Timber structures — Testing of punched metal plate fasteners and joints
木结构——冲压金属板紧固件和接头的试验
发布日期:
2011-10-21
ISO 8969:2011规定了确定承重木结构中由冲压金属板紧固件制成的接头的强度和刚度的试验方法,如下所示:
在施加力的方向和施加力的方向之间的不同角度下,由嵌入式突起的横向阻力产生的载荷-滑移特性和最大载荷
板的轴线(载荷-板角,α),
木材的纹理方向(载荷-纹理角,θ);
板在不同角度下的抗拉强度,α;
板在各种角度下的抗压强度,α(可选测试);
板在不同角度下的抗剪强度,α。
ISO 8969:2011与ISO 6891相关联,后者给出了一般测试要求。
此外,在附录A中规定了交替弯曲时测试钉根的方法。
ISO 8969:2011 specifies test methods for determining the strength and stiffness of joints made with punched metal plate fasteners in load-bearing timber structures, as follows:
load-slip characteristics and maximum load resulting from the lateral resistance of the embedded projections, at various angles between the direction of the applied force and
the axis of the plate (load-plate angle, α),
the direction of the grain of the timber (load-grain angle, θ);
the tensile strength of the plate at various angles, α;
the compression strength of the plate at various angles, α (optional test);
the shear strength of the plate at various angles, α.
ISO 8969:2011 is linked to ISO 6891, which gives general test requirements.
In addition, a method for testing the nail root in alternate bending is specified in Annex A.