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Analyses of the rotational capacity of composite connections for plastic design

机译:用于塑料设计的复合材料连接件的旋转能力分析

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摘要

The demand for economic and eco-efficient solutions in construction industry is particularly enforcing efficient design and construction methods. The design of composite construction according to the plastic hinge theory in combination with semi-rigid joints provides one contemporary promising answer to these demands. This combination enables to mobilize almost all cross section and system reserves. However, the capability for redistribution of the bending moment from internal support to mid-span, to activate these system reserves requires sufficient rotation capacity of the composite beam and, especially, the connections. This paper presents design guidance on plastic and robust design of composite beams with semi-rigid composite conenctions with special focus on the influence of the reinforcement (ratio, diameter and type). With the provision of an engineering logic, new opportunities to design elegant and slender structures are given to engineers in a simple way.
机译:建筑行业对经济和生态高效解决方案的需求尤其要求有效的设计和施工方法。根据塑料铰链理论结合半刚性接头的复合结构设计为这些需求提供了一种当代有希望的答案。这种结合使得能够动员几乎所有横截面和系统储备。但是,将弯矩从内部支撑重新分配到中跨的能力,以激活这些系统储备,需要复合梁,尤其是连接件具有足够的旋转能力。本文介绍了具有半刚性组合形式的组合梁的塑性和鲁棒性设计的设计指南,特别着重于钢筋的影响(比,直径和类型)。通过提供工程逻辑,以简单的方式为工程师提供了设计优雅和细长结构的新机会。

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