A cantilever is a structural element that extends beyond its support and carries loads through bending action.
Category: Analysis
While strength protects against structural failure, stability prevents loss of equilibrium, and serviceability ensures satisfactory performance during normal use.
This article explains how portal frame stability is governed by sway and second-order effects, and how Eurocode 3 (EN 1993-1-1) treats these phenomena through its stability rules.
Understanding the mechanics behind soft-storey collapse is therefore essential because the problem is fundamentally behavioural rather than simply dimensional.
beam is generally considered deep when its span-to-depth ratio becomes sufficiently small such that strain distribution across the depth is no longer linear.
Under load reversal, stress pattern changes. A region previously subjected to compression may suddenly experience tension.
Long-span floors are inherently more sensitive to vibration because increasing span length generally reduces structural stiffness. As spans become larger, deflections increase and natural frequencies decrease.
Support conditions play a central role in determining how forces are distributed within a structure.
Buildings are never completely still. They move continuously due to loads, temperature changes, soil conditions, and time. These movements are natural and expected in structural systems.
The response of a structure under dynamic conditions is influenced by mass, stiffness, damping, and the characteristics of the applied load.