85 lines
4.3 KiB
C#
85 lines
4.3 KiB
C#
using StructureHelperCommon.Infrastructures.Enums;
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using StructureHelperCommon.Infrastructures.Exceptions;
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using StructureHelperCommon.Infrastructures.Interfaces;
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using StructureHelperCommon.Models;
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namespace StructureHelperLogics.Models.BeamShears
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{
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public class StirrupByRebarToDensityConvertStrategy : IObjectConvertStrategy<IStirrupByDensity, IStirrupByRebar>
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{
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private const double stirrupStrengthFactor = 0.8d;
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private const double maxStirrupStrength = 3e8;
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private IInclinedSection inclinedSection;
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private IUpdateStrategy<IStirrup> updateStrategy;
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public IShiftTraceLogger TraceLogger { get; set; }
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public StirrupByRebarToDensityConvertStrategy(IShiftTraceLogger traceLogger, IInclinedSection inclinedSection)
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{
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TraceLogger = traceLogger;
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this.inclinedSection = inclinedSection;
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}
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public StirrupByRebarToDensityConvertStrategy(IUpdateStrategy<IStirrup> updateStrategy, IShiftTraceLogger traceLogger)
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{
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this.updateStrategy = updateStrategy;
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TraceLogger = traceLogger;
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}
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public IStirrupByDensity Convert(IStirrupByRebar source)
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{
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updateStrategy ??= new StirrupBaseUpdateStrategy();
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StirrupByDensity stirrupByDensity = new(Guid.NewGuid());
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updateStrategy.Update(stirrupByDensity, source);
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stirrupByDensity.StirrupDensity = GetStirrupDensity(source);
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stirrupByDensity.StartCoordinate = source.StartCoordinate;
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stirrupByDensity.EndCoordinate = source.EndCoordinate;
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return stirrupByDensity;
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}
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private double GetStirrupDensity(IStirrupByRebar source)
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{
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double area = Math.PI * source.Diameter * source.Diameter / 4d;
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TraceLogger?.AddMessage($"Area of rebar = {Math.PI} * ({source.Diameter})^2 / 4 = {area}(m^2)");
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double minimizedStrength = GetRebarStrength(source);
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double spiralEffectiveness = 1;
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if (source.IsSpiral == true)
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{
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spiralEffectiveness = GetSpiralEffectiveness(source);
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}
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double density = minimizedStrength * area * source.LegCount / source.Spacing * spiralEffectiveness;
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TraceLogger?.AddMessage($"Density of stirrups = {minimizedStrength} * {area} * {source.LegCount} / {source.Spacing} * {spiralEffectiveness} = {density}(N/m)");
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return density;
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}
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private double GetRebarStrength(IStirrupByRebar source)
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{
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double materialStrength = source.Material.GetStrength(LimitStates.ULS, CalcTerms.ShortTerm).Tensile;
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TraceLogger?.AddMessage($"Stirrup material strength Rsw = {materialStrength}");
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double stirrupStrength = stirrupStrengthFactor * materialStrength;
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TraceLogger?.AddMessage($"Strength of rebar Rsw = {stirrupStrengthFactor} * {materialStrength} = {stirrupStrength}(Pa)");
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double minimizedStrength = Math.Min(stirrupStrength, maxStirrupStrength);
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TraceLogger?.AddMessage($"Strength of rebar Rsw = Min({stirrupStrength}, {maxStirrupStrength})= {minimizedStrength}(Pa)");
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return minimizedStrength;
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}
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private double GetSpiralEffectiveness(IStirrupByRebar source)
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{
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if (inclinedSection is null)
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{
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string errorString = ErrorStrings.ParameterIsNull + ": Inclined Section";
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TraceLogger?.AddMessage(errorString, TraceLogStatuses.Error);
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throw new StructureHelperException(errorString);
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}
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double spiralHeight = inclinedSection.EffectiveDepth - (inclinedSection.FullDepth - inclinedSection.EffectiveDepth);
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TraceLogger?.AddMessage($"Spiral height = {spiralHeight}(m)");
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double spiralSpacing = source.Spacing;
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TraceLogger?.AddMessage($"Spiral spacing = {spiralSpacing}(m)");
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double spiralAng = Math.Atan2(spiralHeight, spiralSpacing);
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double spriralEffectiveness = Math.Sin(spiralAng);
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double spiralAngInDegrees = 57.29578 * spiralAng; // 180/PI
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TraceLogger?.AddMessage($"Spiral effectiveness factor = sin({spiralAngInDegrees}(deg)) = {spriralEffectiveness}");
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return spriralEffectiveness;
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}
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}
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}
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