This article explains what a top and bottom fixing kit is, and when to use it.
Introduction
Envirocon offers a comprehensive approach to reinforcing Interbloc walls over 1800mm or three blocks high. This is achieved through the utilisation of vertical steel reinforcing components, collectively referred to by Envirocon as "fixing kits."
Understanding Fixing Kits
The term "fixing kits" in the context of Interbloc refers to a combination of components specifically designed to vertically reinforce walls. Vertical reinforcement is crucial for walls exceeding a height of 1800mm, or three blocks, and serves two primary purposes.
1. Standard Fixing Kits
The standard fixing kits increases the out-of-plane bending capacity of the wall by securely tying it into the underlying foundation. This design facilitates the creation of a cantilever wall, ensuring structural stability.
2. Top and Bottom Fixing Kits
Top and bottom fixing kits tie gravity walls together, preventing accidental block rotation, especially in situations where machinery interacts with the wall. These kits are essential for maintaining the integrity of the wall structure.
Components of Top and Bottom Fixing Kits
The primary function of top and bottom fixing kits is to prevent accidental block rotation or dislodgement. To accomplish this, Interbloc employs vertical reinforcing bars with diameters typically ranging from 12 to 16mm. Notably, these bars are often non-galvanized for cost efficiency, especially when the structure is not expected to have an extended design life.
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Block Stability: The top and bottom fixing kits effectively tie the wall together, ensuring stability and minimising the risk of block rotation.
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Material Selection: Interbloc's choice of 12 or 16mm diameter vertical reinforcing bars is based on their structural efficacy in preventing accidental block displacement. Engineers may opt for a larger diameter bar in specific situations.
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Application Flexibility: Top and bottom fixing kits can be easily removed to facilitate reconfiguration of walls.
Refer to the video below on how top and bottom fixing kits are installed.