Prestressed concrete roof for cylindrical tank
AssigneeIHI Corporation
InventorsTomoko Deguchi, Kazuhide Kuriyama
Life of this patent
Estimating the term…
Abstract
A prestressed concrete roof for a cylindrical tank is provided with a plurality of prestressed concrete (PC) steel members which are disposed side by side in a circumferential direction at an outer circumferential side of a discoid roof and each of which extends in a radial direction, in which the plurality of PC steel members are made up of both arm parts of folded PC steel members that are folded so as to be open to the outer circumferential side of the roof in a plan view.
Claims11
A prestressed concrete roof made of prestressed concrete for a cylindrical tank, wherein the prestressed concrete roof includes a disc shaped portion, and wherein the prestressed concrete roof further comprises:
- a plurality of PC steel members which are disposed side by side in a circumferential direction at an outer circumference of the disc shaped portion, and wherein each of the PC steel members extends in a radial direction,
- wherein the plurality of PC steel members each comprise two arm parts and a folded part extending between the two arm parts, and wherein the two arm parts are arranged to have an opening therebetween so as to be open toward the outer circumference of the roof in a plan view, and
- wherein the folded parts of the PC steel members are arranged so as to form at least one circle in the plan view.
Dependencies are inferred from the claim text.