刚性楼板假定

采用刚性楼板假定，取各个楼面的质量中心在x，y方向的位移与绕z轴的转角作为自由度，将非对称空间框架结构简化为串刚片模型。

Based on the assumption of rigid slab , and regarding the displacements in x and y and the rotation by z in each floor 's mass center as DOFs , the asymmetric frame structure was simplified as the rigid-body-string model .

运用大型结构分析软件SSAPgl对同样的结构按不同的空间模型（刚性楼板假定和弹性楼板假定）进行了静力、动力分析。

The same frame is analyzed as two different spatial models ( one suppose stiff floor , the other elastic fioor ) under static and dynamic loading .

基于刚性楼板假定和层间刚度假定的传统风振响应简化分析方法虽然计算简便，但会带来较大误差。

Although the traditional simplified wind-induced dynamic analysis based on the rigid floor assumption and the storey-to-storey stiffness assumption can be carried out with computational efficiency , the errors involved would be noticeable .

采用刚性楼板假定，建立了三维结构的平面子结构平扭模型与杆系型平扭模型。

Based on the rigid slab assumption , two types of 3D analysis model , which are the plane substructure model and the spatial pole-component-system model , are developed as the structural analysis model .

为了研究结构的动力特性和在水平地震作用下的动力响应规律，分别采用弹性楼板假定和刚性楼板假定建立了两种有限元模型，将两种有限元模型计算结果进行比较。

In order to study the dynamical characteristics and the response characteristics under the condition of horizontal earthquake , this paper is set up two finite-element models which are used different hypothesis - elastic floor hypothesis and rigid floor hypothesis , then compares with the results of two hypothesis .

分别采用了刚性和弹性楼板假定，并考虑了垂直地震作用、温度应力对结构内力与变形的影响，验算了罕遇地震作用下结构的弹塑性变形。

The influences of rigid and elastic floor slab assumption , vertical earthquake action and the temperature stress on the structural internal force and deformation are analyzed . The structural elastic-plastic deformation under infrequent earthquake is checked .