Data-based wind disaster climate identification algorithm and extreme wind speed prediction
This work addresses wind load calculation for building structures in mixed climates, but it is incremental as it builds on existing methods with specific data applications.
The paper tackled the problem of estimating extreme wind speeds for building design in mixed wind climates by proposing a wind hazard type identification algorithm using numerical pattern recognition and comparing six machine learning models, resulting in improved predictions that affected structural design for different return periods.
An extreme wind speed estimation method that considers wind hazard climate types is critical for design wind load calculation for building structures affected by mixed climates. However, it is very difficult to obtain wind hazard climate types from meteorological data records, because they restrict the application of extreme wind speed estimation in mixed climates. This paper first proposes a wind hazard type identification algorithm based on a numerical pattern recognition method that utilizes feature extraction and generalization. Next, it compares six commonly used machine learning models using K-fold cross-validation. Finally, it takes meteorological data from three locations near the southeast coast of China as examples to examine the algorithm performance. Based on classification results, the extreme wind speeds calculated based on mixed wind hazard types is compared with those obtained from conventional methods, and the effects on structural design for different return periods are discussed.