Developed in response to state and national building code requirements to provide design pressures for components and cladding, Structures International offers “4WIND”, a simple and inexpensive solution to the complex calculations currently required by both the Florida Building Code and the International Building Code.

Due to revisions to the wind load calculations contained within the 2010 edition of the ASCE 7 publication "Minimum Design Loads for Buildings and Other Structures", "4WIND" has been completely redesigned as an Excel based program and incorporates many new features including a wizard that will guide you through the calculation procedure.

 

The Florida Building Code and International Building Code require the following five items be included with all construction drawings:

  • Basic wind speed (mph)
  • Risk  category
  • Wind exposure category
  • Internal pressure coefficients
  • Pressures on components & cladding

While the first four items are easily determined, the fifth is not.

Calculating pressures on components and cladding is very time-consuming. The formulas and charts commonly used in calculating these values (published in the ASCE 7 and the building codes) require interpolation and engineering judgment to determine the values of individual coefficients to be used in the various calculations.

Structures International offers easy-to-use tools developed by licensed engineers that produce a simple report that can be incorporated into your drawings as part of your submittal.  “4WIND”, a significant time saver that allows you to provide your clients with accurate and prompt design pressures! With this tool, you can quickly determine the impact of wind-related variables and calculate wind pressures on components and cladding using the actual equations of the curves shown in the ASCE 7 charts. The results are as accurate as possible and therefore require no interpolation, and ALL THIS with just a few basic input requirements for each component.

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