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螺栓连接是角钢杆塔最为常用的节点形式.通过有限元计算,研究了受压时角钢螺栓节点的极限承载力,进而得到了螺栓节点受压时合理的减孔数.将有限元计算结果折算得到的减孔数与规范公式算得的减孔数进行了对比分析.分析结果表明,规范给出的减孔数的计算方法是偏于安全的.
Bolt connection is the most common node form of angle steel tower.The ultimate bearing capacity of angle steel bolt joint under compression is studied by finite element method and the reasonable number of holes is obtained when the bolt joint is compressed.The finite element calculation result is converted Of the number of holes and calculated by the standard formula to reduce the number of holes were analyzed.The results show that the standard calculation of the number of holes to be given is biased to safety.