[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]
点击复制
基于振动响应分析的部分斜拉桥阻尼器优化(/HTML)
《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 seismic; partially cable-stayed bridge; response spectrum method; vibration response; damper 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:
[1] 吴江,耿方方,宗兰,等. 多塔斜拉桥抗震减震性能的研究现状综述[J]. 江苏建材,2017(4):59-63. [2] 李宏男,成虎,王东升. 桥梁结构地震易损性研究进展述评[J]. 工程力学,2018,35(9):1-16. [3] HWANG H,刘晶波. 地震作用下钢筋混凝土桥梁结构易损性分析[J]. 土木工程学报,2004,37(6):47-51. [4] KARIM K R,YAMAZAKI F. A simplified method of constructing fragility curves for highway bridges [J]. Earthquake Engineering and Structural Dynamics,2003,32(10):1603-1626. [5] SHINOZUKA M,FENG M Q,LEE J,et al. Statistical analysis of fragility curves [J]. Journal of Engineering Mechanics,2000,126(12): 1224-1231. [6] SHINOZUKA M,FENG M Q,KIM H,et al. Statistical analysis of fragility curves [R]. Buffalo,NY:Multidisciplinary Center for Earthquake Engineering Research,2003. [7] KIM S H, FENG M Q. Fragility analysis of bridges under ground motion with spatial variation [J]. International Journal of Non-Linear Mechanics,2003,38(5):705-721. [8] GHOSH J, SOOD P. Consideration of time-evolving capacity distributions and improved degradation models for seismic fragility assessment of aging highway bridges [J]. Reliability Engineering & System Safety,2016,154:197-218. [9] 方圆,席进. 地震作用下独塔斜拉桥抗震体系优化[J]. 公路,2015,60(5):56-60. [10] 邹顺,折孝明,王付. PC连续刚构桥基于反应谱理论的抗震设计研究[J]. 公路,2018,63(3):126-130. [11] 李小军,贺秋梅,亓兴军. 地震动速度脉冲对大跨斜拉桥减震控制的影响[J]. 应用基础与工程科学学报,2012,20(2):272-285. [12] 燕斌. 基础隔震独塔斜拉桥抗震性能研究[J]. 桥梁建设,2018,48(2):25-30. [13] 汪正兴,柴小鹏,马长飞. 桥梁结构阻尼减振技术研究与应用[J]. 桥梁建设,2019,49(增刊1):7-12. [14] 詹建辉,彭晓彬. 大跨度组合梁斜拉桥结构设计方案研究[J]. 桥梁建设,2016,46(4):85-91. [15] 程炜,张磊. 高烈度区大跨PC连续刚构桥抗震分析[J]. 公路,2019,64(12):162-167. [16] 陈亨锦,王凯,李承根. 浅谈部分斜拉桥[J]. 桥梁建设,2002(1):44-47. [17] 范立础. 桥梁抗震[M]. 2版. 北京:人民交通出版社,2011. [18] 刘晶波. 结构动力学[M]. 北京:机械工业出版社,2005. [19] 胡国辉. 大跨度混合梁斜拉桥塔梁间粘滞阻尼器参数比选及减震效果分析[J]. 广东建材,2019,35(5):45-47,37.
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:[email protected]*通讯作者:卢海林,博士,教授。E-mail: [email protected]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