static void Main()
{
// PRACTICAL EXAMPLE: SETTING UP LOAD GROUPS
// This example shows the core steps of creating load groups for a model.
// This example was last updated 2022-04-06, using the ver. 21.1.0 FEM-Design API.
// CREATING LOAD CASES
LoadCase deadLoad1 = new LoadCase("Deadload1", LoadCaseType.DeadLoad, LoadCaseDuration.Permanent);
LoadCase deadLoad2 = new LoadCase("Deadload2", LoadCaseType.DeadLoad, LoadCaseDuration.Permanent);
LoadCase liveLoad1 = new LoadCase("Liveload1", LoadCaseType.Static, LoadCaseDuration.Permanent);
LoadCase liveLoad2 = new LoadCase("Liveload2", LoadCaseType.Static, LoadCaseDuration.Permanent);
List <LoadCase> loadCasesDeadLoads = new List <LoadCase>()
{
deadLoad1, deadLoad2
};
List <LoadCase> loadCaseLiveLoads = new List <LoadCase>()
{
liveLoad1, liveLoad2
};
// FETCHING LOAD CATEGORY DATABASE
var loadCategoryDatabase = LoadCategoryDatabase.GetDefault();
LoadCategory loadCategory = loadCategoryDatabase.LoadCategoryByName("A");
// CREATING LOAD GROUPS
var LG1 = new ModelGeneralLoadGroup(new LoadGroupPermanent(1, 1.35, 1, 1, loadCasesDeadLoads, ELoadGroupRelationship.Simultaneous, 0.89, "LG1"));
var LG2 = new ModelGeneralLoadGroup(new LoadGroupTemporary(1.5, loadCategory.Psi0, loadCategory.Psi1, loadCategory.Psi2, true, loadCaseLiveLoads, ELoadGroupRelationship.Alternative, "LG2"));
var loadGroups = new List <ModelGeneralLoadGroup>()
{
LG1, LG2
};
// CREATING AND OPENING NEW MODEL
var model2 = new Model(Country.S, null, null, loadCasesDeadLoads.Concat(loadCaseLiveLoads).ToList(), null, loadGroups);
string path = Path.GetFullPath("output/LoadGroups.struxml");
if (!Directory.Exists("output"))
{
Directory.CreateDirectory("output");
}
model2.SerializeModel(path);
var app = new Calculate.Application();
app.OpenStruxml(path, true);
}
static void Main()
{
// PRACTICAL EXAMPLE: COMBINING LOAD GROUPS
// This example shows the steps for creating a complete set of load combination,
// combining existing load groups. In addition to the main program, there are two
// public functions at the bottom - CombineULS and CombineSLS.
// This example was last updated 2022-04-06, using the ver. 21.1.0 FEM-Design API.
// Create load cases
LoadCase deadLoad1 = new LoadCase("Deadload1", LoadCaseType.DeadLoad, LoadCaseDuration.Permanent);
LoadCase deadLoad2 = new LoadCase("Deadload2", LoadCaseType.DeadLoad, LoadCaseDuration.Permanent);
LoadCase liveLoad1 = new LoadCase("Liveload1", LoadCaseType.Static, LoadCaseDuration.Permanent);
LoadCase liveLoad2 = new LoadCase("Liveload2", LoadCaseType.Static, LoadCaseDuration.Permanent);
LoadCase windLoad1 = new LoadCase("Windload1", LoadCaseType.Static, LoadCaseDuration.Permanent);
LoadCase windLoad2 = new LoadCase("Windload2", LoadCaseType.Static, LoadCaseDuration.Permanent);
List <LoadCase> loadCasesDeadLoads = new List <LoadCase>()
{
deadLoad1, deadLoad2
};
List <LoadCase> loadCaseCategoryA = new List <LoadCase>()
{
liveLoad1, liveLoad2
};
List <LoadCase> loadCaseCategoryWind = new List <LoadCase>()
{
windLoad1, windLoad2
};
List <LoadCase> loadCases = loadCasesDeadLoads.Concat(loadCaseCategoryA).Concat(loadCaseCategoryWind).ToList();
// Get the load categories that hold the coefficients
var loadCategoryDatabase = LoadCategoryDatabase.GetDefault();
LoadCategory loadCategoryA = loadCategoryDatabase.LoadCategoryByName("A");
LoadCategory loadCategoryWind = loadCategoryDatabase.LoadCategoryByName("Wind");
// Create load groups
var LGPermanent = new LoadGroupPermanent(1, 1.35, 1, 1, loadCasesDeadLoads, ELoadGroupRelationship.Entire, 0.89, "LGPermanent");
var LGA = new LoadGroupTemporary(1.5, loadCategoryA.Psi0, loadCategoryA.Psi1, loadCategoryA.Psi2, true, loadCaseCategoryA, ELoadGroupRelationship.Alternative, "LGCategoryA");
var LGWind = new LoadGroupTemporary(1.5, loadCategoryWind.Psi0, loadCategoryWind.Psi1, loadCategoryWind.Psi2, true, loadCaseCategoryWind, ELoadGroupRelationship.Alternative, "LGCategoryWind");
var loadGroups = new List <LoadGroupBase>()
{
LGPermanent, LGA, LGWind
};
// Wrap the load groups so that they can be added to the load group table
var generalLoadGroups = new List <ModelGeneralLoadGroup>()
{
new ModelGeneralLoadGroup(LGPermanent), new ModelGeneralLoadGroup(LGA),
new ModelGeneralLoadGroup(LGWind)
};
// Generate ULS and SLS Combinations
List <LoadCombination> loadCombinations;
LoadCombinationTable loadCombinationTable = new LoadCombinationTable();
CombineULS(loadGroups, loadCombinationTable);
CombineSLS(loadGroups, loadCombinationTable);
loadCombinations = loadCombinationTable.LoadCombinations;
// Create model and open file in FEM design
var model2 = new Model(Country.S, null, null, loadCases, loadCombinations, generalLoadGroups);
string path = Path.GetFullPath("output/LoadGroupsAndCombinations.struxml");
if (!Directory.Exists("output"))
{
Directory.CreateDirectory("output");
}
model2.SerializeModel(path);
var app = new Calculate.Application();
app.OpenStruxml(path, true);
}
static void Main()
{
// EXAMPLE 4: EDITING AN EXISTING MODEL
// In this example, we will edit an existing model by isolating a floor and replacing supporting
// walls and pillars with appropriate supports. Using height as a point of comparison we can find
// which elements to reuse from the old model, and create a new model with our selected elements.
// This example was last updated 2022-04-13, using the ver. 21.1.0 FEM-Design API.
// READ THE MODEL:
// Deserialize the current model to access all the data in the .struxml file.
FemDesign.Model model = FemDesign.Model.DeserializeFromFilePath("Example 4 - model.struxml");
// ISOLATE A FLOOR:
// Choose which floor will be singled out.
int floor = 3;
FemDesign.StructureGrid.Storey storey = model.Entities.Storeys.Storey[floor];
List <GenericClasses.IStructureElement> storeyAsList = new List <GenericClasses.IStructureElement> {
storey
};
double zCoord = storey.Origo.Z;
// POINT SUPPORTS:
// Find all pillars supporting the chosen floor, and place point supports in their place.
// We can use the fact that point [1] of any pillar is always the highest one.
var supports = new List <GenericClasses.ISupportElement>();
for (int i = 0; i < model.Entities.Bars.Count; i++)
{
Bars.Bar tempBar = model.Entities.Bars[i];
if (tempBar.BarPart.Type != Bars.BarType.Column)
{
continue;
}
if (Math.Abs(tempBar.BarPart.Edge.Points[1].Z - zCoord) < Tolerance.LengthComparison)
{
var tempSupport = new Supports.PointSupport(
point: new Geometry.FdPoint3d(tempBar.BarPart.Edge.Points[1].X, tempBar.BarPart.Edge.Points[1].Y, zCoord),
motions: Releases.Motions.RigidPoint(),
rotations: Releases.Rotations.Free()
);
supports.Add(tempSupport);
}
}
// ELEMENTS:
// The model only contains plates and walls, so we will not be looking for beams etc.
// We are looking for the floor plate at the right height, and the walls below it to
// replace them with line supports.
var elements = new List <GenericClasses.IStructureElement>();
// TESTING SLABS:
// Slabs have a property which indicates if they are floors (plate) or walls (wall).
// Based on this, we can sort out if we want to use them as an element or place a
// line support in their stead.
for (int i = 0; i < model.Entities.Slabs.Count; i++)
{
Shells.Slab tempSlab = model.Entities.Slabs[i];
if (tempSlab.Type == Shells.SlabType.Plate && Math.Abs(tempSlab.SlabPart.LocalPos.Z - zCoord) < Tolerance.LengthComparison)
{
elements.Add(tempSlab);
}
else if (tempSlab.Type == Shells.SlabType.Wall)
{
if (Math.Abs(tempSlab.SlabPart.Region.Contours[0].Edges[2].Points[0].Z - zCoord) < Tolerance.LengthComparison)
{
// Creating supports with translational stiffnes in the Z direction only.
var tempSupport = new Supports.LineSupport(
edge: tempSlab.SlabPart.Region.Contours[0].Edges[2],
motions: new Releases.Motions(0, 0, 0, 0, 10E7, 10E7),
rotations: new Releases.Rotations(0, 0, 0, 0, 0, 0),
movingLocal: true
);
supports.Add(tempSupport);
}
}
}
// TESTING PANELS:
// Panels do not have the same property as slabs. Instead, we compare the height of all the
// edge curves of the panel to discern if it is horizontal or not.
for (int i = 0; i < model.Entities.Panels.Count; i++)
{
Shells.Panel tempPanel = model.Entities.Panels[i];
bool isSlab = true;
for (int j = 0; j < tempPanel.Region.Contours[0].Edges.Count; j++)
{
if (tempPanel.Region.Contours[0].Edges[j].Points[0].Z != tempPanel.Region.Contours[0].Edges[j].Points[1].Z)
{
isSlab = false;
break;
}
}
if (isSlab && Math.Abs(tempPanel.Region.Contours[0].Edges[0].Points[0].Z - zCoord) < Tolerance.LengthComparison)
{
elements.Add(tempPanel);
}
else if (!isSlab && Math.Abs(tempPanel.Region.Contours[0].Edges[2].Points[0].Z - zCoord) < Tolerance.LengthComparison)
{
// Creating supports with translational stiffnes in the Z direction only.
var tempSupport = new Supports.LineSupport(
edge: tempPanel.Region.Contours[0].Edges[2],
motions: new Releases.Motions(0, 0, 0, 0, 10E7, 10E7),
rotations: new Releases.Rotations(0, 0, 0, 0, 0, 0),
movingLocal: true
);
supports.Add(tempSupport);
}
}
// LOADS:
// Similar to supports and elements, we will reuse loads from the model if they are on the correct height
var loads = new List <GenericClasses.ILoadElement>();
for (int i = 0; i < model.Entities.Loads.LineLoads.Count; i++)
{
if (Math.Abs(model.Entities.Loads.LineLoads[i].Edge.XAxis.Z - zCoord) < Tolerance.LengthComparison)
{
loads.Add(model.Entities.Loads.LineLoads[i]);
}
}
for (int i = 0; i < model.Entities.Loads.SurfaceLoads.Count; i++)
{
Loads.SurfaceLoad tempLoad = model.Entities.Loads.SurfaceLoads[i];
if (Math.Abs(tempLoad.Region.Contours[0].Edges[0].Points[0].Z - zCoord) < Tolerance.LengthComparison)
{
loads.Add(tempLoad);
}
}
// CREATE NEW MODEL:
// With a new model, we can add all our gathered elements to it. We can also take load cases,
// load combinations, and the storey marker directly from the old model.
FemDesign.Model newModel = new FemDesign.Model(Country.S);
newModel.AddElements(elements);
newModel.AddSupports(supports);
newModel.AddLoads(loads);
newModel.AddLoadCases(model.Entities.Loads.LoadCases);
newModel.AddLoadCombinations(model.Entities.Loads.LoadCombinations);
newModel.AddElements(storeyAsList);
// SAVE AND RUN:
// Create a file path for the new model, serialize it, and run the script!
string path = Path.GetFullPath("output/edited_model.struxml");
if (!Directory.Exists("output"))
{
Directory.CreateDirectory("output");
}
newModel.SerializeModel(path);
Console.WriteLine($"Opening file at {path}");
var app = new Calculate.Application();
app.OpenStruxml(path, false);
}
static void Main()
{
// PRACTICAL EXAMPLE: CREATE POST-TENSIONED CABLES
// This example will show you how to add post-tensioned cables to your concrete beam.
// This example was last updated 2022-05-03, using the ver. 21.1.0 FEM-Design API.
// DEFINE GEOMETRY
var p1 = new Geometry.FdPoint3d(0.0, 2.0, 0);
var p2 = new Geometry.FdPoint3d(10, 2.0, 0);
var edge = new Geometry.Edge(p1, p2, Geometry.FdVector3d.UnitY());
// CREATE BEAM
Materials.MaterialDatabase materialsDB = Materials.MaterialDatabase.DeserializeStruxml("materials.struxml");
Sections.SectionDatabase sectionsDB = Sections.SectionDatabase.DeserializeStruxml("sections.struxml");
var material = materialsDB.MaterialByName("C35/45");
var section = sectionsDB.SectionByName("Concrete sections, Rectangle, 300x900");
var bar = new Bars.Bar(
edge,
Bars.BarType.Beam,
material,
sections: new Sections.Section[] { section },
connectivities: new Bars.Connectivity[] { Bars.Connectivity.GetRigid() },
eccentricities: new Bars.Eccentricity[] { Bars.Eccentricity.GetDefault() },
identifier: "B");
// CREATE POST-TENSIONED CABLE
var shape = new Reinforcement.PtcShapeType(
start: new Reinforcement.PtcShapeStart(0.0, 0.0),
intermediates: new List <Reinforcement.PtcShapeInner>()
{
new Reinforcement.PtcShapeInner(0.4, -0.20, 0.0, 0.1),
new Reinforcement.PtcShapeInner(0.6, -0.20, 0.0),
},
end: new Reinforcement.PtcShapeEnd(0.0, 0.0, 0.9)
);
var losses = new Reinforcement.PtcLosses(
curvatureCoefficient: 0.05,
wobbleCoefficient: 0.007,
anchorageSetSlip: 0.0,
elasticShortening: 0.0,
creepStress: 0.0,
shrinkageStress: 0.0,
relaxationStress: 0.0);
var manufacturing = new Reinforcement.PtcManufacturingType(
positions: new List <double>()
{
0.3, 0.7
},
shiftX: 0.0,
shiftZ: 0.1);
var strandData = new Reinforcement.PtcStrandLibType(
name: "Custom ptc material",
f_pk: 1860.0,
a_p: 150.0,
e_p: 195000.0,
rho: 7.810,
relaxationClass: 2,
rho_1000: 0.1);
var ptc = new Reinforcement.Ptc(
bar,
shape,
losses,
manufacturing,
strandData,
jackingSide: Reinforcement.JackingSide.Start,
jackingStress: 1000.0,
numberOfStrands: 3,
identifier: "PTC");
var elements = new List <GenericClasses.IStructureElement>()
{
bar,
ptc
};
// CREATE AND OPEN MODEL
Model model = new Model(Country.S, elements);
string path = "output/post_tensioned_cable.struxml";
if (!Directory.Exists("output"))
{
Directory.CreateDirectory("output");
}
model.SerializeModel(path);
var app = new Calculate.Application();
app.OpenStruxml(Path.GetFullPath(path), false);
}
static void Main()
{
// EXAMPLE 1: CREATING A SIMPLE BEAM
// This example will show you how to model a simple supported beam,
// and how to save it for export to FEM-Design.Before running,
// make sure you have a window with FEM-Design open.
// This example was last updated 2022-04-27, using the ver. 21.1.0 FEM-Design API.
// Define geometry
var p1 = new Geometry.FdPoint3d(2.0, 2.0, 0);
var p2 = new Geometry.FdPoint3d(10, 2.0, 0);
var mid = p1 + (p2 - p1) * 0.5;
// Create elements
var edge = new Geometry.Edge(p1, p2, Geometry.FdVector3d.UnitZ());
Materials.MaterialDatabase materialsDB = Materials.MaterialDatabase.DeserializeStruxml("materials.struxml");
Sections.SectionDatabase sectionsDB = Sections.SectionDatabase.DeserializeStruxml("sections.struxml");
var material = materialsDB.MaterialByName("C35/45");
var section = sectionsDB.SectionByName("Concrete sections, Rectangle, 300x900");
var bar = new Bars.Bar(
edge,
Bars.BarType.Beam,
material,
sections: new Sections.Section[] { section },
connectivities: new Bars.Connectivity[] { Bars.Connectivity.GetRigid() },
eccentricities: new Bars.Eccentricity[] { Bars.Eccentricity.GetDefault() },
identifier: "B");
bar.BarPart.LocalY = Geometry.FdVector3d.UnitY();
var elements = new List <GenericClasses.IStructureElement>()
{
bar
};
// Create supports
var s1 = new Supports.PointSupport(
point: p1,
motions: Releases.Motions.RigidPoint(),
rotations: Releases.Rotations.Free()
);
var s2 = new Supports.PointSupport(
point: p2,
motions: new Releases.Motions(yNeg: 1e10, yPos: 1e10, zNeg: 1e10, zPos: 1e10),
rotations: Releases.Rotations.Free()
);
var supports = new List <GenericClasses.ISupportElement>()
{
s1, s2
};
// Create load cases
var deadload = new Loads.LoadCase("Deadload", Loads.LoadCaseType.DeadLoad, Loads.LoadCaseDuration.Permanent);
var liveload = new Loads.LoadCase("Liveload", Loads.LoadCaseType.Static, Loads.LoadCaseDuration.Permanent);
var loadcases = new List <Loads.LoadCase>()
{
deadload, liveload
};
// Create load combinations
var slsFactors = new List <double>()
{
1.0, 1.0
};
var SLS = new Loads.LoadCombination("SLS", Loads.LoadCombType.ServiceabilityCharacteristic, loadcases, slsFactors);
var ulsFactors = new List <double>()
{
1.35, 1.5
};
var ULS = new Loads.LoadCombination("ULS", Loads.LoadCombType.UltimateOrdinary, loadcases, ulsFactors);
var loadCombinations = new List <Loads.LoadCombination>()
{
SLS, ULS
};
// Create loads
var pointForce = new Loads.PointLoad(mid, new Geometry.FdVector3d(0.0, 0.0, -5.0), liveload, null, Loads.ForceLoadType.Force);
var pointMoment = new Loads.PointLoad(p2, new Geometry.FdVector3d(0.0, 5.0, 0.0), liveload, null, Loads.ForceLoadType.Moment);
var lineLoadStart = new Geometry.FdVector3d(0.0, 0.0, -2.0);
var lineLoadEnd = new Geometry.FdVector3d(0.0, 0.0, -4.0);
var lineLoad = new Loads.LineLoad(edge, lineLoadStart, lineLoadEnd, liveload, Loads.ForceLoadType.Force, "", constLoadDir: true, loadProjection: true);
var loads = new List <GenericClasses.ILoadElement>()
{
pointForce,
pointMoment,
lineLoad
};
// Add to model
Model model = new Model(Country.S);
model.AddElements(elements);
model.AddSupports(supports);
model.AddLoadCases(loadcases);
model.AddLoadCombinations(loadCombinations);
model.AddLoads(loads);
// Save model then open in FEM-Design
string path = System.IO.Path.GetFullPath("simple_model.struxml");
model.SerializeModel(path);
var app = new Calculate.Application();
app.OpenStruxml(path, true);
}