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。
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 shearspan 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.
作者
惠存
尚奇
王元清
海然
HUI Cun;SHANG Qi;WANG Yuanqing;HAI Ran(School of Architecture and Civil Engineering,Zhongyuan University of Technology,Zhengzhou 450007,China;Department of Civil Engineering,Tsinghua University,Beijing 100084,China)
出处
《工业建筑》
CSCD
北大核心
2020年第8期134-137,共4页
Industrial Construction
基金
河南省高等学校青年骨干教师培养计划项目(2019GGJS147)
河南省高等学校重点科研项目(20A560026)。
关键词
铝合金梁
矩形截面
受弯性能
剪跨比
试验研究
aluminum alloy beam
rectangular section
bending behavior
shear-span ratio
experimental study
