Concrete Anchor Tension Pullout Force Design Calculator

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

Group of Concrete Anchors Tension Pull Away Calculator 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 LOAD
Nu = 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 )
ECCENTRICITY
e = in
FASTENER CENTER-TO-CENTER SPACING s = in
DIST. FR. THE OUTER FASTENERS TO EDGE c = in
ANALYSIS
TOTAL NUMBER OF FASTENERS n =
EFFECTIVE AREA OF FASTENER Ase = in2
BEARING AREA OF HEAD
Ab = in2, ( or determined from manufactures's catalogs.)
CHECK HIGHTEST TENSILE STRENGTH :
= k
=
where : f =
CHECK CONCRETE BREAKOUT STRENGTH :
= k Nu
where : f =
       y3 term is 1.0 for location where concrete cracking is likely to occur.
CHECK PULLOUT STRENGTH OF SINGLE STUD :
= k Nu, max, 1 stud
where : f =
       y4 term is 1.0 for location where concrete cracking is likely to occur.
EVALUATE SIDE-FACE BLOWOUT :
c 0.4hef
Since the fasteners are located far from a free edge of concrete c>0.4hef this type of failure mode is not applicable.
REQUIRED EDGE DISTANCES AND SPACINGS TO PRECLUDE SPLITTING FAILURE :
Since a welded, headed fastener is not torqued, the minimun cover requirements of ACI 318 Sec. 7.7 apply.
CoverProvd CoverReqd
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.
     Note:
            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)

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