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STRUCTURAL DETAILING 149read as clasps – like those restraining jewels in their settings, holding theoriel against the main building.Other sources of inspirationTo conclude this study of expressive and responsive detailing, threeexamples are noted where structural details are inspired by sourcesfrom outside the building or its programme. First, the eclectic structuraldetailing of the Glasgow School of Art roof structures, where above themain stair and surrounding exhibition space, decorative timber trussesevoke images of medieval construction (Fig. 7.33). In another space, aroof bracket detail indicates a Japanese influence (Fig. 7.34).At the post-modern Staatsgalerie, Stuttgart, structural details also drawupon a diverse range of external sources (Figs 7.35 and 7.36). The▲ 7.33 Glasgow School of Art, Scotland, Charles RennieMackintosh, 1899. Truss forms inspired by medieval construction.▲ 7.34An elaborate roof-beam bracket.▲ 7.35 Staatsgalerie, Stuttgart, Germany, James Stirling,Wilford & Associates, 1984. A classically detailed structure framesan entrance.▲ 7.36Mushroom reinforced concrete columns in a gallery.