本团体标准规定了钢结构用自锁式单向高强螺栓连接副及其螺杆、套筒、锥头、垫圈的分类、技术要求、试验方法、检验规则、标志及包装,可适用于钢结构高强度螺栓连接中的闭口截面构件或一端不易触及的连接节点部位。自锁式单向高强螺栓克服了常规螺栓不能直接用于钢管等闭合截面的缺点,具有单边拧紧、施工快捷的优点,具有良好的工程应用前景,同时又系国内首创产品,之前国内也没有相关产品的国家或行业标准。本团体规范的发布可为自锁式单向高强螺栓在我国实际工程中的应用提供标准和依据。
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