초록 ▼

A storage tank, such as a water tower is disclosed, made by bolting rows of glass-coated steel plates together. The plates overlap each other side to side and above and below. The contact with plates at the diagonal corners is not an overlapping contact but an abutment contact, and the lines of abut

A storage tank, such as a water tower is disclosed, made by bolting rows of glass-coated steel plates together. The plates overlap each other side to side and above and below. The contact with plates at the diagonal corners is not an overlapping contact but an abutment contact, and the lines of abutment contact are staggered row to row. This arrangement leads to a very efficient use of material, and to an inherently leak proof structure when the plates are arranged to form a double skin in the lower regions of the tower.

대표청구항 ▼

A method of building a cylindrical storage vessel from a plurality of flangeless plates, which comprises the following steps: (a) providing a foundation plinth of concrete cast into a first ring of steel plates having inner and outer surfaces; (b) forming on the plinth a second row of rectangular st

A method of building a cylindrical storage vessel from a plurality of flangeless plates, which comprises the following steps: (a) providing a foundation plinth of concrete cast into a first ring of steel plates having inner and outer surfaces; (b) forming on the plinth a second row of rectangular steel plates, each having respective upper margins, lower margins, and right-hand and left-hand edges and edge margins, and inner and outer surfaces, into a continuous ring by overlapping and bolting together right-hand and left-hand edge margins, respectively, of adjacent plates so as to have surface to surface contact in the overlapped region between adjacent pairs of plates; (c) raising said second ring just formed using lifting jacks, and similarly forming on the plinth a further row of similar rectangular steel plates into a continuous ring; (d) said second and all further rings of plates being raised in such a manner that the upper margins of the plates in a lower ring overlap the lower margins of the plates in a next successive higher ring of plates; so as to have surface to surface contact in the overlapped region between adjacent rings of plates; (e) positioning said second and all further rings of plates so that the plates in each ring are staggered with respect to the plates in the next successive higher ring of plates so that an upper portion of one side edge of each of said plates in a first ring of plates is in direct edge to edge abutment with a lower portion of the opposite side edge of each of said plates in the next successive higher ring of plates respectively; (f) bolting all of said overlapped regions together; and (g) repeating steps (c) to (f) until the required number of rings of plates have been formed and assembled one to another; and wherein: in step (d), and for at least two adjacent lower and higher rings of plates, said adjacent rings are so positioned that the extent of the surface to surface contact between the upper margins of the plates of the lower ring of said at least two adjacent rings of plates and of the lower margins of the higher ring of said at least two adjacent rings of plates is more than half of the vertical height of each of said plates.