偏心配筋砌体结构弹塑性反应的影响参数分析

为了研究影响多高层偏心配筋砌体结构弹塑性地震反应的主要因素,采用自行编制的平扭耦联时程分析程序(EDAPCSC),进行了真实结构的参数分析,初步确定了影响结构平动位移反应的因素:结构层数和层高、地震动强度、抗侧移刚度,等;并确定了影响结构扭转反应的因素:结构偏心率、结构层数、地震动特性,等,初步得到了扭转反应和结构特性之间的某种关系,分析还表明:结构中的危险楼层总是发生在底部,结构总的破坏程度由平动位移控制,经合理设计后配筋砌体结构具有良好的抗震性能。

Preliminary analysis of characters influencing asymmetric masonry structures'''' elastic-plastic earthquake response

The effect of such system parameters as structural characteristic, earthquake properties and different styles of stiff distribution, on the inelastic response of multi - story asymmatric reinforced masonry structures is analysed based on the real structures. It is concluded that the main parameters that influence the transverse displacement are number of stories height story, earthquake intensity, and story stiffness; The main parameters that influence the torsion response are: eccentricity, numbers of stories, and the properties of earthquakes. Some other qualitative conclusions drown from calculations are: the bottom stories are more liable to be de- stroyed, the vulnerability of the structure is always dependent on the transverse response, and the reinforced masonry structure is outstanding to stand earthquake.