Experimental and numerical study of hysteresis behavior of innovative hybrid steel-timber shear wall system

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2024-11-23 DOI:10.1016/j.tws.2024.112743

Mojtaba Gorji Azandariani , Ali Parvari , Arvin Yaghmouri , Mehdi Vajdian

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引用次数: 0

Abstract

This research presents hybrid steel-timber shear walls (HSTSWs) as an environmentally friendly and structurally efficient system. The HSTSW system provides quick and easy interchangeability of the timber components, making it adjustable and adaptable to different design needs throughout the building's lifecycle. Additionally, the incorporation of timber elements into the steel frame contributes to lateral resistance while offering an eco-friendly alternative to materials such as steel and concrete. This research includes experimental studies and numerical simulations using finite element analysis to investigate and comprehensively compare the hysteresis behavior of HSTSW and SPSW. The hysteresis behavior, ultimate load, failure modes, energy dissipation mechanisms, ultimate displacement, weight-related characteristics, and efficiency of load-carrying capacity are analyzed for both HSTSW and SPSW specimens. Comparative results with SPSW indicate that HSTSW exhibit a slightly higher ultimate load-carrying capacity and significantly greater ultimate deformation capacity. The cyclic behavior and failure modes of both systems are detailed, emphasizing the trade-off between strength and ductility in HSTSWs. Stiffness, ductility, absorbed energy, and equivalent viscous damping ratio are assessed, revealing that HSTSW absorb more energy with higher specific absorbed energy and exhibit comparable damping behavior to SPSW. Additionally, numerical modeling is employed to simulate the response of SPSW and HSTSW, and a validation process is conducted to compare numerical and experimental outcomes.

查看原文本刊更多论文

新型钢-木混合剪力墙体系滞回特性试验与数值研究

本研究提出了钢-木混合剪力墙（HSTSWs）作为一种环保和结构高效的系统。HSTSW系统提供了木材组件的快速和容易的互换性，使其在整个建筑生命周期中可调节和适应不同的设计需求。此外，将木材元素结合到钢框架中有助于抵抗横向阻力，同时提供了钢和混凝土等材料的环保替代品。本研究包括实验研究和数值模拟，利用有限元分析对HSTSW和SPSW的迟滞行为进行研究和全面比较。分析了HSTSW和SPSW试件的滞回特性、极限荷载、破坏模式、能量耗散机制、极限位移、重量相关特性和承载力效率。与SPSW的对比结果表明，HSTSW的极限承载能力略高于SPSW，极限变形能力显著高于SPSW。详细介绍了两种系统的循环行为和破坏模式，强调了HSTSWs强度和延性之间的权衡。通过刚度、延性、吸收能量和等效粘性阻尼比的评估，发现HSTSW吸收更多的能量，比吸收能量更高，并且具有与SPSW相当的阻尼行为。此外，采用数值模拟方法对SPSW和HSTSW的响应进行了模拟，并对数值结果和实验结果进行了对比验证。

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.