How is a composite steel slab modeled?
Extended Question: We are modeling a steel slab supported by inverted T-beams which are welded to the bottom. For design purposes, beam properties should consider the slab as a top flange. If we assign these properties to the beam, how is the slab modeled?
Answer: Once the beams are modeled to include portions of the slab as a top flange, property modifiers may be assigned to the slab shell objects along the beam direction to reduce slab stiffness and weight such that top-flange portions are not double-counted.
A sketch and overview is given as follows:
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Figure 1 - Composite slab
See Also
- Composite section tutorial
Attachments
- [Hand sketches |^Slab_overlapping_with_i-girder_top_flange.pdf] (PDF)