Structural Engineering & Statics
where the load goes
Concept

Series stiffness — where it appears

2 essays name this object, across 2 fields. What follows is each of them, and the objects they name alongside it.
flexibility contributed by each componentthey add, so the softest dominates — Sj = 25227.71 kN·m/radwhat doubling it buyscolumn web in shear21.89%×1.12column web in compression11.55%×1.06column flange in bending39.62%×1.25end plate in bending18.09%×1.1bolts in tension8.85%×1.05

A joint made of springs in series

A connection's stiffness is not a property of the connection. It is the series combination of the flexibilities of everything the force passes through — so the softest component decides, and stiffening any of the others changes almost nothing.

connections · component method 4020080030002000000.20.40.60.81stiffness of each supportfraction of the deflection that is bendingrigid supportsare over here1%the beam drawn

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.

deflection · support flexibility

Named alongside it

The objects these essays reach for when they reach for this one.

Axial shorteningBearingColumn webComponent methodConnectionDeflectionDifferential shorteningElastic foundationIndeterminacyJoint stiffnessLever armLoad sharing

All concepts