public static Dictionary <string, object> TwoWayShearStrengthProvidedByConcrete(PunchingShearPerimeter PunchingShearPerimeter,
ConcreteMaterial ConcreteMaterial, double d, double c_x, double c_y, bool IsSectionAtColumnFace = true)
{
//Default values
double phi_v_c = 0;
//Calculation logic:
PunchingPerimeterConfiguration Configuration;
bool IsValidInputString = Enum.TryParse(PunchingShearPerimeter.Configuration, true, out Configuration);
if (IsValidInputString == false)
{
throw new Exception("Failed to convert string. Examples of acceptable values are Interior, EdgeLeft, CornerLeftTop. Please check input");
}
ConcreteSectionTwoWayShear sec = new ConcreteSectionTwoWayShear(ConcreteMaterial.Concrete,
PunchingShearPerimeter.PerimeterData, d, c_x, c_y, Configuration);
phi_v_c = sec.GetTwoWayStrengthForUnreinforcedConcrete() / 1000.0; //convert to ksi
return(new Dictionary <string, object>
{
{ "phi_v_c", phi_v_c }
});
}
public static Dictionary <string, object> TwoWayShearStressFromMomentAndShear(double M_ux, double M_uy, double V_u, PunchingShearPerimeter PunchingShearPerimeter, string PunchingPerimeterConfiguration,
double gamma_vx, double gamma_vy, bool AllowShearRedistribution = false)
{
//Default values
double v_u_Max = 0;
double v_u_Min = 0;
//Calculation logic:
PunchingShearPerimeter p = PunchingShearPerimeter;
PunchingPerimeterConfiguration Configuration;
bool IsValidInputString = Enum.TryParse(p.Configuration, true, out Configuration);
if (IsValidInputString == false)
{
throw new Exception("Failed to convert string. Examples of acceptable values are Interior, EdgeLeft, CornerLeftTop. Please check input");
}
ConcreteSectionTwoWayShear sec = new ConcreteSectionTwoWayShear(p.PerimeterData, p.d, p.c_x, p.c_y, Configuration, false);
//Check gamma's
double v_uConcentric = sec.GetConcentricShearStress(V_u);
double phi_v_c = sec.GetTwoWayStrengthForUnreinforcedConcrete() / 1000.0; //convert to ksi
if (gamma_vx == 1.0 && v_uConcentric > 0.75 * phi_v_c)
{
throw new Exception("gamma_vx cannot be 1.0 if stress due to concentric shear force exceeds 75% of concrete shear strength");
}
if (gamma_vy == 1.0 && v_uConcentric > 0.75 * phi_v_c)
{
throw new Exception("gamma_vy cannot be 1.0 if stress due to concentric shear force exceeds 75% of concrete shear strength");
}
ResultOfShearStressDueToMoment result = sec.GetCombinedShearStressDueToMomementAndShear(M_ux, M_uy, V_u, gamma_vx, gamma_vy, AllowShearRedistribution);
v_u_Max = result.v_max;
v_u_Min = result.v_min;
gamma_vx = result.gamma_vx;
gamma_vy = result.gamma_vy;
return(new Dictionary <string, object>
{
{ "v_u_Max", v_u_Max }
, { "v_u_Min", v_u_Min }
, { "gamma_vx", gamma_vx }
, { "gamma_vy", gamma_vy }
});
}
public void SlabPunchingConcentricReturnsValue()
{
IConcreteMaterial mat = this.GetConcreteMaterial(3000, false);
PerimeterFactory f = new PerimeterFactory();
double d = 4.75;
double b_1 = 26.0;
double b_2 = 12.0;
List <PerimeterLineSegment> segments = f.GetPerimeterSegments(PunchingPerimeterConfiguration.Interior, b_1, b_2, d);
ConcreteSectionTwoWayShear sec = new ConcreteSectionTwoWayShear(mat, segments, d, b_1, b_2, true, PunchingPerimeterConfiguration.Interior);
double phi_v_c = sec.GetTwoWayStrengthForUnreinforcedConcrete() / 1000.0; //convert to kips
double refValue = 71.3 / d / 95.0; //from example
double actualTolerance = EvaluateActualTolerance(phi_v_c, refValue);
Assert.LessOrEqual(actualTolerance, tolerance);
}
public void SlabPunchingStrengthReturnsValue()
{
IConcreteMaterial mat = this.GetConcreteMaterial(3000, false);
PerimeterFactory f = new PerimeterFactory();
double d = 4.75;
double b_1 = 26.0;
double b_2 = 12.0;
Point2D ColumnCenter = new Point2D(0, 0);
PunchingPerimeterData perimeter = f.GetPerimeterData(PunchingPerimeterConfiguration.Interior, b_1, b_2, d, 0, 0, ColumnCenter);
//ConcreteSectionTwoWayShear sec = new ConcreteSectionTwoWayShear(mat, perimeter, d, b_1, b_2, true, PunchingPerimeterConfiguration.Interior);
ConcreteSectionTwoWayShear sec = new ConcreteSectionTwoWayShear(mat, perimeter, d, b_1, b_2, PunchingPerimeterConfiguration.Interior);
double phi_v_c = sec.GetTwoWayStrengthForUnreinforcedConcrete() / 1000.0; //convert to kips
double refValue = 71.3 / d / 95.0; //from example
double actualTolerance = EvaluateActualTolerance(phi_v_c, refValue);
Assert.True(actualTolerance <= tolerance);
}
