A three-element frame is subjected to seven load cases with different types of distributed and/or concentrated loads. The resulting displacements at specified joints are compared with independent hand calculated results.
Important Note: Only bending deformations are considered in the analysis. Shear and axial deformations are ignored. In SAP2000 this is achieved by setting the property modification factor for area to 1,000 and setting the property modification factor for shear area to 0.
Tested Features
- Calculation and application of
- Self load
- Projected, uniformly distributed load
- Application of
- Uniformly distributed load in global coordinates
- Uniformly distributed load in frame object local coordinates
- Trapezoidal and triangular distributed loads on frames
- Joint moments and forces
- Static analysis of frames under all of these loading types
Results Comparison
App Link:
https://openbrim.org/objidbziht8hjtl42cg0142gng8.project
Library Link:
https://openbrim.org/objidfugw1qrjq9cyalkier8eld.libobj
Load Case And Type | Output Parameter | OpenBrIM | SAP2000 | Independent | Percent Difference (SAP2000 vs Independent) | Percent Difference (OpenBrIM vs Independent) |
|---|---|---|---|---|---|---|
| 1 | Uz (jt. 3) (in) | -0.02639 | -0.02639 | -0.02639 | 0% | 0.00401% |
| 2 | Uz (jt. 3) (in) | 0.06296 | 0.06296 | 0.06296 | 0% | 0.00062% |
| 3 | Uz (jt. 3) (in) | 0.06296 | 0.06296 | 0.06296 | 0% | 0.00062% |
| 4 | Uz (jt. 3) (in) | -0.29631 | -0.29630 | -0.29630 | 0% | 0.00375% |
5 | Ux (jt. 2) (in) | 0.31256 | 0.31250 | 0.31250 | 0% | 0.02059% |
| 7 | Ux (jt. 2) (in) | 0.00651 | 0.00651 | 0.00651 | 0% | 0.02106% |
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