Static Characteristics of Improved Composite Box Girder with Corrugated Steel Webs

In order to accurately calculate the cross-sectional stresses and deflections of the improved composite box girder with corrugated steel webs, the control differential equations and boundary conditions are established based on the energy variational principle, taking into account the effects of corr...

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Main Authors: Shijin Wang, Genhui Wang, Zichen Zhang
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2022/3205521
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author Shijin Wang
Genhui Wang
Zichen Zhang
author_facet Shijin Wang
Genhui Wang
Zichen Zhang
author_sort Shijin Wang
collection DOAJ
description In order to accurately calculate the cross-sectional stresses and deflections of the improved composite box girder with corrugated steel webs, the control differential equations and boundary conditions are established based on the energy variational principle, taking into account the effects of corrugated steel web properties, shear lag, and shear deformation. A cantilever composite box girder is used as a numerical example. The influence of width span ratio and corrugated steel web bending angle on the shear lag and fold effect is analyzed. The results show that the analytical solution is in good agreement with the finite element solution. A shear lag effect and a negative shear lag effect exist in the cantilever composite box girder under uniform load. The fold effect under concentrated load has a greater influence on the mechanical properties of the wing plate than under uniform load. With the increase of the width span ratio, the effects of both shear lag and fold effect increases. With the increase of the corrugated steel web bending angle, the fold effect is obviously enhanced, but the change of the bending angle has little effect on the shear lag effect.
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issn 1687-8094
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series Advances in Civil Engineering
spelling doaj-art-41307658171a48a4a2328e1d8895c6f02025-02-03T01:22:53ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/3205521Static Characteristics of Improved Composite Box Girder with Corrugated Steel WebsShijin Wang0Genhui Wang1Zichen Zhang2School of Civil EngineeringSchool of Civil EngineeringSchool of Civil EngineeringIn order to accurately calculate the cross-sectional stresses and deflections of the improved composite box girder with corrugated steel webs, the control differential equations and boundary conditions are established based on the energy variational principle, taking into account the effects of corrugated steel web properties, shear lag, and shear deformation. A cantilever composite box girder is used as a numerical example. The influence of width span ratio and corrugated steel web bending angle on the shear lag and fold effect is analyzed. The results show that the analytical solution is in good agreement with the finite element solution. A shear lag effect and a negative shear lag effect exist in the cantilever composite box girder under uniform load. The fold effect under concentrated load has a greater influence on the mechanical properties of the wing plate than under uniform load. With the increase of the width span ratio, the effects of both shear lag and fold effect increases. With the increase of the corrugated steel web bending angle, the fold effect is obviously enhanced, but the change of the bending angle has little effect on the shear lag effect.http://dx.doi.org/10.1155/2022/3205521
spellingShingle Shijin Wang
Genhui Wang
Zichen Zhang
Static Characteristics of Improved Composite Box Girder with Corrugated Steel Webs
Advances in Civil Engineering
title Static Characteristics of Improved Composite Box Girder with Corrugated Steel Webs
title_full Static Characteristics of Improved Composite Box Girder with Corrugated Steel Webs
title_fullStr Static Characteristics of Improved Composite Box Girder with Corrugated Steel Webs
title_full_unstemmed Static Characteristics of Improved Composite Box Girder with Corrugated Steel Webs
title_short Static Characteristics of Improved Composite Box Girder with Corrugated Steel Webs
title_sort static characteristics of improved composite box girder with corrugated steel webs
url http://dx.doi.org/10.1155/2022/3205521
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