public void GetMNCurveY(out List <Tuple <double, double> > MN_Y, int npts = 20)
{
DataTable Summary = new DataTable("Y方向MN曲线");
Summary.Gen(120, new string[] { "M", "N", "a", "e", "fst", "fsc", "Ncal" });
MN_Y = new List <Tuple <double, double> >();
double h = LengthY;
double b = LengthZ;
double Nn = 0.0;
double Mu = 0.0;
Reinforcement CompRebar = RebarY1;
Reinforcement TensRebar = RebarY0;
ConcreteAASHTO Conc = thisConcrete;
double DepthT = h - TensRebar.locY;
double DepthC = Math.Abs(CompRebar.locY);
double a_balance = GetABalance(Conc, TensRebar, DepthT);
double e_balance = GetEBalance(b, h, Conc, TensRebar, CompRebar, DepthT, DepthC);
double N_balance = GetNBalance(b, h, Conc, TensRebar, CompRebar, DepthT, DepthC);
double Nstep = N_balance / (npts - 1);
Tuple <double, double> fsa = new Tuple <double, double>(0, 0);
for (int i = 0; i < npts; i++)
{
Nn = N_balance - Nstep * i;
fsa = PubFuncs.GetCompRebarFs(1, LengthY, LengthZ, LengthY, DepthC, thisConcrete, RebarY0, RebarY1, -Nn);
Mu = 0.85 * thisConcrete.Fck_cylinder * LengthZ * fsa.Item2 * (DepthT - 0.5 * fsa.Item2) - RebarY1.AsTotal * fsa.Item1 * (DepthT - (LengthY - DepthC));
MN_Y.Add(new Tuple <double, double>(Mu, Nn));
double Ncal = 0.85 * Conc.Fck_cylinder * b * fsa.Item2 - RebarY0.AsTotal * RebarY0.Fy - RebarY1.AsTotal * fsa.Item1;
Summary.WriteLine(i, new double[] { Mu, Nn, fsa.Item2, Mu / Nn, RebarY0.Fy, fsa.Item1, Ncal });
}
double Estep = e_balance / (5 * npts);
double e = 0;
for (int i = 0; i < 5 * npts; i++)
{
e = e_balance - Estep * (i + 1);
fsa = PubFuncs.GetTensRebarFs(a_balance, Conc.Beta1 * h, b, h, DepthT, DepthC, Conc, TensRebar, CompRebar, e);
Mu = 0.85 * thisConcrete.Fck_cylinder * b * fsa.Item2 * (DepthT - 0.5 * fsa.Item2) + CompRebar.AsTotal * CompRebar.Fy * (DepthT - (LengthY - DepthC));
//Nn = 0.85 * thisConcrete.Fck_cylinder * b * fsa.Item2 - TensRebar.AsTotal * fsa.Item1 + CompRebar.AsTotal * CompRebar.Fy;
Summary.WriteLine(npts + i, new double[] { Mu, Mu / e, fsa.Item2, e, fsa.Item1, -RebarY1.Fy });
}
}
/// <summary>
/// 截面分析
/// </summary>
public void SectionAnalysis(int npts = 20)
{
List <Tuple <double, double> > MN_Y = new List <Tuple <double, double> >();
List <Tuple <double, double> > MN_Z = new List <Tuple <double, double> >();
double N_balance = GetNBalance(LengthZ, LengthY, thisConcrete, RebarY0, RebarY1, LengthY - RebarY0.locY, Math.Abs(RebarY1.locY));
double a_balance = GetABalance(thisConcrete, RebarY0, LengthY - RebarY0.locY);
double Nstep = N_balance / (npts - 1);
double Nn = 0.0;
double Mu = 0.0;
double DepthC = RebarY1.locY;
double DepthT = LengthY - RebarY0.locY;
Tuple <double, double> fsa = new Tuple <double, double>(0, 0);
for (int i = 0; i < npts; i++)
{
Nn = N_balance - Nstep * i;
if (Nn <= N_balance)
{
fsa = PubFuncs.GetCompRebarFs(1, LengthY, LengthZ, LengthY, DepthC, thisConcrete, RebarY0, RebarY1, -Nn);
}
Mu = 0.85 * thisConcrete.Fck_cylinder * LengthZ * fsa.Item2 * (DepthT - 0.5 * fsa.Item2) - RebarY1.AsTotal * fsa.Item1 * (DepthT - (LengthY - DepthC));
MN_Y.Add(new Tuple <double, double>(Mu, Nn));
}
MN_Y.Sort((x, y) => x.Item2.CompareTo(y.Item2));
;
////受拉破坏
//Console.WriteLine(string.Format("# 截面为<常轴力弯曲破坏>"));
//Tuple<double, double> fsa = GetFs(1, H, Nn);
//var Mu = 0.85 * Conc.Fcu * B * fsa.Item2 * (DepthT - 0.5 * fsa.Item2) - CompRebar.As * fsa.Item1 * (DepthT - (H - DepthC));
//Console.WriteLine(string.Format("# a={0:F3}mm", fsa.Item2));
//Console.WriteLine(string.Format("# fs={0:F3}MPa", fsa.Item1));
//Console.WriteLine(string.Format("# 极限承载力Mu={1:F0}kNm", fsa.Item1, Mu / 1e6));
//Console.WriteLine(string.Format("# 极限承载力φMu={1:F0}kNm", fsa.Item1, Mu / 1e6 * 0.75));
return;
}
public double GetMnY(double Nn)
{
double Mn = 0;
double h = LengthY;
double b = LengthZ;
Reinforcement TensRebar = RebarY0;
Reinforcement CompRebar = RebarY1;
double DepthT = h - TensRebar.locY;
double DepthC = Math.Abs(CompRebar.locY);
double N_blance = GetNBalance(b, h, thisConcrete, TensRebar, CompRebar, DepthT, DepthC);
double a_blance = GetABalance(thisConcrete, TensRebar, DepthT);
double[] FFA = PubFuncs.GetFFA(-Math.Abs(Nn), a_blance, b, h, thisConcrete, TensRebar, CompRebar, DepthT, DepthC);
double ftens = FFA[0];
double fcomp = FFA[1];
double a = FFA[2];
double FailureMode = FFA[3];
double dp = (0.85 * thisConcrete.Fck_cylinder * b * h * (DepthT - 0.5 * h) + CompRebar.AsTotal * CompRebar.Fy * (DepthT - (h - DepthC))) / (0.85 * thisConcrete.Fck_cylinder * b * h + CompRebar.AsTotal * CompRebar.Fy + TensRebar.AsTotal * TensRebar.Fy);
if (FailureMode > 3)
{
return(0);//C>H的破坏
}
else if (FailureMode == 3)
{
//C<H受压
double epp = (0.85 * thisConcrete.Fck_cylinder * b * a * (DepthT - 0.5 * a) - CompRebar.AsTotal * fcomp * (DepthT + DepthC - h)) / Math.Abs(Nn);
Mn = (epp - dp) * Math.Abs(Nn);
}
else if (FailureMode <= 2)
{
// 受拉破坏
double epp = (0.85 * thisConcrete.Fck_cylinder * b * a * (DepthT - 0.5 * a) - CompRebar.AsTotal * fcomp * (DepthT + DepthC - h)) / Math.Abs(Nn);
Mn = (epp - dp) * Math.Abs(Nn);
}
return(Mn);
}
