• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Arabian Journal for Science and Engineering >Experimental Study on the Behavior of Recycled Concrete-Filled Thin-Wall Steel Tube Columns Under Axial Compression
【24h】

Experimental Study on the Behavior of Recycled Concrete-Filled Thin-Wall Steel Tube Columns Under Axial Compression

机译：再生混凝土填充薄壁钢管柱轴压性能的试验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In order to study the axial compression performance of recycled concrete-filled bolted thin-wall steel tube and the constraint effect of steel tube on different recycled aggregate concretes (RACs), a total of 12 composite square columns with two different length-to-side ratios (L/D) and three kinds of concrete were tested. Results are shown as follows: the most serious buckling behavior of columns with L/D = 3.25 and 6 is different, and the buckling degree is in relation to type of concrete. All the composite columns which depict three stages in their load-axial compression behaviors enter yield stage in 75% ultimate load. The type of concrete has great influence on the ultimate load-carrying capacity of columns with L/D = 3.25 and has little influence on ultimate displacement, contrary to the columns with L/D = 6. There exist three representative performance points in the load-axial strain curves of steel tube. The constraint effect of steel tube on RAC with recycled brick aggregate (RBA) is the best, which of columns with L/D = 3.25 is better than that of columns with L/D = 6. Some equations (e.g., Eurocode 4, Giakoumelis and Lam's, and Xiao et al.) considering concrete confinement are suitable for calculating the load-carrying capacity of RCFTST using RBA. The internal curing effect of clay brick makes the performance of composite columns improve significantly.
机译：为了研究再生混凝土填充螺栓薄壁钢管的轴向压缩性能以及钢管对不同再生骨料混凝土（RACs）的约束作用，共有12根长边不同的复合方柱进行了L / D比和三种混凝土的测试。结果表明：L / D = 3.25和6的圆柱最严重的屈曲行为有所不同，屈曲程度与混凝土类型有关。所有描述其载荷-轴向压缩行为三个阶段的复合柱均以75％的极限载荷进入屈服阶段。与L / D = 6的立柱相反，混凝土的类型对L / D = 3.25的立柱的极限承载力有很大的影响，对极限位移的影响很小。钢管的轴向应变曲线。钢管对再生砖骨料（RAC）的约束效果最好，L / D = 3.25的柱比L / D = 6的柱要好。一些方程（例如，Eurocode 4，Giakoumelis） （Lam和Lam等人）考虑混凝土约束，适合使用RBA计算RCFTST的承载能力。粘土砖的内部固化作用使复合柱的性能大大提高。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号