酸雨环境下掺锂渣钢筋混凝土柱有限元分析
作者:
作者单位:

作者简介:

许开成(1973—),男,教授,博士,博士生导师,研究方向为工程结构耐久性。E-mail:xkcxj@ecjtu.edu.cn。

通讯作者:

中图分类号:

TU375.3

基金项目:

国家自然科学基金项目(51968021,51468017);江西省自然科学基金项目(20202BAB204031)


Finite Element Analysis of Reinforced Concrete Column Mixed withLithium Slag Under Acid Rain
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为研究掺锂渣钢筋混凝土柱的力学性能,基于 ANSYS 有限元软件对 14 个掺锂渣钢筋混凝土柱进行数值模拟,并将模拟结果与试验结果进行对比分析。主要研究构件的破坏形态、材料应力应变云图、极限承载力与荷载-挠度曲线等方面的特性。重点讨论锂渣掺量和偏心距对未腐蚀构件力学性能的影响,以及酸雨腐蚀时间和锂渣掺量对腐蚀后构件力学性能的影响。 研究结果表明:对于未腐蚀构件,不同锂渣掺量对小偏心构件影响更为明显,不同偏心距对构件的承载力与刚度影响十分显著,且在一定范围内,掺入锂渣能提高柱的极限承载力;对于腐蚀构件,锂渣的掺入对腐蚀后柱的承载力和抗侧刚度等性能有一定提升,且柱的极限承载力随腐蚀时间的增加而下降,锂渣的掺入能一定程度上延缓腐蚀时间对承载力的影响。

    Abstract:

    In order to study the mechanical properties of reinforced concrete columns with lithium slag, a numerical simulation of 14 reinforced concrete columns with lithium slag was carried out based on ANSYS finite element software, and the simulation results were compared with the test results.The failure modes, material stressstrain nephogram, ultimate bearing capacity and load-deflection curves were studied.The effects of the content oflithium slag and eccentricity on the mechanical properties of uncorroded components and the effects of acid raincorrosion time and the content of lithium slag on the mechanical properties of corroded components were discussed.The results show that for the non-corroded members, the influence of different lithium slag content on thesmall eccentric members is more obvious, and the influence of different eccentricity on the bearing capacity andstiffness of members is very significant; and in a certain range, the ultimate bearing capacity of the column canbe improved by adding lithium slag. For corroded members, the addition of lithium slag can improve the bearingcapacity and lateral stiffness of the corroded column to a certain extent, and the ultimate bearing capacity of thecolumn decreases with the increase of corrosion time. The addition of lithium slag can delay the influence ofcorrosion time on the bearing capacity to a certain extent.

    参考文献
    相似文献
    引证文献
引用本文

许开成,易彬,张立卿,陈博群.酸雨环境下掺锂渣钢筋混凝土柱有限元分析[J].华东交通大学学报,2021,38(3):7-14.
Xu Kaicheng, Yi Bin, Zhang Liqing, Chen Boqun. Finite Element Analysis of Reinforced Concrete Column Mixed withLithium Slag Under Acid Rain[J]. JOURNAL OF EAST CHINA JIAOTONG UNIVERSTTY,2021,38(3):7-14

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2021-08-02
  • 出版日期:
关闭