WO2019097931A1 - Sealing structure and sealing method - Google Patents

Sealing structure and sealing method Download PDF

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Publication number
WO2019097931A1
WO2019097931A1 PCT/JP2018/038458 JP2018038458W WO2019097931A1 WO 2019097931 A1 WO2019097931 A1 WO 2019097931A1 JP 2018038458 W JP2018038458 W JP 2018038458W WO 2019097931 A1 WO2019097931 A1 WO 2019097931A1
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WO
WIPO (PCT)
Prior art keywords
sealing
structural member
transparent
sealing material
rubber
Prior art date
Application number
PCT/JP2018/038458
Other languages
French (fr)
Japanese (ja)
Inventor
大輔 山▲崎▼
康太 朝本
Original Assignee
ショーボンド建設株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ショーボンド建設株式会社 filed Critical ショーボンド建設株式会社
Priority to KR1020187033416A priority Critical patent/KR20190071630A/en
Priority to KR1020207020865A priority patent/KR102351827B1/en
Publication of WO2019097931A1 publication Critical patent/WO2019097931A1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
    • C09K3/1018—Macromolecular compounds having one or more carbon-to-silicon linkages
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/04—Bearings; Hinges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings

Definitions

  • the present invention relates to a sealing structure and a sealing method used for civil engineering structures or building structures.
  • Non-Patent Document 1 it has been used as an anti-corrosion measure for existing steel bearings that substitutes for repainting with heavy corrosion protection coating (Rc-I coating system), and it is used to seal steel bearings with special resin to block corrosion factors
  • Rc-I coating system heavy corrosion protection coating
  • Non-Patent Document 1 In the bearing anticorrosion method disclosed in Non-Patent Document 1, in particular, a steel bearing is sealed with a special resin from the concept of “wrapping the non-paintable one”. At this time, the bearing anticorrosion method disclosed in Non-Patent Document 1 not only enables long-term corrosion protection of a steel support by a special resin, but also maintains long-term transparency of the sealed portion, and at the time of inspection and survey. It is said that visual confirmation can be done.
  • Non-Patent Document 1 a transparent form having excellent weather resistance is installed around a steel support, and a special resin is filled in the inside of the transparent form to make it special. By using the transparency of the resin and the transparent mold, it is supposed that visual confirmation of the enclosed portion can be performed. Further, in the bearing anticorrosion method disclosed in Non-Patent Document 1, since the steel support is enclosed in the soft special resin, it is assumed that the support function of the steel support such as movement and rotation is not inhibited.
  • Non-Patent Document 1 when the bearing anticorrosion method disclosed in Non-Patent Document 1 applied to a steel bearing is temporarily applied to a rubber bearing and a silicone resin is applied as a special resin, the silicone resin contacts the rubber to form a silicone resin. Curing failure and loss of transparency of the silicone resin. Therefore, if the bearing anticorrosion method disclosed in Non-Patent Document 1 is temporarily applied to a rubber bearing, not only can the bearing function not be exhibited due to the curing failure of the silicone resin, but the transparency of the silicone resin is lost. There is an impediment to applying the bearing anticorrosion method disclosed in Non-Patent Document 1 to a rubber bearing since it becomes impossible to visually confirm the location.
  • an object of the present invention is to secure the visibility of the structural member using the rubber and the sealing material coated on the structural member.
  • an object of the present invention is to provide a sealing structure and a sealing method that can realize long-term anticorrosion performance of a structural member.
  • the present inventors surround the sealing material provided by curing the urethane resin so as to cover the rubber of the structural member in which the rubber is used, and surround the structural member and the sealing material.
  • the inventors invented a sealing structure comprising a transparent sealing body provided by curing a silicone resin.
  • the sealing structure according to the present invention since the rubber of the structural member and the transparent sealing body do not contact each other by providing the sealing material, curing failure of the transparent sealing body, the transparent sealing, Loss of the transparency of the body can be prevented, and as a result, the long-term anticorrosion performance of the structural member can be realized while securing the visibility of the structural member and the sealing material.
  • the sealing structure according to the first invention is a sealing structure used for a civil engineering structure or a building structure, and is provided by curing a urethane resin so as to cover the rubber of a structural member in which the rubber is used.
  • a sealing material, and a transparent sealing body provided by curing a silicone resin so as to surround the structural member and the sealing material, the sealing material and the transparent sealing body being deformed in the structural member It is characterized in that it can be deformed following.
  • a sealing structure according to a second invention is characterized in that, in the first invention, the transparent sealing body is bonded to the sealing material via a transparent primer having adhesiveness applied to the sealing material. I assume.
  • a sealing method is a sealing method used for a civil engineering structure or a building structure, wherein the rubber is filled with a urethane resin so as to cover the rubber of a structural member to be used, and filled.
  • a stop step is a sealing method used for a civil engineering structure or a building structure, wherein the rubber is filled with a urethane resin so as to cover the rubber of a structural member to be used, and filled.
  • the sealing method according to the fourth invention is the sealing method according to the third invention, wherein in the sealing step, a transparent primer having adhesiveness is applied to the sealing material, and then the structural member and the sealing material are surrounded. It is characterized in that it is filled with a silicone resin.
  • the sealing material is provided by curing the urethane resin so as to cover the rubber of the structural member, and the silicone resin is provided so as to surround the structural member and the sealing material.
  • the sealing material is provided to cover the rubber of the structural member, the rubber of the structural member and the transparent sealing body do not come in contact with each other. It is possible to prevent the curing failure of the stopper body and the loss of the transparency of the transparent sealing body, and as a result, the long-term anticorrosion performance of the structural member while securing the visibility of the structural member and the sealing material Can be realized.
  • the sealing material and the transparent sealing body can be deformed following the deformation of the structural member in service, when the structural member is deformed in service, the transparency is It is possible to maintain a state in which the structural member and the sealing material are surrounded by the sealing body for a long time to realize a long-term anticorrosion effect.
  • the sealing material and the transparent material are adhered to the sealing material by being adhered to the sealing material through the transparent primer having adhesiveness applied to the outer surface of the urethane resin.
  • Sealing member is firmly fixed to each other, and when the structural member is deformed in service, the sealing material and the transparent sealing member are deformed to the same degree as each other, and as a result, the transparent sealing member is It is possible to maintain a state in which the structural member and the sealing material are surrounded for a long time to realize a long-term anticorrosion effect.
  • FIG. 1 It is a perspective view showing support of a bridge where sealing structure to which the present invention is applied is used. It is a side view which shows the support of the bridge which can use the sealing structure to which this invention is applied. It is an enlarged front view which shows the sealing structure to which this invention is applied.
  • (A) is a front view which shows the state before a formwork is removed by the sealing structure to which this invention is applied,
  • (b) is a front view which shows the state after a formwork is removed.
  • (A) is an enlarged front view which shows the state before a formwork is removed by the sealing structure to which this invention is applied,
  • (b) is an enlarged front view which shows the state after a formwork is removed. It is.
  • (A) is a side view showing the support before deformation in the sealing structure to which the present invention is applied
  • (b) is a side view showing the transparent sealing body following the support after deformation .
  • (A) is a front view which shows the state which apply
  • It is a front view. It is an enlarged front view which shows the process of apply
  • the sealing structure 1 to which the present invention is applied is used for a civil engineering structure or a building structure, and is provided as, for example, as shown in FIG.
  • the structural member 7 such as the rubber bearing 71 of the bridge 8 is rusted by rainwater or the like for the structural member 7 in a civil engineering structure or building structure.
  • the sealing material 2 is provided so as to cover the rubber of the structural member 7 and the transparent sealing body 3 is provided so as to surround the structural member 7 and the sealing material 2.
  • the sealing structure 1 to which the present invention is applied mainly targets the structural member 7 such as the rubber bearing 71 or the like in which a rubber having a predetermined elastic modulus and a metal such as steel are used for anticorrosion.
  • the rubber support 71 is deformed along with the movement of the bridge girder 72, and includes a rubber 71a that deforms in the direction of arrow A in the drawing and metal flanges 71b disposed above and below the rubber 71a.
  • the rubber support 71 is not limited to this, and plate-shaped rubber and plate-shaped metal may be alternately stacked, and the upper and lower plate-shaped metals provided with irregularities may be made of rubber. It may be interposed. Natural rubber, chloroprene rubber, styrene butadiene rubber or the like is used as the material of the rubber 71 a in the rubber support 71.
  • the sealing structure 1 to which the present invention is applied is, as shown in FIG. 3, a sealing material 2 provided to cover the rubber 71 a of the structural member 7 such as the rubber bearing 71 of the bridge 8, the structural member 7 and the sealing material And a transparent sealing body 3 provided so as to surround 2.
  • the rubber bearing 71 when the rubber bearing 71 is to be subjected to anticorrosion, the rubber bearing 71 is installed in the gap between the bridge girder 72 such as H-shaped steel and the bridge pier such as concrete 70 By moving the bridge girder 72 at the time of service of 8, the rubber support 71 is deformed.
  • the sealing material 2 is provided by curing the urethane resin 20 that covers the structural member 7.
  • the sealing material 2 covers the rubber 71 a of the structural member 7 with the urethane resin 20 having a predetermined thickness to prevent the rubber 71 a of the structural member 7 from contacting the transparent sealing body 3.
  • the sealing material 2 is not limited to this.
  • the sealing material 2 only needs to cover at least the rubber 71 a of the structural member 7, and may not cover the metal flange portion 71 b of the structural member 7.
  • the sealing material 2 can prevent the rubber 71 a of the structural member 7 from coming into contact with the transparent sealing body 3, and the ridge portion 71 b of the structural member 7 from the outside of the transparent sealing body 3.
  • the corrosion status etc. can also be visually checked.
  • the urethane resin 20 is an organic compound having a urethane bond, and one having a resin-like physical property is used.
  • the urethane resin 20 one having flexibility after being cured is used, and a construction sealing material or the like defined in JIS A 5758 is used.
  • the sealing material 2 is integrated with the outer surface 21 of the urethane resin 20, and the transparent primer 4 having adhesiveness is applied to the outer surface 21 of the cured urethane resin 20.
  • the transparent primer 4 one having adhesiveness such as a urethane resin-based primer is used.
  • the transparent primer 4 is a transparent or semi-transparent one that is applied to the outer surface 21 of the transparent urethane resin 20.
  • the transparent sealing body 3 is provided by curing the silicone resin 30 so as to surround the structural member 7 and the sealing material 2.
  • the transparent sealing body 3 prevents the structural member 7 from being exposed to a corrosive environment such as rain water by surrounding the structural member 7 with the silicone resin 30 having a predetermined thickness.
  • the silicone resin 30 is an organic compound containing silicon and has a resin-like physical property.
  • the silicone resin 30 used is one having transparency or translucent transparency, and in the state of surrounding the periphery of the structural member 7 and the sealing material 2, the deterioration state or structure of the sealing material 2 coated on the structural member 7. The corrosion condition of the member 7 can be visually confirmed.
  • the silicone resin 30 one having an elongation of about 200% to 1,500% after curing is used, and for example, one having an elongation of 400% or more is used.
  • the transparent sealing body 3 is made of a silicone resin 30 by filling the interior 60 of the mold 6 assembled so as to surround the periphery of the structural member 7 with the silicone resin 30. Around the periphery of the structural member 7. And, as shown in FIG. 4 (b), the transparent sealing body 3 particularly hardens the silicone resin 30 filled in the inside 60 of the mold 6, and then the mold 6 around the structural member 7. Will be provided in the state of being removed.
  • the transparent resin paint 5 is applied to the outer surface 31 of the cured silicone resin 30 as necessary.
  • the mold release tape 62 and the paint release tape 63 are attached to the inner surface 61 of the mold 6 surrounding the periphery of the structural member 7, and the paint is peeled off.
  • the transparent resin paint 5 applied to the tape 63 the interior 60 of the mold 6 is filled with the silicone resin 30.
  • the transparent sealing body 3 is a silicone resin in which the transparent resin paint 5 applied to the paint peeling tape 63 is integrated with the outer surface 31 of the silicone resin 30 and is cured.
  • the transparent resin paint 5 is applied to the outer surface 31 of 30.
  • the transparent resin paint 5 has, for example, a weather resistance having a gloss retention of 80% or more after 3000 hours according to a sunshine weather meter test, and a weather resistant top coat for construction, etc. defined by JIS K 5658 is used. .
  • the transparent resin paint 5 mainly uses a fluorine resin paint having elasticity, and the outer surface 31 of the cured silicone resin 30 is covered with the transparent resin paint 5.
  • the transparent resin paint 5 is a sealing material coated on the structural member 7 in a state in which the transparent resin coating 5 is used that has transparency or translucent transparency and is applied to the outer surface 31 of the silicone resin 30 having transparency. The state of deterioration of 2 and the state of corrosion of the structural member 7 can be visually checked.
  • the formwork 6 mainly used is a plywood made of wood board in which the inner surface 61 to which the formwork peeling tape 62 is attached is formed in a substantially smooth surface. And, by using the decorative plywood or the like of the wood board as the formwork 6, the decorative plywood or the like can be easily cut or the like according to the construction environment of the site, and the molding operation of the formwork 6 can be easily implemented. It becomes a thing.
  • the mold release tape 62 is a single-sided tape such as a curing tape woven with polyethylene fibers or the like, and the adhesive surface of the mold release tape 62 is attached to the inner surface 61 of the mold 6.
  • the paint release tape 63 is a single-sided tape such as a PP tape made of polypropylene fiber or the like, and the adhesive surface of the paint release tape 63 is attached to the non-adhesive surface of the mold release tape 62. It will be stuck on the inner surface 61 of the form 6 with the peeling tape 62.
  • the mold 6 is removed from the periphery of the structural member 7, and the outer surface 31 of the silicone resin 30 is made of only the transparent resin paint 5 having elasticity. It will be in the covered state.
  • the transparent sealing body 3 is shown in FIG.6 (b) when the structural member 7 deform
  • the urethane resin 20 has flexibility so that the sealing material 2 can deform the urethane resin 20 following the deformation of the structural member 7.
  • the sealing method to which the present invention is applied is used as an anticorrosion countermeasure for the existing or new structural member 7 for the structural member 7 in a civil engineering structure or a building structure.
  • the urethane resin 20 is filled so as to cover the rubber 71a of the structural member 7 in which the rubber 71a is used, and the filled urethane resin 20 is cured.
  • the sealing step first, in the bridge girder 72, the rubber bearing 71, the concrete 70, etc., the surface in contact with the urethane resin 20 and the silicone resin 30 is treated with four types of kelen etc. do. Then, in the sealing step, the urethane resin 20 is filled so as to cover the rubber 71 a of the structural member 7, and the filled urethane resin 20 is cured to provide the sealing material 2.
  • the transparency primer 4 is applied to the outer surface 21 of the cured urethane resin 20 with a brush or the like.
  • the sealing step as shown in FIG. 8B, the form 6 molded so as to surround the periphery of the structural member 7 is assembled, and the structural member 7 is disposed in the inside 60 of the form 6.
  • the mold 6 is assembled in a state where the mold release tape 62 and the paint release tape 63 are attached to the inner surface 61 of the mold 6 It becomes.
  • the transparent resin paint 5 is applied to the paint peeling tape 63 on the inner surface 61 of the mold 6 and the transparent resin paint 5 is applied to substantially the entire inner surface 61 of the mold 6
  • the inside 60 of the mold 6 is filled with the silicone resin 30 before curing, and the silicone resin 30 filled in the inside 60 of the mold 6 is cured.
  • the transparent resin paint 5 may be applied to the upper surface 32 of the cured silicone resin 30 as necessary.
  • the mold release tape 62 is peeled off from the paint peeling tape 63 while the mold release tape 62 is attached to the inner surface 61 of the mold 6. While removing the formwork 6.
  • the coating release tape 63 is cured by curing the silicone resin 30 filled in the inside 60 of the mold 6 in a state in which the transparent resin paint 5 is applied to the inner surface 61 of the mold 6.
  • the transparent resin paint 5 applied to the above is integrated with the outer surface 31 of the cured silicone resin 30.
  • the transparent resin paint 5 is applied to the outer surface 31 of the cured silicone resin 30 by removing the mold 6 while peeling the mold release tape 62 from the paint release tape 63.
  • the transparent sealing body 3 in which the transparent resin paint 5 is covered with the paint peeling tape 63 is provided.
  • the coating peeling tape 63 is peeled off from the transparent resin paint 5 that has been applied to the outer surface 31 of the silicone resin 30. It is assumed that only the transparent resin paint 5 is left on the outer surface 31. Then, in the sealing step, only the transparent resin paint 5 is left on the outer surface 31 of the silicone resin 30, and the transparent sealing body 3 is provided so as to surround the structural member 7 such as the rubber bearing 71.
  • the sealing structure 1 to which the present invention is applied is, as shown in FIG. 3, a sealing material 2 provided by curing the urethane resin 20 so as to cover the rubber 71a of the structural member 7 using the rubber 71a
  • the transparent sealing body 3 is provided by curing the silicone resin 30 so as to surround the member 7 and the sealing material 2.
  • the sealing material 2 provided by curing the urethane resin 20 so as to cover the rubber 71 a of the structural member 7, the structural member 7 and the sealing material 2 are surrounded. And a transparent sealing body 3 provided by curing the silicone resin 30.
  • the sealing structure 1 to which the present invention is applied has a structure in use by the sealing material 2 having flexibility and the transparent sealing body 3 having a predetermined elongation rate.
  • the sealing material 2 and the transparent sealing body 3 can be deformed following the deformation of the member 7.
  • the sealing structure 1 to which the present invention is applied maintains the state where the structural member 7 and the sealing material 2 are surrounded by the transparent sealing body 3 for a long time, when the structural member 7 is deformed in service.
  • the long-term anticorrosion effect of the structural member 7 can be realized.
  • the sealing structure 1 to which the present invention is applied is bonded to the sealing material 2 via the transparent primer 4 having adhesiveness, in which the transparent sealing body 3 is applied to the outer surface 21 of the urethane resin 20.
  • the sealing material 2 and the transparent sealing body 3 are firmly fixed to each other, and when the structural member 7 is deformed in service, the sealing material 2 and the transparent Sealing member 3 deforms to the same degree as each other, and as a result, the state in which structural member 7 and sealing material 2 are surrounded by transparent sealing member 3 is maintained for a long time, and a long-term corrosion protection effect is achieved. It becomes possible to realize.
  • the transparent sealing body 3 is provided by the cured silicone resin 30 in a state where the mold 6 around the structural member 7 is removed. .
  • the sealing structure 1 to which the present invention is applied causes the transparent sealing body 3 to be softly deformed as the deformation of the transparent sealing body 3 surrounding the structural member 7 is not inhibited by the mold 6. This makes it possible to realize a long-term and reliable corrosion protection effect.
  • the transparent resin paint 5 is applied to the transparent sealing body 3 even when the mold 6 around the structural member 7 is removed.
  • the shape of the silicone resin 30 to be the transparent sealing body 3 can be maintained for a long time.
  • the rubber bearing 71 is provided because the molding work of the mold 6 with high accuracy is not required because the mold 6 around the structural member 7 is removed. It becomes possible to make the molding operation of the formwork 6 in the narrow part etc. of the bridge 8 easy, and to suppress construction cost.
  • the sealing structure 1 to which the present invention is applied As shown in FIG. 5, the outer surface 31 of the highly adhesive silicone resin 30 is covered with the transparent resin paint 5. Thereby, the sealing structure 1 to which the present invention is applied prevents dust, dirt, insects, and the like from adhering to the highly adhesive outer surface 31 of the silicone resin 30, and the long-term structural member 7 and the sealing material 2 are long. It is possible to ensure the appropriate visibility.
  • the sealing method to which the present invention is applied is a sealing step of providing the sealing material 2 by filling the urethane resin 20 so as to cover the rubber 71a of the structural member 7 in which the rubber 71a is used and curing the filled urethane resin 20. And filling the silicone resin 30 so as to surround the structural member 7 and the sealing material 2 and curing the filled silicone resin 30 to provide a transparent sealing body 3.
  • the sealing method to which the present invention is applied since the rubber of the structural member 7 and the transparent sealing body 3 do not contact each other, the curing failure of the transparent sealing body 3 or the transparent sealing is achieved. Loss of transparency of the body 3 can be prevented, and as a result, long-term and reliable corrosion prevention performance of the structural member 7 is realized while securing long-term visibility of the structural member 7 and the sealing material 2 It is possible to
  • the sealing material 2 can be provided so as to cover the rubber 71a of the structural member 7, and the rubber 71a of the structural member 7 can be covered with the sealing material 2 without a gap.
  • the mold release tape 62 is coated in a state where the mold release tape 62 is adhered to the inner surface 61 of the mold 6
  • the mold 6 is removed while being peeled off from the peeling tape 63.
  • FIG. 10 is a front view showing a form in which the sealing structure 1 to which the present invention is applied is used for the bridge 8 in which the side block 78 is provided.
  • the bridge 8 is provided with metal side blocks 78 on both sides of the structural member 7 such as the rubber bearing 71, and between the structural member 7 such as the rubber bearing 71 and the side block 78 The gap portion 79 is formed.
  • the urethane resin 20 is filled in the gap 79 and the sealing material 2 is provided so as to cover the rubber 71 a of the structural member 7 and the side block 78.
  • the sealing structure 1 to which the present invention is applied is to provide the sealing material 2 so as to cover the rubber 71a of the structural member 7 and the side block 78 in the bridge 8 provided with the rubber support 71.
  • the rubber 71a of the structural member 7 can be covered with the sealing material 2 without a gap.
  • the sealing structure 1 to which the present invention is applied may be filled with the urethane resin 20 in the gap portion 79 which becomes the narrow portion of the bridge 8, the workability can be improved.
  • the sealing structure 1 to which the present invention is applied since the outer surface 21 of the urethane resin 20 is disposed outside the gap 79, the transparency primer 4 is easily brushed or the like on the outer surface 21 of the urethane resin 20. It is possible to apply and as a result, it becomes possible to improve the workability.
  • FIG. 11 is a front view which shows the other form used for the bridge 8 in which the side block 78 is provided in the sealing structure 1 to which this invention is applied.
  • the bridge 8 is provided with metal side blocks 78 on both sides across the structural member 7 such as the rubber bearing 71, and between the structural member 7 such as the rubber bearing 71 and the side block 78 The gap portion 79 is formed.
  • the urethane resin 20 is filled in the gap 79 and the sealing material 2 is provided so as to cover the rubber 71 a of the structural member 7.
  • the sealing structure 1 to which the present invention is applied can be provided with the sealing material 2 so as to cover the rubber 71a of the structural member 7 in the bridge 8 provided with the rubber support 71. It becomes possible to coat the rubber 71a of the member 7 with the sealing material 2 without a gap. Moreover, since the sealing structure 1 to which the present invention is applied may be filled with the urethane resin 20 in the gap portion 79 which becomes the narrow portion of the bridge 8, the workability can be improved. Furthermore, in the sealing structure 1 to which the present invention is applied, since the outer surface 21 of the urethane resin 20 is disposed outside the gap 79, the transparency primer 4 is easily brushed or the like on the outer surface 21 of the urethane resin 20. It is possible to apply and as a result, it becomes possible to improve the workability.
  • Sealing structure 2 Sealing material 20: Urethane resin 21: Outer surface 3: Transparency sealing body 30: Silicone resin 31: Outer surface 32: Top surface 4: Transparency primer 5: Transparency resin paint 6: Formwork 60: Internal 61: Inner surface 62: Formwork peeling tape 63: Paint peeling tape 7: Structural member 71: Rubber bearing 71a: Rubber 71b: Ridge 72: Bridge girder 78: Side block 79: Clearance 8: Bridge

Abstract

[Problem] To provide a sealing structure and a sealing method in which long-lasting anticorrosion performance of a structural member using rubber is implemented while the visibility of the structural member or a sealing material coated on the structural member is ensured. [Solution] A sealing structure 1 to which the present invention has been applied, is used for civil engineering structures or architectural structures, and is provided with: a sealing material 2 which is provided by curing a urethane resin 20 so as to cover a rubber 71a of a structural member 7; and a transparent sealing body 3 which is provided by curing a silicone resin 30 so as to enclose the structural member 7 and the sealing material 2. The present invention is characterized in that the sealing material 2 and the transparent sealing body 3 can be deformed by following deformation of the structural member 7.

Description

封止構造及び封止工法Sealing structure and sealing method
　本発明は、土木構造物又は建築構造物に用いられる封止構造及び封止工法に関する。 The present invention relates to a sealing structure and a sealing method used for civil engineering structures or building structures.
　従来から、重防食塗装（Ｒｃ－Ｉ塗装系）による塗替え塗装に代替する既設鋼製支承の防食対策工として用いられて、鋼製支承を特殊樹脂で封入して腐食因子を遮断するものとして、非特許文献１に開示される支承防食工法が提案されている。 In the past, it has been used as an anti-corrosion measure for existing steel bearings that substitutes for repainting with heavy corrosion protection coating (Rc-I coating system), and it is used to seal steel bearings with special resin to block corrosion factors The bearing anticorrosion method disclosed in Non-Patent Document 1 has been proposed.
　非特許文献１に開示される支承防食工法は、特に、「塗れないものは包む」という発想から、鋼製支承を特殊樹脂で封入するものである。このとき、非特許文献１に開示される支承防食工法は、特殊樹脂による鋼製支承の長期防食が可能となるだけでなく、封入箇所の長期的な透明性を維持して、点検調査時における目視確認ができるとされている。 In the bearing anticorrosion method disclosed in Non-Patent Document 1, in particular, a steel bearing is sealed with a special resin from the concept of “wrapping the non-paintable one”. At this time, the bearing anticorrosion method disclosed in Non-Patent Document 1 not only enables long-term corrosion protection of a steel support by a special resin, but also maintains long-term transparency of the sealed portion, and at the time of inspection and survey. It is said that visual confirmation can be done.
　ここで、非特許文献１に開示される支承防食工法は、鋼製支承の周囲に耐候性に優れた透明型枠が設置されるとともに、透明型枠の内部に特殊樹脂が充填されて、特殊樹脂及び透明型枠の透明性を利用することで、封入箇所の目視確認ができるとされている。そして、非特許文献１に開示される支承防食工法は、柔らかい特殊樹脂に鋼製支承が封入されるため、鋼製支承の移動、回転等の支承機能を阻害しないものとされている。 Here, in the bearing anticorrosion method disclosed in Non-Patent Document 1, a transparent form having excellent weather resistance is installed around a steel support, and a special resin is filled in the inside of the transparent form to make it special. By using the transparency of the resin and the transparent mold, it is supposed that visual confirmation of the enclosed portion can be performed. Further, in the bearing anticorrosion method disclosed in Non-Patent Document 1, since the steel support is enclosed in the soft special resin, it is assumed that the support function of the steel support such as movement and rotation is not inhibited.
　しかしながら、鋼製支承に適用される非特許文献１に開示される支承防食工法を、仮にゴム支承に適用し特殊樹脂としてシリコーン樹脂を適用した場合、シリコーン樹脂がゴムに接触することで、シリコーン樹脂の硬化不良やシリコーン樹脂の透明性が失われることとなる。このため、非特許文献１に開示される支承防食工法を、仮にゴム支承に適用した場合、シリコーン樹脂の硬化不良により支承機能を発揮できなくなるばかりか、シリコーン樹脂の透明性が失われることにより封入箇所の目視確認をすることができなくなることから、非特許文献１に開示される支承防食工法を、ゴム支承に適用することについては阻害要因があった。 However, when the bearing anticorrosion method disclosed in Non-Patent Document 1 applied to a steel bearing is temporarily applied to a rubber bearing and a silicone resin is applied as a special resin, the silicone resin contacts the rubber to form a silicone resin. Curing failure and loss of transparency of the silicone resin. Therefore, if the bearing anticorrosion method disclosed in Non-Patent Document 1 is temporarily applied to a rubber bearing, not only can the bearing function not be exhibited due to the curing failure of the silicone resin, but the transparency of the silicone resin is lost. There is an impediment to applying the bearing anticorrosion method disclosed in Non-Patent Document 1 to a rubber bearing since it becomes impossible to visually confirm the location.
　そこで、本発明は、上述した問題点に鑑みて案出されたものであって、その目的とするところは、ゴムが用いられる構造部材や構造部材に被覆されるシーリング材の視認性を確保しながら、構造部材の長期的な防食性能を実現することのできる封止構造及び封止工法を提供することにある。 Therefore, the present invention has been made in view of the above-mentioned problems, and the object of the present invention is to secure the visibility of the structural member using the rubber and the sealing material coated on the structural member. However, an object of the present invention is to provide a sealing structure and a sealing method that can realize long-term anticorrosion performance of a structural member.
　本発明者らは、上述した課題を解決するために、ゴムが用いられる構造部材のゴムを被覆するようにウレタン樹脂を硬化させることで設けられるシーリング材と、構造部材及びシーリング材を取り囲むようにシリコーン樹脂を硬化させることで設けられる透明性封止体とを備えた封止構造を発明した。本発明に係る封止構造は、シーリング材を備えることで、構造部材のゴムと透明性封止体とが互いに接触することがないため、透明性封止体の硬化不良や、透明性封止体の透明性が失われるのを防止することができ、その結果、構造部材やシーリング材の視認性を確保しながら、構造部材の長期的な防食性能を実現することができる。 In order to solve the problems described above, the present inventors surround the sealing material provided by curing the urethane resin so as to cover the rubber of the structural member in which the rubber is used, and surround the structural member and the sealing material. The inventors invented a sealing structure comprising a transparent sealing body provided by curing a silicone resin. In the sealing structure according to the present invention, since the rubber of the structural member and the transparent sealing body do not contact each other by providing the sealing material, curing failure of the transparent sealing body, the transparent sealing, Loss of the transparency of the body can be prevented, and as a result, the long-term anticorrosion performance of the structural member can be realized while securing the visibility of the structural member and the sealing material.
　第１発明に係る封止構造は、土木構造物又は建築構造物に用いられる封止構造であって、ゴムが用いられる構造部材の前記ゴムを被覆するようにウレタン樹脂を硬化させることで設けられるシーリング材と、前記構造部材及び前記シーリング材を取り囲むようにシリコーン樹脂を硬化させることで設けられる透明性封止体とを備え、前記シーリング材及び前記透明性封止体が前記構造部材の変形に追従して変形できるものとなることを特徴とする。 The sealing structure according to the first invention is a sealing structure used for a civil engineering structure or a building structure, and is provided by curing a urethane resin so as to cover the rubber of a structural member in which the rubber is used. A sealing material, and a transparent sealing body provided by curing a silicone resin so as to surround the structural member and the sealing material, the sealing material and the transparent sealing body being deformed in the structural member It is characterized in that it can be deformed following.
　第２発明に係る封止構造は、第１発明において、前記透明性封止体は、前記シーリング材に塗布された接着性を有する透明性プライマーを介して前記シーリング材に接着されることを特徴とする。 A sealing structure according to a second invention is characterized in that, in the first invention, the transparent sealing body is bonded to the sealing material via a transparent primer having adhesiveness applied to the sealing material. I assume.
　第３発明に係る封止工法は、土木構造物又は建築構造物に用いられる封止工法であって、ゴムが用いられる構造部材の前記ゴムを被覆するようにウレタン樹脂を充填し、充填した前記ウレタン樹脂を硬化させることでシーリング材を設けるシーリング工程と、前記構造部材及び前記シーリング材を取り囲むようにシリコーン樹脂を充填し、充填した前記シリコーン樹脂を硬化させることで透明性封止体を設ける封止工程とを備えることを特徴とする。 A sealing method according to a third aspect of the present invention is a sealing method used for a civil engineering structure or a building structure, wherein the rubber is filled with a urethane resin so as to cover the rubber of a structural member to be used, and filled. A sealing step of providing a sealing material by curing a urethane resin, a silicone resin is filled so as to surround the structural member and the sealing material, and a seal is provided of a transparent sealing body by curing the filled silicone resin. And a stop step.
　第４発明に係る封止工法は、第３発明において、前記封止工程では、前記シーリング材に接着性を有する透明性プライマーを塗布した上で、前記構造部材及び前記シーリング材を取り囲むように前記シリコーン樹脂を充填することを特徴とする。 The sealing method according to the fourth invention is the sealing method according to the third invention, wherein in the sealing step, a transparent primer having adhesiveness is applied to the sealing material, and then the structural member and the sealing material are surrounded. It is characterized in that it is filled with a silicone resin.
　第１発明～第４発明によれば、構造部材のゴムを被覆するようにウレタン樹脂を硬化させることで設けられるシーリング材と、構造部材及びシーリング材を取り囲むようにシリコーン樹脂を硬化させることで設けられる透明性封止体とを備えることにより、構造部材に被覆されるシーリング材の劣化状況や構造部材の雨水等による腐食状況等を長期的に目視確認できるものとして、透明性封止体で防食される構造部材やシーリング材の長期的な視認性を確保することが可能となる。 According to the first to fourth inventions, the sealing material is provided by curing the urethane resin so as to cover the rubber of the structural member, and the silicone resin is provided so as to surround the structural member and the sealing material. By providing the transparent sealing body, it is possible to visually check the deterioration state of the sealing material coated on the structural member, the corrosion state of the structural member due to rain water, etc. in the long term, It is possible to secure long-term visibility of structural members and sealing materials.
　第１発明～第４発明によれば、構造部材のゴムを被覆するようにシーリング材が設けられるため、構造部材のゴムと透明性封止体とが互いに接触することがないため、透明性封止体の硬化不良や、透明性封止体の透明性が失われるのを防止することができ、その結果、構造部材やシーリング材の視認性を確保しながら、構造部材の長期的な防食性能を実現することができる。 According to the first to fourth inventions, since the sealing material is provided to cover the rubber of the structural member, the rubber of the structural member and the transparent sealing body do not come in contact with each other. It is possible to prevent the curing failure of the stopper body and the loss of the transparency of the transparent sealing body, and as a result, the long-term anticorrosion performance of the structural member while securing the visibility of the structural member and the sealing material Can be realized.
　第１発明～第４発明によれば、供用時における構造部材の変形に追従してシーリング材及び透明性封止体が変形できるものとなるため、供用時において構造部材が変形したとき、透明性封止体で構造部材及びシーリング材が取り囲まれた状態を長期的に維持して、長期的な防食効果を実現することが可能となる。 According to the first to fourth inventions, since the sealing material and the transparent sealing body can be deformed following the deformation of the structural member in service, when the structural member is deformed in service, the transparency is It is possible to maintain a state in which the structural member and the sealing material are surrounded by the sealing body for a long time to realize a long-term anticorrosion effect.
　特に、第２発明、第４発明によれば、透明性封止体がウレタン樹脂の外面に塗布された接着性を有する透明性プライマーを介してシーリング材に接着されることにより、シーリング材及び透明性封止体が互いに強固に固定されるものとなり、供用時において構造部材が変形したとき、シーリング材及び透明性封止体が互いに同程度変形するものとなり、その結果、透明性封止体で構造部材及びシーリング材が取り囲まれた状態を長期的に維持して、長期的な防食効果を実現することが可能となる。 In particular, according to the second invention and the fourth invention, the sealing material and the transparent material are adhered to the sealing material by being adhered to the sealing material through the transparent primer having adhesiveness applied to the outer surface of the urethane resin. Sealing member is firmly fixed to each other, and when the structural member is deformed in service, the sealing material and the transparent sealing member are deformed to the same degree as each other, and as a result, the transparent sealing member is It is possible to maintain a state in which the structural member and the sealing material are surrounded for a long time to realize a long-term anticorrosion effect.
本発明を適用した封止構造が用いられる橋梁の支承を示す斜視図である。It is a perspective view showing support of a bridge where sealing structure to which the present invention is applied is used. 本発明を適用した封止構造が用いらえる橋梁の支承を示す側面図である。It is a side view which shows the support of the bridge which can use the sealing structure to which this invention is applied. 本発明を適用した封止構造を示す拡大正面図である。It is an enlarged front view which shows the sealing structure to which this invention is applied. （ａ）は、本発明を適用した封止構造で型枠が撤去される前の状態を示す正面図であり、（ｂ）は、型枠が撤去された後の状態を示す正面図である。(A) is a front view which shows the state before a formwork is removed by the sealing structure to which this invention is applied, (b) is a front view which shows the state after a formwork is removed. . （ａ）は、本発明を適用した封止構造で型枠が撤去される前の状態を示す拡大正面図であり、（ｂ）は、型枠が撤去された後の状態を示す拡大正面図である。(A) is an enlarged front view which shows the state before a formwork is removed by the sealing structure to which this invention is applied, (b) is an enlarged front view which shows the state after a formwork is removed. It is. （ａ）は、本発明を適用した封止構造で変形する前の支承を示す側面図であり、（ｂ）は、変形した後の支承に追従する透明性封止体を示す側面図である。(A) is a side view showing the support before deformation in the sealing structure to which the present invention is applied, (b) is a side view showing the transparent sealing body following the support after deformation . 本発明を適用した封止工法のシーリング工程でウレタン樹脂を充填した状態を示す正面図である。It is a front view which shows the state which was filled with the urethane resin at the sealing process of the sealing construction method to which this invention is applied. （ａ）は、本発明を適用した封止工法の封止工程でウレタン樹脂の外面に透明性プライマーを塗布した状態を示す正面図であり、（ｂ）は、型枠を組み立てた状態を示す正面図である。(A) is a front view which shows the state which apply | coated the transparency primer to the outer surface of the urethane resin at the sealing process of the sealing method to which this invention is applied, (b) shows the state which assembled the mold. It is a front view. 本発明を適用した封止工法の封止工程でシリコーン樹脂の外面に透明性樹脂塗料を塗布する過程を示す拡大正面図である。It is an enlarged front view which shows the process of apply | coating a transparent resin paint to the outer surface of a silicone resin at the sealing process of the sealing construction method to which this invention is applied. 本発明を適用した封止構造がサイドブロック７８が設けられる橋梁８に用いられる形態を示す正面図である。It is a front view which shows the form by which the sealing structure to which this invention is applied is used for the bridge 8 in which the side block 78 is provided. 本発明を適用した封止構造がサイドブロック７８が設けられる橋梁８に用いられる他の形態を示す正面図である。It is a front view which shows the other form by which the sealing structure to which this invention is applied is used for the bridge 8 in which the side block 78 is provided.
　以下、本発明を適用した封止構造１及び封止工法を実施するための形態について、図面を参照しながら詳細に説明する。 Hereinafter, a sealing structure 1 to which the present invention is applied and an embodiment for carrying out a sealing method will be described in detail with reference to the drawings.
　本発明を適用した封止構造１は、土木構造物又は建築構造物に用いられるものであって、例えば、図１に示すように、橋梁８のゴム支承７１等を防食するものとして設けられる。 The sealing structure 1 to which the present invention is applied is used for a civil engineering structure or a building structure, and is provided as, for example, as shown in FIG.
　本発明を適用した封止構造１は、図２に示すように、土木構造物又は建築構造物における構造部材７を対象として、橋梁８のゴム支承７１等の構造部材７が雨水等により錆び、腐食することを防止するために、構造部材７のゴムを被覆するようにシーリング材２と、構造部材７及びシーリング材２を取り囲むように透明性封止体３とが設けられるものとなる。 In the sealing structure 1 to which the present invention is applied, as shown in FIG. 2, the structural member 7 such as the rubber bearing 71 of the bridge 8 is rusted by rainwater or the like for the structural member 7 in a civil engineering structure or building structure. In order to prevent corrosion, the sealing material 2 is provided so as to cover the rubber of the structural member 7 and the transparent sealing body 3 is provided so as to surround the structural member 7 and the sealing material 2.
　本発明を適用した封止構造１は、主に、所定の弾性率を有するゴムと鋼鉄等の金属とが用いられるゴム支承７１等の構造部材７を防食の対象とする。ゴム支承７１は、橋桁７２の移動に伴って変形するものであり、図中矢印Ａ方向に変形するゴム７１ａと、ゴム７１ａの上下に配置される金属製の沓部７１ｂとを有する。なお、ゴム支承７１は、これに限らず、板状のゴムと板状の金属とが交互に積層されたものであってもよいし、凹凸が設けられた上下の板状の金属にゴムが介装されたものであってもよい。ゴム支承７１におけるゴム７１ａの材質は、天然ゴム、クロロプレンゴム、スチレンブタジエンゴム等が用いられる。 The sealing structure 1 to which the present invention is applied mainly targets the structural member 7 such as the rubber bearing 71 or the like in which a rubber having a predetermined elastic modulus and a metal such as steel are used for anticorrosion. The rubber support 71 is deformed along with the movement of the bridge girder 72, and includes a rubber 71a that deforms in the direction of arrow A in the drawing and metal flanges 71b disposed above and below the rubber 71a. The rubber support 71 is not limited to this, and plate-shaped rubber and plate-shaped metal may be alternately stacked, and the upper and lower plate-shaped metals provided with irregularities may be made of rubber. It may be interposed. Natural rubber, chloroprene rubber, styrene butadiene rubber or the like is used as the material of the rubber 71 a in the rubber support 71.
　本発明を適用した封止構造１は、図３に示すように、橋梁８のゴム支承７１等の構造部材７のゴム７１ａを被覆するように設けられるシーリング材２と、構造部材７及びシーリング材２を取り囲むように設けられる透明性封止体３とを備える。本発明を適用した封止構造１は、ゴム支承７１を防食の対象とする場合には、Ｈ形鋼等の橋桁７２とコンクリート７０等の橋脚との間隙にゴム支承７１が設置されて、橋梁８の供用時に橋桁７２が移動することで、ゴム支承７１に変形が生じるものとなる。 The sealing structure 1 to which the present invention is applied is, as shown in FIG. 3, a sealing material 2 provided to cover the rubber 71 a of the structural member 7 such as the rubber bearing 71 of the bridge 8, the structural member 7 and the sealing material And a transparent sealing body 3 provided so as to surround 2. In the sealing structure 1 to which the present invention is applied, when the rubber bearing 71 is to be subjected to anticorrosion, the rubber bearing 71 is installed in the gap between the bridge girder 72 such as H-shaped steel and the bridge pier such as concrete 70 By moving the bridge girder 72 at the time of service of 8, the rubber support 71 is deformed.
　シーリング材２は、構造部材７を被覆するウレタン樹脂２０を硬化させることで設けられる。シーリング材２は、所定の厚みとなるウレタン樹脂２０で構造部材７のゴム７１ａを被覆することで、構造部材７のゴム７１ａが透明性封止体３に接触することを防止する。なお、シーリング材２は、構造部材７の全体を被覆するものが例示されているが、これに限定されるものではない。例えば、シーリング材２は、少なくとも構造部材７のゴム７１ａを被覆するものであればよく、構造部材７の金属製の沓部７１ｂを被覆しないものであってもよい。このとき、シーリング材２は、構造部材７のゴム７１ａが透明性封止体３に接触することを防止することができるとともに、透明性封止体３の外側から構造部材７の沓部７１ｂ等の腐食状況等も目視確認できるものとなる。 The sealing material 2 is provided by curing the urethane resin 20 that covers the structural member 7. The sealing material 2 covers the rubber 71 a of the structural member 7 with the urethane resin 20 having a predetermined thickness to prevent the rubber 71 a of the structural member 7 from contacting the transparent sealing body 3. In addition, although the thing which coat | covers the whole structural member 7 is illustrated, the sealing material 2 is not limited to this. For example, the sealing material 2 only needs to cover at least the rubber 71 a of the structural member 7, and may not cover the metal flange portion 71 b of the structural member 7. At this time, the sealing material 2 can prevent the rubber 71 a of the structural member 7 from coming into contact with the transparent sealing body 3, and the ridge portion 71 b of the structural member 7 from the outside of the transparent sealing body 3. The corrosion status etc. can also be visually checked.
　ウレタン樹脂２０は、ウレタン結合を有する有機化合物であって物理的性状が樹脂状のものが用いられる。ここで、ウレタン樹脂２０は、硬化させた後に柔軟性を有するものが用いられて、ＪＩＳ　Ａ　５７５８で規定される建築用シーリング材等が用いられる。 The urethane resin 20 is an organic compound having a urethane bond, and one having a resin-like physical property is used. Here, as the urethane resin 20, one having flexibility after being cured is used, and a construction sealing material or the like defined in JIS A 5758 is used.
　シーリング材２は、ウレタン樹脂２０の外面２１に一体化して、硬化させたウレタン樹脂２０の外面２１に接着性を有する透明性プライマー４が塗布されるものとなる。透明性プライマー４は、ウレタン樹脂系プライマー等の接着性を有するものが用いられる。そして、透明性プライマー４は、透明又は半透明の透明性を有するものが用いられて、透明性を有するウレタン樹脂２０の外面２１に塗布されるものとなる。 The sealing material 2 is integrated with the outer surface 21 of the urethane resin 20, and the transparent primer 4 having adhesiveness is applied to the outer surface 21 of the cured urethane resin 20. As the transparent primer 4, one having adhesiveness such as a urethane resin-based primer is used. The transparent primer 4 is a transparent or semi-transparent one that is applied to the outer surface 21 of the transparent urethane resin 20.
　透明性封止体３は、構造部材７及びシーリング材２を取り囲むようにシリコーン樹脂３０を硬化させることで設けられる。透明性封止体３は、所定の厚みとなるシリコーン樹脂３０で構造部材７の周囲を取り囲むことで、構造部材７が雨水等の腐食環境にさらされることを防止する。 The transparent sealing body 3 is provided by curing the silicone resin 30 so as to surround the structural member 7 and the sealing material 2. The transparent sealing body 3 prevents the structural member 7 from being exposed to a corrosive environment such as rain water by surrounding the structural member 7 with the silicone resin 30 having a predetermined thickness.
　シリコーン樹脂３０は、ケイ素を含む有機化合物であって物理的性状が樹脂状のものが用いられる。シリコーン樹脂３０は、透明又は半透明の透明性を有するものが用いられて、構造部材７及びシーリング材２の周囲を取り囲んだ状態で、構造部材７に被覆されたシーリング材２の劣化状況や構造部材７の腐食状況等を目視確認できるものとなる。ここで、シリコーン樹脂３０は、硬化させた後の伸び率が２００％～１５００％程度のものが用いられて、例えば、４００％以上の伸び率となるものが用いられる。 The silicone resin 30 is an organic compound containing silicon and has a resin-like physical property. The silicone resin 30 used is one having transparency or translucent transparency, and in the state of surrounding the periphery of the structural member 7 and the sealing material 2, the deterioration state or structure of the sealing material 2 coated on the structural member 7. The corrosion condition of the member 7 can be visually confirmed. Here, as the silicone resin 30, one having an elongation of about 200% to 1,500% after curing is used, and for example, one having an elongation of 400% or more is used.
　透明性封止体３は、図４（ａ）に示すように、構造部材７の周囲を取り囲むように組み立てられた型枠６の内部６０にシリコーン樹脂３０が充填されることで、シリコーン樹脂３０で構造部材７の周囲を取り囲んだものとなる。そして、透明性封止体３は、特に、図４（ｂ）に示すように、型枠６の内部６０に充填されたシリコーン樹脂３０を硬化させてから、構造部材７の周囲の型枠６が撤去された状態で設けられるものとなる。 As shown in FIG. 4A, the transparent sealing body 3 is made of a silicone resin 30 by filling the interior 60 of the mold 6 assembled so as to surround the periphery of the structural member 7 with the silicone resin 30. Around the periphery of the structural member 7. And, as shown in FIG. 4 (b), the transparent sealing body 3 particularly hardens the silicone resin 30 filled in the inside 60 of the mold 6, and then the mold 6 around the structural member 7. Will be provided in the state of being removed.
　透明性封止体３は、必要に応じて、硬化させたシリコーン樹脂３０の外面３１に透明性樹脂塗料５が塗布される。透明性封止体３は、図５（ａ）に示すように、構造部材７の周囲を取り囲んだ型枠６の内面６１に型枠剥離テープ６２及び塗装剥離テープ６３が貼付されて、塗装剥離テープ６３に透明性樹脂塗料５が塗布された状態で、型枠６の内部６０にシリコーン樹脂３０が充填されるものとなる。そして、透明性封止体３は、塗装剥離テープ６３に塗布された透明性樹脂塗料５がシリコーン樹脂３０の外面３１に一体化して、図５（ｂ）に示すように、硬化させたシリコーン樹脂３０の外面３１に透明性樹脂塗料５が塗布されるものとなる。 In the transparent sealing body 3, the transparent resin paint 5 is applied to the outer surface 31 of the cured silicone resin 30 as necessary. In the transparent sealing body 3, as shown in FIG. 5A, the mold release tape 62 and the paint release tape 63 are attached to the inner surface 61 of the mold 6 surrounding the periphery of the structural member 7, and the paint is peeled off. With the transparent resin paint 5 applied to the tape 63, the interior 60 of the mold 6 is filled with the silicone resin 30. Then, as shown in FIG. 5B, the transparent sealing body 3 is a silicone resin in which the transparent resin paint 5 applied to the paint peeling tape 63 is integrated with the outer surface 31 of the silicone resin 30 and is cured. The transparent resin paint 5 is applied to the outer surface 31 of 30.
　透明性樹脂塗料５は、例えば、サンシャインウェザーメーター試験による３０００時間後の光沢保持率が８０％以上の耐候性を有して、ＪＩＳ　Ｋ　５６５８で規定される建築用耐候性上塗り塗料等が用いられる。透明性樹脂塗料５は、主に、伸縮性を有するフッ素樹脂塗料が用いられて、硬化させたシリコーン樹脂３０の外面３１が透明性樹脂塗料５に被覆された状態となる。そして、透明性樹脂塗料５は、透明又は半透明の透明性を有するものが用いられて、透明性を有するシリコーン樹脂３０の外面３１に塗布された状態で、構造部材７に被覆されたシーリング材２の劣化状況や構造部材７の腐食状況等を目視確認できるものとなる。 The transparent resin paint 5 has, for example, a weather resistance having a gloss retention of 80% or more after 3000 hours according to a sunshine weather meter test, and a weather resistant top coat for construction, etc. defined by JIS K 5658 is used. . The transparent resin paint 5 mainly uses a fluorine resin paint having elasticity, and the outer surface 31 of the cured silicone resin 30 is covered with the transparent resin paint 5. The transparent resin paint 5 is a sealing material coated on the structural member 7 in a state in which the transparent resin coating 5 is used that has transparency or translucent transparency and is applied to the outer surface 31 of the silicone resin 30 having transparency. The state of deterioration of 2 and the state of corrosion of the structural member 7 can be visually checked.
　型枠６は、主に、型枠剥離テープ６２が貼付される内面６１が略平滑面状に形成された木質ボードの化粧合板が用いられる。そして、型枠６は、木質ボードの化粧合板等が用いられることで、現場の施工環境に応じて、化粧合板等を容易に切断等できるものとなり、型枠６の成形作業を容易に実施できるものとなる。 As the formwork 6, mainly used is a plywood made of wood board in which the inner surface 61 to which the formwork peeling tape 62 is attached is formed in a substantially smooth surface. And, by using the decorative plywood or the like of the wood board as the formwork 6, the decorative plywood or the like can be easily cut or the like according to the construction environment of the site, and the molding operation of the formwork 6 can be easily implemented. It becomes a thing.
　型枠剥離テープ６２は、ポリエチレン繊維等で織られた養生テープ等の片面テープが用いられて、型枠剥離テープ６２の粘着面が型枠６の内面６１に貼付される。塗装剥離テープ６３は、ポリプロピレン繊維等を材質とするＰＰテープ等の片面テープが用いられて、塗装剥離テープ６３の粘着面が型枠剥離テープ６２の非粘着面に貼付されることで、型枠剥離テープ６２とともに型枠６の内面６１に貼付されるものとなる。 The mold release tape 62 is a single-sided tape such as a curing tape woven with polyethylene fibers or the like, and the adhesive surface of the mold release tape 62 is attached to the inner surface 61 of the mold 6. The paint release tape 63 is a single-sided tape such as a PP tape made of polypropylene fiber or the like, and the adhesive surface of the paint release tape 63 is attached to the non-adhesive surface of the mold release tape 62. It will be stuck on the inner surface 61 of the form 6 with the peeling tape 62.
　透明性封止体３は、図６（ａ）に示すように、構造部材７の周囲から型枠６が撤去されて、シリコーン樹脂３０の外面３１が伸縮性を有する透明性樹脂塗料５のみに被覆された状態となる。そして、透明性封止体３は、図６（ｂ）に示すように、構造部材７が図中矢印Ａ方向に変形したとき、シリコーン樹脂３０が所定の伸び率を有するとともに、透明性樹脂塗料５が伸縮性を有することで、構造部材７の変形に追従してシリコーン樹脂３０が変形できるものとなる。また、シーリング材２は、ウレタン樹脂２０が柔軟性を有することで、構造部材７の変形に追従してウレタン樹脂２０が変形できるものとなる。 As shown in FIG. 6 (a), the mold 6 is removed from the periphery of the structural member 7, and the outer surface 31 of the silicone resin 30 is made of only the transparent resin paint 5 having elasticity. It will be in the covered state. And as the transparent sealing body 3 is shown in FIG.6 (b), when the structural member 7 deform | transforms in the arrow A direction in a figure, while the silicone resin 30 has a predetermined | prescribed elongation rate, the transparent resin paint Since 5 has elasticity, the silicone resin 30 can be deformed following the deformation of the structural member 7. In addition, the urethane resin 20 has flexibility so that the sealing material 2 can deform the urethane resin 20 following the deformation of the structural member 7.
　本発明を適用した封止工法は、土木構造物又は建築構造物における構造部材７を対象に、既設又は新設の構造部材７の防食対策工として用いられる。本発明を適用した封止工法は、図７～図９に示すように、ゴム７１ａが用いられる構造部材７のゴム７１ａを被覆するようにウレタン樹脂２０を充填し、充填したウレタン樹脂２０を硬化させることでシーリング材２を設けるシーリング工程と、構造部材７及びシーリング材２を取り囲むようにシリコーン樹脂３０を充填し、充填したシリコーン樹脂３０を硬化させることで透明性封止体３を設ける封止工程とを備える。 The sealing method to which the present invention is applied is used as an anticorrosion countermeasure for the existing or new structural member 7 for the structural member 7 in a civil engineering structure or a building structure. In the sealing method to which the present invention is applied, as shown in FIGS. 7 to 9, the urethane resin 20 is filled so as to cover the rubber 71a of the structural member 7 in which the rubber 71a is used, and the filled urethane resin 20 is cured. Sealing step of providing the sealing material 2 and filling the silicone resin 30 so as to surround the structural member 7 and the sealing material 2 and curing the filled silicone resin 30 to provide the transparent sealing body 3 And a process.
　図７に示すように、シーリング工程では、必要に応じて、最初に、橋桁７２、ゴム支承７１及びコンクリート７０等において、ウレタン樹脂２０及びシリコーン樹脂３０が接する部分に、４種ケレン等により下地処理をする。そして、シーリング工程では、構造部材７のゴム７１ａを被覆するようにウレタン樹脂２０を充填し、充填したウレタン樹脂２０を硬化させることでシーリング材２を設ける。 As shown in FIG. 7, in the sealing step, first, in the bridge girder 72, the rubber bearing 71, the concrete 70, etc., the surface in contact with the urethane resin 20 and the silicone resin 30 is treated with four types of kelen etc. do. Then, in the sealing step, the urethane resin 20 is filled so as to cover the rubber 71 a of the structural member 7, and the filled urethane resin 20 is cured to provide the sealing material 2.
　次に、封止工程では、図８（ａ）に示すように、硬化させたウレタン樹脂２０の外面２１に透明性プライマー４が刷毛等で塗布される。そして、封止工程では、図８（ｂ）に示すように、構造部材７の周囲を取り囲むように成形された型枠６を組み立て、型枠６の内部６０に構造部材７が配置される。 Next, in the sealing step, as shown in FIG. 8A, the transparency primer 4 is applied to the outer surface 21 of the cured urethane resin 20 with a brush or the like. Then, in the sealing step, as shown in FIG. 8B, the form 6 molded so as to surround the periphery of the structural member 7 is assembled, and the structural member 7 is disposed in the inside 60 of the form 6.
　このとき、封止工程では、図９（ａ）に示すように、型枠６の内面６１に型枠剥離テープ６２及び塗装剥離テープ６３が貼付された状態で、型枠６が組み立てられたものとなる。そして、封止工程では、型枠６の内面６１の塗装剥離テープ６３に透明性樹脂塗料５が塗布されて、型枠６の内面６１の略全面に透明性樹脂塗料５が塗布された状態で、型枠６の内部６０に硬化前のシリコーン樹脂３０を充填し、型枠６の内部６０に充填したシリコーン樹脂３０を硬化させる。このとき、封止工程では、必要に応じて、硬化させたシリコーン樹脂３０の上面３２に透明性樹脂塗料５を塗布してもよい。 At this time, in the sealing step, as shown in FIG. 9A, the mold 6 is assembled in a state where the mold release tape 62 and the paint release tape 63 are attached to the inner surface 61 of the mold 6 It becomes. Then, in the sealing step, the transparent resin paint 5 is applied to the paint peeling tape 63 on the inner surface 61 of the mold 6 and the transparent resin paint 5 is applied to substantially the entire inner surface 61 of the mold 6 The inside 60 of the mold 6 is filled with the silicone resin 30 before curing, and the silicone resin 30 filled in the inside 60 of the mold 6 is cured. At this time, in the sealing step, the transparent resin paint 5 may be applied to the upper surface 32 of the cured silicone resin 30 as necessary.
　そして、封止工程では、図９（ｂ）に示すように、型枠６の内面６１に型枠剥離テープ６２を貼付させたままの状態で、型枠剥離テープ６２を塗装剥離テープ６３から剥離しながら型枠６を撤去する。 Then, in the sealing step, as shown in FIG. 9B, the mold release tape 62 is peeled off from the paint peeling tape 63 while the mold release tape 62 is attached to the inner surface 61 of the mold 6. While removing the formwork 6.
　このとき、封止工程では、型枠６の内面６１に透明性樹脂塗料５が塗布された状態で、型枠６の内部６０に充填されたシリコーン樹脂３０を硬化させることで、塗装剥離テープ６３に塗布された透明性樹脂塗料５が硬化させたシリコーン樹脂３０の外面３１に一体化する。そして、封止工程では、型枠剥離テープ６２を塗装剥離テープ６３から剥離しながら型枠６を撤去することで、硬化させたシリコーン樹脂３０の外面３１に透明性樹脂塗料５が塗布された状態で、透明性樹脂塗料５が塗装剥離テープ６３で被覆された透明性封止体３が設けられる。 At this time, in the sealing step, the coating release tape 63 is cured by curing the silicone resin 30 filled in the inside 60 of the mold 6 in a state in which the transparent resin paint 5 is applied to the inner surface 61 of the mold 6. The transparent resin paint 5 applied to the above is integrated with the outer surface 31 of the cured silicone resin 30. Then, in the sealing step, the transparent resin paint 5 is applied to the outer surface 31 of the cured silicone resin 30 by removing the mold 6 while peeling the mold release tape 62 from the paint release tape 63. Then, the transparent sealing body 3 in which the transparent resin paint 5 is covered with the paint peeling tape 63 is provided.
　そして、封止工程では、図９（ｃ）に示すように、シリコーン樹脂３０の外面３１に塗布された状態となった透明性樹脂塗料５から塗装剥離テープ６３を剥離して、シリコーン樹脂３０の外面３１に透明性樹脂塗料５のみが残されるものとする。そして、封止工程では、シリコーン樹脂３０の外面３１に透明性樹脂塗料５のみが残されて、ゴム支承７１等の構造部材７を取り囲むように透明性封止体３が設けられるものとなる。 Then, in the sealing step, as shown in FIG. 9C, the coating peeling tape 63 is peeled off from the transparent resin paint 5 that has been applied to the outer surface 31 of the silicone resin 30. It is assumed that only the transparent resin paint 5 is left on the outer surface 31. Then, in the sealing step, only the transparent resin paint 5 is left on the outer surface 31 of the silicone resin 30, and the transparent sealing body 3 is provided so as to surround the structural member 7 such as the rubber bearing 71.
　本発明を適用した封止構造１は、図３に示すように、ゴム７１ａが用いられる構造部材７のゴム７１ａを被覆するようにウレタン樹脂２０を硬化させることで設けられるシーリング材２と、構造部材７及びシーリング材２を取り囲むようにシリコーン樹脂３０を硬化させることで設けられる透明性封止体３とを備える。これにより、本発明を適用した封止構造１は、ゴム支承７１等の構造部材７の雨水等による腐食状況や構造部材７に被覆されたシーリング材２の劣化状況等を長期的に目視確認できるものとして、透明性封止体３で防食される構造部材７やシーリング材２の長期的な視認性を確保することが可能となる。 The sealing structure 1 to which the present invention is applied is, as shown in FIG. 3, a sealing material 2 provided by curing the urethane resin 20 so as to cover the rubber 71a of the structural member 7 using the rubber 71a The transparent sealing body 3 is provided by curing the silicone resin 30 so as to surround the member 7 and the sealing material 2. Thereby, in the sealing structure 1 to which the present invention is applied, the corrosion condition of the structural member 7 such as the rubber support 71 due to rain water or the like, and the deterioration condition of the sealing material 2 coated on the structural member 7 can be visually confirmed for a long time As a thing, it becomes possible to ensure long-term visibility of structural member 7 and sealing material 2 which are corroded by transparent closure 3.
　また、本発明を適用した封止構造１は、構造部材７のゴム７１ａを被覆するようにウレタン樹脂２０を硬化させることで設けられるシーリング材２と、構造部材７及びシーリング材２を取り囲むようにシリコーン樹脂３０を硬化させることで設けられる透明性封止体３とを備える。これにより、本発明を適用した封止構造１は、構造部材７のゴム７１ａと透明性封止体３とが互いに接触することがないため、透明性封止体３の硬化不良や、透明性封止体３の透明性が失われるのを防止することができ、その結果、構造部材７やシーリング材２の視認性を確保しながら、構造部材７の長期的な防食性能を実現することができる。 Further, in the sealing structure 1 to which the present invention is applied, the sealing material 2 provided by curing the urethane resin 20 so as to cover the rubber 71 a of the structural member 7, the structural member 7 and the sealing material 2 are surrounded. And a transparent sealing body 3 provided by curing the silicone resin 30. Thereby, in the sealing structure 1 to which the present invention is applied, since the rubber 71a of the structural member 7 and the transparent sealing body 3 do not contact each other, curing failure of the transparent sealing body 3 and transparency Loss of transparency of the sealing body 3 can be prevented, and as a result, long-term anticorrosion performance of the structural member 7 can be realized while securing the visibility of the structural member 7 and the sealing material 2 it can.
　また、本発明を適用した封止構造１は、図６に示すように、シーリング材２が柔軟性を有して透明性封止体３が所定の伸び率を有することで、供用時における構造部材７の変形に追従してシーリング材２及び透明性封止体３が変形できるものとなる。これにより、本発明を適用した封止構造１は、供用時において構造部材７が変形したとき、透明性封止体３で構造部材７及びシーリング材２が取り囲まれた状態を長期的に維持して、構造部材７の長期的な防食効果を実現することが可能となる。 In addition, as shown in FIG. 6, the sealing structure 1 to which the present invention is applied has a structure in use by the sealing material 2 having flexibility and the transparent sealing body 3 having a predetermined elongation rate. The sealing material 2 and the transparent sealing body 3 can be deformed following the deformation of the member 7. Thereby, the sealing structure 1 to which the present invention is applied maintains the state where the structural member 7 and the sealing material 2 are surrounded by the transparent sealing body 3 for a long time, when the structural member 7 is deformed in service. Thus, the long-term anticorrosion effect of the structural member 7 can be realized.
　本発明を適用した封止構造１は、透明性封止体３がウレタン樹脂２０の外面２１に塗布された接着性を有する透明性プライマー４を介してシーリング材２に接着される。これにより、本発明を適用した封止構造１は、シーリング材２及び透明性封止体３が互いに強固に固定されるものとなり、供用時において構造部材７が変形したとき、シーリング材２及び透明性封止体３が互いに同程度変形するものとなり、その結果、透明性封止体３で構造部材７及びシーリング材２が取り囲まれた状態を長期的に維持して、長期的な防食効果を実現することが可能となる。 The sealing structure 1 to which the present invention is applied is bonded to the sealing material 2 via the transparent primer 4 having adhesiveness, in which the transparent sealing body 3 is applied to the outer surface 21 of the urethane resin 20. Thereby, in the sealing structure 1 to which the present invention is applied, the sealing material 2 and the transparent sealing body 3 are firmly fixed to each other, and when the structural member 7 is deformed in service, the sealing material 2 and the transparent Sealing member 3 deforms to the same degree as each other, and as a result, the state in which structural member 7 and sealing material 2 are surrounded by transparent sealing member 3 is maintained for a long time, and a long-term corrosion protection effect is achieved. It becomes possible to realize.
　本発明を適用した封止構造１は、図４に示すように、構造部材７の周囲の型枠６が撤去された状態で、硬化させたシリコーン樹脂３０により透明性封止体３が設けられる。これにより、本発明を適用した封止構造１は、構造部材７を取り囲んだ透明性封止体３の変形が型枠６より阻害されないものとして、透明性封止体３に柔軟な変形をさせることで、長期的かつ確実な防食効果を実現することが可能となる。 In the sealing structure 1 to which the present invention is applied, as shown in FIG. 4, the transparent sealing body 3 is provided by the cured silicone resin 30 in a state where the mold 6 around the structural member 7 is removed. . Thereby, the sealing structure 1 to which the present invention is applied causes the transparent sealing body 3 to be softly deformed as the deformation of the transparent sealing body 3 surrounding the structural member 7 is not inhibited by the mold 6. This makes it possible to realize a long-term and reliable corrosion protection effect.
　そして、本発明を適用した封止構造１は、構造部材７の周囲の型枠６が撤去された状態であっても、透明性封止体３に透明性樹脂塗料５が塗布されることで、透明性封止体３となるシリコーン樹脂３０の長期的な形状保持が可能となる。また、本発明を適用した封止構造１は、構造部材７の周囲の型枠６が撤去されることで、精度の高い型枠６の成形作業が要求されないことから、ゴム支承７１が設けられた橋梁８の狭隘部等における型枠６の成形作業を容易にして施工コストを抑制することが可能となる。 And in the sealing structure 1 to which the present invention is applied, the transparent resin paint 5 is applied to the transparent sealing body 3 even when the mold 6 around the structural member 7 is removed. The shape of the silicone resin 30 to be the transparent sealing body 3 can be maintained for a long time. Further, in the sealing structure 1 to which the present invention is applied, the rubber bearing 71 is provided because the molding work of the mold 6 with high accuracy is not required because the mold 6 around the structural member 7 is removed. It becomes possible to make the molding operation of the formwork 6 in the narrow part etc. of the bridge 8 easy, and to suppress construction cost.
　本発明を適用した封止構造１は、図５に示すように、粘着性の高いシリコーン樹脂３０の外面３１が透明性樹脂塗料５に被覆された状態となる。これにより、本発明を適用した封止構造１は、シリコーン樹脂３０の粘着性の高い外面３１に、埃、ゴミ及び虫等が付着することを防止して、構造部材７やシーリング材２の長期的な視認性を確保することが可能となる。 In the sealing structure 1 to which the present invention is applied, as shown in FIG. 5, the outer surface 31 of the highly adhesive silicone resin 30 is covered with the transparent resin paint 5. Thereby, the sealing structure 1 to which the present invention is applied prevents dust, dirt, insects, and the like from adhering to the highly adhesive outer surface 31 of the silicone resin 30, and the long-term structural member 7 and the sealing material 2 are long. It is possible to ensure the appropriate visibility.
　本発明を適用した封止工法は、ゴム７１ａが用いられる構造部材７のゴム７１ａを被覆するようにウレタン樹脂２０を充填し、充填したウレタン樹脂２０を硬化させることでシーリング材２を設けるシーリング工程と、構造部材７及びシーリング材２を取り囲むようにシリコーン樹脂３０を充填し、充填したシリコーン樹脂３０を硬化させることで透明性封止体３を設ける封止工程とを備える。これにより、本発明を適用した封止工法は、構造部材７のゴムと透明性封止体３とが互いに接触することがないため、透明性封止体３の硬化不良や、透明性封止体３の透明性が失われるのを防止することができ、その結果、構造部材７やシーリング材２の長期的な視認性を確保しながら、構造部材７の長期的かつ確実な防食性能を実現することが可能となる。 The sealing method to which the present invention is applied is a sealing step of providing the sealing material 2 by filling the urethane resin 20 so as to cover the rubber 71a of the structural member 7 in which the rubber 71a is used and curing the filled urethane resin 20. And filling the silicone resin 30 so as to surround the structural member 7 and the sealing material 2 and curing the filled silicone resin 30 to provide a transparent sealing body 3. Thereby, in the sealing method to which the present invention is applied, since the rubber of the structural member 7 and the transparent sealing body 3 do not contact each other, the curing failure of the transparent sealing body 3 or the transparent sealing is achieved. Loss of transparency of the body 3 can be prevented, and as a result, long-term and reliable corrosion prevention performance of the structural member 7 is realized while securing long-term visibility of the structural member 7 and the sealing material 2 It is possible to
　本発明を適用した封止工法は、シーリング工程において、ウレタン樹脂２０を充填し、充填したウレタン樹脂２０を硬化させてシーリング材２を設けるため、ゴム支承７１が設けられた橋梁８の狭隘部等においても、構造部材７のゴム７１ａを被覆するようにシーリング材２を設けることができ、構造部材７のゴム７１ａを隙間なくシーリング材２で被覆することが可能となる。 In the sealing method to which the present invention is applied, since the urethane resin 20 is filled and the filled urethane resin 20 is cured in the sealing step to provide the sealing material 2, the narrow portion of the bridge 8 provided with the rubber support 71, etc. Also in this case, the sealing material 2 can be provided so as to cover the rubber 71a of the structural member 7, and the rubber 71a of the structural member 7 can be covered with the sealing material 2 without a gap.
　また、本発明を適用した封止工法は、図９（ｂ）に示すように、型枠６の内面６１に型枠剥離テープ６２を貼付させたままの状態で、型枠剥離テープ６２を塗装剥離テープ６３から剥離しながら型枠６を撤去するものとなる。これにより、本発明を適用した封止工法は、型枠剥離テープ６２と塗装剥離テープ６３との接着が必要以上に強固でなく、型枠剥離テープ６２を塗装剥離テープ６３から容易に剥離できるため、型枠６の撤去作業を容易に実施することが可能となる。 Further, in the sealing method to which the present invention is applied, as shown in FIG. 9B, the mold release tape 62 is coated in a state where the mold release tape 62 is adhered to the inner surface 61 of the mold 6 The mold 6 is removed while being peeled off from the peeling tape 63. Thereby, in the sealing method to which the present invention is applied, the adhesion between the mold release tape 62 and the paint release tape 63 is not stronger than necessary, and the mold release tape 62 can be easily removed from the paint release tape 63. , It is possible to easily carry out the work of removing the formwork 6.
　図１０は、本発明を適用した封止構造１がサイドブロック７８が設けられる橋梁８に用いられる形態を示す正面図である。図１０に示す形態において、橋梁８は、ゴム支承７１等の構造部材７を挟んで両側に金属製のサイドブロック７８が設けられ、ゴム支承７１等の構造部材７とサイドブロック７８との間には隙間部７９が形成される。このとき、本発明を適用した封止構造１は、ウレタン樹脂２０が隙間部７９に充填され、構造部材７のゴム７１ａとサイドブロック７８とを被覆するようにシーリング材２が設けられる。 FIG. 10 is a front view showing a form in which the sealing structure 1 to which the present invention is applied is used for the bridge 8 in which the side block 78 is provided. In the embodiment shown in FIG. 10, the bridge 8 is provided with metal side blocks 78 on both sides of the structural member 7 such as the rubber bearing 71, and between the structural member 7 such as the rubber bearing 71 and the side block 78 The gap portion 79 is formed. At this time, in the sealing structure 1 to which the present invention is applied, the urethane resin 20 is filled in the gap 79 and the sealing material 2 is provided so as to cover the rubber 71 a of the structural member 7 and the side block 78.
　図１０に示す形態において、本発明を適用した封止構造１は、ゴム支承７１が設けられた橋梁８において、構造部材７のゴム７１ａ及びサイドブロック７８を被覆するようにシーリング材２を設けることができ、構造部材７のゴム７１ａを隙間なくシーリング材２で被覆することが可能となる。また、本発明を適用した封止構造１は、橋梁８の狭隘部となる隙間部７９にウレタン樹脂２０を充填すればよいため、施工性を向上させることが可能となる。さらに、本発明を適用した封止構造１は、ウレタン樹脂２０の外面２１が、隙間部７９よりも外側に配置されるため、透明性プライマー４をウレタン樹脂２０の外面２１に容易に刷毛等で塗布することができ、その結果、施工性を向上させることが可能となる。 In the embodiment shown in FIG. 10, the sealing structure 1 to which the present invention is applied is to provide the sealing material 2 so as to cover the rubber 71a of the structural member 7 and the side block 78 in the bridge 8 provided with the rubber support 71. As a result, the rubber 71a of the structural member 7 can be covered with the sealing material 2 without a gap. Moreover, since the sealing structure 1 to which the present invention is applied may be filled with the urethane resin 20 in the gap portion 79 which becomes the narrow portion of the bridge 8, the workability can be improved. Furthermore, in the sealing structure 1 to which the present invention is applied, since the outer surface 21 of the urethane resin 20 is disposed outside the gap 79, the transparency primer 4 is easily brushed or the like on the outer surface 21 of the urethane resin 20. It is possible to apply and as a result, it becomes possible to improve the workability.
　また、図１１は、本発明を適用した封止構造１がサイドブロック７８が設けられる橋梁８に用いられる他の形態を示す正面図である。図１１に示す形態において、橋梁８は、ゴム支承７１等の構造部材７を挟んで両側に金属製のサイドブロック７８が設けられ、ゴム支承７１等の構造部材７とサイドブロック７８との間には隙間部７９が形成される。このとき、本発明を適用した封止構造１は、ウレタン樹脂２０が隙間部７９に充填され、構造部材７のゴム７１ａを被覆するようにシーリング材２が設けられる。 Moreover, FIG. 11 is a front view which shows the other form used for the bridge 8 in which the side block 78 is provided in the sealing structure 1 to which this invention is applied. In the embodiment shown in FIG. 11, the bridge 8 is provided with metal side blocks 78 on both sides across the structural member 7 such as the rubber bearing 71, and between the structural member 7 such as the rubber bearing 71 and the side block 78 The gap portion 79 is formed. At this time, in the sealing structure 1 to which the present invention is applied, the urethane resin 20 is filled in the gap 79 and the sealing material 2 is provided so as to cover the rubber 71 a of the structural member 7.
　図１１に示す形態において、本発明を適用した封止構造１は、ゴム支承７１が設けられた橋梁８において、構造部材７のゴム７１ａを被覆するようにシーリング材２を設けることができ、構造部材７のゴム７１ａを隙間なくシーリング材２で被覆することが可能となる。また、本発明を適用した封止構造１は、橋梁８の狭隘部となる隙間部７９にウレタン樹脂２０を充填すればよいため、施工性を向上させることが可能となる。さらに、本発明を適用した封止構造１は、ウレタン樹脂２０の外面２１が、隙間部７９よりも外側に配置されるため、透明性プライマー４をウレタン樹脂２０の外面２１に容易に刷毛等で塗布することができ、その結果、施工性を向上させることが可能となる。 In the embodiment shown in FIG. 11, the sealing structure 1 to which the present invention is applied can be provided with the sealing material 2 so as to cover the rubber 71a of the structural member 7 in the bridge 8 provided with the rubber support 71. It becomes possible to coat the rubber 71a of the member 7 with the sealing material 2 without a gap. Moreover, since the sealing structure 1 to which the present invention is applied may be filled with the urethane resin 20 in the gap portion 79 which becomes the narrow portion of the bridge 8, the workability can be improved. Furthermore, in the sealing structure 1 to which the present invention is applied, since the outer surface 21 of the urethane resin 20 is disposed outside the gap 79, the transparency primer 4 is easily brushed or the like on the outer surface 21 of the urethane resin 20. It is possible to apply and as a result, it becomes possible to improve the workability.
　以上、本発明の実施形態の例について詳細に説明したが、上述した実施形態は、何れも本発明を実施するにあたっての具体化の例を示したものに過ぎず、これらによって本発明の技術的範囲が限定的に解釈されてはならない。 As mentioned above, although the example of the embodiment of the present invention was explained in detail, any of the above-mentioned embodiments only shows the example of the embodiment in the case of carrying out the present invention. The scope should not be interpreted as limiting.
１　　　　　　　　　：封止構造
２　　　　　　　　　：シーリング材
２０　　　　　　　　：ウレタン樹脂
２１　　　　　　　　：外面
３　　　　　　　　　：透明性封止体
３０　　　　　　　　：シリコーン樹脂
３１　　　　　　　　：外面
３２　　　　　　　　：上面
４　　　　　　　　　：透明性プライマー
５　　　　　　　　　：透明性樹脂塗料
６　　　　　　　　　：型枠
６０　　　　　　　　：内部
６１　　　　　　　　：内面
６２　　　　　　　　：型枠剥離テープ
６３　　　　　　　　：塗装剥離テープ
７　　　　　　　　　：構造部材
７１　　　　　　　　：ゴム支承
７１ａ　　　　　　　：ゴム
７１ｂ　　　　　　　：沓部
７２　　　　　　　　：橋桁
７８　　　　　　　　：サイドブロック
７９　　　　　　　　：隙間部
８　　　　　　　　　：橋梁 1: Sealing structure 2: Sealing material 20: Urethane resin 21: Outer surface 3: Transparency sealing body 30: Silicone resin 31: Outer surface 32: Top surface 4: Transparency primer 5: Transparency resin paint 6: Formwork 60: Internal 61: Inner surface 62: Formwork peeling tape 63: Paint peeling tape 7: Structural member 71: Rubber bearing 71a: Rubber 71b: Ridge 72: Bridge girder 78: Side block 79: Clearance 8: Bridge

Claims (4)

  1. 　土木構造物又は建築構造物に用いられる封止構造であって、
    　ゴムが用いられる構造部材の前記ゴムを被覆するようにウレタン樹脂を硬化させることで設けられるシーリング材と、
    　前記構造部材及び前記シーリング材を取り囲むようにシリコーン樹脂を硬化させることで設けられる透明性封止体とを備え、
    　前記シーリング材及び前記透明性封止体が前記構造部材の変形に追従して変形できるものとなること
    　を特徴とする封止構造。     It is a sealing structure used for a civil engineering structure or a building structure,
    A sealing material provided by curing a urethane resin so as to cover the rubber of a structural member in which the rubber is used;
    And a transparent sealing body provided by curing a silicone resin so as to surround the structural member and the sealing material,
    A sealing structure characterized in that the sealing material and the transparent sealing body can be deformed following the deformation of the structural member.
  2. 　前記透明性封止体は、前記シーリング材に塗布された接着性を有する透明性プライマーを介して前記シーリング材に接着されること
    　を特徴とする請求項１記載の封止構造。     The sealing structure according to claim 1, wherein the transparent sealing body is bonded to the sealing material via a transparent primer having adhesiveness applied to the sealing material.
  3. 　土木構造物又は建築構造物に用いられる封止工法であって、
    　ゴムが用いられる構造部材の前記ゴムを被覆するようにウレタン樹脂を充填し、充填した前記ウレタン樹脂を硬化させることでシーリング材を設けるシーリング工程と、
    　前記構造部材及び前記シーリング材を取り囲むようにシリコーン樹脂を充填し、充填した前記シリコーン樹脂を硬化させることで透明性封止体を設ける封止工程とを備えること
    　を特徴とする封止工法。     A sealing method used for civil engineering structures or building structures,
    A sealing step of providing a sealing material by filling a urethane resin so as to cover the rubber of a structural member in which the rubber is used, and curing the filled urethane resin;
    And a sealing step of providing a transparent sealing body by filling a silicone resin so as to surround the structural member and the sealing material, and curing the filled silicone resin.
  4. 　前記封止工程では、前記シーリング材に接着性を有する透明性プライマーを塗布した上で、前記構造部材及び前記シーリング材を取り囲むように前記シリコーン樹脂を充填すること
    　を特徴とする請求項３記載の封止工法。
          In the sealing step, after applying a transparent primer having adhesiveness to the sealing material, the silicone resin is filled so as to surround the structural member and the sealing material. Sealing method.
PCT/JP2018/038458 2017-11-15 2018-10-16 Sealing structure and sealing method WO2019097931A1 (en)

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Citations (5)

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JPS63176505A (en) * 1987-01-13 1988-07-20 シヨ−ボンド建設株式会社 Method for preventing corrosion of steel movable part of structure
US4887788A (en) * 1988-01-15 1989-12-19 The Gates Rubber Company Base isolation pad
JP2003139194A (en) * 2001-10-31 2003-05-14 Nitta Ind Corp Rubber support
JP2005213487A (en) * 2004-02-02 2005-08-11 Ge Toshiba Silicones Co Ltd Room temperature-curing polyorganosiloxane composition
JP2012052627A (en) * 2010-09-02 2012-03-15 Yokohama Rubber Co Ltd:The Laminated rubber bearing

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Publication number Priority date Publication date Assignee Title
JP2844078B2 (en) * 1989-03-31 1999-01-06 ニッタ株式会社 Outer circumference coating method for seismic isolation device for buildings
JPH09268797A (en) * 1996-01-31 1997-10-14 Fujikura Ltd Seismic isolation structure of structural body
KR101148076B1 (en) * 2011-06-14 2012-05-24 홍채호 Waterproof coating technology maintaining transparency of amorphous polymer and being capable of observing defect visually

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63176505A (en) * 1987-01-13 1988-07-20 シヨ−ボンド建設株式会社 Method for preventing corrosion of steel movable part of structure
US4887788A (en) * 1988-01-15 1989-12-19 The Gates Rubber Company Base isolation pad
JP2003139194A (en) * 2001-10-31 2003-05-14 Nitta Ind Corp Rubber support
JP2005213487A (en) * 2004-02-02 2005-08-11 Ge Toshiba Silicones Co Ltd Room temperature-curing polyorganosiloxane composition
JP2012052627A (en) * 2010-09-02 2012-03-15 Yokohama Rubber Co Ltd:The Laminated rubber bearing

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