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[1]游嘉玮,顾箭峰,卢海林*.基于振动响应分析的部分斜拉桥阻尼器优化[J].武汉工程大学学报,2020,42(04):444-450.[doi:10.19843/j.cnki.CN42-1779/TQ.202001006]
 YOU Jiawei,GU Jianfeng,LU Hailin*.Damper Optimization of Partial Cable-Stayed Bridges Based on Vibration Response Analysis[J].Journal of Wuhan Institute of Technology,2020,42(04):444-450.[doi:10.19843/j.cnki.CN42-1779/TQ.202001006]
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基于振动响应分析的部分斜拉桥阻尼器优化(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
42
期数:
2020年04期
页码:
444-450
栏目:
资源与环境工程
出版日期:
2021-01-28

文章信息/Info

Title:
Damper Optimization of Partial Cable-Stayed Bridges Based on Vibration Response Analysis
文章编号:
1674 - 2869(2020)04 - 0444 - 07
作者:
游嘉玮顾箭峰卢海林*
武汉工程大学土木工程与建筑学院,湖北 武汉 430074
Author(s):
YOU Jiawei GU Jianfeng LU Hailin*
School of Civil Engineering and Architecture,Wuhan Institute of Technology, Wuhan 430074, China
关键词:
结构抗震部分斜拉桥反应谱法振动响应阻尼器设计
Keywords:
structure seismicpartially cable-stayed bridgeresponse spectrum methodvibration responsedamper design
分类号:
TU312+.1
DOI:
10.19843/j.cnki.CN42-1779/TQ.202001006
文献标志码:
A
摘要:
为了对部分斜拉桥进行抗震阻尼器优化设计,以珠海市鸡啼门特大桥为例进行分析。建立ANSYS有限元模型,采用反应谱法分别分析了不同工况组合,50年内地震强度超越概率10%和2.5%地震作用下结构振动响应。研究发现:可以增加固定支座水平承载力或者允许固定支座在地震中剪断来提高该类桥梁的抗震性能;对桥梁进行阻尼器优化设计,通过对比分析,确定本桥所对应的最优阻尼器设置参数[ξ]=0.3,C=2×103 kN(m/s)-ξ;对阻尼器优化结果进行验算,发现在该阻尼器参数下桥梁墩柱关键截面的内力显著减小,优化效果最高使得屈服弯矩减小69.3%。
Abstract:
To optimize the design of seismic dampers for partial cable-stayed bridge,the analysis was performed using the Jitimen Bridge in Zhuhai as an example. An ANSYS finite element model was established,and the response spectrum method was used to analyze the structural vibration in the earthquakes with the exceeding probabilities of 10% and 2.5% in 50 years under different working conditions. The study reveals that the seismic performance of this type of bridge can be improved by increasing the horizontal bearing capacity of the fixed support or allowing the fixed support to be sheared in an earthquake. In addition,the damper of the bridge was optimized. Based on the comparison analysis,the optimal damping parameters are determined as follows:[ξ]=0.3,C=2×103 kN (m/s)-ξ. With the verification of damper optimization results,it is found that the internal force of the key section of the bridge pier column is significantly reduced under the optimized damper parameters. The yield bending moment can be reduced by up to 69.3%.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-01-06基金项目:湖北省教育厅科学技术研究计划指导性项目(B2018051);武汉工程大学科学研究基金(K2017025)作者简介:游嘉玮,硕士研究生。E-mail:474938834@qq.com*通讯作者:卢海林,博士,教授。E-mail: hail_lu@yangtzeu.edu.cn引文格式:游嘉玮,顾箭峰,卢海林. 基于振动响应分析的部分斜拉桥阻尼器优化[J]. 武汉工程大学学报,2020,42(4):444-450.
更新日期/Last Update: 2020-08-13