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作者:

Hou, Baowen (Hou, Baowen.) | Wang, Yue (Wang, Yue.) | Zheng, Huanze (Zheng, Huanze.) | Peng, Jia (Peng, Jia.)

收录:

EI Scopus

摘要:

Grout-filled double skin tubular (GFDST) columns can avoid the adverse effects of steel tube corrosion on structural members and decrease the self-weight of the members to further reduce their response under earthquake action. A three-dimensional solid numerical modeling was established with a GFDST column with stainless steel outer tube as the object. The effect of the stainless steel outer tube thickness, the carbon steel inner tube width, and whether grout is filled between the tubes on the failure modes, load–displacement curves, and ultimate strength of GFDST columns with stainless steel outer tubes were analyzed based on the Finite Element Modeling (FEM). Results show that the FEM results are in good agreement with the experimental results. The failure modes of GFDST columns with stainless steel outer tubes are outward local buckling, and it can be seen from the stress nephograms that the location where buckling occurs is also the location of high stress in the member. With the increase of stainless steel outer tube thickness, the ultimate strength is increased. Increasing the carbon steel inner tube width has little effect on the ultimate strength of specimens with grout infilled and has a significant effect on the ultimate strength of specimens without grout infilled. The load versus displacement curves obtained from experiment and FEM have an initial linear stage followed by a transitional and plastic stage. Subsequently, the curves decrease slowly. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词:

Tubes (components) Steel corrosion Mortar Stainless steel Finite element method Grouting Tubular steel structures

作者机构:

  • [ 1 ] [Hou, Baowen]CCCC Fourth Highway Engineering Co., LTD., Beijing; 100124, China
  • [ 2 ] [Wang, Yue]CCCC Fourth Highway Engineering Co., LTD., Beijing; 100124, China
  • [ 3 ] [Zheng, Huanze]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Peng, Jia]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China

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ISSN: 2366-2557

年份: 2023

卷: 212

页码: 177-184

语种: 英文

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