EXPERIMENTAL RESEARCH ON BENDING BEHAVIOR OF ALUMINUM ALLOY BEAMS WITH RECTANGULAR SECTION
-
摘要: 为研究矩形截面铝合金梁的受弯性能,对剪跨比为1.5、2、2.5的9根铝合金梁进行单调加载试验,分析各试件的典型破坏形态、荷载-挠度曲线和峰值荷载,对比其极限承载力计算值和实测结果。研究表明:随着剪跨比的增加,各试件的极限承载力逐渐降低,其跨中对应挠度逐渐增加;各试件极限承载力计算值与实测结果基本吻合;随着剪跨比的增加,试件由剪切变形为主向受弯变形为主转变。Abstract: In order to study the bending behavior of aluminum alloy beams with rectangular section, monotonic loading tests were carried out on 9 aluminum alloy beams with shear-span ratios of 1.5, 2 and 2.5 in the paper. Typical failure models, load-deflection curves and peak loads of each specimen were analyzed. The calculated ultimate bearing capacity and measured results were compared. The results showed that with the increase of shear-span ratio, the ultimate bearing capacity of each specimen decreased gradually, and the corresponding deflection of mid-span increased gradually. The calculated values of the ultimate bearing capacity of all specimens were basically consistent with the measured results. With the increase of shear-span ratio, the specimen changed from shear deformation to flexural deformation.
-
Key words:
- aluminum alloy beam /
- rectangular section /
- bending behavior /
- shear-span ratio /
- experimental study
-
王元清, 王中兴, 殷福新, 等. 铝合金受弯构件局部稳定性能试验研究[J]. 建筑结构学报, 2015, 36(8):42-48. Aluminum Association. Specification for Aluminum Structures[S]. Washington D C:Aluminum Association, 1976. ECCS. European Recommendations for Aluminum Alloy Structures[S]. London:European Convention for Constructional Steelwork, 1978. 沈祖炎, 郭小农, 李元齐. 铝合金结构研究现状简述[J]. 建筑结构学报, 2007, 28(6):100-109. 翟希梅, 戚仁平, 赵远征. 6082-T6铝合金构件受弯承载力计算方法[J]. 哈尔滨工业大学学报, 2018, 50(6):192-198. 冯然, 陆洋. 铝合金方形和矩形管截面开孔梁受弯性能试验[J]. 建筑科学与工程学报, 2018, 35(4):34-44. 陆洋. 铝合金方管开孔梁受弯性能研究[D]. 合肥:合肥工业大学, 2016. 石永久, 程明, 王元清. 铝合金受弯构件变形性能的非线性分析[J]. 四川大学学报(工程科学版), 2006, 38(1):13-17. 石永久, 王元清, 程明, 等. 铝合金梁中腹板受弯屈曲的设计方法[J]. 土木建筑与环境工程, 2009, 31(4):5-9. 郭小农, 邱丽秋, 罗永峰, 等. 铝合金板式节点受弯承载力试验研究[J]. 湖南大学学报(自然科学版), 2014, 41(4):47-53. 中国国家标准化管理委员会. 金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1-2010[S]. 北京:中国标准出版社, 2010. 中华人民共和国建设部. 铝合金结构设计规范:GB 50429-2007[S]. 北京:中国建筑工业出版社, 2007.
点击查看大图
计量
- 文章访问数: 60
- HTML全文浏览量: 8
- PDF下载量: 6
- 被引次数: 0