摘要
本文将基底土壤简化为弹簧—质量模型,其水平及转动的弹簧刚度可等效为具有一定弯曲刚度的弹性杆,与上部结枸共同组成一简化的多质点杆件串联的相互作用体系。对该简化的结构有限元分析模型,利用结构矩阵分析的微机方法,可自动生成结点力与杆端力间的转换矩阵,并由此得到土壤—高耸结构相互作用体系的侧向刚度特性。在此基础上,进行了结构动力特征及地震反应的分析。最后,对计算结果进行了讨论。
The paper simplifies the baseplate soil to a spring-mass model, of which thc horizontal and rotary stiffness of the spring is equal to an elastic member having a definite bending stiffness, of which joins together with the super-structure forms a simplified muti-mass system of string member. On this simplified structure of finite element analysis model using micro-computer method of structure matrix analysis can automatically forms a transform matrix between nodal forces and member end forces and obtains the characteristics of the lateral stiffness of the soil-structure interaction system. On the basis of this, the paper analyses the property of the sructure dynamic and the carthquake response and discusses the calculation results in the end
出处
《土木工程与管理学报》
1989年第3期29-36,共8页
Journal of Civil Engineering and Management
关键词
高耸结构
基盘土壤
相互作用体系
地震反应
分析模型
towering structure
bascplatcsoil
interaction system
carthquake response
model of analysis
