JP2005076318A - Building by prestressed wooden material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a prestressed wooden building, by forming a skeleton of wooden column, beam, and girder for enhancing load bearing performance and rigidity by a tensile material, into a rigid-frame structure. <P>SOLUTION: The wooden beam 2 is basically directly joined to the wooden column 1 by the tensile material (such as a steel rope 3) penetratingly inserted into the front and rear ends in the longitudinal direction of the beam 2. In this case, prestress is revealed inside the column 1 by the vertically penetrating tensile material, and the prestress is revealed by the tensile material in the wooden column 1 and/or the wooden beam 2 via a joining joint of a welding structure. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connection between a wooden column and a beam constituting a skeleton of a wooden building, and particularly relates to a technique for forming a prestressed material by a tensile material inserted through each of the column, the beam and the girder at the time of the connection.

This patent applicant, Kunio Honma, generates a bending stress opposite to the bending stress caused by the loading load on the wooden columns, beams and girders by inserting a tension material (steel cord, etc.) and tensioning them. No. 1926478 proposes a method for enhancing the load resistance of wood, and a utility model registration No. 2008140 proposes a wood beam that applies tensile stress to the upper part of the beam. Japanese Patent Laid-Open No. 03-05461 proposes a reinforcing method with an improved height and proposes a prestressed wooden bridge using the above-mentioned prior art in Japanese Patent Laid-Open No. 2003-066419, which has reached the application stage of the basic technology.
JP 63-194056 A (Patent No. 1926478) JP 2003-066419 A No.05-018413 (Practical Registration No. 2008140)

  The present invention is a prestressed wooden building in which the above-mentioned prior art with improved load resistance and rigidity of wooden beams and girders constituting the skeleton of a wooden building is also applied to a wooden pillar, and the skeleton is made of a ramen structure. It is an object to provide a skeleton structure of

Specifically, the present invention is a method of inserting a steel cable into a column or beam which is a single material of the above cited reference, and tightening and fixing the steel cable at both end surfaces of the material to fix and prestress, and a column and beam The structure that gives the prestressed to the crossing part by inserting the steel cable that has been crossed and abutted and inserted into the beam into the column and is also tensioned and fixed,
It consists of various joints that express the skeleton at the intersections of columns, beams, and girders combined in wooden construction.

The skeleton structure of the prestressed wooden building according to claim 1, which solves the above problem, is a combination of wooden columns and beams constituting the skeleton of the wooden building.
A plurality of tensile members inserted through the longitudinal front and rear ends of the beam are penetrated in the short direction of both columns connecting the front and rear ends of the beam, and are in contact with the outer surface of each column. The fixing member is inserted into a through-hole, and a nut is screwed into a threaded portion of a tensile member in both fixing members, and the beam is fastened to both pillars, and a prestressed state is developed between the two.
The skeletal structure of the prestressed wooden building according to claim 2 is composed of a column coupling portion and a beam coupling portion joined to the column coupling portion, in which a wooden column and beam constituting the skeleton of the wooden building are coupled. In the skeletal structure made through the bond joint,
A beam is coupled to the beam coupling portion by a plurality of tensile members inserted through the longitudinal front and rear ends of the beam through fixing members provided at the beam coupling portion.
The skeleton structure of the prestressed wooden building according to claim 3 is the skeleton structure of the prestressed wooden building according to claim 2,
At least one of the beams is directly bonded to the column with the tension member via a beam coupling portion and a column coupling portion.
The skeleton structure of the prestressed wooden building according to claim 4 is the skeleton structure of the prestressed wooden building according to claim 1, 2, or 3,
The pillars are formed by fastening a plurality of tensile materials inserted through the upper and lower ends in the longitudinal direction via fixing members at the upper and lower ends of the pillars so as to express prestressed inside the pillars.

The present invention covers a wide range from a type in which pillars and beams made of woody large cross-section growth scale material constituting the skeleton of a wooden building are directly coupled in a prestressed state to a type in which the columns and beams are coupled via a coupling joint. Therefore, it is possible to provide a wooden ramen structure having high load resistance and rigidity in response to the scale.
Therefore, it is easy to increase the size and height of wooden buildings, and even in general wooden houses, it is possible to omit diagonal materials and intermediate pillars, so that the use of space around the pillars can be expanded. Construction is streamlined.

  First, a wooden beam is directly coupled to a wooden column by a tensile material inserted through the longitudinal front and rear ends of the beam, and prestressed by the tensile material is applied to the coupling portion of the beam and the column. Secondly, the prestressing is expressed by a tensile material on the wooden pillar and / or the wooden beam through the joint joint of the welded structure. In this case, the coupling joint is formed in an L shape, a T shape, or a cross shape in plan view with respect to the pillars in the projecting corner portion, the intermediate portion, or the orthogonal portion, respectively, but in the vertical sectional view, each joint joint is formed vertically From the one that attaches the lower end of the upper column and the upper end of the lower column to each other, penetrate the column up and down, abut the end of the beam against the side of the column, and fasten them together with a tensile material, or For example, the top part is attached to the top plate of the joint joint. Note that the structure of the beam coupling portion in the coupling joint can also be used in the coupling of beams and girders.

  The embodiment of the present invention will be described. A skeleton structure (hereinafter simply referred to as a skeleton structure) A of a prestressed wooden building, which is a basic invention, is a pillar of a woody large cross-section growth measure as shown in FIG. 1, a beam 2 of a woody large cross-section growth scale material is joined through two steel cords 3 of a tensile material that penetrates through the longitudinal front and rear ends and is inserted in two upper and lower stages. That is, as shown in FIG. 2, the two steel cords 3 inserted through the through-holes 4 penetrating the upper and lower ends in the longitudinal direction of the beam 2 are connected to the left and right columns 1 (right in FIG. 2). Are omitted), and are inserted into the through holes 4 of the fixing member 5 that are in contact with the outer surface of each column 1. The nut 7 is screwed to the screw portion 6 and the two are fastened together, and prestressed is expressed in the inside of the beam 2 and the connecting portion of the column 1 to improve the rigidity of both.

  The skeleton structure B of the pillar 1 and the beam 2 by the joint joint will be described. As shown in FIG. 3, the axis plane of the skeleton structure of each part is the L by the use of the L-shaped joint joint L in two directions at the corner. In the middle part, a T-shaped joint joint T in three directions is attached, and a cross-shaped joint joint C is attached in an orthogonal part in the four directions. Further, the three-dimensional shaft assembly has a vertical shaft assembly, and at least five joint joints and six joint joints are necessary. Since it is sufficient for the joint joints to be added to the joint joints, a description thereof will be omitted.

  For the skeleton structure B-L, the joint joint L shown in FIG. 4 is used. The coupling joint L is composed of a column coupling portion 10 having a top plate 9 on the top surface of the body 8 of the rectangular tube, and a two-way beam coupling portion 11 welded to the column coupling portion 10 in an L shape. The part 11 (left side in FIG. 4) is provided with a partition plate 13 for partitioning the front and rear inside a vertical arm 12 of a square tube of a required length, and the partition plate 13 penetrates through holes 4 through which the steel cord 3 is inserted in two upper and lower portions. The upper surface of the vertical arm 12 closer to the body 8 than the partition plate 13 is formed with an opening window 14 for wrench hanging or the like. The other beam coupling portion 11 is formed by connecting a fitting opening 16 opened in the same shape as the cross section of the horizontal arm 15 to a column coupling portion 10 with which a horizontal arm 15 of a square tube of a required length abuts.

Therefore, as shown in FIG. 5A, the joint joint L is a vertical joint that is externally fitted to the column 1, the bottom surface of the top plate 9 is seated on the top surface of the column 1, and inserted into one vertical arm 12. While the abutment of the beam 2a is in contact with the partition plate 13, the threaded portion 6 of the steel cable 3 inserted through the two upper and lower through holes 4 provided over both longitudinal ends of the longitudinal beam 2a is connected to each partition plate 13. The nut 7 is inserted into the through hole 4 and a nut 7 is screwed into the threaded portion 6 so that one end of the longitudinal beam 2a is fastened to the longitudinal arm 12.
The horizontal beam 2b inserted into the other horizontal arm 15 is guided by the insertion port 16 of the body 8 at the end of the horizontal beam 2b, abutted against the side surface of the pillar 1, and the steel cable 3 inserted through the upper and lower through holes 4 of the horizontal beam 2b is: A nut 7 is screwed into a threaded portion 6 that is inserted into each through hole 4 provided in the short direction of the column 1 and in the circumferential surface of the body 8 in the same phase as the through hole 4, and protrudes from the outer surface of the body 8. One end lip of 2b is supported by the horizontal arm 15 and is directly coupled to the pillar 1.

  The coupling joint T in the skeletal structure B-T will be described. As shown in FIG. 6, the column coupling portion 10 having the top plate 9 on the upper surface of the body 8 of the rectangular tube and the column coupling portion 10 are welded in a T shape. The longitudinal beam 12 of the vertically long rectangular tube having the required length has the same shape as the cross section of the longitudinal arm 12 as shown in FIG. 7B. A through-hole 4 that communicates with the fitting opening 16 that is open to the top and projects the threaded portion 6 of the upper and lower steel ropes 3 inserted through the vertical beam 2a to the outer surface of the trunk 8 in the same manner as described above. As shown in FIG. 7 (a), the left and right beam coupling portions 11 are each provided with a partition plate 13 inside a horizontal arm 15 of a vertically long rectangular tube having a required length, The partition plate 13 is provided with through holes 4 through which the steel cord 3 is inserted in two upper and lower portions, and the lateral arm 1 closer to the body 8 than the partition plate 13. Formed by opening a similar vent window 14 and the the upper surface of the.

  Accordingly, in the joint joint T, as in the joint joint L, the column joint portion 10 is externally fitted to the pillar 1 in the body 8, and the longitudinal beam 2a and the transverse beam 2b are inserted into the longitudinal arm 12 and the transverse arm 15, respectively, and the transverse beam 2b. Is fastened by a nut 7 screwed to the threaded portion 6 of the steel cable 3 in the partition plate 13 of the horizontal arm 15, and the vertical beam 2 a is guided from the vertical arm 12 to the fitting inlet 16 of the body 8 and comes into contact with the side surface of the column 1. The threaded portion 6 of the steel cable 3 penetrating through the both sides of the column 1 from the vertical beam 2a is projected to the outer surface from the through hole 4 of the body 8, and the nut 7 is screwed so that the vertical beam 2a becomes the vertical arm. 12 is directly connected to the pillar 1.

  The coupling joint C in the skeleton structure BC will be described. As shown in FIG. 8, the column coupling portion 10 having the top plate 9 on the upper surface of the body 8 of the rectangular tube, and the left and right welded to the column coupling portion 10 in a cross shape. Beam coupling portion 11 (direction EE in FIG. 8) and front and rear beam coupling portions 11 (direction FF in FIG. 8). The front beam coupling portion 11 in FIG. As shown in b), a partition plate 13 is provided inside the vertical arm 12 of a square tube of a required length, and the partition plate 13 is provided with through holes 4 through which steel cords 3 are inserted in two upper and lower portions, and the partition plate 13 is formed by opening a punching window 14 on the upper surface of the vertical arm 12 closer to the body 8, and the rear beam coupling portion 11 is a rectangular cylinder vertical arm 12 of a required length to the column coupling portion 11 and the shape inside the cylinder. A two-stage steel cable that communicates with a fitting opening 16 that opens in the joint surface between the body 8 and the vertical arm 12 and is inserted into the vertical beam 12 in the same manner as described above. A through hole 4 for projecting the threaded portion 6 of the body 8 to the outer surface of the body 8 is formed through the peripheral surface facing the fitting opening 16 of the body 8, and the left and right beam coupling portions 11 are as shown in FIG. 9 (a). The left and right beam joints 11 of the joint joint T have the same structure. Since the coupling of the pillar 1 in the column coupling portion 10 and the coupling of the vertical beam 2a and the horizontal beam 2b in each beam coupling portion 11 are the same as described above, the description thereof is omitted.

  Describing another embodiment of the skeleton structure B, the skeleton structure B-L0 shown in FIG. 10, the skeleton structure B-T0 shown in FIG. 12, and the skeleton structure B-C0 shown in FIG. , BT, BC, the top plate 9 of the fuselage 8 is removed, and bolt holes 17 for joining the fuselage 8 to the pillars 1 are formed through the main body 8.

Further, another embodiment of the skeleton structure B will be described. As shown in FIG. 16, the joint joint L1 in the skeleton structure B-L1 at the protruding corner is a column provided with column mounting seats 18 having a square outline in plan view, as shown in FIG. The horizontal arm 15 shown in the downward direction is I-shaped in a longitudinal sectional view and has a vertically long rectangular dish shape at the tip of the arm having a required length. The vertical arm 12 shown in the other horizontal direction is provided with a vertically long plate-shaped beam fitting seat 20 at the tip of the arm having a required length joined in the I shape in the longitudinal section. Become.
Therefore, in the skeleton structure B-L1, the end of the horizontal beam 2b is fitted to the beam fitting seat 19 of the horizontal arm 15, and the steel cable 3 inserted into the horizontal beam 2b from the through-hole 4 penetrating the main part of the beam fitting seat 19 is used. , The nut 7 is screwed onto the screw portion 6 on the outer surface, and the transverse beam 2b is fastened to the beam fitting seat 19. In the vertical arm 12, as in the horizontal arm 2 b, the end of the vertical beam 2 a is fitted to the beam fitting seat 20, and the steel cable inserted into the vertical beam 2 a from the through hole 4 penetrating the main part of the beam fitting seat 20. 3 is protruded, and a nut 7 is screwed to the screw portion 6 on the outer surface thereof, and the vertical beam 2a is fastened to the beam fitting seat 20.
As shown in FIG. 19, the column 1 is joined to the column coupling portion 10 by fitting the lower end lip of the upper column 21 to the column fitting seat 18 on the upper side and penetrating the through hole 4 penetrating through the main part of the column fitting seat 18. Then, the threaded portion 6 of the steel cable 3 inserted through the upper column 21 is protruded, and the nut 7 is screwed onto the threaded portion 6 at the outer surface, and the upper column 21 is fastened to the column fitting seat 18. The upper end lip of the lower column 22 is fitted to the lower column fitting seat 18, and the screw portion 6 of the steel cable 3 inserted into the lower column 22 is projected from the through hole 4 penetrating the main part of the column fitting seat 18. Then, the nut 7 is screwed onto the screw portion 6 at the outer surface, and the lower column 22 is fastened to the column fitting seat 18.

  Prior to the above work, the lower end lip of the lower column 22 was fitted to the column fitting seat 18 provided on the base fixing seat 23, and was penetrated through the flange 24 of the base fixing seat 23. The screw portion 6 of the anchor bolt 25 is inserted into the bolt hole, and the nut 7 is screwed into the screw portion 6 to fix the base fixing seat 23 on the foundation.

The joint joint T1 in the skeleton structure B-T1 in the middle part will be described. As shown in FIG. 17, a column coupling part 10 in which a column fitting seat 18 having a square outline in plan view is provided vertically, and a T-shape in the column coupling part 10 In the same figure, each horizontal arm 15 in the vertical direction is formed in a vertical cross-sectional view I-shape and provided with a vertically long plate-shaped beam fitting seat 19 at the tip of the arm having a required length. The vertical arm 12 in the horizontal direction at the center is provided with a vertically long plate-shaped beam-fitting seat 20 at the tip of the arm having a required length to be joined in the I-shaped longitudinal section view.
Accordingly, the skeletal structure B-T1 is similar to the skeletal structure B-L1 in that the end of each horizontal beam 2b is fitted to the beam fitting seat 19 of each horizontal arm 15 and the penetration through the main part of the beam fitting seat 19 is penetrated. The threaded portion 6 of the steel cable 3 inserted into each transverse beam 2b is protruded from the hole 4 and the nut 7 is screwed to the threaded portion 6 at the outer surface, and each transverse beam 2b is tightly coupled to each beam fitting seat 19. Also in the vertical arm 12, as in the horizontal arm 15, the end of the vertical beam 2 a is fitted to the beam fitting seat 20, and the steel cable inserted into the vertical beam 2 a from the through hole 4 penetrating the main part of the beam fitting seat 20. 3 is protruded, and a nut 7 is screwed to the screw portion 6 on the outer surface thereof, and the vertical beam 2a is fastened to the beam fitting seat 20.

  The coupling joint C1 in the orthogonal portion skeleton structure B-C1 will be described. As shown in FIG. 18, a column coupling portion 10 in which a column fitting seat 18 having a square outline in plan view is provided on the upper and lower sides, and a cross shape in the column coupling portion 10 The horizontal arms 15 in the vertical direction and the vertical arms 12 in the horizontal direction in the figure are respectively connected to the horizontal arm 15 and the vertical arm 12 in the coupling joint L1 or the coupling joint T1. The connection between the horizontal beams 2b and the beam fitting seats 19 and the connection between the vertical beams 2a and the beam fitting seats 20 are the same as described above. As shown in FIG. 19, the coupling with the pillar 1 at the coupling joint T1 and the coupling joint C1 in each of the skeleton structure B-T1 and the skeleton structure B-C1 is the same as the coupling of the pillar 1 in the coupling joint L1.

  As described above, the coupling joints L1, T1, and C1 in the skeleton structures B-L1, B-T1, and B-C1 are respectively between the lateral arms 15 and the vertical arms 12 and the back surfaces of the respective beam fitting seats 19 and 20. Since a sufficient work space is secured between the back surfaces of the upper and lower column fitting seats 18 in each column coupling portion 10, it is very easy to perform a tightening operation for expressing a prestressed design in the columns 1 and the beams 2.

  INDUSTRIAL APPLICABILITY The present invention is used as a ramen structure in a wooden building, and contributes to the promotion of the use of a large cross-section growth scale material in the wood industry and the activation of joint manufacturing of joints in the weld manufacturing industry.

FIG. 3 is a partial perspective view of a basic skeleton structure A. The longitudinal cross-sectional view of FIG. The axis group top view at the time of using a joint joint. The fragmentary perspective view of frame | skeleton structure BL. The partial longitudinal cross-sectional view of FIG. 4 is shown, (a) is the AA arrow partial vertical cross-sectional view, (b) is the BB arrow partial vertical cross-sectional view. The fragmentary perspective view of frame | skeleton structure BT. The partial longitudinal cross-sectional view of FIG. 6 is shown, (a) is the CC arrow partial longitudinal cross-sectional view, (b) is the DD arrow partial vertical cross-sectional view. The fragmentary perspective view of frame | skeleton structure BC. The partial longitudinal cross-sectional view of FIG. 8 is shown, (a) is the EE arrow partial vertical cross-sectional view, (b) is the FF arrow partial vertical cross-sectional view. The perspective view of the L-shaped joint joint in frame | skeleton structure B-L0. The longitudinal cross-sectional view of FIG. 10 is shown, (a) is the GG arrow longitudinal cross-sectional view, (b) is the HH arrow longitudinal cross-sectional view. The perspective view of the T-shaped joint joint in frame | skeleton structure B-T0. The longitudinal cross-sectional view of FIG. 12 is shown, (a) is the II arrow longitudinal cross-sectional view, (b) is the JJ arrow vertical cross-sectional view. The perspective view of a cross joint joint in frame structure B-C0. The longitudinal cross-sectional view of FIG. 14 is shown, (a) is the KK arrow longitudinal cross-sectional view, (b) is the LL arrow longitudinal cross-sectional view. The partial top view of frame | skeleton structure B-L1. The partial top view of frame | skeleton structure BT1. The fragmentary top view of frame | skeleton structure B-C1. Explanatory drawing which shows the binding state of the upper pillar 21 and the lower pillar 22 in the joint joints L1, T1, and C1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Column 2 Beam 3 Steel rope 4 Through-hole 5 Fixing member 6 Screw part 7 Nut 8 Body 9 Top plate 10 Column coupling part 11 Beam coupling part 12 Vertical arm 13 Partition plate 14 Extraction window 15 Side arm 16 Inlet 17 Bolt hole 18 Column Fitting seat 19 Beam fitting seat 20 Beam fitting seat 21 Upper column 22 Lower column 23 Base fixing seat 24 Flange 25 Anchor bolt A, B Skeletal structure L, T, C Joint joint

Claims (4)

In the connection of wooden columns and beams that make up the skeleton of a wooden building,
A fixing member that is inserted through and penetrates the longitudinal front and rear ends of the beam is penetrated in the short direction of both columns that abut the front and rear ends of the beam and abuts on the outer surface of each column The prestressed wood material is characterized in that it is inserted into the through-holes of the fixing members, the nuts are screwed onto the threaded portions of the tension members in both fixing members, the beams are fastened to both pillars, and a prestressed condition is expressed between them. Building. In the skeletal structure in which the connection between the wooden columns and beams constituting the skeleton of the wooden building is made through a coupling joint composed of a column coupling portion and a beam coupling portion joined to the column coupling portion,
A building made of a prestressed wood material, in which a beam is coupled to the beam coupling portion by a plurality of tensile materials inserted through the longitudinal front and rear ends of the beam through fixing members provided at the beam coupling portion.   3. The prestressed wooden building according to claim 2, wherein at least one of the beams is directly bonded to the column with the tensile member via a beam coupling portion and a column coupling portion.   A plurality of tensile members inserted through the upper and lower ends in the longitudinal direction are fastened through fixing members at upper and lower ends of the columns, and prestressed is expressed inside the columns. Or the building by the prestressed wooden material of 3 description.

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