Mechanical Engineering and Power Engineering

Investigation of the mechanical characteristics of suspended tripod for the heat absorption tower

  • WANG Qiang-bing ,
  • AN Yu-jun ,
  • SHI Cheng-long ,
  • SUN Yong-ji
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  • 1. Gansu Installation Construction Group Co., Lanzhou 730050, China;
    2. School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
    3. GansuVocational College of Communications, Lanzhou 730207, China

Received date: 2025-08-27

  Online published: 2026-09-03

Abstract

To address the inaccuracies in strength and stiffness calculations for suspended climbing brackets caused by neglecting the elastic modulus of concrete, the static performance of a climbing-form bracket used in the construction of a solar absorber tower in Guazhou, Gansu Province was investigated here. By comprehensively considering the elastic modulus of concrete and multiple load cases, the static mechanical behavior of the bracket under reinforcement binding and concrete pouring conditions was analyzed using the finite element method. Results show that omitting the concrete elastic modulus leads to a maximum stress error of 23.8% and an overall stiffness error of 43.19%. Under the rebar tying, the symmetric load-1 condition is identified as the optimal load case, in which the axial forces of the tie bolts and diagonal members are uniformly distributed and minimized. Under concrete pouring, the skew-symmetric load-1 and Asymmetric load-3 condition were identified as the optimal load cases, with uniformly distributed and minimized axial forces in the tie bolts, diagonal members, and vertical tubes. This study provides a reliable scientific basis for safety assessments of the primary load-bearing structure in suspended tripod.

Cite this article

WANG Qiang-bing , AN Yu-jun , SHI Cheng-long , SUN Yong-ji . Investigation of the mechanical characteristics of suspended tripod for the heat absorption tower[J]. Journal of Lanzhou University of Technology, 2026 , 52(4) : 59 -65 . DOI: 10.13295/j.cnki.issn1673-5196.2026.04.007

References

[1] 桑莹雪,韩风霞,乔亮,等.基于修正证据理论的高耸结构翻模施工安全风险评估[J].科学技术与工程,2023,23(3):1326-1334.
[2] Abdel-Jaber M S,Beale R G,Godley M H R,et al.Rotational strength and stiffness of tubular scaffold connectors[J].Proceedings of the Institution of Civil Engineers-Structures and Buildings,2009,162(6):391-403.
[3] Weesner L B,Jones H L.Experimental and analytical capacity of frame scaffolding[J].Engineering Structures,2001,23(6):592-599.
[4] 贾莉,刘红波,陈志华,等.扣件式钢管满堂脚手架承载力验算方法[J].建筑结构,2016,46(6):71-76.
[5] 李朝阳,潘新忠,余波.建筑施工钢管脚手架非线性分析及现场实测验证[J].工业建筑,2020,50(9):112-117.
[6] 胡长明,王娟,梅源,等.插口式钢管模板支架风险分析模型研究[J].河海大学学报(自然科学版),2020,48(1):66-72.
[7] 张漳荣,周继忠,姜绍飞.套管承插式脚手架节点力学性能分析[J].福州大学学报(自然科学版),2020,48(4):525-531.
[8] 蔺宏远,黄春,刘传军,等.考虑直角扣件失效的脚手架试验研究及有限元分析[J].建筑结构,2019,49(增刊2):689-695.
[9] 张志超,陈向荣,林冰,等.脚手架立杆套管接长下轴压稳定性研究[J].建筑结构学报,2022,43(1):228-238.
[10] 陈东,丁克伟,何夕平.非均布荷载下扣件式脚手架的随机缺陷稳定分析[J].西安建筑科技大学学报(自然科学版),2016,48(5):661-668.
[11] 秦桂娟,刘国文.连墙件设置缺陷对脚手架立杆最大弯矩的影响[J].沈阳建筑大学学报(自然科学版),2019,35(1):109-116.
[12] 秦桂娟,刘海军,贾连光,等.连墙件布置对脚手架整体稳定承载力的影响[J].沈阳建筑大学学报(自然科学版),2019,35(6):981-987.
[13] 李宝平,王智,赵涛.构配件布置方式对脚手架稳定承载力的影响分析[J].西安工业大学学报,2017,37(4):288-294.
[14] Liu C,He L,Wu Z Y,et al.Experimental and numerical study on lateral stability of temporary structures[J].Archives of Civil and Mechanical Engineering,2018,18(4):1478-1490.
[15] Mercier C,Khelil A,Al-Mahmoud F,et al.Experimental investigations of buckling behaviour of steel scaffolds[J].Structures,2021,33,433-450.
[16] 袁泉,杨振坤,柴洁,等.早龄期H型钢混凝土梁受力性能试验研究及有限元分析[J].建筑结构学报,2014,35(3):193-200.
[17] 赵萌萌,史艳莉.长期荷载作用对内配工字型钢方钢管混凝土轴压短柱力学性能影响[J].兰州理工大学学报,2021,47(6):122-130.
[18] GB 50135—2019 高耸结构设计标准[S].
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