private ISteelBeamFlexure CreateIBeam(CompactnessClassFlexure FlangeCompactness,
CompactnessClassFlexure WebCompactness, ISectionI Section, ISteelMaterial Material,
ICalcLog Log, bool IsRolled)
{
SteelSectionI steelSection = new SteelSectionI(Section, Material);
ISteelBeamFlexure beam = null;
if (FlangeCompactness == CompactnessClassFlexure.Compact && WebCompactness == CompactnessClassFlexure.Compact)
{
//F2
beam = new BeamIDoublySymmetricCompact(steelSection, IsRolled, Log);
}
else if (WebCompactness == CompactnessClassFlexure.Compact && FlangeCompactness != CompactnessClassFlexure.Compact)
{
//F3
throw new NotImplementedException();
}
return(beam);
}
private ISteelBeamFlexure CreateIBeam(CompactnessClassFlexure FlangeCompactness,
CompactnessClassFlexure WebCompactness, ISectionI Section, ISteelMaterial Material,
ICalcLog Log, bool IsRolled)
{
SteelSectionI steelSection = new SteelSectionI(Section, Material);
ISteelBeamFlexure beam = null;
if (FlangeCompactness== CompactnessClassFlexure.Compact && WebCompactness == CompactnessClassFlexure.Compact)
{
//F2
beam = new BeamIDoublySymmetricCompact(steelSection, IsRolled, Log);
}
else if (WebCompactness == CompactnessClassFlexure.Compact && FlangeCompactness!= CompactnessClassFlexure.Compact)
{
//F3
throw new NotImplementedException();
}
return beam;
}
public double GetFlexuralStrength()
{
double phiM_n =0.0;
CalcLog log = new CalcLog();
ISection section = Section.Shape;
if (section is SectionRectangular || section is SectionOfPlateWithHoles || section is SectionI)
{
if (section is SectionOfPlateWithHoles)
{
SectionOfPlateWithHoles plateWithHoles = section as SectionOfPlateWithHoles;
double S_g = plateWithHoles.B * Math.Pow(plateWithHoles.H, 2);
double Z_net = plateWithHoles.Z_x;
double Y = 0.9* this.Section.Material.YieldStress * S_g; //Flexural Yielding
double R = 0.75* this.Section.Material.UltimateStress * Z_net;
phiM_n = Math.Min(Y, R);
}
else if (section is ISectionI )
{
ISectionI IShape = section as ISectionI;
double R = GetTensionFlangeRuptureStrength(IShape);
if (IsCompactDoublySymmetricForFlexure == false)
{
throw new Exception("Noncompact and singly symmetric I-shapes are not supported for connection checks.");
}
else
{
BeamIDoublySymmetricCompact IBeam = new BeamIDoublySymmetricCompact(Section,this.IsRolled, Log);
double Y = 0.9 * IBeam.GetMajorNominalPlasticMoment();
phiM_n = Math.Min(Y, R);
}
}
else //Rectangle
{
SectionRectangular plate = section as SectionRectangular;
if (plate !=null)
{
double Z = plate.Z_x;
double Y =0.9* this.Section.Material.YieldStress * Z;
phiM_n = Y;
}
}
}
else
{
throw new Exception("Wrong section type. Only SectionRectangular, SectionOfPlateWithHoles and SectionI are supported.");
}
return phiM_n;
}