基于伸臂-负刚度阻尼原理的应力带桥减振控制研究OA
Vibration Control of Stress-ribbon Bridge Based on Outrigger-Negative Stiffness Damped Principle
随着城市建设水平的提高和旅游业的发展,对大跨人行景观桥建设需求不断增加.应力带桥因具有简洁的结构形式和优美的建筑外观,被逐渐应用于人行景观桥中,但其固有频率低、模态间隔紧密,在风、行人等动荷载作用下易发生振动.因此,为控制应力带桥振动,提出了基于伸臂-负刚度阻尼原理的应力带桥减振控制策略.首先,基于欧拉-伯努利梁理论建立了系统广义运动方程,并提出了基于复模态的系统动力特性计算方法.其次,系统地研究了应力带桥负刚度控制系统关键参数对系统动力行为的影…查看全部>>
With the improvement of urban construction level and the development of tourism industry,the demand for the construction of large-span pedestrian landscape bridges continues to increase.Stress-ribbon bridges are gradually applied in the pedestrian landscape bridges because of their simple structural form and beautiful architec-tural appearance.However,they are prone to vibration under dynamic loads such as wind and pedestrians due to the low natural frequenc…查看全部>>
王寒硕;许坤
北京工业大学桥梁工程安全与韧性全国重点实验室,北京 100124北京工业大学桥梁工程安全与韧性全国重点实验室,北京 100124
交通运输
应力带桥人致振动减振控制伸臂阻尼负刚度装置
stress-ribbon bridgepedestrian-induced vibrationvibration reduction controldamped outriggernegative stiffness device
《市政技术》 2024 (9)
1-9,128,10
国家自然科学基金(52178447)
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