Concrete Anchor Design: adhesive_rebar
Concrete anchor design data per ACI 318-19 Chapter 17. Covers cast-in and post-installed anchor types: cast-in headed bolt (F1554 Gr.36/55/105), cast-in J-bolt, cast-in headed stud (AWS/A108), expansion wedge anchor, expansion sleeve anchor, undercut anchor, adhesive threaded rod (AC308), adhesive rebar, and concrete screw anchor. Fields include nominal diameter, effective embedment hef, effective stress area Ase, bearing area Abrg, steel tensile strength Nsa, shear strength Vsa, concrete breakout Nb at f'c=4000 psi (kc=24 cast-in, kc=17 post-installed), pullout Np, critical edge distance cac, critical spacing, minimum member thickness, installation torque, phi factors for tension and shear, and seismic qualification. Sources: ACI 318-19 Ch.17, ACI 355.2/355.4, ASTM F1554, ASME B1.1, ICC-ES AC193/AC308.
| anchor type | record id | Fu ksi (ksi) | Fy ksi (ksi) | anchor area Ase in2 (in2) | critical edge distance cac in (in) | critical spacing in (in) | effective embedment hef in (in) | min member thickness in (in) | nominal diameter in (in) | nominal diameter mm (mm) | notes | phi shear | phi tension | seismic qualification | steel grade | steel shear strength lb (lb) | steel tensile strength lb (lb) | typical applications |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| adhesive_rebar | ADH_RB_500_01 | 90 | 60 | 0.31 | 11.25 | 15 | 7.5 | 15 | 0.5 | 12.7 | #4 rebar Ase=0.31 in2; fy=60ksi; fu=90ksi (min per ASTM A615); Nsa=27900 lb; post-installed rebar per ACI 318-19 Sec.17.2.3 and Sec.25; development length controls over concrete breakout; phi=0.65 bond; Pullout_Np not tabulated — development length approach | 0.65 | 0.65 | Yes | ASTM A615-Gr60 | 16,736 | 27,900 | slab extensions, shear wall extensions, seismic retrofit |
| adhesive_rebar | ADH_RB_625_01 | 90 | 60 | 0.44 | 14.25 | 19 | 9.5 | 19 | 0.625 | 15.9 | #5 rebar Ase=0.44 in2; hef~=15db ensures ductile failure; Nsa=39600 lb; phi=0.65 bond | 0.65 | 0.65 | Yes | ASTM A615-Gr60 | 23,742 | 39,600 | wall-to-footing connection, column splice, seismic upgrade |
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