private double GetIntermediateColdRoofCs(double slope, data.SnowRoofSurfaceType surface, ICalcLogEntry CsEntry)
{
double Cs = 1.0;
if (surface == data.SnowRoofSurfaceType.Slippery)
{
if (slope <= 10.0)
{
Cs = 1.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorIntermediateColdSlippery.docx";
}
else
{
if (slope > 70)
{
Cs = 0.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorIntermediateColdSlippery.docx";
}
else
{
Cs = 1.0 - (slope - 10.0) / 60.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorIntermediateColdSlipperyInterp.docx";
}
}
}
else
{
if (slope <= 37.5)
{
Cs = 1.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorIntermediateColdNonSlippery.docx";
}
else
{
if (slope > 70)
{
Cs = 0.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorIntermediateColdNonSlippery.docx";
}
else
{
Cs = 1.0 - (slope - 37.5) / 32.5;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorIntermediateColdNonSlipperyInterp.docx";
}
}
}
return(Cs);
}
private double GetWarmRoofCs(double slope, data.SnowRoofSurfaceType surface, ICalcLogEntry CsEntry)
{
double Cs = 1.0;
if (surface == data.SnowRoofSurfaceType.Slippery)
{
if (slope <= 5.0)
{
Cs = 1.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorWarmSlippery.docx";
}
else
{
if (slope > 70)
{
Cs = 0.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorWarmSlippery.docx";
}
else
{
Cs = 1.0 - (slope - 5.0) / 65.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorWarmSlipperyInterp.docx";
}
}
}
else
{
if (slope <= 30.0)
{
Cs = 1.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorWarmNonSlippery.docx";
}
else
{
if (slope > 70)
{
Cs = 0.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorWarmNonSlippery.docx";
}
else
{
Cs = 1.0 - (slope - 30.0) / 40.0;
CsEntry.DescriptionReference = "/Templates/Loads/ASCE7_10/Snow/SnowSlopeFactorWarmSlipperyInterp.docx";
}
}
}
return(Cs);
}
public double GetSnowSlopeFactor(double RoofSlopeAngle, data.SnowRoofSurfaceType surface, double ThermalFactor)
{
double Ct = ThermalFactor;
double Cs;
#region Cs
ICalcLogEntry CsEntry = new CalcLogEntry();
CsEntry.ValueName = "Cs";
CsEntry.AddDependencyValue("s", Math.Round(RoofSlopeAngle, 3));
CsEntry.AddDependencyValue("Ct", Math.Round(ThermalFactor, 3));
CsEntry.Reference = "";
CsEntry.FormulaID = null; //reference to formula from code
#endregion
if (Ct <= 1.0)
{
Cs = GetWarmRoofCs(RoofSlopeAngle, surface, CsEntry);
}
else
{
if (Ct >= 1.2)
{
Cs = GetColdRoofCs(RoofSlopeAngle, surface, CsEntry);
}
else
{
Cs = GetIntermediateColdRoofCs(RoofSlopeAngle, surface, CsEntry);
}
}
CsEntry.VariableValue = Math.Round(Cs, 3).ToString();
this.AddToLog(CsEntry);
return(Cs);
}
