Punching checks (ACI 318-19 update)
Summary
When working to the 2019 version of the code the punching checks to ACI 318 checks are amended as follows:
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ACI 318-19 Section 22.6.4.3, Figure R22.6.4.3 - Modification of critical perimeters to take account of slab openings - Limit change from 10 h to 4h.
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Clause 22.6.5.2 - A new size modification factor λs has been considered in concrete shear strength calculation.