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本文对广州新白云国际机场航站主楼三根三管梭形格构柱缩尺模型进行了立式破坏性稳定试验研究,侧重研究直立三管梭形格构柱在两端铰接约束,竖向轴压情况下的破坏特性与破坏机理,并探讨了稳定极限承载力、变形过程。三管梭形格构柱缩尺模型的比例分别为1/4、1/5、1/6,长度分别是4.7m、4.5m和4.9m,管径分别为68×4、58×4和58×4。缩尺试验在足尺试验的基础上进一步检验有限元分析结果的正确性。在破坏形状与位置、荷载-位移曲线、稳定极限承载力等内容方面,通过试验结果与有限元数值计算结果进行比较表明,二者吻合较好。
In this paper, the vertical destructive stability test of three three-shuttle foramen-type lattice columns in the main building of Guangzhou New Baiyun International Airport is carried out. The vertical destructive stability test is mainly focused on the three- Under the condition of pressure, the failure characteristics and failure mechanism are discussed, and the stability of ultimate bearing capacity and deformation process are also discussed. The proportions of the three-dimensional shuttle-shaped column scale model were 1 / 4,1 / 5,1 / 6 respectively, and the lengths were 4.7m, 4.5m and 4.9m respectively. The diameters of the three- 58 × 4. The scale test further verifies the correctness of the finite element analysis based on the full scale test. In the aspect of destroying the shape and location, load - displacement curve and stability ultimate load capacity, the comparison between the experimental results and the finite element numerical results shows that the two agree well with each other.