In the connection design of steel structure, the shear plate with high-strength bolt connection is extensively used at the flexible joint where the beam is connected to the weak axis of the column.

钢结构节点设计中，梁与柱弱轴方向的柔性连接常采用剪力板高强螺栓连接，螺栓群所承受的荷载有竖向力和偏心力矩。

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The results show that proper pressure and interlayer thickness can evidently improve the microstructure and mechanical properties, and the shear strength of joint is increased with the holding time.

结果表明：合适的压力和中间层厚度能有效改善接头的组织和力学性能，接头剪切强度随保温时间延长而提高。

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To overcome the shortcomings of the shear pin type joint and left-hand thread type joint, a sliding sleeve subsurface safety joint is developed.

为了克服剪钉式和反扣式两种安全接头的不足，研制出一种滑套式井下安全接头。

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