Structural design

Permissible values (4 : 1 safety factor) of temporary fixing points in uncracked concrete

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c ... Max. thickness of attached part 5/8" (15 mm)

Tensile force Nperm. [kip]

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Shear force Vperm. [kip]

A   fck,cube,current > 1500 psi

B   fck,cube,current > 2000 psi

C   fck,cube,current > 2500 psi

D   fck,cube,current > 3000 psi

E   fck,cube,current > 3500 psi

F   fck,cube,current > 4000 psi

Boundary conditions
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Anchoring depth hef ... 3 3/4" (95 mm)

Building-element thickness hmin ... 8" (200 mm)

Distance from edge c ... 1’-4" (400 mm)

Distance from one another s ... min. 3’-11" (1200 mm)

The following simplified values may be used:

▪ Permitted load Fperm. in concrete with
fck,cube,current > 1500 psi: 2.1 kip

▪ Permitted load Fperm. in concrete with
fck,cube,current > 3500 psi: 3.3 kip

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