新型钢木组合楼盖抗弯性能有限元分析

Finite element analysis of bending resistance of new steel and wood composite floor

提出一种新型钢木组合楼盖,为研究其钢材规格尺寸对其抗弯性能的影响,采用ABAQUS有限元分析软件对三种不同规格钢材的钢木组合楼盖进行有限元分析。分析结果表明:增加冷弯型钢的腹板高度,钢木组合楼盖抗弯承载能力显著提高31.9%,跨中挠度变形提高12.5%;增加钢材厚度,钢木组合楼板抗弯承载力提高8.73%,跨中挠度变形提高0.73%。冷弯型钢—胶合木组合楼盖有良好的组合效应,并有较好的抗弯性能。

In order to study the effect of steel specification and size on bending performance, a new type of steel and wood composite floor is presented. The results showed that the bending capacity of steel and wood composite floor increased by 31.9% and the mid-span limit deformation increased by 12.5%. With the increase of steel thickness, the flexural capacity of steel and timber composite floor increased by 8.73%, and the mid-span limit deformation increased by 0.73%. The cold-formed steel-plywood composite floor has good combined effect and good bending resistance.