Volume 39 Issue 4
Apr.  2024
Turn off MathJax
Article Contents
Feng Yao, Jiantao Zhang, Liu Wang, Yongjian You. Research on Design and Construction Technology of Width-Narrowing Multi-Layer Interval High-Level Connected Structure[J]. STEEL CONSTRUCTION(Chinese & English), 2024, 39(4): 1-9. doi: 10.13206/j.gjgS23091301
Citation: Feng Yao, Jiantao Zhang, Liu Wang, Yongjian You. Research on Design and Construction Technology of Width-Narrowing Multi-Layer Interval High-Level Connected Structure[J]. STEEL CONSTRUCTION(Chinese & English), 2024, 39(4): 1-9. doi: 10.13206/j.gjgS23091301

Research on Design and Construction Technology of Width-Narrowing Multi-Layer Interval High-Level Connected Structure

doi: 10.13206/j.gjgS23091301
  • Received Date: 2023-09-13
    Available Online: 2024-05-31
  • Publish Date: 2024-04-22
  • A newly built hospital has a total height of 79. 6 meters and 18 floors above ground. Two symmetrical inpatient buildings are arranged, and three aerial corridors are set at intervals between the 9th and 10th floors, 12th and 13th floors, and 15th and 16th floors respectively. The span of each corridor is 25. 2 meters. The main tower adopts a steel frame braced structure system, and the frame beams of the three steel corridors act as chord members, with center supports between upper and lower levels to form a plane truss. The width of the corridors narrows from 24. 3 meters to 7. 8 meters compared to the main tower structure. The structure is complex, and the corridors have high seismic performance requirements. Additionally, the order of dismantling the scaffolding not only causes additional effects on the structure but also affects on-site construction efficiency. Therefore, key technical issues and solutions in the design and construction process of multi-layered high-rise connected structures with narrowing widths have been summarized. By comparing and analyzing the differences in modal vibration modes, lateral and torsional stiffness, and joint construction forms between the connected structure and the main tower using strong and weak connections, a strong connection scheme for the connected structure was established. Based on seismic performance-oriented design objectives, a seismic non-yielding verification was performed on the highrise connected structure, and the results showed that the load-bearing capacity of the members and floors met the established seismic performance targets. Depending on the stage of scaffolding removal, two construction schemes were analyzed for additional internal forces and deformations caused to the connected structure. Considering on-site construction efficiency, it was determined to adopt a construction plan that involves removing the corresponding scaffolding immediately after each floor’ s corridor installation is completed. The analysis results indicated that the high-rise corridors symmetrically located on both sides of the main towers should adopt a strong connected structure form. To ensure the stiffness of the strong connected structure and coordinate the two side towers, the shear bearing capacity within the plane of the connected structure should be larger than the standard value of the maximum shear force of the floor under fortify against earthquake. During the construction phase, the connecting truss can be used as a support for the upper connection scaffolding, and additional stresses and deflections can be released through reasonable construction steps. Additional deflections can be compensated for by adjusting the height of the scaffolding based on construction simulation analysis.
  • loading
  • [1]
    邓星河,焦伟丰,黄跃林,等.某场馆大跨空间钢桁架连廊施工过程模拟分析[J].四川建筑,2022,42(2):216-218

    ,221.
    [2]
    李海培,李路川,于敬海.大跨度钢连廊的舒适度分析与研究[C]//第二十二届全国现代结构工程学术研讨会论文集.徐州:2022.
    [3]
    潘毅,张彪,刘永鑫,等.连接方式对大跨度异形钢连廊连体结构抗震性能的影响[J].建筑结构学报,2023,44(3):30-38.
    [4]
    吴国勤,傅学怡,张琼,等.基于人群-结构耦合振动大跨连廊人致振动舒适度评估[J].建筑结构,2020,50(14):120-125

    ,109.
    [5]
    惠晓丽,朱前坤,何立才,等.不对称双塔楼高位连体结构设计[J].建筑结构,2017,47(3):40-46

    ,83.
    [6]
    刘洋,尹强,陈鑫.某项目高空钢结构连廊设计优化与整体提升施工技术[C]//2021年全国土木工程施工技术交流会论文集(上册).北京:2013.
    [7]
    梁伟,高银鹰,贾文颖.连体结构的设计与分析[C]//建筑结构抗震技术国际论坛论文集.北京:2021.
    [8]
    罗赤宇,廖旭钊,梁银天.某大跨度复杂连体结构抗震设计[J].建筑结构,2019,49(7):35-42.
    [9]
    中华人民共和国住房和城乡建设部.高层建筑混凝土结构技术规程:JGJ 3-2010[S].北京:中国建筑工业出版社,2010.
    [10]
    中华人民共和国住房和城乡建设部.钢管混凝土结构技术规范:GB 50936-2014[S].北京:中国建筑工业出版社,2014.
    [11]
    傅学怡.实用高层建筑结构设计[M].北京:中国建筑工业出版社, 2010.
    [12]
    中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB 50011-2010[S].北京:中国建筑工业出版社,2016.
    [13]
    张伟超,张磊,王磊,等.大跨度双曲线钢结构施工过程模拟分析[J].工程建设与设计,2022(21):18-22.
  • 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 (102) PDF downloads(14) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return