（凯里学院建筑工程学院， 凯里 556011)

［摘要］泡沫铝填充钢管柱是一种将多孔金属材料应用到组合结构的尝试，为了对其高温后的压缩性能及吸能能力进行研究，设计并制作了一批圆形泡沫铝填充镀锌钢管试件，按照规定加温曲线进行加温，冷却后对其进行压缩试验，得到高温后的不同尺寸泡沫铝填充镀锌钢管压缩反应。通过对试验结果分析可知，圆形泡沫铝填充镀锌钢管在压缩作用下经历弹性阶段和屈服平台阶段两个阶段，其平均压溃载荷和吸能能力随着泡沫铝相对密度和钢管厚度的增大而增加，随加温度的升高而降低，构件长细比对构件的压缩性能和吸能能力影响较小。并将试验结果与理论公式进行了比较，发现试验结果要高于理论公式的计算结果。

［关键词］高温; 泡沫铝; 镀锌钢管; 平均压溃载荷; 吸能能力； 压缩性能

中图分类号：TU398-9文献标识码：A文章编号：1002-848X(2020)15-0126-05

Compressive performance research of circular aluminum foam-filled galvanized steel  tubes after high temperature

WANG Zhanguang, DONG Zhiwei, LI Jie

（Architectural and Civil Engineering Institute， Kaili University, Kaili 556011, China)

Abstract:Aluminum foam-filled galvanized steel tube column is an attempt to apply porous metal materials to composite structures. In order to study the compressive performance and energy absorption capacity of the tubes after high temperature, a batch of circular aluminum foam-filled galvanized steel tube components were designed and made,  the temperature was heated according to the prescribed temperature curve, and the compressive test was carried out after cooling to get the compressive reaction of different sizes of the tubes after high temperature. Through the analysis of the test results, it shows that the  circular aluminum foam-filled galvanized steel  tubes have two stages of elastic stage and yield platform stage under compression. The average crushing load and energy absorption capacity increase with the increase of relative density and thickness of the steel tube, and decrease with the increase of temperature. The ratio of slenderness to length has little effect on the compressive performance and energy absorption capacity of the components. The experimental results were compared with the theoretical formulas, and the experimental results are found to be higher than the theoretical ones.

Keywords:high temperature; aluminum foam; galvanized steel tube; average crushing load; energy absorption capacity; compressive performance

*贵州省科技计划项目（黔科合LH字［2017］7169号），国家自然科学基金（11462007）。

作者简介：王展光,博士,教授,Email：wzg3262396@163.com。