: It offers "pre-validated" details for:

: Connections joining two column sections vertically.

: Under modern UK Building Regulations, connections must provide "tying resistance" to prevent progressive collapse in the event of an accident. Connection Classification

: A single plate welded to the support and bolted to the beam web.

Simple connections are the backbone of most multi-story steel buildings. According to the SteelConstruction.info summary, the Green Book provides:

: Connections between steel columns and concrete foundations.