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Spherical Bearing

bridge.superstructure.bearing_system.spherical_bearing

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Definition

Spherical Bearing transferring reactions between the superstructure and substructure.

Class kind: component
Abstract: no
Depth: 3
Origin: reference source
Ontology: engineering-reference-book.bridge v1.0.0
Aliases: Spherical Sliding Bearing
Abbreviations: —
Last changed: 7/27/2026, 2:50:05 PM

Identification

Positive labels: Spherical Bearing, Spherical Sliding Bearing
Negative labels: —
Visual features: compact device at support line; bearing symbol
Min identity clues: 2

Evidence

Preferred views: elevation, plan, bearing_detail, bearing_schedule
Evidence types: view, detail, schedule, note, dimension, level, section_callout
Source trace required: yes

Measurements (6)

Name	Symbol	Unit	Required
Length	`L`	m/mm	required
Width	`W`	m/mm	required
Height	`H`	m/mm	required
Bearing Count	`N_brg`	count	required
Rated Capacity	`CAP`	kN/MN	required
Material Type	`MAT`	—	required

Relationships (2)

placed_onbridge.substructure.bearing_seat
supportsbridge.superstructure.main_load_system

BOQ items (1)

Item code	Formula	Result	Unit
`bridge.bearing.spherical_bearing.count`	`N_brg`	count	count

Facets

movement: fixed, guided, free

Validation

Blocking if missing: yes
Human review allowed: yes

no_evidence_no_number
retain_document_page_bbox_and_evidence_id
do_not_mix_drawing_revisions
do_not_average_conflicting_values
prefer_explicit_labels_over_shape_only
match_plan_elevation_and_section_when_applicable

Provenance

Basis: engineering_reference
Project values included: no

Children (0)

None — this is a leaf class and can be deleted.