论文部分内容阅读
为满足大型风洞筒体预制板横向、纵向拼接处力学性能要求,提出了预制板横向、纵向拼接节点两种新型构造措施。对新型横向、纵向拼接节点各9个试件进行受弯、受剪和轴向拉压等试验研究,量测并分析试件的荷载、位移及应变,观测试件的裂缝发展情况和破坏过程。对新型横向拼接节点的受弯、受剪、受拉承载力以及纵向拼接节点的受剪承载力进行了理论简化分析计算,计算结果与试验结果吻合较好。研究结果表明:该新型横向、纵向拼接节点连接可靠,具有良好的承载能力和变形能力。
In order to meet the mechanical performance requirements of the transverse and longitudinal splicing of prefabricated panels of large-scale wind tunnels, two new types of structural measures of transverse and longitudinal splicing joints of prefabricated panels are proposed. Nine specimens of the new horizontal and vertical splicing joints were subjected to bending, shearing and axial tension tests. The load, displacement and strain of the specimens were measured and analyzed. The fracture development and failure process of the specimens were observed . The bending, shearing, tensile load capacity of the new type of transverse splicing joints and the shear capacity of the longitudinal splicing joints are theoretically simplified and calculated. The calculated results are in good agreement with the experimental results. The results show that the new type of horizontal and vertical splicing joints are reliable, with good carrying capacity and deformation capacity.