Product Technical Guides : US-EN Cast-In Anchor Channel Fastening Technical Guide | Page 100

1. Anchor Channel Systems 2. HAC Portfolio 3. HAC Applications 4. Design Introduction 5. Base material 6. Loading Criteria Symbol 4,420 (19.7) M20 lb (kN) 5,425 (24.1) M12 lb (kN) 1,920 (8.5) 2 M16 lb (kN) 4,420 (19.7) M20 lb (kN) 5,425 (24.1) Anchor Channel Criteria Modulus of elasticity of the EDGE plate E Minimum specified ultimate strength f uta Minimum specified yield strength Nominal rebar steel strength M16 Strength reduction factor for Rebar steel tensile strength - 0.55 f ya N s,r N s,c ϕ EDGE C ksi 30,458 (MPa) (210,000) psi 79,750 (MPa) (550) psi 72,500 (MPa) (500) lb (kN) 12,713 (56.55) lb (kN) - 0.75 2.3.12 D  ESIGN INFORMATION FOR HAC S EDGE AND HAC S EDGE C CONCRETE BREAKOUT IN PERPENDICULAR SHEAR Table 2.3.12.1 — S  hear concrete strength design information for HAC S EDGE and HAC S EDGE C with Hilti Channel Bolts (HBC-C and HBC-C-N) when shear load acts towards the EDGE Plate. 0.65 HAC-50 S - Units M16 0.55 Symbol EDGE M12 M12 ϕ Table 2.3.11.1 — S  teel strength design information for HAC S EDGE and HAC S EDGE C rebar edge confinement plate (EDGE and EDGE C plate) Nominal connection strength of rebar-EDGE plate M20 Strength reduction factor for failure of connection between channel lips and channel bolts 1 (continuous inspection) 2.3.11 HAC S EDGE AND HAC S EDGE C PLATE STEEL STRENGTH INFORMATION Anchor Channel M20 Criteria k EDGE / k EDGE C Imperial units 880 720 SI units (415) (340) Exponent for the edge distance in the basic value of the concrete edge breakout x 1 - 0.97 Exponent for the concrete strength in the basic value of the concrete edge breakout x 2 - 0.18 Exponent for the modification factor to account for influence of member thickness on concrete edge breakout strength for anchors channels loaded in shear x 3 - 0.25 Exponent for the modification factor for corner effects on concrete edge breakout strength for anchor channels loaded in shear x 4 - 0.11 Modification factor for the critical anchor spacing in combination with the EDGE plate α 1,V - 0.60 Coefficient for pry out strength k cp - 2.0 Modification factor for HAC EDGE to control splitting ψ cp - 1.0 Modification factor to account for influence of cracked or uncracked concrete for concrete edge breakout strength ψ c,V - 1.0 ϕ - 0.70 HAC-50 S EDGE C Strength reduction factor for shear, concrete failure modes 1 HAC-50 S EDGE 1 T  he tabulated value of ϕ applies when both the load combinations of Section 1605.2 of the IBC, ACI 318-14 Section 5.3 or ACI 318-11 Section 9.2 are used and the requirements of ACI 318-14 17.3.3(c) or ACI 318-11 D.4.3(c), as applicable, for Condition B are met. Condition B applies where supplementary reinforcement is not provided. 100 Cast-In Anchor Channel Product Guide, Edition 1 • 02/2019 101 See chapter 9 for additional design information for HAC S EDGE and HAC S EDGE C Units Symbol 1 T  he tabulated value of ϕ applies when the load combinations of Section 1605.2 of the IBC, ACI 318-14 Section 5.3 or ACI 318-11 Section 9.2 are used. 2 In case of continuous inspection the value for V sl,x for the size M12 can be taken for all channel sizes HAC-40 F through HAC-70 F as V sl,x = 2,021 lb (9.0 kN). Factor to account for the influence of plate size and rebar diameter on concrete edge breakout strength in shear for the EDGE plate M16 lb (kN) 14. Design Example ϕ 1,920 (8.5) 13. Field Fixes Strength reduction factor for failure of connection between channel lips and channel bolts 1 (periodic inspection lb (kN) 12. Instructions for Use V sl,x,seis M12 2 11. Best Practices Nominal shear steel strength of connection between channel lips and channel bolts for seismic design HAC-50 S EDGE HAC-50 S EDGE C 10. Design Software V sl,x HAC-40 EDGE Lite 9. Special Anchor Channel Design Nominal shear steel strength of connection between channel lips and channel bolts Units 8. Reinforcing Bar Anchorage Table 2.3.10.3 — S  teel strength design information for shear acting in longitudinal direction of the channel axis for HAC S EDGE and HAC S EDGE C with Hilti Locking Channel Bolts (HBC-C-N) 7. Anchor Channel Design Code