分析,结果表明,对于高层建筑改进的能力谱会高估结构的抗震能力。因此,对高层建筑进行抗震评估时,改进的能力谱法是可行的,但需要对评估误差进行适当的处理,以使评估结果更加准确。

Shaking Table Model Test and Seismic Evaluation of Reinforced Concrete Frames

Based on the shaking table test on a 12 stories R.C. frame model with scale of 1/10, which is done in Tongji university National key lab, the seismic performance and damage characteristic of R.C frame are studied. According to the performance-based seismic design theory, capacity spectrum method and improved capacity spectrum method are applied to evaluate the seismic performance of structures. The results shows that capacity spectrum method maybe not converge in calculating the target displacement, while t...