登录
注册
E-alert
登录
注册
E-alert
Research on Mechanical Properties of Bamboo Winding Composite Pipe Reinforced Thin-Walled Steel Tube Composite Structures Under Axical Compression
-
摘要: 竹缠绕复合管是由我国独立研发的一种新型环保材料,为研究其约束薄壁圆钢管组合结构的轴压性能,对组合试件进行轴压试验,研究组合试件的破坏形式、承载能力;分析了荷载与位移、应变的变化趋势;并提出组合试件轴压极限承载力理论计算公式。最后运用ABAQUS有限元软件对组合试件进行参数化分析,分析了竹缠绕复合管厚度等参数对轴压性能的影响。试验结果表明:组合试件的破坏形式为试件中部侧向弯曲破坏;相比纯竹缠绕复合管和钢管,组合试件的极限承载力分别提高了6.5倍和1.5倍;试验结果与有限元模拟结果吻合较好,理论计算承载力算式与试验结果误差为 5.9%。Abstract: The bamboo winding composite pipe is a new type of environmentally-friendly material independently developed in China. In order to study the reinforced thin-walled circular steel tube composite structures, axial compression tests were conducted on the composite specimens, and the failure modes and bearing capacity of the composite specimens were studied. Trends of load versus displacement and strain were analyzed, and a theoretical calculation formula for the axial compression ultimate bearing capacity of the composite specimens was proposed. Finally, ABAQUS finite element software was used to analyze the parametric analysis of the composite specimen, as well as the influence of the thickness of bamboo winding composite pipe and other parameters on the axial compression performance. The experimental results showed that the failure mode of the composite specimens was lateral bending failure in the middle section of the specimen. Compared to pure bamboo winding composite pipes and steel tubes, the ultimate bearing capacity of the composite specimens had increased by 6.5 times and 1.5 times, respectively. The experimental results were in good agreement with the finite element simulation results, and the error between the theoretical calculation bearing capacity formula and the experimental results was 5.9%.
-
[1] 肖岩, 李佳.现代竹结构的研究现状和展望[J].工业建筑, 2015, 45(4):1-6. [2] 田黎敏, 靳贝贝, 郝际平.现代竹结构的研究与工程应用[J].工程力学, 2019, 36(5):1-18, 27. [3] 冷予冰, 许清风, 陈玲珠.工程竹在建筑结构中的应用研究进展[J].建筑结构, 2018, 48(10):89-97. [4] 马建新, 张淑娴, 孙元平, 等.竹缠绕复合管弯曲强度测试[J]. 世界竹藤通讯, 2019, 17(5):51-52, 72. [5] 张淑娴, 姜夏云, 马建新, 等.竹缠绕复合管环刚度测试试验[J].世界竹藤通讯, 2019, 17(4):37-39. [6] CHEN M, WENG Y, SEMPLE K, et al. Sustainability and innovation of bamboo winding composite pipe products[J]. Renewable and Sustainable Energy Reviews, 2021, 144(16), 110976. [7] 国家林草局竹缠绕复合材料工程技术研究中心.竹缠绕复合材料技术列入国家"十四五"生物经济发展规划[J].世界竹藤通讯, 2022, 20(3):3. [8] JIN B B, TIAN L M, HAO J P, et al. Axial compressive behavior of twining-bamboo-confined thin-walled steel tubular columns[J]. Journal of Constructional Steel Research, 2022(5):192. [9] 田黎敏, 李宸, 廖述荟, 等.CFRP约束竹条-薄壁圆钢管组合柱轴压性能研究[J].建筑结构学报, 2022, 43(12):243-254. [10] 解其铁, 张王丽, 蒋天元, 等.钢-竹组合柱轴心受压性能的试验研究[J].工程力学, 2012, 29(增刊2):221-225. [11] 解其铁. 静荷载作用下钢-竹界面粘结性能研究[D].宁波:宁波大学, 2012. [12] 葛玉猛, 李玉顺, 童科挺, 等. 薄壁型钢-重组竹组合工字形梁受剪性能研究[J]. 森林工程, 2018, 34(6): 72-79. [13] 吴波, 赵新宇, 张金锁. 薄壁圆钢管再生混合中长柱 的轴压与偏压试验研究[J]. 土木工程学报, 2012, 45(5): 65-77. [14] 冯立, 肖岩, 单波, 等.胶合竹结构梁柱螺栓连接节 点承载力试验研究[J].建筑结构学报, 2014, 35(4): 230-235. [15] 李天宇, 郭玉荣, 单波, 等.装配式胶合竹-混凝土组合梁试验研究[J].工业建筑, 2020, 50(8):57-64, 115. [16] 中华人民共和国国家质量监督检验检疫总局.金属材料 拉伸试验 第1部分:室温试验方法:GB/T 228.1—2021[S].北京:中国标准出版社, 2021. [17] 国家市场监督管理总局, 中国国家标准化管理委员会.竹缠绕复合管:GB/T 37805—2019[S].北京:中国标准出版社, 2019. [18] 王强, 常凯, 侯康康, 等.用于ABAQUS梁单元的混凝土单轴本构模型[J].建筑科学与工程学报, 2018, 35(5):194-202. [19] 史晨程, 吴婧姝, 张泽平, 等.基于ABAQUS的钢板混凝土板平面外弯剪性能的非线性有限元分析[J].工业建筑, 2015, 45(9):7-12. [20] 李武峰. FRP包裹圆钢管混凝土屈曲约束支撑稳定性能研究[D].哈尔滨:哈尔滨工业大学, 2018. -
点击查看大图
计量
- 文章访问数: 49
- HTML全文浏览量: 8
- PDF下载量: 1
- 被引次数: 0
下载:
