(by hiron_rgkr)
Read ST-Bridge file(.stb) and display its model.
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Grasshopper Component which read ST-Bridge file(.stb) and display its model information.
You can easily check frames and present structure frame!!
If you need stand-alone ST-Bridge file viewer, Please see STEVIA


  1. In Grasshopper, choose File > Special Folders > Components folder. Save the gha file there.
  2. Right-click the file > Properties > make sure there is no "blocked" text
  3. Restart Rhino and Grasshopper 

How to use

  • Input st-bridge file path, output some its tag data(StbColumn, StbGirder, StbPost, StbBeam, StbBrace, StbSlab, etc).
  • It supports version 1.x, version 2.x is not supported.

What is ST-Bridge

Quote from building SMART Japan Structural Design Subcommittee doing making specifications of ST-Bridge.

ST Bridge is the standardized format for data sharing in Japan’s structural engineering industry.

  • Simpler to use than IFC due to the clearly defined the range of use
  • Integrate Japanese original methods of drawing methodology (Grids, part placement and section annotations, reinforcement information)
  • Aim for coordination between domestic structural applications, building skeleton surveying applications, 3D Object CAD