当前位置: X-MOL 学术Fire Saf. J. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Cold-formed steel sheathing connections at elevated temperature
Fire Safety Journal ( IF 3.1 ) Pub Date : 2021-04-16 , DOI: 10.1016/j.firesaf.2021.103358
Jean C. Batista Abreu , Luiz C.M. Vieira , Thomas Gernay , Benjamin W. Schafer

The objective of this paper is to provide experimental results related to the elevated temperature performance of connections between cold-formed steel members and sheathing. Cold-formed steel building structures rely on sheathing for their mechanical benefits including bracing against member twist, global flexural and flexural-torsional buckling, and cross-section distortional buckling, as well as to supply lateral strength and energy dissipation in shear walls and diaphragms. Sheathing is also relied upon for non-structural benefits, including: fire, acoustic, and thermal performance. Predicting the degradation of the connection performance between cold-formed steel members and sheathing at elevated temperature is critical for any attempt to predict the structural performance of cold-formed steel buildings under fire demands. Steady-state connection tests were conducted under in-plane shear and pull-through at temperatures up to 400 °C for cold-formed steel members attached to gypsum board and oriented strand board. By combining the conducted tests with others in the literature retention factors for initial stiffness and ultimate strength of the connections are proposed.



中文翻译:

高温下的冷弯钢护套连接

本文的目的是提供与冷弯型钢构件和护套之间的连接的高温性能有关的实验结果。冷弯型钢建筑结构依靠护套具有机械优势,包括抗弯构件,整体挠曲和挠曲-挠曲屈曲,横截面变形屈曲以及在剪力墙和隔板中提供侧向强度和能量消散。非结构性优点还依赖于护套,包括:防火,隔音和热性能。对于在火灾需求下预测冷弯型钢建筑物的结构性能的任何尝试,预测冷弯型钢构件与护套之间的连接性能的下降都是至关重要的。在附有石膏板和定向刨花板的冷弯型钢构件上,在高达400°C的温度下进行面内剪切和拉拔的稳态连接测试。通过结合已进行的试验和文献中的其他试验,提出了连接的初始刚度和极限强度的保持因子。

更新日期:2021-05-24
down
wechat
bug