| 框架节点耗能的新方式及其数值分析 |
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| 引用本文： | 刘猛,闰维明,李振宝.框架节点耗能的新方式及其数值分析[J].工业建筑,2008,38(10). |
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| 作者姓名： | 刘猛 闰维明 李振宝 |
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| 作者单位： | 北京工业大学,工程抗震与结构诊治北京市重点实验室,北京,100022 |
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| 摘 要： | 铅具有良好的塑性变形能力,变形后能重新结晶恢复、无应变硬化。基于该特征,提出了一种杆式铅剪切阻尼器,这种阻尼器用于框架节点梁端塑性铰的耗能减震。采用有限元分析了阻尼器在不同初始屈服力、梁不同极限弯矩下的耗能性能。通过对梁滞回曲线的分析表明,所提出的耗能减震器工作性能稳定、耗能效率高、减震效果好、构造简单。
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| 关 键 词： | 结构抗震 节点耗能 铅剪切阻尼器 梁端塑性铰 |
A NOVEL TECHNIQUE FOR ENERGY DISSIPATION OF BEAM-COLUMN JOINT AND ITS NUMERICAL ANALYSIS |
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| Liu Meng,Yan Weiming,Li Zhenbao.A NOVEL TECHNIQUE FOR ENERGY DISSIPATION OF BEAM-COLUMN JOINT AND ITS NUMERICAL ANALYSIS[J].Industrial Construction,2008,38(10). |
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| Authors: | Liu Meng Yan Weiming Li Zhenbao |
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| Abstract: | Lead has a good deformability.Based on the properties of this deformability and recovering without strain-hardening,a rod-like lead shear damper,which is installed at the end(plastic hinge)of a beam for a framed joint,is presented, and it is primarily used in the dissipation of earthquake energy.Based on the finite element method(FEM) analytical results,it is found that this type of damper can effectively increase the damping ratio of a beam during a earthquake,and the performance is stable. |
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| Keywords: | earthquake-resistance of structure joint energy dissipation lead shear damper plastic hinge of beam |
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