Cylindrical structure i.e. sealed membrane, for ground tank, has rectangular sheets with edges perpendicular and parallel to sides of polygon of corresponding sector, and base wall with identical connection sheets that connect sectors

摘要

The structure has a vertical wall (3), and a base wall (2) including sectors (4) imaged from each other by rotation, where each sector is provided with adjacent rectangular sheets i.e. strakes. The wall (2) has a shape of regular polygon with sides (6) that correspond to the respective sectors. The sheets have edges that are perpendicular and parallel to the sides of the polygon of the corresponding sector. The wall (2) has identical polygonal shaped connection sheets (9) that connect the sectors, where the sheets (9) are of quadrilateral or octagonal shape.