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Frame 3D Format

Posted by Win Aung Cho on 27-Sept-2009

Contents

Space Frame Analysis (FEMKERN)

Input Data Format

:ELEMENT
2
10000  150000  150000 7500 0 1 2
6000 10000  10000 5500 0 2 3
:NODE
3
0 0 0 0 0 0 0 0 0
120 0 0 1 1 1 1 1 1
0 69.28 0 0 0 0 0 0 1
:FORCE
2
:NODAL_LOAD
1
2 0 -10 0 0 0 200
:MEM_LOAD
0
:NODAL_LOAD
0
:MEM_LOAD
1
1 0 0 -0.17 -0.17 0 0
:COMBINATION
1
1.4 1.7
Ref: Structural Analysis, R.C.Coates, M.G.Coutie, F.K.Kong (Page 230)

Out put Data Format

:LOADCASE_1
 No.       X      Y        Z        thx      thy      thz
:DISPLACEMENT
   1   0.0000   0.0000   0.0000   0.0000   0.0000   0.0000 
   2  -0.1514  -0.9368   0.0000   0.0000   0.0000   0.0269 
   3   0.0000   0.0000   0.0000   0.0000   0.0000  -0.0230 
    Fx       Fy       Fz       Mx       My       Mz
:ELEMENT FORCE
Element    1 
  12.620    2.654    0.000    0.000    0.000  125.675  -12.620   -2.654    0.000    0.000    0.000  192.801 
Element    2 
 -14.602   -0.052    0.000    0.000    0.000   -7.199   14.602    0.052    0.000    0.000    0.000    0.000 
  No.    Fx       Fy       Fz       Mx       My       Mz
:REACTION
    1  12.6202   2.6540   0.0000   0.0000   0.0000 125.6747 
    3 -12.6202   7.3460   0.0000   0.0000   0.0000  -0.0000 
:LOADCASE_2
 No.       X      Y        Z        thx      thy      thz
:DISPLACEMENT
   1   0.0000   0.0000   0.0000   0.0000   0.0000   0.0000 
   2  -0.1545  -0.9555   0.0000   0.0000   0.0000   0.0274 
   3   0.0000   0.0000   0.0000   0.0000   0.0000  -0.0235 
    Fx       Fy       Fz       Mx       My       Mz
:ELEMENT FORCE
Element    1 
  12.873   12.907    0.000    0.000    0.000  332.188  -12.873    7.493    0.000    0.000    0.000   -7.343 
Element    2 
 -14.894   -0.053    0.000    0.000    0.000   -7.343   14.894    0.053    0.000    0.000    0.000    0.000 
  No.    Fx       Fy       Fz       Mx       My       Mz
:REACTION
    1  12.8726  12.9070   0.0000   0.0000   0.0000 332.1882 
    3 -12.8726   7.4930   0.0000   0.0000   0.0000  -0.0000 
:LOADCOMB_1
 No.       X      Y        Z        thx      thy      thz
:DISPLACEMENT
   1   0.0000   0.0000   0.0000   0.0000   0.0000   0.0000 
   2  -0.4746  -2.9359   0.0000   0.0000   0.0000   0.0841 
   3   0.0000   0.0000   0.0000   0.0000   0.0000  -0.0722 
    Fx       Fy       Fz       Mx       My       Mz
:ELEMENT FORCE
Element    1 
  39.552   25.658    0.000    0.000    0.000  740.665  -39.552    9.022    0.000    0.000    0.000  257.437 
Element    2 
 -45.764   -0.163    0.000    0.000    0.000  -22.563   45.764    0.163    0.000    0.000    0.000   -0.000 
  No.    Fx       Fy       Fz       Mx       My       Mz
:REACTION
    1  39.5516  25.6575   0.0000   0.0000   0.0000 740.6646 
    3 -39.5516  23.0225   0.0000   0.0000   0.0000   0.0000 
:INIT
    2     3     2
:HISTORY
Band Width            6
No. of Support        2

Method of Analysis

Structural analysis is based on Finite Element Method. Stiffness properties of elements are derived using finite element formulation. Stiffness properties are evaluated accurately for the static loading and linear stress-strain relations. Beam, column and trussbar elements are connected via nodes. All external loads having 6-force components are acting inspace of 3-dimensional structure.

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