Parameters for calculation of creep coefficient

 

There are two options for calculation/input creep coefficient:

• automatic calculation (Type input of creep coefficient = Auto), where creep coefficient is calculated according to EN 1992-1-1, chapter 3.1.4(2) for following input parameters:

  • Relative humidity

  • Age of concrete at loading

  • Age of concrete at moment considered

  

  Except of these input parameters, automatic calculation of creep coefficient depends on material properties (mean compressive strength of concrete f_cm, type of cement), cross-section parameters (cross-sectional area A_c, the perimeter of the member in contact with the atmosphere u) and concrete stress level

• user input (Type input of creep coefficient = User value) and user can input directly value of creep coefficient

automatic calculated creep coefficient can be in each section of 1D member or in each element of 2D member different, because cross-sectional properties and material properties can be different in each section/member (haunch, arbitrary member, 2D member with variable thickness...)

type of creep coefficient and input parameters can be defined separately for each 1D and 2D member via Setting per member (1D concrete data and 2D concrete data)