public override void UpdateCalc()
{
formulae = new List <Formula>();
var concProps = ConcProperties.ByGrade(concGrade.ValueAsString);
var creepCalc = new ConcCreep(concGrade.ValueAsString, relativeHumidity.Value, time.Value, time0.Value, L.Value, W.Value);
var shrinkageCalc = new ConcShrinkage(concGrade.ValueAsString, relativeHumidity.Value, time.Value, timeShrinkStart.Value, L.Value, W.Value, cementType.ValueAsString);
notionalcreepcoeff.Value = creepCalc.NotionalCreepCoefficient;
charCompStr.Value = concProps.fck;
meanCompStr.Value = concProps.fcm;
Ac.Value = creepCalc.Ac;
u.Value = creepCalc.U;
creepTimeCoeff.Value = creepCalc.CreepTimeCoeff;
creepCoeff.Value = creepCalc.CreepCoefficient;
dryingStrain.Value = shrinkageCalc.DryingStrain;
totalShrinkageStrain.Value = shrinkageCalc.TotalShrinkageStrain;
double effectiveE = 1.08 * concProps.Ecm / (1 + creepCoeff.Value);
double stress = F.Value * 1000 / Ac.Value;
double creepStrain = stress / (effectiveE * 1000);
creepMovement.Value = H.Value * creepStrain;
shrinkageMovement.Value = H.Value * totalShrinkageStrain.Value;
formulae.AddRange(creepCalc.GetFormulae());
formulae.AddRange(shrinkageCalc.GetFormulae());
totalMovement.Value = creepMovement.Value + shrinkageMovement.Value;
formulae.Add(
Formula.FormulaWithNarrative("Total movement")
.AddFirstExpression(@"\delta=" + String.Format("{0:F2}", totalMovement.Value))
);
}
public override void UpdateCalc()
{
formulae = null;
expressions = new List <Formula>();
double T = 0;
double F = _strutForce.Value;
double a = _nodeWidth.Value;
double H = _strutLength.Value;
double b = Math.Min(_availableStrutWidth.Value, _strutLength.Value / 2);
if (_discontinuity.ValueAsString == "Full")
{
T = F * (1 - (0.7 * a / H)) / 4;
expressions.Add(
Formula.FormulaWithNarrative("Calculate bursting tie force")
.AddFirstExpression("T = " + Math.Round(T, 2) + "kN")
);
}
else
{
T = F * (b - a) / (4 * b);
expressions.Add(
Formula.FormulaWithNarrative("Calculate bursting tie force")
.AddFirstExpression("T = " + Math.Round(T, 2) + "kN")
);
}
var concProps = ConcProperties.ByGrade(_concGrade.ValueAsString);
double fctd = concProps.fctk005 / 1.5; // 1.5 is partial factor for transient loads. alpha factored is default 1 and not used here
double t = _thickness.Value;
if (T * 1000 >= 0.3 * t * H * fctd)
{
expressions.Add(
Formula.FormulaWithNarrative("Check tie force")
.AddFirstExpression(@"T \geq 0.3tHf_{fctd}")
.AddExpression(@"T \geq " + Math.Round((0.3 * t * H * fctd) / 1000, 2))
.AddConclusion("Reinforcement required")
.AddStatus(CalcStatus.FAIL)
);
_tensionToReinforce.Value = T;
}
else
{
expressions.Add(
Formula.FormulaWithNarrative("Check tie force")
.AddFirstExpression(@"T < 0.3tHf_{fctd}")
.AddExpression(@"T < " + Math.Round((0.3 * t * H * fctd) / 1000, 2))
.AddConclusion("OK")
.AddStatus(CalcStatus.PASS)
);
_tensionToReinforce.Value = 0;
}
_burstingForce.Value = T;
}
public override void UpdateCalc()
{
// reset the formulae
formulae = new List <Formula>();
//add your calc logic here
//do something!
Double secwdith = 1000;
var concprop = ConcProperties.ByGrade(_ConcreteGrade.ValueAsString);
Double linkdia = double.Parse(_linkdia.ValueAsString);
Double bardia = double.Parse(_Bardia.ValueAsString);
Double d = _depth.Value - _cover.Value - linkdia - bardia / 2;
// in accordance with section 9.2.1.1
Asmin9 = Math.Max((0.26 * concprop.fctm * secwdith * d) / (_Fy.Value), 0.0013 * secwdith * d);
//add formulae and commentary as you work through
formulae.Add(Formula.FormulaWithNarrative("Minimum steel for brittle failure")
.AddExpression(_Asmin.Symbol + "= Min (0.26*f_{ctm}*b_{t}*d,0.0013*b_t*d)=" + Asmin9 + _Asmin.Unit)
.AddRef("EN1992-1-1 9.2.1.1(1)")
);
//in accordance with section 7
k1 = 0.8;
k2 = 0.5;
k3 = 3.4;
k4 = 0.425;
kc = 0.4;
k = 1;
//Double hcef = Math.Min(2.5 * (_depth.Value - d), Math.Min(_depth.Value / 2, (_depth.Value - x) / 3));
Double hcef = 0.2 * _depth.Value;
Double Aceff = secwdith * hcef;
//minimum steel requirements
Asmin7 = (kc * k * concprop.fctm * Aceff) / _Fy.Value;
formulae.Add(Formula.FormulaWithNarrative("Minimum steel for cracking")
.AddExpression("k_{c}=" + kc)
.AddExpression("k=" + k)
.AddExpression("A_{ct}=0.2*h=" + Aceff)
.AddExpression(_Asmin.Symbol + "= (k_{c}*k*f_{ct,eff}*A_{ct})/f_{y} =" + Asmin7 + _Asmin.Unit)
.AddRef("EN1992-1-1 7.3.2 (7.1)")
);
//worst case minimum
_Asmin.Value = Math.Max(Asmin7, Asmin9);
formulae.Add(Formula.FormulaWithNarrative("Minimum steel")
.AddExpression(_Asmin.Symbol + "=" + _Asmin.Value + _Asmin.Unit)
);
}
public override void UpdateCalc()
{
formulae = null;
ConcProperties props = ConcProperties.ByGrade(_grade.ValueAsString);
_fck.Value = props.fck;
_fckcube.Value = props.fckcube;
_fcm.Value = props.fcm;
_fctm.Value = props.fctm;
_fctk005.Value = props.fctk005;
_fctk095.Value = props.fctk095;
_Ecm.Value = props.Ecm;
_Ec1.Value = props.Epsilonc1;
_Ecu1.Value = props.Epsiloncu1;
_Ec2.Value = props.Epsilonc2;
_Ecu2.Value = props.Epsiloncu2;
_n.Value = props.n;
_Ec3.Value = props.Epsilonc3;
_Ecu3.Value = props.Epsiloncu3;
}
public override void UpdateCalc()
{
formulae = null;
expressions = new List <Formula>();
var concProps = ConcProperties.ByGrade(concGrade.ValueAsString);
// CALC SHRINKAGE FOR FIRST AND SECOND RH VALUES
var shrinkageExpression = Formula.FormulaWithNarrative("Calculate shrinkage");
if (time.Value <= relativeHumiditySwitchTime.Value)
{
var shrinkageCalc1 = new ConcShrinkage(concGrade.ValueAsString, relativeHumidity1.Value, time.Value, timeShrinkStart.Value, L.Value, W.Value, cementType.ValueAsString);
totalShrinkageStrain.Value = shrinkageCalc1.TotalShrinkageStrain;
shrinkageExpression.AddFirstExpression(totalShrinkageStrain.Symbol + "=" + Math.Round(totalShrinkageStrain.Value, 2));
}
else
{
var shrinkageCalc1 = new ConcShrinkage(concGrade.ValueAsString, relativeHumidity1.Value, relativeHumiditySwitchTime.Value, timeShrinkStart.Value, L.Value, W.Value, cementType.ValueAsString);
var shrinkageCalc2 = new ConcShrinkage(concGrade.ValueAsString, relativeHumidity2.Value, relativeHumiditySwitchTime.Value, timeShrinkStart.Value, L.Value, W.Value, cementType.ValueAsString);
var shrinkageCalc3 = new ConcShrinkage(concGrade.ValueAsString, relativeHumidity2.Value, time.Value, timeShrinkStart.Value, L.Value, W.Value, cementType.ValueAsString);
totalShrinkageStrain.Value = shrinkageCalc1.TotalShrinkageStrain + (shrinkageCalc3.TotalShrinkageStrain - shrinkageCalc2.TotalShrinkageStrain);
shrinkageExpression.Narrative += Environment.NewLine + "Calculate shrinkage up to change in humidity using RH1 (1) and RH2 (2), and " +
"calculate total shrinkage using RH2 (3).";
shrinkageExpression.AddFirstExpression(@"\epsilon_{cs,1} = " + string.Format("{0:#.##E+0}", shrinkageCalc1.TotalShrinkageStrain));
shrinkageExpression.AddExpression(@"\epsilon_{cs,2} = " + string.Format("{0:#.##E+0}", shrinkageCalc2.TotalShrinkageStrain));
shrinkageExpression.AddExpression(@"\epsilon_{cs,3} = " + string.Format("{0:#.##E+0}", shrinkageCalc3.TotalShrinkageStrain));
shrinkageExpression.AddExpression(totalShrinkageStrain.Symbol + @"= \epsilon_{cs,1} + (\epsilon_{cs,3} - \epsilon_{cs,2}) = " + string.Format("{0:#.##E+0}", totalShrinkageStrain.Value));
}
Ac.Value = L.Value * W.Value;
u.Value = 2 * L.Value + 2 * W.Value;
totalCreepMovement.Value = 0;
var creepExpression = Formula.FormulaWithNarrative("Calculate creep from each load" + Environment.NewLine);
double Et = 1.08 * concProps.Ecm;
foreach (var loadEvent in _loads.Value)
{
double load = loadEvent[0];
double loadTime = loadEvent[1];
if (loadTime < time.Value)
{
if (loadTime > relativeHumiditySwitchTime.Value)
{
// load only affected by RH2
var creepCalc = new ConcCreep(concGrade.ValueAsString, relativeHumidity2.Value, time.Value, loadTime, L.Value, W.Value);
double effectiveE = Et / (1 + creepCalc.CreepCoefficient);
double stress = load * 1000 / Ac.Value;
double creepStrain = stress / (effectiveE * 1000);
double creepMovement = H.Value * creepStrain;
this.totalCreepMovement.Value += creepMovement;
creepExpression.Narrative += "Elastic movement plus creep due to " + load + "kN applied at " + loadTime + " days: " + creepMovement + "mm" + Environment.NewLine;
}
else if (time.Value < relativeHumiditySwitchTime.Value)
{
//load only affected by RH1
var creepCalc = new ConcCreep(concGrade.ValueAsString, relativeHumidity1.Value, time.Value, loadTime, L.Value, W.Value);
double effectiveE = Et / (1 + creepCalc.CreepCoefficient);
double stress = load * 1000 / Ac.Value;
double creepStrain = stress / (effectiveE * 1000);
double creepMovement = H.Value * creepStrain;
this.totalCreepMovement.Value += creepMovement;
creepExpression.Narrative += "Elastic movement plus creep due to " + load + "kN applied at " + loadTime + " days: " + creepMovement + "mm" + Environment.NewLine;
}
else
{
var creepCalc1 = new ConcCreep(concGrade.ValueAsString, relativeHumidity1.Value, relativeHumiditySwitchTime.Value, loadTime, L.Value, W.Value);
var creepCalc2_1 = new ConcCreep(concGrade.ValueAsString, relativeHumidity2.Value, relativeHumiditySwitchTime.Value, loadTime, L.Value, W.Value);
var creepCalc2_2 = new ConcCreep(concGrade.ValueAsString, relativeHumidity2.Value, time.Value, loadTime, L.Value, W.Value);
double effCreepCoeff = creepCalc1.CreepCoefficient + (creepCalc2_2.CreepCoefficient - creepCalc2_1.CreepCoefficient);
double effectiveE = Et / (1 + effCreepCoeff);
double stress = load * 1000 / Ac.Value;
double creepStrain = stress / (effectiveE * 1000);
double creepMovement = H.Value * creepStrain;
this.totalCreepMovement.Value += creepMovement;
creepExpression.Narrative += "Creep coefficients :" + creepCalc1.CreepCoefficient + ", " + creepCalc2_1.CreepCoefficient + ", " + creepCalc2_2.CreepCoefficient + ". " + Environment.NewLine;
creepExpression.Narrative += "Elastic movement plus creep due to " + load + "kN applied at " + loadTime + " days: " + creepMovement + "mm" + Environment.NewLine;
}
}
}
expressions.Add(shrinkageExpression);
expressions.Add(creepExpression);
charCompStr.Value = concProps.fck;
meanCompStr.Value = concProps.fcm;
shrinkageMovement.Value = H.Value * totalShrinkageStrain.Value;
totalMovement.Value = this.totalCreepMovement.Value + shrinkageMovement.Value;
expressions.Add(
Formula.FormulaWithNarrative("Total movement")
.AddFirstExpression(String.Format("{0:F3}", totalMovement.Value))
);
}
