双屈服点环形钢板剪切阻尼器力学性能与结构减震特性数值模拟研究

何凯璇; 李爱群; 杨参天

doi:10.13204/j.gyjzG23051114

双屈服点环形钢板剪切阻尼器力学性能与结构减震特性数值模拟研究

doi: 10.13204/j.gyjzG23051114

1. 北京建筑大学土木与交通工程学院, 北京 100044;
2. 东南大学土木工程学院, 南京 210096

基金项目:

国家重点研发计划项目（2022YFC3003602）。

详细信息

作者简介:
何凯璇,男,1998年出生,硕士研究生。

通讯作者:
李爱群,liaiqun@bucea.edu.cn。

计量
- 文章访问数: 54
- HTML全文浏览量: 18
- PDF下载量: 1
- 被引次数: 0
出版历程
- 收稿日期: 2023-05-11
- 网络出版日期: 2023-11-08

Numerical Simulation Study on the Mechanical Properties and Structural Seismic Response Control Characteristics of Double-Stage-Yield Annular Steel Plate Shear Dampers

HE Kaixuan¹,
LI Aiqun^{1,2
, ,},
YANG Cantian¹

1. School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
2. School of Civil Engineering, Southeast University, Nanjing 210096, China

摘要

摘要: 提出一种新型环形钢板剪切阻尼器（DASPSD），主要由上下两块连接板和两个环形金属阻尼器内外同轴套设构成，内、外环设有相应的连接件，该阻尼器具有双阶段工作和双级屈服耗能特性，有利于缓解框架结构的层间变形集中效应。首先，针对不同参数DASPSD开展了精细数值模拟研究，验证了该阻尼器的双阶段工作机制和双级屈服耗能特性，揭示了关键设计参数对DASPSD力学性能的影响规律。其次，基于弹塑性时程分析，明确了DASPSD相比于传统单阶U型阻尼器对于结构最大层间位移角和层间变形集中效应控制的优越性。
- 双屈服点环形钢板剪切阻尼器 /
- 抗震性能 /
- 数值模拟 /
- 动力时程分析
Abstract: A new type of double-stage-yield annular steel plate shear damper, DASPSD, was proposed, which is mainly composed of two connecting plates, an inner circular metal damper, and an outer circular metal damper. The inner and outer dampers are equipped with corresponding connectors. The damper has double-stage working mechanism and double-stage-yield energy dissipation characteristics, which is beneficial for mitigating the inter-story deformation concentration effect of frame structures. Firstly, refined numerical simulations were conducted on DASPSD with different parameters to validate the double-stage working mechanism and the double-stage-yield characteristics of the damper. The influence of key design parameters on the mechanical performance of DASPSD was revealed. Secondly, based on nonlinear time history analysis, the superiority of DASPSD in controlling the maximum inter-story drift ratio and the drift concentration effect compared to traditional single-stage U-shaped dampers was clarified.
- double-stage-yield annular steel plate shear damper /
- seismic performance /
- numerical simulation /
- dynamic time-history analysis

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参考文献(22)

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