Theoretical Determination of the Parameters of Transverse Viscous Damper along Self-Anchored Suspension Bridge

方海; 刘伟庆; 李升玉; 王仁贵

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Theoretical Determination of the Parameters of Transverse Viscous Damper along Self-Anchored Suspension Bridge

更新时间：2025-12-11

- Theoretical Determination of the Parameters of Transverse Viscous Damper along Self-Anchored Suspension Bridge
- Issue 2, Pages: 165-170(2007)
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  CLC： 448.25
- Published：2007
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[1]方海,刘伟庆,李升玉,王仁贵.自锚式悬索桥横向粘滞阻尼参数的理论确定方法[J].防灾减灾工程学报,2007(02):165-170.

方海, 刘伟庆, 李升玉, et al. Theoretical Determination of the Parameters of Transverse Viscous Damper along Self-Anchored Suspension Bridge[J]. 2007, (2): 165-170.
[1]方海,刘伟庆,李升玉,王仁贵.自锚式悬索桥横向粘滞阻尼参数的理论确定方法[J].防灾减灾工程学报,2007(02):165-170. DOI：

方海, 刘伟庆, 李升玉, et al. Theoretical Determination of the Parameters of Transverse Viscous Damper along Self-Anchored Suspension Bridge[J]. 2007, (2): 165-170. DOI：

摘要

某自锚式钢桁架悬索桥结构主跨408m

采用双层桥面

两根主缆为空间线形布置。根据自锚式悬索桥独特的动力特性

提出了在该悬索桥主梁与过渡墩、辅助墩之间沿横向设置粘滞阻尼器的消能减震设计方案

以控制悬索桥的横向地震反应。在粘滞阻尼器参数确定时

提出了速度指数确定的基本原则

并且根据虚功原理列出了主梁的横向振动方程

进而得出最优阻尼系数的确定方法;另外

将粘滞阻尼器与弹簧并联进行减震设计

可增加结构的早期刚度

并能获得较好的减震效果

可供工程实践参考。

Abstract

The self-anchored steel truss suspension bridge

with span of 408 m

floors of deck

has two main cables three-dimensionally distributed.Based on the particular dynamic characteristic of self-anchored suspension bridge

the viscous dampers are proposed to install between the deck and the anchor（auxiliary） piers to improve the transverse seismic response of the bridge structure.In the viscous damped energy-dissipated earthquake-reduction design scheme

the law how to choose damp exponent and how to choose optimal damp coefficient according to mechanical equation of the deck have been proposed.In addition

the results of analysis show that the initial stiffness of the structure can be enhanced and the transverse earthquake effect of the bridge can be reduced effectively by the simultaneous application of viscous damper and its shunt-wound spring

as can be used as reference for engineering practice.

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references

宿迁市文体综合馆基础隔震设计 [J]. 刘伟庆,董军,王曙光,周有根,尹士公,蓝宗建. 建筑结构学报 . 2003(02)

美国金门桥的抗震加固 [J]. 陈开利,刘海燕. 国外桥梁 . 1999(03)

耗能支撑钢筋砼框架结构的工程应用 [J]. 刘伟庆,王曙光,戴航,沈士强,臧富斌,薛彦涛. 振动工程学报 . 1999(02)

桥梁震害与减震防灾新对策 [J]. 周云,周福霖,李新平. 世界地震工程 . 1997(01)

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