Module "Web plates"

The loads are divided into the dead load (weight of the plate) (g_0,k), permanent loads (g_1,k), imposed load (q_k), snow load (s_k) and wind load (w_k). This classification is necessary to automatically carry out calculations for different load case combinations.

The plate weight is calculated automatically. The calculation method can be selected in the settings/preferences window. The default calculation method is in accordance with ON B 1991-1-1. A unit weight of 5.5 kN/m³ is assumed in the calculation. However, the unit weight may also be calculated using:

• calculation based on the mean value of density of the chosen material
• calculation based on a user-defined density

When entering the imposed loads, one of the following categories has to be chosen:

• A: Areas for domestic and residential activities
• B: Office areas
• C: Areas where people may congregate (with the exception of areas defined under category A, B and D)
• D: Shopping areas
• E: Areas for storage and industrial activities
• F: Traffic and parking areas for light-duty vehicles
• G: Traffic and parking areas for medium-duty vehicles
• H: Roofs

When entering the snow load, the country code or an altitude above sea level where the structure will be located has to be specified:

• < 1000 m
• > 1000 m
• FIN, IS, N, S

Concentrated loads can be entered in the second table. The position can be defined whether by the local or global x-coordinate.

A summary of the verifications can be retrieved via the tab "Verifications". The utilisation ratios for various limit states are colour-coded indicating if the verification is fulfilled (green), not fulfilled (red) or a more accurate verification is needed (yellow). The locations of the maximum utilisation ratio and the governing combinations are compiled in the same way.

The tab "Utilisation" shows the distribution of the governing utilisation ratios along the beam. Areas in which the results may differ from the exact solution are marked here.

The tab "Stresses" shows the governing stresses resulting from the ULS verification. If a structural fire design was carried out, the governing stresses in case of fire are shown in the tab "Stresses in case of fire"

The tab "Deformations" shows the deformed system or the envelope given by the minimum and maximum deformation resulting from the governing SLS verification.