Technical review and standards — The Chartership Forum

What has been checked

The lesson review covers the explanations, worked steps, exercises and feedback. Selected results have also been recalculated separately, including all 40 numeric practice answers in the first three Structural Analysis modules. The calculation suite includes regression checks for footing punching, composite construction stages, steel connections, foundation settlement, moving loads, modal stability and other defects found during review.

Editorial review and numerical checks do not establish design compliance. The lesson notes identify the assumptions, standards and calculations that still need independent engineering review.

Figures and interactive models

The latest pass checked all 40 authored lesson figures and exercised the controls for all 192 distinct laboratory models. Corrections include force directions, elastic curves, stress and strain scales, reinforcement geometry, moving-load peaks and unsupported input handling. Figures remain vector drawings; wider diagrams can be scrolled locally on a phone and enlarged where the browser supports it.

Control checks cover default settings and individual slider limits, plus visible choices. They do not exhaust every possible combination of inputs or establish suitability for a real structure. The separate bridge workspace and supplemental reference material have not received the same complete visual review.

Lesson-by-lesson review

401 of 401 course lessons and bridge component studies have received a full-context editorial review in the current pass. The register distinguishes that work from engineering sign-off, which remains open. Supplemental assessments, tutorials, reference tables and the bridge workspace also need further review.

Computational Engineering · 64/64 editorial reviews

The computer as engineering assistant — editorial review completed; expert verification open
Choosing the method — editorial review completed; expert verification open
Responsibility for the output — editorial review completed; expert verification open
Design is an under-defined problem — editorial review completed; expert verification open
Structural form and efficiency — editorial review completed; expert verification open
What a parameter is — editorial review completed; expert verification open
Parametric structures — editorial review completed; expert verification open
The vocabulary, and what each idea buys — editorial review completed; expert verification open
Should this be automated? — editorial review completed; expert verification open
Spreadsheet safety — editorial review completed; expert verification open
The chain of handovers — editorial review completed; expert verification open
Loud and silent losses — editorial review completed; expert verification open
Versions, naming and the handover note — editorial review completed; expert verification open
What abstraction discards — editorial review completed; expert verification open
Choosing the level — editorial review completed; expert verification open
The model-purpose statement — editorial review completed; expert verification open
Freedoms and families — editorial review completed; expert verification open
Restraints and releases — editorial review completed; expert verification open
Offsets and eccentricity — editorial review completed; expert verification open
Trusses and frames — editorial review completed; expert verification open
Floors and cores — editorial review completed; expert verification open
The validation calculation — editorial review completed; expert verification open
The element and its transformation — editorial review completed; expert verification open
Assembly and boundary conditions — editorial review completed; expert verification open
Solving, and recovering what you actually wanted — editorial review completed; expert verification open
Geometric stiffness: why load changes stiffness — editorial review completed; expert verification open
Buckling as an eigenvalue problem — editorial review completed; expert verification open
What these analyses need from the model — editorial review completed; expert verification open
Three kinds of nonlinearity — editorial review completed; expert verification open
Newton–Raphson and the residual — editorial review completed; expert verification open
Equilibrium paths and limit points — editorial review completed; expert verification open
The checks that come first — editorial review completed; expert verification open
Units, signs and magnitude — editorial review completed; expert verification open
Restraints, releases and connectivity — editorial review completed; expert verification open
Conditioning and meshing — editorial review completed; expert verification open
The Model Doctor — editorial review completed; expert verification open
Two different questions — editorial review completed; expert verification open
Predict before you analyse — editorial review completed; expert verification open
The three-stage check — editorial review completed; expert verification open
The model record — editorial review completed; expert verification open
What the answer depends on — editorial review completed; expert verification open
Bracketing and its limits — editorial review completed; expert verification open
Posing the problem — editorial review completed; expert verification open
Comparing layouts before sizing — editorial review completed; expert verification open
Shape, size and form — editorial review completed; expert verification open
The design space — editorial review completed; expert verification open
Deterministic and stochastic methods — editorial review completed; expert verification open
No free lunch, and knowing when to stop — editorial review completed; expert verification open
Domination and the front — editorial review completed; expert verification open
What a weighted sum cannot see — editorial review completed; expert verification open
Choosing, and recording why — editorial review completed; expert verification open
What it is actually doing — editorial review completed; expert verification open
Overfitting and generalisation — editorial review completed; expert verification open
Bias, and what the model never saw — editorial review completed; expert verification open
Surrogates, and who is accountable — editorial review completed; expert verification open
From model to machine — editorial review completed; expert verification open
Computation somewhere else — editorial review completed; expert verification open
Quantum computing, briefly and sceptically — editorial review completed; expert verification open
Where the carbon is, and when it is decided — editorial review completed; expert verification open
What actually moves the number — editorial review completed; expert verification open
Does the ranking survive? — editorial review completed; expert verification open
The sequence — editorial review completed; expert verification open
A project carried through — editorial review completed; expert verification open
Judgement, and what remains — editorial review completed; expert verification open

Foundation Engineering · 36/36 editorial reviews

Two requirements, not one — editorial review completed; expert verification open
Gross, net and effective pressure — editorial review completed; expert verification open
How deep does a foundation reach? — editorial review completed; expert verification open
Shallow, deep, or improve the ground — editorial review completed; expert verification open
Three ways to fail — editorial review completed; expert verification open
The mechanism beneath the footing — editorial review completed; expert verification open
Three terms, three sources of strength — editorial review completed; expert verification open
The factor nobody agrees on — editorial review completed; expert verification open
Shape and depth — editorial review completed; expert verification open
Inclined loads — editorial review completed; expert verification open
The effective area method — editorial review completed; expert verification open
Combined V, H and M — editorial review completed; expert verification open
Water — editorial review completed; expert verification open
Layered ground — editorial review completed; expert verification open
From blow count to bearing pressure — editorial review completed; expert verification open
CPT and plate tests — editorial review completed; expert verification open
The elastic calculation — editorial review completed; expert verification open
Which stiffness? — editorial review completed; expert verification open
How much, and how fast — editorial review completed; expert verification open
Differential movement — editorial review completed; expert verification open
When a raft, and the compensated raft — editorial review completed; expert verification open
Stiffness, and the piled raft — editorial review completed; expert verification open
When piles — editorial review completed; expert verification open
Kinds of pile — editorial review completed; expert verification open
The two resistances — editorial review completed; expert verification open
Mobilisation — editorial review completed; expert verification open
Adhesion, not cohesion — editorial review completed; expert verification open
How much α matters — editorial review completed; expert verification open
The β-method — editorial review completed; expert verification open
The two limits — editorial review completed; expert verification open
From field data to pile capacity — editorial review completed; expert verification open
Drilled shafts — editorial review completed; expert verification open
Group capacity — editorial review completed; expert verification open
Settlement and downdrag — editorial review completed; expert verification open
Rigid or flexible — editorial review completed; expert verification open
Capacity and deflection — editorial review completed; expert verification open

Reinforced Concrete Design · 41/41 editorial reviews

Why concrete needs reinforcement — editorial review completed; expert verification open
Bond, cracking and what changes at first crack — editorial review completed; expert verification open
Load paths, member types and how a concrete frame works — editorial review completed; expert verification open
Four properties that get confused — editorial review completed; expert verification open
Design under uncertainty — editorial review completed; expert verification open
Actions, and getting the classification right — editorial review completed; expert verification open
Combinations of actions — editorial review completed; expert verification open
Idealisation, spans and load patterns — editorial review completed; expert verification open
Moment redistribution — editorial review completed; expert verification open
How a section behaves, from zero load to failure — editorial review completed; expert verification open
Deriving the moment of resistance — editorial review completed; expert verification open
Designing a section, and making the bars fit — editorial review completed; expert verification open
Compression steel and flanged sections — editorial review completed; expert verification open
Why shear is the dangerous one — editorial review completed; expert verification open
The variable-angle truss — editorial review completed; expert verification open
Bond, anchorage and laps — editorial review completed; expert verification open
Torsion — editorial review completed; expert verification open
The cracked elastic section — editorial review completed; expert verification open
Crack width and deflection — editorial review completed; expert verification open
Bar arrangement and effective depth — editorial review completed; expert verification open
Crack control, cover and congestion — editorial review completed; expert verification open
Sizing, and the order of the checks — editorial review completed; expert verification open
A complete beam design — editorial review completed; expert verification open
One-way and two-way action — editorial review completed; expert verification open
Flat slabs, punching shear and yield lines — editorial review completed; expert verification open
Axial load and moment together — editorial review completed; expert verification open
Slenderness and second-order effects — editorial review completed; expert verification open
Pad footings — editorial review completed; expert verification open
Eccentric loads and pile caps — editorial review completed; expert verification open
Earth pressure — editorial review completed; expert verification open
Stability, and designing the wall — editorial review completed; expert verification open
The idea, and the two stages — editorial review completed; expert verification open
Losses, and load balancing — editorial review completed; expert verification open
Cracking before the tank is filled — editorial review completed; expert verification open
Joints, limits, and what actually works — editorial review completed; expert verification open
Composite action and the connection — editorial review completed; expert verification open
Partial connection, and the construction stage — editorial review completed; expert verification open
The load path, end to end — editorial review completed; expert verification open
Every check, and the one that governs — editorial review completed; expert verification open
Checking is not repeating — editorial review completed; expert verification open
Assurance, and what a design does not know — editorial review completed; expert verification open

Soil Mechanics · 45/45 editorial reviews

Soil as an engineering material — editorial review completed; expert verification open
What geotechnical engineering does — editorial review completed; expert verification open
What ground information does a project need? — editorial review completed; expert verification open
How soils form — editorial review completed; expert verification open
Clay minerals and why they matter — editorial review completed; expert verification open
Soil fabric and structure — editorial review completed; expert verification open
Why investigate, and the desk study — editorial review completed; expert verification open
Methods, sampling and groundwater — editorial review completed; expert verification open
Building and using the ground profile — editorial review completed; expert verification open
Particle sizes and soil description — editorial review completed; expert verification open
Grading curves, D-values and coefficients — editorial review completed; expert verification open
Plasticity, classification and its limits — editorial review completed; expert verification open
The three-phase model — editorial review completed; expert verification open
The Se = wGs identity and unit weights — editorial review completed; expert verification open
Consistency limits and soil state — editorial review completed; expert verification open
What compaction does — editorial review completed; expert verification open
The compaction curve and the zero-air-voids line — editorial review completed; expert verification open
Compaction in the field — editorial review completed; expert verification open
Heads and hydraulic gradient — editorial review completed; expert verification open
Darcy's law and seepage velocity — editorial review completed; expert verification open
Layered soils and permeability tests — editorial review completed; expert verification open
Total stress, porewater pressure and effective stress — editorial review completed; expert verification open
Stress profiles with a water table and a surface load — editorial review completed; expert verification open
Seepage, the seepage force and the quick condition — editorial review completed; expert verification open
Representing a stress state — editorial review completed; expert verification open
Stress paths — editorial review completed; expert verification open
Why the path matters — editorial review completed; expert verification open
Why saturated clay settles slowly — editorial review completed; expert verification open
How much: the e–log σ′ idealisation — editorial review completed; expert verification open
How fast: the time factor and degree of consolidation — editorial review completed; expert verification open
What gives soil its strength — editorial review completed; expert verification open
The Mohr–Coulomb criterion — editorial review completed; expert verification open
Drained and undrained strength — editorial review completed; expert verification open
What a test must reproduce — editorial review completed; expert verification open
Consolidation and permeability tests — editorial review completed; expert verification open
Strength tests — editorial review completed; expert verification open
The critical state — editorial review completed; expert verification open
Wet and dry of critical — editorial review completed; expert verification open
One framework — editorial review completed; expert verification open
Flow lines and equipotentials — editorial review completed; expert verification open
Using a flow net — editorial review completed; expert verification open
Exit gradient, piping and heave — editorial review completed; expert verification open
A framework for any ground — editorial review completed; expert verification open
Worked interpretations — editorial review completed; expert verification open
What governs, and what is missing — editorial review completed; expert verification open

Structural Steel Design · 40/40 editorial reviews

What steel does when you load it — editorial review completed; expert verification open
Residual stress, thickness and toughness — editorial review completed; expert verification open
Combinations, and the case where load helps you — editorial review completed; expert verification open
The actions that catch steel out — editorial review completed; expert verification open
From building to model — editorial review completed; expert verification open
Joints are never pinned or rigid — editorial review completed; expert verification open
Second-order effects, from first principles — editorial review completed; expert verification open
Where every stability effect belongs — editorial review completed; expert verification open
Why a plate buckles before the steel yields — editorial review completed; expert verification open
The four classes, and what a section is allowed to do — editorial review completed; expert verification open
Tension, compression, and the holes you drilled — editorial review completed; expert verification open
Bending, shear, and what happens when they combine — editorial review completed; expert verification open
From Euler to a design resistance — editorial review completed; expert verification open
Buckling length, axis, and what restraint buys — editorial review completed; expert verification open
Why a beam fails sideways — editorial review completed; expert verification open
Restraint, moment shape, and where the load sits — editorial review completed; expert verification open
Why N and M do not simply add — editorial review completed; expert verification open
Frame stability, and which moments get amplified — editorial review completed; expert verification open
The girder, and the web it can afford — editorial review completed; expert verification open
Stiffeners, local effects, and members made of members — editorial review completed; expert verification open
How composite action works, and what it buys — editorial review completed; expert verification open
The construction stage, and why deflection needs three calculations — editorial review completed; expert verification open
Bolts: several resistances, not one — editorial review completed; expert verification open
Preloaded bolts, welds, and what detailing protects — editorial review completed; expert verification open
The T-stub, and the three ways it fails — editorial review completed; expert verification open
The component method: weakest, softest, and why they differ — editorial review completed; expert verification open
The base plate, and the concrete under it — editorial review completed; expert verification open
Tension, shear, and how fixed a base really is — editorial review completed; expert verification open
Collapse mechanisms, and the haunch — editorial review completed; expert verification open
Rafter stability, and why every portal has stays — editorial review completed; expert verification open
Floor systems, and the multiplication — editorial review completed; expert verification open
Lateral stability: comparing four systems — editorial review completed; expert verification open
Moving loads: a member with no critical section — editorial review completed; expert verification open
Fatigue: the limit state that sizes the girder — editorial review completed; expert verification open
Execution: what the drawing actually asks for — editorial review completed; expert verification open
Durability and erection: the two limit states nobody analyses — editorial review completed; expert verification open
What governs where — editorial review completed; expert verification open
Decisions, reach, and the record — editorial review completed; expert verification open
How to find an error — editorial review completed; expert verification open
What this course does not know — editorial review completed; expert verification open

Structural Analysis Fundamentals · 72/72 editorial reviews

What a structure has to do — editorial review completed; expert verification open
From a real structure to a model — editorial review completed; expert verification open
Forces and resolving them — editorial review completed; expert verification open
Moments, couples and equilibrium — editorial review completed; expert verification open
Supports and free-body diagrams — editorial review completed; expert verification open
Finding the reactions — editorial review completed; expert verification open
Cutting the member open — editorial review completed; expert verification open
Sign conventions, sagging and hogging — editorial review completed; expert verification open
Building the diagrams — editorial review completed; expert verification open
Relationships, overhangs and contraflexure — editorial review completed; expert verification open
Assumptions and determinacy — editorial review completed; expert verification open
Method of joints and method of sections — editorial review completed; expert verification open
Trusses as beams, tension coefficients and space frames — editorial review completed; expert verification open
Cables carrying point loads — editorial review completed; expert verification open
Distributed loads: parabola and catenary — editorial review completed; expert verification open
The cable–arch analogy — editorial review completed; expert verification open
The three-pinned arch — editorial review completed; expert verification open
Stress and strain — editorial review completed; expert verification open
Hooke's law, stiffness and strength — editorial review completed; expert verification open
Shear strain and the Poisson effect — editorial review completed; expert verification open
Pressure vessels and shared load paths — editorial review completed; expert verification open
The tensile test and the stress–strain curve — editorial review completed; expert verification open
Elastic constants and how they connect — editorial review completed; expert verification open
Time and repetition: creep, relaxation and fatigue — editorial review completed; expert verification open
Temperature, restraint and impact — editorial review completed; expert verification open
Why bending causes stress — editorial review completed; expert verification open
Deriving the bending formula — editorial review completed; expert verification open
Second moment of area and section modulus — editorial review completed; expert verification open
Combined bending and axial load — editorial review completed; expert verification open
Plastic bending and the plastic hinge — editorial review completed; expert verification open
Unsymmetrical bending and principal axes — editorial review completed; expert verification open
Why horizontal shear stress exists — editorial review completed; expert verification open
Deriving τ = VQ/It — editorial review completed; expert verification open
Shear in unsymmetrical sections and the shear centre — editorial review completed; expert verification open
Deriving the torsion formula — editorial review completed; expert verification open
Thin-walled and open sections — editorial review completed; expert verification open
Torque diagrams and plastic torsion — editorial review completed; expert verification open
Non-circular sections, warping and the cost of a slit — editorial review completed; expert verification open
Strain compatibility and the transformed section — editorial review completed; expert verification open
Reinforced concrete sections — editorial review completed; expert verification open
Steel and concrete composite beams — editorial review completed; expert verification open
Deriving the beam deflection equation — editorial review completed; expert verification open
Curvature and deflected shapes — editorial review completed; expert verification open
Standard cases and serviceability — editorial review completed; expert verification open
Euler–Bernoulli and Timoshenko — editorial review completed; expert verification open
Macaulay's method and moment–area — editorial review completed; expert verification open
Deflection under unsymmetrical bending, and deflection due to shear — editorial review completed; expert verification open
Stress on an inclined plane — editorial review completed; expert verification open
Principal stresses and Mohr's circle — editorial review completed; expert verification open
Strain gauges and yield criteria — editorial review completed; expert verification open
Stress trajectories — editorial review completed; expert verification open
Strain transformation and Mohr's circle of strain — editorial review completed; expert verification open
Work, strain energy and the missing half — editorial review completed; expert verification open
Virtual work and the unit-load method — editorial review completed; expert verification open
Unit load for beams, and reciprocal theorems — editorial review completed; expert verification open
Strain energy in shear and torsion — editorial review completed; expert verification open
Castigliano's theorems — editorial review completed; expert verification open
Indeterminacy, compatibility and the force method — editorial review completed; expert verification open
Fixed-ended beams and fixed-end moments — editorial review completed; expert verification open
The slope-deflection method — editorial review completed; expert verification open
Moment distribution and the matrix stiffness method — editorial review completed; expert verification open
Kinematic indeterminacy and indeterminate trusses — editorial review completed; expert verification open
Portal frames, braced beams and two-pinned arches — editorial review completed; expert verification open
What an influence line actually is — editorial review completed; expert verification open
Shear, moment and the Müller-Breslau principle — editorial review completed; expert verification open
Moving loads and load trains — editorial review completed; expert verification open
Influence lines for trusses and indirect loading — editorial review completed; expert verification open
Deriving the Euler buckling load — editorial review completed; expert verification open
Strength versus stability — editorial review completed; expert verification open
Effective length, slenderness and the limits — editorial review completed; expert verification open
Real columns, and buckling by energy — editorial review completed; expert verification open
Beam-columns: bending and buckling together — editorial review completed; expert verification open

Structural Behaviour · 18/18 editorial reviews

Structural behaviour as a visual language — editorial review completed; expert verification open
Equilibrium, reactions and load paths — editorial review completed; expert verification open
Stability, mechanisms and determinacy — editorial review completed; expert verification open
Stiffness, continuity and compatibility — editorial review completed; expert verification open
Qualitative behaviour of beams — editorial review completed; expert verification open
Continuous beams and support changes — editorial review completed; expert verification open
Qualitative behaviour of frames — editorial review completed; expert verification open
Trusses, arches, cables and structural forms — editorial review completed; expert verification open
Three-dimensional behaviour and grids — editorial review completed; expert verification open
Virtual work and deformation — editorial review completed; expert verification open
The flexibility method — editorial review completed; expert verification open
The stiffness method — editorial review completed; expert verification open
Moment distribution — editorial review completed; expert verification open
Plastic behaviour and collapse — editorial review completed; expert verification open
Slab behaviour and yield-line thinking — editorial review completed; expert verification open
Influence lines and moving loads — editorial review completed; expert verification open
Structural modelling and software checking — editorial review completed; expert verification open
Integrated structural judgement — editorial review completed; expert verification open

Structural Dynamics · 38/38 editorial reviews

What makes a load dynamic — editorial review completed; expert verification open
Where dynamics actually matters in practice — editorial review completed; expert verification open
Deciding whether a dynamic analysis is needed — editorial review completed; expert verification open
The model is not the structure — editorial review completed; expert verification open
The equation of motion — editorial review completed; expert verification open
Free vibration and the natural frequency — editorial review completed; expert verification open
Measuring damping from a decay trace — editorial review completed; expert verification open
Harmonic response and resonance — editorial review completed; expert verification open
What a single blow does — editorial review completed; expert verification open
Pulses, and why duration is everything — editorial review completed; expert verification open
The convolution integral — editorial review completed; expert verification open
The energy balance — editorial review completed; expert verification open
Dissipation per cycle and equivalent damping — editorial review completed; expert verification open
Newmark's method — editorial review completed; expert verification open
Stability, accuracy and demonstrating convergence — editorial review completed; expert verification open
Coupled motion and the matrices — editorial review completed; expert verification open
The eigenvalue problem, solved by hand — editorial review completed; expert verification open
Assembling the matrices — editorial review completed; expert verification open
Lumped and consistent mass — editorial review completed; expert verification open
Diaphragms, rotational inertia and eccentricity — editorial review completed; expert verification open
The general eigenproblem — editorial review completed; expert verification open
Orthogonality and normalisation — editorial review completed; expert verification open
Decoupling the equations — editorial review completed; expert verification open
Participation, effective mass and truncation — editorial review completed; expert verification open
The base-excitation equation — editorial review completed; expert verification open
Constructing a response spectrum — editorial review completed; expert verification open
Modal combination: SRSS and CQC — editorial review completed; expert verification open
Running a linear time-history analysis — editorial review completed; expert verification open
When the restoring force remembers — editorial review completed; expert verification open
Ductility, and what it buys — editorial review completed; expert verification open
The period shift — editorial review completed; expert verification open
Designing an isolated building — editorial review completed; expert verification open
How a viscous damper works — editorial review completed; expert verification open
Sizing and placing dampers — editorial review completed; expert verification open
Tuned mass dampers — editorial review completed; expert verification open
Passive, semi-active and active control — editorial review completed; expert verification open
Building a model that answers the question — editorial review completed; expert verification open
Checking a dynamic result — editorial review completed; expert verification open

Bridge engineering · 47/47 editorial reviews

bridge — editorial review completed; expert verification open
deck — editorial review completed; expert verification open
girder — editorial review completed; expert verification open
crossmember — editorial review completed; expert verification open
bearing — editorial review completed; expert verification open
bearing slide — editorial review completed; expert verification open
bearing anchor — editorial review completed; expert verification open
joint — editorial review completed; expert verification open
joint seal — editorial review completed; expert verification open
joint anchor — editorial review completed; expert verification open
abutment — editorial review completed; expert verification open
wingwall — editorial review completed; expert verification open
pier — editorial review completed; expert verification open
pilecap — editorial review completed; expert verification open
pile — editorial review completed; expert verification open
ground — editorial review completed; expert verification open
approach — editorial review completed; expert verification open
rail — editorial review completed; expert verification open
fastening — editorial review completed; expert verification open
sleeper — editorial review completed; expert verification open
ballast — editorial review completed; expert verification open
waterproof — editorial review completed; expert verification open
drain — editorial review completed; expert verification open
kerb — editorial review completed; expert verification open
kerb rebar — editorial review completed; expert verification open
parapet — editorial review completed; expert verification open
arch — editorial review completed; expert verification open
tie — editorial review completed; expert verification open
truss — editorial review completed; expert verification open
cable — editorial review completed; expert verification open
hanger — editorial review completed; expert verification open
tower — editorial review completed; expert verification open
hopper — editorial review completed; expert verification open
drain pipe — editorial review completed; expert verification open
drain chamber — editorial review completed; expert verification open
outfall — editorial review completed; expert verification open
backwall drain — editorial review completed; expert verification open
subsurface drain — editorial review completed; expert verification open
carriageway — editorial review completed; expert verification open
verge — editorial review completed; expert verification open
access walkway — editorial review completed; expert verification open
cable route — editorial review completed; expert verification open
access opening — editorial review completed; expert verification open
noise barrier — editorial review completed; expert verification open
ocs — editorial review completed; expert verification open
equipment — editorial review completed; expert verification open
rej — editorial review completed; expert verification open

Specific expert checks still open

Concrete and steel: applicable code clauses, National Annex choices, partial factors, execution classes and tolerances, connection detailing and second-order analysis. The previously flagged construction actions, internal punching checks, integrated load take-down, shared joint forces and effective plate areas have been corrected. Actual support, restraint, detailing and ground conditions remain project inputs.
Foundations: compatible bearing-factor methods, total and effective load conventions, and ground-specific stiffness and drainage. The logarithmic settlement approximation has been replaced with the flexible rectangular half-space solution; the rigid-square factor is identified separately. Rigid non-square settlement remains unavailable. The short free-head pile equilibrium now gives a checked mechanism load and moment demand; design resistance still needs section, mechanism, restraint and ground checks.
Soil mechanics: classification, drainage assumptions, laboratory interpretation, stress paths and critical-state models outside the illustrative cases.
Dynamics: loading spectra, modal participation, damping and comfort, fatigue or strength acceptance criteria.
Computational methods and bridge studies: convergence beyond the recorded cases, combined extreme inputs, three-dimensional geometry and project-specific acceptance criteria.

Concrete and steel teaching editions

The calculation profiles retain their stated first-generation Eurocode basis. New UK National Annexes have been published for BS EN 1992-1-1:2023 (31 March 2026) and BS EN 1993-1-1:2022 (31 July 2026). The examples have not been converted into second-generation calculations.

Check the applicable authority and project specification during the coexistence period. Do not combine provisions from different generations without considering their reliability and compatibility.

References requiring particular care

Steel execution material was originally based on BS EN 1090-2:2008+A1:2011. BS EN 1090-2:2018+A1:2024 is the newer publication. The original plated-elements references also omitted A2:2019. Affected clauses and examples require review before project use.

Official publication records

For learning

Use exercises to understand a principle, check dimensions and test sensitivity to an assumption. For project decisions, use the appropriate current standards, competent engineering judgement and the required checking process.

Report a possible error with the lesson title, inputs and result to info@thechartershipforum.org.