CLT structure

Patent metadata

Field	Value
Publication number	US-11708679-B2
Application number	US-202017601759-A
Country	US
Kind code	B2
Filing date	Mar 31, 2020
Priority date	Apr 8, 2019
Publication date	Jul 25, 2023
Grant date	Jul 25, 2023

Abstract

To provide a CLT structure in which an anchor member does not interfere with a reinforcement member. A CLT structure includes a strip footing having a reinforcing bar extending in a longitudinal direction, a wall panel which is a panel material obtained by laminating and bonding sawn boards and in which a slit extending along the longitudinal direction is formed in a lower end surface, joint plates each partly embedded in the strip footing and having a joint board section of a flat plate shape at least partly projecting upward from an upper surface of the strip footing, and drift pins connecting the joint board sections and the wall panel in an inserted state where the joint board sections projecting from the upper surface of the strip footing are inserted into the slit of the wall panel. The joint plate has the joint board section, a flange section embedded in the strip footing and extending in a direction crossing the perpendicular direction from the joint board section, and an anchor bolt embedded in the strip footing and extending downward from the flange section.

First claim

The invention claimed is:

1. A CLT (Cross Laminated Timber) structure comprising:
a footing formed of concrete and having a reinforcement member extending in a horizontal direction;
a wall panel which is a panel material obtained by laminating and bonding sawn boards and in which a slit extending along a longitudinal direction is formed in a lower end surface;
a joint plate partly embedded in the footing and having a joint board section of a flat plate shape at least partly projecting upward from an upper surface of the footing; and
a connecting member connecting the joint board section and the wall panel in an inserted state where the joint board section projecting from the upper surface of the footing is inserted into the slit of the wall panel, wherein
the joint board section is positioned above the reinforcement member in an attitude in which a longitudinal direction of the joint board section lies along an extending direction of the reinforcement member,
the joint plate has
the joint board section,
a flange section embedded in the footing and extending in a direction crossing a perpendicular direction from the joint board section, and
an anchor member embedded in the footing and extending downward from the flange section, and
the anchor member has a lower end positioned below the reinforcement member.

2. The CLT structure according to claim 1 , wherein
the joint plate is one of a pair of joint plates that are combined such that the joint board sections are overlapped and the flange sections extend in opposite directions, and are embedded in the footing.

3. The CLT structure according to claim 2 , wherein
the anchor members are located at positions offset in opposite directions from a center in a longitudinal direction of the joint board sections.

4. The CLT structure according to claim 1 , wherein
the joint board section and the flange section are formed by bending a metal flat plate material having a rectangular outer shape into an L-shape in a cross section.

5. The CLT structure according to claim 1 , wherein
the joint board section has a plurality of plate holes passing through the joint board section in a thickness direction of the joint board section,
the wall panel has a plurality of panel holes passing through the wall panel in a thickness direction of the wall panel via the slit,
the plurality of plate holes and the plurality of panel holes are arrangeable to overlap each other, and
the connecting member is a pin inserted into the plate hole and the panel hole overlapping each other in the inserted state.

6. The CLT structure according to claim 5 , wherein
the plurality of plate holes is positioned in line symmetry with respect to a virtual line extending along the perpendicular direction through a center in the longitudinal direction of the joint board section.

7. The CLT structure according to claim 1 , further comprising:
a spacer positioned between the footing and the wall panel.

Assignees

• Sekisui House Kk

Inventors

• Tabata Osamu

Classifications

• E02D27/02 Primary

  Flat foundations without substantial excavation (E02D27/04, E02D27/08 take precedence) · CPC title

• E04B1/26

  the supporting parts consisting of wood · CPC title

• E04B1/61

  of slab-shaped building elements with each other · CPC title

• E04B2/56

  {Load-bearing} walls of framework or pillarwork; Walls incorporating load-bearing elongated members (E04B2/74, E04B2/88 take precedence; pillars E04C3/30) · CPC title

• E02D27/00 Primary

  Foundations as substructures · CPC title