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本帖最后由 wypzf_8 于 2012-4-23 10:10 编辑
本人正在模拟一层混凝土框架结构的地震响应,需要做模态分析。
一层混凝土框架结构包括四根柱子,四根梁,一块板。
通过创建面,延伸面创建体(柱子),通过复制体,产生四根柱子;通过创建体,建立梁,通过复制体,产生四根梁;然后vglue胶结体;通过延伸面创建体,也就是创建板,然后胶结。
四根柱子与梁分离式划分,板整体式划分。混凝土采用solid65单元,钢筋采用link8单元。
网格能够划分过去,但模态分析出现错误。请高手指点。
以下为划分网格
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!划分网格!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
VSEL,ALL
VSEL,U,,,1
CM,BC,VOLU !定义组件梁柱BC,为划分梁柱做准备
VSEL,ALL !切割板,为了便于划分板
VSEL,S,,,1
WPOFF,,,c
VSBW,ALL
WPCSYS,-1
WPROTA,,,90
WPOFF,,,h2/2-c
VSBW,ALL
WPOFF,,,c
VSBW,ALL
*DO,I,1,num_b
WPOFF,,,Inc_b
VSBW,ALL
*ENDDO
WPOFF,,,c
VSBW,ALL
WPCSYS,-1
WPROTA,,-90,
WPOFF,,,b2/2-c
VSBW,ALL
WPOFF,,,c
VSBW,ALL
*DO,I,1,num_b
WPOFF,,,Inc_b
VSBW,ALL
*ENDDO
WPOFF,,,c
VSBW,ALL
CM,ban,VOLU
CMPLOT,ban,VOLU
!划分板
VATT,1,3,1
ESIZE,,2
MSHKEY,1
VMESH,ALL
CMSEL,S,BC,VOLU !划分梁柱子混凝土
VATT,1,,1
ESIZE,,2
VMESH,ALL
CMSEL,S,ZZJ,LINE !划分梁柱纵筋
CMSEL,A,BZJ,LINE
LATT,2,1,2
ESIZE,,2
LMESH,ALL
CMSEL,S,ZGJ,LINE !划分梁柱箍筋
CMSEL,A,BGJ,LINE
LATT,3,2,2
ESIZE,,2
LMESH,ALL
ALLSEL,ALL
NSEL,S,LOC,Z,H
D,ALL,ALL,0
FINISH
!!!!!!!!!!!!!!!!!!!!!!!!!!!模态分析!!!!!!!!!!!!!!!!!!!!!!!
/solu
ANTYPE,2
LUMPM,OFF
MODOPT,LANB,3
MXPAND,3, , ,1
SOLVE
FINI
错误信息:
*** WARNING *** CP = 1206.000 TIME= 00:03:32
Real constant 1 referenced by at least element types 1 and 2.
*** ERROR *** CP = 1210.094 TIME= 00:03:56
The computed element record length (838) does not match the actual
element record length (849) in the .ESAV file for element 21537 of
element type 65. Please try another element option. The error is
harmful only when running in parallel. The error was encountered in
sfelem.F. Please send the data leading to this operation to your
technical support provider, as this will allow ANSYS, Inc to improve
the program.
*** ERROR *** CP = 978.625 TIME= 23:08:06
The computed element record length (79) does not match the actual
element record length (68) in the .ESAV file for element 49683 of
element type 8. Please try another element option. The error is
harmful only when running in parallel. The error was encountered in
sfelem.F. Please send the data leading to this operation to your
technical support provider, as this will allow ANSYS, Inc to improve
the program.
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