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reinforced concrete construction

vr.tr.reinforced-concrete-construction · thing-q1577013

Let an agent describe a reinforced concrete structure by its elements, materials, design code, durability and condition, and route safety questions to a qualified engineer.

Thing Registry Physical world and living systems PHY.BLT
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

5 bundles · 10 layers · 10 findings · 20 questions

Structural system What the structure is and how it carries load.

Elements

Beams, columns, slabs, walls and foundations.

Element inventory

The elements and their roles.

  1. Which elements carry the loads in this structure? definition
  2. Are they cast in place or precast? provenance

Design basis

Code, loads and design life.

Design code

The code and classes used.

  1. Which design code and edition applied? provenance
  2. What design working life and loads were assumed? measurement
Materials Concrete and steel properties.

Concrete

Mix, strength and exposure.

Strength and class

Specified and tested strength.

  1. What strength class was specified and achieved? measurement
  2. Which exposure class applies? boundary

Reinforcement

Bars, mesh and cover.

Steel and cover

Grade, layout and cover depth.

  1. What steel grade and bar layout were used? measurement
  2. Is the concrete cover adequate for the exposure? boundary
Durability and condition How the structure ages.

Deterioration

Carbonation, chlorides, freeze-thaw.

Corrosion state

Evidence and extent of corrosion.

  1. Is there carbonation or chloride at the bar depth? measurement
  2. Where is spalling or rust staining visible? measurement

Inspection

Records of condition.

Inspection record

Findings, dates and inspector.

  1. When was the structure last inspected and by whom? provenance
  2. Which defects need action now? action
Construction and execution How it was built.

Site execution

Formwork, placing and curing.

Execution quality

Compaction, curing and tolerances.

  1. Was the concrete compacted and cured as specified? provenance
  2. Were cover and bar positions checked before casting? boundary

Watertightness

Basements and tanks as watertight boxes.

Water resistance

Crack width limits and joints.

  1. Is the basement designed as a watertight concrete box? definition
  2. How are joints sealed? measurement
Safety and change Altering or repairing a structure.

Alterations

Openings, added loads, change of use.

Change control

Who approves alterations.

  1. Does this change need a structural engineer and permit? boundary
  2. What load can the element take now? measurement

Repair

Repair and strengthening methods.

Repair method

Patch repair, cathodic protection, strengthening.

  1. Which repair method suits this damage? action
  2. What standard governs the repair? provenance

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.BLT
Other names and narrower kinds
White tub

What it is Filled

Building with concrete that contains embedded steel reinforcement, usually bars or mesh, so that the steel carries tension and the concrete carries compression; the term covers both the method and structures built with it, including watertight basement boxes.

Why it exists Filled

Let an agent describe a reinforced concrete structure by its elements, materials, design code, durability and condition, and route safety questions to a qualified engineer.

Distinguishing features Filled

  • Reinforcement is embedded so that it acts together with the concrete, whether the element is cast in place or precast.
  • Prestressed concrete tensions the steel before load; ordinary reinforced concrete does not.
  • Plain concrete without reinforcement cannot carry significant tension.
  • Surface appearance alone cannot show the reinforcement layout or the capacity.

What robots and AI may and may not do Filled

Must not

  • declare a structure safe or unsafe without a qualified engineer
  • advise cutting or drilling through structural elements without design checks
  • invent design values or code clauses

Only with a human decision

  • any decision on load changes, repair or demolition

May

  • explain how reinforced concrete works
  • record and classify visible defects from an inspection report

Moral aspects Filled

  • public safety of occupants and users
  • embodied carbon of cement

Who is affected

  • occupants and users of structures
  • workers on site

Owners Filled

Steward

the building owner, with the designer and authority having jurisdiction

Master systems

  • building permit records
  • as-built drawings and inspection reports

Links to other meta-models Filled

parent

  • Q1907757 - registry parent class

related

  • concrete - matrix material
  • rebar - reinforcement
  • prestressed concrete - different method of using steel
  • building code - design and execution rules

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.reinforced-concrete-construction
  • Wikidata: Q1577013 (https://www.wikidata.org/wiki/Q1577013)
  • EN 206 exposure class: X0, XC1-XC4, XD1-XD3, XS1-XS3, XF1-XF4, XA1-XA3 record the edition and national provisions
  • concrete strength class: C25/30 style cylinder/cube characteristic strength in MPa per EN 206

Direct properties required Filled

  • concrete compressive strength: 20-50 MPa - characteristic cylinder strength at 28 days for common structural classes
  • density: 2400-2500 kg/m3 - normal-weight reinforced concrete
  • reinforcing steel yield strength: 400-600 MPa
  • nominal concrete cover: 20-75 mm - set by exposure, bond, fire resistance, tolerances and design life

Recognition required Filled

  • Cast concrete elements with visible formwork joints
  • Exposed rusted bars where concrete has spalled
  • Monolithic connections between beams, columns and slabs
  • Grey concrete surfaces, often with formwork marks; reinforcement is usually concealed and shows only at damage, connections or unfinished work.

Capabilities and actions required Filled

  • identify the structural system and elements
  • read the design code and exposure class
  • record inspection findings such as cracks and corrosion
  • estimate remaining service life with an engineer

Hazards and failure modes required Filled

  • Corrosion of reinforcement from carbonation or chlorides, causing spalling
  • Insufficient cover or poor compaction
  • Cracking from shrinkage, overload or settlement
  • Shear, punching, bond or anchorage failure
  • Excessive long-term deflection from creep
  • Fire spalling at high temperature

Standards and interfaces required Filled

  • EN 1992 Eurocode 2 design of concrete structures (CEN), with the National Annex of the country
  • ACI 318 Building Code Requirements for Structural Concrete (American Concrete Institute)
  • EN 206 concrete specification (CEN)
  • EN 13670 execution of concrete structures (CEN)
  • Standards bind only where adopted by law; record the edition and jurisdiction

Context of use required Filled

  • Building frames, slabs, foundations, walls, bridges and tanks that need strength in both tension and compression at low cost.
  • cast-in-place frames
  • precast reinforced concrete
  • flat slabs
  • shear walls
  • foundations and piles
  • watertight concrete basements
  • reinforced concrete bridges

Sources Filled

  1. Q1577013 - identity of the registry item, labels and sitelinks
  2. What is reinforced concrete? - embedded reinforcement and composite action
  3. Reinforced concrete vs. prestressed concrete - difference from prestressed concrete
  4. Eurocode 2: Design of concrete structures - scope of EN 1992 and related standards
  5. Eurocode 2: Background and Applications - strength classes, exposure, cover, durability and failure modes
  6. ACI 318 Building Code Portal - ACI 318 scope
  7. Reinforced concrete - general description

Open questions

  • Should the method and the structures built with it be separate entries?
  • How should the watertight basement sense merged into this entry be shown?
  • The registry's Wikidata description does not describe this subject and should be corrected.

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q1577013/spec.json