{"title":"带正弦腹板开口的伞形钢梁的侧向扭转屈曲行为：参数化研究","authors":"Rohit Rajendra Kurlapkar, Varun Jadhav, Ajinkya Hasabe","doi":"10.1007/s42107-025-01268-0","DOIUrl":null,"url":null,"abstract":"<div><p>This study presents a comprehensive numerical investigation into the lateral-torsional buckling behavior of castellated steel beams with sinusoidal openings, emphasizing the interaction of critical geometric and material parameters. A detailed Finite Element model was developed to analyze seventy-two beams, with variations in span length, steel grades (250 MPa, 460 MPa, and 690 MPa), web slenderness, and flange slenderness. The results demonstrate that higher steel grades significantly enhance both the load-carrying capacity and buckling resistance, underscoring the importance of material selection in structural performance. Furthermore, optimizing geometric parameters, such as flange-web slenderness ratios, was found to improve overall stability, with short-span beams exhibiting superior resistance to buckling compared to their long-span counterparts. These findings provide valuable insights into the behavior and design of castellated beams, offering a framework for enhancing structural efficiency and reliability in engineering applications.</p></div>","PeriodicalId":8513,"journal":{"name":"Asian Journal of Civil Engineering","volume":"26 4","pages":"1583 - 1594"},"PeriodicalIF":0.0000,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Lateral-torsional buckling behavior of castellated steel beams with sinusoidal web openings: a parametric study\",\"authors\":\"Rohit Rajendra Kurlapkar, Varun Jadhav, Ajinkya Hasabe\",\"doi\":\"10.1007/s42107-025-01268-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study presents a comprehensive numerical investigation into the lateral-torsional buckling behavior of castellated steel beams with sinusoidal openings, emphasizing the interaction of critical geometric and material parameters. A detailed Finite Element model was developed to analyze seventy-two beams, with variations in span length, steel grades (250 MPa, 460 MPa, and 690 MPa), web slenderness, and flange slenderness. The results demonstrate that higher steel grades significantly enhance both the load-carrying capacity and buckling resistance, underscoring the importance of material selection in structural performance. Furthermore, optimizing geometric parameters, such as flange-web slenderness ratios, was found to improve overall stability, with short-span beams exhibiting superior resistance to buckling compared to their long-span counterparts. These findings provide valuable insights into the behavior and design of castellated beams, offering a framework for enhancing structural efficiency and reliability in engineering applications.</p></div>\",\"PeriodicalId\":8513,\"journal\":{\"name\":\"Asian Journal of Civil Engineering\",\"volume\":\"26 4\",\"pages\":\"1583 - 1594\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-01-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Asian Journal of Civil Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s42107-025-01268-0\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Asian Journal of Civil Engineering","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s42107-025-01268-0","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}
Lateral-torsional buckling behavior of castellated steel beams with sinusoidal web openings: a parametric study
This study presents a comprehensive numerical investigation into the lateral-torsional buckling behavior of castellated steel beams with sinusoidal openings, emphasizing the interaction of critical geometric and material parameters. A detailed Finite Element model was developed to analyze seventy-two beams, with variations in span length, steel grades (250 MPa, 460 MPa, and 690 MPa), web slenderness, and flange slenderness. The results demonstrate that higher steel grades significantly enhance both the load-carrying capacity and buckling resistance, underscoring the importance of material selection in structural performance. Furthermore, optimizing geometric parameters, such as flange-web slenderness ratios, was found to improve overall stability, with short-span beams exhibiting superior resistance to buckling compared to their long-span counterparts. These findings provide valuable insights into the behavior and design of castellated beams, offering a framework for enhancing structural efficiency and reliability in engineering applications.
期刊介绍：
The Asian Journal of Civil Engineering (Building and Housing) welcomes articles and research contributions on topics such as:- Structural analysis and design - Earthquake and structural engineering - New building materials and concrete technology - Sustainable building and energy conservation - Housing and planning - Construction management - Optimal design of structuresPlease note that the journal will not accept papers in the area of hydraulic or geotechnical engineering, traffic/transportation or road making engineering, and on materials relevant to non-structural buildings, e.g. materials for road making and asphalt. Although the journal will publish authoritative papers on theoretical and experimental research works and advanced applications, it may also feature, when appropriate: a) tutorial survey type papers reviewing some fields of civil engineering; b) short communications and research notes; c) book reviews and conference announcements.
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