box_girder_section

sectionproperties.pre.library.steel_sections.box_girder_section(d: float, b_t: float, b_b: float, t_ft: float, t_fb: float, t_w: float, material: Material = Material(name='default', elastic_modulus=1, poissons_ratio=0, yield_strength=1, density=1, color='w')) → Geometry

Constructs a box girder section.

Constructs a box girder section centered at at (max(b_t, b_b)/2, d/2), with depth d, top width b_t, bottom width b_b, top flange thickness t_ft, bottom flange thickness t_fb and web thickness t_w.

Parameters:

• d (float) – Depth of the box girder section

• b_t (float) – Top width of the box girder section

• b_b (float) – Bottom width of the box girder section

• t_ft (float) – Top flange thickness of the box girder section

• t_fb (float) – Bottom flange thickness of the box girder section

• t_w (float) – Web thickness of the box girder section

• material (Material) – Material to associate with this geometry

Returns:

Box girder section geometry

Return type:

Geometry

Example

The following example creates a box girder section with a depth of 1200 mm, a top width of 1200 mm, a bottom width of 400 mm, a top flange thickness of 100 mm, a bottom flange thickness of 80 mm and a web thickness of 50 mm:

from sectionproperties.pre.library import box_girder_section

box_girder_section(
    d=1200, b_t=1200, b_b=400, t_ft=100, t_fb=80, t_w=50
).plot_geometry()

(Source code, png, hires.png, pdf)

Box girder section geometry