Latour Massimo, Di Benedetto Sabatino, Francavilla Antonella Bianca, Saldutti Alberico, Rizzano Gianvittorio
Department of Civil Engineering, University of Salerno, 84084 Fisciano, Italy.
Materials (Basel). 2023 Mar 27;16(7):2641. doi: 10.3390/ma16072641.
The component method is a powerful tool for designing and modelling steel beam-to-column connections. Its widespread use is ensured by several formulations currently included in Eurocode 3 part 1.8 for welded and bolted joints. However, the recent use of 3D Laser Cutting Technology (3D-LCT) in the construction market has enlarged the range of solutions, allowing the realisation of tubular columns with passing-through elements. Given the recent development, no design formulations are currently provided for this typology. At this moment, only a few research studies have developed to fill this knowledge gap. At the University of Salerno, since some years, research efforts are ongoing to characterise the flexural strength of connections between Circular Hollow Section columns and passing double-tee beams, suggesting methodologies to predict the behaviour of the resistance and stiffness of this typology and some of its elementary joint components. Within this framework, this paper aims to examine the strength and stiffness of one of the main components of this joint, which was never examined previously, that is the so-called tube under localised transverse tension/compression. Design formulations are derived from a parametric study carried out through numerical simulations of several geometric configurations.
组件法是用于钢梁与柱连接设计和建模的有力工具。欧洲规范3第1.8部分中目前包含的几种焊接和螺栓连接的公式确保了其广泛应用。然而，建筑市场中最近对三维激光切割技术（3D-LCT）的使用扩大了解决方案的范围，使得带有贯穿件的管状柱得以实现。鉴于这一最新发展，目前尚未针对这种类型提供设计公式。此时，仅有少数研究致力于填补这一知识空白。多年来，萨勒诺大学一直在进行研究，以表征圆形空心截面柱与穿越双T形梁之间连接的抗弯强度，提出预测这种类型及其一些基本节点组件的抗力和刚度行为的方法。在此框架内，本文旨在研究该节点一个此前从未研究过的主要组件的强度和刚度，即所谓的承受局部横向拉/压的管。设计公式源自通过对几种几何构型进行数值模拟所开展的参数研究。
