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Title: 421.2R-07: Seismic Design of Punching Shear Reinforcement in Flat Plates

Author(s):

Publication: Technical Documents

Volume:

Issue:

Appears on pages(s): 26

Keywords: ductility; flat plate; punching shear; seismic design; shear reinforcement.

DOI:

Date: 3/1/2007

Abstract:

Note: A newer version of this document exists. This document was replaced by 421.2R-10.

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 report gives recommendations for designing flat plate-column connections with sufficient ductility to go through lateral drift without punching shear failure or loss of moment transfer capacity.