public IBoltBearing GetBearingBolt(double Diameter, BoltThreadCase ThreadType)
{
IBoltMaterial bm = null;
IBoltBearing bb = null;
CalcLog log = new CalcLog();
switch (MaterialId)
{
case "A325": bb = new BoltBearingGroupA(Diameter, ThreadType, log); break;
case "A490": bb = new BoltBearingGroupB(Diameter, ThreadType, log); break;
case "F1852": bb = new BoltBearingGroupA(Diameter, ThreadType, log); break;
case "A307": bm = new BoltA307Material(); bb = new BoltBearingThreadedGeneral(Diameter, ThreadType, bm, log); break;
case "A354GradeBC": bb = new BoltBearingGroupA(Diameter, ThreadType, log); break;
case "A354GradeBD": bb = new BoltBearingGroupB(Diameter, ThreadType, log); break;
case "A449": bb = new BoltBearingGroupA(Diameter, ThreadType, log); break;
case "F1554Grade105": bm = new ThreadedBoltMaterial(125.0); bb = new BoltBearingThreadedGeneral(Diameter, ThreadType, bm, log); break;
case "F1554Grade55": bm = new ThreadedBoltMaterial(75.0); bb = new BoltBearingThreadedGeneral(Diameter, ThreadType, bm, log); break;
case "F1554Grade36": bm = new ThreadedBoltMaterial(58.0); bb = new BoltBearingThreadedGeneral(Diameter, ThreadType, bm, log); break;
default: throw new Exception("Unrecognized bolt material. Check input");
}
return(bb);
}
public BoltBase(double Diameter, BoltThreadCase ThreadType,
ICalcLog log)
: base(log)
{
this.diameter = Diameter;
this.threadType = ThreadType;
}
public BoltBearingThreadedGeneral(double Diameter, BoltThreadCase ThreadType, IBoltMaterial material,
ICalcLog log = null)
: base(Diameter, ThreadType, log)
{
this.material = material;
nominalTensileStress = material.GetNominalTensileStress(ThreadType);
nominalShearStress = material.GetNominalShearStress(ThreadType);
}
public BoltBearingGroupB(double Diameter, BoltThreadCase ThreadType,
ICalcLog log = null)
: base(Diameter, ThreadType, log)
{
material = new BoltGroupBMaterial();
nominalTensileStress = material.GetNominalTensileStress(ThreadType);
nominalShearStress = material.GetNominalShearStress(ThreadType);
}
public BoltBearingThreadedGeneral(double Diameter, BoltThreadCase ThreadType, IBoltMaterial material,
ICalcLog log=null)
: base(Diameter, ThreadType, log)
{
this.material = material;
nominalTensileStress = material.GetNominalTensileStress(ThreadType);
nominalShearStress = material.GetNominalShearStress(ThreadType);
}
public BoltBearingGroupB(double Diameter, BoltThreadCase ThreadType,
ICalcLog log=null)
:base(Diameter,ThreadType,log)
{
material = new BoltGroupBMaterial();
nominalTensileStress = material.GetNominalTensileStress(ThreadType);
nominalShearStress = material.GetNominalShearStress(ThreadType);
}
public BoltSlipCriticalGroupA(double Diameter, BoltThreadCase ThreadType,
BoltFayingSurfaceClass FayingSurface, BoltHoleType HoleType,
BoltFillerCase Fillers, int NumberOfSlipPlanes, ICalcLog log, double PretensionMultiplier = 1.13):
base(Diameter,ThreadType,FayingSurface,HoleType,Fillers,NumberOfSlipPlanes,log,PretensionMultiplier)
{
material = new BoltGroupAMaterial();
nominalTensileStress = material.GetNominalTensileStress(ThreadType);
nominalShearStress = material.GetNominalTensileStress(ThreadType);
}
public BoltSlipCriticalGroupA(double Diameter, BoltThreadCase ThreadType,
BoltFayingSurfaceClass FayingSurface, BoltHoleType HoleType,
BoltFillerCase Fillers, int NumberOfSlipPlanes, ICalcLog log, double PretensionMultiplier = 1.13) :
base(Diameter, ThreadType, FayingSurface, HoleType, Fillers, NumberOfSlipPlanes, log, PretensionMultiplier)
{
material = new BoltGroupAMaterial();
nominalTensileStress = material.GetNominalTensileStress(ThreadType);
nominalShearStress = material.GetNominalTensileStress(ThreadType);
}
public double GetNominalShearStress(BoltThreadCase ThreadCase)
{
if (ThreadCase == BoltThreadCase.Included)
{
return 68.0;
}
else
{
return 84.0;
}
}
public BoltSlipCritical(double Diameter, BoltThreadCase ThreadType,
BoltFayingSurfaceClass FayingSurface, BoltHoleType HoleType,
BoltFillerCase Fillers, int NumberOfSlipPlanes, ICalcLog log, double PretensionMultiplier=1.13)
: base(Diameter, ThreadType, log)
{
this.fayingSurface = FayingSurface;
this.holeType = HoleType;
this.fillers = Fillers;
this.pretensionMultiplier = PretensionMultiplier;
this.numberOfSlipPlanes = NumberOfSlipPlanes;
}
public double GetNominalTensileStress(BoltThreadCase ThreadCase)
{
if (ThreadCase == BoltThreadCase.Included)
{
return(90.0);
}
else
{
return(90.0);
}
}
public BoltSlipCritical(double Diameter, BoltThreadCase ThreadType,
BoltFayingSurfaceClass FayingSurface, BoltHoleType HoleType,
BoltFillerCase Fillers, int NumberOfSlipPlanes, ICalcLog log, double PretensionMultiplier = 1.13)
: base(Diameter, ThreadType, log)
{
this.fayingSurface = FayingSurface;
this.holeType = HoleType;
this.fillers = Fillers;
this.pretensionMultiplier = PretensionMultiplier;
this.numberOfSlipPlanes = NumberOfSlipPlanes;
}
public double GetNominalTensileStress(BoltThreadCase ThreadCase)
{
if (ThreadCase == BoltThreadCase.Included)
{
return 113.0;
}
else
{
return 113.0;
}
}
public double GetNominalShearStress(BoltThreadCase ThreadCase)
{
if (ThreadCase == BoltThreadCase.Included)
{
return(54.0);
}
else
{
return(68.0);
}
}
public IBoltBearing GetBearingBolt(double Diameter, BoltThreadCase ThreadType)
{
IBoltMaterial bm = null;
IBoltBearing bb = null;
CalcLog log = new CalcLog();
switch (MaterialId)
{
case "A325": bb = new BoltBearingGroupA(Diameter, ThreadType, log); break;
case "A490": bb = new BoltBearingGroupB(Diameter, ThreadType, log); break;
case "F1852": bb = new BoltBearingGroupA(Diameter, ThreadType, log); break;
case "A307": bm = new BoltA307Material(); bb=new BoltBearingThreadedGeneral(Diameter, ThreadType, bm, log); break;
case "A354GradeBC": bb = new BoltBearingGroupA(Diameter, ThreadType, log); break;
case "A354GradeBD": bb = new BoltBearingGroupB(Diameter, ThreadType, log); break;
case "A449": bb = new BoltBearingGroupA(Diameter, ThreadType, log); break;
case "F1554Grade105": bm = new ThreadedBoltMaterial(125.0); bb = new BoltBearingThreadedGeneral(Diameter, ThreadType, bm, log); break;
case "F1554Grade55": bm = new ThreadedBoltMaterial(75.0); bb = new BoltBearingThreadedGeneral(Diameter, ThreadType, bm, log); break;
case "F1554Grade36": bm = new ThreadedBoltMaterial(58.0); bb = new BoltBearingThreadedGeneral(Diameter, ThreadType, bm, log); break;
default: throw new Exception("Unrecognized bolt material. Check input");
}
return bb;
}
public IBoltSlipCritical GetSlipCriticalBolt(double Diameter, BoltThreadCase ThreadType, BoltFayingSurfaceClass SurfaceClass, BoltHoleType HoleType, BoltFillerCase FillerCase, double NumberOfSlipPlanes)
{
CalcLog log = new CalcLog();
int NPlanes = (int)NumberOfSlipPlanes;
IBoltSlipCritical bsc = null;
switch (MaterialId)
{
case "A325": bsc = new BoltSlipCriticalGroupA(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "A490": bsc = new BoltSlipCriticalGroupB(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "F1852": bsc = new BoltSlipCriticalGroupA(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "A354GradeBC": bsc = new BoltSlipCriticalGroupA(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "A354GradeBD": bsc = new BoltSlipCriticalGroupB(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "A449": bsc = new BoltSlipCriticalGroupA(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
default: throw new Exception("Unrecognized bolt material or specified material cannot be used for high-strength bolting. Check input");
}
return(bsc);
}
public Bolt(double Diameter, BoltThreadCase ThreadType,
ICalcLog log) : base(Diameter,
ThreadType, log)
{
BoltHoleSizeCalculated = false;
}
public double GetNominalShearStress(BoltThreadCase ThreadCase)
{
return 0.563 * F_u; //Table J3.2
}
public double GetNominalTensileStress(BoltThreadCase ThreadCase)
{
return(0.75 * F_u); //Table J3.2
}
public double GetNominalShearStress(BoltThreadCase ThreadCase)
{
return(0.563 * F_u); //Table J3.2
}
public double GetNominalTensileStress(BoltThreadCase ThreadCase)
{
return 45.0; //Design Guide 1 gives 58 ksi FOR GRADE C
}
/// <summary>
/// Determines if the X or N condition can be assumed without additional inspections, based on the minimum ply thickness
/// </summary>
/// <param name="NutCondition"></param>
/// <param name="d_b">Bolt diameter</param>
/// <param name="t_p">Minimum ply thickness</param>
/// <returns></returns>
public static BoltThreadCase DetermineThreadCase(BoltNutCondition NutCondition, double d_b, double t_p)
{
//Based on
//AISC Night School. W. Thornton
//Bracing Connections and Related Topics
//Session 2: The Uniform Force Method
//UPDATED: September 30, 2014
//Page 27 of handouts.
BoltThreadCase tc = BoltThreadCase.Included;
if (d_b != 0.75 && d_b != 0.875 && d_b != 1.0 && d_b != 1.125 && d_b != 1.25)
{
throw new Exception("Bolt diameter not recognized. Use standard nominal diameters between 3/4 in. and 1 1/4 in.");
}
else //standard diameter
{
if (d_b == 0.75 || d_b == 0.875)
{
switch (NutCondition)
{
case BoltNutCondition.NoWasher:
tc = t_p > 0.641 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
case BoltNutCondition.Washer:
tc = t_p > 0.485 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
case BoltNutCondition.WasherAndStickThrough:
tc = t_p > 0.235 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
}
}
else if (d_b == 1)
{
switch (NutCondition)
{
case BoltNutCondition.NoWasher:
tc = t_p > 0.766 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
case BoltNutCondition.Washer:
tc = t_p > 0.610 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
case BoltNutCondition.WasherAndStickThrough:
tc = t_p > 0.360 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
}
}
else if (d_b == 1.125)
{
switch (NutCondition)
{
case BoltNutCondition.NoWasher:
tc = t_p > 0.891 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
case BoltNutCondition.Washer:
tc = t_p > 0.735 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
case BoltNutCondition.WasherAndStickThrough:
tc = t_p > 0.485 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
}
}
else
{
switch (NutCondition)
{
case BoltNutCondition.NoWasher:
tc = t_p > 0.781 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
case BoltNutCondition.Washer:
tc = t_p > 0.625 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
case BoltNutCondition.WasherAndStickThrough:
tc = t_p > 0.375 ? BoltThreadCase.Excluded : BoltThreadCase.Included;
break;
}
}
}
return(tc);
}
public BoltBearing(double Diameter, BoltThreadCase ThreadType,
ICalcLog log): base(Diameter,ThreadType,log)
{
}
public double GetNominalTensileStress(BoltThreadCase ThreadCase)
{
return(45.0); //Design Guide 1 gives 58 ksi FOR GRADE C
}
public double GetNominalShearStress(BoltThreadCase ThreadCase)
{
return(27.0);
}
public Bolt(double Diameter, BoltThreadCase ThreadType,
ICalcLog log): base(Diameter,
ThreadType,log)
{
BoltHoleSizeCalculated = false;
}
public double GetNominalShearStress(BoltThreadCase ThreadCase)
{
return 27.0;
}
public BoltBearing(double Diameter, BoltThreadCase ThreadType,
ICalcLog log) : base(Diameter, ThreadType, log)
{
}
public IBoltSlipCritical GetSlipCriticalBolt(double Diameter, BoltThreadCase ThreadType, BoltFayingSurfaceClass SurfaceClass, BoltHoleType HoleType, BoltFillerCase FillerCase, double NumberOfSlipPlanes)
{
CalcLog log = new CalcLog();
int NPlanes = (int)NumberOfSlipPlanes;
IBoltSlipCritical bsc = null;
switch (MaterialId)
{
case "A325": bsc = new BoltSlipCriticalGroupA(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "A490": bsc = new BoltSlipCriticalGroupB(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "F1852": bsc = new BoltSlipCriticalGroupA(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "A354GradeBC": bsc = new BoltSlipCriticalGroupA(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "A354GradeBD": bsc = new BoltSlipCriticalGroupB(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
case "A449": bsc = new BoltSlipCriticalGroupA(Diameter, ThreadType, SurfaceClass, HoleType, FillerCase, NPlanes, log); break;
default: throw new Exception("Unrecognized bolt material or specified material cannot be used for high-strength bolting. Check input");
}
return bsc;
}
public double GetNominalTensileStress(BoltThreadCase ThreadCase)
{
return 0.75 * F_u; //Table J3.2
}
