GB/T5224-2003

                                     J产户一  ~、

                                              d \

                                      ，‘‘，一 一于户

                            图3 1x7结构钢绞线外形示意图

                   表3 1x7结构钢绞线的尺寸及允许偏差、每米参考质里

                                         钢纹线参考                        中心钢丝直径d.
  钢绞线        公称直径          直径允许                         每米钢纹线
                                           截面积                         加大范围/%
   结构        D/mm         偏差/mm                      参考质量/（S/m）
                                           S/mm,                        不小于

                       l
              9.50                          54.8           430
                       一    十0.30
                                                                   I

                            -0.15
              11.10                         74.2           582
                                                                   一

              12.70                         98.7           775
   1又7

                                            140           1101

              1155..7200 士00..4200          150           1178            2.5

              17.80                         191           1Soo

              12.70                         112            890

 {1丫7）C       15.20         -+00..4200      165           1295

              18.00                         223           1750