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h2. How is a composite steel slab modeled? *Extended Question:* We are modeling a steel slab supported by inverted T-beams |
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which are welded to the |
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bottom. For design purposes |
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, beam properties should consider |
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the slab |
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Answer: If you model the beam including the top flange, then stiffness/property modifiers could be assigned to the slab shell elements in the beam direction to reduce the stiffness and weight of the slab, such that the top flange is not double counted.
See Also
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as a top flange. If we assign these properties to the beam, how is the slab modeled? *Answer:* Once the beams are [modeled|kb:Modeling techniques] to include portions of the slab as a top flange, [property modifiers|kb:Property modifiers] may be assigned to the slab [shell|kb: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: \\ !Slab_overlapping_with_I-girder_top_flange.png|align=center,border=0! {center-text}Figure 1 - Composite slab{center-text} h1. See Also * [Composite section|tutorials:Composite section] tutorial h1. Attachments * [Hand sketches |^Slab_overlapping_with_i-girder_top_flange.pdf] (PDF) |