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Rigid-plastic models for the seismic design and assessment of steel framed structures

机译:刚架模型用于钢框架结构的抗震设计和评估

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This paper demonstrates the applicability of response history analysis based on rigid-plastic models for the seismic assessment and design of steel buildings. The rigid-plastic force-deformation relationship as applied in steel moment-resisting frames (MRF) is re-examined and new rigid-plastic models are developed for concentrically-braced frames and dual structural systems consisting of MRF coupled with braced systems. This paper demonstrates that such rigid-plastic models are able to predict global seismic demands with reasonable accuracy. It is also shown that, the direct relationship that exists between peak displacement and the plastic capacity of rigid-plastic oscillators can be used to define the level of seismic demand for a given performance target.
机译:本文论证了基于刚塑性模型的响应历史分析在钢结构房屋抗震评估和设计中的适用性。重新研究了钢制抗弯框架(MRF)中的刚塑性力-变形关系,并为同心支撑框架和由MRF与支撑系统组成的双重结构系统开发了新的刚塑性模型。本文表明,这种刚塑性模型能够以合理的精度预测整体地震需求。还表明,在峰值位移和刚性-塑性振荡器的塑性容量之间存在的直接关系可以用来定义给定性能目标的地震需求水平。

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