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青岛万邦中心1#楼高度232.4m,采用钢-混凝土混合结构,整体体系为斜撑框架-核心筒结构,平面形状不规则,各角柱位置均采用异形型钢混凝土柱——鱼钩形型钢混凝土柱,含钢率大于15%,属于高含钢率型钢混凝土柱。试验采用两个1∶6缩尺鱼钩形型钢混凝土柱模型,含钢率为16.8%,分别采用小偏心和轴心受压加载方式进行试验,得到了型钢柱承载力与破坏形式。试验结果表明,异形型钢混凝土柱的破坏属于延性,而型钢的性能对于试件整体延性具有决定性作用。
The height of No.1 Building in Qingdao Wanbang Center is 232.4m. The steel-concrete composite structure is adopted. The overall system is the diagonal brace-core tube structure with irregular planar shape. The positions of each corner post are shaped steel concrete columns-hook shape steel concrete columns , With a steel content of more than 15%, belonging to high steel ratio steel concrete column. Two 1: 6 scale hook-shaped concrete columns with a steel content of 16.8% were used in the experiment. The bearing capacity and failure mode of the steel columns were obtained by using small eccentricity and axial compression loading respectively. The test results show that the failure of profiled steel reinforced concrete columns belongs to ductility, while the performance of profiled steel is decisive for the overall ductility of the specimens.