Short Wall Bracing
Benefits of Short Wall Bracing
- Tailored to fulfill the bracing requirements of open-plan housing, accommodating fewer internal walls and larger openings.
- Offers superior bracing capacity compared to conventional sheet bracing units.
- Requires fewer screws, reducing on-site labour.
- Available in standardised kits for easy installation.
Testing
Each Multinail Advance product undergoes rigorous testing to ensure its suitability and compliance with Australian engineering codes and standards.
Specifically, the hold-down capacity of the Stronghold tie-down brackets has undergone extensive in-house testing using glulam samples sourced from Australian suppliers.
The results from these tests exceeded the theoretical benchmarks established in accordance with AS1720.1.
Ultimate Bracing Capacity (kN)
Design parameters
Short wall bracing using a Stronghold tie-down bracket can provide various options depending on the bracing requirements, ranging from non-cyclonic to cyclonic regions.
The ultimate design capacity tables provided below are based on the parameters (more information, refer to AS1720.1) below:
- STD200 to be used in a 70mm wall frame; STD320 to be used in a 90mm wall frame
- Timber joint group JD4 and better
- Application of structural member Category 1 (AS1720.1 Table 2.2)
- When used in Category 2, apply a reduction factor of 0.94 for STD200 kits; no reduction factor is required for STD320 kits
- Concrete anchor (M20) shall have a minimum tie-down capacity of 36kN for STD200
- Concrete anchor (M24) shall have a minimum tie-down capacity of 54kN for STD320
- Precalculated values are for bracing only, non-load bearing internal walls.
- The design properties of GL grades specified in this brochure is based on standard characteristic values in Table 7.1 AS1720.1. While for GL15, it has a minimum design properties of:
- Bending (fb) = 38 MPa
- Shear (fs) = 4.2 MPa
- Compression parallel to grain (fc) = 33 MPa
- Modulus of Elasticity (E) = 15500 MPa
- Horizontal deflection control value is 12mm on top of the Glulam member
If design requirements fall outside of the parameters above, please get in
touch with Multinail Advance for advice.
Brackets inside
Table 3: Option 1 Ultimate Bracing Capacity (kN)
| GLT member size | Wall height (mm) | Kit | |||
| 2440 | 2590 | 2740 | 3000 | ||
| 230x65 | 3.2 | 3.0 | 2.8 | 2.4 | STD200-100 |
| 260x65 | 3.6 | 3.4 | 3.2 | 2.9 | |
| 295x65 | 4.1 | 3.9 | 3.6 | 3.3 | |
| 330x65 | 4.6 | 4.3 | 4.1 | 3.7 | |
| 360x65 | 5.0 | 4.7 | 4.5 | 4.1 | |
| 395x65 | 5.5 | 5.2 | 4.9 | 4.5 | |
| 425x65 | 5.9 | 5.6 | 5.3 | 4.8 | |
| 460x65 | 6.4 | 6.1 | 5.7 | 5.2 | |
| 495x65 | 6.9 | 6.5 | 6.0 | 5.6 | |
| 195x85 | 3.5 | 2.9 | 2.5 | 1.9 | STD320-100 |
| 230x85 | 5.0 | 4.7 | 4.1 | 3.1 | |
| 260x85 | 5.7 | 5.4 | 5.1 | 4.5 | |
| 295x85 | 6.5 | 6.1 | 5.8 | 5.3 | |
| 330x85 | 7.3 | 6.8 | 6.5 | 5.9 | |
| 360x85 | 7.9 | 7.5 | 7.0 | 6.4 | |
| 395x85 | 8.7 | 8.2 | 7.7 | 7.1 | |
| 425x85 | 9.4 | 8.8 | 8.3 | 7.6 | |
| 460x85 | 10.1 | 9.5 | 9.0 | 8.2 | |
| 495x85 | 10.9 | 10.3 | 9.7 | 8.9 | |
| 525x85 | 11.6 | 10.9 | 10.3 | 9.4 | |
| Legend for minimum grade | GL18 | GL17 | GL15 | GL13 | |
Brackets outside with a single stud wall
Table 4: Option 2 Ultimate Bracing Capacity (kN)
| GLT member size | Wall height (mm) | Kit | |||
| 2440 | 2590 | 2740 | 3000 | ||
| 230x65 | 4.2 | 3.7 | 3.1 | 2.4 | STD200-100 |
| 260x65 | 4.6 | 4.3 | 4.1 | 3.4 | |
| 295x65 | 5.1 | 4.8 | 4.5 | 4.1 | |
| 330x65 | 5.6 | 5.3 | 5.0 | 4.5 | |
| 360x65 | 6.0 | 5.7 | 5.3 | 4.9 | |
| 395x65 | 6.5 | 6.1 | 5.8 | 5.3 | |
| 425x65 | 7.0 | 6.6 | 6.2 | 5.7 | |
| 460x65 | 7.4 | 7.0 | 6.6 | 6.0 | |
| 495x65 | 7.9 | 7.4 | 7.0 | 6.4 | |
| 195x85 | 3.5 | 2.9 | 2.5 | 1.9 | STD320-100 |
| 230x85 | 5.8 | 4.8 | 4.1 | 3.1 | |
| 260x85 | 7.3 | 6.8 | 5.9 | 4.5 | |
| 295x85 | 8.0 | 7.6 | 7.1 | 6.5 | |
| 330x85 | 8.8 | 8.3 | 7.8 | 7.2 | |
| 360x85 | 9.5 | 8.9 | 8.4 | 7.7 | |
| 395x85 | 10.2 | 9.6 | 9.1 | 8.3 | |
| 425x85 | 10.9 | 10.3 | 9.7 | 8.9 | |
| 460x85 | 11.7 | 11.0 | 10.4 | 9.5 | |
| 495x85 | 12.5 | 11.7 | 11.1 | 10.1 | |
| 525x85 | 13.1 | 12.4 | 11.7 | 10.7 | |
| Legend for minimum grade | GL18 | GL17 | GL15 | GL13 | |
Brackets outside with a double stud wall
Table 5: Option 3 Ultimate Bracing Capacity (kN)
| GLT member size | Wall height (mm) | Kit | |||
| 2440 | 2590 | 2740 | 3000 | ||
| 230x65 | 4.4 | 3.7 | 3.1 | 2.4 | STD200-150 |
| 260x65 | 5.6 | 5.3 | 4.5 | 3.4 | |
| 295x65 | 6.1 | 5.7 | 5.4 | 4.9 | |
| 330x65 | 6.6 | 6.2 | 5.8 | 5.3 | |
| 360x65 | 7.0 | 6.6 | 6.2 | 5.7 | |
| 395x65 | 7.5 | 7.0 | 6.7 | 6.1 | |
| 425x65 | 7.9 | 7.4 | 7.0 | 6.4 | |
| 460x65 | 8.4 | 7.9 | 7.5 | 6.8 | |
| 495x65 | 8.9 | 8.4 | 7.9 | 7.2 | |
| 195x85 | 3.5 | 2.9 | 2.5 | 1.9 | STD320-150 |
| 230x85 | 5.8 | 4.8 | 4.1 | 3.1 | |
| 260x85 | 8.4 | 7.0 | 5.9 | 4.5 | |
| 295x85 | 9.6 | 9.0 | 8.5 | 6.5 | |
| 330x85 | 10.4 | 9.7 | 9.2 | 8.4 | |
| 360x85 | 11.0 | 10.4 | 9.8 | 9.0 | |
| 395x85 | 11.8 | 11.1 | 10.5 | 9.6 | |
| 425x85 | 12.5 | 11.7 | 11.1 | 10.1 | |
| 460x85 | 13.2 | 12.5 | 11.8 | 10.8 | |
| 495x85 | 14.0 | 13.2 | 12.5 | 11.4 | |
| 525x85 | 14.7 | 13.8 | 13.1 | 11.9 | |
| Legend for minimum grade | GL18 | GL17 | GL15 | GL13 | |
Brackets outside with a single and double stud wall
Table 6: Option 4 Ultimate Bracing Capacity (kN)
| GLT member size | Wall height (mm) | Kit | |||
| 2440 | 2590 | 2740 | 3000 | ||
| 230x65 | 4.4 | 3.7 | 3.1 | 2.4 | STD200-150 |
| 260x65 | 5.1 | 4.8 | 4.5 | 3.4 | |
| 295x65 | 5.6 | 5.3 | 5.0 | 4.5 | |
| 330x65 | 6.1 | 5.7 | 5.4 | 4.9 | |
| 360x65 | 6.5 | 6.1 | 5.8 | 5.3 | |
| 395x65 | 7.0 | 6.6 | 6.2 | 5.7 | |
| 425x65 | 7.4 | 7.0 | 6.6 | 6.0 | |
| 460x65 | 7.9 | 7.4 | 7.0 | 6.4 | |
| 495x65 | 8.4 | 7.9 | 7.5 | 6.8 | |
| 195x85 | 3.5 | 2.9 | 2.5 | 1.9 | STD320-150 |
| 230x85 | 5.8 | 4.8 | 4.1 | 3.1 | |
| 260x85 | 8.0 | 7.0 | 5.9 | 4.5 | |
| 295x85 | 8.8 | 8.3 | 7.8 | 6.5 | |
| 330x85 | 9.6 | 9.0 | 8.5 | 7.8 | |
| 360x85 | 10.2 | 9.6 | 9.1 | 8.3 | |
| 395x85 | 11.0 | 10.4 | 9.8 | 9.0 | |
| 425x85 | 11.7 | 11.0 | 10.4 | 9.5 | |
| 460x85 | 12.5 | 11.7 | 11.1 | 10.1 | |
| 495x85 | 13.2 | 12.5 | 11.8 | 10.8 | |
| 525x85 | 13.9 | 13.1 | 12.4 | 11.3 | |
| Legend for minimum grade | GL18 | GL17 | GL15 | GL13 | |
Timber web bracing truss
Table 7: Ultimate Bracing Capacity (kN/m)
| Width (mm) | Nominal wall height Up to 2700 (mm) | Kit |
| 450 - 900 | 5.4 - 10.8 | STD320-150 |
Short Wall Bracing
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