JP2009108530A - Panel material connecting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a panel material connecting structure which enables panel materials to be connected together in a cutoff state while following displacement, even if the turning and horizontal displacement occur in the panel materials by the time a step of placing concrete on the panel materials after the erection of the plurality of panel materials is completed. <P>SOLUTION: A recess 10a of an impermeable sheet 10 is installed in the state of protruding with respect to an undersurface of the panel material 4, in a joint, in which ends of the panel materials 4 facing each other inno support state of the lower part but in the abutting state against each other, among joints of the panel materials 4 constituting an elevated floor slab. When mounting portions 10b and 10b at both ends are bonded and fixed to the end of the panel material 4 with an adhesive 11, the recess 10a allows the displacement on the occurrence of the turning displacement and the horizontal displacement in the panel material 4, and the impermeable sheet 10 covers the joint while following the displacement. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a panel material connection structure, and more particularly, between the installation of a plurality of panel materials constituting an elevated floor slab and the completion of the step of placing concrete on the panel material. Panels that constitute an elevated floor slab that can be connected by stopping the panel material and the panel material, or the panel material and the fixed member by following the deviation, even when a rotational deviation or horizontal deviation occurs in The present invention relates to a material connection structure.

  Reinforced concrete reinforced concrete slabs erected on water columns such as piers or beams installed between columns deteriorate due to the influence of seawater, etc., and need to be repaired when the deterioration has progressed to some extent. . Similarly, reinforced concrete elevated slabs erected on land such as road bridges need to be repaired at the stage of deterioration.

  Elevated floor slabs such as those described above are constructed by installing multiple panels on the columns to be erected or between the columns, and then building reinforcing bars on these panels and placing concrete on them. Is done. Conventionally, the joint between adjacent panel members that have been installed and the joint between the panel member and the beam (fixed member) and the panel member are filled with non-shrink mortar to integrate them together. (For example, refer to Patent Document 1).

From the time when the panel material constituting the elevated floor slab is erected in this way until the process of placing concrete on the panel material is completed, the panel material has a horizontal displacement or panel material. A so-called rotational deviation caused by bending occurs. Since the hardened non-shrink mortar cannot be deformed so as to follow the horizontal displacement or rotational displacement of the panel material, damage such as cracks occurs when the panel material is largely displaced. Therefore, in the panel material connection structure in which the joint is only filled with non-shrink mortar as in the prior art, there is a problem that it is difficult to reliably stop the joint. The same problem is not only when repairing elevated slabs, but also newly constructing reinforced concrete elevated slabs erected on water such as piers or beams installed between columns. It also occurred when you did.
JP-A-10-131125

  The object of the present invention is also in the case where a rotational deviation or a horizontal deviation occurs in a panel material between the time when a plurality of panel materials are installed and the step of placing concrete on the panel material is completed. Another object of the present invention is to provide a panel material connection structure that constitutes an elevated floor slab in which the panel material and the panel material, or the panel material and the fixed member can be connected by following the displacement.

  In order to achieve the above object, the connection structure of the panel material of the present invention has an opening from above the opening formed by cutting out the repair target area of the reinforced concrete reinforced concrete slab installed on the columns or beams provided between the columns. A plurality of panel members are installed on pillow beams suspended at intervals in the horizontal direction at the lower position of the section so as to cover the opening, and then a new reinforcing bar is arranged in the opening to place the concrete. When repairing an elevated floor slab by closing the opening with reinforced concrete integrated with the panel material by placing it, the lower part of the joints between the panel materials installed adjacent to the pillow beam is unsupported In the state, the connection structure of the panel material at the joint where the facing panel material end portions are abutted, and having a recess protruding downward in the cross section, and having a mounting portion at both ends of the recess The water-based sheet is installed in the seam where the opposite ends of the panel material are abutted against each other with the lower portion in an unsupported state, with the recess protruding downward from the lower surface of the panel material, It is characterized in that it is bonded and fixed to the opposite end of the panel material with an adhesive.

  In addition, when the elevated floor slab is repaired as described above, the connection structure of another panel material according to the present invention is a panel member installed on the pillow beam and a fixed member of the elevated floor slab adjacent to the panel material. The panel material connection structure at the joint between the panel member end and the fixed member that are in contact with each other in the unsupported state, and having a recess protruding downward in cross section, A non-permeable sheet having a mounting portion at one end of the recess, with the lower portion in an unsupported state, at the joint between the panel member end and the fixed member, the recess protrudes below the lower surface of the panel material. The mounting portion at one end is bonded and fixed to the end portion of the panel material with an adhesive, and the outer peripheral portion of the concave portion on the other end side is bonded and fixed to the fixed member with an adhesive.

  In addition, when repairing an elevated floor slab as described above, the connection structure of another panel material of the present invention is the lower part of the joint between the panel members installed adjacent to the pillow beam by the pillow beam. In the supported state, the panel material connection structure at the joint where the opposite panel material ends are abutted with each other, and the panel material edge is supported downward from the upper surface of each of the opposed panel material ends. A non-permeable sheet is installed along the seam in the cross-sectional direction up to the upper surface of the pillow beam, and the non-permeable sheet is bonded to the end of the panel material and the pillow beam with an elastic adhesive resin. To do.

  In another panel material connection structure of the present invention, a plurality of panel materials are installed on a pillar beam suspended at a horizontal interval from above the columns provided between the columns or the columns. After covering between the beams provided between the columns, reinforcing bars are placed in the upper position of the installed panel material, and the concrete is placed. When constructing a new elevated floor slab by closing the gap between the beams provided in the panel, the opposite ends of the panel material with the lower part unsupported among the joints of the panel materials installed adjacent to the pillow beam A panel material connection structure at a joint where the portions are butted together, and having a recess protruding downward in cross section and having a mounting portion at both ends of the recess, the lower portion is in an unsupported state And At the joint where the panel material ends are abutted, the concave part protrudes downward from the lower surface of the panel material, and the attachment parts at both ends are bonded and fixed to the opposite panel material ends with an adhesive. It is characterized by this.

  Further, the connection structure of another panel material according to the present invention, when a newly constructed elevated floor slab as described above, is unsupported below the joint between the panel materials installed adjacent to the pillow beam. In the state, the panel material connection structure at the joint between the panel member end and the fixed member that are abutted, and having a recess protruding downward in cross section and having a mounting portion at one end of the recess The non-supporting sheet is installed at the joint between the panel member end and the fixed member, with the concave portion protruding downward from the lower surface of the panel material, and the mounting portion at one end is The panel member is bonded and fixed to the end portion of the panel material with an adhesive, and the outer peripheral portion of the concave portion on the other end side is bonded and fixed to the fixed member with the adhesive.

  Further, in the connection structure of another panel material of the present invention, when a newly constructed elevated floor slab is newly constructed as described above, the lower part of the joint between the panel materials installed adjacent to the pillow beam is the pillow. A panel material connection structure at a joint where the opposite panel material ends are abutted with each other while being supported by a beam, and the panel material edge is lowered from the upper surface of each of the opposed panel material ends. The non-permeable sheet is installed along the seam in the cross-sectional direction up to the upper surface of the pillow beam supported by, and the non-permeable sheet, the panel material end and the pillow beam are bonded and fixed by an elastic adhesive resin. It is a feature.

  According to the connection structure of the panel material of the present invention, when repairing or newly constructing the elevated floor slab, among the joints of the panel material constituting the elevated floor slab, the lower ends of the panel material facing each other in an unsupported state A non-permeable sheet having a recess protruding downward in cross section is bonded and fixed with an adhesive to the joint between the end of the panel member and the fixed member in the unsupported state, or the joint between the bottom and the fixed member The panel material is connected, so if the panel material is rotated or horizontally displaced between the time the panel material is installed and the concrete is placed on the panel material In addition, since the concave portion protruding downward from the lower surface of the panel material is deformed, the water-impermeable sheet at the joint can follow the shift.

  In addition, the panel material is connected to the seam where the opposite ends of the panel material are abutted with each other while being supported by pillow beams, and the non-permeable sheet is bonded and fixed with an elastic adhesive resin. When the panel material is rotated or horizontally displaced after the installation of the concrete on the panel material until the completion of the process of placing the concrete on the panel material, the seam is caused by the elastic deformation of the elastic adhesive resin. This water-impermeable sheet can follow the deviation.

  In this way, since the seam is blocked by the water-impermeable sheet that can follow the seam shift, it is possible to stop the seam and connect the panel material after placing concrete on the panel material. Become.

  Hereinafter, the connection structure of the panel material which comprises the elevated floor slab of this invention is demonstrated based on embodiment shown in the figure.

  In the present invention, as shown in FIG. 11 and FIG. 12, the reinforced concrete elevated floor slab 1 is installed on the column 3 standing on the water such as a pier or the beam 3 a provided between the columns 3. Elevated floor slab 1 made of reinforced concrete is the target. First, when such an elevated floor slab 1 is repaired due to deterioration, the repair target area is cut from above by a cutter device or the like, and the cut reinforced concrete body 1a is lifted by a crane or the like, Remove to the place. Thereby, the opening 1b is formed in the repair target area of the elevated floor slab 1.

  Next, as illustrated in FIGS. 13 and 14, the pillow beam 6 is moved below the opening 1 b by the suspension anchor 7 connected to the upper support material 5 installed on the H steels 8 and 8 on the opposite beams 3 a and 3 a. Hanging at the position. On this suspended pillow beam 6, a scaffold inserted from above the opening 1b is arranged, and a worker on the scaffold performs a concrete lifting operation on the peripheral edge of the opening 1b. As a result of the lifting operation, a large number of reinforcing bars 2 embedded in the elevated floor slab 1 are projected from the peripheral edge of the opening 1b toward the inner periphery.

  In place of the concrete lifting work, the roughening work of the concrete at the peripheral edge of the opening 1b is performed, and then a new reinforcing bar is embedded in the peripheral edge of the opening with a chemical anchor or the like, and a large number of reinforcing bars 2 are opened into the opening 1b. You may make it the state protruded to the inner peripheral side from the opening peripheral part. The roughing operation is for improving the bondability with concrete 9 to be newly placed, which will be described later.

  Next, as illustrated in FIGS. 1 and 2, the upper support material 5 in which the pillow beam 6 is suspended by the suspension anchor 7 is horizontally moved on the H steel 8, thereby the pillow beam 6 is Move to horizontal position. Further, the pillow beam 6 moved to a predetermined horizontal position is moved to a predetermined vertical position at a position below the protruding reinforcing bar 2 by adjusting the length of the suspension anchor 7.

  Next, the panel material 4 is inserted from above the opening 1 b and installed on the pillow beam 6. This panel material 4 is arrange | positioned between the reinforcing bar 2 and the pillow beam 6 which protruded to the inner peripheral side from the opening peripheral part of the opening part 1b in the up-down direction. In this way, the plurality of panel members 4 are arranged side by side on the pillow beam 6 so as to cover the opening 1b with the panel member 4 in the horizontal direction.

  In FIG. 1, the upper support material 5 and the H steel 8 are not shown in order to clarify the installation state of the panel material 4.

  In the present invention, the panel material 4 is preferably a lightweight and high-strength material such as a prestressed concrete panel material (PC panel material) in which a PC steel wire is embedded. In addition, for example, steel, vinylon, polypropylene, and aramid are used for cement. A fiber-reinforced panel material or a fiber-reinforced PC panel material formed by blending fibers such as these can be used. The steel fibers blended in the fiber reinforced panel material and the fiber reinforced PC panel material have, for example, an outer diameter of about 0.1 to 0.2 mm and a length of about 10 mm to 30 mm.

  Moreover, the panel material 4 can also be formed with the high-strength fiber reinforced mortar which mix | blended said various fiber and used the silica fume cement. When the panel material 4 formed of this high-strength fiber reinforced mortar is used, the water-cement ratio is small, so that salt resistance is improved, and accordingly, so-called fogging can be reduced.

  As illustrated in FIGS. 1 and 2, the plurality of panel members 4 installed on the pillow beam 6 are arranged with a predetermined interval between the adjacent panel members 4 and between the adjacent beams 3 a.

  Among the joints between the panel members 4 installed adjacent to the pillow beam 6, there is no pillow beam 6 below, and the joints where the opposite end portions of the panel member 4 are butted together are shown in FIG. As illustrated in FIG. 5, a water-impermeable sheet 10 having a recess 10 a protruding downward in a cross section and having attachment portions 10 b at both ends of the recess 10 a is installed. The recess 10 a protrudes downward from the lower surface of the panel material 4. In the embodiment, the shape of the concave portion 10a is an arc shape, but various shapes such as a triangular cross section and a quadrangular cross section that protrude downward from the lower surface of the panel material 4 can be employed.

  The planar mounting portions 10b and 10b are bonded and fixed to the opposing panel members 4 and 4 with adhesive 11 respectively. It is preferable that the outer peripheral portions 10c and 10c at both ends of the concave portion 10a are also bonded and fixed to the respective panel material 4 and 4 end portions by the adhesive 11.

  As the water-impermeable sheet 10, a metal sheet, a non-metal sheet such as a resin can be used. Examples of the metal sheet include a titanium sheet, a stainless steel sheet, and an aluminum alloy sheet. Examples of the nonmetal sheet include a vinyl chloride sheet, a rubber sheet, a polycarbonate sheet, and other various resin sheets.

  As the adhesive 11, an inorganic adhesive, for example, a cement-based material can be used, but an organic resin having a water shielding property is preferable, and an epoxy resin, a urethane resin, an acrylic resin, a vinyl ester resin, a polyester resin, and the like are used. It can be illustrated. In particular, when it is necessary to impart elasticity, an elastic adhesive resin 11a such as an elastic epoxy resin, an elastic urethane resin, or a polyurea resin is used.

  Although details will be described later, after attaching the water-impermeable sheet 10 to the seam as described above, a new concrete 9 is placed on the panel material 4 laid on the pillow beam 6 as illustrated in FIG. To do. As described above, the panel material 4 is illustrated in FIG. 4 until the process of placing the concrete on the panel material 4 is completed after the plurality of panel materials 4 are installed on the pillow beam 6. In some cases, rotational deviation or horizontal deviation may occur. In particular, when placing new concrete 9 on the panel material 4, the panel material 4 is likely to be displaced.

  When such a displacement movement occurs, according to the present invention, the recess 10a of the water-impermeable sheet 10 functions as a deformation allowance to allow the displacement. Even when the panel material 4 is displaced as described above, the seam is blocked by the water-impermeable sheet 10, so that the concrete 9 is placed on the panel material 4 as illustrated in FIG. It becomes possible to stop the joint and connect the panel material 4.

  As illustrated in FIG. 6, the lower portion of the joint between the panel member 4 installed on the pillow beam 6 and the fixed member (the beam 3 a or the like) of the elevated floor slab 1 adjacent to the panel member 4 is not supported. In the state, the joint of the panel member 4 and the fixed member that are abutted with each other has a recess 10a that protrudes downward in cross section, and a mounting portion 10b at one end of the recess 10a. 10 is installed. The recess 10 a protrudes downward from the lower surface of the panel material 4. In the embodiment, the shape of the concave portion 10a is an arc shape, but various shapes such as a triangular cross section and a quadrangular cross section that protrude downward from the lower surface of the panel material 4 can be employed.

  The flat mounting portion 10b is bonded and fixed to the end portion of the panel material 4 with an adhesive 11, and the outer peripheral portion 10c of the concave portion 10a on the other end side opposite to the mounting portion 10b is fixed by the adhesive 11 as a fixed member. It is fixed to a certain beam 3a.

  Even in this connection structure, when the panel member 4 is displaced due to rotational displacement or horizontal displacement as described above, the recess 10a of the water-impermeable sheet 10 allows displacement. Therefore, even after placing concrete on the panel material 4, the water-impermeable sheet 10 can stop the seam and connect the panel material 4.

  In the connection structure illustrated in FIGS. 3 and 6, if the elastic adhesive resin 11 a is used as the adhesive 11, the elastic adhesive resin 11 a is elastically deformed, so that the water-impermeable sheet 10 installed at the seam is further increased. It becomes easier to follow the deviation.

  As illustrated in FIG. 7, of the joints between the panel members 4 installed adjacent to the pillow beam 6, the opposite ends of the panel member 4 are butted together while the lower portion is supported by the pillow beam 6. The non-permeable sheet is formed along the seam in the cross-sectional direction from the upper surface of each end of the facing panel member 4 to the upper surface of the pillow beam 6 that supports the lower end of the panel member 4 below. 10 and 10 are installed. The respective water-impermeable sheets 10 and 10 are bonded and fixed to the end portions of the respective panel members 4 and the pillow beams 6 by the elastic adhesive resin 11a.

  Such a seam where the lower part is supported by a fixed member such as the pillow beam 6 is displaced by a shift of the panel material 4 as compared to the seam which is not supported below as illustrated in FIGS. 3 and 6. However, between the time when the panel material 4 is installed on the pillow beam 6 and the process of placing the concrete 9 on the panel material 4 is completed, A rotational deviation or a horizontal deviation occurs. When the panel material 4 is displaced, the elastic adhesive resin 11a is elastically deformed so that the water-impermeable sheet 10 installed at the seam can follow the displacement. Even after laying, the water-impermeable sheet 10 can stop the seam and connect the panel material 4.

  After a plurality of panel members 4 are installed on the pillow beam 6 and the joints between the panel members 4 and the joints between the panel member 4 and the fixing members (beams 3a and pillow beams 6) are connected as described above, A new reinforcing bar is connected to the reinforcing bar 2 protruding from the section, and the reinforcing bars are arranged in a lattice pattern.

  Next, a new concrete 9 is placed in the opening 1b that is arranged in a lattice pattern by a new reinforcing bar. As a result, the new concrete 9 and the reinforcing bars arranged in a lattice form are integrated into a reinforced concrete, and the opening 1b is closed together with the panel material 4.

  At the joint between the panel members 4, new concrete 9 is filled in the recess 10 a of the water-impermeable sheet 10 and solidified as illustrated in FIG. 5. The lower part illustrated in FIG. 6 is in a non-supported state, and the panel member 4 and the beam 3a are in contact with each other. The lower part in FIG. At the joint, new concrete 9 is similarly filled and solidified.

  Each of the joints illustrated in FIGS. 3, 6, and 7 is filled with non-shrink mortar from above the water-impermeable sheet 10 bonded and fixed as necessary, and then, new concrete 9 is put on the panel material 4. You may make it place on.

  As illustrated in FIG. 8, one end in the width direction of the water-impermeable sheet 10 can be bonded and fixed to the panel material 4 with an adhesive 11 (elastic adhesive resin 11a) in advance. Thus, when the panel material 4 and the water-impermeable sheet 10 are integrated, after the panel material 4 is installed on the pillow beam 6, the other end in the width direction of the water-impermeable sheet 10 is bonded to the adhesive 11 ( With the elastic adhesive resin 11a), the connection construction of the seam can be completed quickly only by adhering and fixing to the adjacent panel member 4 and the fixed member.

  The panel material 4 used as a part of the new concrete 9 formwork becomes a part of the main body of the elevated floor slab 1 after repair. Moreover, the pillow beam 6 used as a work material when arranging the scaffold and the panel material 4 also becomes a part of the main body of the elevated floor slab 1 after repair.

  Next, the suspension anchor 7 is pulled out from the new concrete 9 that has been placed, and the upper support material 5 and the H steel 8 are removed. By pulling out the suspension anchor 7, a hole generated in the new concrete 9 is filled with a grout material and buried. In this manner, the repair target area of the deteriorated elevated floor slab 1 is repaired as illustrated in FIGS.

  Since the water-impermeable sheet 10 is bonded and fixed by the adhesive 11 (elastic adhesive resin 11a) so as to close the respective joints, after the concrete 9 is cast, the cast concrete 9 is solidified. It maintains a clear connection and exhibits a water stop effect.

  In the case of an elevated floor slab such as a jetty that requires salt barrier properties for a long period of time, it is preferable to use a titanium sheet or a stainless steel sheet as the water-impermeable sheet 10 that does not easily deteriorate. Further, as the adhesive 11 in this case, the water-stopping and salt-blocking properties can be further improved by using an organic resin such as an epoxy resin, a urethane resin, and an acrylic resin excellent in water-blocking property.

  The present invention is not limited to the pillar 3 standing on the water such as a pier or the elevated floor slab 1 installed on the beam provided between the pillars 3, but also the pillar 3 standing on the land such as a road bridge or a railway bridge. Or it can apply also when repairing the elevated floor slab 1 constructed by the beam provided between the support | pillars 3.

  In the above embodiment, the case where the existing elevated floor slab 1 is repaired has been described as an example. However, the panel material connection structure of the present invention can also be applied when newly installing the elevated floor slab 1.

  When applied to the newly installed elevated floor slab 1, the pillow beam suspended from the column 3 or the beam 3 a provided between the columns 3 with a space in the horizontal direction in the same manner as illustrated in FIGS. 1 and 2. A plurality of panel members 4 are laid on 6 to cover the columns 3 or the space between the beams 3 a provided between the columns 3 (openings). As in the illustration of FIGS. 1 and 2, the plurality of panel members 4 installed on the pillow beam 6 are arranged with a predetermined interval between the adjacent panel members 4 and between the adjacent beams 3 a.

  Among the joints between the panel members 4 installed adjacent to the pillow beam 6, there is no pillow beam 6 below, and the joints of the opposite ends of the panel member 4 are abutted in an unsupported state (A in FIG. 1). -A cross section) has the same structure illustrated in FIG. 3 using the water-impermeable sheet 10 and the adhesive 11. Of the joints between the panel material 4 installed on the pillow beam 6 and the fixed member (the beam 3a, etc.) of the elevated floor slab 1 adjacent to the panel material 4, the lower panel is abutted in an unsupported state. The joint between the four end portions and the fixing member (BB cross section in FIG. 1) has the same structure illustrated in FIG. 6 using the water-impermeable sheet 10 and the adhesive 11. Of the joints between the panel members 4 installed adjacent to the pillow beam 6, the joints that face each other at the ends of the opposing panel members 4 while being supported by the pillow beam 6 (C in FIG. 1). -C cross-sectional part) is made into the same structure illustrated in FIG. 7 using the water-impermeable sheet 10 and the elastic adhesive resin 11a.

  Next, the reinforcing bars 2 are arranged in a lattice shape above the panel material 4 installed on the pillow beam 6, and then the concrete 9 is placed. As a result, the new concrete 9 and the reinforcing bars 2 arranged in a lattice form are integrated into a reinforced concrete, and the panel material 4 and the beam 3a provided in the column 3 (opening) are closed together. 9. The elevated floor slab 1 as illustrated in FIG. 10 is newly constructed. The effect of the connection structure of the panel material 4 at each joint is the same as in the previous embodiment.

It is a top view which illustrates the connection structure of the panel material of this invention. It is a side view of FIG. It is AA sectional drawing of FIG. It is AA sectional drawing which illustrates the state which the water-impermeable sheet of FIG. 1 has deform | transformed. It is AA sectional drawing after pouring concrete. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is a top view which illustrates the panel material which attached the water-impermeable sheet beforehand. It is a top view which illustrates the elevated floor slab constructed | assembled using the connection structure of the panel material of this invention. FIG. 10 is a side view of FIG. 9. It is a top view explaining the procedure at the time of repairing the existing elevated floor slab and using the connection structure of the panel material of this invention. It is a side view of FIG. FIG. 12 is a plan view for explaining the next procedure of FIG. 11. FIG. 14 is a side view of FIG. 13.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor slab 1a Reinforced concrete body 1b Opening part 2 Reinforcing bar 3 Column 3a Beam 4 Panel material 5 Upper support material 6 Pillow beam 7 Suspension anchor 8 H steel 9 New concrete 10 Water-impermeable sheet 10a Recess 10b Mounting part 10c Outer part 11 Adhesion Agent 11a Elastic adhesive resin

Claims (11)

  From the upper part of the opening formed by cutting out the repair target area of the reinforced concrete elevated slab erected on the pillars or the beams provided between the pillars, suspended from the upper part of the opening to the lower part of the opening with a horizontal interval After laying a plurality of panel materials on the pillow beam so as to cover the opening, a new reinforcing bar is placed in the opening and the concrete is placed to open the opening with the reinforced concrete integrated with the panel material. When repairing an elevated floor slab by closing the wall, among the joints between the panel members installed adjacent to the pillow beams, the lower part is unsupported, and the joints that face the opposite panel member ends are joined together. The panel member connection structure according to claim 1, wherein a non-permeable sheet having a recess projecting downward in a cross section and having mounting portions at both ends of the recess is opposed to the panel facing the bottom in an unsupported state. Panel material in which the concave portion protrudes below the lower surface of the panel material and is installed at the seam where the material edge parts are abutted, and the attachment parts at both ends are bonded and fixed to the opposing panel material edge parts with an adhesive. Connection structure.   From the upper part of the opening formed by cutting out the repair target area of the reinforced concrete elevated slab erected on the pillars or the beams provided between the pillars, it was suspended from the upper part of the opening to the lower part of the opening with a horizontal interval. After laying a plurality of panel materials on the pillow beam so as to cover the opening, a new reinforcing bar is placed in the opening and the concrete is placed to open the opening with the reinforced concrete integrated with the panel material. When repairing the elevated floor slab by closing the floor, the bottom of the joint between the panel material installed on the pillow beam and the fixed member of the elevated floor slab adjacent to the panel material is abutted without being supported. A panel material connection structure at the joint between the panel material end and the fixed member, having a recess protruding downward in cross section, and a non-permeable sheet having a mounting portion at one end of the recess, The lower part In the support state, the recessed portion protrudes downward from the lower surface of the panel material at the joint between the panel material end and the fixed member that are abutted, and the mounting portion at one end is attached to the panel material end by an adhesive. A panel material connection structure in which the outer peripheral portion of the concave portion on the other end side is bonded and fixed to a fixed member with an adhesive.   From the upper part of the opening formed by cutting out the repair target area of the reinforced concrete elevated slab erected on the pillars or the beams provided between the pillars, suspended from the upper part of the opening to the lower part of the opening with a horizontal interval After laying a plurality of panel materials on the pillow beam so as to cover the opening, a new reinforcing bar is placed in the opening and the concrete is placed to open the opening with the reinforced concrete integrated with the panel material. When the elevated floor slab is repaired by covering the bottom of the joints between the panel members installed adjacent to the pillow beams, the opposite ends of the panel members are supported by the pillow beams. A panel member connection structure at a joint seam that is abutted to each other, in a cross-sectional direction from the upper surface of each of the opposing panel material end portions to the upper surface of the pillow beam that supports the panel material end portion below. Water-impermeable sheet and an installation, non-water permeable sheet and the connection configuration of the bonding fixed panels panel member end and the body bolster by an elastic adhesive resin along.   After laying a plurality of panel materials on pillow beams suspended horizontally from above the columns provided between the columns or between the columns to cover between the columns provided between the columns or the columns The rebar is placed in the upper position of the installed panel material, and the concrete is placed, so that the reinforced concrete integrated with the panel material is used to close the space between the columns or the columns provided between the columns. In the construction of the panel material, the connection structure of the panel material at the seam between the panel materials laid next to the pillow beam in an unsupported state and the opposite panel material ends are butted together The non-permeable sheet having a recess protruding downward in the cross section and having mounting portions at both ends of the recess is abutted against the opposite end portions of the panel material without supporting the lower portion. The seam, connecting structure installed to protrude downward from the bottom surface of the panel member and the recesses, respectively the mounting portions at both ends, the panel member was adhesively fixed by an adhesive to the panel member opposite ends.   After laying a plurality of panel materials on pillow beams suspended horizontally from above the columns provided between the columns or between the columns to cover between the columns provided between the columns or the columns By placing a reinforcing bar in the upper position of the installed panel material and placing concrete, the reinforced concrete integrated with the panel material is used to close the space between the columns or the columns provided between the columns. In the construction of the panel material at the joint between the panel material end portion and the fixed member that are abutted with each other in the unsupported state among the joints between the panel materials that are installed adjacent to the pillow beam. A non-permeable sheet having a connection structure and having a recess protruding downward in a cross section and having a mounting portion at one end of the recess is fixed to an end of a panel member that is abutted against the lower portion in an unsupported state Joint with member Eyes are installed with the concave part protruding downward from the lower surface of the panel material, the attachment part at one end is bonded and fixed to the edge part of the panel material with an adhesive, and the outer peripheral part of the concave part at the other end side is used as a fixed member. Panel material connection structure that is bonded and fixed with an adhesive.   After laying a plurality of panel materials on pillow beams suspended horizontally from above the columns provided between the columns or between the columns to cover between the columns provided between the columns or the columns The rebar is placed in the upper position of the installed panel material, and the concrete is placed, so that the reinforced concrete integrated with the panel material is used to close the space between the columns or the columns provided between the columns. In the construction of the joints between the panel members installed adjacent to the pillow beams, the lower ends are supported by the pillow beams, and the opposite panel member end portions are butted together. A panel material connection structure, wherein the water-impermeable sheet is formed along the seam in the cross-sectional direction from the upper surface of each of the opposing panel material end portions to the upper surface of the pillow beam that supports the panel material end portions below. Install Connection structure of the non-water permeable sheet and the panel member end and the body bolster bonded and fixed by an elastic adhesive resin panels.   The connection structure for a panel material according to claim 1, wherein the water-impermeable sheet is a stainless steel sheet or a titanium sheet.   The panel material connection structure according to claim 1, wherein the adhesive is an organic resin.   The panel material connection structure according to claim 1, wherein the panel material is a prestressed concrete panel material in which a PC steel wire is embedded.   The panel material connection structure according to claim 1, wherein the panel material is a fiber-reinforced panel material in which fibers are mixed with cement.   The panel material connection structure according to claim 10, wherein the panel material is a panel material formed of high-strength fiber reinforced mortar using silica fume cement.

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