Post Installed Anchor Design: wedge expansion
0.625in#4.625in#4000psi#uncracked to 0.875in#3.875in#4000psi#uncracked
Post-installed concrete anchor design capacities per ACI 318-19 Chapter 17: wedge expansion, sleeve expansion, screw (Tapcon-type), adhesive threaded rod, and undercut anchors; tension and shear LRFD design strengths for 3/8 to 1 inch diameters in 3000-6000 psi concrete, cracked and uncracked conditions
| anchor type | anchor id | condition | diameter in (in) | effective embedment hef in (in) | embedment depth in (in) | fc psi (psi) | max torque ft lb (ft-lb) | min edge distance in (in) | min spacing in (in) | phi shear (dimensionless) | phi tension (dimensionless) | shear capacity lb (lb) | shear capacity type | standard | tension capacity lb (lb) | tension capacity type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| wedge expansion | 0.625in#4.625in#4000psi#uncracked | uncracked | 0.625 | 4.5 | 4.625 | 4,000 | 60 | 3.75 | 6.25 | 0.65 | 0.7 | 1,870 | steel | ACI 318-19 Ch.17; deep embedment 5/8 in; Fastenere data | 2,524 | concrete breakout |
| wedge expansion | 0.75in#3.375in#3000psi#cracked | cracked | 0.75 | 3.25 | 3.375 | 3,000 | 85 | 4.5 | 7.5 | 0.65 | 0.7 | 2,785 | steel | ACI 318-19 Ch.17; cracked f'c=3000 | 1,881 | concrete breakout |
| wedge expansion | 0.75in#3.375in#3000psi#uncracked | uncracked | 0.75 | 3.25 | 3.375 | 3,000 | 85 | 4.5 | 7.5 | 0.65 | 0.75 | 2,785 | steel | ACI 318-19 Ch.17; ICC-ES ESR-4266 3/4 in carbon steel | 3,135 | steel |
| wedge expansion | 0.75in#3.375in#4000psi#cracked | cracked | 0.75 | 3.25 | 3.375 | 4,000 | 85 | 4.5 | 7.5 | 0.65 | 0.7 | 2,785 | steel | ACI 318-19 Ch.17; cracked f'c=4000 | 2,171 | concrete breakout |
| wedge expansion | 0.75in#3.375in#4000psi#uncracked | uncracked | 0.75 | 3.25 | 3.375 | 4,000 | 85 | 4.5 | 7.5 | 0.65 | 0.75 | 2,785 | steel | ACI 318-19 Ch.17; 3/4 in f'c=4000 psi | 3,619 | steel |
| wedge expansion | 0.75in#3.375in#6000psi#uncracked | uncracked | 0.75 | 3.25 | 3.375 | 6,000 | 85 | 4.5 | 7.5 | 0.65 | 0.75 | 2,785 | steel | ACI 318-19 Ch.17; 3/4 in f'c=6000 psi | 4,430 | steel |
| wedge expansion | 0.75in#5.625in#4000psi#uncracked | uncracked | 0.75 | 5.5 | 5.625 | 4,000 | 85 | 4.5 | 7.5 | 0.65 | 0.75 | 2,785 | steel | ACI 318-19 Ch.17; deep embedment; Fastenere/Confast data | 3,619 | steel |
| wedge expansion | 0.75in#5.625in#6000psi#uncracked | uncracked | 0.75 | 5.5 | 5.625 | 6,000 | 85 | 4.5 | 7.5 | 0.65 | 0.75 | 2,785 | steel | ACI 318-19 Ch.17; deep embedment 3/4 in; f'c=6000 | 4,430 | steel |
| wedge expansion | 0.875in#3.875in#3000psi#uncracked | uncracked | 0.875 | 3.75 | 3.875 | 3,000 | 110 | 5.25 | 8.75 | 0.65 | 0.75 | 4,120 | steel | ACI 318-19 Ch.17; 7/8 in wedge anchor generic values | 4,290 | steel |
| wedge expansion | 0.875in#3.875in#4000psi#uncracked | uncracked | 0.875 | 3.75 | 3.875 | 4,000 | 110 | 5.25 | 8.75 | 0.65 | 0.75 | 4,120 | steel | ACI 318-19 Ch.17; 7/8 in f'c=4000 psi | 4,955 | steel |
What else is in Engineering Database
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators