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>();
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))
);
}
