Numerical modeling of web crippling failure of trapezoidal sheeting at the end support

IF 3.9 2区工程技术 Q1 ENGINEERING, CIVIL

Structures Pub Date : 2025-05-13 DOI:10.1016/j.istruc.2025.109097

Zsolt Nagy , Örs Nagy , Miquel Casafont , Xavier Centelles , Oriol Bové , Annabella Sánduly , Béla Bács

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引用次数: 0

Abstract

The structural behavior of thin-walled trapezoidal sheeting under web crippling is complex to predict due to the interaction of several interrelated parameters. In that sense, experimental tests provide reliable results, but advanced numerical models, previously validated with experimental tests, offer a less time-consuming, more cost-effective and flexible alternative for studying this phenomenon. This research paper presents a numerical model that focuses on the web crippling resistance of trapezoidal sheeting (cross section with multiple webs) at end supports, where little literature is found compared to single web members and interior supports. A geometrically and materially nonlinear analysis (GMNIA) was done with finite element (FE) models. The study provides a description of the FE modeling approach, including the boundary conditions, mesh and loading configurations, and material properties derived from experimental tests. Once validated, these models were used to create a simplified parametric model for time-efficient investigation of the effects of support configurations, specifically the bearing width and free-end length, on the web crippling mechanism. The results demonstrate the influence of these parameters on stress distributions and failure modes, with significant differences in structural behavior based on the support setup. This research offers practical insights into the web crippling failure and resistance of trapezoidal sheeting, contributing to the development of more accurate design methodologies.

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端部支架梯形薄板腹板破坏的数值模拟

由于几个相互关联的参数相互作用，薄壁梯形薄板在腹板破坏作用下的结构行为难以预测。从这个意义上说，实验测试提供了可靠的结果，但是，以前通过实验测试验证的先进数值模型为研究这一现象提供了一种更节省时间、更具成本效益和更灵活的替代方法。本文提出了一个数值模型，重点研究了梯形薄板（具有多个腹板的截面）在末端支撑中的腹板破坏阻力，与单腹板构件和内部支撑相比，很少有文献发现。采用有限元模型进行了几何和材料非线性分析（GMNIA）。该研究提供了有限元建模方法的描述，包括边界条件，网格和加载配置，以及从实验测试中得出的材料特性。一旦验证，这些模型被用来创建一个简化的参数模型，以高效地研究支撑配置的影响，特别是轴承宽度和自由端长度，对网破坏机构。结果表明，这些参数对应力分布和破坏模式有影响，不同的支架设置对结构性能有显著影响。本研究对梯形薄板的网损破坏和阻力提供了实际的见解，有助于开发更准确的设计方法。

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

Structures Engineering-Architecture

CiteScore

5.70

自引率

17.10%

发文量

1187

期刊介绍： Structures aims to publish internationally-leading research across the full breadth of structural engineering. Papers for Structures are particularly welcome in which high-quality research will benefit from wide readership of academics and practitioners such that not only high citation rates but also tangible industrial-related pathways to impact are achieved.