Construction Notes
How It Works
Composite Action
The load carrying capacity of the Ultralintels increases significantly when they act compositely with the brickwork above. This additional strength depends on the number of brick courses applied and the tables provided in this brochure give an indication of the maximum spans in different configurations. The following instructions are important –
- Must be placed with the rough side on top to provide a proper key to the masonry above
- Must be propped at intervals not exceeding 1500mm until the masonry mortar has matured
The load charts provided in this brochure indicate the safe maximum span when Ultralintels are installed in various configurations.
Bearing Length
The minimum end bearing of the Ultralintel on the brickwork is 100mm for spans up to 1200mm and 150mm for longer spans.
Based on the assumption of a minimum brick crushing strength of 20 MPa.
