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欧洲规范4是针对组合构造的欧洲设计规范,在EN1994-1-1中主要涵盖了对“无侧移框架建筑”设计的讨论。因此,欧洲规范4更注重对结构部件的检查,如梁、柱、板和节点。然而,近几年,没有抗风支撑体系的高层建筑和大型工业用房普遍出现整体失稳这样的失效模式,而欧洲规范4并没对其进行详尽的介绍。最近,在Liège大学进行了密集型试验以及数值和理论研究。后者旨在不断发展的设计规则下,完善对有侧移组合框架建筑这一领域的认识。梁-柱组合节点的转动性能是重要的一个研究方面并着重对其进行了讨论。文章介绍了Liège大学对这一研究主题的研究结果。特别提出一个新型的、可以预测静态荷载下钢和组合框架极限承载因素和相关倒塌模式的简化分析模型。
Eurocode 4 is a European design code for composite construction and a major discussion of the “no sidetracking frame building” design in EN1994-1-1. Therefore, Eurocode 4 places more emphasis on inspection of structural components such as beams, columns, plates and joints. However, in recent years, failure modes such as overall instability are common in high-rise buildings and large industrial buildings without wind-resistant bracing system, and the European Specification 4 does not give an exhaustive introduction. Recently intensive research and numerical and theoretical studies were conducted at the University of Liège. The latter aims at perfecting the understanding of the area with sidetransferred combinatorial frame under the continuous development of design rules. The rotating behavior of the beam-column joint is an important research aspect and its emphasis is discussed. The article introduces the research results of Liège University on this topic. In particular, a new simplified analytical model that predicts the ultimate load-bearing factors and associated collapse patterns of steel and composite frames under static loading is proposed.