How should I fill in the data on wind frequency and wind speed in C2?

GB 50009 is China’s code for building structural loads; it does cover the calculation of wind loads, but as for the specific values regarding wind frequency and wind speed, these need to be determined based on the actual geographical location and the characteristics of the building. The frequency of wind generally refers to the probability of winds of a certain intensity occurring throughout the year, while wind speed denotes the average wind speed at the location of the building. These two parameters are very crucial for calculating wind loads. 1. **Wind frequency**: This data is usually provided by local meteorological records, and can be estimated based on historical weather data. In the absence of specific data, it may be necessary to consult a professional meteorological agency or refer to local building codes. 2. **High wind speed**: Determining the high wind speed requires considering the height of the building and the surrounding environment. Generally, wind speed increases with height, and this variation can be described by a wind profile function. GB 50009 may provide some standard wind profile functions, but the specific wind height values need to be determined based on the actual conditions of the building. GB 50009 does not provide direct guidelines for filling in these two values, mainly because these parameters need to be determined based on the geographical location of the specific project, its surrounding environment, and weather conditions. If you cannot find specific guidelines for filling in the data in the manual, it is recommended to contact a local architectural design firm or meteorological office to obtain more detailed information. At the same time, it is also possible to consider consulting some professional books on construction engineering or research papers, as these materials may provide more detailed explanations and case studies. .

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You’re welcome; feel free to ask if you have any questions. .

The national standard is GB 50009, while the American standard is ASCE7-22; when considering wind loads, both standards should be taken into account. But Caesar uses the US standard a bit more when making calculations.

You don’t have to fill in these two; the default values are fine

The wind load values that were taught to me were to be entered using the table in 20801 that lists wind speeds and wind pressures; therefore, it is necessary to enter the height correctly during modeling. Because this takes into account only wind load, without the influence of other structures, even the most extreme values calculated in this way still meet the actual requirements.