The current trend of increasing the height limits of timber buildings makes wind-induced vibrations a non-negligible issue. The dynamics of high-rise timber structures are discussed, focusing on accelerations and comfort assessment of the currently tallest timber building in the world, namely, the 18-storey timber building in Norway. Verifications according to available standards were firstly carried out. Then, computational fluid dynamic analyses with Kratos Multiphysics were performed to simulate the wind flow around a rigid body. Afterward, the wind loads were applied to a single-degree of freedom model and to a reduced finite element model, performing a one-way coupling between the wind flow and the structure. Wind-induced vibrations resulted particularly strong in the across-wind direction, which is the most sensitive to the wind flow and the shape of the building. Provisions in international standards resulted to be not always enough to avoid discomfort in the occupants. Therefore, fluid dynamic analyses are suggested to simulate the actual response and verify the comfort criteria of tall timber buildings susceptible to wind-induced vibrations.

中文翻译：

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风振作用下高层木结构建筑舒适度评价

当前增加木结构建筑高度限制的趋势使风引起的振动成为一个不可忽视的问题。讨论了高层木结构的动力学，重点是目前世界上最高的木结构建筑，即挪威的 18 层木结构建筑的加速度和舒适度评估。首先根据现有标准进行验证。然后，使用 Kratos Multiphysics 进行计算流体动力学分析，以模拟刚体周围的风流。之后，将风荷载施加到单自由度模型和简化的有限元模型，在风流和结构之间执行单向耦合。风致振动在横风向特别强烈，这是对风流和建筑物形状最敏感的地方。国际标准中的规定并不总是足以避免居住者的不适。因此，建议进行流体动力学分析来模拟实际响应并验证易受风致振动影响的高层木结构建筑的舒适度标准。