diff --git a/StructureHelper/Libraries/LoaderCalculator.dll b/StructureHelper/Libraries/LoaderCalculator.dll
index 2b90ce6..c9e3136 100644
Binary files a/StructureHelper/Libraries/LoaderCalculator.dll and b/StructureHelper/Libraries/LoaderCalculator.dll differ
diff --git a/StructureHelper/Libraries/StructureMath.dll b/StructureHelper/Libraries/StructureMath.dll
new file mode 100644
index 0000000..caf7235
Binary files /dev/null and b/StructureHelper/Libraries/StructureMath.dll differ
diff --git a/StructureHelper/StructureHelper.csproj b/StructureHelper/StructureHelper.csproj
index f54c6f6..0323da4 100644
--- a/StructureHelper/StructureHelper.csproj
+++ b/StructureHelper/StructureHelper.csproj
@@ -82,6 +82,9 @@
     <Reference Include="LoaderCalculator">
       <HintPath>Libraries\LoaderCalculator.dll</HintPath>
     </Reference>
+    <Reference Include="StructureMath">
+      <HintPath>..\..\srgpt\LoaderAssistant\LoaderCalculator\LoaderCalculator\Libraries\StructureMath.dll</HintPath>
+    </Reference>
   </ItemGroup>
 
   <ItemGroup>
diff --git a/StructureHelperLogics/Models/BeamShears/IBeamShearSectionLogicInputData.cs b/StructureHelperLogics/Models/BeamShears/IBeamShearSectionLogicInputData.cs
index a073ca1..981e7d5 100644
--- a/StructureHelperLogics/Models/BeamShears/IBeamShearSectionLogicInputData.cs
+++ b/StructureHelperLogics/Models/BeamShears/IBeamShearSectionLogicInputData.cs
@@ -8,6 +8,9 @@ using StructureHelperCommon.Models.Forces;
 
 namespace StructureHelperLogics.Models.BeamShears
 {
+    /// <summary>
+    /// Implements input data for calculating bearing capacity of cross-section of RC member for shear
+    /// </summary>
     public interface IBeamShearSectionLogicInputData : IInputData
     {
         IBeamShearSection BeamShearSection { get; set; }