摘要
在底部框架抗震墙砖房结构中因框架与抗震墙、砖墙之间的侧移刚度相差较大 ,楼板在其自身平面内发生一定的变形而使结构不能完全协同工作 ,有时它对结构的内力分布和破坏形式产生较大影响。建立了地震作用下结构的振动方程和刚度矩阵 ,给出了恢复力模型及其特征点的取值方法 ,可进行底部框架抗震墙砖房的弹塑性动力分析。
Since there are great differences on the lateral stiffness among frames, shear walls and masonry walls, and the floor deformation occurs in its own plane, the structure cannot work compatibly and completely sometimes, which has great influence on the distribution of internal forces and failure types. The vibration equation and stiffness matrixes of structure under earthquake excitation are founded by using the model of series parallel connection MFD system. The restoring force model and the method for dealing with the characteristic value are also given, which can be applied to the elasto plastic dynamic analysis.
出处
《淮海工学院学报（自然科学版）》
CAS
2000年第2期53-56,共4页
Journal of Huaihai Institute of Technology:Natural Sciences Edition
基金
陕西省建设厅基金资助项目!(980012)
关键词
底部框架抗震墙砖房
动力计算模
楼板
变形
masonry buildings with frame shear walls at lower two stories
series parallel connection
stiffness
restoring force model
