71 lines
4.0 KiB
C#
71 lines
4.0 KiB
C#
using StructureHelperCommon.Models;
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using StructureHelperCommon.Models.Loggers;
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using StructureHelperCommon.Services;
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using StructureHelperLogics.Models.BeamShears.Logics;
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//Copyright (c) 2025 Redikultsev Evgeny, Ekaterinburg, Russia
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//All rights reserved.
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namespace StructureHelperLogics.Models.BeamShears
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{
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/// <inheritdoc/>
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public class StirrupByDensityStrengthLogic : IBeamShearStrenghLogic
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{
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//private const double minStirrupRatio = 0.25;
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private readonly IStirrupEffectiveness stirrupEffectiveness;
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private readonly IStirrupByDensity stirrupByDensity;
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private readonly IInclinedSection inclinedSection;
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public StirrupByDensityStrengthLogic(
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IStirrupEffectiveness stirrupEffectiveness,
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IStirrupByDensity stirrupByDensity,
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IInclinedSection inclinedSection,
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IShiftTraceLogger? traceLogger)
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{
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this.stirrupEffectiveness = stirrupEffectiveness;
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this.stirrupByDensity = stirrupByDensity;
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this.inclinedSection = inclinedSection;
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TraceLogger = traceLogger;
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}
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public IShiftTraceLogger? TraceLogger { get; set; }
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/// <inheritdoc/>
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public double GetShearStrength()
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{
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Check();
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TraceLogger?.AddMessage(LoggerStrings.LogicType(this), TraceLogStatuses.Service);
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TraceLogger?.AddMessage("Calculation has been started", TraceLogStatuses.Debug);
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double crackLength = inclinedSection.EndCoord - inclinedSection.StartCoord;
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TraceLogger?.AddMessage($"Length of crack = {inclinedSection.EndCoord} - {inclinedSection.StartCoord} = {crackLength}(m)");
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double crackEndCoord = Math.Min(stirrupByDensity.EndCoordinate, inclinedSection.EndCoord);
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double crackStartCoord = Math.Max(stirrupByDensity.StartCoordinate, inclinedSection.StartCoord);
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double crackLengthViaStirrup = crackEndCoord - crackStartCoord;
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TraceLogger?.AddMessage($"Length of crack via stirrup = {crackEndCoord} - {crackStartCoord} = {crackLengthViaStirrup}(m)");
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double maxCrackLength = stirrupEffectiveness.MaxCrackLengthRatio * inclinedSection.EffectiveDepth;
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TraceLogger?.AddMessage($"Max length of crack = {stirrupEffectiveness.MaxCrackLengthRatio} * {inclinedSection.EffectiveDepth} = {maxCrackLength}(m)");
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double finalCrackLength = Math.Min(crackLengthViaStirrup, maxCrackLength);
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TraceLogger?.AddMessage($"Length of crack = Min({crackLengthViaStirrup}, {maxCrackLength}) = {finalCrackLength}(m)");
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double finalDensity = stirrupEffectiveness.StirrupShapeFactor * stirrupEffectiveness.StirrupPlacementFactor * stirrupByDensity.StirrupDensity;
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TraceLogger?.AddMessage($"Stirrups design density qsw = {stirrupEffectiveness.StirrupShapeFactor} * {stirrupEffectiveness.StirrupPlacementFactor} * {stirrupByDensity.StirrupDensity} = {finalDensity}(N/m)");
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double concreteDensity = inclinedSection.WebWidth * inclinedSection.ConcreteTensionStrength;
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double minFinalDensity = stirrupEffectiveness.MinimumStirrupRatio * concreteDensity;
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if (finalDensity < minFinalDensity)
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{
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TraceLogger?.AddMessage($"Since stirrups design density qsw = {finalDensity}(N/m) less than qsw,min = {stirrupEffectiveness.MinimumStirrupRatio} * {concreteDensity} = {minFinalDensity}(N/m), final density is equal to zero", TraceLogStatuses.Warning);
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finalDensity = 0;
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}
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double strength = finalDensity * finalCrackLength;
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TraceLogger?.AddMessage($"Bearing capacity of stirrups V = {finalDensity} * {finalCrackLength} = {strength}(N)");
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TraceLogger?.AddMessage("Calculation has been finished successfully", TraceLogStatuses.Debug);
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return strength;
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}
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private void Check()
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{
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CheckObject.IsNull(stirrupByDensity);
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CheckObject.IsNull(inclinedSection);
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}
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}
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}
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