Effect of Confinement on the Axial Load Response of Ultrahigh-Strength Concrete Columns
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shin, H. O. | - |
dc.contributor.author | Yoon, Y. S. | - |
dc.contributor.author | Cook, W. D. | - |
dc.contributor.author | Mitchell, D. | - |
dc.date.accessioned | 2021-09-04T15:31:46Z | - |
dc.date.available | 2021-09-04T15:31:46Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2015-06 | - |
dc.identifier.issn | 0733-9445 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/93398 | - |
dc.description.abstract | Twelve ultrahigh-strength concrete (UHSC) columns confined by rectangular hoops and crossties were constructed and tested under pure axial load. Primary variables of the investigation were the amount, spacing, and configuration of transverse reinforcement, and concrete compressive strength, ranging from 50 to 200MPa. The amount of transverse reinforcement ranged from 53 to 151% of that required by the American Concrete Institute (ACI) seismic design provisions. Four different configurations of transverse reinforcement were investigated that included hoops as well as hoops and crossties. The behavior of UHSC columns are characterized by sudden spalling of the concrete cover and extremely brittle failure unless the columns are adequately confined with transverse reinforcement. Therefore, more confinement is required in a column with higher concrete strength than in a column with lower concrete strength to achieve a reasonable postpeak response and sufficient deformability. The amount of transverse reinforcement has a pronounced effect on the postpeak behavior of UHSC columns. It is concluded that the ACI provisions overestimate the maximum axial load by 8-21%; however, the seismic design provisions provide for significant postpeak response of the UHSC columns in this test series. A design expression is proposed for the amount of seismic confinement for 200MPa UHSC columns, based on the effective confinement index. (C) 2014 American Society of Civil Engineers. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ASCE-AMER SOC CIVIL ENGINEERS | - |
dc.subject | STRESS-STRAIN MODEL | - |
dc.subject | CONCENTRIC COMPRESSION | - |
dc.subject | TIED COLUMNS | - |
dc.subject | DUCTILITY | - |
dc.title | Effect of Confinement on the Axial Load Response of Ultrahigh-Strength Concrete Columns | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yoon, Y. S. | - |
dc.identifier.doi | 10.1061/(ASCE)ST.1943-541X.0001106 | - |
dc.identifier.scopusid | 2-s2.0-84988231389 | - |
dc.identifier.wosid | 000354549300007 | - |
dc.identifier.bibliographicCitation | JOURNAL OF STRUCTURAL ENGINEERING, v.141, no.6 | - |
dc.relation.isPartOf | JOURNAL OF STRUCTURAL ENGINEERING | - |
dc.citation.title | JOURNAL OF STRUCTURAL ENGINEERING | - |
dc.citation.volume | 141 | - |
dc.citation.number | 6 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Construction & Building Technology | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Construction & Building Technology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Civil | - |
dc.subject.keywordPlus | STRESS-STRAIN MODEL | - |
dc.subject.keywordPlus | CONCENTRIC COMPRESSION | - |
dc.subject.keywordPlus | TIED COLUMNS | - |
dc.subject.keywordPlus | DUCTILITY | - |
dc.subject.keywordAuthor | Concrete columns | - |
dc.subject.keywordAuthor | Confinement | - |
dc.subject.keywordAuthor | Seismic design | - |
dc.subject.keywordAuthor | Axial loads | - |
dc.subject.keywordAuthor | High-strength concrete | - |
dc.subject.keywordAuthor | Ultrahigh-strength concrete column | - |
dc.subject.keywordAuthor | Hoops | - |
dc.subject.keywordAuthor | Crossties | - |
dc.subject.keywordAuthor | Transverse reinforcement | - |
dc.subject.keywordAuthor | Post-peak response | - |
dc.subject.keywordAuthor | Concrete and masonry structures | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.