Materials, coefficients, notation
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 (Tbl. 3.1).
| |
| |
| 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 annex.
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) |
