pycba.load#

PyCBA - Load module

The load matrix is a List[List] of load descriptors. Each entry describes one load; the number of columns varies by load type:

Type	Name	Format	Cols
1	UDL	`[span, 1, w]`	3
2	Point Load	`[span, 2, P, a]`	4
3	Partial UDL	`[span, 3, w, a, c]`	5
4	Moment Load	`[span, 4, M, a]`	4
5	Trapezoidal (full)	`[span, 5, w1, w2]`	4
5	Trapezoidal (partial)	`[span, 5, w1, w2, a, c]`	6
6	Imposed curvature	`[span, 6, k0, k1, ...]`	3+

Load type 6 (imposed curvature) carries the coefficients of the free (initial-strain) curvature polynomial kappa(x) = k0 + k1*x + ... and is used to apply creep, shrinkage or thermal curvatures; see LoadIC.

The type alias LoadMatrix is defined as

LoadMatrix#: alias of List[List[int | float]]

Functions

`add_LM`	Adds two load matrices and returns the sum; this enables superposition
`factor_LM`	Applies a factor to the loads in a LoadMatrix object
`parse_LM`	This function parses the Load Matrix and returns a list of Load objects

Classes

`Load`	Beam load container and processor
`LoadIC`	Imposed-curvature (initial-strain) member load.
`LoadML`	Moment load applied at a along member
`LoadMaMb`	Member end moment loads
`LoadPL`	Point Load class: CNLs and member results
`LoadPUDL`	Concrete class for Partial UDLs
`LoadTrapez`	Trapezoidal (linearly varying) distributed load, optionally partial.
`LoadUDL`	Uniformly Distributed Load: CNLs and member results