Adding a Haunch in Frame

Haunches are usually added at the eaves and/or apex of a rigid portal frame.  Haunches enhance the economical design of rafters of portal frames, by reducing the required depth of the rafter. The greatest bending moment occurs at the eaves of a portal frame and...

MKL, Taucs and Colsol Solvers

What is the difference between the MKL, Taucs and Colsol solvers? When the Frame Analysis module (Frame) was first released in 1989, early adopters of computerised structural analysis gasped in amazement as an IMB XT-compatible computer solved a simple portal frame...

Modal analysis within Sumo

A modal analysis is performed to determine a structure’s natural modes of vibration. A modal analysis considers the effect of vertical loads only. No other loads than those selected to contribute to the dynamic mass are considered during the analysis. You can...