JP4065262B2 - Masonry structure - Google Patents

Description

  The present invention relates to a masonry structure in a tomb, a monument's outer fence, a sarcophagus, and the like, and more particularly to a masonry structure that is easy to construct and excellent in earthquake resistance by using an L metal fitting.

Traditionally, the outer fence of a tombstone consisting of a masonry structure was only stacked with stones and filled with mortar and caulking bonds at the joints. As a result, after 5 or 10 years, the joints could crack, or the stones could slip due to the earthquake, requiring repairs again. As a countermeasure, there is an “outer fence structure of a grave” described in Patent Document 1. In this method, a umbilicus and a umbilical hole are formed and joined to a stone and a stone that are in contact with each other. According to this construction method, the stone and the stone that are in contact with each other are integrally joined, so that the seismic strength is increased and the stone is prevented from shifting.
JP 2000-45573 A

  However, in the above-mentioned “outer fence structure of the grave”, the stone around the portion forming the navel is scraped and discarded, so the extra umbilicus is formed compared to the conventional method of simply stacking stone. However, there is a problem that the cost of the material increases by the amount of stone required. Furthermore, in order to form the umbilicus and umbilical hole, precise processing techniques are required, and it has been difficult to spread in the stone industry where there is a lack of skilled masons who hold those techniques. Therefore, the object of the present invention is to propose a masonry structure that uses the same amount of stone as in the conventional method of simply building stones, and that has excellent seismic strength that can be constructed without requiring precise processing techniques. did.

  In order to solve the above-described problems, the present invention is directed to a masonry structure in which hexahedral stones are sequentially stacked, and an L metal fitting is brought into contact with a corner portion of 90 degrees formed by shifting two stones in a horizontal direction and stacking them. Each stone was fastened using an anchor bolt, and a recess for accommodating the L metal fitting was formed in a corner portion corresponding to the L metal fitting of the third stone material to be contacted next to the corner portion. It is characterized by.

  Here, the shape of the concave portion needs to be substantially the same as the outer shape of the corresponding L metal fitting. Moreover, it is preferable to inject mortar or caulking bond into the joint portion where the two stone materials and the third stone material are in contact with each other and the concave portion.

  The L metal fitting can be formed with a central bent portion and its vicinity narrower than both ends, and the L metal fitting has both ends on the inner side of the central bent portion. It is also possible to form a thick wall in the direction.

  Further, it is preferable that a counterbore hole is formed at an inner end portion of the anchor bolt mounting hole formed on both sides of the L metal fitting.

  As described above, according to the present invention, when the stones are stacked, the stones are connected to each other by the L metal fittings, so that they are firmly connected to each other and the seismic strength is increased. In addition, the processing of the stone during construction is only a hole processing for driving anchor bolts and the formation of a recess for storing the L metal fitting, both of which can be easily performed without requiring skill. is there. Moreover, compared with the conventional method of umbilical cords, there is no portion where the stone is wasted, which is economical.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an L metal fitting used in the masonry structure of the present invention. The L metal fitting 1 is made of stainless steel or steel, and is formed into a shape in which two pieces are joined at a right angle.
Both side surfaces of each piece are formed to be inclined so that the bent portion side is narrower than the tip. Mounting holes 2 and 3 for inserting anchor bolts are drilled in the central portion near the tip of each piece, and counterbore holes 4 and 5 are drilled at the inner ends of the mounting holes 2 and 3. The head of the anchor bolt is prevented from protruding beyond the inner surface of the L metal fitting 1.

  FIG. 2 is a sectional view showing a state in which the L metal fitting 1 shown in FIG. 1 is used. In the masonry structure, the next stone 7 may be stacked on the upper surface of the horizontal stone 6 while being shifted in the horizontal direction. That is, a corner 8 opened 90 degrees to the upper right is formed by the upper surface of the stone 6 and the lower right corner of the stone 7. Holes 11 and 12 for screwing anchor bolts are made in the corners 8 at the positions of the mounting holes 2 and 3 when the L metal fitting 1 is brought into contact therewith. The holes 11 and 12 can be drilled in advance at the factory when the stones are precisely controlled in size, but may be drilled by matching the actual items on site.

  Next, when drilling holes on site, sleeves 13 and 14 for screwing anchor bolts into the holes 11 and 12 are press-fitted. Next, the L metal fitting 1 is brought into contact with the holes 11 and 12, and the anchor bolts 15 and 16 are screwed into the mounting holes 2 and 3. At this time, a box spanner is fitted and tightened on the heads of the anchor bolts 15 and 16 so that the heads are hidden inside the counterbore holes 4 and 5. In this way, the L metal fitting 1 is tightly coupled to the stone material 6 and the stone material 7, respectively, so that the stone material 6 and the stone material 7 are firmly bonded to each other.

FIG. 3 is a perspective view showing the corner portion of the stone 17 to be overlaid next to the corner 8 portion of FIG. If the next stone 17 is directly stacked on the corner 8 in FIG. 2, the L metal fitting 1 becomes an obstacle. Therefore, a concave portion 18 having substantially the same dimensions as the outer dimension of the L metal fitting 1 is formed in the corner portion of the stone material 17 corresponding to the position of the L metal fitting 1. At this time, after the stone material 17 is overlaid on the stone materials 6 and 7, the recess 18 needs to be substantially the same as the outer shape of the L metal fitting 1 so as not to shift in the thickness direction and the extending direction of the L metal fitting 1. There is. However, when the recess 18 is formed in the same dimension as the L metal fitting 1, even if the stone material 17 is made to enter from an angle of 45 degrees obliquely upward in order to overlap the corner 8 portion, the L metal fitting 1 has a thickness equivalent to that. It will interfere with the recess 18. For this reason, for fitting, the recess 18 must be formed larger with a slight margin than the outer dimension of the L metal fitting 1. In addition, although it is preferable to process this recessed part 18 at a factory if possible, it is also possible to carry out according to the actual thing on the spot.

  FIG. 4 is an explanatory view showing a construction example in the case where a stone wall is constructed by stacking stone materials using the above-described L metal fitting 1. Stone materials 22 to 26 are stacked in order from the left on the foundation 21 finished in a horizontal plane with concrete using the L metal fitting 1. Here, the stone material 27 at the right end may be fixed before the stone material 26 due to the restriction of the order of construction on site. In that case, after attaching the L metal fitting 1 between the stone material 25 and the foundation 21, and between the stone material 27 and the foundation 21, the width of the vertical surface of the concave portion 18 on both sides of the stone material 26 is the widest. A straight shape that matches the portion is used, and the stone material 26 is vertically lowered from above and inserted between the stone material 25 and the stone material 27. In this way, when the first stage is built, the stones 28, 29,... In addition, mortar or caulking bond is inject | poured into the joint between the foundation 21 and each stone materials 22-29 and the recessed part 18 of each stone materials 22-29.

FIG. 5 is a perspective view showing an L metal fitting having another shape. In FIG. 4, when the stones 26 are stacked, the stones 26 have to be lowered vertically from above due to restriction of construction. In that case, if the side surface is inclined like the L metal fitting 1, the concave portion 18 matched to the shape causes a problem that the edge portion of the L metal fitting 1 and the concave portion 18 interferes when inserted. Therefore, in this case as well, the L metal fitting 31 shown in FIG. 5 is straightened so that it can be used. In this case, if the shape of the concave portion of the stone material stacked thereon is also a straight shape, it can be inserted from above. An attachment hole and a counterbore for inserting the anchor bolt are formed at the same position as the L metal fitting 1.

  FIG. 6 is a perspective view showing another shape of the L metal fitting. In the illustrated L metal fitting 32, an inclined surface formed on a side surface is formed from a central bent portion, and a distal end side is formed in parallel. Also in this case, the recess formed in the stone is matched with the shape of the L metal fitting 32. An attachment hole and a counterbore for inserting the anchor bolt are formed at the same position as the L metal fitting 1.

  FIG. 7 is a perspective view showing an L metal fitting having another shape. The illustrated L metal fitting 33 is formed by narrowing the width from the central bent portion by one step without forming an inclined surface on the side surface. Also in this case, the recess formed in the stone is matched with the shape of the L metal fitting 33. If it is this shape, the effect which suppresses the position shift of the extension direction of the piled metal L metal fitting 33 will become remarkable. An attachment hole and a counterbore for inserting the anchor bolt are formed at the same position as the L metal fitting 1.

  FIG. 8 is a perspective view showing an L metal fitting having another shape. The illustrated L metal fitting 34 is formed by reducing the thickness from the central bent portion by one step without forming an inclined surface on the side surface. Also in this case, the concave portion formed in the stone material forms a shallow portion and a deep portion at the bottom according to the shape of the L metal fitting 34. If it is this shape, the effect which suppresses the position shift of the extension direction of the L metal fitting 34 of the piled stone material will become remarkable. An attachment hole and a counterbore for inserting the anchor bolt are formed at the same position as the L metal fitting 1. A reinforcing rib 35 is formed inside the bent portion.

  In addition, although not shown in figure, it can also be set as the shape which combined the shape of the L metal fitting mentioned above. For example, one piece may have a straight shape like the L metal fitting 31 in FIG. 5 and the other piece may have a shape having a step in the width like the L metal fitting 33 in FIG. In this case, if the straight part is attached so as to be vertical, it is possible to stack the stones to be stacked next by vertically descending from the top.

  The present invention can be used for a building made of stone, in addition to being used for an outer fence of a grave, a monument, a sarcophagus, or the like.

It is a perspective view of L metal fittings used for the masonry structure of the present invention. It is sectional drawing which shows the state which uses the L metal fitting shown by FIG. FIG. 3 is a perspective view showing a corner portion of a stone piled up next on the corner portion of FIG. 2 upside down. It is explanatory drawing which shows the construction example in the case of building a stone wall by stacking stone materials by this invention. It is a perspective view which shows L metal fittings of another shape. It is a perspective view which shows L metal fittings of another shape. It is a perspective view which shows L metal fittings of another shape. It is a perspective view which shows L metal fittings of another shape.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 L metal fittings 2, 3 Mounting holes 4, 5 Counterbore holes 6, 7 Stone material 8 Corner 11, 12 Hole 13, 14 Sleeve 15, 16 Anchor bolt 17 Stone material 18 Recess 21 Foundation 22-29 Stone material 31-34 L metal fitting 35 Rib

Claims (6)

In a masonry structure that stacks hexahedral stones in order,
An L bracket is brought into contact with a 90-degree corner formed by stacking two stones in a horizontal direction, and the two stones are respectively fastened with anchor bolts, and then brought into contact with the corner. A masonry structure in which a recess for accommodating the L metal fitting is formed in a corner portion of the third stone material corresponding to the L metal fitting. In the masonry structure according to claim 1,
A masonry structure in which the shape of the recess is substantially the same as the outer shape of the corresponding L metal fitting. In the masonry structure according to claim 1 or 2,
A masonry structure in which mortar or caulking bond is injected into a joint portion where the two stone materials and the third stone material are in contact with each other and the concave portion. In the masonry structure according to any one of claims 1 to 3,
The L metal fitting is a masonry structure in which a central bent portion and its vicinity are formed to be narrower than both ends. In the masonry structure according to any one of claims 1 to 3,
The L metal fitting has a masonry structure in which both end portions are formed thicker in the inner direction than the vicinity of the central bent portion. In the masonry structure according to any one of claims 1 to 5,
A masonry structure in which counterbore holes are formed at inner end portions of anchor bolt mounting holes formed on both sides of the L metal fitting.

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