In some areas of the modeled downstand beams or ribs, there are also walls or pilasters. Is it necessary to separate and remove the downstand beams on the walls, or should they go through them?

Answer

Areas with dual stiffnesses should be avoided during the modeling. If a downstand beam and a wall are modeled at the same location, these elements divide the load transfer. A disadvantage of separating the members on the wall section is that singularities occur at this location. Moreover, the area of the load introduction from rib into the wall is at the ceiling height.

Thus, there is no optimal solution in this combined modeling of members and surfaces.
For small models, it is possible to alternatively model the downstand beams and carry out the design by means of the result beams.
 

Keywords

Modeling Downstand beam Rib Wall

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