Expansion Joint System

Definition

Deck discontinuities accommodating movement between bridge segments.

Class kind

system

Abstract

yes

Depth

2

Origin

reference source

Ontology

engineering-reference-book.bridge v1.0.0

Aliases

—

Abbreviations

—

Last changed

7/27/2026, 2:50:05 PM

Identification

Positive labels

Expansion Joint System

Negative labels

—

Visual features

—

Min identity clues

0

Evidence

Preferred views

—

Evidence types

view, detail, schedule, note, dimension, level, section_callout

Source trace required

yes

Measurements (0)

None — this class carries no measured quantities.

Relationships (0)

None declared.

BOQ items (0)

None — no quantity is derived from this class directly.

Validation

Blocking if missing

no

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 (4)

• Strip Seal Expansion Joint bridge.superstructure.expansion_joint_system.strip_seal
• Modular Expansion Joint bridge.superstructure.expansion_joint_system.modular
• Finger Plate Expansion Joint bridge.superstructure.expansion_joint_system.finger_plate
• Compression Seal Joint bridge.superstructure.expansion_joint_system.compression_seal