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Published

caisson

vr.tr.caisson-q5017834 · thing-q5017834

Let an agent describe caisson ceilings, their construction, symbolism and notable examples, and tell them from Western coffered ceilings.

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

4 bundles · 8 layers · 8 findings · 16 questions

Form What it looks like.

Geometry

Tiers and shapes.

Geometry

Shape and tiers.

  1. What shape and how many tiers? provenance
  2. Is it radiating like a web? boundary

Decoration

Carving and painting.

Decoration

Motifs.

  1. Which motifs decorate it? provenance
  2. What is at the centre? provenance
Construction How it is built.

Structure

Brackets and beams.

Structure

Elements.

  1. Which structural elements form it? provenance
  2. Is it load-bearing or decorative? boundary

Materials

Timber and paint.

Materials

Materials.

  1. Which materials are used? provenance
  2. Have they been restored? provenance
Meaning Symbolism and placement.

Placement

Above throne or altar.

Placement

Location in the building.

  1. Where in the building is it? provenance
  2. Why there? provenance

Symbolism

Meanings.

Symbolism

Meaning and source.

  1. What does it symbolise? provenance
  2. According to which source? provenance
Examples Notable caissons.

Buildings

Locations.

Example

Building and date.

  1. Which buildings have notable caissons? provenance
  2. From when? provenance

Protection

Heritage status.

Heritage status

Listing.

  1. Is the building protected? provenance
  2. At what level? provenance

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.BLT

What it is Filled

A caisson ceiling (zaojing), also called a spider web ceiling, in traditional East Asian, especially Chinese, architecture: an elaborate recessed, often domed ceiling feature, usually above an important seat or image, built of nested square, octagonal or circular tiers; timber examples use bracket construction, and Buddhist caves reproduce the form in paint or modelling.

Why it exists Filled

Let an agent describe caisson ceilings, their construction, symbolism and notable examples, and tell them from Western coffered ceilings.

Distinguishing features Filled

  • An elaborate recessed feature; a hall may have several, unlike Western coffered ceilings with repeated uniform panels.
  • Timber examples commonly use dougong bracket sets; cave examples are painted or modelled.
  • Some forms are read as round heaven over square earth, according to specific sources.

What robots and AI may and may not do Filled

Must not

  • present uncertain attributions as fact

May

  • describe forms, symbolism and examples

Moral aspects Filled

  • heritage conservation

Who is affected

  • communities
  • visitors

Owners Filled

Steward

the owner of each building, with heritage authorities for protected ones

Master systems

  • heritage registers

Links to other meta-models Filled

parent

  • Q221706 - registry parent class
  • Q811979 - registry parent class

related

  • ceiling - architectural element
  • coffered ceiling - Western form
  • dougong - bracket system
  • Chinese palace and temple architecture - context

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.caisson-q5017834
  • Wikidata: Q5017834 (https://www.wikidata.org/wiki/Q5017834)

Direct properties not applicable Not applicable

Not applicable

Caissons vary; dimensions belong to each ceiling.

Recognition required Filled

  • Concentric tiers of brackets forming a recessed dome
  • Radiating, web-like patterns in some examples
  • A sunken, layered ceiling with brackets, carving and painting, often with a dragon or lotus at the centre.

Capabilities and actions required Filled

  • describe construction and forms
  • describe symbolism and placement
  • give notable examples
  • tell from coffered ceilings

Hazards and failure modes required Filled

  • Decay and fire in timber buildings

Standards and interfaces required Filled

  • Heritage protection of historic buildings, such as China's Cultural Relics Protection Law

Context of use required Filled

  • Decorating and marking the most important space of a hall, such as above a throne or altar.
  • square and octagonal tiered caissons
  • circular caissons
  • spider-web (radiating) caissons

Sources Filled

  1. Q5017834 - identity of the registry item, labels and sitelinks
  2. Zaojing - Domed decoration, nested square, octagonal and circular forms, dragon motifs and important halls.
  3. Ceiling Decorations - Palace examples, placement and round-heaven and square-earth symbolism.
  4. Mogao Cave 79 - Painted cave caissons and lotus decoration.
  5. The Tianhua and Zaojing Ceilings of the Yongle Taoist Temple in Ruicheng, Shanxi Province - Survey-based documentation of caisson forms and construction at Yongle Temple.
  6. Caisson (Asian architecture) - 'Spider web ceiling' synonym, multiple caissons in a hall and distinction from ordinary coffering.
  7. Law of the People's Republic of China on Cultural Relics Protection - Heritage protection framework for qualifying historic buildings.

Open questions

  • Should the entry be named zaojing or caisson ceiling?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q5017834/spec.json