JP2017082403A

JP2017082403A - Embedded mold

Info

Publication number: JP2017082403A
Application number: JP2015208654A
Authority: JP
Inventors: 壮司大城; Soshi Oshiro; 角本　周; Shu Kakumoto; 周角本; 明夫正司; Akio Shoji; 綾子俵; Ayako Tawara
Original assignee: West Nippon Expressway Co Ltd; Oriental Shiraishi Corp
Current assignee: West Nippon Expressway Co Ltd; Oriental Shiraishi Corp
Priority date: 2015-10-23
Filing date: 2015-10-23
Publication date: 2017-05-18
Anticipated expiration: 2035-10-23
Also published as: JP6517121B2

Abstract

PROBLEM TO BE SOLVED: To provide an embedded mold that may be fitted readily in a gap closing part formed between precast members and prevents falling from the gap closing part.SOLUTION: An embedded mold 1 that applies the present invention is used for embedding a time-curable material 8 in a gap closing part 6 formed between a plurality of precast members 5 lined up next to each other leaving an interval, and includes: a bottom surface member 2 formed in a plate-form; a pair of side surface members 3 provided continuously on both edges in a width direction of the bottom surface member 2; and a plurality of rib members 4 formed between the pair of side surface members 3.SELECTED DRAWING: Figure 9

Description

本発明は、間隔を空けて並設された複数のプレキャスト部材の間に形成される間詰め部に経時硬化性材を埋めるために用いられる埋設型枠に関する。 The present invention relates to an embedding formwork used for embedding a time-curable material in a stuffing portion formed between a plurality of precast members arranged in parallel at intervals.

従来、プレキャストコンクリート桁の床版等の間詰め部に、主として、経時硬化性材であるコンクリートを場所打ちで施工する場合に、桁下に吊足場を構築し、この足場上で間詰め部の床版底板型枠を取付け、コンクリートの硬化後、これを取外していたため、間詰めコンクリートの構築に多くの労力及び時間を要していた。 Conventionally, when concrete, which is a time-hardening material, is mainly cast-in-placed in the space between the floors of precast concrete girders, a suspended scaffold is constructed under the beam, and the space between the space is Since the floor slab formwork was attached and the concrete was hardened, it was removed, so it took a lot of labor and time to construct the compacted concrete.

足場を設けることなく取付け、打設した間詰めコンクリートと一体化させることにより取り外しのための足場も不要とするプレキャスト部材の間詰め型枠を提供することを目的として、例えば、特許文献１〜４の開示技術が提案されている。 For example, Patent Documents 1 to 4 are provided for the purpose of providing a pre-cast member formwork that eliminates the need for a scaffold for removal by integrating with a concrete that has been installed and placed without a scaffold. The disclosed technology has been proposed.

特許文献１に開示されたプレキャストコンクリート桁の場所打ち床版部の施工型枠は、弾性を有する板体の一面に吊具取付部を設け、かつ、該面の縁部にシール材を付設し、床版隙間間隔より広い幅寸法を有することを特徴とする。 The construction form of the cast-in-place slab part of the precast concrete girder disclosed in Patent Document 1 is provided with a suspension attachment part on one surface of an elastic plate, and a sealing material is attached to the edge of the surface. The width dimension is wider than the gap between the floor slabs.

特許文献２に開示された間詰めコンクリート用埋設型枠は、支持パイプ（支持部材）と、吊ボルト（吊り部材）と、埋設板（埋設部材）とから概略構成されている。 The embedded form for embedded concrete disclosed in Patent Document 2 is generally configured by a support pipe (support member), a suspension bolt (suspend member), and an embedded plate (embedding member).

特許文献３に開示されたスラブ橋げたの間詰めコンクリート用型枠は、スラブ橋げた下部ベース片の傾斜壁に対し係合する傾斜支承板、傾斜支承板を平底板の両側縁より延出せしめた樋式溝型の型枠は樹脂材料にて構成され、該支承板は先端寄りに、急カーブの上方に向け凸状弯曲部、平底板寄りに緩カーブの凹状弯曲部とを連接した全体として波形を呈し、支承板の外側面の先端部および凹凸弯曲部の連接部に帯状パッキングを装着していることを特徴とする。 The formwork for slab bridged concrete disclosed in Patent Document 3 is an inclined support plate that is engaged with the inclined wall of the lower base piece of the slab bridge, and is formed by extending the inclined support plate from both side edges of the flat bottom plate. The groove-type formwork is made of resin material, and the support plate is corrugated as a whole with a convex curve part near the tip, a convex curve part toward the upper part of the sharp curve, and a gentle curve concave part near the flat bottom plate. And a band-like packing is attached to the end portion of the outer surface of the support plate and the connecting portion of the concave and convex portions.

特許文献４に開示されたプレキャストコンクリート桁の間詰め部の型枠は、複数の連続Ｔ型断面のリブをコンクリート側の面に突設した押出成型ＦＲＰ板体からなることを特徴とする。 The formwork of the filling portion of the precast concrete girder disclosed in Patent Document 4 is characterized by comprising an extruded FRP plate having a plurality of continuous T-shaped cross-section ribs protruding from the concrete side surface.

特開平８−１９９５１０号公報Japanese Patent Laid-Open No. 8-199510 特開平１０−１９１５号公報Japanese Patent Laid-Open No. 10-1915 特開平１０−２９８９１８号公報JP-A-10-298918 特開２００７−２９１７１０号公報JP 2007-291710 A

しかし、特許文献１又は２に開示された型枠は、吊下部材の下端部にはネジが切られ、埋設部材はナット等により吊下部材に固定されることから、吊下部材等に腐食が生じた場合、前記型枠が吊下部材から外れ、脱落するという問題点があった。 However, the formwork disclosed in Patent Document 1 or 2 has a screw at the lower end of the suspension member, and the embedded member is fixed to the suspension member by a nut or the like. When this occurs, there is a problem in that the formwork comes off from the suspension member and falls off.

特許文献３に開示されたスラブ橋げたの間詰めコンクリート用型枠は、リブ部材が設けられていないため、傾斜支承板と傾斜壁面との間にコンクリートが入り込んだ場合、傾斜支承板が容易に変形するため、間詰め部から脱落するという問題点があった。 Since the ribbed member is not provided in the slab bridged concrete formwork disclosed in Patent Document 3, when the concrete enters between the inclined support plate and the inclined wall surface, the inclined support plate is easily deformed. Therefore, there was a problem of dropping off from the stuffing part.

特許文献４に開示されたプレキャストコンクリート桁の間詰め部の型枠は、桁上の床版間詰め部の側方に角材を配設し、この角材上に横梁を掛け渡し、この横梁から吊治具を吊下げることから、取り付けに時間が掛かるという問題点があった。 The formwork of the precast concrete girder filling portion disclosed in Patent Document 4 has a square member arranged on the side of the floor slab filling portion on the girder, a horizontal beam is spanned over the square member, and the frame is suspended from the horizontal beam. Since the jig is suspended, there is a problem that it takes time to install.

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り、その目的とするところは、プレキャスト部材の間に形成される間詰め部に、足場を設けることなく容易に取り付けができ、間詰め部からの脱落の防止を実現することのできる埋設型枠を提供することにある。 Therefore, the present invention has been devised in view of the above-described problems, and the object of the present invention is to easily attach the padding portion formed between the precast members without providing a scaffold. Another object of the present invention is to provide an embedded formwork that can be prevented from falling off from the filling portion.

第１発明に係る埋設型枠は、間隔を空けて並設された複数のプレキャスト部材の間に形成される間詰め部に経時硬化性材を埋めるために用いられる埋設型枠であって、板状に形成される底面部材と、前記底面部材の幅方向の両端に連続して設けられる一対の側面部材と、前記一対の側面部材の間に形成される複数のリブ部材とを備えることを特徴とする。 An embedded form according to a first aspect of the present invention is an embedded form used for embedding a time-curable material in a stuffing portion formed between a plurality of precast members arranged side by side at intervals. A bottom member formed in a shape, a pair of side members provided continuously at both ends in the width direction of the bottom member, and a plurality of rib members formed between the pair of side members. And

第２発明に係る埋設型枠は、第１発明において、前記一対の側面部材は、上方に向け互いに拡がるように傾斜して形成されることを特徴とする。 The embedded formwork according to a second aspect of the present invention is characterized in that, in the first aspect, the pair of side members are formed to be inclined so as to expand toward each other.

第３発明に係る埋設型枠は、第１発明又は第２発明の何れかにおいて、前記リブ部材は、前記経時硬化性材と一体化させるための鋼材が挿通される挿通孔を有することを特徴とする。 The embedded formwork according to a third invention is characterized in that, in any one of the first invention and the second invention, the rib member has an insertion hole through which a steel material for integration with the time-hardening material is inserted. And

第４発明に係る埋設型枠は、第１発明〜第３発明の何れかにおいて、前記底面部材は、長手方向の両端に、他の埋設型枠と連結可能な底面連結部を有し、前記各側面部材は、長手方向の両端に、他の埋設型枠と連結可能な側面連結部を有することを特徴とする。 The embedded formwork according to a fourth aspect of the invention is any one of the first to third aspects, wherein the bottom surface member has a bottom face connecting portion connectable to another embedded formwork at both ends in the longitudinal direction, Each side member has side connection parts that can be connected to other embedded molds at both ends in the longitudinal direction.

第５発明に係る埋設型枠は、第１発明〜第４発明の何れかにおいて、高密度樹脂材料が用いられることを特徴とする。 The embedded formwork according to the fifth invention is characterized in that a high-density resin material is used in any one of the first to fourth inventions.

第６発明に係る埋設型枠は、第１発明〜第５発明の何れかにおいて、前記各側面部材は、前記プレキャスト部材と当接する面に止水性を有する接着剤が介装されることを特徴とする。 The embedded formwork according to a sixth aspect of the present invention is characterized in that, in any one of the first to fifth aspects, each side member is provided with an adhesive having a water-stopping property on a surface contacting the precast member. And

第１発明〜第６発明によれば、間詰め部に設置されるときに、底面部材の幅方向の両端が一のプレキャスト部材の側面と隣り合う他のプレキャスト部材の側面とに係止させることができるため、間詰め部の下方に足場を設けることなく、プレキャスト部材の上面から容易に取り付けることが可能となる。 According to 1st invention-6th invention, when installing in a padding part, the both ends of the width direction of a bottom face member are made to latch on the side face of the other precast member adjacent to the side face of one precast member. Therefore, it is possible to easily attach from the upper surface of the precast member without providing a scaffold under the padding portion.

また、第１発明〜第６発明によれば、一対の側面部材の上端の離間距離が拘束され、リブ部材の構成が省略された場合よりも曲げ剛性を高めることができることにより、上方から経時硬化性材の荷重の作用を受けたときに、底面部材が下方に向けて撓むような変形や、各側面部材の上端が互いに近づくような変形を抑えることができる。このため、プレキャスト部材の側面に底面部材が係止され、側面部材が当接した状態を維持でき、間詰め部からの脱落を防止することが可能となる。 Further, according to the first to sixth inventions, the separation distance between the upper ends of the pair of side surface members is restricted, and the bending rigidity can be increased as compared with the case where the configuration of the rib member is omitted, so that it is cured with time from above. It is possible to suppress deformation such that the bottom surface member bends downward when subjected to the action of the load of the property material and deformation such that the upper ends of the side surface members approach each other. For this reason, the bottom surface member is locked to the side surface of the precast member, the state where the side surface member is in contact can be maintained, and it is possible to prevent the drop-out from the stuffing portion.

特に、第２発明によれば、間詰め部に設けられるときに、一対の側面部材が上方に向け互いに拡がるように傾斜して形成されることによって、プレキャスト部材の側面に当接させることができるため、足場を設けることなく、プレキャスト部材の上面から容易に取り付けることが可能となる。 In particular, according to the second aspect of the present invention, when provided in the padding portion, the pair of side surface members are formed to be inclined so as to expand toward each other so that they can be brought into contact with the side surface of the precast member. Therefore, it is possible to easily attach from the upper surface of the precast member without providing a scaffold.

また、第２発明によれば、上方から経時硬化性材の荷重の作用を受けたときに、プレキャスト部材の側面に一対の側面部材が当接でき、間詰め部からの脱落を防止することが可能となる。 In addition, according to the second invention, when subjected to the action of the load of the time-curable material from above, the pair of side members can be brought into contact with the side surface of the precast member, and can be prevented from falling off from the padding portion. It becomes possible.

また、第２発明によれば、並列されたプレキャスト部材の間隔が、施工誤差や設計により変更された場合であっても、底面部材の幅寸法が異なる多数種の型枠を揃えなくとも、間詰め部に容易に取り付けることが可能となる。 Further, according to the second invention, even if the interval between the precast members arranged in parallel is changed due to construction error or design, it is not necessary to arrange many types of molds having different width dimensions of the bottom surface member. It can be easily attached to the filling portion.

特に、第３発明によれば、経時硬化性材が硬化して鋼材と一体化されたときに、リブ部材が鋼材に固定されるため、間詰め部からの脱落を防止することが可能となる。 In particular, according to the third invention, when the time-curable material is cured and integrated with the steel material, the rib member is fixed to the steel material, so that it is possible to prevent the drop-off from the stuffing portion. .

特に、第４発明によれば、間詰め部の橋軸方向の寸法に応じて適切な長さとなるように複数連結させた上で、間詰め部に一括で容易に取り付けが可能となる。 In particular, according to the fourth aspect of the present invention, a plurality of connecting portions can be connected to each other so as to have an appropriate length according to the dimension in the bridge axis direction of the filling portion, and can be easily attached to the filling portion in a lump.

特に、第５発明によれば、上方から経時硬化性材が埋め込まれたときに、底面部材が下方に向けて撓むような変形や、各側面部材の上端が互いに近づくような変形を抑えることができるため、間詰め部からの脱落を防止することが可能となる。 In particular, according to the fifth invention, when the time-curable material is embedded from above, it is possible to suppress deformation that causes the bottom surface member to bend downward and deformation that causes the upper ends of the side members to approach each other. Therefore, it is possible to prevent the dropout from the stuffing portion.

特に、第５発明によれば、鋼材の腐食生成物による体積膨張を防止でき、それに伴う経時硬化性材の体積膨張を防止できるため、プレキャスト部材の側面に底面部材が係止され、各側面部材が当接した状態を維持でき、間詰め部からの脱落を防止することが可能となる。 In particular, according to the fifth invention, the volume expansion due to the corrosion product of the steel material can be prevented, and the volume expansion of the time-hardening material can be prevented. Accordingly, the bottom surface member is locked to the side surface of the precast member, and each side surface member Can be maintained in contact with each other, and can be prevented from falling off from the padding portion.

特に、第６発明によれば、間詰め部に設置されるときに、各側面部材はプレキャスト部材と当接する面に止水性を有する接着剤が介装されることによって、プレキャスト部材の側面と接着されるため、間詰め部からの脱落を防止することが可能となる。 In particular, according to the sixth aspect of the present invention, each side member is bonded to the side surface of the precast member by interposing a water-stopping adhesive on the surface that comes into contact with the precast member when installed in the padding portion. Therefore, it is possible to prevent the dropout from the stuffing portion.

また、第６発明によれば、各側面部材は、プレキャスト部材と当接する面に止水性を有する接着剤が介装されることによって、プレキャスト部材との間に間隙を生じることを防止できるため、間詰め部からの経時硬化性材の漏出を防止することが可能となる。 Further, according to the sixth invention, each side member can prevent a gap from being formed between the side surface member and the precast member by interposing an adhesive having water-stopping property on the surface that comes into contact with the precast member. It is possible to prevent leakage of the curable material with time from the filling portion.

本発明を適用した第１実施形態に係る埋設型枠をプレキャスト部材の間に形成される間詰め部に設置した場合を示す斜視図である。It is a perspective view which shows the case where the embedding formwork which concerns on 1st Embodiment to which this invention is applied is installed in the filling part formed between precast members. （ａ）は、図１のＡ-Ａ線断面図であり、（ｂ）は、（ａ）の埋設型枠に鋼材を設置し、間詰め部に経時硬化性材を埋め込んだ状態を示す図である。(A) is the sectional view on the AA line of FIG. 1, (b) is the figure which shows the state which installed the steel material in the embedding formwork of (a), and embedded the time-hardening material in the padding part. It is. 図１の埋設型枠の一部を切断して示す拡大斜視図である。It is an expansion perspective view which cut | disconnects and shows a part of embedding formwork of FIG. 図１の埋設型枠のみを示す斜視図である。It is a perspective view which shows only the embedded formwork of FIG. 図１の埋設型枠で他の埋設型枠との連結状態を示す斜視図であり、（ａ）は、連結前の状態を示す図であり、（ｂ）は、連結後の状態を示す図である。It is a perspective view which shows the connection state with another embedded formwork by the embedded formwork of FIG. 1, (a) is a figure which shows the state before connection, (b) is a figure which shows the state after connection. It is. 図１の埋設型枠を上方から示す平面図である。It is a top view which shows the embedding formwork of FIG. 1 from upper direction. 図４の埋設型枠のリブ部材を主に示す鉛直断面図であり、（ａ）は、挿通孔が形成されたリブ部材を示す図であり、（ｂ）は、（ａ）に示すリブ部材の変形例である挿通孔が形成されないリブ部材を示す図であり、（ｃ）は、（ａ）に示すリブ部材の別の変形例である底面部材と離間したリブ部材を示す図である。FIG. 5 is a vertical sectional view mainly showing a rib member of the embedded form in FIG. 4, (a) is a view showing a rib member in which an insertion hole is formed, and (b) is a rib member shown in (a). It is a figure which shows the rib member in which the penetration hole which is a modification of this is not formed, (c) is a figure which shows the rib member spaced apart from the bottom face member which is another modification of the rib member shown to (a). 図１の埋設型枠のＢ-Ｂ線断面図であり、（ａ）は、直線形状に形成された鋼材を設置した状態を示す図であり、（ｂ）は、Ｕ字形状に形成された鋼材を設置した状態を示す図である。It is a BB line sectional view of an embedding formwork of Drawing 1, (a) is a figure showing the state where the steel material formed in the straight shape was installed, and (b) was formed in the U shape. It is a figure which shows the state which installed steel materials. 図１の埋設型枠に鋼材を設置し、間詰め部に経時硬化性材を埋め込んだ状態の一部を切断して示す拡大斜視図である。It is an expansion perspective view which cuts and shows a part of the state which installed steel materials in the embedding formwork of FIG. 1, and embedded the time-hardening material in the filling part. 図１の埋設型枠の鉛直断面図であり、（ａ）は、プレキャスト部材の間隔が図１よりも狭い場合を示す図であり、（ｂ）は、プレキャスト部材の間隔が図１よりも広い場合を示す図である。FIG. 2 is a vertical cross-sectional view of the embedded form in FIG. 1, (a) is a view showing a case where the interval between precast members is narrower than that in FIG. 1, and (b) is a case where the interval between precast members is wider than that in FIG. It is a figure which shows a case. 図１の埋設型枠でプレキャスト部材の間に形成される間詰め部に設置した場合を示す鉛直断面図であり、（ａ）は、Ｔ型橋桁の間に設置した場合を示す図であり、（ｂ）は、その変形例である中空床版橋桁の間に設置した場合を示す図であり、（ｃ）は、その別の変形例であるプレキャスト床版の間に設置した場合を示す図である。It is a vertical sectional view showing a case where it is installed in a filling portion formed between precast members in the embedded formwork of FIG. 1, (a) is a diagram showing a case where it is installed between T-shaped bridge girders, (B) is a figure which shows the case where it installs between the hollow floor slab bridge girders which are the modifications, (c) is the figure which shows the case where it installs between the precast slabs which are the other modifications It is. 本発明を適用した第２実施形態に係る埋設型枠をプレキャスト部材の間に形成される間詰め部に設置した場合を示す鉛直断面図である。It is a vertical sectional view which shows the case where the embedding formwork which concerns on 2nd Embodiment to which this invention is applied is installed in the filling part formed between precast members. 本発明を適用した第３実施形態に係る埋設型枠をプレキャスト部材の間に形成される間詰め部に設置した場合を示す鉛直断面図である。It is a vertical sectional view which shows the case where the embedded formwork which concerns on 3rd Embodiment to which this invention is applied is installed in the filling part formed between precast members.

以下、本発明を適用した埋設型枠１を実施するための第１実施形態について、図面を参照しながら詳細に説明する。 Hereinafter, a first embodiment for carrying out an embedded form 1 to which the present invention is applied will be described in detail with reference to the drawings.

埋設型枠１は、図１に示すように、主として、Ｔ型橋桁等の間隔を空けて並設された複数のプレキャスト部材５の間に設けられる。埋設型枠１は、図２（ａ）に示すように、複数のプレキャスト部材５の間に形成される間詰め部６に、図２（ｂ）に示すように、主として、セメント系材料を主成分とする経時硬化性材８を埋めるために用いられ、そのまま残置される。 As shown in FIG. 1, the buried mold 1 is mainly provided between a plurality of precast members 5 arranged in parallel with a space such as a T-shaped bridge girder. As shown in FIG. 2 (a), the embedded form 1 is mainly composed of a cement-based material as shown in FIG. 2 (b) in the space 6 formed between the plurality of precast members 5. Used to fill the time-curable material 8 as a component and left as it is.

埋設型枠１は、Ｔ型橋桁に限らず、図１１（ｂ）に示すように、中空床版橋桁や、図１１（ｃ）に示すように、プレキャスト床版等との間に設けられてもよい。埋設型枠１は、主として、高密度樹脂材料が用いられる。ここで、高密度樹脂材料とは、密度が０．９４ｇ／ｃｍ³以上の樹脂材料である。埋設型枠１は、例えば、高密度ポリエチレン樹脂、ポリ塩化ビニル樹脂等が用いられる。 The embedded formwork 1 is not limited to a T-shaped bridge girder, and is provided between a hollow floor slab bridge girder or a precast floor slab as shown in FIG. 11 (c). Also good. For the embedded form 1, a high-density resin material is mainly used. Here, the high density resin material is a resin material having a density of 0.94 g / cm ³ or more. For example, a high-density polyethylene resin or a polyvinyl chloride resin is used for the embedded mold 1.

プレキャスト部材５は、主として、プレテンション方式により製作されたＴ型のコンクリート製の桁である。プレキャスト部材５は、プレテンション方式に限らず、ポストテンション方式により製作されてもよい。プレキャスト部材５は、鉄筋コンクリート、又は無筋コンクリート等により製作されてもよい。プレキャスト部材５は、断面形状もＴ型の物に限られず、断面ロの字の中空状の物や他の形状であっても構わない。 The precast member 5 is mainly a T-shaped concrete girder manufactured by a pretension method. The precast member 5 is not limited to the pretension method, and may be manufactured by a post tension method. The precast member 5 may be made of reinforced concrete, unreinforced concrete, or the like. The precast member 5 is not limited to a T-shaped cross-sectional shape, and may be a hollow shape having a square cross section or other shapes.

プレキャスト部材５は、図１に示すように、主桁の上フランジに、その長手方向である橋軸方向Ｘに平行にして形成される側面５１と、側面５１の上端側に連続して平面状に形成される上面部５２と、側面５１の下端側に連続して形成される下面部５３とを有する。 As shown in FIG. 1, the precast member 5 has a side surface 51 formed parallel to the bridge axis direction X, which is the longitudinal direction, on the upper flange of the main girder, and a flat surface continuously from the upper end side of the side surface 51. And a lower surface portion 53 formed continuously on the lower end side of the side surface 51.

一のプレキャスト部材５の側面５１は、図２（ａ）に示すように、下方から上方に向かうに従って、隣り合う他のプレキャスト部材５の側面５１から遠ざかるように傾斜して形成される。一のプレキャスト部材５の側面５１は、隣り合う他のプレキャスト部材５の側面５１との下端の間隔である配置間隔Ｐだけ離間して設けられる。配置間隔Ｐは、プレキャスト部材５の幅方向である橋幅方向Ｚにおける、一のプレキャスト部材５の側面５１の下端と隣り合う他のプレキャスト部材５の側面５１の下端との間隔である。 As shown in FIG. 2A, the side surface 51 of one precast member 5 is formed so as to be inclined away from the side surface 51 of another adjacent precast member 5 as it goes upward from below. The side surface 51 of one precast member 5 is provided apart from the side surface 51 of another adjacent precast member 5 by an arrangement interval P that is the distance between the lower ends. The arrangement interval P is an interval between the lower end of the side surface 51 of one precast member 5 and the lower end of the side surface 51 of another adjacent precast member 5 in the bridge width direction Z that is the width direction of the precast member 5.

間詰め部６は、図２（ａ）に示すように、一のプレキャスト部材５の側面５１と隣り合う他のプレキャスト部材５の側面５１との間に形成される。間詰め部６は、図２（ｂ）に示すように、上方から経時硬化性材８が埋め込まれる。間詰め部６は、鉄筋が配設される場合もあるが、図示は省略している。 As shown in FIG. 2A, the padding portion 6 is formed between a side surface 51 of one precast member 5 and a side surface 51 of another precast member 5 adjacent thereto. As shown in FIG. 2 (b), the time-stamping portion 6 is embedded with a time-curable material 8 from above. Although the reinforcing portion 6 may be provided with the reinforcing portion 6, the illustration is omitted.

経時硬化性材８は、例えば、コンクリート、モルタル等といった水和反応によって硬化するもの等、一定時間が経過すると硬化する材料である。 The time-curable material 8 is a material that hardens after a certain period of time, such as a material that hardens by a hydration reaction such as concrete or mortar.

埋設型枠１は、図４に示すように、板状に形成される底面部材２と、底面部材２の幅方向の両端に連続して設けられる一対の側面部材３と、一対の側面部材３の間に形成される複数のリブ部材４とを備える。 As shown in FIG. 4, the embedded mold 1 includes a bottom member 2 formed in a plate shape, a pair of side members 3 provided continuously at both ends in the width direction of the bottom member 2, and a pair of side members 3. And a plurality of rib members 4 formed therebetween.

底面部材２は、所定の厚みを有して、平面状に形成される。底面部材２は、その長手方向が橋軸方向Ｘに向けて、直線状に延びて形成される。底面部材２は、平面状に限らず、その上面に経時硬化性材８との付着を高めるための凹凸が設けられるような形状でもよい。 The bottom member 2 has a predetermined thickness and is formed in a planar shape. The bottom member 2 is formed so that its longitudinal direction extends linearly in the bridge axis direction X. The bottom surface member 2 is not limited to a planar shape, and may have a shape in which unevenness for enhancing adhesion to the time-curable material 8 is provided on the top surface.

底面部材２は、図６に示すように、上方から見た場合、長方形状に形成される。底面部材２は、長方形状に限らず、正方形状や平行四辺形状等に形成されてもよい。また、底面部材２は、上方から見た場合、その長手方向の両端の形状が、直線状に限らず、波形状や凹凸形状などの如何なる形状を有していてもよい。 As shown in FIG. 6, the bottom member 2 is formed in a rectangular shape when viewed from above. The bottom member 2 is not limited to a rectangular shape, and may be formed in a square shape, a parallelogram shape, or the like. Further, when viewed from above, the bottom member 2 is not limited to a linear shape at both ends in the longitudinal direction, and may have any shape such as a wave shape or an uneven shape.

底面部材２は、図４に示すように、その幅方向の両端から上方に向け一対の側面部材３が連続して設けられる。底面部材２は、上方にリブ部材４が間隔を空けて複数設けられる。底面部材２は、その長手方向の両端に、他の埋設型枠１と連結可能な底面連結部２１を有する。 As shown in FIG. 4, the bottom member 2 is continuously provided with a pair of side members 3 from both ends in the width direction upward. The bottom member 2 is provided with a plurality of rib members 4 at an upper interval. The bottom surface member 2 has bottom surface coupling portions 21 that can be coupled to other embedded molds 1 at both ends in the longitudinal direction.

底面部材２は、図２（ａ）に示すように、その幅方向における寸法が幅寸法Ｗ１で形成される。底面部材２は、間詰め部６の下端に略水平に位置するように設けられる。底面部材２は、その幅方向の両端が一のプレキャスト部材５の側面５１と隣り合う他のプレキャスト部材５の側面５１とに係止されて設けられる。 As shown in FIG. 2A, the bottom member 2 is formed with a width dimension W1 in the width direction. The bottom member 2 is provided at the lower end of the padding portion 6 so as to be positioned substantially horizontally. The bottom member 2 is provided with both ends in the width direction engaged with the side surface 51 of one precast member 5 and the side surface 51 of another precast member 5 adjacent thereto.

底面連結部２１は、図５（ａ）に示すように、他の埋設型枠１に形成される底面連結部２１と連結可能な構造で形成される。底面連結部２１は、図６に示すように、底面部材２の長手方向の一方の側端を底面側端２ａとしたとき、他方の側端が底面側端２ｂとなる。 As shown in FIG. 5A, the bottom surface connecting portion 21 is formed with a structure that can be connected to the bottom surface connecting portion 21 formed in another embedded mold 1. As shown in FIG. 6, when one side end of the bottom surface member 2 in the longitudinal direction is a bottom surface side end 2 a, the other side end of the bottom surface connecting portion 21 is a bottom surface side end 2 b.

底面連結部２１は、図４に示すように、一方の底面側端２ａに所定の厚みを有して突設される底面突片２２が形成され、他方の底面側端２ｂに他の埋設型枠１に形成される底面突片２２を挿通させ、嵌合させる底面凹部２３が形成される。 As shown in FIG. 4, the bottom surface connecting portion 21 is formed with a bottom surface protruding piece 22 that protrudes with a predetermined thickness on one bottom surface side end 2a, and another embedded mold on the other bottom surface side end 2b. A bottom surface recess 23 is formed through which the bottom surface protruding piece 22 formed in the frame 1 is inserted and fitted.

底面突片２２は、一方の底面側端２ａに、複数形成される。底面突片２２は、基端側が底面側端２ａで固定される。底面突片２２は、底面部材２の長手方向に向けて延びて略水平に形成される。底面突片２２は、これに限らず、単数で形成されてもよい。 A plurality of bottom surface protruding pieces 22 are formed at one bottom surface side end 2a. The base end side of the bottom surface protruding piece 22 is fixed at the bottom surface side end 2a. The bottom protrusion 22 extends in the longitudinal direction of the bottom member 2 and is formed substantially horizontally. The bottom protrusion 22 is not limited to this, and may be formed as a single piece.

底面突片２２は、板状に形成され、上方から見た場合、四角形状で形成される。底面突片２２は、底面凹部２３に挿通させやすくさせるために先端側が基端側よりも狭窄して形成される。底面突片２２は、図６に示すように、上方から見て、台形状に形成される。底面突片２２は、これに限らず、三角形状で形成されてもよい。底面突片２２は、これに限らず、長方形状や正方形状等に形成されてもよい。 The bottom protrusion 22 is formed in a plate shape, and is formed in a square shape when viewed from above. The bottom protrusion 22 is formed such that the distal end side is narrower than the proximal end side so that the bottom protrusion 22 can be easily inserted into the bottom recess 23. As shown in FIG. 6, the bottom protrusion 22 is formed in a trapezoidal shape when viewed from above. The bottom protrusion 22 is not limited to this, and may be formed in a triangular shape. The bottom protrusion 22 is not limited to this, and may be formed in a rectangular shape, a square shape, or the like.

底面凹部２３は、図５（ａ）に示すように、他方の底面側端２ｂに、複数形成される。底面凹部２３は、他の埋設型枠１に形成される底面突片２２と向かい合う位置に、底面突片２２と同数に形成される。底面凹部２３は、これに限らず、単数で形成されてもよい。 As shown in FIG. 5A, a plurality of bottom surface recesses 23 are formed on the other bottom surface side end 2b. The bottom surface recesses 23 are formed in the same number as the bottom surface projection pieces 22 at positions facing the bottom surface projection pieces 22 formed in the other embedded molds 1. The bottom recess 23 is not limited to this, and may be formed by a single number.

底面凹部２３は、底面部材２の幅方向における断面内に形成され、底面部材２の上面及び下面とで挟まれて形成される。底面凹部２３は、他の底面部材２の底面突片２２が挿通可能な空間で形成され、図５（ｂ）に示すように、嵌合される。 The bottom surface recess 23 is formed in the cross section of the bottom surface member 2 in the width direction, and is formed by being sandwiched between the top surface and the bottom surface of the bottom surface member 2. The bottom surface recess 23 is formed in a space through which the bottom surface protruding piece 22 of another bottom surface member 2 can be inserted, and is fitted as shown in FIG.

底面凹部２３は、図６に示すように、上方から見た場合、四角形状の空間で形成され、所定の厚みを有して突設された底面突片２２より大きく形成される。底面凹部２３は、他方の底面側端２ｂから一方の底面側端２ａに向けて、狭窄するように形成された台形状の空間である。底面凹部２３は、これに限らず、底面突片２２の形状に合わせて如何なる形状を有していてもよい。 As shown in FIG. 6, the bottom surface recess 23 is formed in a rectangular space when viewed from above, and is formed larger than the bottom surface protruding piece 22 protruding with a predetermined thickness. The bottom surface recess 23 is a trapezoidal space formed so as to narrow from the other bottom surface side end 2b toward the one bottom surface side end 2a. The bottom recess 23 is not limited to this, and may have any shape according to the shape of the bottom protrusion 22.

幅寸法Ｗ１は、図２（ａ）に示すように、一のプレキャスト部材５の側面５１と隣り合う他のプレキャスト部材５の側面５１との間隔である配置間隔Ｐと略同一で形成される。 As shown in FIG. 2A, the width dimension W <b> 1 is formed to be substantially the same as the arrangement interval P that is the interval between the side surface 51 of one precast member 5 and the side surface 51 of another precast member 5 adjacent thereto.

一対の側面部材３は、上方に向け互いに拡がるように傾斜して形成される。一対の側面部材３は、その下端側が底面部材２の幅方向の両端から連続して設けられる。一対の側面部材３は、底面部材２の幅方向に向けてリブ部材４が連続して設けられる。一対の側面部材３は、底面部材２の幅方向において、上端が幅寸法Ｗ１以上となるような離間距離Ｗ２だけ離間されて形成される。 The pair of side surface members 3 are formed to be inclined so as to expand toward each other. The pair of side surface members 3 are provided such that the lower end side is continuously provided from both ends in the width direction of the bottom surface member 2. The pair of side members 3 are provided with rib members 4 continuously in the width direction of the bottom member 2. The pair of side surface members 3 are formed so as to be separated from each other by a separation distance W2 such that the upper end is equal to or greater than the width dimension W1 in the width direction of the bottom surface member 2.

各側面部材３は、プレキャスト部材５の側面５１の勾配に沿うように傾斜して形成される。各側面部材３は、プレキャスト部材５の側面５１に当接されるようにして設けられる。各側面部材３は、プレキャスト部材５の側面５１と当接する面に止水性を有する接着剤９が介装される。 Each side member 3 is formed to be inclined along the gradient of the side surface 51 of the precast member 5. Each side member 3 is provided so as to contact the side surface 51 of the precast member 5. Each side member 3 is provided with an adhesive 9 having water-stopping properties on the surface that contacts the side surface 51 of the precast member 5.

各側面部材３は、図４に示すように、長手方向の両端に、他の埋設型枠１と連結可能な側面連結部３１を有する。各側面部材３は、所定の厚みを有した板状に形成される。各側面部材３は、底面部材２の長手方向に向けて延びて形成される。各側面部材３は、経時硬化性材８と接触する面に、経時硬化性材８との付着を高めるための凹凸が設けられるような形状で形成されてもよい。 As shown in FIG. 4, each side member 3 has side connection portions 31 that can be connected to other embedded molds 1 at both ends in the longitudinal direction. Each side member 3 is formed in a plate shape having a predetermined thickness. Each side member 3 is formed extending in the longitudinal direction of the bottom member 2. Each side member 3 may be formed in such a shape that unevenness for enhancing adhesion to the time-curable material 8 is provided on the surface in contact with the time-curable material 8.

側面連結部３１は、図５（ａ）に示すように、他の埋設型枠１に形成される側面連結部３１と連結可能な構造で形成される。側面連結部３１は、図６に示すように、側面部材３の長手方向の一方の側端を側面側端３ａとしたとき、他方の側端が側面側端３ｂとなる。 As shown in FIG. 5A, the side surface connection portion 31 is formed in a structure that can be connected to the side surface connection portion 31 formed in another embedded mold 1. As shown in FIG. 6, when one side end in the longitudinal direction of the side surface member 3 is the side surface side end 3 a, the other side end is the side surface side end 3 b.

側面連結部３１は、図４に示すように、一方の側面側端３ａに所定の厚みを有して突設される側面突片３２が形成され、他方の側面側端３ｂに他の埋設型枠１に形成される側面突片３２を挿通させ、嵌合させる側面凹部３３が形成される。 As shown in FIG. 4, the side surface connecting portion 31 is formed with a side surface protruding piece 32 that protrudes from one side surface side end 3 a with a predetermined thickness, and the other side surface side end 3 b has another embedded type. A side recess 33 is formed through which the side protrusion 32 formed on the frame 1 is inserted and fitted.

側面突片３２は、一方の側面側端３ａに、各々単数に形成される。側面突片３２は、基端側が側面側端３ａで固定される。側面突片３２は、側面部材３の長手方向に向けて延びて形成される。側面突片３２は、一方の側面側端３ａに、複数に形成されてもよい。 Each of the side protrusions 32 is formed singly at one side surface end 3a. As for the side surface protrusion 32, the base end side is fixed by the side surface side end 3a. The side protrusions 32 are formed extending in the longitudinal direction of the side member 3. A plurality of side protrusions 32 may be formed on one side surface end 3a.

側面突片３２は、板状に形成された四角形状で形成される。側面突片３２は、側面凹部３３に挿通させやすくさせるために先端側が基端側よりも狭窄して形成される。側面突片３２は、台形状に形成される。側面突片３２は、これに限らず、三角形状で形成されてもよい。側面突片３２は、これに限らず、長方形状や正方形状等に形成されてもよい。 The side protrusions 32 are formed in a square shape formed in a plate shape. The side protrusion 32 is formed such that the distal end side is narrower than the proximal end side so that the side protrusion 32 can be easily inserted into the side recess 33. The side protrusion 32 is formed in a trapezoidal shape. The side protrusion 32 is not limited to this, and may be formed in a triangular shape. The side protrusion 32 is not limited to this, and may be formed in a rectangular shape or a square shape.

側面凹部３３は、図５（ａ）に示すように、他方の側面側端３ｂに、各単数に形成される。側面凹部３３は、他の埋設型枠１に形成される側面突片３２と向かい合う位置に、側面突片３２と同数に形成される。側面凹部３３は、これに限らず、他方の側面側端３ｂに、複数形成されてもよい。 As shown in FIG. 5 (a), the side recess 33 is formed singularly at the other side surface end 3b. The side recesses 33 are formed in the same number as the side protrusions 32 at positions facing the side protrusions 32 formed in the other embedded mold 1. The side recess 33 is not limited to this, and a plurality of side recesses 33 may be formed at the other side end 3b.

側面凹部３３は、側面部材３の幅方向における断面内に形成され、側面部材３の両端面に挟まれて形成される。側面凹部３３は、他の側面部材３の側面突片３２が挿通可能な空間で形成され、図５（ｂ）に示すように、嵌合される。 The side recesses 33 are formed in the cross section of the side member 3 in the width direction, and are formed between both end surfaces of the side member 3. The side recess 33 is formed in a space through which the side protrusion 32 of the other side member 3 can be inserted, and is fitted as shown in FIG.

側面凹部３３は、図６に示すように、四角形状の空間で形成され、所定の厚みを有して突設された側面突片３２より大きく形成される。側面凹部３３は、他方の側面側端３ｂから一方の側面側端３ａに向けて、狭窄するように形成された台形状の空間である。側面凹部３３は、これに限らず、側面突片３２の形状に合わせて如何なる形状を有していてもよい。 As shown in FIG. 6, the side recess 33 is formed in a rectangular space and is formed to be larger than the side protrusion 32 protruding with a predetermined thickness. The side surface recess 33 is a trapezoidal space formed so as to narrow from the other side surface side end 3b toward the one side surface side end 3a. The side recess 33 is not limited to this, and may have any shape according to the shape of the side protrusion 32.

接着剤９は、主として、ブチルゴム系接着剤が用いられる。接着剤９は、これに限らず、アクリル系接着剤、エポキシ系接着剤、ウレタン系接着剤等が用いられてもよい。 As the adhesive 9, a butyl rubber adhesive is mainly used. The adhesive 9 is not limited to this, and an acrylic adhesive, an epoxy adhesive, a urethane adhesive, or the like may be used.

接着剤９は、図２（ａ）に示すように、各側面部材３において、プレキャスト部材５の側面５１と当接する面に介装され、プレキャスト部材５の側面５１と接着される。接着剤９は、プレキャスト部材５の側面５１と側面部材３との間に間隙を生じることなく接着される。 As shown in FIG. 2A, the adhesive 9 is interposed between the side members 3 of the side members 3, which are in contact with the side surfaces 51 of the precast member 5, and is bonded to the side surfaces 51 of the precast member 5. The adhesive 9 is bonded without causing a gap between the side surface 51 of the precast member 5 and the side surface member 3.

接着剤９は、図６に示すように、帯状に形成される両面テープであり、側面部材３に容易に介装できるものとなる。接着剤９は、各側面部材３の長手方向に沿って、一方の側面側端３ａから他方の側面側端３ｂまで連続して介装され、図６中の破線で表される。 As shown in FIG. 6, the adhesive 9 is a double-sided tape formed in a band shape, and can be easily interposed in the side member 3. The adhesive 9 is continuously inserted from one side surface end 3a to the other side surface end 3b along the longitudinal direction of each side member 3, and is represented by a broken line in FIG.

接着剤９は、テープ状に限らず、ゲル状で形成されていてもよく、一方の側面側端３ａから他方の側面側端３ｂまで連続して塗布される。 The adhesive 9 is not limited to a tape shape, and may be formed in a gel shape, and is continuously applied from one side surface side end 3a to the other side surface side end 3b.

離間距離Ｗ２は、図２（ａ）に示すように、底面部材２の幅方向における、一対の側面部材３の上端の間隔である。離間距離Ｗ２は、一のプレキャスト部材５の側面５１と隣り合う他のプレキャスト部材５の側面５１との配置間隔Ｐよりも大きく形成される。 As shown in FIG. 2A, the separation distance W <b> 2 is the distance between the upper ends of the pair of side surface members 3 in the width direction of the bottom surface member 2. The separation distance W <b> 2 is formed larger than the arrangement interval P between the side surface 51 of one precast member 5 and the side surface 51 of another precast member 5 adjacent thereto.

リブ部材４は、その両端が一対の側面部材３に各々連続して設けられる。リブ部材４は、一方の側面部材３から他方の側面部材３に向けて延びて形成される。リブ部材４は、底面部材２から上方に向けて略鉛直に延びて連続して形成される。 Both ends of the rib member 4 are continuously provided on the pair of side members 3. The rib member 4 is formed to extend from one side member 3 toward the other side member 3. The rib member 4 is formed continuously from the bottom member 2 so as to extend substantially vertically.

リブ部材４は、図６に示すように、所定の厚みを有した板状で形成される。リブ部材４は、底面部材２の幅方向に向けて形成される。リブ部材４は、底面部材２の長手方向に間隔を空けて複数設けられる。 As shown in FIG. 6, the rib member 4 is formed in a plate shape having a predetermined thickness. The rib member 4 is formed toward the width direction of the bottom surface member 2. A plurality of rib members 4 are provided at intervals in the longitudinal direction of the bottom surface member 2.

リブ部材４は、図２（ｂ）に示すように、経時硬化性材８と一体化させるための鋼材８１が挿通される挿通孔４１を有する。リブ部材４は、図７（ａ）に示すように、断面台形状に形成され、挿通孔４１が１箇所に形成される。リブ部材４は、これに限らず、図７（ｂ）に示すように、挿通孔４１の構成が省略されてもよい。リブ部材４は、これに限らず、図７（ｃ）に示すように、底面部材２と離間して設けられ、一対の側面部材３の間に連続して設けられてもよい。 As shown in FIG. 2B, the rib member 4 has an insertion hole 41 through which a steel material 81 for integration with the time-curable material 8 is inserted. As shown in FIG. 7A, the rib member 4 is formed in a trapezoidal cross section, and the insertion hole 41 is formed in one place. The rib member 4 is not limited to this, and the configuration of the insertion hole 41 may be omitted as shown in FIG. The rib member 4 is not limited thereto, and may be provided separately from the bottom surface member 2 and continuously provided between the pair of side surface members 3 as shown in FIG.

挿通孔４１は、図７（ａ）に示すように、断面円形状に形成され、直径が鋼材８１よりも大きく形成される。挿通孔４１は、リブ部材４の幅方向の略中央に、１箇所に設けられる。挿通孔４１は、リブ部材４に１箇所に限らず、複数設けられてもよい。挿通孔４１は、図８（ａ）に示すように、円柱状の鋼材８１が貫通可能なように形成される。 As shown in FIG. 7A, the insertion hole 41 is formed in a circular cross section and has a diameter larger than that of the steel material 81. The insertion hole 41 is provided at one location in the approximate center of the rib member 4 in the width direction. The insertion hole 41 is not limited to one location in the rib member 4, and a plurality of insertion holes 41 may be provided. As shown in FIG. 8A, the insertion hole 41 is formed so that a columnar steel material 81 can pass therethrough.

鋼材８１は、リブ部材４に設けられた挿通孔４１に貫通するようにして設けられる。鋼材８１は、主として、異形棒鋼や丸鋼等が用いられる。鋼材８１は、図８（ｂ）に示すように、Ｕ字形状に形成されていてもよい。鋼材８１の構成は、省略するようにしてもよい。 The steel material 81 is provided so as to penetrate the insertion hole 41 provided in the rib member 4. As the steel material 81, a deformed bar steel, a round steel or the like is mainly used. The steel material 81 may be formed in a U shape as shown in FIG. The configuration of the steel material 81 may be omitted.

本発明の実施形態に係る埋設型枠１は、図９に示すように、間隔を空けて並設された複数のプレキャスト部材５の間に設けられる間詰め部６に経時硬化性材８を埋めるために用いられるものである。 As shown in FIG. 9, the embedding formwork 1 according to the embodiment of the present invention embeds a time-curable material 8 in a stuffing portion 6 provided between a plurality of precast members 5 arranged in parallel at intervals. It is used for this purpose.

埋設型枠１は、図２（ａ）に示すように、間詰め部６の下端に設置されるときに、四角形状の底面部材２を備えることによって、底面部材２の幅方向の両端が一のプレキャスト部材５の側面５１と隣り合う他のプレキャスト部材５の側面５１とに係止させることができる。 As shown in FIG. 2A, the embedded mold 1 is provided with a rectangular bottom surface member 2 when installed at the lower end of the padding portion 6, so that both ends of the bottom surface member 2 in the width direction are one. The side surface 51 of the other precast member 5 and the side surface 51 of another precast member 5 adjacent thereto can be locked.

また、埋設型枠１は、各側面部材３がプレキャスト部材５の側面５１の勾配に沿うように傾斜して形成されることによって、プレキャスト部材５の側面５１に当接することができる。 In addition, the embedded mold 1 can be in contact with the side surface 51 of the precast member 5 by forming each side surface member 3 so as to be inclined along the gradient of the side surface 51 of the precast member 5.

このため、埋設型枠１は、間詰め部６の下方に足場を設けることなく、プレキャスト部材５の上面部５２から容易に間詰め部６に取り付けることが可能となる。 For this reason, the embedded mold 1 can be easily attached to the filling portion 6 from the upper surface portion 52 of the precast member 5 without providing a scaffold below the filling portion 6.

埋設型枠１は、図１０（ａ）に示すように、配置間隔Ｐが幅寸法Ｗ１よりも小さくなる場合にも同様に、プレキャスト部材５の側面５１に底面部材２が係止され、側面部材３が当接することができる。 As shown in FIG. 10 (a), the embedded mold 1 has the bottom member 2 locked to the side surface 51 of the precast member 5 when the arrangement interval P is smaller than the width dimension W1. 3 can abut.

また、埋設型枠１は、図１０（ｂ）に示すように、配置間隔Ｐが幅寸法Ｗ１よりも大きくなる場合には、プレキャスト部材５の側面５１に底面部材２が係止されないものの、一対の側面部材３の上端の離間距離Ｗ２が、配置間隔Ｐよりも大きく形成されることによって、各側面部材３を当接させることができる。 Further, as shown in FIG. 10B, the embedded mold 1 has a pair of bottom members 2 that are not locked to the side surfaces 51 of the precast member 5 when the arrangement interval P is larger than the width dimension W1. By forming the separation distance W2 at the upper end of the side member 3 to be larger than the arrangement interval P, the side members 3 can be brought into contact with each other.

すなわち、埋設型枠１は、並列されたプレキャスト部材５の間隔が、施工誤差や設計により変更された場合であっても、底面部材２の幅寸法Ｗ１が異なる多数種の型枠を揃えなくとも、間詰め部６に容易に取り付けることが可能となる。 In other words, the embedded formwork 1 does not have to be provided with many kinds of formwork having different width dimensions W1 of the bottom face member 2 even when the interval between the parallel precast members 5 is changed due to construction error or design. It becomes possible to easily attach to the padding portion 6.

埋設型枠１は、図２（ｂ）に示すように、一対の側面部材３との間に形成される複数のリブ部材４とを備えることによって、一対の側面部材３の上端の離間距離Ｗ２が拘束され、リブ部材４を設けない構成よりも曲げ剛性を高めることができる。 As shown in FIG. 2B, the embedded mold 1 includes a plurality of rib members 4 formed between the pair of side members 3, so that the separation distance W <b> 2 between the upper ends of the pair of side members 3. Is restrained, and the bending rigidity can be increased as compared with the configuration in which the rib member 4 is not provided.

これにより、埋設型枠１は、上方から経時硬化性材８の荷重の作用を受けたときに、底面部材２が下方に向けて撓むような変形や、各側面部材３の上端が互いに近づくような変形を、リブ部材４を介して、抑えることができる。 As a result, the embedded mold 1 is deformed such that the bottom surface member 2 bends downward when subjected to the action of the load of the time-curable material 8 from above, or the upper ends of the side members 3 approach each other. Such deformation can be suppressed via the rib member 4.

このため、埋設型枠１は、プレキャスト部材５の側面５１に底面部材２が係止され、側面部材３が当接されるため、間詰め部６からの脱落を防止することが可能となる。 For this reason, since the bottom surface member 2 is locked to the side surface 51 of the precast member 5 and the side surface member 3 is brought into contact with the embedded mold 1, it is possible to prevent the embedded mold 1 from falling off from the padding portion 6.

また、埋設型枠１は、各側面部材３がプレキャスト部材５の側面５１に当接するため、プレキャスト部材５の側面５１との間に隙間を生じさせることを防止するものとなる。これにより、埋設型枠１は、経時硬化性材８が間詰め部６に埋め込まれるときに、下方へ漏出することを防止することが可能となる。 Moreover, since each side surface member 3 contacts the side surface 51 of the precast member 5, the embedded mold 1 prevents a gap from being formed between the side surface 51 of the precast member 5. Thereby, the embedded mold 1 can be prevented from leaking downward when the time-curable material 8 is embedded in the interstitial portion 6.

このため、埋設型枠１は、隙間から漏出した経時硬化性材８が硬化することによって引き起こされる景観上の悪化を防止でき、間詰め部６の下方から経時硬化性材８を除去するための足場を設ける労力の負担を軽減できる。 For this reason, the embedded mold 1 can prevent deterioration on the landscape caused by curing of the time-curable material 8 leaked from the gap, and removes the time-curable material 8 from below the filling portion 6. The burden of labor for establishing a scaffold can be reduced.

埋設型枠１は、図９に示すように、経時硬化性材８と一体化させるための鋼材８１が複数のリブ部材４の各々の挿通孔４１に挿通されることによって、経時硬化性材８が硬化したときに、リブ部材４が鋼材８１に固定されるため、間詰め部６からの脱落を防止することが可能となる。 As shown in FIG. 9, the embedded mold 1 has a steel material 81 to be integrated with the time-curable material 8 inserted into the insertion holes 41 of the plurality of rib members 4, whereby the time-curable material 8. Since the rib member 4 is fixed to the steel material 81 when is hardened, it is possible to prevent the rib member 4 from dropping off from the padding portion 6.

埋設型枠１は、図５（ａ）に示すように、一方の底面側端２ａに底面突片２２が形成され、他方の底面側端２ｂに底面突片２２より大きく形成される底面凹部２３が形成されるとともに、一方の側面側端３ａに側面突片３２が形成され、他方の側面側端３ｂに側面突片３２より大きく形成される側面凹部３３が形成されるものとなる。 As shown in FIG. 5 (a), the embedded mold 1 has a bottom surface protrusion 22 formed on one bottom surface side end 2a and a bottom surface recess 23 formed on the other bottom surface side end 2b larger than the bottom surface protrusion piece 22. Is formed, a side protrusion 32 is formed on one side surface end 3a, and a side recess 33 formed larger than the side protrusion 32 is formed on the other side surface end 3b.

特に、埋設型枠１は、底面突片２２及び側面突片３２が台形状に形成されることによって、他の埋設型枠１に形成される底面凹部２３及び側面凹部３３に挿通させやすくすることが可能となる。 In particular, the embedded mold 1 can be easily inserted into the bottom recess 23 and the side recess 33 formed in another embedded mold 1 by forming the bottom protrusion 22 and the side protrusion 32 in a trapezoidal shape. Is possible.

これにより、埋設型枠１は、図５（ｂ）に示すように、他の埋設型枠１と容易に嵌合可能なものとなるため、間詰め部６の橋軸方向Ｘの寸法に応じて適切な長さとなるように複数連結させた上で、間詰め部６に一括で取り付けが可能となる。 As a result, as shown in FIG. 5B, the embedded mold 1 can be easily fitted with other embedded molds 1, and therefore, according to the dimensions of the interspaced portion 6 in the bridge axis direction X. In addition, a plurality of pieces can be connected together so as to have an appropriate length, and can be attached to the stuffing portion 6 at a time.

埋設型枠１は、高密度樹脂材料が用いられることによって、上方から経時硬化性材８の荷重の作用を受けたときに、底面部材２が下方に向けて撓むような変形や、各側面部材３の上端が互いに近づくような変形を抑えることができる。 The embedded mold 1 is made of a high-density resin material, so that when the load of the time-curable material 8 is applied from above, deformation such that the bottom surface member 2 bends downward, and each side surface member Deformation such that the upper ends of 3 approach each other can be suppressed.

これにより、埋設型枠１は、プレキャスト部材５の側面５１に、底面部材２が係止され、一対の側面部材３が当接した状態を維持できるため、間詰め部６からの脱落を防止することが可能となる。 Thereby, since the bottom form member 2 is locked to the side surface 51 of the precast member 5 and the pair of side surface members 3 are in contact with each other, the embedded mold 1 can be prevented from falling off from the padding portion 6. It becomes possible.

埋設型枠１は、高密度樹脂材料が用いられることによって、鋼等の金属が用いられる場合よりも防錆性に優れるものとなる。 By using a high-density resin material, the embedded mold 1 is more excellent in rust prevention than when a metal such as steel is used.

埋設型枠１は、高密度樹脂材料が用いられることによって、長期間設置されたときに、鋼材８１に酸素や水などの腐食因子の侵入を減少でき、鋼材８１の腐食の発生を防止することができる。 By using a high-density resin material, the embedded mold 1 can reduce the intrusion of corrosion factors such as oxygen and water into the steel material 81 and prevent the steel material 81 from corroding when installed for a long period of time. Can do.

これにより、埋設型枠１は、鋼材８１の腐食生成物による体積膨張を防止でき、それに伴う経時硬化性材８の体積膨張を防止できるため、プレキャスト部材５の側面５１に底面部材２が係止され、各側面部材３が当接した状態を維持でき、間詰め部６からの脱落を防止することが可能となる。 Thereby, since the embedded formwork 1 can prevent the volume expansion by the corrosion product of the steel material 81 and can prevent the volume expansion of the time-hardening material 8 associated therewith, the bottom surface member 2 is locked to the side surface 51 of the precast member 5. Thus, it is possible to maintain the state in which the side members 3 are in contact with each other, and to prevent the side members 3 from falling off from the interstitial portion 6.

埋設型枠１は、図２（ｂ）に示すように、間詰め部６の下端に設置されるときに、各側面部材３のプレキャスト部材５と当接する面に止水性を有する接着剤９が介装されることによって、プレキャスト部材５の側面５１と接着されるため、間詰め部６からの脱落を防止することが可能となる。 As shown in FIG. 2 (b), when the embedded mold 1 is installed at the lower end of the padding portion 6, an adhesive 9 having a water-stopping property is provided on the surface of each side member 3 that contacts the precast member 5. By being interposed, it is bonded to the side surface 51 of the precast member 5, so that it is possible to prevent the dropout portion 6 from falling off.

また、埋設型枠１は、止水性を有する接着剤９が各側面部材３の長手方向に沿って、一方の側面側端３ａから他方の側面側端３ｂまで連続して介装されることによって、プレキャスト部材５との間に間隙を生じるのを防止できる。 Further, the embedded mold 1 is formed by continuously interposing a water-stopping adhesive 9 along the longitudinal direction of each side member 3 from one side end 3a to the other side end 3b. It is possible to prevent a gap from being formed with the precast member 5.

これにより、埋設型枠１は、経時硬化性材８が間詰め部６に埋め込まれるときに、下方へ漏出することを防止することが可能となる。このため、埋設型枠１は、隙間から漏出した経時硬化性材８が硬化することによって引き起こされる景観上の悪化を防止でき、間詰め部６の下方から経時硬化性材８を除去するための足場を設ける労力の負担を軽減できる。 Thereby, the embedded mold 1 can be prevented from leaking downward when the time-curable material 8 is embedded in the interstitial portion 6. For this reason, the embedded mold 1 can prevent deterioration on the landscape caused by curing of the time-curable material 8 leaked from the gap, and removes the time-curable material 8 from below the filling portion 6. The burden of labor for establishing a scaffold can be reduced.

また、埋設型枠１は、接着剤９がテープ状に形成されることによって、各側面部材３の長手方向に沿って、容易に介装することができ、施工時間を短縮することが可能となる。 Moreover, the embedded mold 1 can be easily interposed along the longitudinal direction of each side member 3 by forming the adhesive 9 in a tape shape, and the construction time can be shortened. Become.

例えば、本発明を適用した埋設型枠１は、図１１（ｂ）に示すように、中空床版橋桁からなる複数のプレキャスト部材５の間に設けられてもよい。このとき、一のプレキャスト部材５の側面５１は、下方から上方に向けて隣り合う他のプレキャスト部材５と間隔が遠ざかるように形成される傾斜部５４と、傾斜部５４の上端側に略鉛直に連続して形成される上端側鉛直壁５５と、傾斜部５４の下端側に略鉛直に連続して形成される下端側鉛直壁５６とを有する。埋設型枠１は、傾斜部５４及び上端側鉛直壁５５との間に形成される間詰め部６の下端を塞ぐようにして設けられる。 For example, the embedded form 1 to which the present invention is applied may be provided between a plurality of precast members 5 made of hollow floor slab bridge girders, as shown in FIG. At this time, the side surface 51 of one precast member 5 is substantially perpendicular to the inclined portion 54 formed so as to be spaced apart from the other precast members 5 adjacent from the lower side to the upper side, and to the upper end side of the inclined portion 54. It has the upper end side vertical wall 55 formed continuously, and the lower end side vertical wall 56 formed in the lower end side of the inclination part 54 continuously substantially perpendicularly. The embedded mold 1 is provided so as to close the lower end of the padding portion 6 formed between the inclined portion 54 and the upper end side vertical wall 55.

埋設型枠１は、傾斜部５４に底面部材２が係止され、側面部材３が当接するため、容易に取り付けることが可能となる。また、埋設型枠１は、一対の側面部材３の間に形成される複数のリブ部材４が設けられていることによって、上方から経時硬化性材８の荷重の作用を受けたときに、傾斜部５４に底面部材２が係止され、側面部材３が当接した状態を維持でき、間詰め部６からの脱落を防止することが可能となる。 Since the bottom surface member 2 is locked to the inclined portion 54 and the side surface member 3 is in contact with the embedded mold 1, the embedded mold 1 can be easily attached. Further, the embedded mold 1 is provided with a plurality of rib members 4 formed between the pair of side members 3 so that it is inclined when subjected to the load of the time-curable material 8 from above. The bottom surface member 2 is locked to the portion 54 and the side surface member 3 can be kept in contact with the portion 54, so that it is possible to prevent dropping from the interstitial portion 6.

例えば、本発明を適用した埋設型枠１は、図１１（ｃ）に示すように、床版からなる複数のプレキャスト部材５の間に設けられてもよい。 For example, the embedded form 1 to which the present invention is applied may be provided between a plurality of precast members 5 made of a floor slab, as shown in FIG.

このとき、埋設型枠１は、プレキャスト部材５の側面５１に底面部材２が係止され、側面部材３が当接されるため、容易に取り付けることが可能となる。また、埋設型枠１は、一対の側面部材３の間に形成される複数のリブ部材４が設けられていることによって、上方から経時硬化性材８の荷重の作用を受けたときに、プレキャスト部材５の側面５１に底面部材２が係止され、側面部材３が当接した状態を維持でき、脱落を防止することが可能となる。 At this time, the embedded mold 1 can be easily attached because the bottom surface member 2 is locked to the side surface 51 of the precast member 5 and the side surface member 3 is brought into contact therewith. Further, the embedded mold 1 is provided with a plurality of rib members 4 formed between the pair of side surface members 3, so that it is precast when subjected to the load of the time-curable material 8 from above. The bottom surface member 2 is locked to the side surface 51 of the member 5 so that the state in which the side surface member 3 is in contact can be maintained, and the dropout can be prevented.

次に、本発明を適用した埋設型枠１の第２実施形態について説明する。なお、上述した構成要素と同一の構成要素については、同一の符号を付すことにより以下での説明を省略する。 Next, a second embodiment of the embedded mold 1 to which the present invention is applied will be described. In addition, about the component same as the component mentioned above, the description below is abbreviate | omitted by attaching | subjecting the same code | symbol.

本発明を適用した第２実施形態における埋設型枠１は、図１２に示すように、特に、一対の側面部材３が上方に向け互いに拡がるように傾斜して形成され、リブ部材４が挿通孔４１の構成を省略し、鋼材８１の構成を省略したものとなる。 As shown in FIG. 12, the embedded form 1 in the second embodiment to which the present invention is applied is formed so as to be inclined so that the pair of side surface members 3 spreads upward, and the rib member 4 is inserted into the insertion hole. The configuration of 41 is omitted, and the configuration of the steel material 81 is omitted.

このとき、埋設型枠１は、プレキャスト部材５の側面５１に底面部材２が係止され、側面部材３が当接されるため、容易に取り付けることが可能となる。 At this time, the embedded mold 1 can be easily attached because the bottom surface member 2 is locked to the side surface 51 of the precast member 5 and the side surface member 3 is brought into contact therewith.

また、埋設型枠１は、挿通孔４１の構成が省略されることによって、経時硬化性材８と一体化される鋼材８１の構成も省略されるものとなる。しかし、埋設型枠１は、経時硬化性材８が硬化したときであっても、プレキャスト部材５の側面５１に底面部材２が係止され、側面部材３が当接した状態を維持できるため、鋼材８１の構成を省略したとしても、下方への脱落を防止することが十分に可能となる。 Moreover, the structure of the steel material 81 integrated with the time-hardening material 8 is also omitted in the embedded mold 1 by omitting the structure of the insertion hole 41. However, since the embedded mold 1 can maintain the state in which the bottom surface member 2 is locked to the side surface 51 of the precast member 5 and the side surface member 3 is in contact even when the time-curable material 8 is cured, Even if the structure of the steel material 81 is omitted, it is possible to prevent the downward drop.

従って、本発明を適用した埋設型枠１は、第２実施形態においても、プレキャスト部材５の間に形成される間詰め部６に、足場を設けることなく容易に取り付けができ、間詰め部６からの脱落を防止することが可能となる。 Therefore, the embedded form 1 to which the present invention is applied can be easily attached to the padding portion 6 formed between the precast members 5 without providing a scaffold in the second embodiment. It is possible to prevent the drop-off from.

次に、本発明を適用した埋設型枠１の第３実施形態について説明する。なお、上述した構成要素と同一の構成要素については、同一の符号を付すことにより以下での説明を省略する。 Next, a third embodiment of the embedded mold 1 to which the present invention is applied will be described. In addition, about the component same as the component mentioned above, the description below is abbreviate | omitted by attaching | subjecting the same code | symbol.

本発明を適用した第３実施形態における埋設型枠１は、図１３に示すように、特に、底面部材２の幅方向の両端に連続して設けられる一対の側面部材３が、プレキャスト部材５の側面５１と離間させて形成されるものとなる。 As shown in FIG. 13, the embedded mold 1 according to the third embodiment to which the present invention is applied has a pair of side members 3 provided continuously at both ends in the width direction of the bottom member 2, and It is formed apart from the side surface 51.

このとき、埋設型枠１は、側面部材３がプレキャスト部材５の側面５１と離間させることで当接されないものの、底面部材２が係止されるため、容易に取り付けることが可能となる。 At this time, the embedded form 1 can be easily attached because the bottom surface member 2 is locked, although the side surface member 3 is not brought into contact with the side surface 51 of the precast member 5 while being separated.

また、埋設型枠１は、一対の側面部材３の間に形成される複数のリブ部材４が設けられていることによって、上方から経時硬化性材８の荷重の作用を受けたときに、底面部材２が下方に向けて撓むような変形を抑えられるため、プレキャスト部材５の側面５１に係止させた状態を維持することが可能となる。 Further, the embedded mold 1 is provided with a plurality of rib members 4 formed between the pair of side surface members 3, so that when the load of the time-curable material 8 is applied from above, Since the deformation that the member 2 bends downward is suppressed, it is possible to maintain the state of being locked to the side surface 51 of the precast member 5.

特に、埋設型枠１は、側面部材３が底面部材２の幅方向の両端から上方に向け略垂直に形成される場合であっても、リブ部材４が備えられていることによって一対の側面部材３の上端の離間距離Ｗ２が拘束されるものとなる。このため、埋設型枠１は、上方から経時硬化性材８の荷重の作用により、底面部材２がプレキャスト部材５の側面５１の下方へ微動した場合であっても、側面部材３がプレキャスト部材５の側面５１に係止されるため、間詰め部６からの脱落を防止することが可能となる。 In particular, the embedded mold 1 has a pair of side members by providing the rib members 4 even when the side members 3 are formed substantially vertically upward from both ends in the width direction of the bottom member 2. 3 is restricted. For this reason, in the embedded form 1, even when the bottom surface member 2 slightly moves below the side surface 51 of the precast member 5 due to the action of the load of the time-curable material 8 from above, the side surface member 3 becomes the precast member 5. Since it is latched by the side surface 51, it is possible to prevent the drop-off from the padding portion 6.

また、埋設型枠１は、経時硬化性材８と一体化させるための鋼材８１が複数のリブ部材４の各々の挿通孔４１に挿通されることによって、経時硬化性材８が硬化したとき、リブ部材４が鋼材８１に固定されるため、間詰め部６からの脱落を防止することが可能となる。 Further, when the time-curable material 8 is cured by inserting the steel material 81 to be integrated with the time-curable material 8 through the insertion holes 41 of the plurality of rib members 4, the embedded mold 1 is Since the rib member 4 is fixed to the steel material 81, it is possible to prevent the rib member 4 from coming off from the padding portion 6.

従って、本発明を適用した埋設型枠１は、第３実施形態においても、プレキャスト部材５の間に形成される間詰め部６に、足場を設けることなく容易に取り付けができ、間詰め部６からの脱落を防止することが可能となる。 Therefore, the embedded form 1 to which the present invention is applied can be easily attached to the padding portion 6 formed between the precast members 5 without providing a scaffold in the third embodiment. It is possible to prevent the drop-off from.

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ものである。 As mentioned above, although the example of embodiment of this invention was demonstrated in detail, all the embodiment mentioned above showed only the example of actualization in implementing this invention, and these are the technical aspects of this invention. The range should not be construed as limiting.

１：埋設型枠
２：底面部材
２ａ：一方の底面側端
２ｂ：他方の底面側端
２１：底面連結部
２２：底面突片
２３：底面凹部
３：側面部材
３ａ：一方の側面側端
３ｂ：他方の側面側端
３１：側面連結部
３２：側面突片
３３：側面凹部
４：リブ部材
４１：挿通孔
５：プレキャスト部材
５１：側面
５２：上面部
５３：下面部
５４：傾斜部
５５：上端側鉛直壁
５６：下端側鉛直壁
６：間詰め部
８：経時硬化性材
８１：鋼材
９：接着剤
Ｐ：配置間隔
Ｗ１：幅寸法
Ｗ２：離間距離
Ｘ：橋軸方向
Ｙ：高さ方向
Ｚ：橋幅方向

1: Embedded formwork 2: Bottom member 2a: One bottom surface side edge 2b: The other bottom surface side edge 21: Bottom surface connection part 22: Bottom surface protrusion 23: Bottom surface recess 3: Side surface member 3a: One side surface edge 3b: Other side surface end 31: Side surface connection portion 32: Side surface protrusion 33: Side surface recess 4: Rib member 41: Insert hole 5: Precast member 51: Side surface 52: Upper surface portion 53: Lower surface portion 54: Inclined portion 55: Upper end side Vertical wall 56: Bottom side vertical wall 6: Filling portion 8: Temporarily hardened material 81: Steel material 9: Adhesive P: Arrangement interval W1: Width dimension W2: Separation distance X: Bridge axis direction Y: Height direction Z: Bridge width direction

Claims

An embedding formwork used to embed a time-curable material in a filling portion formed between a plurality of precast members arranged in parallel at intervals,
A bottom member formed in a plate shape, a pair of side members provided continuously at both ends in the width direction of the bottom member, and a plurality of rib members formed between the pair of side members. Characteristic buried formwork.

2. The embedded formwork according to claim 1, wherein the pair of side surface members are formed to be inclined so as to expand toward each other upward.

The embedded formwork according to claim 1 or 2, wherein the rib member has an insertion hole through which a steel material to be integrated with the time-hardening material is inserted.

The bottom surface member has a bottom surface coupling portion that can be coupled to another embedded formwork at both ends in the longitudinal direction,
The embedded mold according to any one of claims 1 to 3, wherein each of the side members has a side connecting portion that can be connected to another embedded mold at both ends in the longitudinal direction.

The embedded formwork according to any one of claims 1 to 4, wherein a high-density resin material is used for the embedded formwork.

The embedded mold according to any one of claims 1 to 5, wherein each of the side members is provided with an adhesive having water-stopping properties on a surface that comes into contact with the precast member.