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1、《结构动力学》作业杜玉东2003205009!空间框架的动力分析/clear/title,kongjiankuangjiadyan/PREP7wide=0.5high=0.5DAMPRATIO=0.05ET,1,BEAM189ET,2,SHELL63R,1,0.1,,,,,,MP,EX,1,3e7MP,PRXY,1,0.2MP,DENS,1,2.5SECTYPE,1,BEAM,RECT,secA,0SECOFFSET,CENTSECDATA,wide,high,0,0,0,0,0,0,0,0K,1k,2,0,6k,3,6,6k,4,6,0kgen,2,1,4,1,0,0,3,4LSTR,1,5
2、LSTR,2,6LSTR,3,7lstr,4,8LSEL,allLATT,1,1,1,,,,,1LSEL,,,,ALLLESIZE,ALL,,,2,,,,,1LMESH,alla,5,6,7,8TYPE,2MSHAPE,0,2DMSHKEY,1AMESH,1egen,5,100,all,,,,,,,,0,0,3NUMMRG,ALLNUMCMP,ALL/SOLUnsel,s,loc,z,0D,all,ALLallsel/SOLU!模态分析ANTYPE,2MODOPT,SUBSP,8MXPAND,8,,,1SOLVEFINI!得到自振频率1*GET,FREQ1,MODE,1,FREQ/ESHAPE
3、,1.0/SOLUANTYPE,SPECTR!谱分析SPOPT,SPRSMDAMP,1,0.05,,,,,,SED,1SVTYPE,2,1FREQ,0.167,0.25,0.333,0.44444,0.5,0.667,1,1.25,1.667SV,,0.154350625,0.191590625,0.210210625,0.224175625,0.250716714,0.329514922,0.484352764,0.598723486,0
.786897371FREQ,2.222,10,100000SV,,1.034212766,1.034212766,0.3528!按7度多遇地震，地震影响
4、系数0.08第一组III场地TG＝0.45SRSS,0.01,DISPSOLVEFINISH/POST1/INP,,MCOMNSORT,U,SUM*GET,DMAX_SPE,SORT,,MAX!反应谱最大变形FINISH！时程分析/CONFIG,NRES,2000*SET,NT,1200*SET,DT,0.01*DIM,AC,,NT*VREAD,AC(1),tjb,TXT！输入地震波(F10.4)/SOLUANTYPE,TRANSTRNOPT,FULL*DO,I,1,1000ACEL,AC(I),0,0TIME,I*0.01OUTRES,ALL,ALLSOLVE*ENDDOFINISH/POS
5、T26FILENSOL,2,20,U,X,PLVAR,2,,,,,,,,,,STORE,MERGEXVAR,1PLVAR,2,*GET,DMAX_TRANS,VARI,2,EXTREM,VMAX,,!时程分析最大位移模态分析结果结构前八阶频率SETTIME/FREQLOADSTEPSUBSTEPCUMULATIVE10.9622211120.9622212231.490013344.961414454.961415565.097316675.115317785.1211188谱分析部分结果PRINTUNODALSOLUTIONPERNODE*****POST1NODALDEGREEOFFREE
6、DOMLISTING*****NODEUX20.12309E-02610.83655E-02890.12817E-011170.17251E-01MAXIMUMABSOLUTEVALUESNODE117VALUE0.17251E-01NODEUY20.31146E-03610.21167E-02890.32427E-021170.43647E-02PRINTMELEMENTSOLUTIONPERELEMENTELEM=1MXMYMZ112.25748.5090.38924E-04410.00439.4990.38912E-0430.26724E-040.10484E-030.11753E-07
7、ELEM=2MXMYMZ410.00439.4990.38901E-0427.757030.5090.38865E-0450.72749E-040.28555E-030.35249E-07ELEM=3MXMYMZ612.30248.5160.39682E-0499.987939.4930.39670E-0480.26782E-040.10450E-030.11664E-07时程分析结果顶层节点位移
