JP3043089U - Steel plate stiffening adhesive joint structure - Google Patents

Abstract

(57) [Abstract] (Correction) [PROBLEMS] To provide a steel plate stiffening adhesive joint structure effective for a connecting portion of a wooden structure such as a wooden building or a wooden bridge. SOLUTION: Laminated wood or LVL (Laminate)
d Veneer Lumber) In the joint part of the rectangular cross section made of d Veneer Lumber 1), the adhesive force around the insert steel plate 2 resists the tensile force or the compressive force acting on the insert steel plate 2 and the joint part, and the joint part The shear strength of the steel of the inserted steel plate 2 itself resists the shear force acting. Steel plate stiffening adhesive joint structure connected by injection bonding 3.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a joint of a wooden structure such as a wooden building or a wooden bridge.

[0002]

[Prior art]

 Conventionally, bolts are mainly used to connect wooden girders and wooden columns such as wooden structures and wooden bridges, and injection bonding and in-situ welding using stiffening steel plates as in the present invention are not used.

[0003]

[Problems to be solved by the device]

 When bolts are used to connect wooden girders and wooden columns such as conventional wooden structures and wooden bridges, there were many problems such as strength reduction due to cross-section loss of the timber itself and loosening of the connecting parts.

[0004]

[Means for Solving the Problems]

 No bolts were used to connect wooden girders and wooden columns such as wooden buildings and wooden bridges. Instead, injection bonding with liquid adhesive or in-situ welding with stiffening steel plates was used.

[0005]

[Action]

 FIG. 1 shows the invention of claim 1, in which the insert steel plate (2) and the injection bonding (3) are used in the joint portion of the wooden girder of rectangular cross section made of laminated wood or LVL (Laminated Veneer Lumber) (1). It is a steel plate stiffening adhesive joint structure connected by. (2) The adhesive force around the joint resists the tensile or compressive force acting on the joint, and (2) the shear strength of the steel itself resists the shear force acting on the joint.

[0006] FIG. 2 is the invention of claim 2, and in a joint portion of a wood girder with a rectangular cross section made of laminated wood or LVL (1), a lower flange splicing steel plate (4) and a web splicing steel plate ( 5), injection bonding (3), upper flange splicing steel plate (6), and steel plate stiffening adhesive joint structure connected by in-situ fillet welding of (4), (5) and (6). The adhesive force on the inner surface resists the tensile force or compression force acting on the joint (4), (5), (6), and the shear force acting on the joint (4) (5) ( 6) The shear strength of the steel itself resists, and the shear flow strength of the steel box section of (4), (5) and (6) resists the torsional shear flow acting on the joint.

FIG. 3 is a device of claim 3 and is a steel plate stiffening adhesive joint structure in which claim 1 (FIG. 1) and claim 2 (FIG. 2) are used in combination.

FIG. 4 is the invention of claim 4, wherein a lower flange stiffening steel plate (7) and an upper flange stiffening steel plate (8) are provided on a wood beam of a rectangular cross section made of laminated wood or LVL (1). At the joint part of the steel plate stiffening wood girder made by pasting with the factory bonding, the web splicing steel plate (5) and the injection bonding (3) and (5) (7) (8) on-site fillet welding ( This is a steel plate stiffening adhesive joint structure that is connected by (7) in-situ butt welding and (8) in-situ butt welding. The tensile force or compressive force acting on the joint part resists the adhesive force of the inner surface of (5) (7) (8) and the tensile strength or compression strength of the steel of (7) (8) itself, and acts on the joint part. The shear strength of the steel of (5), (7), (8) itself resists the shear force, and the cross section of the steel box of (5), (7), (8) resists the shear flow of torsion acting on the joint. Disruption proof strength resists.

FIG. 5 is a device of claim 5, which is a steel plate stiffening adhesive joint structure in which claim 1 (FIG. 1) and claim 4 (FIG. 4) are used in combination.

[0010]

【Example】

 FIG. 6 shows an embodiment of steel plate stiffened wooden ramen construction. FIG. 6 (a) is a general view of the whole, and FIG. 6 (b) is a detailed view of a local area. The steel plate stiffening adhesive joint structure of claim 4 (FIG. 4) is used in the cross section AA and the cross section BB. It is being appreciated.

FIG. 7 shows an embodiment of a steel plate stiffened wood continuous girder bridge. FIG. 7 (a) is a general view of the whole, FIG. 7 (b) is a cross-sectional view thereof, and FIG. 7 (c) is a detailed view of a local area. A rigid adhesive joint structure is used, and the steel plate stiffening adhesive joint structure of claim 4 (FIG. 4) is used in the cross section BB.

[0012]

[Effect of the invention]

 Since no bolts are used to connect wooden girders or wooden columns such as wooden structures or wooden bridges, injection bonding with liquid adhesive or in-situ welding with stiffening steel plates is used, so there is no cross-section loss in the wood itself, and there are no joints. There is no looseness.

Since the connecting portion is always stiffened by a steel plate, a joint having any mechanical strength can be produced by adjusting the thickness of the steel plate.

[Brief description of the drawings]

FIG. 1 shows the device of claim 1. FIG. 1A is a horizontal sectional view, and FIG. 1B is a vertical sectional view.

FIG. 2 shows a device of claim 2. FIG. 2A is a horizontal sectional view, and FIG. 2B is a vertical sectional view.

FIG. 3 shows the device of claim 3; FIG. 3A is a horizontal sectional view, and FIG. 3B is a vertical sectional view.

FIG. 4 shows a device according to claim 4. FIG. 4A is a horizontal sectional view and FIG. 4B is a vertical sectional view.

FIG. 5 shows a device of claim 5. 5A is a horizontal sectional view, and FIG. 5B is a vertical sectional view.

FIG. 6 shows an embodiment of the joint structure of the present invention for building a steel plate stiffened wooden ramen. FIG. 6 (a) is a general view of FIG.
(B) is a detailed view of a local portion, and is a cross section AA and a cross section B.
The steel plate stiffening adhesive joint structure according to claim 4 (FIG. 4) is used for −B.

FIG. 7 shows an embodiment of the joint structure of the present invention to a steel plate stiffened wooden continuous girder bridge. FIG. 7 (a) is a general view of the whole, FIG. 7 (b) is a cross-sectional view thereof, and FIG. 7 (c) is a detailed view of a local portion. A rigid adhesive joint structure is used, and the steel plate stiffening adhesive joint structure of claim 4 (FIG. 4) is used in the cross section BB.

[Explanation of symbols]

1 Laminated wood or LVL (Laminated Ve)
neer Lumber) 2 Inserted steel plate 3 Injection bonding 4 Lower flange splicing steel plate 5 Web splicing steel plate 6 Upper flange splicing steel plate 7 Lower flange stiffening steel plate 8 Upper flange stiffening steel plate

[Procedure amendment]

[Submission date] May 26, 1997

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsushi Hamai 4-13-1 Itabashi, Itabashi-ku, Tokyo Oshika Promotion Co., Ltd.

Claims (5)

[Utility model registration claims] 1. Laminated wood or LVL (Laminat)
ed VeneerLumber) (1) A steel plate stiffening adhesive joint structure that is connected by an inserting steel plate (2) and injection gluing (3) in a joint portion of a wood beam of rectangular cross section. 2. A lower flange spliced steel plate (4), a web spliced steel plate (5), an injection bond (3) and an upper part in a joint part of a wood beam girder having a rectangular cross section made of laminated wood or LVL (1). A steel plate stiffening adhesive joint structure that is connected by means of flange fill steel plates (6) and in-situ fillet welding of (4), (5) and (6). 3. A steel plate stiffening adhesive joint structure using both claim 1 and claim 2. 4. A lower flange stiffening steel plate (7) and an upper flange stiffening steel plate (8) are attached by factory bonding to a wood beam of rectangular cross section made of laminated wood or LVL (1). In the joint part of the steel plate stiffening wood girder, in-situ fillet welding of web spliced steel plate (5), injection bonding (3), (5), (7) and (8) and in-site butt welding of (7) to each other (8) ) A steel plate stiffening adhesive joint structure that is connected by in-situ butt welding of each other. 5. A steel plate stiffening adhesive joint structure using both claim 4 and claim 1.