圆竹-纤维增强磷石膏组合短柱轴向压缩性能研究

Axial Compressive Properties of Round Bamboo-fiber Reinforced Phosphogypsum Composite Short Columns

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摘要竹子是一种理想的绿色建筑材料,具有优异的力学性能。磷石膏是亟待资源化利用的固体废渣,可以被用作建筑材料。以一种圆竹-纤维增强磷石膏复合短柱为原料,开展纯竹、内填充磷石膏、外部包裹磷石膏的竹柱子和内外部均布置磷石膏的竹柱子的轴向压缩试验,探究短柱破坏模式和受力性能,分析竹节、喉箍和竹管尺寸等参数对短柱力学性能的影响。结果表明:竹节和喉箍对柱子的承载力、初始刚度和延性具有一定的提升作用。竹管尺寸越大,短柱的力学性能越好。圆竹-磷石膏复合短柱的承载力高于纯竹柱子,外部包裹磷石膏的竹柱子的延性明显高于纯竹柱子。 Bamboo is an ideal green building material with excellent mechanical properties.Phosphogypsum(PG)is a kind of solid waste residue which is in urgent need of resource utilization and has been used as construction material.In this paper,a kind of round bamboo-fiber reinforced phosphogypsum composite short column was proposed.Axial compression tests of pure bamboo columns,bamboo columns filled with phosphogypsum inside,bamboo columns with phosphogypsum outside,and bamboo columns with phosphogypsum inside and outside were carried out to explore the failure mode and mechanical properties of the short columns.The effects of the parameters include bamboo node,hose hoops,and size of the bamboo tube on the mechanical properties of the short columns were analyzed,and the theoretical calculation method of the bearing capacity of the short columns was put forward.The results showed that the bamboo nodes and hose hoops can improve the bearing capacity,initial stiffness and ductility of the column.The larger the size of the bamboo tube,the better the mechanical properties of the short column.The bearing capacity of round bamboo-phosphogypsum composite short column was higher than that of pure bamboo column.The ductility of bamboo columns with phosphogypsum outside was obviously higher than that of pure bamboo columns.

作者杨黎明路晓明刘鹏程 YANG Li-ming;LU Xiao-ming;LIU Peng-cheng(School of Civil Engineering and Architecture,Zhengzhou University of Science and Technology,Zhengzhou 450064,Henan,P.R.China;Zhengzhou New materials and New Structure Engineering Research Center,Zhengzhou 450064,Henan,P.R.China;School of Materials Science and Engineering,Central South University of Forestry and Technology,Changsha 410004,Hunan,P.R.China)

机构地区郑州科技学院土木建筑工程学院郑州市新材料与新型结构工程研究中心中南林业科技大学材料科学与工程学院

出处《林产工业》北大核心 2025年第6期27-31,共5页 China Forest Products Industry

基金河南省高等学校重点科研项目(23B560012)。

关键词毛竹磷石膏组合柱轴向压缩力学性能 Phyllostachys pubescens Phosphogypsum Composite columns Axial compression Mechanical characteristics

分类号 TS6 [轻工技术与工程] TS3 [轻工技术与工程]

作者简介第一作者:杨黎明,女,讲师、工程师,研究方向为木竹材料力学性能,E-mail:969436958@qq.com;通讯作者:刘鹏程,男,讲师,研究方向为竹木材料与结构,E-mail:pengchengliuwork@163.com。