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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

42卷

期数:

2025年03期

页码:

26-36

栏目:

建筑结构

出版日期:

2025-05-30

文章信息/Info

Title:

Static behavior analysis of drum-shaped honeycomb-type suspen-dome with quad-strut layout

文章编号:

1673-2049(2025)03-0026-11

作者:

吕 辉^1,2,涂弘炜¹,朱忠义^1,3,董石麟^2,4,张 浩¹

(1. 南昌航空大学 土木与交通学院,江西 南昌 330063; 2. 浙江大学 空间结构研究中心,浙江 杭州 310058; 3. 北京市建筑设计研究院股份有限公司,北京 100045; 4. 浙江大学 浙江省空间结构重点实验室,浙江 杭州 310058)

Author(s):

LYU Hui^1,2, TU Hongwei¹, ZHU Zhongyi^1,3, Dong Shilin^2,4, ZHANG Hao¹

(1. School of Civil Engineering and Transportation, Nanchang Hangkong University, Nanchang 330063, Jiangxi, China; 2. Space Structures Research Center, Zhejiang University, Hangzhou 310058, Zhejiang, China; 3. Beijing Institute of Architectural Design Co., Ltd., Beijing 100045, China; 4. Zhejiang Provincial Key Laboratory of Space Structures, Zhejiang University, Hangzhou 310058, Zhejiang, China)

关键词:

鼓蜂窝四撑杆型弦支穹顶;  有限元分析;  静力性能;  参数分析

Keywords:

drum-shaped honeycomb-type suspen-dome with quad-strut layout;  finite element analysis;  static behavior;  parameter analysis

分类号:

TU394

DOI:

10.19815/j.jace.2023.10051

文献标志码:

A

摘要:

提出了一种鼓蜂窝四撑杆型弦支穹顶结构形式,为探究该结构的相关力学特性,基于ANSYS软件建立了有限元模型,并对鼓蜂窝四撑杆型弦支穹顶结构进行了有限元模拟,探讨了结构在满跨、半跨均布活荷载作用下弹性阶段的受力情况; 通过参数分析研究了预应力、矢跨比、高跨比、下弦布置方案和上弦布置方案等结构参数对结构力学性能的影响规律。结果表明:在多倍荷载作用下,上弦杆件内力由受拉变为受压,避免了传统索穹顶在荷载作用下因脊索松弛失效而退出工作导致的承载能力下降,且在6倍满跨活荷载作用下的最大竖向节点位移仅为0.102 m,结构刚度较好; 预应力水平显著影响结构刚度及其内力分布,提高矢跨比将大幅降低结构刚度,高跨比则反之,下弦布置方案1、2较具经济性,Ⅲ型结构的经济性较好; 鼓蜂窝四撑杆型弦支穹顶结构具有较好的静力性能。

Abstract:

A drum-shaped honeycomb-type suspen-dome with quad-strut layout was proposed. In order to explore the related mechanical properties of the structure, the finite element model was established based on ANSYS software, and the finite element simulation of the drum-shaped honeycomb-type suspen-dome with quad-strut layout was carried out. The stress behavior of the structure in elastic stage under uniformly distributed live loads of full span and half span was studied. The parameter analysis was carried out to study the influence of prestress, rise-span ratio, height-span ratio, lower chord arrangement and upper chord arrangement on the mechanical properties of the structure. The results show that under multiple loads, the internal force of the upper chord member changes from tension to compression, which avoids the deficiency of the traditional cable dome that quit work due to the relaxation failure of the ridge cable under load, resulting in the reduction of bearing capacity. The maximum vertical node displacement under 6 times of the full span live load is only 0.102 m, indicating that its structural stiffness is good. The prestress level significantly affects the structural stiffness and internal force distribution of the structure. Increasing the rise-span ratio will greatly reduce the structural stiffness, while the height-span ratio is the opposite. The lower chord arrangement schemes 1 and 2 are more economical, and the type III structure is more economical. Drum-shaped honeycomb-type suspen-dome with quad-strut layout has good static performance.

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备注/Memo

备注/Memo:

收稿日期:2023-10-17
基金项目:国家自然科学基金项目(52278224); 南昌航空大学研究生创新专项基金项目(YC2023-082)
作者简介:吕 辉(1982-),男,工学博士,教授,E-mail:lvhui@nchu.edu.com。
Author resume: LYU Hui(1982-), male, PhD, professor, E-mail: lvhui@nchu.edu.com.

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更新日期/Last Update: 2025-06-01