Concept
Axle train
2 essays name this object, across one field. What follows is each of them, and the objects they name alongside it.
Also named here as moving load — the same set of essays touches all of them, so they are one junction rather than several.
The worst place to stand
A bridge is not designed for a load. It is designed for a load that moves, and for every station along it there is a different position of that load that does the most damage.
The train that is worse than its heaviest axle
An influence line says where to stand one load. A vehicle is several loads at fixed spacings, and the worst arrangement never puts the heaviest one at the peak.
Named alongside it
The objects these essays reach for when they reach for this one.
Influence lineMoment envelopeMoving loadPattern loadingBarre ruleBending momentMoment diagramResultant