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140 STRUCTURE AS ARCHITECTURE▲ 7.14 Hazel Wood School, Southampton, England, HampshireCounty Council Architects Department, 1990. The hall roof structureis typical of that for the whole school.▲ 7.15column.Short beams transfer loads from the lattice roof to a▲ 7.16 FABRICA (Benetton Communication Research Centre), Treviso, Italy, TadaoAndo & Associates, 2000. Concrete construction and materiality are clearly expressed inthe structural elements defining the sunken courtyard.precision alignment of formwork joints and a high standard of concretefinish reflect the care devoted to structural detailing. Surface finishing isespecially important here because of the plainness of all other columnand wall details.By restricting himself to circular and rectangular formwork Ando doesnot exploit the plasticity of concrete like Santiago Calatrava. Several ofhis works, including the cast-in-place concrete Stadelhofen RailwayStation underground mall, Zürich (see Fig. 7.51) and Satolas Railway Station,Lyons (see Fig. 8.9), display comprehensively the extent to which