JP2008057326A - Joint fitting for framework member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint fitting easily joining framework members to each other and obtaining a firm joint state. <P>SOLUTION: The joint fitting for the framework members is composed of a tabular joint plate 2 fittingly inserted in a slit 7 provided in the end face of one framework member out of a pair of framework members joined to each other, and mounting pieces 3 provided at the base end of the joint plate 2 and fitted into receiving holes 10 provided in the other framework member, and fixed by fixing rods 8. The joint plate 2 is provided with through holes 5 for connecting rods 12 fittingly inserted through the one framework member, and each mounting piece 3 is protrusively provided with a fitting rod 3b fittingly inserted in the other framework member and temporarily fixed to the mounting piece 3. A through hole 9 of the fixing rod 8 fixed to the other framework member is provided surrounding the fitting rod 3b. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a joint member for a frame assembly of a wooden building.

  In recent years, wooden buildings have been renovated in the same way as concrete buildings, but this is only due to changes in floor plans, wall surface renovations, etc., and the replacement of shaft assemblies is not routinely performed.

  However, there is an idea to replace the shaft assembly material, for example, when the column is old, and in the case of the column, since the load is applied, the method of replacing the load with the jack up, that is, the jack device is the method. It is known as an idea (for example, Patent Document 1).

JP 2001-193287 (left column on page 6)

  In the above method, a jack device is interposed between horizontal members (beams, girders and foundations) instead of columns, and the old column is removed and a new column is interposed between the horizontal members. Although there is no description up to this point in the literature 1, it is necessary to remove the wall material between the shafts because the jack device is used (in the literature 1), therefore, The replacement work itself becomes large-scale and requires not only personnel but also unnecessary incidental work, which increases costs.

  The present invention was devised to provide a joint fitting suitable for use in replacement work of a shaft assembly, which can be performed at a relatively low cost.

  A flat joint plate that is fitted into a slit provided on an end surface of one of the pair of shaft assemblies to be joined to each other, and provided at the base end of the joint plate, and the other one of the shaft assemblies And a mounting piece that fits into a receiving hole provided in the material and is fastened with a fastening rod, and has a through hole for a coupling rod that is inserted through the one shaft assembly on the joint plate, and the mounting A fitting rod through which a fitting rod that is inserted into the other shaft assembly material and temporarily fixed is protruded and is fixed to the other shaft assembly material so as to surround the fitting rod. It is set as the structure which provided.

  Since the present invention is configured as described above, it can be secured to the shaft assembly simply by fitting the mounting piece into the engagement hole provided in the shaft assembly and fastening it with a fastening rod. Therefore, it is possible to provide a joining metal fitting that can be firmly attached simply by making an engagement hole in the shaft assembly and can be easily assembled with the shaft assembly.

  The drawings show an embodiment in which the joint fitting according to the present invention is applied to a method for replacing a shaft assembly, FIG. 1 is a longitudinal sectional view, FIG. 2 is a transverse sectional view, and FIG. 4 is an enlarged longitudinal sectional view of FIG. 3, FIG. 5 is a partially cutaway front view of the third embodiment, and FIG. 6 is an enlarged longitudinal sectional view of FIG.

  Hereinafter, the metal fitting according to the present invention will be described while explaining an embodiment of the shaft replacement method.

First embodiment

  The first embodiment is the vicinity of the beam on the opposed surfaces 1a and 1a of the column 1 and 1 of an existing shaft set including a pair of columns 1 and 1 and a beam interposed between the columns 1 and 1. It is obtained as a first step that the joining metal fitting A is projected.

  The joining bracket A is composed of a joining plate 2 and mounting pieces 3, 3 and 3 which are provided by welding to the base end face of the joining plate 2. The joining plate 2 of the joining bracket A is provided on the upper and lower side edges of the beam. And a pair of through-holes 5 and 5 provided between the notches 4 and 4, and the joining plate. The attachment piece 3 that constitutes the joining bracket A is formed by projecting a fitting bar 3b at the center of a disk-like fastening part 3a, and the fastening part 3a is provided with the fitting bar 3b. The through holes 9 and 9 for penetrating the fastening rod 8 are provided so as to surround.

  In the vicinity of the existing beam (not shown) on the opposing surface 1a of the pillars 1 and 1 (one of which is not shown), it is placed in a position corresponding to the mounting piece 3 of the joint metal A. The receiving hole 10 is formed so as to surround the deep hole portion 10b by inserting the fitting rod 3b into the deep hole portion 10b in the center of the receiving hole 10. The fastening piece 3a is fitted into the shallow hole 10a, and the fastening rod 8 (screw nail in the embodiment) is embedded through the through hole 9 so as to fasten the mounting piece 3 to the pillar 1. In this manner, the joining metal fitting A is projected from the facing surface 1a on the joining plate 2.

  If the peripheral side of the fitting rod 3b is knurled as shown in the figure, the fitting rod 3b reliably contacts the wall surface of the deep hole portion 10b of the receiving hole 10, and maintains the assembled state with respect to the column 1, The fastening operation by the fastening rod 8 at the next stage can be easily performed (in the case of the embodiment, since the three receiving holes 10, 10, 10 to the mounting pieces 3, 3, 3 are used) Although it does not become a problem, when using the single receiving hole 10 thru | or the attachment piece 3, this temporary fix | stop state of the joining bracket A with respect to the pillar 1 is very effective).

  The slit 7 is provided in the center of the end face of the new beam (new beam) 6 in place of the beam constituting the existing shaft set together with the columns 1 and 1 so as to correspond to the joining plate 2. 7, through holes 11, 11, 11, 11 are provided so as to correspond to the notches 4, 4 and the through holes 5, 5 provided in the joining plate 2 in a direction orthogonal to the through holes 7, 11, 11, 11. The first coupling rod 12 is inserted into the uppermost through-hole 11 (indicated by reference numeral 11A in the drawing) and assembled to the end of the new beam 6 (generally, at the factory). The new beam 6 assembled with one connecting rod 12 is aligned with the joining plate 2 (joint fitting A) in which the slit 7 projects from the end face of the column, and a load is applied along the column facing surface 1a. When moved, the new beam 6 is in a position where the first coupling rod 12 provided at the end of the new beam 6 is locked to the back end of the notch 4 of the joining plate 2. The through hole 5 and the through hole 11, and the other notch 4 (the back end portion) and the through hole 11 which are installed between the pillars 1 and 1 and previously arranged in a matching relationship are stopped. Each of the first beam 6 is inserted into and driven by a second coupling rod 12 'made of a drift pin, which is the same as the first coupling rod 12, so that the new beam 6 is fixed to the column 1 at the end, and between the columns 1 and 1. The second step, which is the next step following the first step, is completed.

  Then, the existing beam located near the newly installed beam 6 is cut and removed to complete the beam replacement operation.

  The same procedure can be used to replace the beams and girders in the shaft difference between the trunk difference and the beams and girders using the same procedure.

  In addition, the beam 6 of the embodiment may be assembled to the joining bracket A (joining plate 2) from the lower side of the joining bracket A, and the notch 4 positioned on the lower side in the drawing of FIG. For this purpose, in this case, the lowermost second coupling rod 12 ′ (shown in FIG. 1, 12 ′ A) pre-assembled to the new beam 6 replaces the first coupling rod 12. Thus, the engagement of the new beam 6 between the columns 1 and 1 by engaging with the lower notch 4 functions as a positioning function. After the coupling rod 12 ′ is locked to the back end of the notch 4, the coupling rods 12 and 12 ′ are inserted and driven into the remaining through holes 5 and through holes 11 that are coincident with each other, as described above.

  When the new beam 6 is assembled to the joint A protruding from the column 1 from below, the assembly of the second coupling rod 12 'indicated by reference numeral 12'A to the new beam 6 may be omitted (positioning function). In any case, any one of the coupling rods 12 or 12 'other than the second coupling rod (indicated by reference numeral 12'A) 12' is used as a new beam. 6 is combined with the joint metal fitting A and inserted into the new beam 6 and driven, so that the new beam 6 is joined via the one coupling rod 12 or 12 'by the driven coupling rod 12 or 12'. As a result, the support state by the crane or the like of the new beam 6 is not necessary, and the other connecting rod 12 'or 12 can be smoothly inserted and driven.

  The fitting bar 3b of the attachment piece 3 of the joint metal A is a close fit in the deep hole portion 10b of the receiving hole 10 so as to maintain the assembled state of the joint metal A with respect to the column 1. The load bearing performance with respect to the load applied from the beam 6 side can be increased by embedding the column 3 in the column 1b.

Second embodiment

  In the first embodiment, the existing shaft assembly is composed of the columns 1 and 1 and the beam, whereas the existing shaft assembly is composed of the base 13 and horizontal members and columns such as beams and girders (not shown). The pillar 14 is a new shaft assembly.

  In the case of this embodiment, a receiving hole 10 is provided in the beam (not shown) and the base 13 in the same manner as in the first embodiment, and the mounting piece 3 is fitted to each portion 10a, 10b of the receiving hole 10. The joining metal fitting Aa is fixed to the base 13 and the beam, the joining plate 2 is protruded from the opposing surface 13a of the base 13 and the beam, and the joining plate 2 is engaged with the slit 7 provided at the end of the new column 14. The joint rod 12A is inserted and driven into the through hole 5 provided in the joining plate 2 and the through hole 11 corresponding to the through hole 5 provided in the joining plate 2, and the new pillar 14 is formed in the vicinity of the pillar of the existing shaft assembly. Is installed and fixed between the base 13 and the horizontal member, and then the existing pillar is removed (usually cut) to obtain the assembled state shown in the figure.

  The joining metal fitting Aa used in the second embodiment is different from the first embodiment only in that the mode of the joining plate 2 is provided with only the through hole 5 that coincides with the through hole 11 provided on the column 14 end side. The remaining points are almost the same as indicated by the same reference numerals.

  Note that the slits 7 provided on the pillar 14 side (originally, the base-side joining plate 2b corresponding thereto) are provided along the longitudinal direction of the base 13 and are opposed to each other with the base 13 and the pillar interposed therebetween. By removing only one of the inner and outer wall materials, the pillar 14 is interposed between the base 13 and the horizontal member, and the new pillar 14 is moved in the longitudinal direction of the base 13 to engage the slit 7 and the joining plate 2b. Therefore, according to such an arrangement relationship, as described above, the column replacement work can be performed by removing only one side of the inner and outer wall materials.

  FIG. 19 shows basic concrete.

Third embodiment

  The third embodiment shown in FIG. 5 and FIG. 6 differs from the second embodiment only in that the installation work of the reinforcing plate 16 is included in the projecting work for the joint metal fitting Aa to the base 13 of the existing shaft group. The remainder is the same as in the second embodiment. That is, in this example, like the second example, the joining metal plate Aa is fixed to the base 13 and the facing surface 13a of the horizontal member (not shown), and the joining plate 2 is projected, and then provided in the center. The reinforcing plate 16 is superposed on the mounting piece 3 fixed to the base 13 or the like so that the joining plate 2 passes through the long hole 17, and the fixing rod 8 </ b> A is attached to the base 13 or the like through the through hole 18 of the reinforcing plate 16. It is embedded in a horizontal member to reinforce the fixed state of the attachment piece 3 of the joining bracket A to the base 13 or the like.

  In this embodiment, since the reinforcing plate 16 protrudes from the base 13 or the like, when the new column 14 is interposed between the reinforcing plates 16 (between the base 13 side and the horizontal member side), the new column 14 If the corner portion (one end edge of the end face) located on the reinforcing plate 16 side is rounded by hitting it with a hammer or the like, the operation becomes easy.

  Since the remaining points are the same as those in the first and second embodiments, description thereof will be omitted.

FIG. FIG. The partially missing front view of the second embodiment. The expanded longitudinal cross-sectional view of FIG. The partially missing front view of the third embodiment. The expanded longitudinal cross-sectional view of FIG.

Explanation of symbols

1 Column 2 Bonding plate 3 Mounting piece 3b Mating rod 5 Through hole 6 New beam 7 Slit 8 Fastening rod 10 Receiving hole 13 Base 14 New column

Claims (2)

  A flat joint plate that is fitted into a slit provided on an end surface of one of the pair of shaft assemblies to be joined to each other, and provided at the base end of the joint plate, and the other one of the shaft assemblies And a mounting piece that fits into a receiving hole provided in the material and is fastened with a fastening rod, and has a through hole for a coupling rod that is inserted through the one shaft assembly on the joint plate, and the mounting A fitting rod through which a fitting rod that is inserted into the other shaft assembly material and temporarily fixed is protruded and is fixed to the other shaft assembly material so as to surround the fitting rod. This is a joint for metal shaft assembly.   The joint member for a shaft assembly according to claim 1, wherein at least one of the opposite side edges of the joining plate is provided with a notch for engaging a locking rod embedded in one shaft assembly perpendicularly to the slit.

Images