Support flexibility — where it appears
Named by 2 essays across 2 fields — each of them below, with the objects they name alongside it.
The floor is a beam lying down
A floor plate spans horizontally between the walls that resist a lateral load, carries a distributed inertia load, and has chords, a web and a span-to-depth ratio like any other beam. Its stiffness decides whether the walls share the load by their stiffness or by the area of floor nearest them — and the familiar tributary answer turns out to be neither limit.
The deflection that belongs to the support
A beam calculation answers a question about a beam sitting on things that do not move. Real ones sit on bearings, on other beams and on columns that shorten, and every one of those is a spring in series with the member — so a deflection is the sum of two things and only one of them is a property of the beam.
Named alongside it
The objects these essays reach for when they reach for this one.
Load sharingAccidental eccentricityAxial shorteningBearingCentre of rigidityChord forceCollectorDeep beamDeflectionDiaphragmDifferential shorteningElastic foundation