High-Fidelity Finite Element Modeling of Wood-Sheathed Cold-Formed Steel Shear Walls
High-Fidelity Finite Element Modeling of Wood-Sheathed Cold-Formed Steel Shear Walls
复制标题
DOI：
10.1061/(asce)st.1943-541x.0002879
复制
发表时间：
2021-02-01
影响因子：
4.1
通讯作者：
Peterman, Kara D.
中科院分区：
文献类型：
--
作者：
Derveni, Fani;Gerasimidis, Simos;Peterman, Kara D.
冷弯型钢 (CFS) 框架结构已在美国广泛采用和用于现代、轻质且经济高效的工程实践。这项工作的主要目标是对覆有定向刨花板 (OSB) 的 CFS 框架剪力墙在地震作用下的性能进行数值评估。开发了稳健的三维高保真壳有限元模型，旨在提供能够准确捕获这些系统中的强度、刚度和失效机制的基准建模方法。特别关注 CFS 构件和 OSB 护套之间的连接对整体剪力墙横向响应的基本作用。为了了解这一关键连接的可变性，我们执行了一系列 30 次相同的连接测试。所提出的计算模型的稳健性通过九个不同的 CFS 剪力墙实验研究和参数分析得到验证。所开发的模型用于提供精确的、基于实验的、基于紧固件的 CFS 框架剪力墙计算工具，并可用于设计规范扩展。 。 (C) 2020 年美国土木工程师学会。
Cold-formed steel (CFS) framed construction has been widely adopted and used toward a modern, lightweight, and cost-efficient engineering practice across the United States. The primary objective of this work is to numerically assess the performance of CFS-framed shear walls sheathed with oriented strand board (OSB) and subjected to seismic events. A robust three-dimensional high-fidelity shell finite element model is developed and aims to provide a benchmark modeling approach able to accurately capture strength, stiffness, and failure mechanisms in these systems. Particular attention is given to the fundamental role of the connections between the CFS members and the OSB sheathing to the overall shear wall lateral response. To understand the variability in this critical connection, a series of 30 identical connection tests are performed. The robustness of the proposed computational model is validated by nine different CFS shear wall experimental studies and by a parametric analysis. The developed model is applied to provide an accurate experimentally-derived fastener-based computational tool of CFS-framed shear walls with potential use in design code expansion. . (C) 2020 American Society of Civil Engineers.