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首页> 外文会议>IMAC Conference on Structural Dynamics >Alleviation of Wind-induced Vibrations of Railings in a Building
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Alleviation of Wind-induced Vibrations of Railings in a Building

机译：减轻建筑物栏杆探测振动

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It was observed that wind-induced vibrations had created destructive effects on corner balcony railings in an oceanfront condominium building. The vibrations of the railings caused disconnections of welds at the ends of the pickets, and noise was generated, which created discomfort to the residents of the building. This paper presents a method to mitigate the wind-induced vibrations and noise of the balcony railings. The noise generation mechanisms were investigated; buffeting and vortex-induced vibration were identified as the two main mechanisms. A finite element (FE) model of a railing was developed using commercial FE software ABAQUS. The FE model was validated by modal testing results and used as a basis for later modifications. Design modifications were made for the railing and simulated using ABAQUS; increasing the stiffness of the railing was proposed as a solution based on the FE simulation results and the constraints imposed. A modified railing was installed on one of the corner balconies according to the solution and tested. The experimental results and on-site monitoring on the modified railing indicate that the noise issue has been resolved, and all of the affected railings were demolished and replaced with the modified railings.
机译：据观察，风引起的振动对海滨公寓大楼的角落阳台栏杆产生了破坏性影响。栏杆的振动引起了栅面末端的焊缝断开，产生了噪声，这为建筑物的居民产生了不适。本文提出了一种减轻阳台栏杆的风力振动和噪音的方法。研究了噪声产生机制;鉴定缓冲和涡旋诱导的振动作为两个主要机制。使用商业FE软件ABAQUS开发了栏杆的有限元（FE）型号。通过模态测试结果验证了FE模型，用作后来修改的基础。为栏杆进行设计修改，并使用ABAQUS模拟;提高栏杆的刚度是基于FE模拟结果的解决方案和施加的约束。根据解决方案并测试，将改进的栏杆安装在一个角阳台上。修改栏杆上的实验结果和现场监测表明，噪声问题已得到解决，并且所有受影响的栏杆被拆除并用改进的栏杆替换。

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