private Dictionary <string, ShearWallPanelRigidAnalysisParameters> DetermineAllWallStiffnessParametersSansOffset()
{
var stiffnesses = new Dictionary <string, ShearWallPanelRigidAnalysisParameters>();
foreach (AnalyticalWallLateral wall in Walls)
{
ShearWallPanelRigidAnalysisParameters stiffnessParameters = DetermineWallStiffnessParametersSansOffset(wall);
stiffnesses.Add(wall.UniqueId, stiffnessParameters);
}
return(stiffnesses);
}
private ShearWallPanelResponseCollection DetermineWallLoadPatternResponses(AnalyticalWallLateral wall)
{
ShearWallPanelRigidAnalysisParameters wallStiffness = WallStiffnesses[wall.UniqueId];
var responses = new ShearWallPanelResponseCollection(wall.UniqueId, wall.WallLine);
foreach (LateralLevelForce force in Forces)
{
responses.Add(DetermineWallResponse(wall, wallStiffness, force));
}
return(responses);
}
public static Table GenerateShearWallForceStiffnessTable(RigidAnalysis analysis)
{
var table = new Table("Rigid Analysis Wall Force Determination");
table.AddColumn("level", ColumnDataType.Text);
table.AddColumn("load_category", ColumnDataType.Text);
table.AddColumn("load_case", ColumnDataType.Text);
table.AddColumn("wall_panel", ColumnDataType.Text);
table.AddColumn("R", ColumnDataType.Number, "R (k/in)", 1);
table.AddColumn("d", ColumnDataType.Number, "d (in)", 1);
table.AddColumn("Rd", ColumnDataType.Number, "$R d$ (k-ft/in)", 0);
table.AddColumn("Rd2", ColumnDataType.Number, "$R d^2$ (k-ft^2/in)", 0);
table.AddColumn("direct_force", ColumnDataType.Number, "Direct Force $F_v$ (lb)", 0);
table.AddColumn("torsional_force", ColumnDataType.Number, "Torsional Force $F_t$ (lb)", 0);
table.AddColumn("total_force", ColumnDataType.Number, "Total Force $F_v + F_t$ (lb)", 0);
table.SetExpression("Rd", "R * d");
table.SetExpression("Rd2", "R * d * d");
table.SetExpression("total_force", "direct_force + torsional_force");
table.SortByColumns("load_case", SortOrder.Ascending, "level", SortOrder.Descending, "wall_panel",
SortOrder.Ascending);
foreach (AnalyticalWallLateral wall in analysis.Walls)
{
ShearWallPanelRigidAnalysisParameters stiffnessAtWall = analysis.WallStiffnesses[wall.UniqueId];
ShearWallPanelResponseCollection resultsAtWall = analysis.Responses.WallLoadCaseResults[wall.UniqueId];
foreach (ShearWallPanelResponse response in resultsAtWall)
{
DataRow row = table.NewRow();
row["level"] = wall.TopLevel.Name;
row["load_category"] = response.LoadCase.LoadPatternType;
row["load_case"] = response.LoadCase;
row["wall_panel"] = wall.UniqueId;
row["R"] = stiffnessAtWall.K.ConvertTo(ForcePerLengthUnit.KipPerInch);
row["d"] = stiffnessAtWall.SignedOffsetFromCenterOfRigidity.ConvertTo(LengthUnit.Foot);
row["direct_force"] = response.DirectShear.ConvertTo(ForceUnit.Pound);
row["torsional_force"] = response.TorsionalShear.ConvertTo(ForceUnit.Pound);
table.AddRow(row);
}
}
return(table);
}
private Point2D DetermineCenterOfRigidity()
{
Force SumOfXTimesYCenters = new Force(0, ForceUnit.Kip);
Force SumOfYTimesXCenters = new Force(0, ForceUnit.Kip);
foreach (AnalyticalWallLateral wall in Walls)
{
ShearWallPanelRigidAnalysisParameters wallStiffness = WallStiffnesses[wall.UniqueId];
SumOfXTimesYCenters = (Force)(SumOfXTimesYCenters + wallStiffness.Kx * new Length(wall.Centroid.Y, LengthUnit.Inch));
SumOfYTimesXCenters = (Force)(SumOfYTimesXCenters + wallStiffness.Ky * new Length(wall.Centroid.X, LengthUnit.Inch));
}
Length xCenter = (Length)(SumOfYTimesXCenters / LevelStiffness.Y);
Length yCenter = (Length)(SumOfXTimesYCenters / LevelStiffness.X);
return(new Point2D(xCenter.ConvertTo(LengthUnit.Inch), yCenter.ConvertTo(LengthUnit.Inch)));
}
private ShearWallPanelResponse DetermineWallResponse(AnalyticalWallLateral wall,
ShearWallPanelRigidAnalysisParameters wallStiffness, LateralLevelForce force)
{
Force directXShear = (Force)(wallStiffness.Kx * force.DirectX / LevelStiffness.X);
Force directYShear = (Force)(wallStiffness.Ky * force.DirectY / LevelStiffness.Y);
Vector2D directVector = new Vector2D(directXShear.Value, directYShear.Value);
var wallUnitVector = wall.WallLine.ToVector2D().Normalize();
var response = new ShearWallPanelResponse(wall.UniqueId, force.LoadPattern, wall.WallLine);
response.DirectShear = directVector.AngleTo(wallUnitVector).Degrees < 90
? new Force(directVector.Length, ForceUnit.Kip)
: new Force(-directVector.Length, ForceUnit.Kip);
response.TorsionalShear = (Force)(wallStiffness.K * wallStiffness.SignedOffsetFromCenterOfRigidity *
force.TotalT(LateralLevel.CenterOfRigidity) / LevelStiffness.J);
return(response);
}
