{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.arch","code":"thing-q12277","url":"https://ver.cy/models/thing/q12277/","name":"arch","alternateNames":["wooden arch","iron arch","diaphragm arch","pointed arch","whalebone arch","Syrian arch","jack arch","semicircular arch","flood arch","mitre arch","parabolic arch","three lob horseshoe arch"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.BLT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"An arch is a structure spanning a space in a vertical plane, typically with a curved profile, that may or may not support a load above it, in forms such as round, pointed, flat and diaphragm arches, built of stone, brick, wood or iron.","purpose":"Let an agent handle arches by form, material, structural behaviour, condition and heritage.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Structural arches carry loads mainly in compression.","Structural arches require supports capable of resisting their thrust.","Arch forms help define architectural styles.","Freestanding arches can serve as monuments."],"structure":{"bundles":[{"id":"form","name":"Form","description":"Shape and style.","layers":[{"id":"shape","name":"Shape","description":"Round, pointed.","findings":[{"id":"shape-finding","name":"Shape","description":"Arch form.","questions":[{"text":"What form is the arch?","kind":"definition"},{"text":"Which style does it indicate?","kind":"definition"}]}]},{"id":"material","name":"Material","description":"Stone, brick, iron.","findings":[{"id":"material-finding","name":"Material","description":"Material.","questions":[{"text":"What is it built of?","kind":"definition"},{"text":"When was it built?","kind":"provenance"}]}]}]},{"id":"structure","name":"Structure","description":"How it works.","layers":[{"id":"behaviour","name":"Behaviour","description":"Compression and thrust.","findings":[{"id":"behaviour-finding","name":"Behaviour","description":"Structural behaviour.","questions":[{"text":"How does the arch carry load?","kind":"definition"},{"text":"What resists its thrust?","kind":"definition"}]}]},{"id":"capacity","name":"Capacity","description":"Assessment.","findings":[{"id":"capacity-finding","name":"Capacity","description":"Assessed capacity.","questions":[{"text":"What load can it carry?","kind":"measurement"},{"text":"How was it assessed?","kind":"provenance"}]}]}]},{"id":"condition","name":"Condition","description":"State and repair.","layers":[{"id":"defects","name":"Defects","description":"Cracks and movement.","findings":[{"id":"defects-finding","name":"Defects","description":"Defects.","questions":[{"text":"Are there cracks, spreading or displaced stones?","kind":"measurement"},{"text":"Is it safe?","kind":"boundary"}]}]},{"id":"repair","name":"Repair","description":"Conservation.","findings":[{"id":"repair-finding","name":"Repair","description":"Repair approach.","questions":[{"text":"How should it be repaired?","kind":"action"},{"text":"Which specialists should be involved?","kind":"action"}]}]}]},{"id":"heritage","name":"Heritage","description":"Protection.","layers":[{"id":"status","name":"Status","description":"Listing.","findings":[{"id":"status-finding","name":"Status","description":"Protection.","questions":[{"text":"Is the arch protected?","kind":"provenance"},{"text":"What consent is needed?","kind":"boundary"}]}]},{"id":"meaning","name":"Meaning","description":"Monuments.","findings":[{"id":"meaning-finding","name":"Meaning","description":"Commemorative meaning.","questions":[{"text":"Does it commemorate something?","kind":"provenance"},{"text":"Is its meaning contested?","kind":"boundary"}]}]}]}]},"agentConduct":{"may":["Inspect and report the condition of an arch, such as cracks or displaced stones.","Describe an arch and its form from drawings and records."],"mustNot":["Remove or cut into an arch or the walls that restrain it without a structural assessment.","Load an arch beyond what its owner or engineer has approved.","Damage historic arches or carved stonework."],"requiresHuman":["Altering, repairing or demolishing an arch in an occupied or listed structure."]},"ethics":{"considerations":["A failing arch can bring down what it supports onto people.","Historic arches carry the craft and identity of places."],"affectedParties":["Occupants and passers-by","Owners of the structure","Heritage communities"]},"owners":{"steward":"The owner of the structure; heritage authorities protect listed arches.","roles":[],"masterSystems":["Heritage registers where listed"]},"relations":[{"target":"Q391414","type":"parent","note":"registry parent class"},{"target":"Q811979","type":"parent","note":"registry parent class"},{"target":"architectural element","type":"related","note":"element"},{"target":"bridge and building","type":"related","note":"use"},{"target":"load","type":"related","note":"structure"},{"target":"heritage","type":"related","note":"listing"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.arch","Wikidata: Q12277 (https://www.wikidata.org/wiki/Q12277)"]},"properties":{"applicability":"required","items":["span: 0.5-500+ m - masonry to steel bridge arches"]},"recognition":{"applicability":"required","items":["Curved span with springings and keystone","Forms such as pointed or round","Materials from stone to iron","A curved span over an opening; triumphal arches and whalebone arches are freestanding forms."]},"capabilities":{"applicability":"required","items":["design and build it","assess its stability","repair and conserve it","identify its style"]},"hazards":{"applicability":"required","items":["Collapse from abutment movement","Keystone or mortar failure","Vehicle strikes"]},"interfaces":{"applicability":"required","items":["Masonry assessment codes","Heritage protection law"]},"context":{"applicability":"required","items":["Spanning openings and carrying loads in buildings and bridges, and as monuments.","round and segmental arches","pointed arches","flat arches","diaphragm arches","triumphal and memorial arches"]}},"sources":[{"title":"Wikidata item Q12277: arch","url":"https://www.wikidata.org/wiki/Q12277","note":"identity and sense of the item"},{"title":"Wikipedia: Arch","url":"https://en.wikipedia.org/wiki/Arch","note":"general description of the item"}],"openQuestions":["Should arch forms be separate entries?","How should structural assessments be recorded?","How should freestanding arches be linked to monuments?"],"resources":{"spec":"/models/things/publications/thing-q12277/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q12277/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T06:37:35Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-08T18:54:35+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}