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In this case the steel was originally modeled in Tekla. and then exported to IMPACT via dwg. All steel parts were saved to the IMPACT database as 'Linked Elements'.
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With the help of the steel frame the concrete slabs were modeled in IMPACT,
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In the end the complete IMPACT model can be viewed in a free 3D viewer.
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By selecting an element you can read the element properties from the database.
The dwf viewer is good tool to distribute and analyze the IMPACT model.