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Numerical modelling and design of hybrid cold-formed steel wall panels
Thin-Walled Structures ( IF 5.7 ) Pub Date : 2020-09-18 , DOI: 10.1016/j.tws.2020.107084
Nima Usefi , Hamid Ronagh , Pezhman Sharafi

Hybrid cold-formed steel (CFS) wall panel, composed of square hollow sections (SHS) and CFS open sections, can offer some great advantages with respect to the lateral performance of light steel frames, in particular for applications in mid-rise construction. This paper presents non-linear finite element modelling of hybrid wall panels, calibrated through experimental tests, and their applications to different designs. The study involves the lateral behaviour of the proposed hybrid walls in terms of load-displacement curve, failure mode, stiffness, ductility ratio, energy absorption, and strength to weight ratio. First, a numerical model, verified and calibrated based on the experimental tests on the hybrid wall panels, is presented. Thereafter, using the validated numerical model, twenty new hybrid wall panel designs are proposed in order to investigate the effect of different SHS brace configurations on the hybrid panels’ performance. The comparison of the experimental and numerical results indicates that superior seismic performance can be achieved from the proposed hybrid CFS wall designs.



中文翻译:

混合冷弯型钢墙板的数值建模与设计

由方形空心型材(SHS)和CFS开放型材组成的混合型冷弯型钢(CFS)墙板在轻钢框架的侧向性能方面可以提供一些巨大的优势,特别是在中层建筑中。本文介绍了混合墙板的非线性有限元建模,并通过实验测试对其进行了校准,并将其应用于不同的设计中。这项研究涉及拟议的混合墙在荷载-位移曲线,破坏模式,刚度,延展性比,能量吸收和强度与重量比方面的横向行为。首先,提出了一种基于混合墙板上的实验测试进行验证和校准的数值模型。之后,使用经过验证的数值模型,为了研究不同的SHS支架配置对混合面板性能的影响,提出了20种新的混合壁面板设计。实验和数值结果的比较表明,通过提出的混合CFS墙设计可以实现卓越的抗震性能。

更新日期:2020-09-20
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