摘要
通过模型试验及其理论分析，测得了Ｒ２钢屋盖的自功率谱及自振周期，分析了它的 振动模态，比较了其在三向地震作用下的加速度反应和位移反应，揭示了Ｒ２钢屋盖结构在单向及 三向地震作用下试验测得、理论算得的地震反应特征和抗震薄弱环节，为评价Ｒ２钢屋盖结构在三 向地震作用下的抗震性能提供了试验数据和理论依据，验证了按我国现行建筑抗震设计规范进行 Ｒ２钢屋盖结构抗震设计的可行性。
The self-power spectrums and natural periods of the R2 steel roof model of Shanghai Pudong International Airport terminal have been acquired through model experiment and theoretical analysis. In this paper, the vibration models of the structure are studied, and the experimental and theoretical results of its acceleration and displacement responses under the actions of one and three dimensional earthquakes are compared. The seismic response characteristics and the aseismic weak aspects of the steel roof under one and three dimensional earthquakes are then deduced from the test and calculation. The experimental data and theoretical criteria for evaluating the aseismic behavior of this steel roof structure are provided. Meanwhile, the feasibility of its designing according to the Chinese Code for Aseismic Design of Building Structure has been verified.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
1999年第2期18-27,42,共11页
Journal of Building Structures
关键词
大跨度钢屋盖
振动台试验
三向地震作用
机场
large span steel roof structure, shaking table test, three dimensional earthquake action
