Pier Shaft

Definition

Vertical pier member transferring cap reactions to the foundation.

Class kind

component

Abstract

no

Depth

3

Origin

reference source

Ontology

engineering-reference-book.bridge v1.0.0

Aliases

Pier Column, Pier Stem, Bent Column

Abbreviations

—

Last changed

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

Identification

Positive labels

Pier Shaft, Pier Column, Pier Stem, Bent Column

Negative labels

—

Visual features

vertical structural member below pier cap

Min identity clues

2

Evidence

Preferred views

plan, elevation, cross_section

Evidence types

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

Source trace required

yes

Measurements (4)

Relationships (2)

• supported_bybridge.foundation_system
• supportsbridge.substructure.pier_system.pier_cap

BOQ items (0)

None — no quantity is derived from this class directly.

Facets

shape

circular, rectangular, oblong, hollow_circular, hollow_rectangular

configuration

single, twin, multi_column, wall, trestle

construction

cast_in_situ, precast_segmental, slip_formed

seismic_detailing

ductile, non_ductile

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

drawing_observed

Project values included

no

vadhavan_port_rob_viaduct_gad

pages 2, 11, 12, 13

regional_terminology

no page list

Children (3)

• Circular Pier Shaft bridge.substructure.pier_system.pier_shaft.circular
• Rectangular Pier Shaft bridge.substructure.pier_system.pier_shaft.rectangular
• Hollow Pier Shaft bridge.substructure.pier_system.pier_shaft.hollow