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GEO5

Geotechnical software

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Materials, coefficients, notation

The following notation for material parameters is used:

fck - characteristic value of cylindrical strength of concrete in compression
fcd - design strength of concrete in compression
fcm - average value of tensile strength of concrete
fctk0,05 - lower value of the characteristic tensile strength of concrete
fctd - design strength of concrete in tension
fyk - characteristic strength of steel
fyd - design strength of steel in tension

The characteristic compressive strength of concrete is the basic input parameter given by the class of concrete – it serves to derive the remaining coefficients of reliability.

pro:
pro :

Standard values of coefficients αcc,γc,αct,γs  are built-in the program – these values can also be inputted by the user depending on the selected National supplement.

The most common notation for geometrical parameters:

b - cross-section width
h - cross-section depth
d - effective depth of cross-section
z - lever arm (arm of internal forces)



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