Fix beam shear force calculator

2025-05-24 20:26:44 +05:00
parent d108c52cac
commit f127594b5c
53 changed files with 920 additions and 121 deletions
--- a/StructureHelperLogics/Models/BeamShears/Logics/GetLogitudinalForceFactorLogic.cs
+++ b/StructureHelperLogics/Models/BeamShears/Logics/GetLogitudinalForceFactorLogic.cs
@@ -0,0 +1,109 @@
+using StructureHelperCommon.Infrastructures.Exceptions;
+using StructureHelperCommon.Models;
+using StructureHelperCommon.Models.Loggers;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperLogics.Models.BeamShears.Logics
+{
+    public class GetLogitudinalForceFactorLogic : IGetLongitudinalForceFactorLogic
+    {
+        private const double fstRatioInCompression = 1.25;
+        private const double sndRationInCompression = 0.75;
+        private double sectionArea;
+
+        public IShiftTraceLogger? TraceLogger { get; set; }
+        public IInclinedSection InclinedSection { get; set; }
+        public double LongitudinalForce { get; set; }
+
+        public GetLogitudinalForceFactorLogic(IShiftTraceLogger? traceLogger)
+        {
+            TraceLogger = traceLogger;
+        }
+
+
+        public double GetFactor()
+        {
+            TraceLogger?.AddMessage(LoggerStrings.LogicType(this), TraceLogStatuses.Service);
+            TraceLogger?.AddMessage("Logic of calculating of factor of influence of longitudinal force according to SP 63.13330.2018");
+            Check();
+            if (LongitudinalForce == 0)
+            {
+                TraceLogger?.AddMessage("Longitudinal force is zero", TraceLogStatuses.Service);
+                return 1;
+            }
+            sectionArea = InclinedSection.WebWidth * InclinedSection.FullDepth;
+            TraceLogger?.AddMessage($"Area of cross-section Ac = {InclinedSection.WebWidth} * {InclinedSection.FullDepth} = {sectionArea}(m^2)");
+            if (LongitudinalForce < 0)
+            {
+                TraceLogger?.AddMessage($"Longitudinal force N={LongitudinalForce}(N) is negative (compression)", TraceLogStatuses.Service);
+                return GetNegForceResult();
+            }
+            else
+            {
+                TraceLogger?.AddMessage("Longitudinal force N={LongitudinalForce}(N) is positive (tension)", TraceLogStatuses.Service);
+                return GetPosForceResult();
+            }
+        }
+
+        private void Check()
+        {
+            if (InclinedSection is null)
+            {
+                string errorString = ErrorStrings.DataIsInCorrect + "Inclined section is null";
+                TraceLogger?.AddMessage(errorString, TraceLogStatuses.Error);
+                throw new StructureHelperException(errorString);
+            }
+            if (InclinedSection.WebWidth <= 0 || InclinedSection.FullDepth <= 0)
+            {
+                string errorString = ErrorStrings.DataIsInCorrect + $"Inclined section width = {InclinedSection.WebWidth}(m), and full depth = {InclinedSection.FullDepth}, but both of them must be greater than zero";
+                TraceLogger?.AddMessage(errorString, TraceLogStatuses.Error);
+                throw new StructureHelperException(errorString);
+            }
+        }
+
+        private double GetPosForceResult()
+        {
+            double stressInConcrete = LongitudinalForce / sectionArea;
+            TraceLogger?.AddMessage($"Average stress in concrete (positive in tension) Sigma = {LongitudinalForce}(N) / {sectionArea}(m^2) = {stressInConcrete}(Pa)");
+            double concreteStrength = InclinedSection.ConcreteTensionStrength;
+            TraceLogger?.AddMessage($"Concrete strength Rbt = {concreteStrength}(Pa)");
+            double stressRatio = stressInConcrete / concreteStrength;
+            TraceLogger?.AddMessage($"Stress ratio rt = {stressInConcrete} / {concreteStrength} = {stressRatio}(dimensionless)");
+            double factor = 1 - 0.5 * stressRatio;
+            factor = Math.Max(factor, 0);
+            TraceLogger?.AddMessage($"Factor value fi_n = {factor}(dimensionless)");
+            return factor;
+        }
+
+        private double GetNegForceResult()
+        {
+            double stressInConcrete = (-1) * LongitudinalForce / sectionArea;
+            TraceLogger?.AddMessage($"Average stress in concrete (positive in compression) Sigma = {LongitudinalForce}(N) / {sectionArea}(m^2) = {stressInConcrete}(Pa)");
+            double concreteStrength = InclinedSection.ConcreteCompressionStrength;
+            TraceLogger?.AddMessage($"Concrete strength Rb = {concreteStrength}(Pa)");
+            double stressRatio = stressInConcrete / concreteStrength;
+            TraceLogger?.AddMessage($"Stress ratio rc = {stressInConcrete} / {concreteStrength} = {stressRatio}(dimensionless)");
+            double factor;
+            if (stressRatio < fstRatioInCompression)
+            {
+                TraceLogger?.AddMessage($"Stress ratio rc = {stressRatio} < {fstRatioInCompression}");
+                factor = 1 + stressRatio;
+            }
+            else if (stressRatio > sndRationInCompression)
+            {
+                factor = 5 * (1 - stressRatio);
+                factor = Math.Max(factor, 0);
+            }
+            else
+            {
+                factor = 1;
+            }
+            TraceLogger?.AddMessage($"Factor value fi_n = {factor}(dimensionless)");
+            return factor;
+        }
+    }
+}