The dynamic response of semi-rigid timber frames subjected to wind loads is investigated numerically in this paper. The dynamic response of more than one million unique frames with different parameters was assessed with the frequency-domain gust factor approach, which is currently adopted by Eurocode 1, and the time-domain generalized wind load method. In the generalized wind load method, the frames were simulated for three different wind velocities with five simulations per unique combination of parameters, resulting in more than twelve million simulations in total. Qualitative and quantitative observations of the dataset were made. Empirical expressions for the accelerations, displacements, and fundamental eigenfrequency were proposed by the use of nonlinear regression applied to the obtained numerical results and a frequency reduction factor was developed. The wind-induced accelerations obtained by the two methods were compared to the corresponding serviceability criteria according to ISO10137, providing insight about the feasibility of moment-resisting frames as a lateral load-carrying system for mid-rise timber buildings. Comparison between the theoretical gust factor approach and the generalized wind load method showed that the gust factor approach was nonconservative in most cases. Finally, the effect of uniform and non-uniform mass distributions was investigated, with a theoretical reduction in top-floor accelerations of 50% and 25% respectively.

数值研究了半刚性木框架在风荷载作用下的动力响应。使用Eurocode 1当前采用的频域阵风因子方法和时域广义风荷载方法，评估了超过一百万个具有不同参数的唯一帧的动态响应。在广义风荷载方法中，针对三种不同的风速对框架进行了仿真，每个独特的参数组合进行了五次仿真，总共进行了超过一千二百万次仿真。对数据集进行定性和定量观察。加速度，位移，通过对所得数值结果进行非线性回归，提出了基本特征频率和基频，并提出了降频因子。将这两种方法获得的风加速度与根据ISO10137的相应适用性标准进行了比较，从而提供了有关抗弯框架作为中层木结构建筑侧向承载系统的可行性的见解。理论阵风因子法与广义风荷载法的比较表明，阵风因子法在大多数情况下是非保守的。最后，研究了均匀和不均匀质量分布的影响，理论上顶加速度分别降低了50％和25％。将这两种方法获得的风加速度与根据ISO10137的相应适用性标准进行了比较，从而提供了有关抗弯框架作为中层木结构建筑侧向承载系统的可行性的见解。理论阵风因子法与广义风荷载法的比较表明，阵风因子法在大多数情况下是非保守的。最后，研究了均匀和不均匀质量分布的影响，理论上顶加速度分别降低了50％和25％。将这两种方法获得的风加速度与根据ISO10137的相应适用性标准进行了比较，从而提供了有关抗弯框架作为中层木结构建筑侧向承载系统的可行性的见解。理论阵风因子法与广义风荷载法的比较表明，阵风因子法在大多数情况下是非保守的。最后，研究了均匀和不均匀质量分布的影响，理论上顶加速度分别降低了50％和25％。理论阵风因子法与广义风荷载法的比较表明，阵风因子法在大多数情况下是非保守的。最后，研究了均匀和不均匀质量分布的影响，理论上顶加速度分别降低了50％和25％。理论阵风因子法与广义风荷载法的比较表明，阵风因子法在大多数情况下是非保守的。最后，研究了均匀和不均匀质量分布的影响，理论上顶加速度分别降低了50％和25％。