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This page is devoted to frequently asked questions (FAQ) related to Cracking. |
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Why do linear and nonlinear long-term cracked-analysis results differ?
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| *Related Incident:* * {incident:no=46437|comment=SAFE Long-Term Cracked Analysis} |
Should
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stiffness modifiers be applied to floor slabs?
Answer: Cracking factors Stiffness modifiers need not be applied to floor slabs unless special conditions exist, such as when shear walls are close to one another and the 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.
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