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A Study on Seismic Behavior of Reinforced Concrete Arch Ribs
A Study on Seismic Behavior of Reinforced Concrete Arch Ribs
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152738
- ISBN
- 9798384448969
- DDC
- 620.11
- 서명/저자
- A Study on Seismic Behavior of Reinforced Concrete Arch Ribs
- 발행사항
- [Sl] : University of California, Berkeley, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 87 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-04, Section: A.
- 주기사항
- Advisor: Moehle, Jack P.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2024.
- 초록/해제
- 요약Reinforced concrete arch bridges face unique challenges due to high axial forces that can compromise their ductile flexure response under seismic conditions. Currently, arch bridges in California do not have any special design requirements despite their unique geometry. This dissertation, through experimental testing and numerical model analysis, evaluates the impact of axial loads on displacement capacity, compares it with the current Caltrans design requirements, and aims to recommend transverse reinforcement configurations and detailing for enhanced seismic performance.This dissertation is divided into three sections. The first section is an extensive experimental program consisting of nine 1/3 scale reinforced concrete specimens that replicate the critical region of a bridge arch rib. The represented bridges are arch bridges designed and constructed by the California Department of Transportation. The specimens were tested under moderate and high axial loads with increasing reversed cyclic displacement amplitudes. Observations of the physical tests are presented. Experimental results demonstrate that an increase in the volume of transverse reinforcement proportionally increases the deformation capacity; closer transverse reinforcement spacing is crucial for ensuring ductile behavior; and high axial force reduces the displacement ductility capacity of the member and produces severe damage in the core at large drifts. The second section describes how the physical test data was used to calibrate fiber models of an arch rib segment to perform a parametric study to investigate key variables such as section geometry, transverse reinforcement configuration, and axial force ratio. Results show consistency with the experimental data. Expressions to predict the ultimate drift capacity for circular-confined sections and square-confined sections are presented. The third section introduces a methodology to investigate the dynamic behavior of reinforced concrete arch bridges. Results of the proposed methodology include the development of fragility functions and engineering demand parameters hazard curves using hazard-consistent ground motions.
- 일반주제명
- Materials science
- 일반주제명
- Transportation
- 키워드
- Arch bridges
- 키워드
- Seismic design
- 키워드
- Dynamic behavior
- 기타저자
- University of California, Berkeley Civil and Environmental Engineering
- 기본자료저록
- Dissertations Abstracts International. 86-04A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017163666
■00520250211152738
■006m o d
■007cr#unu||||||||
■020 ▼a9798384448969
■035 ▼a(MiAaPQ)AAI31491559
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a620.11
■1001 ▼aDe la Mora Bayardo, Diego.
■24512▼aA Study on Seismic Behavior of Reinforced Concrete Arch Ribs
■260 ▼a[Sl]▼bUniversity of California, Berkeley▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a87 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-04, Section: A.
■500 ▼aAdvisor: Moehle, Jack P.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2024.
■520 ▼aReinforced concrete arch bridges face unique challenges due to high axial forces that can compromise their ductile flexure response under seismic conditions. Currently, arch bridges in California do not have any special design requirements despite their unique geometry. This dissertation, through experimental testing and numerical model analysis, evaluates the impact of axial loads on displacement capacity, compares it with the current Caltrans design requirements, and aims to recommend transverse reinforcement configurations and detailing for enhanced seismic performance.This dissertation is divided into three sections. The first section is an extensive experimental program consisting of nine 1/3 scale reinforced concrete specimens that replicate the critical region of a bridge arch rib. The represented bridges are arch bridges designed and constructed by the California Department of Transportation. The specimens were tested under moderate and high axial loads with increasing reversed cyclic displacement amplitudes. Observations of the physical tests are presented. Experimental results demonstrate that an increase in the volume of transverse reinforcement proportionally increases the deformation capacity; closer transverse reinforcement spacing is crucial for ensuring ductile behavior; and high axial force reduces the displacement ductility capacity of the member and produces severe damage in the core at large drifts. The second section describes how the physical test data was used to calibrate fiber models of an arch rib segment to perform a parametric study to investigate key variables such as section geometry, transverse reinforcement configuration, and axial force ratio. Results show consistency with the experimental data. Expressions to predict the ultimate drift capacity for circular-confined sections and square-confined sections are presented. The third section introduces a methodology to investigate the dynamic behavior of reinforced concrete arch bridges. Results of the proposed methodology include the development of fragility functions and engineering demand parameters hazard curves using hazard-consistent ground motions.
■590 ▼aSchool code: 0028.
■650 4▼aMaterials science
■650 4▼aTransportation
■653 ▼aArch bridges
■653 ▼aExperimental test
■653 ▼aReinforced concrete
■653 ▼aSeismic design
■653 ▼aDynamic behavior
■690 ▼a0543
■690 ▼a0794
■690 ▼a0709
■71020▼aUniversity of California, Berkeley▼bCivil and Environmental Engineering.
■7730 ▼tDissertations Abstracts International▼g86-04A.
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163666▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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