海底管道抗震设计初探

(116622),P756P3150,,,2000km,20053000km,,,,,,,1888619697,,77.719101193287,,,,(API)()(DnV),,1,,,,,:,,,1933,53%,38%,,,,:1999206207,1937,6219998,,,,,,,:,,,,,,,,()(),22.1,(),,,:y(xt)=a0sin2T(t-xV)(1):=5y5x=-a02T1Vcos2T(t-xV)(2)VpVs(2),:p=-a02T1Vpcos2T(t-xVp)(3)s=-a02T1Vscos2T(t-xVs)(4)(1)t,A,y=52y5t2=A=-a0(2T)2sin2T(t-xV)(5)(3)(4)(5)1,:p.max=-a02T1Vp(6)s.max=-a02T1Vs(7)Amax=-a0(2T)2(8)-a0(2T)2=Kg(,K),(6)(7)(8),:p.max=KgT2Vp(9)s.max=KgT2Vs(10)Amax=Kg(11),,789,K0.10.20.42.2,,:E.max=p.maxE=KgT2VpE()(12)E.max=s.maxG=KgT2VsG()(13),E;G;T;VpVs72144:T(s)Vp(m/s)0.40.6250150()0.61.015050:Vs=(0.50.6)Vp,,(1)x:52y5x2=1=-a0(2T)21V2sin2T(t-xV):1min=-a0(2T)21V2p=KgV2p(14),,:B.max=1minr0=KgV2pr0(15),B.max;min;r0,:E.max=B.maxE=KgV2pr0E(16),,E.max=B.maxG=KgV2sr0G(17)r0,2.3,,,,,,Pm.H=(Wp+W0+Wpg)Amax=K(Wp+W0+Wp)(18),Wp;W0;Wp,12Pm.v,,Pm.v=12Pm.H,,,,,,;,;,,,,:PW.H=D204rsKn(19),D0;rs();n(),,PW.v=12PW.HKvK,,,8219998,,,,:PE.s=0.5rshD0K(20),h;0.5,Kv,K,,,,33.1:+,()(),,3.2,,,,1.71.8,[]E=(1.71.8)[s],,,(),[]E=0.96s;[]E=0.9s[]E=0.96s0.9s,:,1,;,,,0.98s,0.93s3.3,:,,,,,,,,,,,,11..:,19872,.().:,198592144