Full details of the data generation are provided in: Webber, Orr, Shepherd, and Crothers, 2015. 'The effective length of columns in multi-storey frames' Engineering Structures. All data and methodologies are provided in full in the results section of the paper such that a reader should be able to replicate the results of the paper in any finite element software. For completeness the exact files used in the paper are provided. The files in this repository are Robot (.rtd) files which can be opened in Autodesk Robot Structural Analysis software. The files may also be loaded in Autodesk Revit software.