受拉钢筋一二级抗震抗震锚固长度.doc

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1、混凝土强度等级C20直径等级8mm10mm12mm14mm16mm18mm20mm22mm25mm28mm一级钢（HPB300）36cm45cm54cm-----------------------------------二级钢（HRB335）35cm44cm52cm61cm70cm79cm87cm96cm109cm135cm混凝土强度等级C25一级钢（HPB300）31cm39cm47cm-----------------------------------二级钢(HRB335)30cm38cm46cm53cm61cm68cm76cm83cm95cm117cm

2、三级钢(HRB400)37cm46cm55cm64cm74cm83cm92cm101cm115cm142cm混凝土强度等级C30一级钢(HPB300)28cm35cm41cm-----------------------------------二级钢(HRB335)27cm33cm40cm47cm53cm60cm67cm73cm83cm103cm三级钢(HRB400)32cm40cm48cm56cm64cm72cm81cm89cm101cm124cm混凝土强度等级C35一级钢(HPB300)26cm32cm39cm------------------------

3、-----------二级钢(HRB335)25cm31cm37cm43cm50cm56cm62cm68cm78cm96cm三级钢(HRB400)29cm37cm44cm52cm59cm66cm74cm81cm92cm113cm混凝土强度等级C40一级钢(HPB300)23cm29cm35cm-----------------------------------二级钢(HRB335)23cm29cm35cm40cm46cm52cm58cm63cm72cm98cm三级钢(HRB400)27cm33cm40cm47cm53cm60cm67cm73cm80cm103c

4、m混凝土强度等级C45一级钢(HPB300)22cm28cm33cm-----------------------------------二级钢(HRB335)21cm26cm32cm37cm42cm48cm53cm58cm66cm81cm三级钢(HRB400)26cm32cm39cm45cm52cm58cm64cm71cm81cm99cm