Volume 39 Issue 6
Jun.  2024
Turn off MathJax
Article Contents
Zuowei Qin, Hui Li, Dong Han, Haiqiang Jiang. Structure Optimization and Performance Analysis of Box-Type Support Joint of L-Shaped Partially Coated Steel-Concrete Composite Column[J]. STEEL CONSTRUCTION(Chinese & English), 2024, 39(6): 7-13. doi: 10.13206/j.gjgS22082301
Citation: Zuowei Qin, Hui Li, Dong Han, Haiqiang Jiang. Structure Optimization and Performance Analysis of Box-Type Support Joint of L-Shaped Partially Coated Steel-Concrete Composite Column[J]. STEEL CONSTRUCTION(Chinese & English), 2024, 39(6): 7-13. doi: 10.13206/j.gjgS22082301

Structure Optimization and Performance Analysis of Box-Type Support Joint of L-Shaped Partially Coated Steel-Concrete Composite Column

doi: 10.13206/j.gjgS22082301
  • Received Date: 2022-08-23
    Available Online: 2024-06-24
  • Partially encased steel-concrete composite columns (PEC columns) have broad application prospects in the field of prefabricated buildings. In recent years, rectangular PEC columns have been widely used in the residential field, but L-shaped PEC columns, especially in frame-support structures, are less used. L-shaped PEC column is a new type of composite structural member. Because its limb thickness is the same as that of the wall, it avoids indoor convex columns, so it has better application prospects in prefabricated steel structure residential buildings. However, the structure of box steel support joints is more complicated. Usually in the project design, the connection structure is determined by referring to the steel structure joint structure in the 16G519 Multi-High-Rise Civil Building Steel Structure Joint Structure Detail Map. Therefore, the research on the connection structure and performance of L-type PEC column and support needs to be improved. Based on the background of Dongshenghefu 10# building residential project, according to the seismic design requirements of “strong joint and weak component”, the internal force of YJK model is extracted according to the requirements of elastic analysis under moderate earthquake: under the condition combination of 1. 3(D+0. 5L) +0. 3W+1. 4Eh, the maximum axial pressure of the support is obtained, and the maximum axial tension of the support is obtained under the condition combination of 1. 0(D+0. 5L) +0. 3W+1. 4Eh. According to the internal force of the relevant members under the combination, the finite element analysis of the traditional scheme and the optimization scheme of the box steel support joint is carried out. Based on the results of the finite element analysis, the stress distribution and stress value of the concrete and the main steel parts under tension and compression are analyzed. It is concluded that the pressure from the abdomen of the box support can be resisted by the concrete filled in the L-shaped PEC column, and the tension can be effectively transmitted through the horizontal stiffening plate. In addition, the stress distribution and stress peak of the optimization scheme are basically the same as those of the traditional scheme under the combination of medium earthquake elastic conditions, and the safety margin of the connection is good, which meets the performance requirements of the “medium earthquake elastic”combination conditions. The performance of the box-type support node structure of the optimized L-shaped PEC column has not decreased significantly, but it brings convenience to the processing and improves the quality controllability.
  • loading
  • [1]
    中国工程建设标准化协会.部分包覆钢-混凝土组合结构技术规程:T/CECS 719-2020[S].北京:中国建筑工业出版社,2020.
    [2]
    金振奋,李少华,肖志斌,等.部分包覆钢-混凝土组合结构设计方法及实践[J].建筑钢结构进展,2023,25(2):94-101.
    [3]
    聂建国,王宇航.ABAQUS中混凝土本构模型用于模拟结构静力行为的比较研究[J].工程力学,2013,30(4):59-67.
    [4]
    刘巍,徐明,陈忠范.ABAQUS混凝土损伤塑性模型参数标定及验证[J].工业建筑,2014,44(增刊):167-171.
    [5]
    石亦平,周玉蓉.ABAQUS有限元分析实例详解[M].北京:机械工业出版社,2006.
    [6]
    韩林海.钢管混凝土结构:理论与实践[M].北京:科学出版社,2004.
    [7]
    中华人民共和国住房和城乡建设部.钢结构设计标准:GB 50017-2017[S].北京:中国建筑工业出版社,2018.
    [8]
    娄宇,温凌燕,李伟,等.钢框架-K形支撑结构体系抗震性能试验研究[J].建筑结构学报,2022,43(11):32-40.
    [9]
    朱杰,朱浩川,肖志斌,等.部分包覆钢-混凝土组合墙轴压稳定性能研究[J].钢结构(中英文),2023,38(6):12-21.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (156) PDF downloads(13) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return