闸墩预应力锚索计算,按高人指导输入线膨胀系数,用bef给单元加温度应力,结果每根锚索的应力都不一样且相差超过一个数量级,求高人指导,以下是预应力施加相关命令流!设置主、次锚索的材料参数EMS=1.8E11 AMS=140E-6 DENSMS=7850 XPZXSMS=12E-6 MSYL1=4000E3 MSYL2=2500E3 MP,EX,2,EMS MP,PRXY,2,0.3
!设置主、次锚索的材料参数
EMS=1.8E11
AMS=140E-6
DENSMS=7850
XPZXSMS=12E-6
MSYL1=4000E3
MSYL2=2500E3
MP,EX,2,EMS
MP,PRXY,2,0.3
MP,DENS,2,DENSMS
R,2,AMS*26
MP,EX,3,EMS
MP,PRXY,3,0.3
MP,DENS,3,DENSMS
R,3,AMS*16
!施加温度应力
TOFFST,273
TMS1=-MSYL1/(XPZXSMS*EMS*AMS*26)
TMS2=-MSYL2/(XPZXSMS*EMS*AMS*16)
CMSEL,S,MS1
TUNIF,20
BFE,MS1,TEMP,,TMS1
ALLSEL,ALL
CMSEL,S,MS2
TUNIF,20
BFE,MS2,TEMP,,TMS2
ALLSEL,ALL