MIDAS高版本转低版本问题

midas高版本模型转化至低版本需要注意问题及参数变化举例(2015-11-03 23:02:18)midas高版本模型向低版本转换，直接打开是不行的，一般常用mct命令流的方式导入。但直接、一次性导入高版本midas的mct命令流也可能存在问题，主要是因为高版本的mct命令流中，某些命令的参数发生的变化。所以，为使模型准确，在导入时还得仔细比较下每条命令是否发生了参数的增减。以某座大跨度桥的计算模型为例，说明具体转化的步骤。同时，给出midas8.3.2版本与midas7.9.5在某些命令参数上的变化。（1）打开midas2011 7.9.5版，打开工具MCT命令窗口；（2）复制下midas8.3.2版的某条命令，如*SPRING 即节点弹性支承，黏贴至带下拉箭头的命令框，确认存在该条命令后，插入命令，此时midas会给出参数。midas8.3.2中的*SPRING命令为*SPRING; Point Spring Supports; NODE_LIST, Type, SDx, SDy, SDz, SRx, SRy, SRz, GROUP, FROMTYPE, EFFAREA, Kx, Ky, Kz; LINEAR; NODE_LIST, Type, Direction, Vx, Vy, Vz, Stiffness, GROUP, FROMTYPE, EFFAREA; COMP, TENS; NODE_LIST, Type, Multi-Linear Type, Direction, Vx, Vy, Vz, ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy, GROUP, FROMTYPE, EFFAREA; MULTImidas7.9.5中的*SPRING命令为：*SPRING; Point Spring Supports; NODE_LIST, Type, SDx, SDy, SDz, SRx, SRy, SRz, GROUP; LINEAR; NODE_LIST, Type, Direction, Vx, Vy, Vz, Stiffness, GROUP; COMP, TENS; NODE_LIST, Type, Multi-Linear Type, Direction, Vx, Vy, Vz, ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy, GROUP; MULTI注意到红色字体部分的参数是midas8.3.2版本中新增的，如果直接按8.3.2的格式输入后面的命令内容，将会提示错误，命令无法执行。此时只需将红色字体对应部分的参数值删去即可，一般不会影响模型。（3）常规的node，element命令一般不会有参数的变化，故可以整条语句一次性导入，到导入之前也还是需要提前做些比较。（4）随着相关命令一步步导入，midas窗口或树形菜单中也会增加相应内容，可以在一条命令输入完毕后对模型进行实时检查，确保不存在问题。（5）依次导入所有命令，实现midas模型由高版本向低版本的转化。附：给出一些命令参数变化的对比，不同之处用红字标出 MIDAS 7.9.5*BNDR-GROUP; Boundary Group; NAMEMIDAS 8.3.2*BNDR-GROUP; Boundary Group; NAME, AUTOTYPE MIDAS 7.9.5*STAGE-CTRL; Construction Stage Analysis Control Data; bLAST-FINAL, FINAL-STAGE, CPFC, bEXT_REPL, bCALC-CFF, bCALC-CSP, bAPPLY-IMF, ; line 1; bCONV, bTRUSS, bBEAM, bITD, iITD, GROUP, LTYPECC, bSAVE-OCS, bLFFC, LFFGR, ; line 1; bCHANGE-CABLE; line 1; bINC-NLA, iNLA-TYPE, bIEMF, iLSTEP, iMAXITER, bENEG, EV, bDISP, DV, bFORC, FV; line 2; bINC-PDL, iITER, TOL; line 3; bINC-TDE, bCNS, TYPE, iITER, TOL, bTTLE_CS, bRCE, bVAR, bTTLE_ES, bAPPLY-ELA; line 4; bOUCC, bITS, iITS, bATS, iT10, iT100, iT1K, iT5K, iT10K; line 5; bSD, iSDOPT, SDCONST, iBSC, bSDLE, GLC1, GLC2, .; line 6; LCNAME1, LCNAME2, LCNAME3, .; from line 7MIDAS 8.3.2*STAGE-CTRL; Construction Stage Analysis Control Data; bLAST-FINAL, FINAL-STAGE, CPFC, bEXT_REPL, bCALC-CFF, bCALC-CSP, bAPPLY-IMF, ; line 1; bCONV, bTRUSS, bBEAM, bITD, iITD, GROUP, LTYPECC, LTYPECC2, LTYPECC3, EREC1, EREC2, EREC3 ; line 1; bSAVE-OCS, bLFFC, LFFGR, bCAMBER, bCHANGE-CABLE; line 1; bINC-NLA, iNLA-TYPE, bIEMF, iLSTEP, iMAXITER, bENEG, EV, bDISP, DV, bFORC, FV; line 2; bINC-PDL, iITER, TOL; line 3; bINC-TDE, bCNS, TYPE, iITER, TOL, bTTLE_CS, bRCE, bVAR, bTTLE_ES, bAPPLY-ELA; line 4; bOUCC, bITS, iITS, bATS, iT10, iT100, iT1K, iT5K, iT10K; line 5; bSD, iSDOPT, SDCONST, iBSC, bSDLE, GLC1, GLC2, .; line 6; LCNAME1, LCNAME2, LCNAME3, .; from line 7;LCNAME1, LCNAME2, LCNAME3, .; from line 8; LCNAME1, LCNAME2, LCNAME3, .; from line 9MIDAS 8.3.2*DGN-MATL; Modify Steel(Concrete) Material; iMAT, TYPE, MNAME, DATA1; STEEL; iMAT, TYPE, MNAME, DATA2, R-DATA, FCI, bSERV, SHORT, LONG ; CONC; iMAT, TYPE, MNAME, DATA3, DATA2, R-DATA; SRC; iMAT, TYPE, MNAME, DATA5; STEEL(None) & KSCE-ASD05; DATA1 : 1, DB, CODE, NAME or 2, ELAST, POISN, FU, FY1, FY2, FY3, FY4;FY5, FY6, AFT, AFT2, AFT3, FY, AFV, AFV2, AFV3; DATA2 : 1, DB, CODE, NAME or 2, FC, CHK, LAMBDA; DATA3 : 1, DB, CODE, NAME or 2, ELAST, FU, FY1, FY2, FY3, FY4;FY5, FY6, AFT, AFT2, AFT3, FY, AFV, AFV2, AFV3; DATA4 : 1, DB, CODE, NAME or 2, FC; DATA5 : 3, ELAST, POISN, AL1, AL2, AL3, AL4, AL5, AL6, AL7, AL8, AL9, AL10;MIN1, MIN2, MIN3; R-DATA: RBCODE, RBMAIN, RBSUB, FY(R), FYSMIDAS 7.9.5*DGN-MATL; Modify Steel(Concrete) Material; iMAT, TYPE, MNAME, DATA1; STEEL; iMAT, TYPE, MNAME, DATA2, R-DATA, FCI, bSERV, SHORT, LONG ; CONC; iMAT, TYPE, MNAME, DATA3, DATA2, R-DATA; SRC; iMAT, TYPE, MNAME, DATA5; STEEL(None) & KSCE-ASD05; DATA1 : 1, DB, CODE, NAME or 2, ELAST, POISN, FU, FY1, FY2, FY3, FY4;FY5, FY6, AFT, AFT2, AFT3, FY, AFV, AFV2, AFV3; DATA2 : 1, DB, CODE, NAME or 2, FC; DATA3 : 1, DB, CODE, NAME or 2, ELAST, FU, FY1, FY2, FY3, FY4;FY5, FY6, AFT, AFT2, AFT3,