【摘 要】
：
基于已经开展的新型耗能杆增强预应力装配式混凝土框架节点试验建立了OpenSees分析模型.首先,通过数值分析结果与试验结果对比,表明有限元模型能够准确地反映节点承载能力和
【机 构】
：
东南大学混凝土及预应力混凝土结构教育部重点实验室,南京,210096
论文部分内容阅读
基于已经开展的新型耗能杆增强预应力装配式混凝土框架节点试验建立了OpenSees分析模型.首先,通过数值分析结果与试验结果对比,表明有限元模型能够准确地反映节点承载能力和自复位特性.其次,随着附加耗能杆所用材料的屈服点的增加,新型耗能杆增强预应力装配式混凝土框架节点的承载力与耗能能力增加,具有较低屈服点的耗能杆能够较早地为预应力装配式混凝土框架节点提供耗能能力;最后,与采用附加软钢耗能杆的预应力装配式混凝土框架节点相比,当采用铝合金耗能杆时,虽然节点的承载力基本保持相同,但是节点的刚度和屈服点明显降低.
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