Concrete Anchor in Tension and Shear Near an Edge ACI 318-02 Calculator

Concrete Anchor Tension Pullout Force Design Calculator per ACI 318-02.

 Concrete Anchor in Tension and Shear Near an Edge ACI 318-02 INPUT DATA & DESIGN SUMMARY CONCRETE STRENGTH fc' = ksi SPECIFIED STRENGTH OF FASTENER fut = ksi ???????? (The strength of most fastenings is likely to be controlled by the embedment strength rather ???????? than the steel strength, so it is usually economical to use ASTM A307 Grade A fastener.) FACTORED DESIGN TENSION LOAD Nu = k FACTORED DESIGN SHEAR LOAD Vu = k EFFECTIVE EMBEDMENT DEPTH hef = in FASTENER DIAMETER d = in FASTENER HEAD TYPE ?? ( 1=Square, 2=Heavy Square, 3=Hex, 4=Heavy Hex, 5=Hardened Washers ) DIST. BETWEEN THE FASTENER AND EDGE c = in ANALYSIS EFFECTIVE AREA OF FASTENER Ase = in2 BEARING AREA OF HEAD Ab = in2, ( or determined from manufactures's catalogs.) CHECK FASTENER TENSILE STRENGTH : = k Nu where : f = = k Nu where : f = ???????????? y3 term is 1.0 for location where concrete cracking is likely to occur. CHECK PULLOUT STRENGTH : = k Nu where : f = ???????????? y4 term is 1.0 for location where concrete cracking is likely to occur. CHECK SIDE-FACE BLOWOUT STRENGTH : (Since c > 0.4hef , this type of failure mode is applicable.) = k Nu where : f = DETERMINE DESIGN TENSILE STRENGTH : = K CHECK FASTENER SHEAR STRENGTH : = k Vu where : f = = k Vu where : f = ???????????? y7 term is 1.0 for location where concrete cracking is likely to occur. ???????????? AV/AVo and y6 terms are 1.0 for single shear fastener not influenced by more than one free edge. ???????????? l term is load bearing length of the anchor for shear, not to exceed 8d. = k Nu where : f = 0.75 ???????????? y3 term is 1.0 for location where concrete cracking is likely to occur. kcp = for hef > 2.5 in. DETERMINE DESIGN TENSILE STRENGTH : = K CHECK TENSION AND SHEAR INTERACTION : Since Nu 0.2 f Nn and Vu 0.2 f Vn Summary of Dimensional Properties of Fasteners Effective Fastener Gross Area of Bearing Area of Heads, Nuts, and Washers Diameter Area of Threaded ( Ab )?? ( in2 ) ( in ) Fastener Fastener Square Heavy Hex Heavy Hardened ( in2 ) ( in2 ) Square Hex Washers ???????? Techincal Reference: ?????????????????? 1. Ronald Cook, "Strength Design ?????????? of Anchorage to Concrete," PCA, ?????????? 1999. ???????? Notes: ?????????????????? For seismic Design Category C, D, E or F, the design strength of anchors shall be taken as 0.75 fNn & 0.75fVn. ?????????????????? (ACI318-02 D3.3.3, IBC 1913.3.3)