simdesign.rcmrf.bdim.eu_cdl.loads

This module provides the class implementations representing loads for the eu_cdl design class in the BDIM layer.

class simdesign.rcmrf.bdim.eu_cdl.loads.Variable(*, floor, roof, staircase)[source]

Bases: VariableBase

Variable load (Q) model implementation for the eu_cdl design class.

This class directly uses the behaviour defined in VariableBase.

See also

VariableBase: Base class defining the core behaviour and configuration.

Parameters:

floor (float)
roof (float)
staircase (float)

class simdesign.rcmrf.bdim.eu_cdl.loads.Permanent(*, floor, roof, staircase, gamma_rc)[source]

Bases: PermanentBase

Permanent load (G) model implementation for the eu_cdl design class.

This class directly uses the behaviour defined in PermanentBase.

See also

PermanentBase: Base class defining the core behaviour and configuration.

Parameters:

floor (float)
roof (float)
staircase (float)
gamma_rc (float)

class simdesign.rcmrf.bdim.eu_cdl.loads.Combination(*, tag, loads, masses=None)[source]

Bases: CombinationBase

Load combination model implementation for the eu_cdl design class.

This class directly uses the behaviour defined in CombinationBase.

See also

CombinationBase: Base class defining the core behaviour and configuration.

Parameters:

tag (str)
loads (Dict[Literal['G', 'Q', 'E+X', 'E-X', 'E+Y', 'E-Y'], float])
masses (Dict[Literal['G', 'Q'], float] | None)

class simdesign.rcmrf.bdim.eu_cdl.loads.LoadsData(*, variable, permanent, combinations, eccentricity=0.0)[source]

Bases: LoadsDataBase

Loads data model implementation for the eu_cdl design class.

This class extends LoadsDataBase by narrowing the attribute types.

Parameters:

variable (Variable)
permanent (Permanent)
combinations (List[Combination])
eccentricity (float)

variable

Object representing variable (live) loads.

Type:: Variable

permanent

Object representing permanent (dead) loads.

Type:: Permanent

combinations

List of load combination objects.

Type:: List[Combination]

See also

LoadsDataBase: Base class defining the core behaviour and configuration.

class simdesign.rcmrf.bdim.eu_cdl.loads.Loads[source]

Bases: LoadsBase

Loads implementation for the eu_cdl design class.

This class extends LoadsBase by narrowing the attribute types and overriding get_seismic_loads() to use uniform weight distribution.

variable

Object representing variable (live) loads.

Type:: Variable

permanent

Object representing permanent (dead) loads.

Type:: Permanent

combinations

List of load combinations.

Type:: List[Combination]

_data_path

Path to the file containing loads data.

Type:: Path

See also

LoadsBase: Base class defining the core behaviour and configuration.

get_seismic_loads(**kwargs)[source]

Calculate and return seismic loads.

Unlike get_seismic_loads(), this implementation distributes forces proportionally to storey weight alone, without height weighting. The heights are only used to leave out the weights lumped at the base (heights <= 0), which receive no force and do not contribute to the base shear.

Parameters:

**kwargs (dict[float | np.ndarray]) –

Keyword arguments consumed by this method:

betafloat: Design lateral load factor expressed as a fraction of building weight.
weightsnp.ndarray: Array of storey weights in kN.
heightsnp.ndarray, optional: Array of heights measured from the base, with the same shape as weights. If not given, all weights are used.

Returns:

Total base shear force (kN) and seismic forces acting at each storey (kN), distributed proportionally to storey weight. The forces array has the same shape as weights.

Return type:

Tuple[np.float64, np.ndarray]

Notes

**kwargs are used instead of explicit keyword arguments in order to satisfy the interface expected by run_seismic_load_cases().