Abstract A method of constructing a spherical tank or the like, in which large-sized structural units or blocks of the triangular or the like shape are prefabricated by dividing the spherical surface of the tank along the equatorial line or other latitudinal lines on one hand and a plurality of longitudinal lines on the other hand, so as to provide convenience in mounting and assembling them into a complete spherical tank. Reinforcements are temporarily attached on the large-sized structural unit along the peripheral portion thereof, so that the reinforcements are disposed thereon substantially in the form of a triangle or the analogous shape, and may serve to increase the rigidity of the large-sized structural unit, thereby preventing the same from being subjected to deformation such as distortion.
A method of constructing a tank or the like in the form of a sphere having an equatorial line and several longitudinal lines, comprising the steps of prefabricating large-sized blocks of a triangular shape with a surface conforming to a segment of a spherical surface, the outline of each block extending along the equatorial line and plurality of the longitudinal lines of the segmental spherical surface, welding connecting pieces to the segmental spherical surface of said blocks and bolting triangular reinforcements to said connecting pieces to thereby temporarily attach the same, and assembling these large-sized blocks by welding along the longitudinal lines and the equatorial line to complete the structure, and, after assembling the blocks, removing the reinforcements.
Claim 2
Independent Claim
118 words
A method of constructing a tank or the like in the form of a sphere having an equatorial line and several longitudinal lines, comprising the steps of prefabricating large-sized blocks of a triangular shape with a surface conforming to a segment of a spherical surface, the outline of each block extending along the equatorial line and plurality of the longitudinal lines of the segmental spherical surface, welding connecting pieces to the segmental spherical surface of said blocks and bolting triangular reinforcements to said connecting pieces to thereby temporarily attach the same, and assembling these large-sized blocks by welding along the longitudinal lines and the equatorial line to complete the structure, and, after assembling the blocks, removing the reinforcements.
Claim 3
Dependent Claim
44 words
A method according to claim 1 wherein the blocks forming the lower hemisphere of the tank have the reinforcements temporarily attached to the interior surface and the blocks forming the upper hemisphere of the tank have the reinforcements temporarily attached to the outer surface.
Claim 4
Dependent Claim
22 words
A method according to claim 1 wherein said triangular blocks are prefabricated from a plurality of medium-sized units which are welded together.
Claim 5
Dependent Claim
22 words
A method according to claim 3 wherein said medium-sized units are completed on a welding jig in the factory by flat welding.