Wind and snow generator (esas.05)

 

esas.05

The esas.05 module Wind and snow generator supports the automatic generation of wind and snow loads on structures with 1D elements according to code recommendations. Based on a number of input parameters, climatic loads are generated on 2D frames - in 2D models or per plane in 3D models.

Highlights
Libraries for the selection of terrain category, zone, roof type, basic wind velocity, snow load on ground level, etc. All mentioned properties can be subsequently edited by the user.
Automatic redistribution of surface loads as line and point loads on selected 1D members.
Generation of climatic loads according to a number of (inter)national standards.
Analysis of buildings with flat, mono-pitched and duo-pitched roofs.
Each calculation step can be easily controlled by the engineer.
Pressure coefficients can be adapted to take into account geometry and other conditions not represented in the analytical model.

Input parameters

Pressure coefficients are calculated in function of the following properties of the structure and additional input parameters:

  • exposed area on roofs and walls - dimensions, inclination, etc.;
  • reference height of the structure;
  • land features and terrain conditions;
  • wind direction;
  • over- and under-pressure inside the structure;

Pressure coefficients may be adapted for both snow and wind loads.

Supported (inter)national standards

The following submodules are available:

  • esas.05.01 - 2D wind and snow generator according to EN 1991-1-3 and EN 1991-1-4:2005 (European standard);
  • esas.05.02 - 2D wind and snow generator according to DIN 1055 (former German standards - DIN 1055-4:2005-03/DIN 1055-4 Ber 1:2006-03 and DIN 1055-5:2005-07);
  • esas.05.03 - 2D wind and snow generator according to NEN 8100 (Former Dutch standard);
  • esas.05.05 - 2D wind and snow generator according to ASCE 7-05 (United States standard);
  • esas.05.06 - 2D wind and snow generator according to NV 65 (former French standard);
  • esas.05.07 - 2D wind and snow generator according to CSN (former Czech standard);
  • esas.05.11 - 2D wind and snow generator according to STN (Slovak standard);
  • esas.05.12 - 2D wind and snow generator according to IS (Indian standard);
  • esas.05.a - 2D wind and snow generators according all of the above;

11/02/2014