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How are wind loads generated on a billboard according to Eurocode 1?

  • Software:

    Advance Design
  • Module

    All
  • Question:

    How are wind loads generated on a billboard according to Eurocode 1?
  • Type:

    Modeling
  • Difficulty:

    ***

Answer

According to Eurocode 1, the pressure of wind loads acting on outdoor panels can be modeled as a resultant force normal on the panel, with the application point at the gravitational center of the board with an horizontal eccentricity e = ±.25b.

How are wind loads generated on a billboard according to Eurocode 1

1. In the Advance Design starting window, click Configuration. In the "Localization settings" window, select the climatic standard EC 1 and correspondingly the "General" National Annex.

How are wind loads generated on a billboard according to Eurocode 1

2. After defining all the structural elements, create a windwall on the board outline in order to specify how the forces will be generated. In the windwall properties window, in the "Wind" section, select the "Outdoor panel" structure type.

How are wind loads generated on a billboard according to Eurocode 1

3. Create a new load case family: Wind EN - 1991-1-4.

How are wind loads generated on a billboard according to Eurocode 1

4. Next select the load case family, "Wind EN - 1991-1-4", and in the properties window, modify the wind speed and the terrain category as specified in the project.

Note:
If the "Building height" is not specified in the wind load case family properties window, Advance Design will automatically determine the structure height from the supports to the top margins of the billboard.

How are wind loads generated on a billboard according to Eurocode 1

5. Right click the load case family in the Pilot and choose "Automatic generation".

The Advance Design climatic generator will generate forces, each one being grouped in a load case corresponding to the wind directions and to the eccentricity sign of the applied loads.

How are wind loads generated on a billboard according to Eurocode 1

How are wind loads generated on a billboard according to Eurocode 1