T-slot aluminum framing is a popular choice for many applications due to its versatility, durability, and cost-effectiveness. However, designing a structure that utilizes this type of framing requires careful consideration of various forces that can affect its performance. In this article, we will discuss moment, torsion, and friction forces and provide values applicable to specific configurations.
Assumptions
The values presented in this article are based on the following assumptions:
- For moment loading, a vertical force is applied 1000 mm from the joint.
- All bolts are assumed to be torqued to 10-13 Nm.
- For friction loading, a vertical force is applied directly on the joint, with negligible torsion or moment.
- The given values are valid for structural extrusions: ST-EXT-001-XXXX, ST-EXT-002-XXXX, and ST-EXT-005-XXXX.
Gusseted Joints
The following table presents friction, moment, and torsion forces for gusseted joints:
| Part Number | Friction (N) | Moment (Nm) | Torsion (Nm) |
|---|---|---|---|
| ST-GP-003-0001 / ST-HP-003-0001* | 2100 / 2100 | 127 / 127 | 0 / 100 |
| ST-GP-003-0001 / ST-HP-003-0001* | 2100 / 2100 | 112 / 112 | 0 / 100 |
| ST-GP-003-0001 / ST-HP-003-0001* | 2100 / 2100 | 127 / 127 | 0 / 100 |
*: These configurations assume no contact between the extrusions, which is common in assembled structures.
Plates
The following table presents friction, moment, and torsion forces for plate joints:
| Part Number | Friction (N) | Moment (Nm) | Torsion (Nm) |
|---|---|---|---|
| ST-GP-001-0005*** | 6300 | 235 | 70 |
| ST-GP-003-0001*** | 6300 | 725 | 85 |
| ST-HP-001-0001*** | 4200 | 325 | 45 |
***: The values for these configurations are for joints fixed by an assembly plate on a single side.
Other
The following table presents friction, moment, and torsion forces for other configurations:
| Part Number | Friction (N) | Moment (Nm) | Torsion (Nm) |
|---|---|---|---|
| ST-GP-002-0001 | 4200 | 100 | 165 |
| ST-GP-001-0004*** | 4200 | 215 | 65 |
| ST-HP-001-0001 | 2100 | 500 | 390 |
| ST-HP-001-0001 | 2100 | 100 | 390 |
Aluminum t-slot extrusions have become a popular alternative to welded steel for many applications, but they require careful design consideration. The values presented in this article provide guidance on moment, torsion, and friction forces that can occur in various configurations. When designing a structure using T-slot aluminum framing, it is essential to consider these forces to ensure the integrity and safety of your project.
If you need any help with your project or simply want to confirm some design parameters, you can ask our team of application engineers for free using Vention’s live chat or email us at: [email protected].
Vention V1 Extrusion Properties
The following table presents the properties of Vention V1 extrusions:
| Part Number | Length range (mm) | Yield strength (MPa) | Area moment of inertia (mm^4) |
|---|---|---|---|
| ST-EXT-001-XXXX (45x45mm) | 45–2,295 | 140 | 154,260 |
| ST-EXT-002-XXXX (45x90mm) | 45–3,330 | 140 | 1,105,496 Ix*** |
| ST-EXT-005-XXXX (90x90mm) | 45–3,330 | 140 | 1,840,143 |
*Area moment of inertia (or the second moment of area) describes a profile’s resistance to beam bending. A higher value indicates less deflection.
***Note: The 45 x 90 mm and 22.5 x 180 extrusions’ moment of inertia depend on the extrusion’s orientation.
I hope this article has provided you with valuable insights into moment, torsion, and friction forces in T-slot aluminum framing. If you have any further questions or concerns, please do not hesitate to reach out to us.