Cyclic experiments and design of vertically-flexible stiffened steel plate shear walls

IF 6.6 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-10-01 DOI:10.1016/j.tws.2025.114049

Bing-Zhe Liu , Zhao-Yu Xu , Gen-Shu Tong , Jian Hou , Chao-Qun Yu , Jing-Zhong Tong

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引用次数: 0

Abstract

Steel plate shear wall (SPSW) has been widely applied in high-rise building structures to resist lateral loading effects. However, SPSWs are subjected to substantial vertical gravity loads, and thus the shear performance of the SPSWs is inevitably influenced. To mitigate the effects of vertical loads on the SPSWs, a novel vertically-flexible stiffened steel plate shear wall (VFS-SPSW) is reported in this paper. By using hollow rectangular steel tubes as horizontal stiffeners, low vertical stiffness of the SPSW is exhibited for releasing the vertical loading, and thus the impact of gravity loads is minimized. In this study, three 1:2 scaled specimens were designed and tested under quasi-static cyclic loading to evaluate the seismic behavior of the VFS-SPSWs. By analyzing the test results, the load-resistant mechanism, deformation characteristic and failure mode of the VFS-SPSWs were revealed. Additionally, a finite element (FE) model was developed, and it is demonstrated to well reflect the hysteretic performance and failure mode of the test specimens. By conducting extensive parametric analysis, the influence of key design parameters on the behavior of the VFS-SPSWs was revealed. Finally, through detailed theoretical analysis and numerical simulation, a formula for predicting the shear capacity of the VFS-SPSW was proposed with satisfactory accuracy. The investigation results of this study can provide valuable references for practical design and application of the VFS-SPSWs.

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竖向柔性加筋钢板剪力墙的循环试验与设计

钢板剪力墙（SPSW）在高层建筑结构中得到了广泛的应用。但由于其承受较大的垂直重力荷载，其抗剪性能不可避免地受到影响。为了减轻竖向荷载对钢板剪力墙的影响，本文提出了一种新型的竖向柔性加筋钢板剪力墙。采用空心矩形钢管作为水平加劲筋，可以充分发挥SPSW较低的竖向刚度，释放竖向荷载，减小重力荷载的影响。本研究设计了3个1:2比例的试件，并在准静态循环荷载下进行了试验，以评估vfs - spsw的抗震性能。通过对试验结果的分析，揭示了vfs - spsw的受力机理、变形特征和破坏模式。建立了有限元模型，较好地反映了试件的滞回性能和破坏模式。通过广泛的参数分析，揭示了关键设计参数对vfs - spsw性能的影响。最后，通过详细的理论分析和数值模拟，提出了具有较好精度的VFS-SPSW抗剪承载力预测公式。研究结果可为vfs - spsw的实际设计和应用提供有价值的参考。

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.