Concept
Deflection — where it appears
2 essays name this object, across 2 fields. What follows is each of them, and the objects they name alongside it.
The deflection that arrives three years late
A concrete beam that passes every check on the day it is built goes on deflecting for a decade, and ends up three times where it started. Nothing about the load changed, and nothing about the strength was ever in question.
The redistribution nobody chose
A beam designed as simply supported, on connections that are not pins, has end moments the analysis never predicted and a mid-span moment smaller than it was sized for. Usually that is safe. It is never intentional, and there is one direction in which it is not safe at all.
Named alongside it
The objects these essays reach for when they reach for this one.
ServiceabilityBeam columnClassificationConnectionCracked sectionCreepEffective modulusElastic modulusJoint stiffnessModular ratioMoment redistributionSemi rigid