1 螺纹连接计算目录起重机设计规范（箱形梁计算） ........................................................................................................................... 2附 1：螺栓的承载力 ................................................................................................................................................ 2㈠连接螺栓的抗剪承载力 ................................................................................................................................... 2㈡螺栓连接的抗拉承载力 ................................................................................................................................... 3㈢剪力和拉力共同作用下螺栓的承载力............................................................................................................ 4附 2：螺栓群计算 .................................................................................................................................................... 4㈠螺栓群轴心受剪 ............................................................................................................................................... 4㈡螺栓群偏心受剪 ............................................................................................................................................... 4㈢螺栓群在弯矩作用下受拉 ............................................................................................................................... 5㈣螺栓群偏心受拉 ............................................................................................................................................... 5㈤螺栓群受拉力、弯矩和剪力共同作用............................................................................................................ 5㈥螺栓连接计算公式 ........................................................................................................................................... 5附 3：螺旋螺纹连接（支撑） ..........................................
