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How can surface loading conditions be applied to a wall?

Answer: Area loading conditions may be applied using one of the following methods:

1. Mesh Wall at locations where you expect loading to vary via Edit > Edit Shells > Divide Shells.
2. Concentrated loads – Apply concentrated moments and/or joint loads by selecting the joint and going to Assign > Joint Loads > Force.
3. Line loads – For linear distributed loading, define a frame object with negligible structural properties, then draw these frames where line loads are to be applied. Select the frame objects and go to Assign > Frame loads > Distributed, then scale their magnitude according to tributary allocation. 
4. Area loads – Similarly, apply shell loads by selecting the wall and going to Assign > Shell loads > Uniform or Non-Uniform loads