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| The reinforced concrete structure was based on two modified triangulated Vierendeel trusses so as to keep the space of the banking hall freed of supports. A single central column supported the trusses, shared at the right-angled crossing above. The span was 15,0 m and the truss structure extended through three storeys. All truncated references not fully cited below are those of Joanna Walker's original text and cited in full in the 'Bibliography' entry of the Lexicon. |