Online nápověda

Catalogue

• List of the most common manufacturers of masonry units. Arbitrary properties of masonry units can be selected for group "General".

Product

• The production range of selected manufacturer is displayed here. Following properties are filled automatically according to the manufacturer's documentation.

Kind

• Material of masonry units can be selected for "General" group in "Catalogue". This setting affects the determination of strength properties.

Group

• Group in accordance to the paragraph 3.1.1 of EN 1996-1-1 can be selected for "General" group in "Catalogue". Autoclaved aerated concrete, manufactured stone and dimensioned natural stone units areconsidered to be Group 1. Clay, calcium silicate and aggregate concrete units are sorted into Groups 2-4 in accordance with table 3.1 in EN 1996-1-1.

Category

• Category in accordance to the appropriate standard (EN 771-1 až EN 771-6) can be selected for "General" group in "Catalogue".

Strength f_b

• Value of the normalised mean compressive strength of masonry units. This value can be declared by the manufacturer or can be obtained by converting the compressive strength by using given procedure.

Load acts parallel to bed joints

• This setting affects the calculation of characteristic value compressive strength of masonry in accordance with paragraph 3.6.1.2.(3).

Perpend joints unfilled

• This setting affects the calculation of characteristic value compressive strength of masonry in accordance with paragraph 3.6.1.2.(5).

Masonry with longitudinal joint

• Factor K is reduced by 0,8 for masonry with mortar joint parallel to the face of the wall through all or any part of the length of the wall par. 3.6.1.2.(6)).

Kind

• Mortar type that affects formula for calculation of compressive strength f_k and also value of factor K.

Mortar type

• Selection whether the composition and manufacturing method is chosen in order to achieve specified ( "designed mortar") or whether the properties of which are assumed from the stated proportions of the constituents ("prescribed mortar"). This setting influences value of partial factor γ_M.

Strength f_m

• Compressive strength of mortar

Shell bedded masonry

• Setting for determination of strength reduction due to shell bedded masonry, where the units are bedded on two or more equal strips of general purpose mortar (paragraph 3.6.2.(5) of standard EN 1996-1-1). The ratio g/t has to be input, where g is the total width of the mortar strips and t is the thickness of the wall.

f_k

• characteristic value compressive strength of masonry

f_vko

• characteristic value of initial shear strength of masonry, under zero compressive stress

f_xk1

• Characteristic value of flexural strength of masonry having the plane of failure parallel to the bed joints

f_xk2

• Characteristic value of flexural strength of masonry having the plane of failure perpendicular to the bed joints

E

• Elastic modulus

γ_M

• Partial material factor

φ_M

• Creep coefficient, default values are calculated as an average of the ranges specified in the note for the chapter 3.7.4(2)

ρ

• Bulk density, this value is used for calculation of self-weight for load type "Vertically loaded wall/column". Default values are based on production catalogues' of producers