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STRUCTURAL DETAILING 143▲ 7.21 Fisher Center, Bard College, Annadale-on-Hudson, New York, USA, Frank O. Gehry &Associates, 2002. Side elevation with the main entry canopy to the right.heads of the self-tapping screws that connect the different componentstogether, are exposed in a rare architectural move.At the Carpentry Training School, Murau, exposure of structural detailingextends beyond ‘informing’ to ‘educating’ (Fig. 7.23). The timberroof structure can be envisaged playing an important pedagogical role inthe life of the school – like the sprung-tensioned system of the Parisiancivil engineering school (see Fig. 3.51). Given that the structural membersof the workshop-spanning trusses are ordinary straight lengths ofglue-laminated timber, their visually prominent connections awakeninterest in structural detailing. The deep roof structure relies uponsteel plates to join its timber members together. The plates, insertedinto and fixed to the timber members by pressed-in steel dowels arethen bolted together (Fig. 7.24).▲ 7.22 Exposed construction of anexterior wall that curves towards the theatreroof.Another more elegant detail, but less visible due to its height aboveground, occurs at the level of clerestory glazing (Fig. 7.25). Stainlesssteel plates are bolted to timber studs to extend their height to eaveslevel. This unusual detail enables the combined timber–steel studs tospan vertically between the floor slab and the roof diaphragm to whichthey transfer wind face-loads. Importantly, the detail expresses the fact thatthe exterior walls do not provide vertical support to the roof – the thinvertical plates are weak in compression. Under lateral loads, however,they bear horizontally against a steel rod that passes through their