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首页> 外文期刊>Bulletin of earthquake engineering >Behavior factor of concrete portal frames with dissipative devices based on carbon-wrapped steel tubes
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Behavior factor of concrete portal frames with dissipative devices based on carbon-wrapped steel tubes

机译：基于碳缠绕钢管的耗散装置混凝土门户框架的行为因素

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摘要

The key element characterizing the seismic vulnerability of existing prefabricated RC structures, not designed for earthquake actions, are friction-based connections between structural members; mainly those between beams and columns and beams and roofing beams. The paper discusses the effectiveness of dissipative connectors made of carbon wrapped steel tubes. In particular, it presents the results of Incremental Dynamic Analyses on portal frames, aimed at evaluating behavior factor values to be used in design. A simplified formula for estimating the behavior factor is also proposed. Results of nonlinear IDAs suggest that the introduction of these dissipative devices in friction-based beam-column joints provides an effective connection between structural members and, in addition, reduces the forces transmitted to columns, improving the seismic behavior of the entire structure.
机译：表征现有预制钢筋混凝土结构地震易损性的关键要素（不是为地震作用设计的）是结构构件之间基于摩擦的连接；主要是梁与柱之间以及梁与屋面梁之间。本文讨论了碳包覆钢管制作的耗散连接件的有效性。特别是，它给出了门式刚架增量动力分析的结果，旨在评估设计中使用的行为因子值。本文还提出了一个估算行为因子的简化公式。非线性IDA的结果表明，在基于摩擦的梁柱节点中引入这些耗散装置，可以在结构构件之间提供有效连接，此外，还可以减少传递到柱上的力，改善整个结构的抗震性能。

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