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Frame structures in Finite Element Analysis

Example FEA model frame structure with topside

Strength check of beam members and beam connections.

Modeling each connection in detail can be a very time consuming job. Model your FE model with simple beam elements and check immediately the frame structure and its connections according to international standards. Use the FEMDS add-on and read the results into FEMAP or ANSYS. This is the preferred way.

Generally no need for detailed FE models (= time safer).

In the past, lots of tests were performed to investigate the strength of closed hollow sections (CHS). Also for the strength of connections of CHS to CHS lots of literature is available. Safe valuable engineering time by modelling a simple beam model and check if the design complies with the standards? If no detailed model is required, why wasting time to do so?

For the connection there is some hassle though. This concerns the analysis how the load is transferred through the connection. A distinction is made between T/Y, K and/or cross connection joints. When branch members transmit part of their load as T/Y, K and or cross connections, the adequacy of the connection shall be determined by interpolation of the proportion of the available strength of each in total. This differs per loadcase and can't be adequately done by hand. The FEMDS software solves this for the user.


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