Research on calculation of transverse bending moment of deck of box girder with long-span and long cantilever

Abstract To investigate the reasonable calculation value of the transverse design bending moment of a long-span cantilever box girder bridge deck under vehicle load, the plate beam model and beam element frame model were established according to the concept of load effective distribution width in th...

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Main Authors: Zhaonan Wang, Ruizheng Wang
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-87723-z
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author Zhaonan Wang
Ruizheng Wang
author_facet Zhaonan Wang
Ruizheng Wang
author_sort Zhaonan Wang
collection DOAJ
description Abstract To investigate the reasonable calculation value of the transverse design bending moment of a long-span cantilever box girder bridge deck under vehicle load, the plate beam model and beam element frame model were established according to the concept of load effective distribution width in the Chinese highway specifications. The local finite element model and full bridge model of a long-cantilever plate were established using the plate-shell element. The practical calculation formula and finite element analysis of the transverse bending moment of a bridge deck were studied. The results showed that the transverse bending moment of the long-cantilever plate calculated using Baider Bahkt formula slightly deviated from the calculated value of the plate-shell element, and the deviation between the calculated values of Baider Bahkt formula and Sawko formula was 7.72%. Baider Bahkt formula is more accurate than Sawko formula, which is recommended by the Chinese highway specifications.
format Article
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institution Kabale University
issn 2045-2322
language English
publishDate 2025-01-01
publisher Nature Portfolio
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series Scientific Reports
spelling doaj-art-7b210bbff1054f5abeb14a3e578c67cd2025-02-02T12:20:17ZengNature PortfolioScientific Reports2045-23222025-01-0115111410.1038/s41598-025-87723-zResearch on calculation of transverse bending moment of deck of box girder with long-span and long cantileverZhaonan Wang0Ruizheng Wang1Department of Civil Engineering, Lanzhou City UniversitySchool of Civil Engineering, Lanzhou Jiaotong UniversityAbstract To investigate the reasonable calculation value of the transverse design bending moment of a long-span cantilever box girder bridge deck under vehicle load, the plate beam model and beam element frame model were established according to the concept of load effective distribution width in the Chinese highway specifications. The local finite element model and full bridge model of a long-cantilever plate were established using the plate-shell element. The practical calculation formula and finite element analysis of the transverse bending moment of a bridge deck were studied. The results showed that the transverse bending moment of the long-cantilever plate calculated using Baider Bahkt formula slightly deviated from the calculated value of the plate-shell element, and the deviation between the calculated values of Baider Bahkt formula and Sawko formula was 7.72%. Baider Bahkt formula is more accurate than Sawko formula, which is recommended by the Chinese highway specifications.https://doi.org/10.1038/s41598-025-87723-zBridge engineeringTransverse bending momentLong cantilever plateWheel load effective distribution widthVehicle load
spellingShingle Zhaonan Wang
Ruizheng Wang
Research on calculation of transverse bending moment of deck of box girder with long-span and long cantilever
Scientific Reports
Bridge engineering
Transverse bending moment
Long cantilever plate
Wheel load effective distribution width
Vehicle load
title Research on calculation of transverse bending moment of deck of box girder with long-span and long cantilever
title_full Research on calculation of transverse bending moment of deck of box girder with long-span and long cantilever
title_fullStr Research on calculation of transverse bending moment of deck of box girder with long-span and long cantilever
title_full_unstemmed Research on calculation of transverse bending moment of deck of box girder with long-span and long cantilever
title_short Research on calculation of transverse bending moment of deck of box girder with long-span and long cantilever
title_sort research on calculation of transverse bending moment of deck of box girder with long span and long cantilever
topic Bridge engineering
Transverse bending moment
Long cantilever plate
Wheel load effective distribution width
Vehicle load
url https://doi.org/10.1038/s41598-025-87723-z
work_keys_str_mv AT zhaonanwang researchoncalculationoftransversebendingmomentofdeckofboxgirderwithlongspanandlongcantilever
AT ruizhengwang researchoncalculationoftransversebendingmomentofdeckofboxgirderwithlongspanandlongcantilever