                       

                         ֽǿȺ͵ģοֵ
            -------------------------------------------------------
             ֽ     ֱֽd     ǿfsy     ģEs
                            (mm)           (MPa)          (GPa)
            -------------------------------------------------------
             R235(Q235)     8-20            235            210
             HRB335         6-50            335            200
             HRB400         6-50            400            200
             KL400          8-40            400            200 
            -------------------------------------------------------
             ע:淶¼F F.4


                  οֵ
            -------------------------------------------------------
            ǿȵȼ                C30        C35       C40
            ǿȱ׼ֵft(MPa)   3.0        3.2       3.5  
            ճնϵks(MPa/mm)        30         32        34
            Ӧsh  0.00045    0.0003    0.0002
            -------------------------------------------------------
            ע:淶¼F F.5


            һЩ涨(淶6.3)

           1.ʰѷ(1.0-2.5m)
             ϶ȣ<1mm͸ֽǿȷͨΪ0.6%-0.8%С
             ʣΪ0.7%һΪ0.6%
           2.ͺֽӦƸֽֱ
             Ϊ 12-20 mm 
           3.ֽļ಻250mmС100mm2.5
             ֽļ಻800mm