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Punching shear

Table of Contents

Loading + column

Design shear force, V*

Design bending moment, M*vx

Design bending moment, M*vy

Column shape,

Column size, Dx

Column size, Dy

Column diameter, Ddia

Parameters

Concrete strength, f'c

PT P/A, σcp

Slab depth, D

Rebar diameter, db

Cover

Axis depth

Capacity reduction factor, Φ

Shear perimeter

Shear perimeter reduction

Ratio of column dims, βh

Average effective depth, dom

Critical shear perimeter, u

Concrete shear strength, fcv

Min transverse shear provided?

Ultimate shear capacity

Capacity x y
…for M*v=0, ΦVuo
…no closed fitments, ΦVu
…min closed fitments, ΦVu.min

Diagram