What is the meaning of the "Consider only increasing loads" feature in the wind load generator?

Answer

If the internal pressure is activated in the wind load generator (see Figure 01), the wind pressure on the internal surface of the building and the wind pressure on the external surface of the building is added (see Figure 02).

If the internal pressure has a positive effect when determining the reaction size (we + wi), it is usually set to zero. This can be done by means of the "Consider only increasing loads" feature in the load generator (see Figure 03).

Keywords

Internal pressure Increasing Wind load Increasing load

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