超高密柱框架-核心筒结构的整体稳定分析及应用

Analysis and application of overall stability of super high-rise dense column frame-corewall structure

贵阳世界贸易中心A塔楼,结构总高度381m,应用内置钢棒的钢筋混凝土框架柱和内置钢管的钢筋混凝土核心筒,形成密柱框架-核心筒结构;针对其“下大上小”的体型,外围采用缓倾斜的外框柱、内部以斜墙过渡实现核心筒向上缩小。对此超高的密柱框架-核心筒结构进行整体和专项的详细分析,作为刚度控制指标的整体稳定满足要求,抗震性能化设计满足规范要求。

Tower A of Guiyang World Trade Center has a total structural height of 381m,and it adopts the dense column frame-corewall structural system by using reinforced concrete frame column with built-in steel rods and reinforced concrete corewall with built-in steel tubes.In view of its shape with“larger lower part and smaller upper part”,the plane size of the corewall is reduced upward by gently inclined outer frame column and inclined wall transition in the interior.The whole and special detailed analysis of this super high-rise frame-corewall structure was carried out.As a stiffness control index,the overall stability meets the requirements,and the seismic performance design meets the requirements of the code.