{"title":"桁架钢管混凝土混合结构在弯曲作用下的性能与计算","authors":"Zhan-Shuo Liang , Lin-Hai Han , Pu Wang","doi":"10.1016/j.engstruct.2024.119478","DOIUrl":null,"url":null,"abstract":"<div><div>Experiments were conducted on 7 trussed concrete-filled steel tubular (CFST) hybrid structures subjected to pure bending, cross-sectional shape of chords, web types, yield strength of chord steel tube, and shear span ratio are the main parameters considered in the experimental work. Furthermore, the effects of these parameters on the flexural performance of the trussed structures were elucidated, and the load-strain relation and typical failure modes were summarized. A finite element analysis (FEA) modelling for trussed CFST hybrid structure subjected to bending was established and validated, the structural internal forces and stress distribution were revealed, and the criteria for determining the ultimate limit state was proposed. Based on parameter analysis, the key parameters affecting the flexural performance of the structure were determined, thereby the shear control factor was proposed. Finally, simplified calculating method for the bending resistance and the corresponding construction recommendations of trussed CFST hybrid structures were proposed.</div></div>","PeriodicalId":11763,"journal":{"name":"Engineering Structures","volume":"325 ","pages":"Article 119478"},"PeriodicalIF":6.4000,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Performance and calculation of trussed concrete-filled steel tubular (CFST) hybrid structures subjected to bending\",\"authors\":\"Zhan-Shuo Liang , Lin-Hai Han , Pu Wang\",\"doi\":\"10.1016/j.engstruct.2024.119478\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Experiments were conducted on 7 trussed concrete-filled steel tubular (CFST) hybrid structures subjected to pure bending, cross-sectional shape of chords, web types, yield strength of chord steel tube, and shear span ratio are the main parameters considered in the experimental work. Furthermore, the effects of these parameters on the flexural performance of the trussed structures were elucidated, and the load-strain relation and typical failure modes were summarized. A finite element analysis (FEA) modelling for trussed CFST hybrid structure subjected to bending was established and validated, the structural internal forces and stress distribution were revealed, and the criteria for determining the ultimate limit state was proposed. Based on parameter analysis, the key parameters affecting the flexural performance of the structure were determined, thereby the shear control factor was proposed. Finally, simplified calculating method for the bending resistance and the corresponding construction recommendations of trussed CFST hybrid structures were proposed.</div></div>\",\"PeriodicalId\":11763,\"journal\":{\"name\":\"Engineering Structures\",\"volume\":\"325 \",\"pages\":\"Article 119478\"},\"PeriodicalIF\":6.4000,\"publicationDate\":\"2025-02-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Engineering Structures\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0141029624020406\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/12/14 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0141029624020406","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/12/14 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
Performance and calculation of trussed concrete-filled steel tubular (CFST) hybrid structures subjected to bending
Experiments were conducted on 7 trussed concrete-filled steel tubular (CFST) hybrid structures subjected to pure bending, cross-sectional shape of chords, web types, yield strength of chord steel tube, and shear span ratio are the main parameters considered in the experimental work. Furthermore, the effects of these parameters on the flexural performance of the trussed structures were elucidated, and the load-strain relation and typical failure modes were summarized. A finite element analysis (FEA) modelling for trussed CFST hybrid structure subjected to bending was established and validated, the structural internal forces and stress distribution were revealed, and the criteria for determining the ultimate limit state was proposed. Based on parameter analysis, the key parameters affecting the flexural performance of the structure were determined, thereby the shear control factor was proposed. Finally, simplified calculating method for the bending resistance and the corresponding construction recommendations of trussed CFST hybrid structures were proposed.
期刊介绍：
Engineering Structures provides a forum for a broad blend of scientific and technical papers to reflect the evolving needs of the structural engineering and structural mechanics communities. Particularly welcome are contributions dealing with applications of structural engineering and mechanics principles in all areas of technology. The journal aspires to a broad and integrated coverage of the effects of dynamic loadings and of the modelling techniques whereby the structural response to these loadings may be computed.
The scope of Engineering Structures encompasses, but is not restricted to, the following areas: infrastructure engineering; earthquake engineering; structure-fluid-soil interaction; wind engineering; fire engineering; blast engineering; structural reliability/stability; life assessment/integrity; structural health monitoring; multi-hazard engineering; structural dynamics; optimization; expert systems; experimental modelling; performance-based design; multiscale analysis; value engineering.
Topics of interest include: tall buildings; innovative structures; environmentally responsive structures; bridges; stadiums; commercial and public buildings; transmission towers; television and telecommunication masts; foldable structures; cooling towers; plates and shells; suspension structures; protective structures; smart structures; nuclear reactors; dams; pressure vessels; pipelines; tunnels.
Engineering Structures also publishes review articles, short communications and discussions, book reviews, and a diary on international events related to any aspect of structural engineering.
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