摘要
将框筒结构在侧向荷载作用下的楼层变形划分为剪切变形和弯曲变形.用D值法对剪切变形及内力进行分析,考虑了翼缘框架的剪切刚度的影响,并对D值法进行了简化.用等效连续体法对弯曲变形及内力进行分析,分析了影响框筒结构剪力滞的主要因素.通过与空间框架分析程序的比较表明,该方法思路简单,计算结果可满足工程需要,可供初步设计使用.
<Abstrcat> The inter-storey deformation of framed-tube structures under lateral loads is divided into shear deformation and flexural deformation. The shear deforma tion and forces can be calculated by simplified amendatory contraflexure point method, in which the shear stiffness of flange panels is taken into account. The flexural deformation and forces can be calculated by the equivalent continuous system method, in which the main influencing parameters of shear lag are discus sed. Contrasting with space-frame analysis programs, the simplicity and accurac y of the proposed method are demonstrated through the analysis of two framed-tu be structures. This method is suitable for preliminary design purposes.
出处
《华中科技大学学报（城市科学版）》
CAS
2005年第2期13-18,共6页
Journal of Huazhong University of Science and Technology
基金
高等学校博士点基金资助项目(20020532010).
关键词
框筒结构
D值法
等效连续体
剪力滞
framed-tube structures
amendatory contraflex ure point method
equivalent continuous system
shear lag
