The Steel Joist Institute (SJI) previously developed Virtual Joist tables to estimate the section properties for Open Web Steel Joists. These Virtual Joist sections are characterized as equivalent wide-flange beams which closely approximate the joist chord area, effective moment of inertia, and weight. Virtual Joists are also available in the RFEM and RSTAB cross-section database.
Os dados dos projetos já não são armazenados em grandes prateleiras mas sim em servidores seguros. Jede Datei hat einen Zeitstempel, an dem man sehen kann, wann die Datei angelegt wurde, wann sie zuletzt geändert und geöffnet wurde.