在拉应力和应拉力交替的作用下，强度相对较低的螺栓会先产生裂纹，进而发生疲劳断裂。
Under the action of tensile stress and tensile stress, the bolt with relatively low strength will crack first, and then the fatigue fracture will occur.
每个贯穿螺栓固定件应该能够承受超过1,500磅以上的直接拉力。
Through-bolted fasteners shall withstand a direct pull force exceeding 1,500 lbs. per fastener.
每个贯穿螺栓固定件应该能够承受超过1,500磅以上的直接拉力。
Through-bolted fasteners shall withstand direct pull force exceeding 1,500 lbs. per fastener.
本文讨论了承压型高强度螺栓连接在同时承受剪力和杆轴方向拉力时其计算公式的应用。
This paper discusses the application of calculation formulas of high strength bolt connection in bearing type under the action of both shearing force and axial tensile force.
螺栓扭矩增大，接头区钢轨轨腰拉力、夹板应力、螺杆内应力都会增大，而钢轨位移会随着螺栓扭矩的增大而减小。
As the bolt tension increase, the tension of rail web, stress of joint bar and stress of joint bolt would increase accordingly, but the displacement of rail would become smaller.
本文对M27和M24两种直径高强度螺栓进行了复合应力系数测定和预拉力损失试验。
The composite stress factor and pre-tensile force loss of the two diameter high strength bolts of M27 and M24 are experimentally determined in the paper.
他将钢支架做成与标识匹配的形状，然后用拉力螺钉、链环和螺栓将其固定在柱子上。
He conformed the custom steel bracket to the shape of the sign and bolted it to the post with lag screws, links and eyebolt screws for the sign.
对受翻转力矩螺栓组联接的最大工作拉力进行测试与分析，提出符合实际受力状态的精确计算方法。
The maximum working pulling force of bolt-set connection under a bending moment is measured and analyzed. An accurate calculation method is presented, which tallies with the actual situation.
对受翻转力矩螺栓组联接的最大工作拉力进行测试与分析，提出符合实际受力状态的精确计算方法。
The maximum working pulling force of bolt-set connection under a bending moment is measured and analyzed.
大六角头高强度螺栓连接副扭矩系数的检测，扭剪型高强度螺栓连接副坚固预拉力的检测，高强度螺栓连接磨擦面抗滑移系数的检测，是钢结构材料验收中的重要测量。
To determine the anti-slip coefficient of the high-strength bolt which connects components of friction surface, it is screwed and determined by torsion and tensile testing machines respectively.
大六角头高强度螺栓连接副扭矩系数的检测，扭剪型高强度螺栓连接副坚固预拉力的检测，高强度螺栓连接磨擦面抗滑移系数的检测，是钢结构材料验收中的重要测量。
To determine the anti-slip coefficient of the high-strength bolt which connects components of friction surface, it is screwed and determined by torsion and tensile testing machines respectively.
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