Exercise 4 · statics of a pin-jointed lattice

The bridge

The mission

Before you compute

Configure

Design

Press Build above the site to lay out the lattice: add joints, join them with bars, and put supports where the ground can take a reaction.

Conditions

Advancedpresentation

There is no mesh size here, no tolerance and no iteration count, so there is no convergence study either. A pin-jointed lattice is its own discretisation: one element per bar, solved once. The only setting left is how wide the bars are drawn.

Checking what this server can do…

Why it happens

Kept runs

Understand the model

Everything the exercise rests on, in the order it matters. Nothing here has been shortened — it has been moved out of the way of the experiment.

For teachers

Note. These models are for exploring ideas and comparing designs. They are not professional engineering tools.