Numerical Study of Prestressed Concrete Girder-Deck System with Variable Reinforcement and Span-depth Ratios

Research output: Chapter in Book/Entry/PoemConference contribution

Abstract

AASHTO Type III prestressed girder is one of the most widely used girder types to carry highway bridge decks. However, very few quantitative studies have been conducted to study the effect of span-to-depth ratio (L/d) on flexural behavior of AASHTO Type III prestressed girder-deck system via finite element analysis. This paper presents the results of numerical analysis investigating the effect of two primary variables (reinforcement ratio and span-to-depth ratio) on the flexural properties of AASHTO Type III prestressed girder using finite element software Abaqus. A detailed finite element analysis (FEA) model was developed and verified against the relevant experimental data performed by other researchers. The analytical results showed good agreement with the experimental results. Based on the verified FE model, analyses were performed using variables including three critical span-to-depth ratios (L/d) of 10, 15 and 20 and prestressing reinforcement ratios (ρ%) of 0.101, 0.126 and 0.151. Ultimate strength, stiffness, and ductility of the prestressed Type III girder were investigated. The nonlinear finite element results demonstrated that different span-to-depth ratios can significantly affect flexural performance. It was found that a higher span-to-depth ratio has a lower stiffness and ultimate strength than a lower span-to depth ratio. However, the ductility decreases with the increase of the span-to-depth ratio. In addition, under the effect of prestressing reinforcement ratio, the impact of span-to-depth ratio on flexural performance increases.

Original languageEnglish (US)
Title of host publicationProceedings of The 17th East Asian-Pacific Conference on Structural Engineering and Construction, 2022 - EASEC-17
EditorsGuoqing Geng, Xudong Qian, Leong Hien Poh, Sze Dai Pang
PublisherSpringer Science and Business Media Deutschland GmbH
Pages1387-1400
Number of pages14
ISBN (Print)9789811973307
DOIs
StatePublished - 2023
Externally publishedYes
Event17th East Asian-Pacific Conference on Structural Engineering and Construction, EASEC-17 2022 - Virtual, Online
Duration: Jun 27 2022Jun 30 2022

Publication series

NameLecture Notes in Civil Engineering
Volume302 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference17th East Asian-Pacific Conference on Structural Engineering and Construction, EASEC-17 2022
CityVirtual, Online
Period6/27/226/30/22

Keywords

  • Abaqus
  • Finite element analysis
  • Flexural strength
  • Prestressed girders
  • Span-to-depth ratio

ASJC Scopus subject areas

  • Civil and Structural Engineering

Fingerprint

Dive into the research topics of 'Numerical Study of Prestressed Concrete Girder-Deck System with Variable Reinforcement and Span-depth Ratios'. Together they form a unique fingerprint.

Cite this