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Title: ACI PRC-421.2-21: Seismic Design of Punching Shear Reinforcement in Flat Plates - Guide

Author(s): Joint ACI-ASCE Committee 421

Publication: Technical Documents

Volume:

Issue:

Appears on pages(s): 36

Keywords:

DOI:

Date: 8/1/2021

Abstract:
During an earthquake, moments transferred at flat plate-column connections can produce significant shear stresses that increase their vulnerability to brittle punching shear failure. This guide provides recommendations for designing flat plate-column connections with sufficient ductility to withstand reversals of lateral drift without punching shear failure or loss of moment transfer capacity. Reinforced concrete flat plates with or without post-tensioning are discussed in this guide. Keywords: ductility; flat plate; post-tensioning; punching shear; seismic design; shear reinforcement; shear stud reinforcement.