Temperature Load and Alpha Value for Mean Temperature

 Applies To 
 Environment: N/A
 Area: Modeling Solutions
 Subarea: Loading
 Original Author:Bentley Technical Support Group

I have to analyse a structure for temperature load. The temperature difference is 600 deg C. (from 0 deg C to 600 deg C). Which value of alpha I shall use, (i.e. alpha for 0 deg or alpha for 600 deg) for the analysis? Can I use an alpha value for the mean temperature?

Since STAAD is linear for material behavior, an alpha that results in the desired strain and displacement would be best. You can enter any positive value for alpha. The units of the alpha value must be the same as the temperature change units since STAAD does not explicitly enter temperature units.