ACI 421.1: Guide for Shear Reinforcement for Slabs

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ACI 421.1-20

Author(s)/Editor(s): Joint ACI-ASCE Committee 421 | Size: 4.85 MB | Format: PDF | Quality: Original preprint | Publisher: ACI | Year: 2020 | pages: 28 | ISBN: 9781641950893

Tests have established that punching shear in slabs can be effectively resisted by reinforcement consisting of vertical rods mechanically anchored at top and bottom of slabs. ACI 318 sets out the principles of design for slab shear reinforcement and makes specific reference to stirrups and headed studs. This guide reviews available types and makes recommendations for their design. The application of these recommendations is illustrated through numerical examples.

Keywords:

column-slab connection; concrete flat plate; headed shear studs; moment transfer; prestressed concrete; punching shear; shear heads; shear stresses; slabs; two-way slabs.

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