A decomposition method for form-finding of circular hybrid cable-truss structures considering self-weight

IF 4 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Journal of Constructional Steel Research Pub Date : 2024-11-15 DOI:10.1016/j.jcsr.2024.109160

Zhenhua Wang , Zhihong Zhang , Zhangli Peng , Xinran Wang , Jiankai Chen , Xinzan Hu

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引用次数: 0

Abstract

A hybrid cable-truss structure has been previously utilized in the Maracana Stadium. There are two ways to design the initial prestress distribution in the hybrid cable-truss structure, taking into account the functionality of the upper and lower hoop cables. This study proposes a decomposition method for determining the form-finding of circular hybrid cable-truss structures with two different prestress distributions. The hybrid cable-truss structure is decomposed into the inner and outer cable-truss structures. The PBS (partial balance strategy) method is employed to design the prestress and shape of both the inner and outer cable-truss structures with consideration of self-weight. A detailed prestress and shape design analysis of a circular hybrid cable-truss structure with two prestress distributions is conducted, and the precision of the initial prestress design is analyzed. The illustrative example presented herein demonstrates that the proposed method, combined with the PBS method, provides a simple and accurate approach for the form-finding of hybrid cable-truss roof systems subject to self-weight.

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考虑自重的圆形混合索-桁架结构形式求解分解法

马拉卡纳体育场曾采用过混合索-桁架结构。考虑到上下箍索的功能，有两种方法可以设计混合索-桁架结构的初始预应力分布。本研究提出了一种分解方法，用于确定具有两种不同预应力分布的圆形混合索-桁架结构的成型。混合索-桁架结构被分解为内索-桁架结构和外索-桁架结构。在考虑自重的情况下，采用 PBS（部分平衡策略）方法设计内外索桁架结构的预应力和形状。对具有两种预应力分布的圆形混合索桁架结构进行了详细的预应力和形状设计分析，并对初始预应力设计的精度进行了分析。本文提供的示例表明，所提出的方法与 PBS 方法相结合，为受自重影响的混合索桁架屋顶系统的外形确定提供了一种简单而准确的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Constructional Steel Research 工程技术-工程：土木

CiteScore

7.90

自引率

19.50%

发文量

550

审稿时长

46 days

期刊介绍： The Journal of Constructional Steel Research provides an international forum for the presentation and discussion of the latest developments in structural steel research and their applications. It is aimed not only at researchers but also at those likely to be most affected by research results, i.e. designers and fabricators. Original papers of a high standard dealing with all aspects of steel research including theoretical and experimental research on elements, assemblages, connection and material properties are considered for publication.