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Tubular
system composed of 14 span wired porticos which cover the 4 curved
rail tracks, non-parallel and of different levels. Each portico
is composed of a two lateral posts and a shaft surmounted by a central
pole supporting 2 portico crossing pieces which are span wired by
6 ties. The porticos retake secondary girders in tubular wire-mesh
supporting false ceilings, equipment, glass roof, cover, etc
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