Stonebloc's shear key is a unique interlocking design that plays a key role in the performance of the Interbloc system.
How does the Stonebloc shear key work?
The Stonebloc shear key is a cruciform tongue and groove design that interlocks the blocks in both horizontal directions. This provides a strong and secure connection between the blocks, which helps to resist lateral forces.
What are the safety standards that the shear key meets?
The Stonebloc shear key meets the NZS3101 code Part 1 2006 Section 7.5, which is a safety standard for the shear strength of members - in this case ‘member’ means the Stonebloc block. NZS 3101 section 7.5, the provided shear strength of our shear key is always much larger than the lateral de-stabilizing action. The difference is so great that checking the capacity of the shear key is normally not a concern while designing.
Why is the shear key important?
The shear key is an important part of the Stonebloc wall system because it provides a number of benefits, including faster installation, increased strength, modular design, and a wide range of applications. In independent 'push' testing carried out by the School of Engineering at the University of Auckland, the shear key was found to engage as pressure was applied to the wall, as a result the wall acted as a homogenous structure.
Here are some additional benefits of Interbloc's shear key:
- Faster installation: The shear key makes it easy to install Stonebloc blocks, even by two people. This can save you time and money on your project.
- Increased strength: The shear key helps to increase the strength of the Stonebloc wall system, making it more resistant to lateral forces such as wind and earthquakes.
- De-constructable: The shear key allows Stonebloc blocks to be easily dismantled and reused, making it a sustainable and environmentally friendly building material.
- Reduces the risk of overturning: The shear key helps to reduce the risk of overturning by providing a strong connection between the blocks. This is important for retaining walls and other structures that are subjected to lateral forces.
- Improves seismic performance: The shear key can help to improve the seismic performance of a structure by resisting lateral forces caused by earthquakes.