薄壁型钢管/胶合竹板组合空芯柱轴压试验研究

周靖, 陈卓晟, 赵卫锋, 杨斌

周靖, 陈卓晟, 赵卫锋, 杨斌. 薄壁型钢管/胶合竹板组合空芯柱轴压试验研究[J]. 工程力学, 2018, 35(8): 91-99. DOI: 10.6052/j.issn.1000-4750.2017.04.0278
引用本文: 周靖, 陈卓晟, 赵卫锋, 杨斌. 薄壁型钢管/胶合竹板组合空芯柱轴压试验研究[J]. 工程力学, 2018, 35(8): 91-99. DOI: 10.6052/j.issn.1000-4750.2017.04.0278
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ZHOU Jing, CHEN Zhuo-sheng, ZHAO Wei-feng, YANG Bin. EXPERIMENTAL STUDY ON THE AXIAL COMPRESSION OF THIN-WALLED STEEL TUBE/BAMBOO-PLYWOOD COMPOSITE HOLLOW COLUMNS[J]. Engineering Mechanics, 2018, 35(8): 91-99. DOI: 10.6052/j.issn.1000-4750.2017.04.0278
Citation: ZHOU Jing, CHEN Zhuo-sheng, ZHAO Wei-feng, YANG Bin. EXPERIMENTAL STUDY ON THE AXIAL COMPRESSION OF THIN-WALLED STEEL TUBE/BAMBOO-PLYWOOD COMPOSITE HOLLOW COLUMNS[J]. Engineering Mechanics, 2018, 35(8): 91-99. DOI: 10.6052/j.issn.1000-4750.2017.04.0278
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薄壁型钢管/胶合竹板组合空芯柱轴压试验研究

  • 湘潭大学土木工程与力学学院, 湖南, 湘潭 411105

基金项目: 国家自然科学基金青年项目（51708476）；广东省自然科学基金项目（2017A030310579）；湖南省自然科学基金项目（2017JJ3302，2018JJ2401）
详细信息
    作者简介:

    周靖(1974-),男,湖南人,副教授,博士,硕导,从事组合结构和工程结构抗震研究(E-mail:jingzhchina@163.com);陈卓晟(1993-),男,湖南人,硕士生,从事组合结构研究(E-mail:czs1@qq.com);杨斌(1992-),男,湖南人,硕士生,从事组合结构研究(E-mail:18627598495@wo.com.cn).

    通讯作者:

    赵卫锋(1977-),女,湖南人,讲师,博士,从事组合结构研究(E-mail:weifengzhjing@126.com).

  • 中图分类号: TU398.+6

EXPERIMENTAL STUDY ON THE AXIAL COMPRESSION OF THIN-WALLED STEEL TUBE/BAMBOO-PLYWOOD COMPOSITE HOLLOW COLUMNS

  • College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan, Hunan 411105, China

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    摘要
  • 摘要: 为研究薄壁型钢管/胶合竹板组合空芯柱的轴压性能，进行了3批试件的轴压试验，考察组合柱的破坏形态特征、抗压承载力和变形情况，综合分析了长细比、净截面尺寸、空心率、截面组配形式、横向约束拉杆排数和相对竖向间距比对轴压性能的影响。结果表明：组合柱的破坏形态为端部或中部开胶剥离破坏、柱端竹胶板压溃破坏、端部或约束拉杆间开胶压折破坏以及压曲整体失稳破坏；增大长细比引起失稳破坏的趋势增大，净截面尺寸增大是极限承载力提高的关键因素；截面组配形式能影响组合柱破坏形态特征；设置约束拉杆能提升组合柱的承压稳定性，优化约束拉杆排数和相对竖向间距比的设计，能明显改善材料界面的接触效应而提升承载力。通过非线性回归分析，建立了组合柱的承载力计算方法。
    Abstract: To study the axial compression performance of thin-walled steel tube/bamboo-plywood composite hollow columns, three group tests of axial compression specimens were carried out to investigate the failure characteristics, bearing capacity and deformation of the composite columns. The influence of slenderness ratio, net sectional size, hollow ratio, sectional mode, row number and relative vertical spacing ratio of binding bars on the axial compression performance were analyzed. The results indicated that the failure modes can be divided into debonding glue failure at the end or middle of the column, crush failure of bamboo plywood at the end of the column, broken damage at the end of the column or between the binding bars, and the compressive buckling failure. The increase in the slenderness ratio enlarges the risk of buckling failure, and the increase in the net sectional size is the key factor to improve the ultimate bearing capacity. Sectional assembly can affect the failure modes of the composite column. Setting binding bars can improve the compressive stability of the composite column, and optimizing the design of the row number and relative vertical spacing ratio of binding bars can improve the contact effect of each material interface to increase the bearing capacity. A calculation method of the bearing capacity was formulated through the nonlinear regression analysis.
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出版历程
  • 收稿日期:  2017-04-09
  • 修回日期:  2017-09-13
  • 刊出日期:  2018-08-28

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