GFRP连接件的夹芯墙板抗剪性能研究

Study on Shear Performance of Sandwich Wall Panel of GFRP Connector

为研究玻璃纤维增强塑料(GFRP)棒状连接件的截面尺寸、连接件间距对夹芯保温墙板连接件的抗剪性能影响,本文使用ABAQUS有限元软件建立夹芯墙板受力模型,采用设置MC型、十字形截面连接件的夹心保温墙板进行仿真模拟。研究结果表明:连接件在竖向荷载作用下受力分为线弹性、非线性、达到抗剪承载力极限3个阶段;夹芯保温墙板连接件个数越多、排布间距越小,抗剪承载力越大;相同条件下,十字型截面的连接件抗剪性能优于MC型连接件;满足抗剪承载力的条件下,模型L1、模型L2、模型L6、模型L7设计的夹芯保温墙板的工程应用性和经济性更好。

In this paper, the influence of the cross-sectional dimensions of the glass fiber reinforced plastic(GFRP) rod-like pull-tabs and the spacing of the joints on the shear resistance of the sandwich insulation panel joints is studied. The force model of sandwich wall panel is established by using ABAQUS finite element software, and the sandwich insulation wall panel with MC type and cross section drawing is used for simulation. The research results show that the joints are divided into three stages: linear elasticity and nonlinearity, which reach the limit of shear bearing capacity under vertical load. The more the number of connectors of sandwich insulation wall board, the smaller the arrangement spacing. The greater the shear bearing capacity. Under the same conditions, the shear resistance of the cross-section joint is better than that of the MC joint;under the condition of the shear capacity, the model L1, the model L2, the model L6, and the model L7 are designed. Sandwich insulation wall panels are more suitable for engineering applications and more economical.