Sample Model 3D Roof Frame
Overview
The purpose of this test case is to validate some of the analysis results of a 3D frame, specifically:
- Deflection
- Forces/Moments
- Linear Analysis
The Structural 3D results were compared against a third party analysis software.
Evaluation points: 3
Solve Type: Linear Analysis
Model Setup
The structure is a 29-node, 28-member tower, that are predominantly fixed connections, supported by a series of pinned supports. The tower consists of 6.35mm x 6.35mm section for the main supporting elements, and a 1.5875mm x 1.5875mm section for the web members. Each section is composed of two different custom material.
Analysis Results
| Result | Location | SkyCiv | Third Party | Difference |
|---|---|---|---|---|
| Moment Z | Member 17, Start Node | -5.4670 kN-m | -5.4726 kN-m | 0.10% |
| Shear Y | Member 23, End Node | -4.3390 kN | -4.3390 kN | 0.00% |
| Reaction Y | Node 9 | 16.03 kN | 16.05 kN | -0.12% |
| Deflection X | Node 6 | -0.0973 mm | -0.0974 mm | -0.10% |
| Deflection Y | Node 15 | -0.3227 mm | -0.3229 mm | -0.06% |
| Deflection Z | Node 4 | 0.1104 mm | 0.1094 mm | 0.91% |
Design Results
| Result | Location | SkyCiv | Third Party | Difference |
|---|---|---|---|---|
| Moment Capacity UR | Member 1 (K=1.0) | 0.093 | 0.093 | 0.00% |
| Shear Capacity UR | Member 17 (K=1.0) | 0.039 | 0.039 | 0.00% |
| Combined Axial | Member 22 (K=1.0) | 0.079 | 0.079 | 0.00% |
| Combined Axial | Member 14 (K=1.0) | 0.027 | 0.027 | 0.00% |
SkyCiv Free Frame Calculator
SkyCiv FREE Structural Frame Calculator will generate and find the bending moment and shear force diagrams of a 2D frame structure. The free version allows you to input frames with a maximum of 3 members with applied point loads and moments for 2D frame analysis. Give the calculator a try or sign up for free today to get started with the software!