Ductility evaluation of concrete-encased steel bridge piers subjected to lateral cyclic loading

Hideki Naito, Mitsuyoshi Akiyama, Motoyuki Suzuki

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

An experimental and analytical study was conducted to investigate the ductility of concrete-encased steel piers, referred to as "steel-reinforced concrete (SRC) construction." Based on the cyclic lateral loading tests of SRC column specimens, the restorable and ultimate limit states are defined as the point when concrete cover spalling occurs (equivalent to longitudinal bar buckling) and the point when flange buckling of the H-shaped steel occurs, respectively. To estimate the lateral displacement capacity at both the restorable and ultimate limit states, the curvature distribution of the column was calculated based on the buckling analysis of the longitudinal bar, which was restrained by a concrete cover and transverse reinforcement, and of the steel flange encased in concrete. The lateral displacement was obtained by integrating the curvature distribution. Comparison of the computed results with experimental results, including other writers' reports, confirmed that the proposed method can appropriately estimate the lateral displacement at the restorable and ultimate limit states, and it can accurately evaluate the buckling characteristics of the longitudinal bar and steel flange components of SRC column specimens.

Original languageEnglish
Pages (from-to)72-81
Number of pages10
JournalJournal of Bridge Engineering
Volume16
Issue number1
DOIs
Publication statusPublished - 2011 Jan
Externally publishedYes

Fingerprint

Bridge piers
Steel bridges
Concrete bridges
Ductility
Steel
Buckling
Flanges
Concretes
Reinforced concrete
Spalling
Piers
Concrete construction
Reinforcement

Keywords

  • Buckling
  • Composite columns
  • Cyclic loads
  • Damage
  • Ductility

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

Cite this

Ductility evaluation of concrete-encased steel bridge piers subjected to lateral cyclic loading. / Naito, Hideki; Akiyama, Mitsuyoshi; Suzuki, Motoyuki.

In: Journal of Bridge Engineering, Vol. 16, No. 1, 01.2011, p. 72-81.

Research output: Contribution to journalArticle

@article{d0c7db026eb14e84a476f32d82a8a057,
title = "Ductility evaluation of concrete-encased steel bridge piers subjected to lateral cyclic loading",
abstract = "An experimental and analytical study was conducted to investigate the ductility of concrete-encased steel piers, referred to as {"}steel-reinforced concrete (SRC) construction.{"} Based on the cyclic lateral loading tests of SRC column specimens, the restorable and ultimate limit states are defined as the point when concrete cover spalling occurs (equivalent to longitudinal bar buckling) and the point when flange buckling of the H-shaped steel occurs, respectively. To estimate the lateral displacement capacity at both the restorable and ultimate limit states, the curvature distribution of the column was calculated based on the buckling analysis of the longitudinal bar, which was restrained by a concrete cover and transverse reinforcement, and of the steel flange encased in concrete. The lateral displacement was obtained by integrating the curvature distribution. Comparison of the computed results with experimental results, including other writers' reports, confirmed that the proposed method can appropriately estimate the lateral displacement at the restorable and ultimate limit states, and it can accurately evaluate the buckling characteristics of the longitudinal bar and steel flange components of SRC column specimens.",
keywords = "Buckling, Composite columns, Cyclic loads, Damage, Ductility",
author = "Hideki Naito and Mitsuyoshi Akiyama and Motoyuki Suzuki",
year = "2011",
month = "1",
doi = "10.1061/(ASCE)BE.1943-5592.0000120",
language = "English",
volume = "16",
pages = "72--81",
journal = "Journal of Bridge Engineering",
issn = "1084-0702",
publisher = "American Society of Civil Engineers (ASCE)",
number = "1",

}

TY - JOUR

T1 - Ductility evaluation of concrete-encased steel bridge piers subjected to lateral cyclic loading

AU - Naito, Hideki

AU - Akiyama, Mitsuyoshi

AU - Suzuki, Motoyuki

PY - 2011/1

Y1 - 2011/1

N2 - An experimental and analytical study was conducted to investigate the ductility of concrete-encased steel piers, referred to as "steel-reinforced concrete (SRC) construction." Based on the cyclic lateral loading tests of SRC column specimens, the restorable and ultimate limit states are defined as the point when concrete cover spalling occurs (equivalent to longitudinal bar buckling) and the point when flange buckling of the H-shaped steel occurs, respectively. To estimate the lateral displacement capacity at both the restorable and ultimate limit states, the curvature distribution of the column was calculated based on the buckling analysis of the longitudinal bar, which was restrained by a concrete cover and transverse reinforcement, and of the steel flange encased in concrete. The lateral displacement was obtained by integrating the curvature distribution. Comparison of the computed results with experimental results, including other writers' reports, confirmed that the proposed method can appropriately estimate the lateral displacement at the restorable and ultimate limit states, and it can accurately evaluate the buckling characteristics of the longitudinal bar and steel flange components of SRC column specimens.

AB - An experimental and analytical study was conducted to investigate the ductility of concrete-encased steel piers, referred to as "steel-reinforced concrete (SRC) construction." Based on the cyclic lateral loading tests of SRC column specimens, the restorable and ultimate limit states are defined as the point when concrete cover spalling occurs (equivalent to longitudinal bar buckling) and the point when flange buckling of the H-shaped steel occurs, respectively. To estimate the lateral displacement capacity at both the restorable and ultimate limit states, the curvature distribution of the column was calculated based on the buckling analysis of the longitudinal bar, which was restrained by a concrete cover and transverse reinforcement, and of the steel flange encased in concrete. The lateral displacement was obtained by integrating the curvature distribution. Comparison of the computed results with experimental results, including other writers' reports, confirmed that the proposed method can appropriately estimate the lateral displacement at the restorable and ultimate limit states, and it can accurately evaluate the buckling characteristics of the longitudinal bar and steel flange components of SRC column specimens.

KW - Buckling

KW - Composite columns

KW - Cyclic loads

KW - Damage

KW - Ductility

UR - http://www.scopus.com/inward/record.url?scp=78650399572&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650399572&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)BE.1943-5592.0000120

DO - 10.1061/(ASCE)BE.1943-5592.0000120

M3 - Article

AN - SCOPUS:78650399572

VL - 16

SP - 72

EP - 81

JO - Journal of Bridge Engineering

JF - Journal of Bridge Engineering

SN - 1084-0702

IS - 1

ER -