0

FIN EC

Online nápověda

Stromeček
Nastavení
Program:
Jazyk:

Material characteristics

Concrete

The material can be selected from the database of strength grades or specified manually by the user. The database contains strength grades according to the table 3.1 of EN 1992-1-1. Following characteristics have to be specified for user defined material:

fck

  • The characteristic compressive cylinder strength of concrete at 28 days

fctm

  • The mean value of axial tensile strength of concrete

Ecm

  • The secant modulus of elasticity of concrete

Automatic determination of fctm and Ecm according to the table 3.1 can be used for user defined material. For fck lower than or equal to 50MPa, fctm is calculated using formula

following formula is used for other cases:

The secant modulus of elasticity of concrete Ecm is calculated using following formula

Where the mean value of concrete cylinder compressive strength fcm is calculated using following formula

Reinforcement steel

The materail can be selected from the database of strength grades or specified manually by the user. Following characteristics have to be specified for user defined material:

fyk

  • The characteristic yield strength of reinforcement

Es

  • The design value of modulus of elasticity of reinforcing steel

The design values of material characteristics are used during the analysis. The design values are calculated by division of characteristic values (index starts with k) by partial factor for material properties γM. Values of γM are written in chapter "National annexes". Index of design values starts with d.

Vyzkoušejte si zdarma náš software.
Stáhněte si aktuální Edici zdarma.