Verification Model
Egg Structure
Overview
The purpose of this test case is to validate some of the analysis of a structure with custom sections with the inclusion of shear area in the analysis, specifically:
- Deflection
- Forces/Moments
- Non-linear Analysis using small displacement theory
The Structural 3D results were compared against a third party analysis software.
Model Setup
The structure is a 168-node, 446-member frame structure supported by fixed supports. The building exterior consists of 5 rectangular sections, with the base section having a dimension of 120x220 and where every succeeding level, the depth of the section decreases by 20mm. The horizontal members, as well as the exterior braces, have a circular section with a diameter of 30. The rectangular sections are comprised of a material property labelled as 'coconut wood', while the circular sections are made of a material property labelled 'bamboo'.
Evaluation points: 10
Solve Type: Non-Linear Analysis (14 iterations)
Analysis Results
| Result |
Location |
SkyCiv |
Third Party |
Difference |
| Moment Z |
Member 78, End Node |
0.65826 kN-m |
0.65854 kN-m |
-0.04252% |
| Moment Y |
Member 72, Start Node |
0.61653 kN-m |
0.61735 kN-m |
0.13283% |
| Shear Y |
Member 106, Start Node |
0.10206 kN |
0.10167 kN |
0.38359% |
| Shear Z |
Member 105, End Node |
-3.07076 kN |
-3.10246 kN |
-1.02177% |
| Reaction Y |
Node 117 |
-20.20429 kN |
-20.21266 kN |
-0.04141% |
| Reaction Y |
Node 76 |
14.89095 kN |
14.89485 kN |
-0.02618% |
| Deflection X |
Node 86 |
5.04312 mm |
5.01348 mm |
0.59121% |
| Deflection Y |
Node 18 |
-0.11258 mm |
-0.11255 mm |
0.02665% |
| Rotation Z |
Node 116 |
0.00228 rad |
0.00227 rad |
0.44053% |
| Rotation X |
Node 110 |
-0.00133 rad |
-0.00133 |
0.00000% |
Result Screenshots
Showing global deflection results in the X through linear analysis
Showing global deflection results in the X through non-linear analysis
