Evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis

Plate girders are typically formed by the built-up of I-shaped plates. It is vulnerable and weak in resisting buckling. In this study, FE analysis models were developed to evaluate the flexural performance of a hybrid composite post-tension (HCPt) plate girder. The HCPt plate girder is made of doubl...

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Main Authors: Al Mustawfi, Sahib, Safiee, Nor Azizi, Abu Bakar, Nabilah, Abd Karim, Izian, Mohd Nasir, Noor Azline
Format: Article
Published: Taylor and Francis Ltd. 2024
Online Access:http://psasir.upm.edu.my/id/eprint/112846/
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author Al Mustawfi, Sahib
Safiee, Nor Azizi
Abu Bakar, Nabilah
Abd Karim, Izian
Mohd Nasir, Noor Azline
author_facet Al Mustawfi, Sahib
Safiee, Nor Azizi
Abu Bakar, Nabilah
Abd Karim, Izian
Mohd Nasir, Noor Azline
author_sort Al Mustawfi, Sahib
building UPM Institutional Repository
collection Online Access
description Plate girders are typically formed by the built-up of I-shaped plates. It is vulnerable and weak in resisting buckling. In this study, FE analysis models were developed to evaluate the flexural performance of a hybrid composite post-tension (HCPt) plate girder. The HCPt plate girder is made of double-web and in-fill concrete with pre-stressed tendon to prevent shear web buckling and improve flexural resistance. The sensitivity of design parameters to the performance of the girder was also investigated through a parametric study using four different configurations. The selected parameters are span length, steel grade, concrete grade, and level of pre-stressed force. The statistical analysis was performed using linear multiple regression model to predict the girder’s flexural load and displacement. The results showed that web shear buckling was eliminated for models with in-fill concrete and pre-stressed tendon and failed by bending. Failure of the girder with double web was demonstrated by the combination of bending and web shear buckling. The concrete in-fill prevents the web plate from buckling and the beams generally fail in bending with high ductility. The load capacity of the hybrid composite plate girders with pre-stressing improved by 76% and 44% compared to conventional single-web plate girders and double-web plate girders, respectively. © 2024 Engineers Australia.
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spelling upm-1128462024-11-06T04:01:40Z http://psasir.upm.edu.my/id/eprint/112846/ Evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis Al Mustawfi, Sahib Safiee, Nor Azizi Abu Bakar, Nabilah Abd Karim, Izian Mohd Nasir, Noor Azline Plate girders are typically formed by the built-up of I-shaped plates. It is vulnerable and weak in resisting buckling. In this study, FE analysis models were developed to evaluate the flexural performance of a hybrid composite post-tension (HCPt) plate girder. The HCPt plate girder is made of double-web and in-fill concrete with pre-stressed tendon to prevent shear web buckling and improve flexural resistance. The sensitivity of design parameters to the performance of the girder was also investigated through a parametric study using four different configurations. The selected parameters are span length, steel grade, concrete grade, and level of pre-stressed force. The statistical analysis was performed using linear multiple regression model to predict the girder’s flexural load and displacement. The results showed that web shear buckling was eliminated for models with in-fill concrete and pre-stressed tendon and failed by bending. Failure of the girder with double web was demonstrated by the combination of bending and web shear buckling. The concrete in-fill prevents the web plate from buckling and the beams generally fail in bending with high ductility. The load capacity of the hybrid composite plate girders with pre-stressing improved by 76% and 44% compared to conventional single-web plate girders and double-web plate girders, respectively. © 2024 Engineers Australia. Taylor and Francis Ltd. 2024 Article PeerReviewed Al Mustawfi, Sahib and Safiee, Nor Azizi and Abu Bakar, Nabilah and Abd Karim, Izian and Mohd Nasir, Noor Azline (2024) Evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis. Australian Journal of Structural Engineering, 25 (4). pp. 351-369. ISSN 1328-7982 https://www.tandfonline.com/doi/full/10.1080/13287982.2024.2336360 10.1080/13287982.2024.2336360
spellingShingle Al Mustawfi, Sahib
Safiee, Nor Azizi
Abu Bakar, Nabilah
Abd Karim, Izian
Mohd Nasir, Noor Azline
Evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis
title Evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis
title_full Evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis
title_fullStr Evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis
title_full_unstemmed Evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis
title_short Evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis
title_sort evaluation on structural performance of hybrid composite post-tension plate girder through finite element analysis
url http://psasir.upm.edu.my/id/eprint/112846/
http://psasir.upm.edu.my/id/eprint/112846/
http://psasir.upm.edu.my/id/eprint/112846/