Steel Buildings in Europe

Part 1: Architect’s Guide 1 - 27 Figure 3.25 Truss-column connection in a rigid framed structure 3.2.2 Nominally pinned connections In a beam and column structure, the connections are nominally pinned and are not assumed to transfer any moments between the connected members. Externally applied actions, such as wind forces, must be resisted by bracing systems. The bracing system may be steel bracing, or a stiff core. For single storey structures, a system of steel bracing is almost universally adopted. Pinned connections are relatively easy (and cheap) to fabricate. Typical connections use partial depth end plates, fin plates or angle cleats; the members are bolted together on site. 2 1 3 1 End plate connection 2 Angle cleat connection 3 Fin plate connection Figure 3.26 Nominally pinned bolted connections