???????????????
???????????????????
??????????????,?????и?Э????????????????????????,1994???100??,????????20?????,?й????????????????
?????,?????й???????????????и?Э???????,??1???????????199.45?????,?????????????????????210???????,1-9??????????????????????215????????
??????????????????
?????????????????????????
1?????????????1.95??105MPa???????????????????????????????
??1.96 19.3 19.1??/3=1.93??105MPa??
2?????????????????μ???????????????
??L=P*L*(1-e-(kx ???))/(kL ???)/Ay/Eg
???????????16*1800*8m??q690qd???????????????????
