()11,:p=01564MPa;t=150;Di=2000mm;Q235-B;10;C2=5mm(3mm2mm);=1100mm;C1=0mmGB150(5-1)=510mm,,,e==510mm,5mm,n=10mmGB150(3-3)pT=01705MPa;GB150(3-7)T=14114MPa;019S=21115MPa;T019S,,5mm,5mm,,,(n-C1)GB150(3-7)e,GB150(3-7)(1):T=pT[Di+(n-C1)]2(n-C1)(1),(1)70185MPa,GB150(3-7)14114MPa,,70185MPa,,GB150(5-2)e,GB150(5-2)(2):t=pc[Di+(n-C1)]2(n-C1)(2)(1),(2),:(1),,5,715mm,7515MPa,70185MPa,5(2)10,,(),GB150(3-3),14114MPa,70185MPa2,,100%,GB150(3-3),GB150(3-3),,GB150(3-3),,,,,,,,,GB150(3-3),GB150(3-3)21GB150(3-3),,(),(1125),,3255(200615)©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(3-3),,(3):pT=1125p[]n-C1[]te(3):(n-C1)/e;(n-C1);n,mm;C1,mm;e,mm,,1,(3)GB150(3-3),,1,(3),(1)(2)(3):(1)(2)t,(2)(3)pT,,(3),GB150(3-3)(3)(1)T,,,,,1125,(1)(2)(3),,,(3)GB150(3-3),(1125),,(3),,GB150(3-3)GB150(3-7),,,(3),,(3),(1)(14117MPa)(14114MPa)012%,31(2)GB150(5-2),,,,,(2)GB150(5-2),,GB150(5-2)(3),(n-C1),,(n-C1)/e110,(3)11251115()4255(200615)©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.