摘要
现有的高层建筑结构罕遇地震分析方法可以归结为两大类,弹塑性动力时程分析方法和静力弹塑性分析方法。这两类方法各有其优点和不足。将动力和静力弹塑性分析方法结合起来,发挥各自的优势是改进高层建筑结构罕遇地震分析方法的一种思路。本文提出了一种可以应用于高阶振型和扭转效应不可忽略的高层钢结构罕遇地震分析方法———静动力综合法。该方法结合了动力弹塑性时程分析、高层建筑结构等效弹塑性层模型和静力推覆分析方法的优点。通过算例分析验证了静动力综合法的合理性和适用性,以及静力弹塑性分析方法在三维非对称结构中应用的可行性。
This paper presents an inelastic static dynamic analysis method of high rise steel structures under earthquake action. This method colligates the virtues of dynamic nonlinear time history analysis method, equivalent inelastic storey model and Pushover method. This method can be used in those high rise buildings in which high order vibration modes and torsional effect should not be ignored. From the analysis of some example buildings, the rationality and security of inelastic storey model have been validated, as well as the feasibility of applying inelastic static dynamic analysis method to plane frame structures considering high order vibration modes and 3D unsymmetry structures has also been validated.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2003年第3期25-32,共8页
Journal of Building Structures
基金
国家自然科学基金重大项目(59895410)
关键词
高层建筑结构
钢结构
弹塑性
抗震分析
静动力综合法
等效层模型
high rise steel structure
inelastic equivalent storey model
inelastic time history analysis
Pushover analysis
