Fixture, method for replacing wall panel, method for attaching wall panel

Abstract

To provide a fixture that can easily attach a wall panel to an embankment structure in which existing supports are arranged in front of a lightweight embankment, and a method for attaching the wall panel using the fixture.SOLUTION: A fixture 1 in this embodiment is a fixture for attaching a wall panel 81 to a second flange 62 of an existing support 6, which has a first flange 61 on a back side of which a lightweight embankment 7 is provided, a second flange 62 spaced from the first flange 61 on a front side, and a web 63 connecting the first flange 61 and the second flange 62. The fixture 1 comprises a contact plate portion 2 having a protruding portion 20 that is arranged protruding laterally from the second flange 62, a holding portion 3 for holding the contact plate portion 2 on the lightweight embankment 7, and a bolt joint portion 4 that is provided on the protruding portion 20 and for sandwiching and fixing the second flange 62 between the contact plate portion 2 and the wall panel 81.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a mounting fixture for attaching a wall panel to the second flange of an existing support pillar, the second flange having a first flange on the rear side of which lightweight embankment is provided, a second flange spaced from the first flange on the front side, and a web connecting the first flange and the second flange, and a method for replacing the wall panel. [Background technology]

[0002] Conventionally, Patent Documents 1 and 2 disclose techniques relating to an embankment structure in which wall panels are provided to protect foam resin blocks.

[0003] The foamed resin block with a surface-shaped material for embankments of Patent Document 1 is a foamed resin block with a surface-shaped material for embankments, in which the outer dimensions of the foamed resin block and the surface-shaped material are set to a size that, when the foamed resin blocks with surface-shaped material for embankments are stacked, a gap is formed between at least the upper and lower surface-shaped materials to allow for compressive creep deformation of the foamed resin block, and a fixing device having a fixing portion and an anchor portion is attached to the foamed resin block with the fixing portion positioned at at least three locations, two at the top and one at the bottom, of the mounting surface, and the surface-shaped material is fixed to the fixing portion of the fixing device with a stopper, thereby attaching the surface-shaped material to the mounting surface of the foamed resin block.

[0004] The lightweight embankment structure of Patent Document 2 is a lightweight embankment structure in which resin foam blocks are stacked in multiple stages with one side surface being approximately vertical, and the rear end locking portion of a locking member is fixed between the stacked surfaces of the resin foam blocks. A receiving member is attached to the back surface of the wall material so that it can move laterally, and the front end locking portion of the locking member is slidably inserted into the vertical groove of the receiving member and locked. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-169764 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-162507 Summary of the Invention [Problem to be solved by the invention]

[0006] In recent years, wall panels protecting EPS blocks that make up lightweight embankments have been found to be failing in their protective function due to water intrusion from the road surface above the embankment, the effects of snow-melting agents, aging, and damage. Replacing wall panels using the conventional support-mounted method, which attaches them to the front of EPS blocks via supports, requires extensive removal of the wall up to the top edge in order to repair a portion of the wall panel. When repairing only the damaged area is unavoidable, partial replacement can be achieved by directly fastening the wall panel to the rear support with screws. However, it is difficult to ensure the same fastening strength and long-term durability as the mounting hardware before removal. Furthermore, screw fastening poses problems, such as the thinness of the embedded plate to which the screws are attached, which can lead to concerns about screws breaking when driven at an angle, and the difficulty of re-driving screws into cut areas.

[0007] The technology disclosed in Patent Document 1 involves drilling holes and fixing a sheet-shaped material to the fixing part of a fixing device embedded in a foam resin block using fasteners consisting of screws. To remove the sheet-shaped material from the fixing part, the threaded fixing part (drilled part) must be forcibly removed by reverse cutting, making it impossible to drill holes and fix the sheet-shaped material in the same position using screws. Therefore, it is difficult to easily attach the sheet-shaped material.

[0008] The technology disclosed in Patent Document 2 attaches a wall material to a foam resin block using a support member that allows the wall material to move laterally and vertical grooves that act as supports. For this reason, with the technology disclosed in Patent Document 2, since the wall material is removed by moving it laterally onto the support member, it is difficult to remove the wall material alone from the foam resin block, and it is difficult to easily attach the wall material.

[0009] The present invention was devised in consideration of the above-mentioned problems, and its purpose is to provide a mounting fixture that can easily mount wall panels in an embankment structure where existing supports are placed in front of a lightweight embankment, a method for replacing wall panels, and a method for mounting wall panels. [Means for solving the problem]

[0010] The mounting fixture of the present invention is a mounting fixture for attaching a wall panel to the second flange of an existing support column, which has a first flange on the back side of which lightweight embankment is provided, a second flange spaced from the first flange on the front side, and a web connecting the first flange and the second flange, and is characterized by comprising: a contact plate portion having a protruding portion that protrudes laterally from the second flange, a holding portion for holding the contact plate portion on the lightweight embankment, and a bolt joint portion that is provided on the protruding portion and for clamping and fixing the second flange between the contact plate portion and the wall panel.

[0011] The wall panel replacement method of the present invention is a wall panel replacement method that uses the mounting fixture of the present invention to replace a wall panel attached to the support pillar placed in front of the lightweight embankment, and is characterized by comprising: a removal process that removes the existing wall panel attached to the existing support pillar to expose the second flange of the support pillar; a holding process that holds the contact plate portion to the lightweight embankment with the holding portion so that the protruding portion is positioned protruding from the side of the second flange; and a fixing process that sandwiches and fixes the second flange between the contact plate portion and a new wall panel via the bolt joint provided on the protruding portion.

[0012] The wall panel installation method of the present invention is a method for installing a wall panel using the mounting fixture of the present invention to attach the wall panel to the support pillar placed in front of the lightweight embankment, and is characterized by comprising: a holding step of holding the contact plate portion to the lightweight embankment with the holding portion so that the protruding portion is positioned protruding from the side of the second flange; and a fixing step of sandwiching and fixing the second flange between the contact plate portion and a new wall panel via the bolt joint provided on the protruding portion. [Effects of the Invention]

[0013] The present invention facilitates the partial removal and replacement of support-mounted wall panels that protect the sides of lightweight embankments, such as foam resin blocks, FCB (foamed lightweight concrete), and urethane. The fixture of the present invention is equipped with a retaining portion that holds the contact plate to the lightweight embankment, allowing the fixture to be temporarily and securely held in place at any position in the back space (gap) of the wall panel to be installed. The fixture temporarily held in the back space is then joined to the wall panel by tightening bolts. This bolt tightening operation separates the fixture from the lightweight embankment and forcibly pulls it toward the wall panel, clamping the support and fastening the wall panel. In this way, when attaching a wall panel to a support, the procedure of temporarily fastening the fixture of the present invention in the back space and the procedure of fastening and fixing the wall panel to the support with the fixture of the present invention are carried out separately. Therefore, even if the back space is blocked by surrounding wall panels, the fixture of the present invention maintains a predetermined spatial position in a standby state, making it possible to attach the wall panel to the support from the outside of the wall panel and realizing replaceability (replacement, repair, and management). Therefore, according to the present invention, wall panels can be easily attached (replacement, repair, and management) in an embankment structure where supports are placed in front of a lightweight embankment. [Brief explanation of the drawings]

[0014] [Figure 1]FIG. 1 is a plan cross-sectional view showing an embankment structure using an example of a mounting fixture according to the first embodiment. [Figure 2] FIG. 2 is a side cross-sectional view showing an embankment structure using an example of the mounting fixture according to the first embodiment. [Figure 3] FIG. 3(a) is a plan cross-sectional view showing an example of the fixture in the first embodiment, and FIG. 3(b) is a side cross-sectional view showing an example of the fixture in the first embodiment. [Figure 4] Figure 4 is a diagram illustrating a method for replacing a wall panel using a mounting fixture in the first embodiment, where Figure 4(a) is a side cross-sectional view showing the state before the existing wall panel is removed, and Figure 4(b) is a side cross-sectional view showing the state after the existing wall panel has been removed. [Figure 5] Figure 5 is a diagram explaining a method for replacing a wall panel using a mounting fixture in the first embodiment, where Figure 5(a) is a plan cross-sectional view of the space retention auxiliary material when it is brought into contact with the lightweight embankment during the retention process, and Figure 5(b) is a side cross-sectional view of Figure 5(a). [Figure 6] Figure 6 is a diagram explaining a method for replacing a wall panel using a mounting fixture in the first embodiment, where Figure 6(a) is a plan cross-sectional view of the contact plate portion when held on the lightweight embankment in the holding process, and Figure 6(b) is a side cross-sectional view of Figure 6(a). [Figure 7] 7A and 7B are diagrams illustrating a method for replacing a wall panel using a mounting fixture according to the first embodiment, in which FIG. 7A is a plan cross-sectional view showing the panel before joining with a bolt joint in the fixing process, and FIG. 7B is a plan cross-sectional view showing the panel after joining with a bolt joint in the fixing process. [Figure 8] FIG. 8(a) is a plan cross-sectional view showing an example of a fixture in the second embodiment, and FIG. 8(b) is a side cross-sectional view showing an example of a fixture in the second embodiment. [Figure 9] FIG. 9(a) is a plan cross-sectional view showing an example of a fixture in the third embodiment, and FIG. 9(b) is a side cross-sectional view showing an example of a fixture in the third embodiment. [Figure 10]FIG. 10(a) is a plan cross-sectional view showing an example of a fixture in the fourth embodiment, and FIG. 10(b) is a side cross-sectional view showing an example of a fixture in the fourth embodiment. [Figure 11] FIG. 11(a) is a plan cross-sectional view showing an example of a fixture in the fifth embodiment, and FIG. 11(b) is a side cross-sectional view showing an example of a fixture in the fifth embodiment. [Figure 12] FIG. 12(a) is a plan cross-sectional view showing an example of a fixture in the sixth embodiment, and FIG. 12(b) is a side cross-sectional view showing an example of a fixture in the sixth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an example of a fixture, a method for replacing a wall panel, and a method for attaching a wall panel according to an embodiment of the present invention will be described with reference to the drawings.

[0016] First Embodiment As shown in Figures 1 and 2, the embankment structure 100 is an embankment structure in which a plurality of foam resin blocks, which are an example of lightweight embankment 7, are stacked. A superstructure such as a road is provided on the upper side of the embankment structure 100. The embankment structure 100 includes the lightweight embankment 7, supports 6, wall panels 8, mounting fixtures 1, and existing hardware 9.

[0017] The lightweight embankment 7 is formed, for example, by stacking multiple foam resin blocks for embankment. The foam resin blocks that form the lightweight embankment 7 are, for example, EPS blocks formed in a rectangular parallelepiped shape. The foam resin blocks can be made of foamed synthetic resins such as polystyrene, polyurethane, and polyvinyl chloride. The foam resin blocks are constructed by stacking multiple blocks in a staggered pattern, for example, with the blocks offset in the vertical and horizontal directions. The foam resin blocks weigh, for example, 12 kg to 30 kg per block, making them easy to carry and providing excellent workability in the construction of lightweight embankments, making them suitable for use. Note that the foam resin blocks may be constructed by stacking multiple blocks in a so-called "corner" configuration, for example, so that the sides are flush with each other. In addition to foam resin blocks, the lightweight embankment 7 may also be constructed from FCB (aerated lightweight banking), urethane, etc.

[0018] As shown in Figures 3(a) and 3(b), the support pillar 6 is an existing support pillar that constitutes the embankment structure 100. The support pillar 6 is formed in a U-shape in plan view, and has a first flange 61, a second flange 62, and a web 63 that connects the first flange 61 and the second flange 62.

[0019] The first flange 61 has the lightweight embankment 7, which constitutes the embankment structure 100, provided on its back side. The first flange 61 has a bent piece bent toward the second flange 62 at the end opposite to the end where the web 63 is provided.

[0020] The second flange 62 is spaced from the first flange 61 toward the front side. The second flange 62 has a bent piece bent toward the first flange 61 at the end opposite to the end where the web 63 is provided. The wall panel 8 is attached to the second flange 62.

[0021] As shown in Figures 1 and 2, the wall panel 8 is for protecting the lightweight embankment 7. The wall panel 8 is made of, for example, concrete. The wall panel 8 has a wall panel 81 attached to the second flange 62 of the support 6 via the mounting fixture 1, and a wall panel 84 attached to the support 6 via an existing metal fitting 9.

[0022] As shown in Figures 3(a) and 3(b), the wall panel 81 has a through hole 82 and a steel plate portion 83 provided on the back side of the through hole 82. A bolt 41 and a nut 42 of a bolt joint portion 4 of the mounting fixture 1, which will be described later, are placed in the through hole 82. The bolt 41 passes through the steel plate portion 83. The steel plate portion 83 is embedded in a main body portion made of concrete that constitutes the wall panel 8.

[0023] The wall panel 84 is a well-known wall panel used in, for example, a frame guard EPS protective wall construction method (composite EPS wall construction method).

[0024] The fixture 1 comprises a contact plate portion 2, a holding portion 3, and a bolt joint portion 4.

[0025] The contact plate portion 2 has a protruding portion 20 that protrudes laterally from the second flange 62. The contact plate portion 2 contacts the back surface of the second flange 62. The contact plate portion 2 is formed by bending a steel plate and is U-shaped in a plan view. The contact plate portion 2 has a third flange 21, a fourth flange 22, and a web 23.

[0026] The third flange 21 contacts the back surface of the second flange 62 of the support 6. The third flange 21 is disposed upright relative to the second flange 62.

[0027] The fourth flange 22 contacts the rear surface of the wall panel 81. The length from the front surface to the rear surface of the fourth flange 22 is longer than that of the third flange 21, and the front end of the fourth flange 22 contacts the wall panel 81.

[0028] The web 23 connects the third flange 21 and the fourth flange 22. A protruding portion 20 is formed in the web 23. The web 23 is spaced from the wall panel 81. The web 23 is provided with a bolt joint portion 4 and a retaining portion 3. The protruding portion 20 of the web 23 is formed with a through hole for providing a driving member 31 (described later) and a through hole for providing a bolt 41 of the bolt joint portion 4 (described later).

[0029] The holding portion 3 holds the contact plate portion 2 on the lightweight embankment 7. The holding portion 3 has a driving member 31 and a space-retaining auxiliary material 32.

[0030] The driving members 31 are, for example, nails such as five-inch nails, and are driven into the protruding portion 20 of the web 23. The driving members 31 penetrate the space-retaining auxiliary material 32, and their tips are buried in the lightweight embankment 7. The driving members 31 are provided, for example, in two locations in the protruding portion 20, spaced apart in the height direction.

[0031] The space-retaining auxiliary material 32 is made of foamed resin made of synthetic resin such as polystyrene, polyurethane, polyvinyl chloride, etc. The space-retaining auxiliary material 32 is formed in a rectangular parallelepiped shape. The space-retaining auxiliary material may also be made of wood.

[0032] The front surface of the space-retaining auxiliary material 32 is in contact with the head of the bolt 41. The lightweight embankment 7 is provided on the back surface of the space-retaining auxiliary material 32. The side surface of the space-retaining auxiliary material 32 is in contact with the bent piece of the first flange 61.

[0033] The strength of the space-retaining auxiliary material 32 is preferably set to be equal to or less than the strength of the lightweight embankment 7. This makes it easier to drive the driving members 31 into the space-retaining auxiliary material 32.

[0034] The bolted joint 4 is provided in the protruding portion 20. The bolted joint 4 sandwiches and fixes the second flange 62 between the contact plate portion 2 and the wall panel 81. The bolted joint 4 has a bolt 41 and a nut .

[0035] The bolt 41 passes through the protruding portion 20. The head of the bolt 41 is fixed to the back surface of the protruding portion 20, for example, by welding. The tip of the shank of the bolt 41 opposite the head is disposed on the front side. The shank of the bolt 41 extends further toward the front side than the second flange 62.

[0036] The nut 42 is screwed onto the shaft of the bolt 41. The nut 42 is disposed on the front side of the steel plate portion 83 of the wall panel 81. By screwing the nut 42 onto the bolt 41, the wall panel 81 is pulled toward the contact plate portion 2, and the second flange 62 can be sandwiched and fixed between the contact plate portion 2 and the wall panel 81.

[0037] The existing hardware 9 is for attaching the wall panel 84 to the second flange 62 of the support 6. The existing hardware 9 is a well-known grip metal fitting for attaching the wall panel 84 to the support 6 in, for example, the frame guard EPS protective wall construction method.

[0038] <How to replace and install wall panel 8> Next, we will explain the method for replacing the wall panel 8 using the mounting fixture 1. The method for replacing the wall panel 8 involves using the mounting fixture 1 to replace the wall panel 84 attached to the existing support 6 located in front of the lightweight embankment 7 that constitutes the embankment structure 100 with a new wall panel 81.

[0039] As shown in Fig. 4(a), in the embankment structure 100, wall panels 84 are attached to the supports 6 via existing metal fittings 9. A plurality of wall panels 84 are provided in the height direction and the width direction.

[0040] The method for replacing the wall panel 8 includes a removal step and a method for attaching the wall panel 8. The method for attaching the wall panel includes a holding step and a fixing step.

[0041] As shown in Figure 4(b), in the removal process, the existing wall panel 84 attached to the existing support column 6 of the embankment structure 100 via the existing metal fittings 9 is removed to expose the second flange 62 of the support column 6 on the front side. The area where the wall panel 84 has been removed becomes an opening surrounded by the existing wall panels 84. For this reason, when replacing the wall panel 8, work must be done from the front side of the wall panel 8.

[0042] As shown in Figures 5(a) and 5(b), in the holding process, the protruding portion 20 is positioned so as to protrude from the side of the second flange 62, and the contact plate portion 2 is held on the lightweight embankment 7 by the holding portion 3.

[0043] In detail, in the holding process, the back surface of the space-retaining auxiliary material 32 is placed in contact with the front surface of the lightweight embankment 7. Also, in the holding process, the protruding portion 20 is positioned on the front side of the space-retaining auxiliary material 32. In the holding process, the third flange 21 may be separated from the back surface of the second flange 62. The head of the bolt 41 is welded and fixed to the back surface of the protruding portion 20 in advance, and the tip of the shaft of the bolt 41 extends toward the front surface. The worker holds the contact plate portion 2 by hand while pressing it against the space-retaining auxiliary material 32.

[0044] 6(a) and 6(b), in the holding step, the driving member 31 is driven into the protruding portion 20. The driving member 31 driven into the protruding portion 20 is penetrated by the space-retaining auxiliary material 32. The tip of the driving member 31 is buried in the lightweight embankment 7. By driving the driving member 31 into the lightweight embankment 7, the contact plate portion 2 can be temporarily held in the lightweight embankment 7. In other words, even if the worker releases his or her hand from the contact plate portion 2, it will not fall off, and can be temporarily maintained in a predetermined position in the lightweight embankment 7. At this time, the shaft portion of the bolt 41 extends toward the front side.

[0045] Next, as shown in FIGS. 7(a) and 7(b), in the fixing step, the second flange 62 is sandwiched and fixed between the contact plate portion 2 and the new wall panel 81 via the bolt joint portion 4.

[0046] In detail, as shown in FIG. 7(a), in the fixing process, the bolt 41 extending from the protruding portion 20 toward the front side is passed through the steel plate portion 83 of the wall panel 81 and placed in the through hole 82. Then, as shown in FIG. 7(b), in the fixing process, the bolt 41 and the nut 42 are screwed together. By screwing the bolt 41 extending toward the front side and the nut 42 together, the contact plate portion 2 is drawn to the wall panel 81 in contact with the second flange 62, and the second flange 62 can be sandwiched and fixed between the contact plate portion 2 and the wall panel 81. As the contact plate portion 2 is drawn toward the front side, which is the wall panel 81 side, the driving member 31 driven into the lightweight embankment 7 is also drawn toward the front side.

[0047] The space-retaining auxiliary material 32 temporarily holds the contact plate portion 2 in front of the lightweight embankment 7, so that after the second flange 62 is sandwiched and fixed between the contact plate portion 2 and the wall panel 81, it may be separated from the lightweight embankment 7 or may be in contact with the lightweight embankment 7.

[0048] If wall panel 81 is placed in the location where wall panel 84 has been removed, workers will not be able to reach the space behind wall panel 81. In this regard, mounting fixture 1 according to the present invention is provided with holding portion 3 that holds contact plate portion 2 to lightweight embankment 7, so that mounting fixture 1 according to the present invention can be temporarily and firmly held in place at any position in the space behind wall panel 81 (gap) to be installed. Then, mounting fixture 1 temporarily held in the space behind wall panel 81 is joined by tightening bolts. This bolt tightening operation separates mounting fixture 1 held in the lightweight embankment 7 and forcibly pulls it toward wall panel 81, clamping support column 6 and tightening wall panel 81. In this way, when attaching wall panel 81 to support 6, the procedure of temporarily fastening fixture 1 according to the present invention in the back space and the procedure of fastening and fixing wall panel 81 to support 6 with fixture 1 according to the present invention are carried out separately. Therefore, even if the back space is blocked by surrounding wall panels 84, fixture 1 according to the present invention maintains a predetermined spatial position in a standby state, making it possible to attach wall panel 81 to support from the outside of wall panel 81 and realizing replaceability (replacement, repair, and management). Therefore, according to the present invention, wall panels can be easily attached (replacement, repair, and management) to an embankment structure in which supports are placed in front of a lightweight embankment.

[0049] According to this embodiment, the embankment structure 100 includes a contact plate 2 having a protruding portion 20 that protrudes laterally from the second flange 62, a retaining portion 3 for holding the contact plate 2 to the lightweight embankment 7, and a bolt joint 4 provided on the protruding portion 20 for sandwiching and fixing the second flange 62 between the contact plate 2 and the wall panel 81. This allows the contact plate 2 to be temporarily held to the lightweight embankment 7 by the retaining portion 3. With the contact plate 2 temporarily held in place, the bolt joint 4 pulls the contact plate 2 toward the wall panel 81, thereby sandwiching and fixing the second flange 62 between the contact plate 2 and the wall panel 81. This allows the wall panel 81 to be attached from the front side. This allows the wall panel 8 to be easily attached to an embankment structure 100 in which existing supports 6 are placed in front of the lightweight embankment 7.

[0050] According to this embodiment, the second flange 62 can be sandwiched and fixed between the contact plate portion 2 and the wall panel 81. This eliminates the need to drill holes in the existing support columns 6. This makes it easy to attach the wall panels 8 to the embankment structure 100. Furthermore, since it is no longer necessary to drill holes or tap the existing support columns 6, damage to the existing support columns 6 can be prevented.

[0051] According to this embodiment, the holding portion 3 has driving members 31 for driving into the lightweight embankment 7. This makes it easy to temporarily hold the contact plate portion 2 to the lightweight embankment 7.

[0052] According to this embodiment, the holding portion 3 further has a space-retaining auxiliary material 32 through which the driving member 31 passes. This allows the contact plate portion 2 to be held in a position closer to the front than the lightweight embankment 7. This makes it possible to temporarily hold the contact plate portion 2 in the lightweight embankment 7 more stably. Furthermore, the protruding portion 20, which serves as the driving surface of the driving member 31, can be positioned on the front side by the length of the space-retaining auxiliary material 32 in the front-to-rear direction, making it easier to drive the driving member 31.

[0053] According to this embodiment, the holding portion 3 further has a space-retaining auxiliary member 32 through which the driving member 31 passes. This maintains the space against pressure from the front side when attaching the wall panel 81. This prevents the mounting fixture 1 from falling off or being dislocated by being pressed against the rear side.

[0054] According to this embodiment, the driving member 31 penetrates the contact plate portion 2. This makes it even easier to temporarily hold the contact plate portion 2 to the lightweight embankment 7.

[0055] According to this embodiment, the tip of the shank of the bolt 41, opposite to the head of the bolt 41, is disposed on the front side. Since the tip of the shank of the bolt 41 is disposed on the front side, it becomes easy to screw the nut 42 onto the bolt 41.

[0056] Second Embodiment Next, a description will be given of a fixture 1 in a second embodiment. Detailed description of the same configuration as in the above-described embodiment will be omitted below.

[0057] As shown in Figures 8(a) and 8(b), the contact plate portion 2 contacts the back surface of the second flange 62 of the support column 6 made of H-shaped steel. The steel plate portion 83 is omitted from the wall panel 81. The nut 42 of the bolt joint portion 4 is formed with a larger diameter than the through hole 82 and is positioned on the front surface of the wall panel 81.

[0058] Third Embodiment Next, a mounting fixture 1 according to a third embodiment will be described.

[0059] As shown in Figures 9(a) and 9(b), the bolt 41 passes through the protruding portion 20. The head of the bolt 41 is disposed in front of the wall panel 81. The head of the bolt 41 is formed to have a larger diameter than the through-hole 82. The tip of the shaft of the bolt 41 opposite the head of the bolt 41 is embedded in the space-retaining auxiliary material 32.

[0060] The nut 42 is screwed onto the shaft of the bolt 41. The nut 42 is welded and fixed to the back surface of the protruding portion 20. By screwing the nut 42 onto the bolt 41, the contact plate portion 2 is drawn to the wall panel 81 that is in contact with the second flange 62, and the second flange 62 can be sandwiched and fixed between the contact plate portion 2 and the wall panel 81.

[0061] In the illustrated embodiment, when the nut 42 and the bolt 41 are screwed together, the tip of the bolt 41 is embedded in, for example, the space-retaining auxiliary material 32, but in the present invention, the tip of the bolt 41 does not have to be embedded in the space-retaining auxiliary material 32.

[0062] <Fourth embodiment> Next, a mounting fixture 1 according to a fourth embodiment will be described.

[0063] As shown in Figures 10(a) and 10(b), the portion of the contact plate portion 2 that contacts the second flange 62 is formed parallel to the second flange 62. The protruding portion 20 is formed in a U-shape in plan view. The front of the protruding portion 20 contacts the wall panel 81. The front of the protruding portion 20 is positioned flush with the second flange 62. The head of the bolt 41 is positioned on the back side of the inner U-shape of the protruding portion 20.

[0064] The bolt 41 passes through the protruding portion 20. The head of the bolt 41 is fixed to the back surface of the protruding portion 20, for example, by welding. The tip of the shank of the bolt 41 opposite the head is disposed on the front side. The shank of the bolt 41 extends further toward the front side than the second flange 62.

[0065] The nut 42 is screwed onto the shaft of the bolt 41. The nut 42 is formed with a diameter larger than the through-hole 82 and is disposed in front of the wall panel 81. By screwing the nut 42 onto the bolt 41, the contact plate portion 2 is drawn to the wall panel 81 in contact with the second flange 62, and the second flange 62 can be sandwiched and fixed between the contact plate portion 2 and the wall panel 81.

[0066] Fifth Embodiment Next, a mounting fixture 1 according to a fifth embodiment will be described.

[0067] As shown in Figures 11(a) and 11(b), the portion of the contact plate portion 2 that contacts the second flange 62 is formed parallel to the second flange 62. The protruding portion 20 is formed in a U-shape in plan view. The front of the protruding portion 20 contacts the wall panel 81. The front of the protruding portion 20 is disposed flush with the second flange 62. A nut 42 is disposed on the back side of the inside U-shape of the protruding portion 20.

[0068] The bolt 41 passes through the protruding portion 20. The head of the bolt 41 is disposed in front of the wall panel 81. The head of the bolt 41 is formed to have a diameter larger than that of the through-hole 82. The tip of the shaft of the bolt 41 opposite the head of the bolt 41 is embedded in the space-retaining auxiliary material 32.

[0069] The nut 42 is screwed onto the shaft of the bolt 41. The nut 42 is welded and fixed to the back surface of the protruding portion 20. By screwing the nut 42 onto the bolt 41, the contact plate portion 2 is drawn to the wall panel 81 that is in contact with the second flange 62, and the second flange 62 can be sandwiched and fixed between the contact plate portion 2 and the wall panel 81.

[0070] In the illustrated embodiment, when the nut 42 and the bolt 41 are screwed together, the tip of the bolt 41 is embedded in, for example, the space-retaining auxiliary material 32, but in the present invention, the tip of the bolt 41 does not have to be embedded in the space-retaining auxiliary material 32.

[0071] Sixth Embodiment Next, a mounting fixture 1 according to a sixth embodiment will be described.

[0072] As shown in Figures 12(a) and 12(b), the mounting fixture 1 can mount a wall panel 81 made of stone to an existing support 6. The through-hole 82 in the wall panel 81 has a large-diameter portion 82a on the front side and a small-diameter portion 82b on the back side that is smaller in diameter than the large-diameter portion 82a. A nut 42 is placed in the large-diameter portion 82a. The shank of the bolt 41 is placed in the small-diameter portion 82b.

[0073] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0074] 1: Mounting bracket 2: Contact plate part 20: Exit section 21: Third flange 22: 4th flange 23: Web 3: Holding part 31: Drive-in member 32: Space retention aid 4: Bolted joint 41: Bolt 42: Nut 6: Strut 61: First flange 62: Second flange 63: Web 7: Lightweight embankment 8: Wall panel 81: Wall panel 82: Through hole 82a: Large diameter section 82b: Small diameter 83: Steel plate part 84: Wall panel 9: Existing hardware 100: Embankment structure

Claims

1. A mounting fixture for mounting a wall panel to the second flange of an existing support column, the second flange having a first flange on the rear side of which lightweight embankment is provided, a second flange spaced from the first flange on the front side, and a web connecting the first flange and the second flange, a contact plate portion having a protruding portion disposed protruding laterally from the second flange; a holding portion for holding the contact plate portion on the lightweight embankment; a bolt joint portion provided on the protruding portion for sandwiching and fixing the second flange between the contact plate portion and the wall panel. A mounting fixture characterized by:

2. The holding portion has a driving member for driving into the lightweight embankment.

2. The fixture of claim 1.

3. The holding portion further includes a space-retaining auxiliary material through which the driving member is passed.

3. The fixture of claim 2.

4. The bolt joint includes a bolt and a nut threaded onto the bolt, The bolt has a head and a tip of a shaft opposite the head of the bolt arranged on the front side.

2. The fixture of claim 1.

5. A method for replacing a wall panel attached to an existing support column placed in front of the lightweight embankment using the mounting fixture according to claim 1, comprising: a removal process of removing an existing wall panel attached to the existing support pole to expose the second flange of the support pole; a holding step of holding the contact plate portion against the lightweight embankment by the holding portion so that the protruding portion is positioned protruding from a side of the second flange; and a fixing step of sandwiching and fixing the second flange between the contact plate portion and a new wall panel via the bolt joint portion provided in the protruding portion. A method for replacing a wall panel.

6. A method for attaching a wall panel to an existing support column placed in front of the lightweight embankment using the mounting fixture according to claim 1, a holding step of holding the contact plate portion against the lightweight embankment by the holding portion so that the protruding portion is positioned protruding from a side of the second flange; and a fixing step of sandwiching and fixing the second flange between the contact plate portion and a new wall panel via the bolt joint portion provided in the protruding portion. A method for mounting a wall panel.

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