ConcreteBucklingCalculator was added

StructureHelperLogics/NdmCalculations/Analyses/ByForces/ForceTupleInputData.cs

@@ -0,0 +1,18 @@
+using LoaderCalculator.Data.Ndms;
+using StructureHelperCommon.Models.Calculators;
+using StructureHelperCommon.Models.Forces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperLogics.NdmCalculations.Analyses.ByForces
+{
+    public class ForceTupleInputData : IForceTupleInputData
+    {
+        public IEnumerable<INdm> NdmCollection { get; set; }
+        public IForceTuple Tuple { get; set; }
+        public IAccuracy Accuracy { get; set; }
+    }
+}