JP2007291621A - Block fence - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a block fence not easily fallen down even if an unforeseen accident caused by an earthquake and the contact of a vehicle occurs while minimizing construction cost. <P>SOLUTION: This block fence comprises a foundation concrete 1 and a block wall 2 formed by stacking concrete blocks 20 on the foundation concrete 1. The foundation concrete 1 and the block wall 2 are reinforced by vertical reinforcements 3. A recess 13 opening to the upper surface is formed in the foundation concrete 1 at a position around the vertical reinforcements 3. Mortar continuously vertically placed in the blocks 20 along the vertical reinforcements 3 is continuously placed also in the recess 13. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a block rod having a special structure for preventing collapse.

  Well-known block fences are usually constructed by building block walls consisting of multiple concrete blocks on the foundation concrete so that the majority of the foundation concrete is buried in the foundation ground and does not collapse. The block walls stacked on the foundation concrete are solidified with mortar using vertical bars and are supported on the foundation concrete.

  In recent years, there have been frequent collapse accidents due to earthquakes of block fences or contact with vehicles such as automobiles, etc., and it is the current situation that people who are injured or even killed can fall under the collapsed block fence. In general, as measures for preventing collapse, reinforcement of the basic concrete part during construction, increasing the amount of reinforcing bars such as thickening existing reinforcing bars, and the like are performed.

  By the way, as for the block well-known conventionally, as mentioned above, the block piled up on basic concrete is adhere | attached on basic concrete with rooting mortar. However, since the upper surface of the foundation concrete is generally finished smoothly with a gold trowel, it is difficult to obtain sufficient adhesive strength between the foundation concrete and the block above it, that is, at the root portion. On the other hand, when an external force such as an earthquake acts on the block fence, a large force acts on the root portion where the adhesive strength is weak, and it is easy to collapse from the root portion.

  Therefore, in the case of such a block dredging, measures based on construction and structural viewpoints are necessary as measures to prevent the collapse of the block, but the measures for strengthening the root part that is the cause of the block collapse described above are exceptional. The current situation is that it has not been adopted.

  And even if a strengthening measure for preventing the collapse of the known block fence is taken, the countermeasure for preventing the collapse of the block fence, which has been generally performed in the past, is considered. There is no measure focusing on the root part, such as increasing the amount of reinforcing bars to thicken existing reinforcing bars. Although the collapse prevention measures by increasing the amount of reinforcing bars, such as thickening the existing reinforcing bars in the block fence, can be expected to have a certain effect, of course, it will lead to an increase in expenses in the construction of the block fence and save construction costs. From the viewpoint of the above, the above-mentioned measure for increasing the amount of reinforcing bars is not necessarily the best measure for preventing the above-mentioned block block collapse.

  As described above, while saving construction costs is desired, the amount of reinforcing bars is not increased at all, or even if the amount is increased, a relatively slight increase in the amount of reinforcing bars can be used while minimizing the increase in construction costs. By providing the block wall with the above-mentioned collapse prevention measures that refer to the structural problems of the known block wall, it is necessary to provide a block wall that does not easily collapse even in the event of an unexpected situation such as an earthquake or vehicle contact. It has been.

  Under the circumstances as described above, the present invention aims to provide a new block fence in which the above-mentioned problems in the above-mentioned known block fence are solved. Focusing on the structural factors in the above, that is, the proposal for improvement of the above-mentioned known block fence focusing on the structural weakness of the rooting part, which is the boundary between the foundation concrete and the stacked block wall, and minimizes the construction cost of the invention It is an object of the present invention to provide a new block fence that does not easily collapse even when an unexpected situation such as an earthquake or a vehicle contact occurs.

  In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that foundation concrete and a plurality of concrete blocks are stacked on the foundation concrete to form a block wall, and the foundation concrete and the block wall are reinforced by vertical bars. In the block cage, the foundation concrete is formed with a recess opening on the upper surface around the vertical bars, and mortar continuously filled in the vertical direction of the concrete block along the vertical bars is also continued in the recess. It is characterized by filling.

  According to a second aspect of the present invention, there is provided a block concrete in which a block wall is formed by laminating a plurality of concrete blocks on a foundation concrete, and the foundation concrete and the block wall are reinforced by vertical bars. A reinforcing reinforcing bar is passed from the lower concrete block to the foundation concrete, and the lower part of the reinforcing reinforcing bar is embedded in the foundation concrete, and the upper part of the lower concrete block is pressed by the holding means provided at the upper end. To do.

  According to a third aspect of the present invention, there is provided a basic concrete and a block fence in which a plurality of concrete blocks are stacked on the basic concrete to form a block wall, and the basic concrete and the block wall are reinforced by vertical bars, the basic concrete described above. A recess that opens to the upper surface is formed around the vertical stripe, and mortar continuously filled in the vertical direction of the block along the vertical stripe is also continuously filled in the concave portion to form the recess. In the part not provided, a reinforcing bar is passed from the lower concrete block of the block wall to the basic concrete, and the lower part of the reinforcing reinforcing bar is embedded in the basic concrete, and the lower concrete is provided by a holding means provided at the upper end. It is characterized by holding the top of the block.

  According to the first aspect of the present invention, in the basic concrete, a concave portion that opens to the upper surface is formed around the vertical bars, and mortar continuously filled in the vertical direction of the block along the vertical bars is formed in the concave portions. Since the mortar was also filled continuously, the mortar was fixed by integrating the block and vertical bars, and a mortar column that penetrated into the foundation concrete was formed. It is possible to reinforce the root part of the heel, which is considered to be weak, without increasing the vertical stripes. Accordingly, it is possible to provide a low-cost block fence having a large collapse prevention effect.

  According to the second aspect of the present invention, the reinforcing reinforcing bar is passed from the lower concrete block of the block wall to the basic concrete, the lower part of the reinforcing reinforcing bar is embedded in the basic concrete, and the lower step is provided by the holding means provided at the upper end. Since the upper part of the concrete block is pressed, the boundary between the foundation concrete and the lower concrete block is strengthened by the reinforcing reinforcing bars, and the length of the reinforcing reinforcing bars may be up to the lowest concrete block, minimizing the increase of reinforcing bars It is possible to provide a block fence having a large effect of preventing collapse.

  According to a third aspect of the present invention, in the basic concrete, a recess opening on the upper surface is formed around the vertical bar, and mortar continuously filled in the vertical direction of the block along the vertical bar is continuously provided in the recess. In addition, the reinforcing bars are passed from the lower concrete block of the block wall to the foundation concrete, and the lower part of the reinforcing reinforcing bar is embedded in the foundation concrete, and the lower concrete block is Since the upper part is held down, the mortar unites and fixes the block and vertical bars, and a mortar column that enters the foundation concrete is formed, and the boundary between the foundation concrete and the lower concrete block is strengthened by the reinforcing bars. Therefore, the base of the heel is further strengthened to prevent the block wall from collapsing more effectively. It is possible.

  In addition, since the length of the reinforcing reinforcing bar may be up to the lowest concrete block, the increase in the reinforcing bars can be minimized.

Embodiment 1
A first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the block fence A is formed by stacking a plurality of stages of foundation concrete 1 constructed by placing concrete and a concrete block (hereinafter referred to as a block) 20 on the foundation concrete 1. It consists of a block wall 2. A cap 21 is mounted and fixed on the block 20 stacked on the top.

  The foundation concrete 1 has a predetermined length and a predetermined width and depth in the foundation ground B, crushed stones, etc. are laid in this groove, and the foundation is prepared and then squeezed, a frame plate is fitted, and the extension direction of the groove The vertical bars 3 arranged at predetermined intervals and the horizontal bars 4 that bind the vertical bars 3 to each other are arranged, and then concrete is placed in the construction.

  Since the foundation concrete 1 needs to support the block wall 2 of the block 20 stacked on the upper surface without falling down, the majority of the foundation concrete 1 is embedded in the foundation B.

  The exposed portion exposed from the surface of the foundation ground B of the foundation concrete 1 is usually set lower than the height of the block 20, and the upper surface of the exposed portion is finished as a relatively high level horizontal surface, whereby the block 20 In this way, the blocks 2 are stacked with high accuracy, and the block cage 2 is obtained in which high safety is ensured without fear of occurrence of collapse due to distortion or inclination over a long period of time.

  Further, as shown in FIG. 2, the width of the upper surface of the foundation concrete 1 is slightly wider than the width of the stacked blocks 20, thereby ensuring the stability of the block 塀 A, and the stacked blocks 20 are stacked. The combination of ensuring the high levelness of the upper surface and the width of the upper surface improves the workability of stacking the blocks 20. Further, the wide structure of the stacked upper surface of the block 20 has an effect of increasing the visual stability of the block wall 2.

  A large number of vertical bars 3 and horizontal bars 4 are arranged in the basic concrete 1 at predetermined intervals. Longitudinal bars 3 extend upward every other piece of foundation concrete 1 and are arranged every two blocks. The thickness of the vertical stripe 3 is usually 10 mm in diameter.

  Characteristically, as shown in FIG. 1 and FIG. 2, a recess 13 that opens to the upper surface is formed around the longitudinal bars 3 on the upper surface of the foundation concrete.

  These recesses 13 are provided as filling spaces for the mortar 30 when the blocks 20 are stacked, and are formed by the interposition of a cylindrical body 14 (see FIG. 4) as a jig when placing the basic concrete 1. It is. The formation of the recess 13 will be described later.

  That is, a concave groove 21 is formed at the end of the block 20, and when the blocks 20 are assembled, the block wall 2 is long due to the butting of the adjacent blocks 20 and 20, as can be understood from FIGS. A cylindrical space S is formed. In this space, the vertical bars 3 are arranged and hardened with a mortar 30. Thereby, the mortar 30 is formed in a columnar shape in the block wall 2.

  And the mortar 30 with which the recessed part 13 of the two blocks 20 of the 1st step | stack piled up on the upper surface of the foundation concrete was integrated with the said columnar mortar 30 continuously.

  Therefore, the root portion which is a boundary between the foundation concrete 1 and the block wall 2 formed on the foundation concrete 1 is strengthened.

  As described above, in forming the recess 13 on the upper surface of the foundation concrete 1 and filling the mortar, when forming the foundation concrete 1, when filling the concrete inside the concrete panel, Through the cylindrical body 14 (see FIG. 4), the lower part of the cylindrical body 14 is held below the upper surface of the foundation concrete 1, and concrete is placed. If the cylindrical body 14 is extracted after the concrete has hardened, a concave portion 13 that opens upward is formed around the vertical bars 3 (see FIG. 2).

  After the first-stage block 20 is stacked on the basic concrete 1, the mortar is placed on the first-stage block 20, the second-stage block 20 is stacked on the first-stage block 20, and the stacking is performed in the following order. And what is necessary is just to fill the mortar 30 in the long cylindrical space S formed between the adjacent blocks 20 and 20, and to make it continuous.

  Since the block mortar 2 constructed by the above construction method has a structure in which the mortar 30 of the block joining by assembling the blocks 20 enters the inside of the foundation concrete 1 on the upper surface of the foundation concrete, it is stacked on the foundation concrete 1. The root portion that is the boundary of the block wall 2 can be strengthened.

Embodiment 2
Another embodiment of the reinforcement measure of the root part of the foundation concrete 1 and the block wall 2 of Embodiment 1 of this invention is demonstrated based on FIGS. In addition, although the description is abbreviate | omitted about the structure of Embodiment 1 in the structure and construction of the block ridge A, a common part is demonstrated using the same code | symbol in principle about the part demonstrated partially overlapping.

  The base concrete 1 is provided with longitudinal bars 3 (including ribs 3a) and transverse bars 4, and the vertical bars 3 are extended upwardly at every other base concrete 1 and placed every two blocks. ing. The blocks 20 are stacked on the foundation concrete 1, but the butt portions of adjacent blocks 20 are filled with mortar as in the case of the first embodiment.

  By the way, of the longitudinal reinforcing bars 3 of the basic concrete, the ribs 3a are bound by a wire with a lower portion 6a of the reinforcing reinforcing bar 6 embedded therein, and the tip 6b of the reinforcing reinforcing bar 6 is a first block from the surface of the basic concrete part. 20 protrudes upward. A screw 7 is cut at the tip of the reinforcing reinforcing bar 6, and a nut 9 (which may be a thumbscrew) is screwed to the screw 7 via a contact plate 8 as a pressing means. By tightening, the blocks 20 stacked in the first stage are integrated with the foundation concrete 1 through the reinforcing bars 6.

  After the first-stage block 20 is stacked on the basic concrete 1, the mortar is placed on the first-stage block 20, the second-stage block 20 is stacked on the first-stage block 20, and the stacking is performed in the following order.

  As described above, the first block 20 and the foundation concrete 1 are integrated through the reinforcing reinforcing bar 6 and the backing plate 8 and the root portion is reinforced, so that the risk of the block wall 2 collapsing is almost eliminated. Is done.

  Further, the reinforcing reinforcing bars 6 need only be provided with a length necessary for stacking the first-stage blocks 20, so that the reinforcing reinforcing bars 6 can be shortened, and a block 塀 A having a great effect of preventing collapse can be provided by using a minimum amount of reinforcing bars. .

Embodiment 3
The third embodiment shown below is a block bag A that uses both of the strengthening measures disclosed in the first and second embodiments.

  That is, as illustrated in FIG. 8, the block 20 that is abutted across the vertical bars 3 extending above the foundation concrete 1 has a long columnar shape formed between adjacent blocks 20 and 20. The mortar 30 is continuously filled in the space S.

  According to this, since the mortar 30 of the block joining by assembling the blocks 20 enters the inside of the recess 13 on the upper surface of the basic concrete, the rooting portion which is the boundary between the basic concrete 1 and the block wall 2 stacked thereon is reinforced. can do.

  Further, on the upper surface of the foundation concrete 1, the block 20 that is abutted between the longitudinal bars 3 that extend upward is used as a pressing means for the upper end screw 7 of the reinforcing reinforcing bar 6 embedded in the foundation concrete 1. The nut 9 is screwed through the contact plate 8 and the first block 20 is integrated with the foundation concrete 1 by tightening the nut 9.

  According to this, the first stage block 20 and the foundation concrete 1 are integrated through the reinforcing steel bars 6 and the backing plate 8, and the root portion is reinforced.

  Therefore, the block wall 2 is firmly supported by the synergistic effect of the filling mortar of the concave portion 13 and the presser of the contact plate 8, and the possibility of the collapse of the block rod A is almost eliminated.

Side sectional view showing the main structure of the block cage of the present invention Sectional drawing on the XX line in FIG. Sectional view on the YY line in FIG. Depression formation explanatory drawing Side sectional view which shows the main structure part of another embodiment of this invention Enlarged view of the main structure in FIG. Perspective view of the main part of the main structure The side view which shows the main structure part of another embodiment of this invention.

Explanation of symbols

Block A 1 Basic concrete 2 Block wall 3 Vertical bars 3a Embedded vertical bars 4 Horizontal bars 6 Reinforcing bars 13 Recesses 20 Blocks

Claims (3)

In the concrete block and the block fence in which a plurality of concrete blocks are stacked on the basic concrete to form a block wall, and the basic concrete and the block wall are reinforced by vertical bars,
In the basic concrete, a concave portion opened on the upper surface is formed around the vertical bars, and mortar continuously filled in the vertical direction of the concrete block along the vertical bars is continuously filled in the concave portions. Block fence characterized by. In the concrete block and the block fence in which a plurality of concrete blocks are stacked on the basic concrete to form a block wall, and the basic concrete and the block wall are reinforced by vertical bars,
Reinforcing reinforcing bars were passed from the lower concrete block of the block wall to the basic concrete, and the lower part of the reinforcing reinforcing bar was embedded in the basic concrete and the upper part of the lower concrete block was pressed by the holding means provided at the upper end. Block fence characterized by. In the concrete block and the block fence in which a plurality of concrete blocks are stacked on the basic concrete to form a block wall, and the basic concrete and the block wall are reinforced by vertical bars,
In the foundation concrete, a recess opening on the upper surface is formed around the longitudinal bars, and the mortar continuously filled in the vertical direction of the block along the longitudinal bars is continuously filled in the recesses,
In the part where the concave portion is not formed, a reinforcing bar is passed from the lower concrete block of the block wall to the foundation concrete, and the lower part of the reinforcing bar is embedded in the foundation concrete, and the holding means provided at the upper end is used. A block cage characterized by pressing the upper part of the lower concrete block.

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