基于自复位耗能阻尼器的钢框架节点滞回性能有限元研究

卜娜蕊; 赵慧斌; 江伟; 吕浩璋; 白润山

doi:10.3724/j.gyjzG23082406

基于自复位耗能阻尼器的钢框架节点滞回性能有限元研究

doi: 10.3724/j.gyjzG23082406

1. 河北建筑工程学院土木工程学院, 河北张家口 075000;
2. 河北省土木工程诊断、改造与抗灾重点实验室, 河北张家口 075000

基金项目:

河北建筑工程学院创新基金（XY2023028）。

详细信息

作者简介:
卜娜蕊，硕士，教授，主要从事混凝土结构设计、结构抗震理论等教学工作。bnr1492@hebiace.edu.cn

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出版历程
- 收稿日期: 2023-08-24
- 网络出版日期: 2026-01-06

Finite Element Study on Hysteretic Properties of Steel Frame Joints with Self-Centering Energy Dissipation Dampers

1. School of Civil Engineering, Hebei University of Architecture, Zhangjiakou 075000, China;
2. Hebei Key Laboratory of Diagnosis, Reconstruction and Anti-disaster of Civil Engineering, Zhangjiakou 075000, China

摘要

摘要: 为了减小传统建筑结构在震后所产生的残余变形，提出了一种新型自复位耗能阻尼器，并进行了阻尼器理论分析与构造设计。阻尼器通过螺旋压缩弹簧和形状记忆合金（shape memory alloy，SMA）螺杆相结合的方式实现自复位，通过SMA螺杆在拉伸过程中的耗能和其他部件之间的滑动摩擦实现耗能，各部件之间受力关系明确，整体结构简单明了、便于安装。通过有限元模拟的方式，综合研究了SMA螺杆的初始预拉力、螺旋压缩弹簧的初始预压力与各部件之间的摩擦系数对阻尼器承载能力、耗能能力和复位能力的影响，并进一步分析了装有该阻尼器的钢框架结构梁柱节点的力学性能。结果表明，新型自复位耗能阻尼器在受拉和受压过程中均有较强的稳定性和较好的自复位耗能效果，其滞回曲线呈“旗帜”形。该复位耗能阻尼器安装于钢框架梁柱节点，能够耗散大量能量并且可以有效地控制节点的残余变形。
- 自复位耗能阻尼器 /
- 梁柱节点 /
- 形状记忆合金 /
- 数值模拟 /
- 滞回响应
Abstract: In order to reduce the residual deformation of traditional building structures after an earthquake， a novel self-centering energy dissipation damper is proposed. Theoretical analysis and structural design of the damper were carried out. The damper resets itself through the combination of a spiral compression spring and a shape memory alloy （SMA）， with energy dissipation achieved through the tensile process of the SMA rod and the sliding friction between other components. The force relationship between each component is clear， and the overall structure is simple and easy to install. The effects of the initial pretension of the SMA rod， the initial pre-pressure of the helical compression spring， and the friction coefficient between the components on the bearing capacity， energy dissipation capacity， and resetting capacity of the damper were comprehensively investigated by means of finite element simulation. The mechanical properties of steel frame beam-column joints equipped with the dampers were further analyzed. The results showed that the novel self-centering energy dissipation damper exhibited strong stability and excellent self-centering energy dissipation effect in both tension and compression processes， characterized by a "flag-shaped" hysteretic curve. When the self-centering energy dissipation damper was installed in the steel frame beam-column joint， it dissipated a large amount of energy and effectively controlled the residual deformation of the joint.
- self-centering energy dissipation damper /
- beam-column joint /
- shape memory alloy /
- numerical simulation /
- hysteretic response

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参考文献(10)

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