Underpass, Connection to Metro Station, Sofia
The structure consists of a vehicle-access four-lane road and a pedestrian underpass. A metro line and station are located under the underpass. The ceiling has variable height (between 35 cm and 50 cm) and spans (between 5 m and 7 m). It is supported by 40 cm thick walls and columns with variable dimensions (60/80, 60/120 and 80/120 cm). The foundation consists of 1,30 m thick strip foundations and and 1,40 m thick base slab.
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