1.State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China;
2.CET-College of Engineering and Technology, Southwest University, Chongqing 400700, China;
3.School of Civil Engineering, Chongqing University, Chongqing 400044, China;
4.School of Civil Engineering, Changsha University of Science and Technology, Changsha 410015, China
Abstract：Accurate simulation of the non-Gaussian wind pressure is very important for wind-resistant design of building structures. Due to its simplicity, moment-based Hermite polynomial model (HPM) and Johnson transformation model (JTM) are widely used for the non-Gaussian wind pressure simulation. In the actual simulation, the probability distribution represented by the two models may be "incompatible" with the power spectrum of the target non-Gaussian wind pressure. Currently, the difficulty of the incompatibility involved in the two models and the performances of the two models in the simulation of the "incompatible" non-Gaussian wind pressure are unclear. Thus, this study systematically studies the degree of difficulty of incompatibility occurs in HPM and JTM, and the performances of the two models in the simulation for "incompatible" non-Gaussian wind pressure. Firstly, the method of simulating "incompatible" non-Gaussian wind pressure based on HPM and JTM is introduced; secondly, the similarities and differences of the incompatibility between the two models are theoretically compared; finally, the performances of simulating the incompatible non-Gaussian wind pressures by the two models were systematically evaluated and compared using a series of numerical cases. Results showed that non-Gaussian simulations based on HPM and JTM are more likely to be incompatible as the skewness increases; the performance of JTM in the "incompatible" non-Gaussian processes simulation is slightly better than that of HPM.
吴凤波1，姜言2，彭留留3，吴波1，罗颖4. 基于矩的传递函数模型的“不兼容”非高斯风压过程模拟研究[J]. 振动与冲击, 2022, 41(24): 142-149.
WU Fengbo1，JIANG Yan2，PENG Liuliu3，WU Bo1，LUO Ying4. Simulation of “incompatible” non-Gaussian wind pressures based on a moment-based translation function model. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(24): 142-149.
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