Title:
421.2R-10: Guide to Seismic Design of Punching Shear Reinforcement in Flat Plates
Author(s):
Joint ACI-ASCE Committee 421
Publication:
Technical Documents
Volume:
Issue:
Appears on pages(s):
30
Keywords:
ductility; flat plate; post-tensioning; punching shear; seismic design; shear reinforcement; stud shear reinforcement.
DOI:
Date:
4/1/2010
Abstract:
During an earthquake, the unbalanced moments transferred at flat plate-column connections can produce significant shear stresses that increase the vulnerability of these connections to brittle punching shear failure. This guide provides recommendations for designing flat plate-column connections with sufficient ductility to withstand lateral drift without punching shear failure or loss of moment transfer capacity. This guide treats reinforced concrete flat plates with or without post-tensioning.