文档介绍:该【大跨度悬索桥地震响应控制分析 】是由【niuww】上传分享,文档一共【4】页,该文档可以免费在线阅读,需要了解更多关于【大跨度悬索桥地震响应控制分析 】的内容,可以使用淘豆网的站内搜索功能,选择自己适合的文档,以下文字是截取该文章内的部分文字,如需要获得完整电子版,请下载此文档到您的设备,方便您编辑和打印。大跨度悬索桥地震响应控制分析
大跨度悬索桥地震响应控制分析
摘要:
大跨度悬索桥是一种具有重要经济和社会价值的结构形式,然而,在地震情况下,悬索桥的结构安全性受到严重威胁。因此,通过控制悬索桥的地震响应,可以有效提高其地震安全性。本论文基于大跨度悬索桥的地震响应控制,综述了该领域的研究进展和应用情况,分析了悬索桥的地震响应特点,并介绍了常用的地震控制方法和技术。最后,通过数值模拟和实例分析,验证了不同控制策略的有效性,并提出了一些建议和展望。
1. 引言
研究背景和意义
国内外研究现状
2. 悬索桥的地震响应特点
悬索桥的结构与特点
地震荷载对悬索桥的影响
悬索桥的地震响应特性
3. 地震控制方法和技术
主动控制方法
位移控制策略
加速度控制策略
力控制策略
半主动控制方法
液阻控制策略
液压控制策略
磁流变控制策略
被动控制方法
摩擦减震器
粘滞减震器
钢球减震器
4. 数值模拟与实例分析
悬索桥的地震模型建立
地震响应控制策略选择
数值模拟结果与分析
实例分析及结果讨论
5. 论文总结与展望
主要研究成果总结
存在问题与改进方向
发展趋势与展望
参考文献
关键词:大跨度悬索桥;地震响应;地震控制;数值模拟;实例分析
Abstract:
The seismic response control analysis of large-span suspension bridges
Large-span suspension bridge is a structural form with significant economic and social value. However, under seismic conditions, the structural safety of suspension bridges is seriously threatened. Therefore, by controlling the seismic response of suspension bridges, the seismic safety can be effectively improved. This paper reviews the research progress and application of seismic response control of large-span suspension bridges, analyzes the seismic response characteristics of suspension bridges, and introduces commonly used seismic control methods and techniques. Finally, the effectiveness of different control strategies is verified through numerical simulation and case analysis, and some suggestions and prospects are proposed.
1. Introduction
Research background and significance
Research status at home and abroad
2. Seismic response characteristics of suspension bridges
Structure and characteristics of suspension bridges
Influence of seismic load on suspension bridges
Seismic response characteristics of suspension bridges
3. Seismic control methods and techniques
Active control methods
Displacement control strategy
Acceleration control strategy
Force control strategy
Semi-active control methods
Fluid viscous control strategy
Hydraulic control strategy
Magneto-rheological control strategy
Passive control methods
Friction dampers
Viscous dampers
Steel ball dampers
4. Numerical simulation and case analysis
Establishment of seismic model of suspension bridge
Selection of seismic response control strategies
Numerical simulation results and analysis
Case analysis and discussion of results
5. Conclusion and prospect
Summary of main research findings
Problems and improvement directions
Development trends and prospects
References
Keywords: large-span suspension bridge; seismic response; seismic control; numerical simulation; case analysis