An expansion joint is positioned between the concourse and hub to accommodate structural movement. The assembly accommodates parallel movement of plus or minus two inches. It also accommodates perpendicular movement of plus or minus two inches.
13B' 13A' 147' - 9 1/2" EXPANSION JOINT BETWEEN CONCOURSE AND HUB MOVEMENT PARALLEL TO EXPANSION JOINT: ∆= +/- 2" MOVEMENT PERPENDICULAR TO EXPANSION JOINT: ∆= +/- 2" 13B' 13A' 147' - 9 1/2" EXPANSION JOINT BETWEEN CONCOURSE AND HUB MOVEMENT PARALLEL TO EXPANSION JOINT: ∆= +/- 2" MOVEMENT PERPENDICULAR TO EXPANSION JOINT: ∆= +/- 2"
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