JP2018009374A - Repair structure of bleacher, repair method of bleacher and component for bleacher repair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a repair structure of the bleachers, a repair method of the bleachers and a component for bleacher repair in which a burden can be reduced temporally, economically and environmentally concerning the bleachers of a structure including a forward retaining wall and a rearward retaining wall on a slope.SOLUTION: A repair structure 100 of the bleachers includes an erection body 101 erected between a forward retaining wall 91 and a rearward retaining wall 92. The erection body 101 is constituted of a first erection body 102 formed by extending a body part 102b in the direction being perpendicular from a plate-like mounting part 102a, and a second erection body 103 formed by extending two plate-like connection parts 103b in the direction being perpendicular from a plate-like mounting part 103a. The second erection body 103 is configured such that a mounting position can be adjusted to the body part 102b of the first erection body 102. The erection body 101 is provided by making two floor plate struts 106 stand up on the body part 102b, and these two floor plate struts 106 support a floor plate 94 through a floor plate support 110.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a structure for repairing a bleacher seat used for repairing a bleacher seat provided on a slope of an inclined land, a method for repairing a bleacher seat, and a part for repairing a bleacher seat.

  2. Description of the Related Art Conventionally, in a circuit for performing motor sports, an athletic field for performing sports competitions, or a theater for performing theaters, a seat (stand) for a large number of spectators to sit and view has been provided. In recent years, the use period has reached a predetermined date, and some bleachers need to be repaired. In this case, the renovation work for the bleachers requires a lot of time and cost, so it is time-consuming to continue to use as much of the existing components of the seats as possible. It is extremely preferable in reducing the burden on the economy and the environment.

  In recent years, there is a bleacher seat 90 formed on a slope on an inclined ground as shown in FIGS. 8 and 9 as a bleacher seat that requires renovation work. The bleacher seat 90 is provided with a floor plate 94 on a concrete front retaining wall 91 and a rear retaining wall 92 that extend in parallel to each other along a direction orthogonal to an inclination direction (an arrow direction in the drawing) of an inclined surface on an inclined ground. A plurality of seats 95 are provided on the floor plate 94. In this case, the front retaining wall 91 and the rear retaining wall 92 are connected to each other at a predetermined interval by a concrete connecting wall 93 extending in the inclined direction, and form a lattice shape in plan view (FIG. 9). In addition, illustration of the floor board 94 is abbreviate | omitted in FIG.

  And, for the renovation work of the bleacher seat having the structure including the front retaining wall 91 and the rear retaining wall 92 on such a slope, a repair method with less burden on time, economy and environmental load is desired. No renovation tool has been proposed. In view of such a background, the inventor of the present invention is a seat repair part that can reduce the burden in terms of time, economics, and environmental load on a seat with a structure including a front retaining wall 91 and a rear retaining wall 92 on a slope. And a new method for renovating bleachers. Therefore, there is no prior art document to be described.

  The present invention has been made to cope with the above-mentioned problems, and the purpose of the present invention is to provide a bleacher seat that can reduce the burden in terms of time, economy, and environmental load regarding a bleacher seat having a front retaining wall and a rear retaining wall on a slope. It is to provide a renovation structure, a method for renovating a bleacher, and a part for renovating a bleacher.

  In order to achieve the above object, a feature of the present invention is that a floor plate is provided on a front retaining wall and a rear retaining wall that extend in parallel to each other along a direction orthogonal to the inclination direction of the slope, and a plurality of floor plates are provided on the floor plate. A renovation structure of a bleacher seat, which is a modification of an existing bleacher seat with a seat, and is constructed between a front retaining wall and a rear retaining wall in a state of floating from the ground, and a construction body And a floor board column that supports the floor board from below.

  According to the feature of the present invention configured as described above, the retrofitting structure of the bleacher seat includes an erected body that is constructed between the front retaining wall and the rear retaining wall and supports the floor plate. The front retaining wall and the rear retaining wall can be effectively utilized to repair the bleachers, and the time, economical and environmental burdens for the repair work can be reduced. In addition, the retrofitting structure of the bleacher seat according to the present invention is provided in a state where the installation body is floated between the respective walls of the front retaining wall and the rear retaining wall to support the floor plate. Even if the floor surface or the ground bearing capacity between them is weak, the bleachers can be renovated using the front retaining wall and the rear retaining wall.

  Another feature of the present invention is that in the retrofit structure for the auditorium, a floor plate support that is provided between the floor column support and the floor plate and extends along the front retaining wall and the rear retaining wall to support the floor plate. The floorboard support is supported by floorboard struts respectively extending from a plurality of installation bodies arranged below the floorboard support.

  According to another feature of the present invention configured as described above, the retrofit structure of the bleacher seat is configured such that the floorboard support columns respectively extending from the plurality of erection bodies are connected to the floorboard support body, so that the height adjustment of each floorboard support column is performed. Further, the connecting work to the floor board becomes easy and the adjusting work can be performed accurately. In addition, the floorboard support can stably support the floorboard and simplify the configuration of the floorboard when it is supported in linear or planar contact along the front retaining wall and the rear retaining wall. The weight can be reduced.

  According to another aspect of the present invention, in the retrofitting structure for the auditorium, a side erection body is provided between at least one of the front retaining wall and the rear retaining wall and the floor plate support. There is.

  According to another feature of the present invention configured as described above, the retrofit structure of the bleacher seat has a side erection body constructed between at least one wall surface of the front retaining wall and the rear retaining wall and the floor plate support. Therefore, the floor board support can be stabilized and the floor board can be stably supported. In addition, a side erection body can be provided so that both may be pressed or pulled between a floor board support body and a front retaining wall and / or a rear retaining wall.

  Another feature of the present invention resides in that, in the retrofitting structure of the auditorium, the floor material support includes an embedded body embedded in the floor plate.

  According to another feature of the present invention configured as described above, the retrofitting structure of the bleacher seat includes an embedded body in which the floor material support is embedded in the recording floor board, so that the floor board is made stronger and more stable. Can be supported.

  In addition, another feature of the present invention is that, in the refurbishment structure of the auditorium, there is further provided a support body connecting tool for connecting adjacent floor board supports to each other.

  According to another feature of the present invention configured as described above, the retrofitting structure of the bleacher seat includes the support body connecting tool that connects the floor board supports adjacent to each other, and thus connects the floor board supports to each other. Thus, the floor board can be supported more firmly and stably.

  Another feature of the present invention is that, in the retrofitting structure of the auditorium, the length of the installation body is between the end fixed to the wall of the front retaining wall and the end fixed to the wall of the rear retaining wall. Is that it is telescopic.

  According to another feature of the present invention configured as described above, the retrofit structure of the bleacher seat includes an end portion where the installation body is fixed to the wall surface of the front retaining wall and an end portion which is fixed to the wall surface of the rear retaining wall. Since the length between them can be expanded and contracted, the front retaining wall and the rear retaining wall can be used in common among a plurality of types of retaining walls, and the pair of front retaining walls and the rear Even in the case of the retaining wall having different intervals depending on the location, it can be reliably installed by appropriately adjusting the length of the erection body. In particular, it is extremely beneficial to be able to adjust the length of the erection body because the front and rear retaining walls that make up the bleachers that need to be refurbished may be partially spaced due to deformation such as undulations. It is.

  In addition, the present invention can be implemented not only as an invention of a structure for repairing a bleacher seat, but also as an invention of a method for repairing a seat and a part for a seat seat repair.

  Specifically, the method for renovating the auditorium is that a floor plate is provided on a front retaining wall and a rear retaining wall that extend in parallel to each other along a direction orthogonal to the inclined direction of the slope, and a plurality of seats are provided on the floor plate. A method for renovating an existing bleacher seat having a structure in which a floor board removing process for removing a floor board provided on the front retaining wall and the rear retaining wall, and a front retaining wall and a rear retaining wall from which the floor board has been removed are provided. What is necessary is just to make it include the construction body installation process which constructs a construction body in the state which floated from the ground between each wall surface, and the floor board arrangement | positioning process which arrange | positions a floor board on a construction body via a floor board support | pillar.

  In addition, the part for repairing the auditorium is provided with a floor plate on the front retaining wall and the rear retaining wall extending in parallel with each other along a direction orthogonal to the inclination direction of the slope, and a plurality of seats are provided on the floor plate. Parts for renovation of an existing bleacher seat with the above structure, which are installed between the front retaining wall and the rear retaining wall in a state of floating from the ground, and supported by the construction body It is good to provide the floor-plate support | pillar which is done and supports a floor-plate from the downward direction. According to this, the method for repairing the seat and the parts for repairing the seat can be expected to have the same effects as the structure for repairing the seat.

It is a top view partially shown in the state except a floor board, in order to show the outline of the internal structure of the repair structure of the bleacher seat which concerns on one Embodiment of this invention. It is sectional drawing of the repair structure of the bleacher seat seen from the 2-2 line shown in FIG. It is sectional drawing of the repair structure of the bleacher seat seen from the 3-3 line shown in FIG. The outline structure of the 1st installation body which comprises the installation body used with the repair structure of the bleacher seat shown in FIG. 1 is shown, (A) is a top view of a 1st installation body, (B) It is a front view of a 1st installation body, (C) is a side view of a 1st installation body. The outline structure of the 2nd installation body which comprises the installation body used with the repair structure of the bleacher seat shown in FIG. 1 is shown, (A) is a top view of a 2nd installation body, (B) is It is a front view of a 2nd installation body, (C) is a side view of a 2nd installation body. FIG. 2 shows an outline of the external structure of a floor board support body, a side erection body, and an embedded body used in the structure for repairing a bleacher seat shown in FIG. 1, (A) is a plan view of the floor board support body, and FIG. FIG. 3 is a front view of a floor board support. It is a flowchart which shows the flow of the main processes of the repair method of the bleacher seat which concerns on one Embodiment of this invention. It is sectional drawing which shows partially the internal structure of the conventional bleachers. It is a top view which shows partially the outline of the internal structure of the bleacher seat shown in FIG. 8 in the state which excluded the floor board.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a bleacher seat repair structure and a seat seat repair method according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view partially showing a state in which a floor board 94 is removed in order to show an outline of an internal configuration of a structure for retrofitting a bleacher seat 100 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the retrofit structure 100 for the auditorium as viewed from line 2-2 shown in FIG. FIG. 3 is a cross-sectional view of the retrofit structure 100 for the auditorium as viewed from the line 3-3 shown in FIG. Note that each drawing referred to in the present specification is schematically represented by exaggerating some of the components in order to facilitate understanding of the present invention. For this reason, the dimension, ratio, etc. between each component may differ.

(Configuration of existing seat 90)
First, before explaining the structure for renovation of a bleacher seat 100 according to the present invention, an existing bleacher seat 90 to be subjected to renovation work will be described. As shown in FIGS. 8 and 9, the bleacher seat 90 is formed along the slope in the inclined ground IG, and includes a front retaining wall 91 and a rear retaining wall 92.

  The front retaining wall 91 and the rear retaining wall 92 are concrete structures for supporting the floor board 94, and stand up from the slope of the slope IG with respect to the slope direction of the slope of the slope IG (arrow direction shown in the drawing). Are formed so as to extend in parallel with each other along the orthogonal transverse direction. In this case, the front-rear relationship between the front retaining wall 91 and the rear retaining wall 92 is relative to the slope direction of the slope in the sloped land IG, and the front retaining wall 91 is sloped in the sloped ground IG with respect to the rear retaining wall 92. It is located on the lower side of the tilt direction.

  The front retaining wall 91 and the rear retaining wall 92 are connected to each other by a connecting wall 93. The connecting wall 93 is a concrete structure for connecting the front retaining wall 91 and the rear retaining wall 92 to each other, and is formed in a state of standing from the slope of the inclined ground IG at a predetermined interval in the lateral direction. Yes. In this case, the connecting wall 93 can be configured by an inclined surface that connects the upper surface of the front retaining wall 91 and the upper surface of the rear retaining wall 92, but in the present embodiment, is the same height as the upper surface of the front retaining wall 91. Is formed. The front retaining wall 91, the rear retaining wall 92, and the connecting wall 93 are integrally formed, and are formed in a lattice shape in plan view.

  The floor board 94 is a concrete structure that supports the seat 95 and constitutes a floor surface around the seat 95, and is formed in a flat plate shape. The floor plate 94 is fixed to the upper surface of the front retaining wall 91, the upper surface of the connecting wall 93, and the side surface of the rear retaining wall 92 while being placed on the upper surfaces of the front retaining wall 91 and the connecting wall 93. The seat 95 is a stool on which a viewer sits, and is fixed to the upper surface of the floor board 94 with a bolt (not shown). Further, in a rectangular region surrounded by one front retaining wall 91, one rear retaining wall 92, and two connecting walls 93, a cover body 96 made of mortar for covering the ground of the inclined ground IG and preventing moisture is provided. Is formed.

(Structure of the redemption structure 100 for the bleachers)
A renovation structure for a bleacher seat (hereinafter, simply referred to as a “renovation structure”) 100 includes a construction body 101. The erection body 101 is a metal part that is erected between the front retaining wall 91 and the rear retaining wall 92 and supports the floor plate 94, and mainly includes a first erection body 102 and a second erection body 103. Configured.

  As shown in FIGS. 4A to 4C, the first installation body 102 is a component attached to one of the wall surfaces of the front retaining wall 91 and the rear retaining wall 92, It is comprised by the attaching part 102a, the trunk | drum 102b, and the rib 102e. The attachment portion 102a is a portion that is attached to the wall surface of the front retaining wall 91 or the wall surface of the rear retaining wall 92 via the attachment bolt 104, and is formed in a flat plate shape.

  The trunk portion 102b is a portion that is provided between the front retaining wall 91 and the rear retaining wall 92 and that receives a load from the floor plate 94, and is formed to extend in a direction orthogonal to the mounting portion 102a. More specifically, the body portion 102b is formed in a U-shaped cross-section that is bent downward on both sides in the width direction of a long metal plate and opens downward in the figure. Moreover, the trunk | drum 102b is formed in length shorter than the distance between each wall surface of the front retaining wall 91 and the back retaining wall 92. As shown in FIG.

  In the trunk portion 102b, two attachment holes 102c for attaching the floor column support 106 are formed in the center portion of the upper surface. In addition, one end of the trunk portion 102b is fixed to the mounting portion 102a by welding, and three positioning holes 102d are formed in each of two side portions on the other end side. The rib 102e is a plate-like component for firmly integrating the attachment portion 102a and the body portion 102b, and is welded to the attachment portion 102a and the body portion 102b, respectively. It should be noted that the body portion 102b may be configured in a shape other than the U-shaped cross section, for example, a flat plate shape, a cylindrical shape, or a solid rod shape. 4A to 4C, a part of the central portion of the body portion 102b is omitted.

  As shown in FIGS. 5A to 5C, the second erected body 103 is a component attached to the other wall surface of the wall surface of the front retaining wall 91 and the wall surface of the rear retaining wall 92. It is comprised by the attachment part 103a and the connection part 103b. The attachment portion 103a is a portion that is attached to the wall surface of the rear retaining wall 92 or the wall surface of the front retaining wall 91 via the attachment bolts 104 in the same manner as the attachment portion 102a, and is formed in a flat plate shape.

  The connection part 103b is a part connected with the trunk | drum 102b of the 1st installation body 102, and is comprised by the two plate-shaped bodies extended in the direction orthogonal to the attachment part 103a. In this case, the two connecting portions 103b are disposed on both sides of the body portion 102b and are provided at intervals in surface contact with the two side surfaces. In these two connecting portions 103b, elongated holes 103c are formed at positions facing the positioning holes 102d of the body portion 102b.

  The long hole 103c is a through hole for attaching the attachment position of the second erected body 103 to the distal end portion of the trunk portion 102b in a state where the attachment position can be changed in the longitudinal direction of the trunk portion 102b. That is, the installation body 101 is desired to have a length in the longitudinal direction by positioning at any position of the long hole 103c with respect to at least one of the three positioning holes 102d, and connecting and fixing with the connecting bolt 105. Can be adjusted to length.

  The floor board support | pillar 106 is a part for supporting the floor board 94 on the installation body 101, and is comprised by screwing a nut to the both ends of a metal rod, respectively. In this embodiment, two floor plate columns 106 are provided in one installation body 101, and one end (lower side in the drawing) has an attachment hole 102c in the body 102b of the first installation body 102, respectively. The other end (the upper side in the figure) is connected to the floor board support 110 via the intermediate board 107.

  The intermediate plate 107 is a metal part for connecting the floor plate support 106 to the floor plate support 110, and is formed of a rectangular plate-like body in plan view. The intermediate plate 107 has a floor plate support 106 penetratingly attached to a central portion thereof, and an edge portion of the intermediate plate 107 is attached to a support body 111 of the floor plate support 110 by screws.

  The floor board support 110 is a component that supports the floor board 94 by connecting the floor board columns 106 of the plurality of installation bodies 101, and is configured by assembling metal materials in a frame shape. More specifically, as shown in FIGS. 6 (A) and 6 (B), the floor board support 110 is mainly configured by including two support bodies 111 and four connecting bodies 112.

  The support body 111 is a portion that supports the floor plate 94 by connecting the floor plate columns 106 of the plurality of installation bodies 101, and two metal plate members are parallel to each other along the front retaining wall 91 and the rear retaining wall 92, respectively. It is extended and formed. In the present embodiment, the support body 111 is composed of two hat-shaped steels. Here, the hat-shaped steel is a steel material in which a cross-sectional shape is formed into a hat (hatched hat) shape by bending a long steel plate along the longitudinal direction. These support bodies 111 are formed to have a length shorter than the interval between the two connecting walls 93 adjacent to each other. Needless to say, the support body 111 may be formed in a shape other than the hat-shaped steel, a flat plate shape, a cylindrical shape, or a solid rod shape.

  The connection body 112 is a part for connecting the two support bodies 111 to each other, and a metal plate material is installed between the two support bodies 111 with a predetermined interval. In this embodiment, the connection body 112 is comprised with L-shaped steel. Here, the L-shaped steel is a steel material whose cross-sectional shape is formed into an L shape by bending a long steel plate along the longitudinal direction. These four coupling bodies 112 are fixed to the two support bodies 111 by welding. Of course, the coupling body 112 may be formed in a shape other than L-shaped steel, a flat plate shape, a cylindrical shape, or a solid rod shape.

  Side support body 113, embedded body 114, and elastic body 115 are attached to floor board support body 110, respectively. The side erection body 113 is a part for stabilizing the floor board support body 110, and is configured by screwing nuts to both ends of a metal bar. Two side support bodies 113 are provided on each of two support main bodies 111, one end of which is connected to the support main body 111, and the other end is a wall surface of the front retaining wall 91 or a rear support. It is pressed against the wall surface of the wall 92.

  The embedded body 114 is a component embedded in the floor plate 94 in order to firmly connect the floor plate support 110 and the floor plate 94, and is configured by nuts screwed to both ends of a metal bar. Has been. Two embedded bodies 114 are provided in a standing state at both end portions of the support main body 111, one end is connected to the support main body 111 and the other end is an embedded hole 94 a of the floor plate 94. It is buried in the inside by a sealing plug 94b.

  The elastic body 115 is a part for elastically supporting the floor board 94, which is disposed between the support body 111 and the floor board 94, and is made of a rectangular plate-like rubber material. The elastic body 115 is fixed on the support body 111 above the floor board support 106 with a double-sided tape (not shown).

  In addition, two support body connection tools 116 are provided between floor board supports 110 adjacent to each other in the lateral direction of the repair structure 100. The support body connection tool 116 is a part for connecting the floor board support bodies 110 adjacent to each other in the lateral direction of the repair structure 100, and is formed of a metal plate-like body. These two support body couplers 116 are attached to the end portions of the floor board support body 110 whose both end portions are adjacent to each other by screws.

(Renovation method using the renovation structure 100 for bleachers)
Next, a method of repairing the bleacher seat 90 using the repair structure 100 will be described with reference to FIG. First, an operator removes the floor board 94 which comprises the existing bleacher seat 90 as a 1st process. Specifically, the worker removes the seat 95 from the existing seat 90, and then removes the floor plate 94 fixed to the front retaining wall 91, the rear retaining wall 92, and the connecting wall 93. In this case, the operator can remove the floor board 94 by the hanging work of crushing and removing the floor board 94 using a suspension machine. The removal process of the floor board 94 in the first process corresponds to the floor board removal process according to the present invention.

  In addition, when an operator can remove the floor board 94 from the front retaining wall 91, the rear retaining wall 92, and the connection wall 93 without crushing, it is not always necessary to remove the floor board 94 by the hanging work. Further, when the upper surface of the front retaining wall 91 is not horizontal due to the removal work of the floor board 94, the worker keeps the upper surface of the front retaining wall 91 horizontal by depositing concrete or mortar. Further, the operator may leave the existing connecting wall 93 as it is, remove it to a height lower than the height of the front retaining wall 91, or remove all of the connecting wall 93. In the present embodiment, the operator removes the existing connecting wall 93 to a height lower than the height of the front retaining wall 91.

  Next, an operator installs the erection body 101 as a second step. Specifically, the operator prepares the erection body 101, attaches the first erection body 102 to the wall surface of the front retaining wall 91 or the wall surface of the rear retaining wall 92 via the mounting bolt 104, and then attaches the second erection body. 103 is attached to the wall surface of the rear retaining wall 92 or the wall surface of the front retaining wall 91 via mounting bolts 104. In this case, the worker attaches the first erection body 102 and the second erection body 103 in a floating state without contacting the cover body 96. In addition, the operator holds the first erected body 102 and the second erected body 103 in front of the front retaining wall in a state in which the body 102b of the first erected body 102 is inserted between the two connecting portions 103b of the second erected body 103. 91 and the rear retaining wall 92, respectively.

  Next, the operator firmly connects the first erected body 102 and the second erected body 103 to each other by tightening the connecting bolts 105 through the two sets of positioning holes 102d and the long holes 103c. Thereby, the worker can attach the construction body 101 in a state of floating in the air between the front retaining wall 91 and the rear retaining wall 92.

  Next, the operator prepares two floor board struts 106 and attaches them to the attachment holes 102c of the trunk portion 102b. Thereby, the two floor board support | pillars 106 are provided in the state which stood up from the upper surface of the trunk | drum 102b in the construction body 101. As shown in FIG. The step of attaching the erection body 101 in the second step corresponds to the erection body installation step according to the present invention.

  Next, an operator installs the floor board support body 110 as a 3rd process. Specifically, the operator prepares the intermediate plates 107 corresponding to the floor plate support 110 and attaches these intermediate plates 107 to the upper ends of the floor plate columns 106 in a temporarily fixed state. Next, the operator prepares the floor board support 110 and places it on the intermediate board 107, and then adjusts the height of the intermediate board 107 on each floor board column 106 to adjust the height and level of the floor board support 110. Position. In this case, the operator adjusts the height of the floor board support 110 so that the height of the upper surface of the front retaining wall 91 matches the height of the support body 111.

  Next, the operator prepares four side erected bodies 113 and four embedded bodies 114 and attaches them to the floor board support 110 respectively. Specifically, the operator attaches the two side construction bodies 113 between the support body 111 and the front retaining wall 91 and attaches the remaining two side construction bodies 113 to the support body 111 and the rear retaining wall 92. Install in between. In this case, the four side construction bodies 113 are attached in a state in which the respective wall surfaces of the front retaining wall 91 and the rear retaining wall 92 are pressed. Thereby, the floor board support body 110 is stably installed on the construction body 101.

  The operator attaches the two embedded bodies 114 to the upper surface on one end side of the support body 111 and attaches the remaining two embedded bodies 114 to the upper surface on the other end side of the support body 111. In this case, the operator adjusts the height of each embedded body 114 so that the front end portion of each embedded body 114 is positioned below the upper surface of the floor board 94 placed on the floor board support 110.

  The installation work of the floor board support 110 is performed between all the front retaining walls 91 and the rear retaining walls 92 on which the floor board 94 is installed. And an operator prepares the coupling body 112, constructs the coupling body 112 between the floor board support bodies 110 which mutually adjoin, and connects mutually.

  Next, an operator installs the floor board 94 as a 4th process. Specifically, the operator prepares the elastic body 115, the floor plate 117, the receiving bolt 118, and the floor plate 94, respectively. Here, the floor plate 117 is a component that is disposed between the front retaining wall 91 and the floor plate 94 and serves as a buffer material for the load from the floor plate 94, and is configured by forming a resin material into a plate shape that extends in a long length. ing. The floor plate 117 is disposed in a state where two floor plates 117 are arranged in parallel on the upper surface of the front retaining wall 91, and is fixed to the upper surface of the front retaining wall 91 and the lower surface of the floor plate 94 with an adhesive (not shown). Further, the floor plate 117 is formed slightly thinner than the elastic body 115 in the present embodiment. In FIG. 1, the floor plate 117 is not shown.

  The receiving bolt 118 is a part that becomes a catch of the gap filling material 119 made of a mortar material filled between the rear retaining wall 92 and the floor plate 94, and a nut is attached to a metal rod body on which a male screw is formed. Is configured by screw fitting. A plurality of the receiving bolts 118 are installed along the rear retaining wall 92 at the lower part of the portion of the rear retaining wall 92 where the floor plate 94 faces.

  Moreover, the floor board 94 is manufactured in a separate process in advance. Specifically, the floor board 94 is manufactured by molding a concrete material into a plate shape. The floor plate 94 may be continuously used as long as the existing floor plate 94 can be used continuously. In these cases, a through hole-like embedded hole 94 a is formed in the floor plate 94 at a position corresponding to the embedded body 114.

  An operator arrange | positions the elastic body 115 on the support main body 111 of the floor board support body 110, and after arrange | positioning the floor board 117 on the upper surface of the front retaining wall 91, arrange | positions the floor board 94 on these. In this case, the operator inserts the embedded body 114 into the embedded hole 94 a of the floor board 94 and arranges the floor board 94 by forming a gap between the wall surface of the rear retaining wall 92 and the rear end face of the floor board 94.

  Next, the worker fills the embedding hole 94a of the floor board 94 with a mortar material and embeds the leading end of the embedding body 114 with the sealing plug 94b, and connects the wall surface of the rear retaining wall 92 and the rear end face of the floor board 94 to each other. A gap filling material 119 is formed by filling a mortar material in the gap therebetween. Thereby, the floor board 94 is installed in the state supported by the front retaining wall 91 and the floor board support body 110. Note that the operator can install the floor plate 94 by directly abutting the rear end surface of the floor plate 94 against the wall surface of the rear retaining wall 92 without providing the receiving bolt 118 and the gap filling material 119.

  Next, the worker installs the seat 95 as the fifth step. Specifically, the operator prepares a new seat 95 and then fixes the seat 95 on the floor board 94 using a bolt (not shown). In this case, the seat 95 may be continuously used as long as the existing seat 95 is still usable. Thereby, the repair structure 100 of the bleachers is completed. The worker can omit the installation work of the seat 95 when the floor board 94 directly constitutes a seating surface.

  As can be understood from the above description of the operation, according to the above embodiment, the retrofit structure 100 for the auditorium is provided with the erection body 101 that is laid between the wall surfaces of the front retaining wall 91 and the rear retaining wall 92 and supports the floor plate. Therefore, it is possible to renovate the bleacher seat 90 by effectively utilizing the front retaining wall 91 and the rear retaining wall 92 which are existing structures, thereby reducing the time, economic and environmental burden of the renovation work. can do. In addition, in the bleacher seat repair structure according to the present invention, the installation body 101 is provided in a state of floating between the wall surfaces of the front retaining wall 91 and the rear retaining wall 92 and supports the floor plate 94. Even if the ground strength between the retaining wall 92 and the ground surface is weak, the front seat wall 91 and the rear retaining wall 92 can be utilized to repair the bleacher seat 90.

  Furthermore, in carrying out the present invention, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the object of the present invention.

  For example, in the above-described embodiment, the erection body 101 includes the first erection body 102 and the second erection body 103. In this case, the installation body 101 is provided with the mounting hole 102c in the first installation body 102, and the second installation body 103 is provided with the long hole 103c. As a result, the construction body 101 can be configured such that the length (the interval between the attachment portion 102a and the attachment portion 103a) can be expanded and contracted, and the length can be adjusted even if there are various intervals between the front retaining wall 91 and the rear retaining wall 92. Can respond. However, the erection body 101 may be configured such that the first erection body 102 and the second erection body 103 are integrally configured so that the length cannot be adjusted.

  Moreover, in the said embodiment, the repair structure 100 of the auditorium was comprised including the floor board support body 110. FIG. In other words, the audience seat renovation structure 100 is configured such that the floor plate support 106 indirectly supports the floor plate 94 via the floor plate support 110. However, the audience seat refurbishment structure 100 may be configured such that the floorboard column 106 directly supports the floorboard 94. According to this, the retrofit structure 100 for the auditorium can simplify the configuration and omit the installation process of the floor board support 110. In this case, the audience seat repair structure 100 can omit at least the side erection body 113 and the support body coupling tool 116.

IG ... Slope,
90 ... bleacher seat, 91 ... front retaining wall, 92 ... rear retaining wall, 93 ... communication wall, 94 ... floor plate, 94a ... buried hole, 94b ... sealing plug, 95 ... seat, 96 ... cover body,
DESCRIPTION OF SYMBOLS 100 ... Renovation structure of bleachers, 101 ... Installation body, 102 ... 1st installation body, 102a ... Attachment part, 102b ... trunk | drum, 102c ... Installation hole, 102d ... Positioning hole, 102e ... Rib, 103 ... 2nd installation body , 103a ... mounting portion, 103b ... connecting portion, 103c ... long hole, 104 ... mounting bolt, 105 ... connecting bolt, 106 ... floor plate column, 107 ... intermediate plate,
DESCRIPTION OF SYMBOLS 110 ... Floor board support body, 111 ... Support main body, 112 ... Connection body, 113 ... Side construction body, 114 ... Embedded body, 115 ... Elastic body, 116 ... Support body connection tool, 117 ... Base plate, 118 ... Receiving bolt, 119 ... Gap filling material.

Claims (8)

Refurbish an existing bleachers with a floorboard on the front and rear retaining walls that extend parallel to each other in a direction perpendicular to the slope of the slope, and multiple seats on the floorboard The renovation structure of the bleachers,
A erected body that is erected between the front retaining wall and the rear retaining wall in a state of floating from the ground;
A renovation structure for a bleacher seat, comprising: a floor plate support which is supported by the installation body and supports the floor plate from below. In the renovation structure of the bleacher seat according to claim 1,
A floor board support provided between the floor board column and the floor board and extending along the front retaining wall and the rear retaining wall to support the floor board;
The floor board support is
A renovation structure for a bleacher seat, which is supported by the floor plate support extending respectively from the plurality of installation bodies arranged below the floor plate support. In the refurbishment structure of the bleacher seat according to claim 2,
A renovation structure for a bleacher seat, comprising a side erection body constructed between at least one wall surface of the front retaining wall and the rear retaining wall and the floor plate support. In the refurbishment structure of the bleacher seat according to any one of claims 2 and 3,
The flooring support is
A retrofit structure for a bleacher seat, comprising an embedded body embedded in the floor board. In the renovation structure of the bleacher seat according to any one of claims 2 to 4,
A renovation structure of a bleacher seat, comprising a support body connecting tool for connecting the floor board supports adjacent to each other. In the refurbishment structure of the bleacher seat according to any one of claims 1 to 5,
The installation body is
A repair structure for a bleacher seat, wherein a length between an end portion fixed to the wall surface of the front retaining wall and an end portion fixed to the wall surface of the rear retaining wall is extendable. Renovation of an existing bleachers with a structure in which a floor board is provided on the front and rear retaining walls extending in parallel to each other along a direction perpendicular to the inclined direction of the slope, and a plurality of seats are provided on the floor board. A method,
A floor board removing step of removing the floor board provided on the front retaining wall and the rear retaining wall;
A construction body installation step of constructing a construction body in a state of floating from the ground surface between the wall surfaces of the front retaining wall and the rear retaining wall from which the floor plate has been removed;
A method for refurbishing a bleacher seat, comprising: a floorboard arrangement step of arranging the floorboard on a floor through a floorboard column. Renovation of an existing bleachers with a structure in which a floor board is provided on the front and rear retaining walls extending in parallel to each other along a direction perpendicular to the inclined direction of the slope, and a plurality of seats are provided on the floor board. Parts for repairing bleachers used in
A erected body that is erected between the front retaining wall and the rear retaining wall in a state of floating from the ground;
A bleacher seat refurbishment part, comprising: a floor column support that is supported by the installation body and supports the floor plate from below.

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