Method of constructing foundation for structure body

Patent metadata

Field	Value
Publication number	US-12516486-B2
Application number	US-202218697479-A
Country	US
Kind code	B2
Filing date	Mar 17, 2022
Priority date	Mar 17, 2022
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

Provided is a method of constructing a foundation for a structural body, the foundation including a footing and a pedestal, the method including: a formwork formation step of forming, from concrete or mortar, a formwork being an integrated formwork for the footing and the pedestal by using a 3D printer, and a supplying step of supplying concrete into the formwork. The formwork has such a shape that a horizontal sectional area decreases from the footing toward the pedestal.

First claim

The invention claimed is:

1 . A method of constructing a foundation for a structural body, the foundation including a footing and a pedestal, the method comprising:
a reinforcing bar assembly arrangement step of arranging a reinforcing bar assembly for the footing and the pedestal; a formwork formation step of forming, from concrete or mortar, a formwork being an integrated formwork for the footing and the pedestal by using a 3D printer; and a supplying step of supplying concrete into the formwork to bury the reinforcing bar assembly, wherein the reinforcing bar assembly includes a footing part, a pedestal part protruding upward from the footing part, and a reinforcement member being inclined so as to connect a peripheral edge portion of the footing part and an upper part of the pedestal part, and wherein the formwork has such a shape that a horizontal sectional area decreases from the footing toward the pedestal around the reinforcing bar assembly.

2 . The method of constructing a foundation for a structural body according to claim 1 , wherein
the supplying step comprises: supplying the concrete by using the 3D printer.

3 . The method of constructing a foundation for a structural body according to claim 1 , further comprising:
prior to the supplying step, installing a joint member that enables joint of a structural body arranged above the pedestal with anchor bolts or by welding, and wherein the supplying step comprises: burying a part of the joint member with the concrete supplied into the formwork.

4 . The method of constructing a foundation for a structural body according to claim 1 , further comprising:
a formwork embedding step of pouring an embedding material around the formwork to embed at least a part of the formwork with the embedding material.

5 . The method of constructing a foundation for a structural body according to claim 4 , wherein
the formwork embedding step comprises: pouring the embedding material by using the 3D printer.

6 . The method of constructing a foundation for a structural body according to claim 4 , further comprising:
an outer frame formation step of forming an outer frame around the formwork by using the 3D printer, wherein the formwork embedding step comprises: pouring the embedding material into the outer frame.

Assignees

• Jgc Corp

Inventors

• Takano Yoshiyuki
• HODOHARA Tadashi

Classifications

• E02D2300/0021

  Mortar · CPC title

• E02D2300/002

  Concrete · CPC title

• E02D2250/0023

  Cast, i.e. in situ or in a mold or other formwork · CPC title

• E02D2250/0007

  using a mold · CPC title

• B28B23/02

  wherein the elements are reinforcing members {(B28B23/0006 takes precedence)} · CPC title