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h2. Why doesn't soil bearing change when I edit slab reinforcement? *ANSWER:* Nonlinear [cracked-section analysis|safe:Cracked-section analysis] must be performed for rebar to affect the stiffness of a model. This may be accomplished as follows: * ChooseSelect Run > Cracking Analysis, then choose the source of reinforcement which the software should use to calculate cracked-section properties. Options are available through Run > Cracking Analysis. * Create [load cases|kb:Load case] through Define > Load Cases, assign various [load patterns|kb:Load pattern], then select the Nonlinear Cracked Analysis type. * Use these load cases to check pressures and compare against allowable limits. * Modify the model as necessary and re-analyze until bearing stresses are acceptable. \\ \\ ** *NOTE* -- If a beam is added, the effect will depend on such factors as its location and stiffness. \\ \\ ** *NOTE* -- Increasing mat thickness is typically more efficient than adding reinforcement when looking to improve bearing pressure distribution. {hidden-content} *Related Incident:* * {incident:no=47194|comment=SAFE 12.3.2 design question} {hidden-content} h2. See Also * [safe:Modeling uplift and foundations on soil supports] article * [safe:Cracking] section h2. How do I report the foundation soil pressures? *Extended Question:* The Soil Pressures -- Enveloping Summary table is organized by Panel, but these labels do not match my foundation Area Labels. How do I find which foundation corresponds with which panel? Can I print a table of the results for enveloped soil pressures per each foundation Area? *ANSWER:* To identify panel location and geometry, select Tables > Results Summary > Panel Geometry. To obtain pressures based on area objects, select Tables > Nodal Results > Soil Pressures. An envelope load combination may be created to obtain results based on area objects. {hidden-content} *Related Incident:* * {incident:no=46800|comment=SAFE Foundation} {hidden-content} |
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