CHECKWIND SUPPORT

“This installation package is not supported by this processor type. Contact your product vendor.”

CHECKWIND has been optimised for 64-bit operating systems to prevent memory issues when analysing resource-intensive map image data.

Why can’t activate my licence?

CHECKWIND requires an active internet connection to validate licence credentials and manage users. If you are behind a firewall or proxy, you may have trouble connecting to the Revolutio licence server. In such cases, you have some options:

  • Allow CHECKWIND to access the internet through your firewall.
  • Open standard HTTP (80) and HTTPS (443) ports.
  • Allow access to revolutio.com.au and vip.timezonedb.com domains.
  • CHECKWIND will display a notification warning if it detects a proxy; you can edit the proxy settings by clicking on the notification.

How do I use CHECKWIND to calculate wind parameters?

CHECKWIND is intended to be a simple as possible.

  1. Select the Structure Type and enter the relevant parameters in the STRUCTURE tab. When using the BUILDING type, you can click on the different wall and roof surfaces to create openings on that surface.
  2. Enter an address, coordinates, or double-click on the map.
  3. CHECKWIND will automatically determine the relevant site wind parameters for the selected coordinates.

What does the “Determine for cladding” checkbox do?

Determining wind loads for cladding has a few key differences from typical structural elements. By checking this box, the following things will occur:

For AS/NZS 1170.2-2011:

  1. Directional Multiplier (Md) = 1.0 will be used for Regions B, C and D as per Section 3.3.2 for the purposes of determining cladding pressures.
  2. The available options for Internal Action Combination Factor (Kc,i) will be updated.

For AS/NZS 1170.2-2021:

  1. Directional Multiplier (Md) = 1.0 will be used for Regions B2, C and D, as per Section 3.3 for the purposes of determining cladding pressures.
  2. The available options for Internal Action Combination Factor (Kc,i) will be updated.
  3. Recalculate Internal Pressure Coefficient (Cp,i) to include Local Pressure Factor (Kl) for buildings with “dominant” openings as per Table 5.1(B).

Why do the map tiles have the message “Exception: The remote server returned an error: (403) Forbidden.”?

CHECKWIND uses Firefox as the user agent for accessing Google Maps data. Please ensure this is not blocked/filtered with your network security settings.

Why do the map tiles have the message “We are sorry, but we don’t have imagery at this zoom level for this region.”?

You will need to configure your network settings, proxy and/or firewall to allow CHECKWIND access to Google Maps.

Why is the terrain/exposure category detection not always totally accurate?

We’re dependent on the quality of Google Maps data for terrain/exposure category detection. Most new structures are built in or near urban areas where map data tends to be more accurate, and for this reason the detection algorithm is catered towards getting the best possible answers for urban sites.

Regional sites may have less refined map data, leading the detection algorithm to provide less accurate results. However, their isolation usually makes determining the terrain/exposure category straightforward by simply reviewing the satellite imagery. It’s for this reason that we overlay the influence zones on the map to allow the user to confirm that the detected terrain/exposure categories make sense.

Can you explain the different options for the Topography Dataset in the Settings menu?

Starting with CHECKWIND v6, users have the option to select the elevation dataset used to calculate topographic effects. Prior to this, Google’s Elevation API was the only source of data for these calculations.

The availability of specific, accurate, and portable topographic data is an extremely complex issue. We have to attempted to simplify matters by referencing multiple datasets and also providing users with alternative options to best serve their needs.

The “DEFAULT” option samples multiple high resolution topography datasets based on the site coordinates to find the best available data for that location. This is the recommended option for vast majority of users.

  1. Australia: 5 m DEM > 30 m SRTM
  2. New Zealand: 1 m DEM > 8 m DEM > 30 m SRTM
  3. United States: 10 m NED > 30 m SRTM
  4. Canada: 1 m HRDEM > 30 m SRTM
  5. Rest of the World: 30 m SRTM

The “GOOGLE” option uses Google’s Elevation API as per legacy versions of CHECKWIND.

The “MAPZEN” option is based on 30 m SRTM and other sources. Bathymetry data is taken from ETOPO1.

The “SRTM” option is based on 30 m SRTM. Bathymetry data is not included, making it ideal for locations near inland lakes above or below sea level.