超高层钢框筒结构体系截面尺寸的初步确定

Determination of Section Dimension for Super-rise Steel Frame-tube Structure in the Preliminary Design Stage

根据超高层钢框筒结构自重轻、抗侧刚度小的特点,结合规范规定的位移限值要求,提出了在结构初步设计阶段,可直接根据风荷载作用下的顶点位移限值条件来确定截面尺寸的方法,大大缩短了设计周期,减少了计算机时,可供设计人员进行方案设计或初步设计时参考。

The super-rise steel frame-tube structure is light and the lateral stiffness of it is small.According to the characteristics of steel frame-tube and the displacement limit under wind load regulated in building code,the determining method of section dimension in preliminary design stage is presented, which can shorten the design cycle and save the computer interior memory. It can be useful for scheme design or preliminary design.