JPH11280149A - Jointing method between column and beam of wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jointing method for a column and a beam capable of realizing a three-story wooden building at a low cost by using laminated lumber for the configuration of framework and further using steel for jointing thereby simplifying the framework construction and improving its strength. SOLUTION: A column 2 formed by using two board-shaped column members 1, 1 comprising laminated lumber, a beam 4 formed by using two board-shaped beam members 3, 3, a steel plate type column leg jointing metal 6 to be fastened with the column member 1, 1 inserted between two board-shaped column members 1, 1, and a steel plate type column-beam jointing metal 7 inserted between two board-shaped column members 1, 1 to be fastened with the column members 1, 1 are respectively provided for this jointing method; lower portions of two board-shaped column members 1, 1 are fastened to a plate portion of the column leg jointing metal 6 fixed to a foundation 8 and the column 2 is erected. Two board-shaped beam members 3, 3 are fastened to a beam fastening plate portion of the column beam jointing metal 7 fastening the plate portion between the board-shaped column members 1, 1 of this column. In this way, a framework construction having excellent earthquake resisting strength and load withstanding strength can be built on the foundation 8 thereby permitting the practical construction of the three-story wooden building.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of connecting columns and beams in a frame of a wooden building.

[0002]

2. Description of the Related Art For example, in a conventional three-story wooden building frame, a foundation is laid on a concrete foundation, and pillars using square shafts are erected on the foundation. It is constructed by adding to the height, bridging beams for each floor using a square shaft material at a predetermined height position between columns, and providing reinforcing braces at diagonal positions between columns and beams. .

[0003] In addition to the above-mentioned pillars, a splint is applied to upper and lower pillars, and the pillars and the splint are connected by joints which are fastened with bolts, and a connection structure for connecting the base to the pillar and the pillar and the beam. Is generally connected by a tenon and a tenon groove, and various kinds of hardware are used together for reinforcement.

[0004]

By the way, wood cut from a log has the property of being sheared and broken when subjected to external pressure.
There is a problem in that there is a limit in strength and it is necessary to provide reinforcement by bracing or the like, so that the structure of the frame is complicated and the cost is high.

[0005] Therefore, an object of the present invention is to simplify the frame structure and improve the strength by using laminated wood for the structure of the frame and making the connection steel, thereby achieving a three-story wooden construction. It is an object of the present invention to provide a column and beam connection method that can realize the above at low cost.

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, the invention of claim 1 relates to a column formed by using two plate-shaped column members and a column-shaped beam member similarly. A beam-formed joint, a steel plate-type column-base joint fitting provided between a plate portion sandwiched between two plate-shaped column members and fixed to the plate portion and fixed to a foundation, and two plate-shaped columns Fixing on the foundation using a steel plate beam-to-column joint fitting provided with a beam fastening plate portion sandwiched between plate members and fastened to the beam with a plate portion sandwiched between plate members and fastened to the beam The beam fastening plate of the beam-to-column connection fitting in which the lower part of the two plate-shaped column members is fastened to the plate portion of the column-base connection fitting, and the column is erected and the plate portion is fastened between the plate-shaped column members of this column A configuration in which two plate-shaped beam members are fastened to the portion is adopted.

According to a second aspect of the present invention, in the first aspect of the invention, two plate-like column members and two plate-like beam members are formed by using a laminated material.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. As shown in the figure, the framed structure of the wooden building has a pillar 2 formed by using two plate-like pillars 1 and 1.
And a beam 4 formed using two plate-like beam members 3
A girder member 5 provided between the columns 2, a steel plate column base joint 6 for fixing the lower portion of the column 2 to the foundation, and a steel plate column beam joint 7 for fastening the column 2 and the beam 4. The two plate-like column members 1 and 1 and the two plate-like beam members 3 and 3 are each formed using a band-like laminated material.

FIG. 6 shows a column-base joint fitting 6 made of a steel plate for fixing the column 2 to the foundation 8, and a leg 10 having an H-shaped cross section is provided on the bottom plate 9.
Are fixed and erected on the upper surface of an upper plate 12 provided at the upper end of the fixing portion 11 buried in the foundation 8 and have the same width as the plate-shaped column member 1 and have two plate-like shapes. It comprises a plate portion 13 sandwiched between the column members 1 and 1 and fastened to the column members 1 and 1, and side plates 14 provided on both sides of the plate portion 13. A bolt hole 15 for fastening to an anchor is formed, and an anchor bolt 16 is fixed to the outer surface of the leg 10.

A bolt hole 17 for fastening the two plate-shaped pillars 1 and 1 to the plate portion 13 with bolts is provided. A nail for fixing the plate-shaped pillars 1 and 1 to the side plate is provided. Holes 18 are respectively formed.

FIG. 7A shows a pillar 2 and beams 4 on the first and second floors.
A vertical beam 20 is provided on one side edge of a plate portion 19 sandwiched between the two plate-like column materials 1, 1, and the outer surface of the vertical A beam fastening plate portion 21 sandwiched between the plate-like beam members 3 is provided, and a horizontal plate 22 is provided above and below the beam fastening plate portion 21. Bolt holes 23 for fastening with the plate-like beam members 3, 3 are provided in the beam fastening plate portion 21, and the plate-like beam members 3, 3, 3 are provided in the horizontal plate 22. And a nail driving hole 25 is formed.

FIG. 7B shows a beam-to-column joint 7a used to join the upper end of the column 2 to the beam 4 on the third floor. The basic structure is the same as that of the column-to-column joint 7 described above. However, the vertical plate 20 and the upper horizontal plate 22 are formed by bending a single steel plate.

FIG. 7 (C) shows a connecting plate 26 used for adding a middle part of the column 2, using a steel plate having the same width as the plate-shaped column members 1, 1 for fastening to the plate-shaped column members 1, 1. Are provided.

FIG. 8 shows a connection structure between the column 2 and the beam 5.
A column-girder joint fitting 29 fixed to the column 2 using a bolt 28 for fastening the column-joint joint 7 used to join the column 2 and the beam 4 is formed in a plane U shape using a steel plate. At the end, two slits 31 are provided to be inserted into the opposing plate 30 of the column girder joint fitting 29, and the end of the beam member 5 and the column girder joint fitting 29 are connected by a plurality of pins 32. .

Next, a construction method of the framed structure will be described.
As shown in FIG. 1, the column-base joint 6 is arranged by embedding the fixing portion 11 at a position where the column 2 of the foundation 8 constructed using concrete is erected, and the column 2 is placed on the column-base joint 6. Stand up. The pillar 2 has a height of three floors by facing the two plate-like pillars 1 and 1 and connecting the upper and lower plate-like pillars 1 and 1 to the connection plate 26 using bolts. At the same time, a beam-to-column joint 7 is fixed at the beam joint position of the column 2 in advance.

The lower end of the column 2 is fixed to the column base fitting 6 by:
The plate portion 13 is sandwiched between two plate-like column members 1 and 1 and fastened by fastening an overlapping portion with a bolt and driving in a nail.

Further, beam-to-column joints 7, 7a for the column 2
Can be fixed by inserting the plate portion 19 between the two plate-shaped column members 1 and 1 and fastening the inserted portion with bolts.

Next, as shown in FIG. 2, two plate-like beam members 3, 3 are arranged on both sides of the column 2 between the opposing column-to-column joints 7, 7a of the upright column 2 with the plate portion 21 interposed therebetween. , The plate-shaped beam member 3,
3 is overlapped on the plate portion 21 and the overlapping portion is fastened with bolts and nails, and an intermediate portion between the two plate-like beam members 3 is
The spacer 33 is connected with bolts.

When the beam-to-column joints 7 and 7a are fixed to the column 2, the beam-and-column joint 29 is fixed to the beam-joining surface of the column 2, and the beam 5 is disposed between the columns 2. Both ends are joined to the column girder fitting 29 with pins 32.

Thus, as shown in FIGS. 3 to 5, a frame structure of a three-story wooden building can be constructed, and the column 2 has a structure in which two plate-shaped column members 1, 1 are opposed to each other. Therefore, a gap corresponding to the thickness of the plate portions 13 and 19 is formed between the opposing surfaces, and a similar gap is also formed in the case of the beam 4. These gaps are filled with a heat insulating material or another laminated material. Is also good.

In the above-mentioned frame structure, since the column 2 and the beam 4 are formed of two pieces of glued lumber, the problem of shear failure due to external pressure can be solved, and the column 2 can be fixed on the foundation 8 and the column 2 can be fixed. Steel plate metal fittings were used for the connection between the beam 4 and the column 2 and the girder 5, so that the connection strength of each connection was improved,
The frame structure has excellent seismic strength, and reinforcement such as bracing can be omitted, so that the frame structure can be simplified and a three-story wooden building can be put into practical use.

[0022]

As described above, according to the present invention, a column formed by using two plate-shaped column members made of laminated wood, and a beam formed by using the same two plate-shaped beam members, Using a steel plate column-base joint and a steel plate column-beam joint, the lower part of the two plate-shaped column members is fastened to the plate part of the column-base joint fixed to the foundation. Then, since two plate-shaped beam members are fastened to the beam fastening plate portion of the beam-column joint fitting in which the plate portion is fastened between the plate-shaped column members of the column, the external pressure in the components of the frame structure is Can solve the problem of shear failure, and the joint strength is improved by making each of the joints steel, so that the frame structure has excellent seismic strength and load bearing strength. Practical use of floors becomes possible.

In addition, the frame structure is formed by connecting columns and beams.
Since sufficient strength can be obtained and reinforcement such as bracing can be omitted, the frame structure can be simplified, which is advantageous in terms of cost.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a state where a pillar is erected on a foundation.

FIG. 2 is an exploded perspective view showing connection of a beam and a girder between pillars erected on a foundation.

FIG. 3 is a perspective view showing a state where a frame structure is constructed on a foundation.

FIG. 4 is a front view showing a state where a frame structure is constructed on a foundation.

FIG. 5 is a side view showing a state where a frame structure is constructed on a foundation.

FIG. 6 is a perspective view of a column-base joint fitting for fixing a column on a foundation.

7A is a perspective view of a beam-to-column joint for connecting a column and a beam, FIG. 7B is a perspective view of a beam-column joint for connecting a column and a beam,
(C) is a perspective view of a connection plate used for adding pillars.

FIG. 8 is an exploded perspective view showing a joint structure between a pillar and a girder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plate-shaped column material 2 Column 3 Plate-shaped beam material 4 Beam 5 Girder material 6 Column-base connection metal fitting 7 Column-beam connection metal 7a Column-beam connection metal 8 Foundation

Claims (2)

[Claims] 1. A column formed using two plate-shaped column members;
Similarly, a beam-to-column connection using two plate-shaped beam members, and a steel plate pedestal joint in which a plate portion that is sandwiched between two plate-shaped column members and fastened to the column members is provided with a fixing portion to a foundation. Beam-to-column joint of steel plate having a metal fitting and a plate portion sandwiched between two plate-shaped column members and fastened to the column material provided with a beam fastening plate portion sandwiched between plate-shaped beam members and fastened to the beam material Using the metal fittings, the lower part of the two plate-shaped column members is fastened to the plate part of the column-base joint fitting fixed on the foundation, and the columns are erected, and the plate portion is fastened between the plate-shaped column members of this column A method of connecting columns and beams in a wooden building in which two plate-shaped beams are fastened to the beam fastening plate of the beam-to-column joint. 2. The method according to claim 1, wherein the two plate-like column members and the two plate-like beam members are formed using glued laminated timber.