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1D2DA.B.C.D.3?DABCD4B)Pa;(C)A105B104C1D5AABCD6pabsppvpaCpabs=p+pvp=pabs+papv=pa-pabsp=pabs-pV7,CA.B.C.8(B)ABC.D9CAB+C+10BABC11?C?ABCD12HB)A.B.C.D.e13CA.B.C.14.B)A.B.C.D.15CA.B.C.D.16B(A);(B)(C)(D)17A(A)(B)(C)(D)18?D(A)(B)(C)(D)19A(A)(B)(C)(D)20A(A)(B)(C)(D)21(A)(B)C(C)(D)22108kN/m2B(A)1kN/m2(B)2kN/m2(C)8kN/m2(D)10kN/m223A(A);(B);(C)24D)A.B.C.D.25B(A)(B)(C)26?C?(A)(B)(C)(D)27C(A)(B)(C)(D)28A(A)(B)(C)(D)29.C(A)(B)(C)30.B)(A)(B)(C)(D)31vlvD)A.vlv2B.vlv2C.vlv22D.vlv32BABCD33CABCD34Q=11=22AABCD35QQnCAQQnBQ=QnCQqp=nD362-3HCAH=ZB1PPH-=CH=Z+2-0wh+5-3whDH=Z+5-3wh37.AA.B.C.D.38.DA.B.C.D.39.AA.B.C.D.40.D)A.B.C.D.1012x3x4,Re2000,,,(x)5,6??????????????????????????782.0=?8x?10??????????????????11?????????12,,13X1415.,16(X)17183000?X?1920X21()22()23X24??25X)26?X?27()28(X)2930X3112345.6789101112??()13141.AA2.3.4.5.up6.7.8.9.(10.1-11-11-1Hs=Pa-P1/r11.12.13.14.Pa15.1.2.3.4.Re2000/dRe=64/ReRe=2000~4000/dReRe4000/dReRe/d/dRe5.6.7.8.9.10.Ne11.12.13.5.d1=200mmd2=100mmy=20mmm=103kg/m3Q6Q=sD=d=R7Q=30l/sz=18md1=150mm,d2=50mm,gv2202,Hm11.ABb=2m=30G=AAh=T