anaStruct 2D Frames and Trusses

Analyse 2D Frames and trusses for slender structures. Determine the bending moments, shear forces, axial forces and displacements.

Installation

For the actively developed version:

$ pip install git+https://github.com/ritchie46/anaStruct.git

Or for a release:

$ pip install anastruct

Documentation

Real world use case!

Non linear water accumulation analysis

Simple examples.

code examples!

Reference guide

reference

2D FEM Frames and Trusses

Development version

• trusses ✔️
• beams ✔️
• moment lines ✔️
• axial force lines ✔️
• shear force lines ✔️
• displacement lines ✔️
• hinged supports ✔️
• fixed supports ✔️
• spring supports ✔️
• q-load in elements direction ✔️
• point loads in global x, y directions on nodes ✔️
• dead load ✔️
• q-loads in global y direction ✔️
• hinged elements ✔️
• rotational springs ✔️
• non-linear nodes ✔️
• geometrical non linearity ✖️

from anastruct.fem.system import SystemElements

ss = SystemElements(EA=15000, EI=5000)

# Add beams to the system.
ss.add_element(location=[[0, 0], [0, 5]])
ss.add_element(location=[[0, 5], [5, 5]])
ss.add_element(location=[[5, 5], [5, 0]])

# Add a fixed support at node 1.
ss.add_support_fixed(node_id=1)

# Add a rotational spring support at node 4.
ss.add_support_spring(node_id=4, translation=3, k=4000)

# Add loads.
ss.point_load(Fx=30, node_id=2)
ss.q_load(q=-10, element_id=2)

# Solve
ss.solve()

# Get visual results.
ss.show_structure()
ss.show_reaction_force()
ss.show_axial_force()
ss.show_shear_force()
ss.show_bending_moment()
ss.show_displacement()