Overall Stability Behavior and Design Method of Q460 High Strength Steel Welded I-section Two-span Continuous Beam

In order to investigate the overall stability behavior of Q460 high strength steel welded I-section two-span continuous beam and develop the design method of such beams in codes, a finite element model considering residual stress was established by using ANSYS finite element program, and the model w...

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Main Authors: Jinyou ZHAO, Jiqiang YANG, Junming Wei, Na WEI
Format: Article
Language:English
Published: Editorial Office of Journal of Taiyuan University of Technology 2021-07-01
Series:Taiyuan Ligong Daxue xuebao
Subjects:
Online Access:https://tyutjournal.tyut.edu.cn/englishpaper/show-385.html
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author Jinyou ZHAO
Jiqiang YANG
Junming Wei
Na WEI
author_facet Jinyou ZHAO
Jiqiang YANG
Junming Wei
Na WEI
author_sort Jinyou ZHAO
collection DOAJ
description In order to investigate the overall stability behavior of Q460 high strength steel welded I-section two-span continuous beam and develop the design method of such beams in codes, a finite element model considering residual stress was established by using ANSYS finite element program, and the model was verified on the basis of experimental data of Q345 steel two-span continuous beam. With the finite element model verified by experiment, the overall stability behaviors were investigated by changing the residual stress distribution model, span ratio, steel strength, section height-width ratio, and loading ratio. According to the finite element analysis results, the formula of elastic critical moment was regressed. Furthermore, the elastic critical moments obtained through the above formula were substituted into the overall stability factor formula in the specification for design of high strength steel structures (JGJ/T 483-2020)to obtain overall stability factor, which was compared with that obtained by finite element analysis. The comparison results indicate that the above method is suitable for the overall stability design of Q460 high strength steel two-span continuous beam.
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spelling doaj.art-a2022b3397f940f8ae7053f645c9dfc42024-04-09T08:04:04ZengEditorial Office of Journal of Taiyuan University of TechnologyTaiyuan Ligong Daxue xuebao1007-94322021-07-0152462062910.16355/j.cnki.issn1007-9432tyut.2021.04.0161007-9432(2021)04-0620-10Overall Stability Behavior and Design Method of Q460 High Strength Steel Welded I-section Two-span Continuous BeamJinyou ZHAO0Jiqiang YANG1Junming Wei2Na WEI3School of Civil Engineering, Northeast Forestry University, Harbin 150040, ChinaSchool of Civil Engineering, Northeast Forestry University, Harbin 150040, ChinaSchool of Civil Engineering, Northeast Forestry University, Harbin 150040, ChinaSchool of Civil Engineering, Northeast Forestry University, Harbin 150040, ChinaIn order to investigate the overall stability behavior of Q460 high strength steel welded I-section two-span continuous beam and develop the design method of such beams in codes, a finite element model considering residual stress was established by using ANSYS finite element program, and the model was verified on the basis of experimental data of Q345 steel two-span continuous beam. With the finite element model verified by experiment, the overall stability behaviors were investigated by changing the residual stress distribution model, span ratio, steel strength, section height-width ratio, and loading ratio. According to the finite element analysis results, the formula of elastic critical moment was regressed. Furthermore, the elastic critical moments obtained through the above formula were substituted into the overall stability factor formula in the specification for design of high strength steel structures (JGJ/T 483-2020)to obtain overall stability factor, which was compared with that obtained by finite element analysis. The comparison results indicate that the above method is suitable for the overall stability design of Q460 high strength steel two-span continuous beam.https://tyutjournal.tyut.edu.cn/englishpaper/show-385.htmlq460 high strength steeltwo-span continuous beamsoverall stability behaviordesign methodelastic critical moment
spellingShingle Jinyou ZHAO
Jiqiang YANG
Junming Wei
Na WEI
Overall Stability Behavior and Design Method of Q460 High Strength Steel Welded I-section Two-span Continuous Beam
Taiyuan Ligong Daxue xuebao
q460 high strength steel
two-span continuous beams
overall stability behavior
design method
elastic critical moment
title Overall Stability Behavior and Design Method of Q460 High Strength Steel Welded I-section Two-span Continuous Beam
title_full Overall Stability Behavior and Design Method of Q460 High Strength Steel Welded I-section Two-span Continuous Beam
title_fullStr Overall Stability Behavior and Design Method of Q460 High Strength Steel Welded I-section Two-span Continuous Beam
title_full_unstemmed Overall Stability Behavior and Design Method of Q460 High Strength Steel Welded I-section Two-span Continuous Beam
title_short Overall Stability Behavior and Design Method of Q460 High Strength Steel Welded I-section Two-span Continuous Beam
title_sort overall stability behavior and design method of q460 high strength steel welded i section two span continuous beam
topic q460 high strength steel
two-span continuous beams
overall stability behavior
design method
elastic critical moment
url https://tyutjournal.tyut.edu.cn/englishpaper/show-385.html
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AT jiqiangyang overallstabilitybehavioranddesignmethodofq460highstrengthsteelweldedisectiontwospancontinuousbeam
AT junmingwei overallstabilitybehavioranddesignmethodofq460highstrengthsteelweldedisectiontwospancontinuousbeam
AT nawei overallstabilitybehavioranddesignmethodofq460highstrengthsteelweldedisectiontwospancontinuousbeam