/// <summary>
/// Case 18: Calculation of capacity state in symmetric section for fixed negative (tensioning) axial force
/// </summary>
public void Case18()
{
// Case 18a
// geometry definition
Geometry geometry = new Geometry();
geometry.Add(0.0, 0.0);
geometry.Add(0.0, 0.6);
geometry.Add(0.3, 0.6);
geometry.Add(0.3, 0.0);
// rebars definition
List <Rebar> rebars = new List <Rebar>();
double rebarArea = 0.040 * 0.040 * Math.PI / 4.0;
rebars.Add(new Rebar(0.03, 0.03, rebarArea));
rebars.Add(new Rebar(0.03, 0.57, rebarArea));
rebars.Add(new Rebar(0.27, 0.57, rebarArea));
rebars.Add(new Rebar(0.27, 0.03, rebarArea));
// concrete parameters
Concrete concrete = new Concrete();
concrete.SetStrainStressModelRectangular(17.12e6, 0.0035, 32e9, 0.8);
// steel parameters
Steel steel = new Steel();
steel.SetModelIdealElastoPlastic(310e6, 0.01, 200e9);
// solver creation and parameterization
RCSolver solver = RCSolver.CreateNewSolver(geometry);
solver.SetRebars(rebars);
solver.SetConcrete(concrete);
solver.SetSteel(steel);
//calulation
solver.SolveResistanceM(-493.06E3, Axis.x, false);
// result for rebars
SetOfForces forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
SetOfForces forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Point2D Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
double Acc = solver.GetConcreteStressArea();
// result for RC section
SetOfForces forces = solver.GetInternalForces(ResultType.Section);
double angle = solver.GetNeutralAxisAngle();
double dist = solver.GetNeutralAxisDistance();
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 18a: Calculation of capacity state in symmetric section for fixed negative (tensioning) axial force");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
sb.AppendLine(FormatOutput("dist", dist, 6));
sb.AppendLine(FormatOutput("angle", angle, 6));
// Case 18b
// geometry definition
geometry = new Geometry();
geometry.Add(0.0, 0.0);
geometry.Add(0.0, 0.3);
geometry.Add(0.6, 0.3);
geometry.Add(0.6, 0.0);
// rebars definition
rebars.Clear();
rebarArea = 0.036 * 0.036 * Math.PI / 4.0;
rebars.Add(new Rebar(0.09, 0.06, rebarArea));
rebars.Add(new Rebar(0.09, 0.12, rebarArea));
rebars.Add(new Rebar(0.09, 0.18, rebarArea));
rebars.Add(new Rebar(0.09, 0.24, rebarArea));
rebars.Add(new Rebar(0.51, 0.06, rebarArea));
rebars.Add(new Rebar(0.51, 0.12, rebarArea));
rebars.Add(new Rebar(0.51, 0.18, rebarArea));
rebars.Add(new Rebar(0.51, 0.24, rebarArea));
// steel parameters
steel = new Steel();
steel.DesignStrength = 420e6;
steel.HardeningFactor = 1.0;
steel.ModulusOfElasticity = 200e9;
steel.StrainUltimateLimit = 0.01;
// solver creation and parameterization
solver = RCSolver.CreateNewSolver(geometry);
solver.SetRebars(rebars);
solver.SetConcrete(concrete);
solver.SetSteel(steel);
//calulation
solver.SolveResistanceM(-862.85E3, Axis.x, true);
// result for rebars
forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
Acc = solver.GetConcreteStressArea();
// result for RC section
forces = solver.GetInternalForces(ResultType.Section);
angle = solver.GetNeutralAxisAngle();
dist = solver.GetNeutralAxisDistance();
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 18b: Calculation of capacity state in symmetric section for fixed negative (tensioning) axial force");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
sb.AppendLine(FormatOutput("dist", dist, 6));
sb.AppendLine(FormatOutput("angle", angle, 6));
}
/// <summary>
/// Case 7 Calculation of internal forces for given state of strain in the section and inclined branch model of steel
/// </summary>
public void Case7()
{
// geometry definition
Geometry geometry = new Geometry();
geometry.Add(0.0, 0.0);
geometry.Add(0.0, 0.6);
geometry.Add(0.3, 0.6);
geometry.Add(0.3, 0.0);
// rebars definition
List <Rebar> rebars = new List <Rebar>();
rebars.Add(new Rebar(0.05, 0.05, 0.032 * 0.032 * Math.PI / 4.0));
rebars.Add(new Rebar(0.15, 0.05, 0.032 * 0.032 * Math.PI / 4.0));
rebars.Add(new Rebar(0.25, 0.05, 0.032 * 0.032 * Math.PI / 4.0));
rebars.Add(new Rebar(0.05, 0.15, 0.020 * 0.020 * Math.PI / 4.0));
rebars.Add(new Rebar(0.25, 0.15, 0.020 * 0.020 * Math.PI / 4.0));
rebars.Add(new Rebar(0.05, 0.55, 0.012 * 0.012 * Math.PI / 4.0));
rebars.Add(new Rebar(0.25, 0.55, 0.012 * 0.012 * Math.PI / 4.0));
// concrete parameters
Concrete concrete = new Concrete();
concrete.SetStrainStressModelLinear(20e6, 0.0035, 30e9);
// steel parameters
Steel steel = new Steel();
steel.SetModelWithHardening(500e6, 0.075, 200e9, 1.05);
// solver creation and parameterization
RCSolver solver = RCSolver.CreateNewSolver(geometry);
solver.SetRebars(rebars);
solver.SetConcrete(concrete);
solver.SetSteel(steel);
//calulation
solver.SolveForces(ResultType.Section, 0.0035, -0.0070);
// result for rebars
SetOfForces forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
SetOfForces forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Point2D Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
double Acc = solver.GetConcreteStressArea();
// result for RC section
SetOfForces forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 7 Calculation of internal forces for given state of strain in the section and inclined branch model of steel ");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
}
/// <summary>
/// Case 15: Calculation of capacity state in asymmetric section for bidirectional bending with axial force
/// </summary>
public void Case15()
{
// Case 15a
// geometry definition
Geometry geometry = new Geometry();
geometry.Add(0.00, 0.00);
geometry.Add(0.00, 0.60);
geometry.Add(0.25, 0.60);
geometry.Add(0.25, 0.25);
geometry.Add(0.70, 0.25);
geometry.Add(0.70, 0.00);
// rebars definition
List <Rebar> rebars = new List <Rebar>();
double rebarArea = 0.020 * 0.020 * Math.PI / 4.0;
rebars.Add(new Rebar(0.05, 0.05, rebarArea));
rebars.Add(new Rebar(0.05, 0.55, rebarArea));
rebars.Add(new Rebar(0.20, 0.55, rebarArea));
rebars.Add(new Rebar(0.20, 0.05, rebarArea));
rebars.Add(new Rebar(0.65, 0.05, rebarArea));
rebars.Add(new Rebar(0.65, 0.20, rebarArea));
rebars.Add(new Rebar(0.05, 0.20, rebarArea));
// concrete parameters
Concrete concrete = new Concrete();
concrete.SetStrainStressModelRectangular(20e6, 0.0035, 35e9, 0.8);
// steel parameters
Steel steel = new Steel();
steel.SetModelIdealElastoPlastic(310e6, 0.075, 200e9);
// solver creation and parameterization
RCSolver solver = RCSolver.CreateNewSolver(geometry);
solver.SetRebars(rebars);
solver.SetConcrete(concrete);
solver.SetSteel(steel);
//calulation
solver.SolveResistance(72.4471E3, -28.9825E3, 2.5743E3);
// result for rebars
SetOfForces forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
SetOfForces forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Point2D Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
double Acc = solver.GetConcreteStressArea();
// result for RC section
SetOfForces forces = solver.GetInternalForces(ResultType.Section);
double angle = solver.GetNeutralAxisAngle();
double dist = solver.GetNeutralAxisDistance();
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 15a: Calculation of capacity state in asymmetric section for bidirectional bending with axial force ");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
sb.AppendLine(FormatOutput("dist", dist, 6));
sb.AppendLine(FormatOutput("angle", angle, 6));
// Case 15b
// concrete parameters (rectangular)
concrete.SetStrainStressModelRectangular(20e6, 0.0035, 35e9, 0.8);
// solver parameterization
solver.SetConcrete(concrete);
//calulation
solver.SolveResistance(72.4471E3, -28.9825E3, 2.5743E3);
// result for RC section
forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 15b: Calculation of capacity state in asymmetric section for bidirectional bending with axial force (rectangular)");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
// concrete parameters(linear)
concrete.SetStrainStressModelLinear(25e6, 0.0035, 32e9);
// solver parameterization
solver.SetConcrete(concrete);
//calulation
solver.SolveResistance(72.4471E3, -28.9825E3, 2.5743E3);
// result for RC section
forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 15b: Calculation of capacity state in asymmetric section for bidirectional bending with axial force (linear)");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
// concrete parameters (bilinear)
concrete.SetStrainStressModelBiLinear(25e6, 0.0035, 32e9, 0.0020);
// solver parameterization
solver.SetConcrete(concrete);
//calulation
solver.SolveResistance(72.4471E3, -28.9825E3, 2.5743E3);
// result for RC section
forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 15b: Calculation of capacity state in asymmetric section for bidirectional bending with axial force (bilinear)");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
// concrete parameters (parabolic-rectangular)
concrete.SetStrainStressModelParabolicRectangular(25e6, 0.0035, 32e9, 0.0020);
// solver parameterization
solver.SetConcrete(concrete);
//calulation
solver.SolveResistance(72.4471E3, -28.9825E3, 2.5743E3);
// result for RC section
forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 15b: Calculation of capacity state in asymmetric section for bidirectional bending with axial force (parabolic-rectangular)");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
// concrete parameters (power-rectangular)
concrete.SetStrainStressModelPowerRectangular(25e6, 0.0035, 32e9, 0.002, 1.5);
// solver parameterization
solver.SetConcrete(concrete);
//calulation
solver.SolveResistance(72.4471E3, -28.9825E3, 2.5743E3);
// result for RC section
forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 15b: Calculation of capacity state in asymmetric section for bidirectional bending with axial force (parabolic-rectangular)");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
}
/// <summary>
///Case 13: Calculation of capacity state in symmetric section for bending moment My with axial force
/// </summary>
public void Case13()
{
// Case 13a
// geometry definition
Geometry geometry = new Geometry();
geometry.Add(0.0, 0.0);
geometry.Add(0.6, 0.0);
geometry.Add(0.6, 0.3);
geometry.Add(0.0, 0.3);
//rebars definition
List <Rebar> rebars = new List <Rebar>();
double rebarArea = 0.012 * 0.012 * Math.PI / 4.0;
rebars.Add(new Rebar(0.05, 0.05, rebarArea));
rebars.Add(new Rebar(0.05, 0.25, rebarArea));
rebars.Add(new Rebar(0.55, 0.25, rebarArea));
rebars.Add(new Rebar(0.55, 0.05, rebarArea));
// concrete parameters
Concrete concrete = new Concrete();
concrete.SetStrainStressModelRectangular(20e6, 0.0035, 30e9, 0.8);
// steel parameters
Steel steel = new Steel();
steel.SetModelIdealElastoPlastic(500e6, 0.075, 200e9);
// solver creation and parameterization
RCSolver solver = RCSolver.CreateNewSolver(geometry);
solver.SetRebars(rebars);
solver.SetConcrete(concrete);
solver.SetSteel(steel);
//calulation
solver.SolveResistance(3331.408571E3, 0, -82.84952381E3);
// result for rebars
SetOfForces forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
SetOfForces forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Point2D Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
double Acc = solver.GetConcreteStressArea();
// result for RC section
SetOfForces forces = solver.GetInternalForces(ResultType.Section);
double angle = solver.GetNeutralAxisAngle();
double dist = solver.GetNeutralAxisDistance();
// result presentation
sb.AppendLine("Case 12a: Calculation of capacity state in symmetric section for bending moment Mx with axial force ");
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
sb.AppendLine(FormatOutput("dist", dist, 6));
sb.AppendLine(FormatOutput("angle", angle, 6));
// Case 13b
rebars.Clear();
rebarArea = 0.016 * 0.016 * Math.PI / 4.0;
rebars.Add(new Rebar(0.05, 0.05, rebarArea));
rebars.Add(new Rebar(0.05, 0.25, rebarArea));
rebars.Add(new Rebar(0.55, 0.25, rebarArea));
rebars.Add(new Rebar(0.55, 0.05, rebarArea));
// concrete parameters
concrete.SetStrainStressModelParabolicRectangular(30e6, 0.0035, 32e9, 0.0020);
// steel parameters
steel.DesignStrength = 400e6;
steel.StrainUltimateLimit = 0.1;
steel.ModulusOfElasticity = 200e9;
steel.HardeningFactor = 1.0;
// solver parameterization
solver.SetRebars(rebars);
solver.SetConcrete(concrete);
solver.SetSteel(steel);
//calulation
solver.SolveResistance(5095500, 0, -137860);
// result for rebars
forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
Acc = solver.GetConcreteStressArea();
// result for RC section
forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 13b: Calculation of capacity state in symmetric section for bending moment My with axial force ");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
}
/// <summary>
/// Case 1: Cross section characteristics
/// </summary>
public void Case1()
{
// geometry definition
Geometry geometry = new Geometry();
geometry.Add(0.0, 0.0);
geometry.Add(0.0, 0.2);
geometry.Add(0.2, 0.2);
geometry.Add(0.2, 0.6);
geometry.Add(0.5, 0.6);
geometry.Add(0.5, 0.3);
geometry.Add(0.8, 0.3);
geometry.Add(0.8, 0.0);
// rebars definition
List <Rebar> rebars = new List <Rebar>();
// rebar area A = d*d*pi/4
rebars.Add(new Rebar(0.05, 0.05, 0.010 * 0.010 * Math.PI / 4.0));
rebars.Add(new Rebar(0.75, 0.05, 0.012 * 0.012 * Math.PI / 4.0));
rebars.Add(new Rebar(0.75, 0.25, 0.020 * 0.020 * Math.PI / 4.0));
rebars.Add(new Rebar(0.45, 0.55, 0.050 * 0.050 * Math.PI / 4.0));
rebars.Add(new Rebar(0.25, 0.55, 0.020 * 0.020 * Math.PI / 4.0));
rebars.Add(new Rebar(0.05, 0.15, 0.015 * 0.015 * Math.PI / 4.0));
// concrete parameters
Concrete concrete = new Concrete();
concrete.ModulusOfElasticity = 30e9;
// steel parameters
Steel steel = new Steel();
steel.ModulusOfElasticity = 200e9;
// solver creation and parameterization
RCSolver solver = RCSolver.CreateNewSolver(geometry);
solver.SetRebars(rebars);
solver.SetConcrete(concrete);
solver.SetSteel(steel);
// result for concrete
double Ac = solver.GetArea(ResultType.Concrete);
Point2D Cc = solver.GetCenterOfInertia(ResultType.Concrete);
double Icx = solver.GetMomentOfInertiaX(ResultType.Concrete);
double Icy = solver.GetMomentOfInertiaY(ResultType.Concrete);
// result for rebars
double As = solver.GetArea(ResultType.Rebars);
Point2D Cs = solver.GetCenterOfInertia(ResultType.Rebars);
double Isx = solver.GetMomentOfInertiaX(ResultType.Rebars);
double Isy = solver.GetMomentOfInertiaY(ResultType.Rebars);
// result for reduced
double Aeff = solver.GetArea(ResultType.Section);
Point2D Ceff = solver.GetCenterOfInertia(ResultType.Section);
double Ieffx = solver.GetMomentOfInertiaX(ResultType.Section);
double Ieffy = solver.GetMomentOfInertiaY(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 1: Cross section characteristics");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ac", Ac, 6));
sb.AppendLine(FormatOutput("Ccx", Cc.X, 6));
sb.AppendLine(FormatOutput("Ccy", Cc.Y, 6));
sb.AppendLine(FormatOutput("Icx", Icx, 6));
sb.AppendLine(FormatOutput("Icy", Icy, 6));
sb.AppendLine(FormatOutput("As", As, 6));
sb.AppendLine(FormatOutput("Csx", Cs.X, 6));
sb.AppendLine(FormatOutput("Csy", Cs.Y, 6));
sb.AppendLine(FormatOutput("Isx", Isx, 6));
sb.AppendLine(FormatOutput("Isy", Isy, 6));
sb.AppendLine(FormatOutput("Aeff", Aeff, 6));
sb.AppendLine(FormatOutput("Ceffx", Ceff.X, 6));
sb.AppendLine(FormatOutput("Ceffy", Ceff.Y, 6));
sb.AppendLine(FormatOutput("Ieffx", Ieffx, 6));
sb.AppendLine(FormatOutput("Ieffy", Ieffy, 6));
}
/// <summary>
/// Case 8: Calculation of internal forces in asymmetric section for given state of strain with horizontal neutral axis
/// </summary>
public void Case8()
{
// geometry definition
Geometry geometry = new Geometry();
geometry.Add(0.0, 0.0);
geometry.Add(0.0, 0.3);
geometry.Add(0.2, 0.3);
geometry.Add(0.2, 0.7);
geometry.Add(0.9, 0.7);
geometry.Add(0.9, 0.5);
geometry.Add(0.5, 0.5);
geometry.Add(0.5, 0.0);
// rebars definition
List <Rebar> rebars = new List <Rebar>();
rebars.Add(new Rebar(0.05, 0.05, 0.025 * 0.025 * Math.PI / 4.0));
rebars.Add(new Rebar(0.45, 0.05, 0.025 * 0.025 * Math.PI / 4.0));
rebars.Add(new Rebar(0.85, 0.55, 0.012 * 0.012 * Math.PI / 4.0));
rebars.Add(new Rebar(0.85, 0.65, 0.012 * 0.012 * Math.PI / 4.0));
rebars.Add(new Rebar(0.45, 0.65, 0.012 * 0.012 * Math.PI / 4.0));
rebars.Add(new Rebar(0.25, 0.65, 0.012 * 0.012 * Math.PI / 4.0));
rebars.Add(new Rebar(0.25, 0.05, 0.025 * 0.025 * Math.PI / 4.0));
rebars.Add(new Rebar(0.05, 0.25, 0.012 * 0.012 * Math.PI / 4.0));
rebars.Add(new Rebar(0.45, 0.25, 0.012 * 0.012 * Math.PI / 4.0));
rebars.Add(new Rebar(0.25, 0.55, 0.012 * 0.012 * Math.PI / 4.0));
// concrete parameters
Concrete concrete = new Concrete();
concrete.SetStrainStressModelRectangular(50e6, 0.0035, 37e9, 0.8);
// steel parameters
Steel steel = new Steel();
steel.SetModelIdealElastoPlastic(500e6, 0.075, 200e9);
// solver creation and parameterization
RCSolver solver = RCSolver.CreateNewSolver(geometry);
solver.SetRebars(rebars);
solver.SetConcrete(concrete);
solver.SetSteel(steel);
//calulation
solver.SolveForces(ResultType.Section, 0.0035, -0.00875);
// result for rebars
SetOfForces forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
SetOfForces forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Point2D Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
double Acc = solver.GetConcreteStressArea();
// result for RC section
SetOfForces forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 8: Calculation of internal forces in asymmetric section for given state of strain with horizontal neutral axis");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
}
/// <summary>
/// Case 2: Calculation of internal forces for given state of strain in the section and rectangular model of concrete
/// Case 2a, Case 2b and Case 2c - common geometry, concrete and steel parameters different rebars and calculation
/// </summary>
public void Case2()
{
// Case 2a:
// geometry definition
Geometry geometry = new Geometry();
geometry.Add(0.0, 0.0);
geometry.Add(0.0, 0.6);
geometry.Add(0.3, 0.6);
geometry.Add(0.3, 0.0);
// rebars definition
List <Rebar> rebars = new List <Rebar>();
double rebarArea = 0.012 * 0.012 * Math.PI / 4.0;
rebars.Add(new Rebar(0.05, 0.05, rebarArea));
rebars.Add(new Rebar(0.05, 0.55, rebarArea));
rebars.Add(new Rebar(0.25, 0.55, rebarArea));
rebars.Add(new Rebar(0.25, 0.05, rebarArea));
// concrete parameters
Concrete concrete = new Concrete();
concrete.SetStrainStressModelRectangular(20e6, 0.0035, 30e9, 0.8);
// steel parameters
Steel steel = new Steel();
steel.SetModelIdealElastoPlastic(500e6, 0.075, 200e9);
// solver creation and parameterization
RCSolver solver = RCSolver.CreateNewSolver(geometry);
solver.SetRebars(rebars);
solver.SetConcrete(concrete);
solver.SetSteel(steel);
//calulation
solver.SolveForces(ResultType.Section, 0.0035, 0.0005);
// result for rebars
SetOfForces forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
SetOfForces forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Point2D Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
double Acc = solver.GetConcreteStressArea();
// result for RC section
SetOfForces forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 2a: Calculation of internal forces for given state of strain in the section and rectangular model of concrete ");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
//
// Case 2b
rebars.Clear();
rebarArea = 0.032 * 0.032 * Math.PI / 4.0;
rebars.Add(new Rebar(0.05, 0.05, rebarArea));
rebars.Add(new Rebar(0.05, 0.55, rebarArea));
rebars.Add(new Rebar(0.25, 0.55, rebarArea));
rebars.Add(new Rebar(0.25, 0.05, rebarArea));
solver.SetRebars(rebars);
//calulation
solver.SolveForces(ResultType.Section, 0.0035, -0.022029);
// result for rebars
forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
Acc = solver.GetConcreteStressArea();
// result for RC section
forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 2b: Calculation of internal forces for given state of strain in the section and rectangular model of concrete ");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
//
// Case 2c
rebars.Clear();
rebarArea = 0.032 * 0.032 * Math.PI / 4.0;
rebars.Add(new Rebar(0.05, 0.05, rebarArea));
rebars.Add(new Rebar(0.25, 0.05, rebarArea));
solver.SetRebars(rebars);
//calulation
solver.SolveForces(ResultType.Section, 0.0015, -0.002);
// result for rebars
forcesRebar = solver.GetInternalForces(ResultType.Rebars);
// result for concrete
forcesConcrete = solver.GetInternalForces(ResultType.Concrete);
Gcc = solver.GetStressGravityCenter(ResultType.Concrete);
Acc = solver.GetConcreteStressArea();
// result for RC section
forces = solver.GetInternalForces(ResultType.Section);
// result presentation
sb.AppendLine();
sb.AppendLine(decoration);
sb.AppendLine("Case 2c: Calculation of internal forces for given state of strain in the section and rectangular model of concrete");
sb.AppendLine(decoration);
sb.AppendLine(FormatOutput("Ns", forcesRebar.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxs", forcesRebar.MomentX, 6));
sb.AppendLine(FormatOutput("Mys", forcesRebar.MomentY, 6));
sb.AppendLine(FormatOutput("Ac", Acc, 6));
sb.AppendLine(FormatOutput("Gcx", Gcc.X, 6));
sb.AppendLine(FormatOutput("Gcy", Gcc.Y, 6));
sb.AppendLine(FormatOutput("Nc", forcesConcrete.AxialForce, 6));
sb.AppendLine(FormatOutput("Mxc", forcesConcrete.MomentX, 6));
sb.AppendLine(FormatOutput("Myc", forcesConcrete.MomentY, 6));
sb.AppendLine(FormatOutput("N", forces.AxialForce, 6));
sb.AppendLine(FormatOutput("Mx", forces.MomentX, 6));
sb.AppendLine(FormatOutput("My", forces.MomentY, 6));
}
