The utility model discloses a testing fixture for bearing capacity of high-strength bolts for steel structures, which comprises a bottom plate. The upper surface of the bottom plate is equipped with a bottom block, the lower surface of the bottom block is connected with the upper surface of the bottom plate, the right outer wall of the bottom block is equipped with a side plate, the left outer wall of the side plate is connected with the right outer wall of the bottom block, and the upper surface of the bottom block is equipped with a top block and the top plate. The lower surface of the block is connected with the upper surface of the bottom block, and the inner wall of the side plate is provided with a rotating shaft. The testing fixture for bearing capacity of high-strength bolts in this steel structure has no buffer device for the main bearing capacity components through the cooperation between the top, block, pin, support, slide seat and tie rod, which results in the damage or even damage of the main bearing capacity components without unloading tension by recoil force, which affects the normal operation of the testing fixture, saves the purchase cost of users and avoids the high use of steel structures. The resource waste of strength bolt bearing capacity testing fixture is suitable for popularization.
【技术实现步骤摘要】
一种钢结构用高强度螺栓承载力检测夹具
本技术涉及检测夹具
,具体为一种钢结构用高强度螺栓承载力检测夹具。
技术介绍
螺栓承载力试验是通过螺栓杆部套上相应的垫块(平垫块:实物载荷,楔块:楔负载)通过工装,基于拉伸试验方法,匀速施加作用力,使螺栓局部变形断裂并判断螺栓承载能力的过程,现有的GB规定螺栓检测出实物拉伸外,另需进行楔负载试验,而楔负载试验对于不同种类的螺栓要使用不同角度的楔块,如钢结构螺栓用10°,钢网架螺栓用4°,因此,一套紧固件夹具需同时满足两种螺栓对楔块的要求还要满足装夹方便,目前,各大试验机厂商对于大多都有一套桶式螺栓承载力夹具,存在如下问题,在装夹螺栓的时候需将整个桶状的工装放在工作台上,将螺栓插入桶内,露出螺纹部分,如需楔负载试验还需在螺栓上套上平垫圈或楔块垫圈,试验完成后还得装夹方式反过来拆卸,大大影响效率,各个规格的垫圈及桶状工装,数量繁多,一旦使用过程中大孔径套小螺栓将直接崩坏一个规格的工装,导致维修成本上升在现有技术中,例如申请号为201621461467.7的技术专利包括主承载力部件、螺栓头部套筒、楔块或垫块,所述主承载力部件由 ...
【技术保护点】
1.一种钢结构用高强度螺栓承载力检测夹具,包括底板(1),其特征在于:所述底板(1)的上表面安装有底块(3),所述底块(3)的下表面与底板(1)的上表面相连,所述底块(3)的右侧外壁安装有侧板(2),所述侧板(2)的左侧外壁与底块(3)的右侧外壁相连,所述底块(3)的上表面安装有顶块(4),所述顶块(4)的下表面与底块(3)的上表面相连,所述侧板(2)的内壁安装有转轴(5),所述转轴(5)的外壁与侧板(2)的内壁螺纹相连,所述转轴(5)的外壁安装有手柄(6),所述手柄(6)的内壁与转轴(5)的外壁相连,所述转轴(5)的外表安装有转杆(8),所述转杆(8)的内壁与转轴(5)的 ...
【技术特征摘要】
1.一种钢结构用高强度螺栓承载力检测夹具,包括底板(1),其特征在于:所述底板(1)的上表面安装有底块(3),所述底块(3)的下表面与底板(1)的上表面相连,所述底块(3)的右侧外壁安装有侧板(2),所述侧板(2)的左侧外壁与底块(3)的右侧外壁相连,所述底块(3)的上表面安装有顶块(4),所述顶块(4)的下表面与底块(3)的上表面相连,所述侧板(2)的内壁安装有转轴(5),所述转轴(5)的外壁与侧板(2)的内壁螺纹相连,所述转轴(5)的外壁安装有手柄(6),所述手柄(6)的内壁与转轴(5)的外壁相连,所述转轴(5)的外表安装有转杆(8),所述转杆(8)的内壁与转轴(5)的外壁相连,所述底板(1)的上表面安装有夹座(9),所述夹座(9)的...
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