JP3882016B2 - Retaining wall panel assembly bracket - Google Patents

Description

  The present invention is a square, for example, fixed to the rear surface of a horizontally long plate-like retaining wall panel, and is configured so that a substantially vertical retaining wall can be configured by the retaining wall panel by connecting the vertical walls to each other. The present invention relates to an assembly fitting for a retaining wall panel.

  As shown in Patent Document 1, for example, Patent Document 1 shows a retaining wall formed by stacking retaining wall panels formed in a horizontally long rectangular plate in a substantially vertical shape, and filling the back of the panel with concrete such as foamed milk or foamed mortar. Are known.

  Each retaining wall panel in the retaining wall is as shown in FIG. 1, and is located at two longitudinal positions (lateral directions) of the retaining wall panel 1, for example, at a position 1/4 of the lateral length from both ends. In addition, there are two bolt fastening inserts 2 at the top and bottom, and at each of the lateral positions, the upper surface and the lower surface are substantially the same height as the vertical dimension of the retaining wall panel. An assembly metal fitting 3 having an upper member 3a and a lower member 3b having a front member 3c fixed to a bolt 4 fastened to the insert 2, and each of the assembly metal fittings 3 are vertically stacked. By fixing the upper member 3a and the lower member 3b with bolts, the retaining wall panels 1 are stacked substantially vertically.

  As described above, the assembled metal fitting 3 is formed in a window frame shape with the upper and lower members 3a and 3b parallel in the vertical direction and the front and rear members 3c and 3d parallel in the front and rear. It was.

JP 2004-238984 A

  In the conventional assembly fitting 3, the other members 3a, 3b, 3d except for the front side member 3c are formed of angle members, but these members are formed in a window frame shape, so that the diagonal direction There was a problem with the strength. Moreover, since each said member 3a-3d was couple | bonded by welding, the temperature distortion by welding generate | occur | produced and it was difficult to maintain dimensional accuracy.

  In addition, since the upper and lower assembly brackets 3 and 3 are assembled in the state of surface contact with the upper and lower members 3a and 3b which are in contact with each other with bolts penetrating vertically, the rear side of the retaining wall panel Due to the action of the horizontal load generated when the foamed milk is placed on the lip, slippage is caused by the gap between the bolt and the through hole, and the upper and lower retaining wall panels may be displaced forward and backward.

  In addition, since the angle material is used for most of the component materials, the cost required for cutting, welding, galvanizing, and the like of the angle material is high in the manufacturing process of the assembly fitting 3, and there is a problem in cost.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above, and provides a retaining wall assembly metal fitting that can maintain sufficient strength and that can be assembled without causing slippage in the front-rear direction. It is intended to provide.

  In order to achieve the above object, an assembly fitting for a retaining wall panel according to the invention of claim 1 is fixed to the back surface of a square plate-like retaining wall panel, and is coupled to each other in the vertical direction. In an assembly bracket for a retaining wall panel that can form a substantially vertical retaining wall with the wall panel, the four sides of the rectangular plate material are bent on the same side in the thickness direction, and the side members are vertically and laterally around the side wall. The front side member can be coupled to the back surface of the retaining wall panel, and the bolt fastening portion is provided at the same position of the upper member and the lower member with the upper surface and the lower surface in parallel. A protruding piece that protrudes from the upper surface of the upper member or the lower surface of the lower member is provided integrally with the rear member at the rear end of one of the lower members, and the protruding piece and the protruding piece of the rear member The upper surface of the upper member of the projecting piece From the lower surface of Raaruiwa lower member, and has a respective structure in which a bolt fastening portion at the same position from the edge of the side having no protrusion of the rear member.

  The retaining wall panel mounting bracket according to the second aspect of the present invention is fixed to the back surface of the square plate-shaped retaining wall panel, and is substantially the same as the retaining wall panel by connecting the vertical members to each other. Lunch box shape with vertical and vertical side walls around the side wall by folding the four sides of the square plate material to the same side in the plate thickness direction, in the mounting wall panel assembly fitting that can constitute a vertical retaining wall The front member can be connected to the rear surface of the retaining wall panel, and the locking member that prevents the rearward movement of the member placed on the upper member can be attached to and detached from the middle portion in the longitudinal direction of the upper member. It has a fixed configuration.

  The retaining wall panel assembly bracket according to each of the first and second aspects of the present invention is configured so that, in the periphery of the quadrangular plate material, a cut is made at the folding position of each side member, and the end of the folded side member is replaced with another part. It is the structure which bent along the inner side of the side member and provided the bolt fastening part in this overlap part.

  The retaining wall panel assembly bracket according to the first aspect of the present invention is such that the upper assembly bracket stacked on the lower assembly bracket is the rear end portion or the lower member of the upper member of the lower assembly bracket. As both abut the projecting piece projecting from the lower surface of the plate and the bolts are bolted together, the assembled metal fittings that are bolted one after the other can be prevented from sliding in the front-rear direction. It is possible to prevent the wall surface from being displaced in the front-rear direction due to the sliding movement of the assembled metal fitting.

  Further, in the assembly metal of the retaining wall panel according to the invention of claim 2, when the other assembly metal having a shorter length in the front-rear direction than the assembly metal is stacked on the upper member of the assembly metal, The rear end can be locked in the front-rear direction with a locking member that fixes the middle part of the upper member in the longitudinal direction, and the sliding movement of the assembly fittings stacked on the upper side in the front-rear direction can be prevented. Displacement can be prevented.

  In the inventions of the above-mentioned claims, the assembly metal fitting is formed in a lunch box shape, and the rigidity is improved by providing the front and rear side members around the side wall. The acting load can be supported without being deformed at the side wall.

  Further, in the invention of claim 3, the bent end portion that is bent along the inside of the other side member is bolted together with the other side member at the time of assembly, so that this portion is necessary without welding. High rigidity can be maintained.

  Further, according to the present invention of each of the above claims, a single plate material can be formed by being bent, and further, it can be configured at a light weight and at a low cost by not requiring welding.

  FIG. 2 shows a standard assembly fitting 10 used for a standard panel, and FIG. 3 shows a foundation assembly fitting 11 used for a foundation panel. Each of the assembled metal fixtures 10 and 11 is fixed to the back surface of the horizontally long retaining wall panel 12 having the same shape. The retaining wall panel 12 is the same as the conventional one shown in FIG.

  First, the standard assembly fitting 10 will be described with reference to FIGS. This assembled metal fitting 10 is formed into a quadrilateral lunch box shape by bending four sides of a quadrangular side wall 13 by 90 degrees toward the same side in the plate thickness direction. The upper member 14 and the lower member 15 that are vertically opposed to each other have substantially the same height as the vertical dimension of the retaining wall panel 12 and have parallel upper and lower surfaces. Further, the front member 16 and the rear member 17 facing in the front-rear direction are opposed in parallel with a predetermined dimensional interval. The upper end portion of the front member 16 is bent inside the upper member 14 and the lower end portion thereof is bent inside the lower member 15, respectively, and is formed into upper and lower bent pieces 16a and 16a that can be lined up without gaps. Further, the rear end portion of the lower member 15 is a rear side bent piece 15a that is bent inside the rear side member 17 and extends along the gap. Furthermore, the upper end portion of the rear member 17 protrudes upward, and is a protruding piece 17 a that protrudes upward at a right angle to the upper member 14. Reference numeral 18 denotes a reinforcing plate that extends along the back surface of the rear end member 17 including the protruding piece 17a.

  The front member 16 is provided with two bolt holes 19 a and 19 a corresponding to the insert 2 of the retaining wall panel 12. In addition, bolt holes 20a and 20b penetrating the upper bent piece 16a and the lower bent piece 16b of the front member 16 are provided at the same position from the front end at the front end portion of the upper member 14 and the front end portion of the lower member 15, respectively. is there. In addition, a bolt hole 21 a is provided at the lower end portion of the rear member 17 so as to pass through the rear bent piece 15 a of the bent lower member 15, and the upper surface of the upper member 14 is provided at the upper end portion of the rear member 17. The upper projecting piece 17a and two bolt holes 22a and 22b that are vertically spaced apart are provided in the lower part. And the position from the lower end of the bolt hole 21a of the lower end part of this rear member 17 and the position from the upper surface of the upper member 14 of the bolt hole 22a provided in the upper side of the protrusion 17a are the same. The reinforcing plate 18 is provided with bolt holes 23a, 23b at the same pitch as the two bolt holes 22a, 22b provided in the upper part of the rear member 17.

  FIG. 4 shows a molding process of the standard assembly fitting 10. In the figure, reference numeral 24 denotes a developed shape of the assembled metal fitting 10 to be bent, that is, a rectangular plate material. In the first step shown in FIG. 4A, bolt holes 19a, 19b, 20a, 20b are formed at predetermined positions on the four sides of the plate member 24 to become the side members 14, 15, 16, 17 after molding. , 21a, 22a, 22b, and cuts 25a, 25b for obtaining the upper bent piece 16a and the lower bent piece 16b of the front member 16, and the rear bent piece 15a and the rear member 17 of the lower member 15, respectively. Incisions 26a and 26b for obtaining the projecting pieces 17a are provided at the upper end of each.

  In the second step shown in FIG. 4B, the rear member 17 is bent 90 degrees together with the rear bent piece 15 a of the lower member 15. In the third step shown in FIG. 4C, the lower member 15 is bent together with the bent piece 16 b to the lower side of the front member 16. At this time, the rear bent piece 15a of the lower member 15 that has already been bent is inserted into the rear member 17. In the fourth step shown in FIG. 4D, the upper member 14 is bent together with the upper bent piece 16 a of the front member 16. At this time, the upper end of the rear member 17 protrudes as a protruding piece 17a. In the fifth step shown in FIG. 4E, the front member 16 is bent. At this time, the upper and lower bent pieces 16a and 16b of the front member 16 that have already been bent are inserted into the upper member 14 and the lower member 15, respectively.

  Although the standard assembly fitting 10 is formed in each of the above steps, the order of the steps does not necessarily have to be as shown in each drawing of FIG. 4 and may be bent from any of the side members. A plurality of side members may be bent at the same time. And the board | plate material 24 used for this has a board thickness of 1.2-1.5 mm.

  Next, the basic assembly metal fitting 11 shown in FIG. 3 will be described. The basic assembly metal fitting 11 has the same height as the standard assembly metal fitting 10 and the length in the front-rear direction is longer than that of the standard assembly metal fitting 10. The basic configuration is substantially the same as that of the standard assembly fitting 10 described above.

  That is, four sides of the rectangular side wall 27 are bent 90 degrees toward the same side in the plate thickness direction, and formed into a long square lunch box shape. The upper member 28 and the lower member 29 that face each other are substantially the same height as the vertical dimension of the retaining wall panel 12 and have parallel upper and lower surfaces. Further, the front member 30 and the rear member 31 opposed in the front-rear direction are opposed in parallel at intervals longer than the length of the standard assembly fitting 10 in the front-rear direction. The front member 30 has upper and lower bent pieces 30a and 30b which are bent at the inner side of the upper member 28 and the lower end thereof are bent at the inner side of the lower member 29 so as to extend along the gap. The rear end portion of the lower member 29 is a rear bent piece 29a that is bent inside the rear member 31 and extends along the gap. Further, the upper end portion of the rear member 31 is an upper bent piece 31a that is bent inside the upper member 28 and fits along the gap. Further, a stay member 32 for connecting the upper and lower members 28 and 29 is interposed in the middle portion in the longitudinal direction along upper and lower bent pieces 32a and 32b along the inner sides of the side members 28 and 29. is there.

  The front member 30 is provided with two bolt holes 33 a and 33 b corresponding to the insert 2 of the retaining wall panel 12. Further, bolt holes 34a and 34b penetrating the upper and lower bent members 30a and 30b are provided at the same position from the front end of the front end portion of the upper member 27 and the front end portion of the lower member 29, respectively. Among these bolt holes 34a and 34b, at least the upper bolt hole 34a is positioned at the same position as the bolt hole 20a provided on the front end portion of the standard assembly fitting 10 described above.

  Also, anchor bolt holes 35a and 35b are bent pieces of the stay member 32 at a middle position in the front-rear direction of the upper member 28 and the lower member 29 and larger than the front-rear dimension of the standard assembly fitting 10. 32a and 32b are penetrated. The rear member 26 is also provided with two bolt holes 36a and 36b in the vertical direction.

  Reference numeral 37 denotes a locking member that is fixed to the upper surface of the upper member 28 of the connecting member 11 for the foundation. The locking member 37 is L-shaped, and bolt holes 38a and 38b are formed in the respective pieces 37a and 37b. It is provided. And this latching member 37 is in a state where one piece 37a is matched with the bolt hole 35a provided in the middle part of the bolt hole 28a provided in the upper member 29 and the other piece 37b, The back surface of the rear member 17 of the standard assembly metal fitting 10 placed on the foundation assembly metal 11 is brought into contact.

  In the above configuration, the standard assembly fitting 10 is fixed to the rear surface of the retaining wall panel 12 by tightening the front side member 16 of the front member 16 to the insert 2 through the bolt holes 19a and 19b as shown in FIG. Is done.

  Similarly, as shown in FIG. 3, the foundation mounting bracket 11 is fixed to the rear surface of the retaining wall panel 12 by passing bolts through the bolt holes 33 a and 33 b of the front member 30 and fastening them to the insert 2. .

  Next, the construction of the retaining wall using the retaining wall panel 12 for the foundation to which the assembly bracket 11 for the foundation is fixed and the retaining wall panel 12 for the standard to which the assembly bracket 10 for the standard is fixed is illustrated. 2, FIG. 3, FIG. 5, and FIG.

  In FIGS. 5 and 6, reference numeral 40 denotes foundation concrete, and the upper surface of the foundation concrete 40 is finished flat, and an anchor nut 41 for fixing the foundation assembly metal 11 is provided below the foundation assembly 11. It is provided at a position corresponding to the bolt holes 34 b and 35 b provided in the side member 29. Further, anchor muscles 42 are implanted and fixed at positions where they do not interfere with the foundation assembly hardware 11.

  The retaining wall panels 12 for the foundation in which the foundation fittings 11 are fixed on the foundation concrete 40 are arranged in a line, and the respective assembly fittings 11 are connected to the bolt holes 34b provided in the lower member 29 thereof. The bolt 43 penetrating through 35b is fastened to the anchor nut 41 to be fixed to the foundation concrete 40. As a result, the lower end piece 30b of the front member 30 of the foundation assembly 11 and the lower member 29, and the lower bent piece 32b of the stay member 32 are integrally formed with the lower member 29 by the bolts 43, respectively. The front member 30 and the stay member 32 are integrated with the lower member 29.

  Next, a reinforcing panel 44 having the same configuration and size as the retaining wall panel 12 is attached to the rear member 31 of the assembled metal fitting 11, and a bolt 45 penetrating through the bolt holes 36 a and 36 b provided in the rear member 31. It is fixed by tightening on the reinforcing panel 44. Then, concrete is placed in the space between the front and rear panels 12 and 44, and the retaining wall panel 12 for the foundation is fixed to the foundation block 40 together with the assembly metal fitting 11 with the concrete.

  The first-stage retaining wall panel 12 with the standard assembly fitting 10 fixed thereon is staggered or directly stacked on the retaining wall panel 12 that is fixed on the foundation concrete 40 as described above. Stack up. At this time, the standard assembly fitting 10 fixed to the back surface of each retaining wall panel 12 is stacked on the foundation assembly bracket 11. At this time, the front bolt hole 20b of the lower member 15 of the upper standard assembly metal fitting 10 and the front bolt hole 34a of the upper member 28 of the lower base assembly metal fitting 11 coincide with each other. Bolts 46 are passed through both holes and fastened with nuts 47.

  Next, the locking member 37 is placed along the rear end of the standard assembly fitting 10, that is, the rear surface of the rear member 17 and the upper surface of the intermediate portion of the foundation assembly fitting 11. In this state, one of the bolt holes 38a, 38b of each piece 37a, 37b of the locking member is in the bolt hole 35a in the middle part of the upper member 28 of the base assembly bracket 11, and the other is the standard assembly bracket 10. The rear end portion of the standard assembly fitting 10 is a foundation by matching the bolt holes 21a on the lower side of the rear member 17 and passing bolts 48, 49 through the bolt holes and fastening them with nuts 50, 51. It is fixed to the assembly bracket 11 for use.

  Next, the standard retaining wall panels 12 are sequentially stacked on the upper side of the second standard retaining wall panel 12 from the bottom. At this time, other standard assembly fittings 10 are stacked on the upper side of the standard assembly fitting 10 with the lower member 15 in contact with the upper member 14.

  In this state, the front bolt holes 20a and 20b of the upper member 14 of the lower assembly fitting 10 and the lower member 15 of the upper assembly fitting 10 coincide with each other, and the rear member of the lower assembly fitting 10 The bolt hole 22 a provided in the projecting piece 17 a provided at the upper end of 17 is aligned with the lower bolt hole 21 a of the rear member 17 of the upper assembly fitting 10.

  In this state, the bolts 46 are passed through the front bolt holes of the upper member 14 and the lower member 15 and fastened with nuts 47. Further, the reinforcing plate 18 is placed along the back surface of the projecting piece 17a, the bolt 52 is passed through the projecting piece 17a and the bolt holes 22a and 21a of the rear member 17 from the upper bolt hole 23a, and fastened with the nut 53, A bolt 54 is passed from the lower bolt hole 23 b of the reinforcing plate 18 to the bolt hole 22 b of the rear member 17, and fastened with a nut 55.

  Similarly, the standard retaining wall panels 12 are sequentially stacked to form a retaining wall having a predetermined height. And it fills in the space of the back surface of this, for example, bubble mixing lightweight banking, such as bubble milk, is completed.

  In the above-described configuration, the second standard assembly bracket 10 from the bottom has its rear end pressed by the locking member 37 from the rear side, and the third or higher assembly bracket 10 from the bottom has the rear end Each of the assembly brackets 10 is prevented from sliding backward by being pressed from the rear side by the projecting piece 17a of the rear member 17 of each lower assembly bracket 10.

  In addition, the bent pieces 16a, 16b, 15a, and 30a, 30b of each of the assembled brackets 10, 11 are tightened together with the side members by bolts, so that they are integrated with each side member in an assembled state without being welded. Each assembly fitting 10 and 11 can maintain rigidity without using a welded structure.

  In the above embodiment, the reinforcing plate 18 is used to connect the rear member 17 of the standard assembly fitting 10 and the projecting piece 17a. However, without using the reinforcing plate 18, the rear member 17 You may make it couple | bond the protrusion 17a with the volt | bolt 52 and the nut 53 directly.

  7 and 8 show another embodiment of the present invention. In the embodiment described above, in the standard assembly fitting 10, the example in which the protruding piece 17 a is provided on the upper end portion of the rear member 17 so as to protrude upward from the upper surface of the upper member 14 is shown. 7. The protrusion 17a 'of the assembly fitting 10' in the other embodiment shown in FIG. 8 is provided at the lower end of the rear member 17 'so as to protrude downward from the lower surface of the lower member 15. Yes.

  In this case, a bolt hole 21a corresponding to the position of the bolt hole 22a provided on the tip end side of the projecting piece 17a 'is provided at the upper end portion of the rear member 17'. The other parts are the same as those of the previous embodiment.

  On the other hand, in the base assembly metal fitting 11 ', the protrusion 17a' of the standard assembly metal fitting 10 'stacked on the upper side of the base assembly metal fitting 11' is engaged with the middle portion of the upper member 28 '. A notch 56 is provided. The stay member 32 is provided with a bolt hole 60 corresponding to the bolt hole 22a on the tip end side of the projecting piece 17a ', and a locking member 37 is provided at the lower side of the upper member 28' and at the corner of the stay member 32 with bolts 48, 51 and nuts 50 and 49 are fixed.

It is a partially exploded perspective view which shows a prior art example. It is a partially exploded perspective view which shows the assembly bracket for standards of this invention. It is a partially exploded perspective view which shows the assembly metal fitting for foundations of this invention. (A), (b), (c), (d), (e) is explanatory drawing which shows the formation process of the assembly bracket for standards. It is a side view which shows the construction structure of a retaining wall. It is a perspective view seen from the back which shows the construction structure of a retaining wall. It is a partially exploded perspective view which shows other embodiment. It is a side view which shows the construction structure of the retaining wall by other embodiment.

Explanation of symbols

  2 ... Insert, 3, 10, 11 ... Assembly metal fitting, 12 ... Retaining wall panel, 13, 27 ... Side plate, 14, 28 ... Upper member, 15, 29 ... Lower member, 16, 30 ... Front member, 17, 31 ... rear side members, 15a, 16a, 16b, 29a, 30a, 30b, 31a, 32a, 32b ... bent pieces, 17a, 17a '... projecting pieces, 18 ... reinforcing plates, 19a, 19b, 20a, 20b, 21a, 22a, 33a, 33b, 34a, 34b, 35a, 35b, 36a, 36b ... bolt holes, 32 ... stay members, 37 ... locking members.

Claims (3)

Retaining wall panel assembly bracket that is fixed to the back of the square plate retaining wall panel and that allows the vertical retaining wall to be configured by the retaining wall panel by connecting the vertical walls to each other. In
Fold the four sides of the rectangular plate material to the same side in the plate thickness direction to form a lunch box shape with the side members up and down around the side wall, allowing the front member to be connected to the back of the retaining wall panel, A bolt fastening portion is provided at the same position of the upper member and the lower member with the lower surface parallel, and the upper end of either the upper member or the lower member is provided from the upper surface of the upper member or the lower surface of the lower member. Protruding protrusions are provided integrally with the rear member, and the protrusions and the portion of the rear member that does not have the protrusions, from the upper surface of the upper member of the protrusions or from the lower surface of the lower member, An assembly fitting for a retaining wall panel, wherein a bolt fastening portion is provided at the same position from the end of the rear member that does not have a projecting piece. Retaining wall panel assembly bracket that is fixed to the back of the square plate retaining wall panel and that allows the vertical retaining wall to be configured by the retaining wall panel by connecting the vertical walls to each other. In
The four sides of the rectangular plate are bent to the same side in the plate thickness direction to form a bento box with upper and lower and front and rear side members around the side wall, allowing the front member to be connected to the back of the retaining wall panel, and the upper member A retaining wall panel assembly fitting characterized in that a locking member for preventing the rearward movement of a member placed on the upper member is detachably fixed to an intermediate portion in the longitudinal direction. In the periphery of the square plate material, a cut is made at the folding position of each side member, the end of the folded side member is bent along the inside of the other side member, and a bolt fastening portion is provided at this overlapping portion An assembly fitting for a retaining wall panel according to any one of claims 1 and 2.

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