{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T21:25:36Z", "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": 2, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-05T23:50:00Z", "ingestedAt": "2026-10-05T20:46:32+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:29+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q2448108", "registryId": "vr.tr.structural-system", "name": "structural system", "version": "0.2.0-wave.2", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.BLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q2448108/", "model": { "registry_id": "vr.tr.structural-system", "name": "structural system", "purpose": "Let an agent explain structural systems and how they carry loads, help compare systems for a design, identify the system of an existing building, and describe standards and failure lessons.", "definition": "The load-bearing arrangement of a building or structure that carries gravity, wind and seismic loads to the ground, such as braced or moment frames, load-bearing walls, A-frames, trusses, shells, precast or prestressed concrete systems, lift-slab construction and traditional timber systems such as Bundwerk; the structural system is chosen in design to suit spans, loads, materials and architecture.", "what_it_is_for": "Carrying loads in buildings and structures.", "affordances": [ "explain structural system types", "compare systems for a design", "identify the system of a building", "describe codes and failure lessons" ], "distinguishing_features": [ "Load-bearing", "Material-specific", "Span and height dependent", "Code-governed" ], "appearance": "Frames, walls, columns, beams, trusses or shells, often hidden behind finishes.", "visual_identification": [ "Load path to ground", "Frames, walls, shells or trusses", "Cladding and partitions are non-structural" ], "physical_properties": [ { "quantity": "Structural span", "unit": "m", "typical_range": "", "note": "Measured between supports for the member or assembly being assessed." }, { "quantity": "Load resistance", "unit": "kN", "typical_range": "", "note": "Determined for a specified loading pattern and failure criterion through structural analysis or testing." }, { "quantity": "Lateral displacement", "unit": "mm", "typical_range": "", "note": "Measured or calculated at a specified location under a defined lateral load." }, { "quantity": "Fundamental vibration period", "unit": "s", "typical_range": "", "note": "Determined through modal analysis or measurements of structural vibration." } ], "families_and_kinds": [ "frame systems including braced and moment frames", "wall systems including load-bearing masonry and shear walls", "concrete systems including precast, prestressed and lift-slab", "timber systems including A-frames and Bundwerk", "long-span systems such as trusses, shells and cables" ], "related_models": [ { "relation": "is a kind of", "target": "subsystem", "why": "category" }, { "relation": "is a kind of", "target": "fixed construction", "why": "category" }, { "relation": "is part of", "target": "building", "why": "the whole" }, { "relation": "is related to", "target": "structural engineering", "why": "design field" } ], "identifiers": [], "standards_and_regulation": [ "Building codes and structural Eurocodes or equivalents", "Seismic design standards", "Material standards for concrete, steel and timber" ], "failure_modes_and_hazards": [ "Progressive collapse", "Seismic failure of unbraced systems", "Construction-stage failures such as in lift-slab" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Describe a building's structural system from design documents and inspection records it is authorized to read.", "Explain how different structural systems carry loads, citing engineering sources." ], "must_not": [ "Advise removing or altering walls, braces, columns or ties without a qualified engineer's assessment.", "Present a structure as sound when inspection findings show damage or overload.", "Recommend use, loading or occupancy beyond what the design allows.", "Hide defects found during construction, such as in temporary works or lift-slab stages." ], "requires_human": [ "Approving structural changes, repairs or change of use.", "Deciding whether a building is safe to occupy after an earthquake, fire or collapse warning." ] }, "ethics": { "considerations": [ "Structural failure kills occupants and passers-by; safety must not give way to cost or speed.", "Traditional systems are also heritage, and alteration can destroy what makes them valuable." ], "affected_parties": [ "Occupants", "Construction workers", "People nearby" ] }, "owners": { "steward": "The building owner; the designing engineer answers for the design and the building control authority for approval.", "master_systems": [ "Building control and permit records" ] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q2448108: structural system", "url": "https://www.wikidata.org/wiki/Q2448108", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Structural system", "url": "https://en.wikipedia.org/wiki/Structural_system", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "identify", "name": "Identify", "description": "Which system.", "rationale": "Existing buildings.", "layers": [ { "id": "recognise", "name": "Recognise", "description": "Recognising a system.", "findings": [ { "id": "recognise-finding", "name": "Recognise", "description": "Recognition.", "questions": [ { "text": "What structural system does this building use, judging by its visible elements and era?", "kind": "definition" }, { "text": "Where does its load path run?", "kind": "definition" } ] } ] }, { "id": "assess", "name": "Assess", "description": "Assessing condition.", "findings": [ { "id": "assess-finding", "name": "Assess", "description": "Assessment.", "questions": [ { "text": "How is the condition of a structural system assessed, and when is an engineer needed?", "kind": "provenance" }, { "text": "Are there signs of structural distress needing urgent action?", "kind": "boundary" } ] } ] } ] }, { "id": "design", "name": "Design", "description": "Choosing a system.", "rationale": "New buildings.", "layers": [ { "id": "compare", "name": "Compare", "description": "Comparing systems.", "findings": [ { "id": "compare-finding", "name": "Compare", "description": "Comparison.", "questions": [ { "text": "Which structural systems suit this span, height, loads, site and material preference?", "kind": "action" }, { "text": "What are the trade-offs in cost, speed and carbon?", "kind": "boundary" } ] } ] }, { "id": "codes", "name": "Codes", "description": "Codes and analysis.", "findings": [ { "id": "codes-finding", "name": "Codes", "description": "Codes.", "questions": [ { "text": "Which codes and analysis methods govern the design of this system here?", "kind": "provenance" }, { "text": "How are seismic and wind loads addressed?", "kind": "provenance" } ] } ] } ] }, { "id": "systems", "name": "Systems", "description": "How systems work.", "rationale": "Mechanics.", "layers": [ { "id": "frames", "name": "Frames", "description": "Frames and walls.", "findings": [ { "id": "frames-finding", "name": "Frames", "description": "Frames and walls.", "questions": [ { "text": "How do braced frames, moment frames and shear walls resist lateral loads?", "kind": "definition" }, { "text": "How do load-bearing walls differ from frames?", "kind": "definition" } ] } ] }, { "id": "concrete", "name": "Concrete", "description": "Concrete and timber systems.", "findings": [ { "id": "concrete-finding", "name": "Concrete", "description": "Concrete and timber.", "questions": [ { "text": "How do precast, prestressed and lift-slab concrete systems work, and what are A-frames and Bundwerk?", "kind": "definition" }, { "text": "Which entry fits a specific system?", "kind": "action" } ] } ] } ] }, { "id": "learn", "name": "Learn", "description": "Failures and history.", "rationale": "Lessons.", "layers": [ { "id": "failures", "name": "Failures", "description": "Structural failures.", "findings": [ { "id": "failures-finding", "name": "Failures", "description": "Failures.", "questions": [ { "text": "Which structural failures taught lessons about this system type, according to investigations?", "kind": "provenance" }, { "text": "What changed in codes as a result?", "kind": "provenance" } ] } ] }, { "id": "history", "name": "History", "description": "History of systems.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How did structural systems evolve from masonry and timber to steel, concrete and composites?", "kind": "provenance" }, { "text": "Which buildings were milestones?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should each system type be a separate entry?", "How should codes be linked?", "How should failure case studies be linked?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }