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首页> 外文期刊>Bulletin of earthquake engineering >Influence of shear studs distribution on the mechanical behaviour of dissipative hybrid steel frames with r.c. infill walls
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Influence of shear studs distribution on the mechanical behaviour of dissipative hybrid steel frames with r.c. infill walls

机译：剪切螺柱分布对R.C的耗散混合钢框架力学的影响。 填充墙壁

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摘要

This paper studies the influence of the shear studs distribution, in terms of local and global effects, on the behavior of dissipative hybrid Steel frames with Reinforced Concrete infill Walls (SRCWs). Dissipative SRCWs have been recently proposed as seismic resistant systems, capable of coupling the high stiffness of reinforced concrete walls with the advantages of dissipative systems, in which the energy dissipation takes place in localized and replaceable elements. However, experimental tests showed that the global behavior and the failure mechanism of such systems are strongly influenced by the shear studs distribution along the steel frame-reinforce concrete wall interface. In this paper, this issue is studied through suitable numerical models, calibrated on the base of the available experimental results. Several modeling options and strategies are considered and their influence on the final results has been assessed. The resulting numerical model is used to analyze the mechanical behavior of such system and to perform parametric analyses varying the shear studs distribution. The results obtained help the understanding of the mechanical behavior and of the resisting mechanisms activated on the studied system, supplying relevant information for the development of more accurate design rules.
机译：本文研究了剪切螺柱分布在局部和全球效果方面对钢筋混凝土填充墙（SRCWS）的行为的影响。最近已经提出了耗散SRCW作为地震抗性系统，能够将钢筋混凝土墙的高刚度与耗散系统的优点耦合，其中能量耗散在局部和可更换的元件中进行。然而，实验测试表明，这种系统的全局行为和故障机理受沿钢框架加强混凝土墙界面的剪切螺柱分布的强烈影响。在本文中，通过合适的数值模型研究了该问题，校准了可用实验结果的基础。考虑了几种建模选项和策略，并评估了它们对最终结果的影响。所得到的数值模型用于分析这种系统的力学行为，并执行变化剪切螺柱分布的参数分析。得到的结果有助于了解在研究系统上激活的机械行为和抗蚀机制，为开发更准确的设计规则提供相关信息。

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