Hi. I am currently setting up a masonry design and wanted clarification on what the joint material is? In the software there are two options - M2, 5 to M9 & M10 to M20. I initially thought this was referring to the mortar classification from AS3700 however this only goes up to M4. Could you please provide some clarification?
Hello Joshua,
Thank you for reaching out to Hilti.
The masonry design in Profis Engineering is based on TR054, ETA-19/0160. The joint values that you see in Profis Engineering are the initial shear strength of the masonry determined by factor (Fvko) or to put it simply the strength of general purpose mortar. The vertical shear resistance of the junction of two masonry walls may be obtained from suitable tests for a specific project or it may be taken from an evaluation of test data. In the absence of such data, the characteristic vertical shear resistance may be based on fvko, where fvko is the shear strength under zero compressive stress. It may be determined from the values given in table 3.4 (as shown below), provided that general purpose mortars made in accordance with EN 1996-2 do not contain admixtures or additives. For more details on masonry design, refer to Page 40 Table 3.4 of EN1996-1-1 Eurocode 6; Design of Masonry Structures.
kind regards
Ask Hilti Team
Australia
