{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T05:51:18Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 3, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T10:00:00Z", "ingestedAt": "2026-10-06T07:10:13+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "revisions": [ { "at": "2026-10-06T22:37:56+00:00", "engine": "codex", "fields": [ "definition" ], "answering_review": "f50eef271eb82da02c01fcb22f55ec39b6eec873ba394d35fa95e42f68b79c4b" } ], "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:26+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q1727909", "registryId": "vr.tr.steel-frame-construction", "name": "steel frame construction", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.BLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1727909/", "model": { "registry_id": "vr.tr.steel-frame-construction", "name": "steel frame construction", "purpose": "Let an agent explain steel frame construction and how it works, relay design, connections, fire protection and standards from structural engineering sources, describe its history and applications, and distinguish steel framing from reinforced concrete, timber and light-gauge steel framing.", "definition": "A building technique in which a skeleton of vertical steel columns and horizontal beams, connected by bolting, riveting or welding, carries the loads of a structure, with floors carrying loads and transferring them to the supporting frame while walls and cladding need not carry the building's primary structural loads, developed in Chicago in the 1880s and enabling skyscrapers, long-span industrial buildings and prefabricated systems; steel frames are designed for strength, stability and fire protection and are distinct from reinforced concrete and timber framing.", "what_it_is_for": "Supporting buildings with a steel skeleton.", "affordances": [ "explain the system", "relay design and standards", "describe history and applications", "distinguish from other systems" ], "distinguishing_features": [ "Non-load-bearing walls", "Bolted, riveted or welded connections", "High strength-to-weight", "Fire protection required" ], "appearance": "A grid of steel columns and beams, later clad in walls and floors.", "visual_identification": [ "Skeleton of steel columns and beams", "Skyscraper frames, portal frames, braced and moment frames, prefabricated steel systems", "Reinforced concrete frames use concrete; timber frames use wood; light-gauge steel is cold-formed studs" ], "physical_properties": [ { "quantity": "first steel-frame skyscraper", "typical_range": "Home Insurance Building", "unit": "building", "note": "Chicago 1885" }, { "quantity": "structural steel yield strength", "typical_range": "about 250-460", "unit": "MPa", "note": "common grades" }, { "quantity": "tallest steel-framed building", "typical_range": "Burj Khalifa uses concrete; Willis Tower steel", "unit": "note", "note": "illustrative" } ], "families_and_kinds": [ "braced frames", "moment-resisting frames", "portal frames for industrial buildings", "composite steel and concrete frames", "modular and prefabricated steel systems", "light-gauge steel framing as a related system" ], "related_models": [ { "relation": "is a kind of", "target": "frame construction", "why": "in registry terms" }, { "relation": "enabled", "target": "skyscraper", "why": "construction" }, { "relation": "uses", "target": "structural steel", "why": "sections" }, { "relation": "is contrasted with", "target": "reinforced concrete", "why": "framing" } ], "identifiers": [], "standards_and_regulation": [ "Eurocode 3 and AISC specifications for steel design", "Fire resistance requirements in building codes", "Welding and fabrication standards such as EN 1090" ], "failure_modes_and_hazards": [ "Loss of strength in fire without protection", "Connection failures and fatigue", "Corrosion", "Progressive collapse" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Explain steel frame construction and its history, citing engineering sources.", "Report visible corrosion, deformation or fire protection damage to the building owner." ], "must_not": [ "Alter, cut or remove structural members without an engineer's design.", "Remove or damage fire protection on steelwork.", "Certify a structure as safe without qualified inspection." ], "requires_human": [ "Approving structural changes or occupancy after damage or fire." ] }, "ethics": { "considerations": [ "Structural failures kill occupants and passers-by.", "Construction work carries high risks for workers at height." ], "affected_parties": [ "Occupants", "Construction workers", "Passers-by" ] }, "owners": { "steward": "The building owner; building control authorities approve designs.", "master_systems": [ "Building permit records" ] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q1727909: steel frame construction", "url": "https://www.wikidata.org/wiki/Q1727909", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Steel frame", "url": "https://en.wikipedia.org/wiki/Steel_frame", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What steel frame construction is.", "rationale": "Science.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is steel frame construction, and how does it differ from reinforced concrete, timber and light-gauge steel framing?", "kind": "definition" }, { "text": "Is the question about the system in general, a frame type or a specific building?", "kind": "boundary" } ] } ] }, { "id": "elements", "name": "Elements", "description": "Elements.", "findings": [ { "id": "elements-finding", "name": "Elements", "description": "Elements.", "questions": [ { "text": "What are columns, beams, bracing, connections and floor systems in a steel frame?", "kind": "definition" }, { "text": "Which entry fits the specific element?", "kind": "action" } ] } ] } ] }, { "id": "design", "name": "Design", "description": "Design and fabrication.", "rationale": "Practice.", "layers": [ { "id": "design", "name": "Design", "description": "Design.", "findings": [ { "id": "design-finding", "name": "Design", "description": "Design.", "questions": [ { "text": "How are steel frames designed for loads, stability and lateral forces under Eurocode 3 and AISC?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "fabrication", "name": "Fabrication", "description": "Fabrication and erection.", "findings": [ { "id": "fabrication-finding", "name": "Fabrication", "description": "Fabrication.", "questions": [ { "text": "How are steel frames fabricated, connected and erected on site?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "safety", "name": "Safety", "description": "Fire and durability.", "rationale": "Regulation.", "layers": [ { "id": "fire", "name": "Fire", "description": "Fire protection.", "findings": [ { "id": "fire-finding", "name": "Fire", "description": "Fire.", "questions": [ { "text": "Why does steel need fire protection, and how is it provided?", "kind": "provenance" }, { "text": "Which entry fits fireproofing?", "kind": "action" } ] } ] }, { "id": "durability", "name": "Durability", "description": "Durability.", "findings": [ { "id": "durability-finding", "name": "Durability", "description": "Durability.", "questions": [ { "text": "How are corrosion and fatigue managed in steel frames?", "kind": "provenance" }, { "text": "Which entry fits corrosion protection?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "History and sustainability.", "rationale": "Context.", "layers": [ { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How did steel framing develop in Chicago and enable skyscrapers, as historians describe?", "kind": "provenance" }, { "text": "Which entry fits the Chicago school of architecture?", "kind": "action" } ] } ] }, { "id": "sustainability", "name": "Sustainability", "description": "Sustainability.", "findings": [ { "id": "sustainability-finding", "name": "Sustainability", "description": "Sustainability.", "questions": [ { "text": "What are the carbon and recycling considerations of steel framing, with analyses attributed?", "kind": "provenance" }, { "text": "Which entry fits sustainable construction?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should skyscraper and portal frame be separate primary entries?", "How should engineering standards be linked?", "How should light-gauge steel framing be recorded?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }