Novel CFS truss with stamped diagonal system

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-04-11 DOI:10.1016/j.tws.2025.113295

Cleirton A.S. Freitas , Cheng Yu , Sai K. Nalla

引用次数: 0

Abstract

This paper presents a novel technology for designing, manufacturing and assembling cold-formed 2D trusses. The concept is based on creating a connection where the axes of the webs are concentric (at the same point), thus not generating additional moments to the truss chord members and increasing the overall stability of the trusses. An original connection configuration was developed by stamping the flanges of the diagonal webs. This technology also allows the diagonal elements to be manufactured continuously, making assembly quick and precise. To verify the efficiency of this novel truss design, experimental tests and FE models were carried out, comparing five standard cold-formed trusses with the new truss. The experimental results showed that the new truss demonstrated higher strength and stiffness than the standard cold-formed steel trusses and could be a viable solution for floor and roof applications.

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新型冲压对角体系CFS桁架

本文介绍了一种设计、制造和组装冷弯二维桁架的新技术。这一概念的基础是创造一种腹杆轴线同心（在同一点）的连接方式，从而避免对桁架弦杆产生附加力矩，提高桁架的整体稳定性。通过冲压斜腹板的翼缘板，开发出了一种独创的连接构造。这种技术还可以连续生产斜拉构件，使装配快速而精确。为了验证这种新型桁架设计的效率，我们进行了实验测试并建立了有限元模型，将五种标准冷弯桁架与新型桁架进行了比较。实验结果表明，新型桁架比标准冷弯钢桁架具有更高的强度和刚度，是楼板和屋顶应用的可行解决方案。

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

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.