JP6114103B2 - Seawall with transparent plate - Google Patents

Description

  The invention according to the claims has an opening penetrating in the thickness direction, and a transparent plate (including a translucent one) made of resin or glass is attached to the opening. (Including waterproofing walls for fresh water).

  In areas where there is a risk of inundation due to tsunamis, storm surges, floods, etc., it is widely practiced to prevent the ingress of water by building a tide wall in the sea or river. The tide wall is generally made of concrete, but concrete alone is not good for the scenery, and even when the water level rises, the state of the sea and rivers cannot be known through the tide wall. Therefore, in the following Patent Documents 1 and 2, a tide barrier using a transparent plate such as acrylic in part is proposed.

JP 2008-208681 A Japanese Patent No. 4134242

  If you install a transparent plate on the tide wall, you can see the sea, rivers, and lakes from the land side. It is also advantageous in terms of safety, such as being able to know the situation, etc., and easy to understand the level of vigilance and prepare for evacuation.

  Transparent plates such as acrylic resin and polycarbonate resin have the disadvantage of low hardness and weakness to heat. For this reason, the surface may not be clear due to scratches or partial deformation caused by being pressed by the fire of cigarettes, and the transparency may be lowered as a whole.

  The tide walls described in the above-mentioned Patent Documents 1 and 2 do not consider the countermeasure in such a case, and thus the transparency of the transparent plate is inevitably lowered. And after a few years, it will be difficult to clearly see the sea, rivers, etc. through the transparent plate, and the benefits related to landscape and safety may be lost. Even in the case where the transparent plate is a glass plate, the surface may be damaged, cracked or soiled, and the transparency may be lowered.

  The invention according to the claims of the present application provides a tide barrier with a transparent plate that can be easily replaced when the transparency of the transparent plate is reduced due to scratches on the surface. In particular, it provides a structure that is simple in structure, excellent in appearance, and in which rust and the like are unlikely to occur in parts.

The tide wall with a transparent plate according to the invention is provided with an opening that penetrates the tide wall in the thickness direction in the wall or between the columns or the frame, and the transparent plate is attached to the opening. (Including waterproofing walls for fresh water),
・ At any position in the thickness direction above the wall or column or frame corresponding to the outer periphery of the opening (either up, down, left, or right), the water side (sea, river or lake) The vertical surface (vertical surface or surface close to vertical) facing (the side close to etc.) (the end surface of the opening or the stepped portion where the cross-sectional dimension of the opening changes discontinuously) And)
A fastening plate including a portion parallel to the vertical surface is provided in a portion around the opening at a position spaced from the vertical surface to the water side,
-An outer edge portion of the transparent plate is sandwiched between the vertical surface and the parallel portion (vertical portion) of the retaining plate. The seawall shown in FIGS. 1 to 3 is a typical example.
As the transparent plate, a resin plate selected from polystyrene resin, polyvinyl chloride resin, acrylonitrile-styrene copolymer resin, methyl methacrylate-styrene copolymer resin, acrylonitrile-butadiene copolymer resin, polycarbonate resin and acrylic resin, or glass plate (Including a tempered glass plate) can be used. It may be translucent. It is also possible to use a transparent plate obtained by laminating a plurality of such transparent resin plates or glass plates, or a transparent plate in which a reinforcing mesh (net) is sandwiched between the laminated plates. It can be implemented within the range.

The tide wall with a transparent plate of the present invention has the following operational characteristics. That is,
1) There is an opening that penetrates the tide wall in the thickness direction, and a transparent plate is attached to the opening, so you can see the sea, rivers, lakes, etc. from the land side. Therefore, in addition to being excellent in scenery, even when the water level rises due to tsunami, storm surge, flood, etc., you can know the state of the sea, rivers, etc. through the tide barrier, which is also advantageous in terms of safety.
2) The above vertical surface is the surface of the wall or column or frame constituting the tide wall and faces the water side. A transparent board is attached by being pinched | interposed between this vertical surface and the fastening board provided in the water side rather than it. When water pressure acts on a transparent plate due to a tsunami, storm surge, flood, etc., the transparent plate is supported by a wall of a tide wall, a column or a frame through the above-described vertical surface. Of course, the walls of the tide walls, columns and frames are constructed with high strength, so the transparent plate can withstand water pressure with sufficient strength.
3) The transparent plate is attached by sandwiching an outer edge portion between the vertical surface and the fastening plate. In order to sandwich the outer edge of the transparent plate as such, the position of the fastening plate can be changed, or the thickness of the transparent plate such as a wedge can be changed between the vertical surface and the fastening plate. Stuff that can change the dimensions of the direction). Therefore, in this tide wall, by changing the position of the retaining plate in the direction opposite to the direction of sandwiching, removing the retaining plate, or changing the dimensions of the stuffed material, the transparent plate It is possible to replace the transparent plate having a lowered transparency by releasing the pinching of.

The above clasp is
i) Provided integrally with the above-mentioned wall or column or frame without using a fixing screw (bolts and nuts), or
ii) It is preferably attached to the wall or column or frame by a fastening screw used only between the vertical surface and the parallel part (vertical part) of the fastening plate.
FIG. 4 (e) is an example of the above i), and FIGS. 2, 3, 4 (b) and (d) are examples of the above ii).

The above-described retaining plate is generally attached to a wall of a tide wall, a column, or a frame using a retaining screw, and is simple. However, if a fastening screw is used, it will not be able to move or remove the fastening plate due to rusting or powder intrusion due to indirect contact with rainwater, etc., and the fastening plate cannot be moved or removed. Can be difficult.
In that respect, when the retaining plate is provided without using the retaining screw as in i) above, the structure is simple and the retaining screw does not stick, so the transparent plate cannot be replaced. There is no fear of becoming.
Further, when a fastening screw is used only between the vertical surface and the parallel part of the fastening plate as in ii) above, a sealing material is packed between the vertical surface and the fastening plate. Therefore, it is possible to prevent the retaining screw from coming into contact with rainwater or the like. That is, since the fixing can be prevented by covering the retaining screw, the transparent plate can be replaced smoothly.
In addition, in any of the cases i) and ii), since the retaining screw is not exposed to the outside, the appearance of the tide wall is particularly excellent.

In addition, the retaining plate has a portion bent toward the vertical surface together with the parallel portion, and the bent portion is located between the vertical surface and the parallel portion of the retaining plate. It is particularly preferable that the fixing screw used only in the above is attached to the wall or the column or the frame.
2, 3 and 4 (b) and (d) are examples of such a configuration.
As described above, the retaining plate is provided with a bent portion, and when a retaining screw is used at the bent portion, the retaining screw is put into rainwater or the like by filling a sealing material between the vertical surface and the retaining plate. It is easy to prevent contact.

When a metal frame body integrally having a flat plate portion covering the vertical surface and a screw member (bolt, nut, or the like) that is a fastening screw for the fastening plate is attached to the wall, column, or frame Is particularly advantageous.
2 and 3 show an example in which the metal frame 21 corresponding to the above is used.
When the metal frame as described above is attached to a wall or the like, when water pressure acts on the transparent plate, the force acts on the wall or the like of the tide wall via the metal frame. For this reason, it is avoided that a force acts locally on a part of the wall of the tide wall, and a substantially uniform pressure acts on a relatively wide area in contact with the metal frame. When such pressure is applied, it is difficult for part of the concrete to be lost or the metal pillars and frames to be deformed, so the tide wall strength including the transparent plate is substantially improved. It will be.
If such a metal frame is integrally provided with a screw member that is the above-mentioned set screw, it is easy to use a set screw (such as a bolt or a nut to be connected) coupled to the screw member. And the above-mentioned fastening plate can be attached smoothly.

When a restraining tool that releasably restrains the outer edge portion of the transparent plate by changing the dimension between the end surfaces is further sandwiched between the vertical surface and the parallel portion of the retaining plate. Good.
As a restraining tool that releasably restrains the outer edge of the transparent plate by changing the dimension between the end faces, for example, by changing the driving amount between the outer edge of the transparent plate and the vertical surface or the retaining plate A wedge that can be driven in is conceivable. A screw-type or fluid-pressure-type jack-like object or a bag-like object that is inflated by being filled with a fluid can also be used as the restraint device.
2, 3, and 4 (b), (c), (d), and (e), a simple manual screw jack, that is, a male screw member (bolt member) and a female screw member ( An object that is screwed to the nut member is used as the restraining tool 15.
When such a restraining tool is sandwiched between the vertical surface and the parallel portion of the retaining plate, it is easy to sandwich and restrain the outer edge portion of the transparent plate. This is because the outer edge portion of the transparent plate can be strongly sandwiched by increasing the dimension between the end surfaces of the restraining tool, and constraining the outer edge portion of the transparent plate can be released by conversely reducing the dimension between the end surfaces.

It is also preferred that the wall is made of precast concrete or steel.
If the wall is made of precast concrete or steel, the main part of the wall can be made in a dedicated factory, not on the site facing the sea or river. If it does so, the position and dimension, such as the said vertical direction surface formed in the opening which attaches a transparent plate, and its outer peripheral part, etc. can be formed with high precision. Thus, when the walls produced in the factory are installed on the site and a transparent plate is attached to them, it is possible to appropriately and smoothly attach the transparent plate, the fastening plate, etc. on the site.

Each of the vertical surface and the retaining plate may be parallel flange portions in the H-shaped steel as a support. Examples thereof are shown in FIG. 4 (e) and FIG.
In such a case, it is not necessary to attach a fastening plate using a fastening screw or the like. Therefore, there is an advantage that there is no inconvenience such as fixing of the fixing screw, and the appearance is not deteriorated by the exposure of the fixing screw.

Liner plates (band-like plates or sheets) are superimposed on both surfaces (each surface on the water side and the land side) of the outer edge of the transparent plate sandwiched between the vertical surface and the fastening plate. And preferred.
In each of the illustrated examples, liner plates 16 and 17 are overlapped on both surfaces of the outer edge portion of the transparent plate.
If it does as mentioned above, the outer edge part of a transparent board will not contact the said vertical direction surface, a fastening plate (the said parallel part), or said restraint tool directly. Therefore, local high pressure (restraint force) is prevented from acting on the outer edge portion of the transparent plate, and the inconvenience that the transparent plate is damaged or the like hardly occurs. In addition, as a liner board, what made of resin, rubber | gum, etc. can be used.

The liner plate may be made of metal.
If the liner plate is made of metal, the outer edge of the transparent plate can be strongly constrained, and it is possible not to simply support the outer edge, but to be close to a fixed state in which the angle of the transparent plate is also constrained. It is. When the outer edge portion of the transparent plate can be constrained in this way, the pressure resistance performance of the transparent plate can be improved without increasing the thickness of the transparent plate. That is, it can be said that the strength of the seawall can be effectively increased at low cost.

According to the tide wall with a transparent plate of the invention, when the transparent plate is lowered in transparency due to scratches on the surface or the like, the transparent plate can be easily replaced, thus maintaining the landscape and safety advantages of the tide wall for a long time. be able to.
Moreover, there exists an advantage that the structure regarding support of a transparent plate is simple. In addition to being excellent in appearance, a structure in which the inconvenience that the fixing screw is fixed and the replacement of the transparent plate is difficult to occur can be made.
It should be noted that the support strength of the transparent plate can be increased to withstand the water pressure with sufficient strength.

1 shows a first embodiment of the invention, and is a horizontal sectional view (FIG. 1A), a front view (FIG. 1B) of a tide wall 1, and a vertical sectional view viewed from the side (FIG. 1C). )). FIG. 2 is a detailed view of a portion II in FIG. 1C (and the vicinity of the outer edge portion of the transparent plate 10 following that portion). FIGS. 3A to 3D are explanatory views showing a procedure when the transparent plate 10 is removed from the tide wall 1 of FIGS. 1 and 2. Each of FIGS. 4A to 4F shows another embodiment of the invention, and is a view showing an attached state of the outer edge portion of the transparent plate 10 as in FIG. It is a perspective view which shows the tide wall which attaches the transparent plate 10 to the support | pillar 4 of H-section steel according to FIG.4 (e), and is comprised.

1 to 3 show a first embodiment of the invention.
The tide wall 1 with a transparent plate shown in FIG. 1 has a continuous wall 2 made of concrete along the coast, and has openings 3 penetrating in the thickness direction at intervals in the length direction. It is. A transparent plate 10 made of resin (or glass) is attached to each opening 3 of the tide wall 1 so as to close the opening 3. Since the sea can be seen from the land side through the transparent plate 10, it is excellent in scenery and has an advantage in disaster prevention.

For attaching the transparent plate 10 to each opening 3, the structure shown in FIG. 2 is adopted. That is,
1) First, at the middle position in the thickness direction of the wall 2, a step portion is formed in the opening 3 where the opening size on the land side becomes discontinuously smaller than the sea side (water side). As shown in FIG. 2, a vertically oriented surface 8 facing the sea side is formed. As shown in FIG. 1, since the opening 3 is provided in the middle of the wall 2, the vertically oriented surfaces 8 are formed on the four sides of the entire circumference surrounding the opening 3. As shown in FIG. 2, the inner surface 3 b of the opening 3 on the side having a larger dimension continues across the stepped portion from the outer peripheral portion of the vertical surface 8 to the sea side.

  2) A metal frame 21 having an L-shaped cross section is attached to the wall 2 so as to tightly cover the vertical surface 8 and the inner surface 3b of the opening 3 extending to the sea side. The metal frame 21 is integrally provided with a flat plate portions 21a and 21b that are in contact with the vertical surface 8 and the inner surface 3b, respectively, and a female screw member 21c for later fitting a fastening screw (bolt) 12. . At the time of attachment, the metal frame 21 is firmly attached to an accurate position by filling the outer side of the metal frame 21 with mortar or by embedding a fixing difference line in the wall 2 or the mortar.

  3) A fastening plate 11 is attached to the inside of the opening 3 at a position spaced about 10 cm from the vertical surface 8 to the sea side. The retaining plate 11 is a metal member having an L-shaped cross section having a vertical portion 11 a parallel to the vertical surface 8 and also having a bent portion 11 b bent toward the vertical surface 8. The fastening plate 11 can be fixed to the wall 2 by passing a fastening screw (bolt) 12 through a hole provided in the bent portion 11 b and fitting it to the female screw member 21 c of the metal frame 21. Since the retaining screw 12 is mounted between the longitudinal surface 8 and the longitudinal portion 11a of the retaining plate 11, it is not exposed to the outside. Depending on the dimensional relationship between the transparent plate 10 and the retaining plate 11, it is preferable to carry the transparent plate 10 to the vicinity of the vertical surface 8 before fixing the retaining plate 11.

  4) The transparent plate 10 has an outer edge portion 10a between the vertical surface 8 covered with the metal frame 21 as in 2) and the vertical portion 11a of the fastening plate 11 fixed as in 3). It is attached by pinching. For that purpose, as shown in the figure, between the vertical surface 8 and the fastening plate 11 (the vertical portion 11a), together with the outer edge portion 10a of the transparent plate 10, a liner plate that contacts the front and back surfaces of the outer edge portion 10a. 16 and 17 and a manual screw jack type restraining tool 15 capable of changing the dimension between the end faces are inserted. The restraining tools 15 are arranged at regular intervals at a plurality of locations along the outer edge portion 10 a of the transparent plate 10. The liner plates 16 and 17 are long and span a plurality of restraining tools 15. By rotating a part of the restraining tool 15 and extending the dimension between the end faces, the edge 10a of the transparent plate 10 can be restrained by sandwiching the edge 10a between the vertically oriented surface 8 and the fastening plate 11.

  5) After the transparent plate 10 is restrained and attached according to 4) above, the sealing material 19 is attached. The sealing material 19 is attached to the land side and the sea side of the transparent plate 10 between the vertical surface 8 and the retaining plate 11. A space between the vertical surface 8 and the vertical portion 11a of the retaining plate 11 so that rainwater, seawater, etc. do not reach the inner portion (such as the retaining screw 12) surrounded by the vertical surface 8 and the retaining plate 11. Is covered with a sealing material 19. In addition, the sealing material 19 may be filled with a regular object, but may be coated or sprayed with an irregular object so as to cover a necessary part.

In the tide wall 1 of FIGS. 1 and 2, the operation of removing the transparent plate 10 for replacement can be performed according to the procedures of FIGS. That is, first, the sealing material 19 is removed (FIG. 3A), the restraint of the transparent plate 10 is released by rotating a part of the restraining tool 15 (same as FIG. 3B), and the retaining screw 12 is further loosened. (C), the retaining plate 11 is removed and the transparent plate 10 is removed (d).
In order to newly attach the transparent plate 10, the reverse procedure may be taken.

4 (a) to 4 (f) show other structures for attaching the transparent plate 10 to the opening 3 with respect to the tide wall with a transparent plate according to the invention. The same components as those in FIGS. 1 to 3 are denoted by the same reference numerals.
FIG. 4A is an example in which the restraint 15 is not used by changing the arrangement of the fastening screws 12 of the fastening plate 11. By setting the length direction of the retaining screw 12 to the thickness direction of the wall 2, the outer edge portion 10 a of the transparent plate 10 can be sandwiched by the force of the retaining screw 12 and the retaining plate 11.

FIG. 4B is an example in which the metal frame 21 used in the example of FIG. 2 is omitted. In this example, it is necessary to embed a mating screw member 22 to which the retaining screw 12 is fitted in the wall 2 in advance.
FIG. 4C is an example in which the fastening plate 11 is formed in a flat plate shape and simplified. A restraint 15 is used. Also in this example, the screw member 22 on the other side to which the retaining screw 12 is fitted is embedded in the wall 2 in advance.

FIG. 4 (d) shows an example in which a transparent plate 10 is attached to the support 4 in a tide wall using a steel material having a T-shaped cross section as the support 4. The water-side surface of the flange portion 4a included in the support column 4 is a vertical surface 8, and the outer edge portion of the transparent plate 10 is constrained between the fixing plate 11 attached to the other portion 4b of the support column 4 with a fixing screw 12. The tool 15 and the liner plate are restrained.
FIG. 4 (e) is an example in which the transparent plate 10 is attached to the column 4 in the tide wall as shown in FIG. Two parallel flange portions 4 a in the H-shaped steel are defined as a vertically oriented surface 8 and a retaining plate 11. Do not use a retaining plate attached with a retaining screw. When the sealing material 19 is applied, the appearance becomes extremely simple and aesthetic as shown in FIG.

  FIG. 4 (f) is an example in which H-shaped steel is used as the support column 4 and the most water-side surface of the flange portion 4 a is the vertical surface 8. By using a retaining screw 12 for the flange portion 4a, a flat retaining plate 11 is attached to the sea side of the longitudinally facing surface 8, and the edge of the transparent plate 10 is sandwiched between the retaining plates 11. .

DESCRIPTION OF SYMBOLS 1 Seawall with a transparent board 2 Wall 3 Opening 4 Support | pillar 8 Vertical face 10 Transparent board 10a Outer edge part 11 Retaining board 11a Longitudinal part (parallel part)
11b Bent part 12 Retaining screw 15 Restraint 16/17 Liner plate 19 Sealing material 21 Metal frame 21c Female screw member

Claims (8)

An opening that penetrates the tide wall in the thickness direction is provided in the middle of the wall, surrounded by the wall around the entire circumference, and a tide wall with a transparent plate with a transparent plate attached to the opening,
At any position in the thickness direction, the wall that is the outer peripheral portion of the opening has a vertical surface facing the water side,
At a position spaced from the vertical surface to the water side, a fastening plate including a portion parallel to the vertical surface is attached to the wall by a fastening screw in a portion around the opening ,
An outer edge portion of the transparent plate is sandwiched between the vertical surface and the parallel portion of the retaining plate, and the retaining screw extends from the longitudinal surface to the parallel portion of the retaining plate. A tide wall with a transparent plate, which is covered with a sealing material attached between the two positions . An opening that penetrates the tide wall in the thickness direction is provided in the wall, and a tide wall with a transparent plate with a transparent plate attached to the opening,
At any position in the thickness direction, the wall that is the outer peripheral portion of the opening has a vertical surface facing the water side,
The vertical surface is covered by the flat plate portion of the metal frame,
At a position spaced from the vertical surface to the water side, a fastening plate including a portion parallel to the vertical surface is provided in a portion around the opening,
The outer edge of the transparent plate is sandwiched between the vertical surface and the parallel portion of the retaining plate,
The fastening plate is attached to the wall by a fastening screw used only between the longitudinal surface and the parallel part of the fastening plate;
In addition, the retaining plate has a portion bent toward the longitudinal surface together with the parallel portion, and in the bent portion, between the longitudinal surface and the parallel portion of the retaining plate. A tide wall with a transparent plate, which is attached to the wall with the above-mentioned retaining screw used only in the case. Claims, wherein said metal frame is, integrally includes a screw member is screwed for said fastening plate together with the flat portion covering the vertical surface, characterized in that it attached to said wall 2. A tide wall with a transparent plate according to 2 . A restraining tool for releasably restraining the outer edge portion of the transparent plate by changing the dimension between the end surfaces is further sandwiched between the vertical surface and the parallel portion of the retaining plate. The tide barrier with a transparent plate according to any one of claims 1 to 3 . The said wall is made from precast concrete or steel materials, The tide wall with a transparent board in any one of Claims 1-4 characterized by the above-mentioned. The transparent plate according to any one of claims 1 to 5 , wherein a liner plate is overlapped on both surfaces of an outer edge portion of the transparent plate sandwiched between the vertical surface and the fastening plate. With a seawall. The tide barrier with a transparent plate according to claim 6 , wherein the liner plate is made of metal. The said transparent board is replaceable, The tide wall with a transparent board in any one of Claims 1-7 characterized by the above-mentioned.

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