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[Base] Frame14 - Eigenvalue Problem

[Base] Frame14 - Eigenvalue Problem



App

Object Link: https://openbrim.org/objidtknzvco15mzx0yalkyr1.project

Library

Object Link: https://openbrim.org/objid47wnwbqova7mrmnpr94w5a.libobj



Mode

Output Parameter

Model

SAP 2000

OpenBrIM

Independent

Percent Difference

(SAP 2000 vs Independent)

Percent Difference

(OpenBrIM vs Independent)

1

First

mode

for

bending

about

the

Z-axis





Period, sec

A(1 elem)

0.054547AM1:





0.038005

+43.53%AM1;

B(2 elems)

0.042333BM1:+11.39%BM1;

C(4 elems)

0.039090CM1:+2.85%CM1;

D(6 elems)

0.038485

DM1:

+1.26%DM1;

E(8 elems)

0.038273EM1:+0.71%EM1;

F(10 elems)

0.038175FM1:+0.45%FM1;

G(96 elems)

0.038003GM1:-0.01%GM1;

2

First

mode

for

bending

about

the

Y-axis





Period, sec



A(1 elem)0.036364AM2:





0.025337


+43.52%AM2;
B(2 elems)0.028222BM2:+11.39%BM2;
C(4 elems)0.026060CM2:+2.85%CM2;
D(6 elems)0.025657DM2:+1.26%DM2;
E(8 elems)0.025516EM2:+0.71%EM2;
F(10 elems)0.025450FM2:+0.45%FM2;
G(96 elems)0.025335GM2:-0.01%GM2;

3

Second

mode

for

bending

about

the

Z-axis





Period, sec


A(1 elem)N.A.N.A.





0.006064


N.A.N.A.
B(2 elems)0.008218BM3:+35.52%BM3;
C(4 elems)0.006651CM3:+9.68%CM3;
D(6 elems)0.006330DM3:+4.39%DM3;
E(8 elems)0.006214EM3:+2.47%EM3;
F(10 elems)0.006160FM3:+1.58%FM3;
G(96 elems)0.006065GM3:+0.02%GM3;

4

Second

mode

for

bending

about

the

Y-axis




Period, sec

A(1 elem)N.A.N.A.





0.004043

N.A.N.A.
B(2 elems)0.005479BM4:+35.52%BM4;
C(4 elems)0.004434CM4:+9.67%CM4;
D(6 elems)0.004220DM4:+4.38%DM4;
E(8 elems)0.004143EM4:+2.47%EM4;
F(10 elems)0.004107FM4:+1.58%FM4;
G(96 elems)0.004043GM4:0%GM4;

5

Third

mode

for

bending

about

the

Z-axis




Period, sec

A(1 elem)N.A.N.A.





0.002165

N.A.N.A.
B(2 elems)N.A.N.A.N.A.N.A.
C(4 elems)0.002511CM5:+15.98%CM5;
D(6 elems)0.002321DM5:+7.21%DM5;
E(8 elems)0.002254EM5:+4.11%EM5;
F(10 elems)0.002222FM5:+2.63%FM5;
G(96 elems)0.002166GM5:+0.05%GM5;


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