private static void EC_T_Presek_PomocuFormule()
{
double Msd = 6100;
double b_eff = 175;
double b_w = 35;
double h_f = 15;
double d = 143;
double s;
double δ = h_f / d;
var μSd = 0.0;
var bi = b_eff;
BetonModelEC beton = BetonClasses.GetBetonClassListEC().Single(b => b.name == "C25/30");
ReinforcementTypeModelEC arm = ReinforcementType.GetArmatura().Single(a => a.name == "B500B");
var fcd = beton.fcd / 10;
KofZaProracunPravougaonogPresekaModelEC kof1 = new KofZaProracunPravougaonogPresekaModelEC();
KofZaProracunPravougaonogPresekaModelEC kof2 = new KofZaProracunPravougaonogPresekaModelEC();
KofZaProracunPravougaonogPresekaModelEC kof_zvezdica = new KofZaProracunPravougaonogPresekaModelEC();
//kof1.
bool done = false;
s = δ;
kof1.SetByξ(s);
kof2 = kof1;
int i = 0;
//var s_add = 0.1;
do
{
var x = kof2.ξ * d;
var Eb = ((x - h_f) / x) * kof2.εc;
kof_zvezdica.SetByEcEs1(Eb, 20);
if (kof2.εc == 0)///na pocetku ce uvek biti kof2 0;
{
bi = 1 * b_eff;
}
else
{
bi = (1 - (kof_zvezdica.αv / kof1.αv) * (1 - (h_f / (kof2.ξ * d))) * (1 - (b_w / b_eff))) * b_eff;
}
μSd = Msd * 100 / (bi * Math.Pow(d, 2) * fcd);
var kof3 = KofZaProracunPravougaonogPresekaEC.Get_Kof_From_μ(μSd);
if (Math.Round(kof2.ξ, 3) == Math.Round(kof3.ξ, 3))
{
done = true;
continue;
}
kof2 = kof3;
} while (!done);
}
private static void ec2_TacnPostupak()
{
double Msd = 180;
double Mu;
double Du = 0;
double b_eff = 20;
double b_w = 20;
double h_f = 15;
double d = 44;
double s;
double δ = h_f / d;
double Nu = 0;
double bi = 0;
BetonModelEC beton = BetonClasses.GetBetonClassListEC().Single(b => b.name == "C25/30");
ReinforcementTypeModelEC arm = ReinforcementType.GetArmatura().Single(a => a.name == "B500B");
//var fcd = 2.05;
double As = (Du - Nu) / arm.fyd;
KofZaProracunPravougaonogPresekaModelEC kof1 = new KofZaProracunPravougaonogPresekaModelEC();
KofZaProracunPravougaonogPresekaModelEC kof2 = new KofZaProracunPravougaonogPresekaModelEC();
bool done = false;
s = δ;
int i = 0;
var x = 0.0;
var s_add = 0.1;
var μSd = (Msd * 100) / (b_eff * Math.Pow(d, 2) * beton.fcd / 10);
var kof_test = KofZaProracunPravougaonogPresekaEC.Get_Kof_From_μ(μSd);
if (kof_test.ξ <= s)
{
var kof = kof_test;
x = kof.ξ * d;
As = (Msd * 100) / (kof.ζ * d * arm.fyd);
}
do
{
i++;
kof1.SetByξ(s);
x = s * d;
var Du1 = kof1.αv * b_eff * s * d * beton.fcd / 10;
var zb1 = d * (1 - kof1.ka * s);
var Ebd = ((s - δ) / s) * kof1.εc;
kof2.SetByEcEs1(Ebd, 20);
var Du2 = kof2.αv * (b_eff - b_w) * (x - h_f) * beton.fcd / 10;
var zb2 = d - h_f - kof2.ka * (x - h_f);
Mu = Du1 * zb1 / 100 - Du2 * zb2 / 100;
if (i > 30)
{
break;
}
if (Mu * 1.0005 < Msd)
{
s += s_add; continue;
}
if (Mu > Msd * 1.001)
{
s_add = s_add / 2; s -= s_add; continue;
}
if (Mu * 1.0005 >= Msd && Mu <= Msd * 1.001)
{
Du = Du1 - Du2; As = (Du - Nu) / arm.fyd; done = true;
}
} while (!done);
if (i > 30 && done == false)
{
Console.WriteLine("Can't calculate!");
Console.ReadKey();
return;
}
bi = Mu / (kof1.μRd * Math.Pow(d, 2) * beton.fcd / 10);
As = (Du - Nu) / arm.fyd;
x = kof1.ξ * d;
Console.WriteLine("n= " + i);
Console.WriteLine("As= " + As);
Console.WriteLine("x= " + x);
Console.WriteLine("Mu= " + Mu);
Console.ReadKey();
GC.Collect();
}
public MainPage()
{
ViewModel = new TransversalReinf_EC2ViewModel(65, 40, 25, 40, 6, ReinforcementType.GetArmatura().Where(n => n.name == "B500B").First(), BetonClasses.GetBetonClassListEC().Find(n => n.name == "C30/37"), new ReinforcementModelEC(ReinforcementType.GetAramturaList().Single(n => n.diameter == 16), 6));
this.InitializeComponent();
}
