高温后方形泡沫铝填充钢管轴向压缩力学性能  

Axial compression mechanical performance of square foam aluminum-filled steel pipe after high temperature

作　　者：王展光 蔡萍 李冬梅 邵建华[2] 王振田 Wang Zhanguang;Cai Ping;Li Dongmei;Shao Jianhua;Wang Zhentian(College of Architectural Engineering,Kaili University,Kaili 556011,China;School of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang 212000,China;Guzhou Zhongjian Weiye Construction(Grop)Co.,Ltd.,Kaili 556011,China)

机构地区：[1]凯里学院建筑工程学院,贵州凯里556011 [2]江苏科技大学土木工程与建筑学院,江苏镇江212000 [3]贵州中建伟业建设(集团)有限责任公司,贵州凯里556011

出　　处：《轻金属》2023年第6期44-50,共7页Light Metals

基　　金：凯里学院博士发展专项研究课题(BSFZ202207);黔东南州科技计划项目(黔东南科合J字〔2022〕61号);贵州省教育厅高等学校科学研究项目(青年项目)(黔科技〔2022〕372号)。

摘　　要：为了研究高温后泡沫铝填充钢管轴向压缩性能,将制作好试件进行加温,自然冷却后进行静态轴向压缩试验,研究其承载能力和变形情况;分析加温温度、泡沫铝密度等参数对性能的影响。研究表明:在高温后压缩情况下,构件屈曲褶皱波瓣数量增加,其压缩变形模式从对称模式变成了非对称模式;其平均压溃载荷随加温温度的增加而减小,随着泡沫铝相对密度和外围钢管厚度的增大而增大;在平均压溃载荷理论公式中考虑外围钢管与填充的泡沫铝产生交互效应的影响,相关理论公式与试验结果吻合较好。In order to study the axial compression performance of foam aluminum-filled steel pipes after high temperature,the pipes were heated.After natural cooling,the static axial compression test was carried out to study the bearing capacity and deformation;Effects of heating temperature,density of foam aluminum on the performance were analyzed.The results show that in the case of compression after high temperature,the number of buckling folded lobes of the component increases,its compression deformation mode changes from symmetric mode to asymmetric mode;The average crushing load decreases with the rise of heating temperature,which increases along with the higher relative density of foam aluminum and the thickness of peripheral steel pipe;In the theoretical formula of average crushing load,the interaction effect between the peripheral steel pipe and the filled foam aluminum is considered,and the relevant theoretical formula is in good agreement with the test results.

关 键 词：高温 泡沫铝 镀锌钢管 平均压溃载荷 压缩性能 

分 类 号：TF821[冶金工程—有色金属冶金] TU398.9[建筑科学—结构工程]