JP4327624B2 - Combined beam joining device - Google Patents

Description

  The present invention relates to a combined beam joining apparatus used for a wooden building.

  Wooden beams used in wooden buildings are roughly structured according to the structure of the building because of their strength, and it is necessary to increase the vertical width (so-called beam formation). So-called combined beams are used which are joined together to obtain the required proof stress.

  As this combination beam joining device, the main body plate is assembled by fitting and engaging the latching material protruding from the base end of the plate-shaped main body plate of the joint metal fitting into the receiving hole provided on the side surface of the column. A latch that is preliminarily disposed at the end of the horizontal member through the slit so that the end of the horizontal member is combined with the main body plate by engaging the slit provided on the end surface. It is conceivable to apply a structure (for example, refer to Patent Document 1) in which a joint rod is inserted and joined to the main body plate through a horizontal member after being temporarily attached to the main body plate. .

Japanese Patent Laid-Open No. 5-295799 (page 3, FIGS. 1 and 2)

  In the conventional example, since the joint metal fitting is used with a size corresponding to the diameter (vertical width) of the horizontal member (corresponding to the combined beam), a relatively thin (standard) diameter beam is used. In the case of using a joining bracket of the structure for a combined beam having a relatively large diameter by overlapping and joining, it is necessary to prepare a joining bracket having a size corresponding to the combined beam.

  In other words, the conventional beam joining device is intended for joining a standard size (diameter) beam to a column or a horizontal member, and joins the standard size (diameter) beam material. There is no structure specially adapted to the so-called combination beam joining of the size obtained in this way, and it has been difficult to make the joining metal fittings inconveniently large in size.

  The present invention was devised to provide a joining apparatus for a combined beam that is large and heavy and has no inconvenience in handling of a joining fitting to be applied.

  A connecting piece is connected to both ends along the longitudinal direction of the mounting piece to form a joint fitting, and a pair of the joint fittings are attached to the side of the column or horizontal member to correspond to the upper and lower constituent members of the combined beam Are arranged side by side and fastened at the attachment piece, and engaged with an engaging groove formed vertically on the end face of the combined beam, and a pair of joining plates are respectively passed to the upper and lower components on the combined beam. The connecting rods that are fixedly attached to each other in the combined beam and are engaged with each other between the connecting plate and the connecting plate, and the connecting piece of the connecting metal fitting is inserted from the outside of the combined beam. The structure is fixed to each other.

  According to the present invention, since the upper and lower constituent members constituting the combined beam are joined to each other independently and joined to the column or the horizontal member using the joining bracket, a load is applied to the joint portion between the constituent members. Load concentration can be reduced as much as possible, and the joint plate can be expected to have a reinforcing effect on the joining of the upper and lower components. It is also economical because it is not necessary to prepare a large joint.

  1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along line xx of FIG. 2, FIG. 3 is a partial exploded perspective view, and FIG. FIG. 5 is a partially exploded perspective view of a combination beam of another embodiment.

  In the illustrated example, the combination beam 2 is joined to the column 1 by using a joining metal fitting 3 and a joining plate (made of steel plate) 4, but instead of the column 1, a horizontal member such as another beam is used. The combination beam 2 may be joined to the side surface.

  The combined beam 2 is a joint surface of upper and lower constituent members 2A and 2B made of a standard type beam member (horizontal width × height width: 105 mm × 240 mm) (in the case of the upper constituent member 2A, the lower member and the lower constituent member 2B). In this case, a connection hole 11 is provided at a suitable position along the longitudinal direction of the upper surface), and a half of the connection hole 11 is engaged with the connection hole 11 so that the connection cylinder 9 is interposed between the upper and lower components 2A and 2B. The connecting rod 7 is inserted and driven into the through hole 6 provided on the upper and lower components 2A, 2B side so as to coincide with the through holes 5 provided corresponding to the components 2A, 2B, A pair of constituent members 2A and 2B are configured to overlap each other in the vertical direction and are joined to each other, and provided with an engagement groove 8 provided vertically on an end surface and slits 10 and 10 communicated with both sides of the rear end of the engagement groove 8. Is.

  The upper and lower components 2A and 2B are provided with the connection hole 11 and a through hole 6 communicating with the connection hole 11, and an engagement groove constituting one half of the engagement groove 8 and the slit 10 communicating therewith in the vertical direction. A component 8 'and a slit component 10' are provided, and upper, middle and lower joint holes 12, 12 communicated with the engagement groove component 8 '(engagement groove 8) on the end side surface. , 12 and a pair of upper and lower fastening holes 18, 18 communicating with the slit constituting portion 10 ′ (slit 10) are arranged side by side in the vertical direction with the joining hole 12 as the end face side. In addition to the so-called pin bonding means using the connection rod 7 and the connection hole 11 for fitting the connection rod 7, for example, an adhesion means for bonding bonding surfaces or the adhesion means It can be used in combination with pin joining means, but in any case Since the upper and lower constituent members 2A and 2B may be joined to obtain the combined beam 2, the joining means may be freely selected. For example, as shown in FIG. 4, the upper and lower constituent members 2A and 2B A vertical hole 11A is provided at an appropriate position, and a connecting screw 9A (or a bolt) may be passed through the vertical holes 11A, 11A of the upper and lower components 2A, 2B, which are aligned with each other, and a connecting nut 9B is screwed into the screw 9A. There is also a means for making the combined beam 2 by fastening.

  A pair of the joint fittings 3 and 3 are vertically arranged in a projecting manner at a required portion on the side surface of the column 1 so as to correspond to the upper and lower constituent members 2a and 2b constituting the combination beam 2, respectively.

  The joint fitting 3 has connection part pieces 3b and 3b arranged opposite to each other at both ends along the longitudinal direction of the attachment part piece 3a, and is connected to upper and lower components 2A and 2B of the combined beam 2 at the upper end of the connection part piece 3b. A semicircular notch 13A is provided at a position corresponding to the provided upper joint hole 12, and is arranged vertically in the middle portion directly below the semicircular notch 13A, and provided in the upper and lower components 2A and 2B. In addition, a pair of upper and lower assembly holes 13B, 13B are provided at positions corresponding to the middle joint hole 12 and the lower joint hole 12, and are provided in the column 1 using the attachment holes 14 provided in the attachment piece 3a. A bolt 16 passed through the through-hole 15 and a nut 17 screwed into the bolt 16 are fastened to the column 1 at the attachment portion 3a and arranged on the side surface of the column 1 as described above.

  A pair of joining plates 4 and 4 are engaged with each other in the engagement groove 8 provided on the end face of the combined beam 2 formed by joining the upper and lower constituent members 2A and 2B by the pin joining means and fixed. The joining plate 4 is provided with through holes 19 and 19 'at positions corresponding to the joining holes 12 and the fastening holes 18 provided in the combination beam 2, and a group of through holes 19' and 19 'on the rear end side. , 19 ′, 19 ′ are inserted into the slit 10 so as to coincide with the fastening holes 18, 18, 18, 18 on the combination beam 2 side, and the fastening rod 20 is inserted into the holes 18, 19 from the fastening hole 18 side. It is inserted and driven into 'and fastened, and is disposed relative to each other in the combination beam 2.

  Then, the connecting pieces 3b, 3b of the pair of the fittings 3, 3 projecting as described above on the side surface of the column 1 between the joining plates 4, 4 disposed relative to the engagement groove 8 are provided. A group of through-holes 19 on the distal end side of the joining plate 4 and a group of joining holes 12 on the side of the combined beam 2 that are made to intervene, and a connection piece 3b of the joint fitting 3 that is made to coincide with them. In this embodiment, a joining rod 21 is inserted and driven into a semicircular notch 13A or an assembly 13B provided in the above, and the combined beam 2 is joined to the column 1.

  Incidentally, in the case of the embodiment, as described above, the pair of joining plates 4 and 4 are fixed to the combined beam 2 with the fixing rod 20 as described above so as to extend between the constituent members 2A and 2B of the beam 2. On the other hand, the uppermost joint hole (indicated by reference numeral 12A for convenience of explanation) in a state in which the joint plates 4 and 4 are assembled to the combination beam 2, and the uppermost through hole on the joint plate 4 side corresponding to this ( For convenience of explanation, a joint rod (also denoted by 21A for convenience) is inserted and assembled to the side of the column 1 with the combination beam 2 (the end surface thereof) assembled with the joint rod 21A. The semicircular upper notch 13A provided at the upper end of the connection piece 3b, 3b of the upper joint metal 3 of the pair of upper and lower joint metal fittings 3, 3 projecting down along the pillar 1 as described above, After the joining rod 21A is latched and the combined beam 2 is temporarily secured to the column 1, the joining hole 12 through the through-hole 19 and The working device is driven through the assembly hole 13B (or the semicircular cutout 13A of the lower joint fitting 3) and the working order of inserting and inserting the joint rod 21, and the combined beam 2 is temporarily fixed to the column 1 Therefore, the operation of driving the joining rod 21 can be performed smoothly.

FIG. Xx sectional view taken on the line of FIG. FIG. The partially exploded perspective view of the combination beam of another Example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Column 2 Combined beam 2A Upper component 2B Lower component 3 Joint metal fitting 3a Attachment part 3b Connection part 4 Joint plate 8 Engaging groove 10 Slit 21

Claims (1)

Consecutively provided relative to connecting piece longitudinally along both ends of the attachment piece constitutes a metal joint, a pair of該接alloy tool, the side surface of the column or horizontal member, top and bottom construction material combination beam Are arranged side by side so as to correspond to each other, and are fixed to the mounting portion piece, while a pair of joining plates are engaged with engagement grooves formed vertically on an end surface of the combination beam on the combination beam, respectively, The joint plate and the connection piece of the joint fitting engaged between the joint plates are fitted from the outside of the combination beam. A combined beam joining device that is fastened to each other with inserted joint rods.

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