beam

Structural sense and member extent

Record evidence for the structural interpretation and identify the ends, splices and assemblies included in the member.

1. Does the originating registry evidence identify a structural member rather than a radiation or particle beam? definition
2. Where does this beam begin and end, and are spliced or built-up components treated as one member? boundary

Supported and supporting elements

Describe the member's transverse load-bearing role and any concurrent axial or torsional role.

1. Which objects transfer load onto this beam, and which objects receive load from it? boundary
2. What drawings, observations or assessments establish its beam role and any overlapping column, joist, girder or lintel role? provenance

Section profile and discontinuities

Record section shape, orientation, taper, curvature and local changes such as openings or notches.

1. What are the beam's overall length, section dimensions and orientation relative to the applied loads? measurement
2. Where do section size, curvature, holes, notches or other geometric discontinuities change along the member? measurement

Verified construction and composite action

Capture material identification and applicable reinforcement, prestress, laminations or connections between participating components.

1. What records or investigations establish the material, grade and relevant reinforcement, prestress or built-up construction? provenance
2. Which adjoining components are assumed to act compositely with the beam, and what evidence establishes their load transfer? boundary

Actual support conditions

Distinguish observed support details from idealised pinned, fixed or sliding assumptions.

1. Where are the supports, what are the bearing lengths, and what clear spans and overhangs result? measurement
2. What evidence supports the assumed translational and rotational restraint at each connection? provenance

Restraint-dependent configuration

Record which attachments restrain lateral movement or twist and which interfaces transmit bending across member segments.

1. Which attachments restrain lateral movement or twisting, and over what lengths is that restraint absent or unverified? measurement
2. Would removing decking, bracing, a splice component or temporary support change the assumed beam behaviour? action

Loads and governing checks

Identify applicable load cases and assessment of bending, shear, torsion, axial interaction, bearing and instability where relevant.

1. What permanent, variable, concentrated, distributed or moving loads act on the beam, with what directions and positions? measurement
2. Which assessment establishes the governing checks and permitted loading for this material, configuration and use? provenance

Measured response against baseline

Keep measured displacement and vibration distinct from initial camber, predicted response and long-term change.

1. What deflection, rotation or vibration was measured, at which locations and under what loading and environmental conditions? measurement
2. What baseline and applicable criteria distinguish initial camber, reversible response and persistent deformation? provenance

Located defects and unknowns

Describe defects by position, extent and observation method without treating absence of visible damage as proof of adequacy.

1. Where are cracks, corrosion, decay, crushing, buckling, delamination or other relevant defects, and what is their measured extent? measurement
2. Which faces, bearings, connections or internal components were inaccessible, and how does that limit the inspection finding? boundary

Intervention basis and follow-up

Record the basis for drilling, cutting, repair, strengthening, support changes or removal, including temporary conditions and verification.

1. What member-specific assessment and temporary support sequence are required for the proposed alteration or removal? action
2. What loading restrictions, inspection triggers and completion checks govern use before, during and after the intervention? action

Check these first

Recalled without web access and unsourced; every item is a lead to verify.

• The registry records no sense; the structural interpretation is assumed and should be checked against the originating entry.
• Beam dimensions and capacities vary too widely across materials and applications to provide a useful universal typical range.
• Standards are recalled references, not consulted sources; applicable editions and jurisdictional adoption require verification.

1. Which of these check these first hold for the sense of beam this model covers, and on what evidence? provenance

Kinds and varieties

Recalled without web access and unsourced; every item is a lead to verify.

• Simply supported beam
• Cantilever beam
• Continuous beam
• Fixed-ended beam
• Overhanging beam

1. Which of these kinds and varieties hold for the sense of beam this model covers, and on what evidence? provenance

Identifiers and schemes

Recalled without web access and unsourced; every item is a lead to verify.

• AISC structural steel shape designation - W followed by nominal depth and mass per unit length, such as W12×26 - In US customary designations, depth is in inches and weight per unit length is in pounds per foot; identifies a section size rather than an individual beam.

1. Which of these identifiers and schemes hold for the sense of beam this model covers, and on what evidence? provenance

Standards and regulation

Recalled without web access and unsourced; every item is a lead to verify.

• ANSI/AISC 360, Specification for Structural Steel Buildings - American Institute of Steel Construction.
• EN 1993, Eurocode 3: Design of steel structures - European Committee for Standardization (CEN).
• EN 1992, Eurocode 2: Design of concrete structures - CEN.
• EN 1995, Eurocode 5: Design of timber structures - CEN.

1. Which of these standards and regulation hold for the sense of beam this model covers, and on what evidence? provenance

Real-world use

Recalled without web access and unsourced; every item is a lead to verify.

• Supporting building floors and roofs.
• Spanning openings above doors and windows.
• Carrying bridge decks.
• Supporting crane runways.
• Carrying transverse loads in machine frames.

1. Which of these real-world use hold for the sense of beam this model covers, and on what evidence? provenance

Failure modes and hazards

Recalled without web access and unsourced; every item is a lead to verify.

• Flexural failure through yielding, fracture or crushing, depending on material.
• Shear failure, particularly near supports or concentrated loads.
• Lateral-torsional buckling of inadequately restrained slender beams.
• Excessive deflection or vibration that impairs serviceability.
• Loss of capacity through deterioration, fatigue or fire exposure.

1. Which of these failure modes and hazards hold for the sense of beam this model covers, and on what evidence? provenance

Regional variation

Recalled without web access and unsourced; every item is a lead to verify.

• Steel section naming differs: W shapes are common in North America, UB designations in the United Kingdom, and IPE and HE series in continental Europe.
• Applicable design rules and load requirements depend on jurisdiction; Eurocodes also use national annexes.

1. Which of these regional variation hold for the sense of beam this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Recalled without web access and unsourced; every item is a lead to verify.

• column - A column primarily carries axial compression; a beam primarily resists transverse loading through bending, although members can perform both roles.
• girder - A girder is generally a principal beam supporting other members; the distinction is functional and terminology varies.
• joist - A joist is a beam used as one of a repeated series supporting a floor or roof.
• truss - A truss uses an assembly of members carrying primarily axial forces, whereas an ordinary beam carries loads through bending and shear in its section.
• radiation beam - A radiation beam is a directed stream of particles or electromagnetic radiation, rather than a structural member.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of beam this model covers, and on what evidence? provenance