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原文传递 Large-Scale Bending Tests of Slender Tapered Spirally Welded Steel Tubes
题名: Large-Scale Bending Tests of Slender Tapered Spirally Welded Steel Tubes
其他题名: AISC(American Institute of Steel Construction).(2011)."AISC steel construction manual."Chicago.
正文语种: 英文
作者: Angelina Jay
关键词: Local buckling;Flexural strength;Imperfections;Large-scale testing;Spiral welds;Slender shells;Metal and composite structures
摘要: A new manufacturing process allows for the production of tapered spirally welded steel tubes. This paper describes a series of eight large-scale tests examining the behavior of such tubes in flexure and investigates the impact of imperfections on the flexural strength of the tube. The tests are performed on tapered circular steel tubes with diameters between 0.7 and 1.1 m and maximum diameter-to-thickness ratios between 200 and 350. Specimen geometries are selected to provide flexural test data at slenderness ratios not commonly tested in the literature and to be representative of tapered tubes applied as wind turbine towers. The geometries of the specimens are measured with laser scanners before and during testing to characterize initial imperfections and the evolution of local buckling. Results are compared to design strengths per Eurocode EN 1993 1-6. All specimens meeting Eurocode manufacturing quality requirements exceed predicted strengths. The location and orientation of the local buckling region are correlated with the spiral seam welds on the specimens.
出版年: 2016
论文唯一标识: P-26Y2016V142N12022
英文栏目名称: TECHNICAL PAPERS
doi: 10.1061/(ASCE)ST.1943-541X.0001605
期刊名称: Journal of Structural Engineering
拼音刊名(出版物代码): P-26
卷: 142
期: 12
页码: 242-251
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