{"title":"格构式钢管混凝土球板节点四肢柱风力发电机塔架应力性能研究","authors":"Miao Li, Wenhui Zhang, Hongbao Wang, Yang Wen","doi":"10.1016/j.asej.2024.102960","DOIUrl":null,"url":null,"abstract":"<div><p>Two laboratory-scale steel tube and concrete four-leg lattice prototypes were designed for use as wind turbine towers using optimized gimbaled wrapped ball-sheet- type nodes. Repeated load tests were performed on the prototype tower for several weeks to evaluate its damage modes, strength, stiffness, etc., and the numerical simulation was conducted. The results showed that the damage mainly included strength damage to the pylon, flexural damage to the top cross web and cracks at the bottom of the loading plate welded to the steel pipe. In addition, the web-tower stiffness ratio and ultimate bearing capacity of the tower improved to varying degrees. It is recommended that the web-tower stiffness ratio be between 0.05 and 0.07. When the connection between the ball column and the node plate changes from a high-strength bolt connection to a welded connection, the ultimate load-carrying capacity of the tower model increases by an average of approximately 8%.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"15 10","pages":"Article 102960"},"PeriodicalIF":6.0000,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924003356/pdfft?md5=3798189da745917d1ecbb3ce61d5fbc1&pid=1-s2.0-S2090447924003356-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Research on the stress performance of lattice-type steel-tube-concrete ball-slab node four-limbed column wind turbine towers\",\"authors\":\"Miao Li, Wenhui Zhang, Hongbao Wang, Yang Wen\",\"doi\":\"10.1016/j.asej.2024.102960\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Two laboratory-scale steel tube and concrete four-leg lattice prototypes were designed for use as wind turbine towers using optimized gimbaled wrapped ball-sheet- type nodes. Repeated load tests were performed on the prototype tower for several weeks to evaluate its damage modes, strength, stiffness, etc., and the numerical simulation was conducted. The results showed that the damage mainly included strength damage to the pylon, flexural damage to the top cross web and cracks at the bottom of the loading plate welded to the steel pipe. In addition, the web-tower stiffness ratio and ultimate bearing capacity of the tower improved to varying degrees. It is recommended that the web-tower stiffness ratio be between 0.05 and 0.07. When the connection between the ball column and the node plate changes from a high-strength bolt connection to a welded connection, the ultimate load-carrying capacity of the tower model increases by an average of approximately 8%.</p></div>\",\"PeriodicalId\":48648,\"journal\":{\"name\":\"Ain Shams Engineering Journal\",\"volume\":\"15 10\",\"pages\":\"Article 102960\"},\"PeriodicalIF\":6.0000,\"publicationDate\":\"2024-07-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2090447924003356/pdfft?md5=3798189da745917d1ecbb3ce61d5fbc1&pid=1-s2.0-S2090447924003356-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ain Shams Engineering Journal\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2090447924003356\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ain Shams Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2090447924003356","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
Research on the stress performance of lattice-type steel-tube-concrete ball-slab node four-limbed column wind turbine towers
Two laboratory-scale steel tube and concrete four-leg lattice prototypes were designed for use as wind turbine towers using optimized gimbaled wrapped ball-sheet- type nodes. Repeated load tests were performed on the prototype tower for several weeks to evaluate its damage modes, strength, stiffness, etc., and the numerical simulation was conducted. The results showed that the damage mainly included strength damage to the pylon, flexural damage to the top cross web and cracks at the bottom of the loading plate welded to the steel pipe. In addition, the web-tower stiffness ratio and ultimate bearing capacity of the tower improved to varying degrees. It is recommended that the web-tower stiffness ratio be between 0.05 and 0.07. When the connection between the ball column and the node plate changes from a high-strength bolt connection to a welded connection, the ultimate load-carrying capacity of the tower model increases by an average of approximately 8%.
期刊介绍：
in Shams Engineering Journal is an international journal devoted to publication of peer reviewed original high-quality research papers and review papers in both traditional topics and those of emerging science and technology. Areas of both theoretical and fundamental interest as well as those concerning industrial applications, emerging instrumental techniques and those which have some practical application to an aspect of human endeavor, such as the preservation of the environment, health, waste disposal are welcome. The overall focus is on original and rigorous scientific research results which have generic significance.
Ain Shams Engineering Journal focuses upon aspects of mechanical engineering, electrical engineering, civil engineering, chemical engineering, petroleum engineering, environmental engineering, architectural and urban planning engineering. Papers in which knowledge from other disciplines is integrated with engineering are especially welcome like nanotechnology, material sciences, and computational methods as well as applied basic sciences: engineering mathematics, physics and chemistry.
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