What is BS EN 846-14 - Initial shear strength between a prefabricated composite lintel and the masonry above about?
BS EN 846-14 is the 14th part of the multiple series document that is applicable to ancillary components for masonry.
BS EN 846-14 specifies a method for determining the in-plane initial shear strength of the horizontal bed joint between the prefabricated part of a composite lintel and the masonry above it, using a specimen tested in shear.
Who is BS EN 846-14 - Initial shear strength between a prefabricated composite lintel and the masonry above for?
BS EN 846-14 on the determination of the initial shear strength between the prefabricated part of a composite lintel and the masonry above it is useful for:
- Builders
- Architects
- Contractors
- Manufacturers and suppliers of ancillary components
- Quality control inspectors
- Construction industries
- Testing laboratories of lintels
Why should you use BS EN 846-14 - Initial shear strength between a prefabricated composite lintel and the masonry above?
Masonry shear strength refers to the strength of masonry that has been subjected to shear forces. The initial shear strength of the horizontal bed joint between the prefabricated part of a composite lintel and the masonry above it is derived from the strength of small specimens tested to destruction. The specimens are tested in shear under a four-point load.
Two procedures A and B are included in BS EN 846-14. Procedure A comprises testing specimens at various precompressions, with a linear regression curve to zero prestress defining the initial shear strength. Procedure B comprises testing specimens at zero precompression, which will allow you to calculate a distinctive initial shear strength from the results using a simple or statistical analysis.
Overall, BS EN 846-14 helps you to determine the initial shear strength between the prefabricated part of a composite lintel and the masonry above it which will help you to improve the masonry processes.