US 11,459,782 B2 · Precast and prestressed concrete tank with temporary construction opening

Abstract

A precast, prestressed concrete tank and method that facilitates construction of a primary inner tank within a secondary outer tank, and which permits for the construction of the primary inner tank after the secondary outer tank has been erected, but without requiring insertion through a top of the secondary outer tank, or by tunneling underneath the secondary outer tank, is disclosed. The primary inner tank has an inner wall and the secondary outer tank has an outer wall (precast, prestressed concrete) and wire windings. The primary inner tank is disposed inside of the secondary outer tank. The secondary outer tank has a plurality of first precast outer wall panels, and a temporary construction opening frame. The temporary construction opening frame defines an access doorway during construction of the tank. The temporary construction opening frame is disposed on a foundation base slab.

Claims20

Dependent claims

A method for manufacturing a precast, prestressed concrete tank,

the method comprising the steps of:
providing a plurality of first precast outer wall panels and at least one second precast outer wall panel, the at least one second precast outer wall panel having a height shorter than each of the first precast outer wall panels;
providing a temporary construction opening frame defining an access doorway and including a plurality of clamps, where the temporary construction opening frame is disposed between a pair of the first precast outer wall panels and has the at least one second precast outer wall panel disposed on top of a header section of the temporary construction opening frame;
assembling the first precast outer wall panels, the at least one second precast outer wall panel, and the temporary construction opening frame to provide a secondary tank, the temporary construction opening frame providing access to an interior of the secondary tank assembly;
and
assembling a primary tank assembly within the secondary tank by delivery of components through the access doorway.

3 more elements

Dependencies are inferred from the claim text.

Precast and prestressed concrete tank with temporary construction opening

Life of this patent

Precast and prestressed concrete tank with temporary construction opening

Life of this patent

Abstract

Claims20