不锈钢芯板一字形墙压弯承载力研究及有限元分析

Experimental study and finite element analysis on the compression and bending capacity ofstainless steel core slab wall

为了解不锈钢芯板墙在轴力和弯矩共同作用下的受力性能,对4片不锈钢芯板墙进行了足尺模型压弯试验,分析了墙肢的位移变化、应力分布特征和极限承载能力。采用ABAQUS软件建模,将其计算结果与试验结果进行比对。试验结果表明,整个墙肢在竖向压弯荷载的作用下受压呈现不均匀性;墙肢均发生在受压一侧附近面板的局部屈曲破坏模式;偏心距及面板厚度是影响不锈钢芯板墙承载性能的重要因素。

In order to understand the mechanical properties of the stainless steel core slab wall under the combined action of axial force and bending moment,the full-scale model bending test was carried out on four stainless steel core slab walls.The displacement change,stress distribution characteristics and ultimate bearing capacity of the wall limb were analyzed.The ABAQUS software is used to model and compare the calculation results with the test results.The test results show that the whole wall limb is not uniform under the action of vertical bending load,the wall limb occurs in the local buckling failure mode of the panel near the compression side,the size of eccentricity and the thickness of the panel are important factors affecting the bearing capacity of the stainless steel core wall.