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h2. Should cracking factors be applied to floor slabs? *Answer:* Cracking factors need not be applied to floor slabs unless special conditions exist, such as when shear walls are close to one another and the [shell|kb:Shell] object acts as a coupling/link beam. However, this is rarely the case in that floor slabs typically do not contribute to the lateral capacity of the system. In fact, ACI prohibits such behavior in high seismic areas because flexural contribution from floor slabs may increase lateral stiffness to an unconservative extent. Floor slabs should however behave as diaphragms to transfer in-plane forces. {hidden-content} *Related Incident:* * {incident:no=46482|comment=Incident Title: Etabs Modelling} {hidden-content} h2. How is cracking modeled in a thin concrete arch dam composed of solid objects? *Answer:* Please see the [Material nonlinearity for solid objects|kb:Material nonlinearity for solid objects] article for information on modeling [nonlinear|kb:Nonlinear] [solids|kb:Solid]. h2. See Also * [kb:Modeling cracked-section properties] article * [Material nonlinearity for solid objects|kb:Material nonlinearity for solid objects] article * [Material nonlinearity for frame objects|kb:Material nonlinearity for frame objects] article |
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