JPH0144683Y2 - - Google Patents
Info
- Publication number
- JPH0144683Y2 JPH0144683Y2 JP7097984U JP7097984U JPH0144683Y2 JP H0144683 Y2 JPH0144683 Y2 JP H0144683Y2 JP 7097984 U JP7097984 U JP 7097984U JP 7097984 U JP7097984 U JP 7097984U JP H0144683 Y2 JPH0144683 Y2 JP H0144683Y2
- Authority
- JP
- Japan
- Prior art keywords
- formwork
- synthetic resin
- convex
- watsuful
- ceiling
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000009415 formwork Methods 0.000 claims description 57
- 238000010276 construction Methods 0.000 claims description 14
- 229920003002 synthetic resin Polymers 0.000 claims description 11
- 239000000057 synthetic resin Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 239000004567 concrete Substances 0.000 description 10
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004793 Polystyrene Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 229920006328 Styrofoam Polymers 0.000 description 2
- 239000004794 expanded polystyrene Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- -1 for example Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000008261 styrofoam Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
【考案の詳細な説明】
この考案は、ワツフルスラブ工法に好適に使用
される型枠の改良に関するものである。[Detailed description of the invention] This invention relates to an improvement of a formwork suitably used in the Watsuful slab construction method.
近時、鉄筋コンクリート建築の内装天井形式と
して、格縁（リブ）を格子形に組んで仕上げた格
天井が採用されるに至つている。この格天井は、
格縁（リブ）を所定形状に縦横配列して天井面を
格子形に構成するものであるため、単調となりが
ちなコンクリート建築の内装にデザイン上の興味
あるアクセントを付与し得るものである。しか
も、この構造を採用することにより、普通のスラ
ブ構造に比し多層建築の場合、各階につきその天
井のふところ寸法を20cm程度小さくすることがで
き、その結果高層建築物では軒高さで、より多く
の階数を採ることができる等多くの有利な点があ
る。 In recent years, coffered ceilings made of ribs arranged in a lattice pattern have come to be used as an interior ceiling type for reinforced concrete buildings. This coffered ceiling is
Since the ceiling surface is constructed in a lattice shape by arranging ribs in a predetermined shape, it can add an interesting design accent to the interior of a concrete building, which tends to be monotonous. Furthermore, by adopting this structure, in the case of multi-story buildings, the ceiling dimensions of each floor can be reduced by about 20 cm compared to ordinary slab structures, and as a result, the height of the eaves of high-rise buildings can be reduced by approximately It has many advantages such as being able to have many floors.
このような格天井形式を、建築分野においては
一般にワツフルスラブまたはグリツドドームと称
し、この格天井の施行方法をワツフルスラブ工法
といつている。このワツフルスラブ工法は、例え
ば、截頭角錐台形状の凸型に構成した型枠（この
型枠の外部形状は、完成した格天井の縦横に延在
する格縁（リブ）により画成囲繞される格間の内
部形状と一致するよう設定してある）を、建物の
天井となる個所にサポート部材および根太を介し
て多数水平に配列保持し、この凸型枠の上面にコ
ンクリートを流し込んで養生固化した後、該型枠
を脱型することにより格天井を構築するものであ
る。 In the architectural field, this type of coffered ceiling is generally referred to as a Watsuful slab or grid dome, and the method of constructing this coffered ceiling is called the Watsuful slab construction method. This Watsuful slab construction method uses, for example, a truncated truncated pyramid-shaped convex formwork (the external shape of this formwork is a coffered ceiling defined and surrounded by ribs extending vertically and horizontally of the completed coffered ceiling). (set to match the internal shape of the building) were arranged horizontally through support members and joists at the part that would become the ceiling of the building, and concrete was poured onto the top of this convex form and allowed to harden. After that, the coffered ceiling is constructed by removing the formwork.
従来、この工法に使用する型枠としては、鋼鉄
板を深しぼり加工したものが知られているが、こ
れは次のような欠点がある。すなわち、型枠が鉄
鋼製であるため１個当りの重量が嵩み、建設現場
への多量の運搬が困難であると共に施行時におけ
る支持を強固にする必要がある。また、鉄鋼板を
深しぼり加工するためには強力なプレスを必要と
するが、このことは必然的にこの型枠の形状も加
工容易な単純なものとならざるを得ず、デザイン
上の多様性は望むべくもなかつた。 Conventionally, the formwork used in this construction method is a deep-drawn steel plate, but this has the following drawbacks. That is, since the formwork is made of steel, each formwork is heavy, making it difficult to transport a large amount to a construction site and requiring strong support during construction. In addition, a powerful press is required to deep draw steel sheets, which inevitably means that the shape of the formwork must be simple and easy to process, making it possible to create a variety of designs. There was no sex at all.
そこで、ガラス繊維等で補強した合成樹脂で型
枠を形成すると共にこの型枠のテーパ部分に型枠
よりも比重の小さい木質材料或いは硬質発泡材料
を挾持することにより軽量化と製造の容易化ない
しは補強を図つた型枠（実公昭47−23634号公報）
が提案されたり、あるいは型枠とコンクリートの
離形性を向上させるため型枠表面を合成樹脂シー
トで被覆する等の工夫がなされているが、この種
の型枠を建物の天井となる個所に水平に組上げた
りコンクリートの硬化後取り外す作業が面倒であ
る等の欠点があつた。 Therefore, by forming a formwork from a synthetic resin reinforced with glass fiber, etc., and sandwiching a wooden material or hard foam material with a specific gravity smaller than that of the formwork in the tapered part of the formwork, it is possible to reduce the weight and facilitate manufacturing. Formwork with reinforcement (publication number 47-23634)
However, some methods have been proposed, such as covering the surface of the formwork with a synthetic resin sheet to improve the releasability of the formwork and concrete. There were drawbacks such as the difficulty of assembling horizontally and removing the concrete after it hardened.
そこで、考案者は組上げないし取り外し作業を
容易に行なうことのできるワツフルスラブ工法用
型枠を得るべく鋭意研究を重ねた結果、型枠の頂
面各隅角部にボルト挿通孔を穿設し、これらの挿
通孔に型枠を支持するサポート部材で支持した根
太に取着した可調整固定ボルトを挿通して固定す
れば有効であることを突き止めた。 Therefore, the inventor conducted extensive research in order to create a formwork for the Watsuful Slab method that could be easily assembled and dismantled, and as a result, he drilled bolt insertion holes at each corner of the top surface of the formwork. It was found that it is effective to insert and fix an adjustable fixing bolt attached to a joist supported by a support member that supports the formwork through the insertion hole of the formwork.
従つて、本考案の目的は、組上げないしは取外
し作業の容易なワツフルスラブ工法用型枠を提供
するにある。 Therefore, an object of the present invention is to provide a formwork for the Watsuful slab construction method that is easy to assemble or remove.
前述の目的を達成するため、本考案において
は、発泡合成樹脂を基材として形成した所定形状
の凸型枠の外表面に熱可塑性合成樹脂フイルムを
被覆し、この熱可塑性合成樹脂フイルムの端縁部
を外方へ水平に展延させてフランジを構成し、前
記凸型枠の頂面各隅角部にこれを支持するための
ボルト挿通孔を穿設し、さらに前記ボルト挿通孔
に前記凸型枠の下方内部にサポート部材で支持し
た根太に取着した可調整固定ボルトを挿着して固
定支持するよう構成することを特徴とする。 In order to achieve the above-mentioned object, in the present invention, a thermoplastic synthetic resin film is coated on the outer surface of a convex frame of a predetermined shape formed using a foamed synthetic resin as a base material, and the edges of the thermoplastic synthetic resin film are coated with a thermoplastic synthetic resin film. horizontally extending outward to form a flange, bolt insertion holes for supporting the convex formwork are bored at each corner of the top surface of the convex formwork, and the convex The formwork is characterized in that it is configured to be fixedly supported by inserting adjustable fixing bolts attached to the joists supported by support members inside the lower part of the formwork.
次に、本考案に係るワツフルスラブ工法用型枠
の実施例につき、添付図面を参照しながら以下詳
細に説明する。 Next, embodiments of the formwork for the Watsuful slab construction method according to the present invention will be described in detail below with reference to the accompanying drawings.
第１図において、参照符号１０は本考案に係る
一実施例としての外部形態を備えるワツフルスラ
ブ工法用型枠を示し、これは四角錐台を任意の高
さで水平に截断した形状を有するものとして現わ
されているが、この種形状に限定されるものでは
ない。すなわち、この型枠１０の外部形状は、施
行を意図する格天井の縦横に延在する格縁（リ
ブ）と天井面とにより画成される夫々の格間の内
部形状と一致するものであつて、しかもこの型枠
の脱型が容易なものであれば如何なる形状であつ
てもよい。型枠１０は、第２図の断面図から判明
するように、発泡合成樹脂、例えば、発泡ポリス
チレン、すなわち発泡スチロール樹脂１２を材質
として発泡成型されたものであり、この型枠１０
の外表面には熱可塑性樹脂フイルム、例えば、ポ
リスチレンシート１４が、発泡スチロール樹脂材
質上に直接被覆されている。すなわち、発泡金型
（図示せず）内にスチロールビーズを充填して所
定圧力下において加熱し、発泡成型することによ
つて発泡スチロール樹脂12を基材とする型枠１０
が得られ、この型枠１０の外表面に適宜のポリス
チレンシート１４を被覆してコンクリート固化後
の離型性を向上させているものである。発泡合成
樹脂としては、その他発泡ポリウレタン、発泡ポ
リエチレンまたは発泡塩化ビニル樹脂を選択的に
使用することができ、また熱可塑性樹脂フイルム
としてはポリウレタンシートが使用できる。 In FIG. 1, reference numeral 10 indicates a formwork for the Watsuful slab construction method having an external form as an embodiment of the present invention, which has the shape of a truncated quadrangular pyramid cut horizontally at an arbitrary height. Although shown, it is not limited to this type of shape. That is, the external shape of the formwork 10 matches the internal shape of each coffered space defined by the ceiling surface and the coffered edges (ribs) extending vertically and horizontally of the coffered ceiling to be constructed. Moreover, the mold may have any shape as long as it can be easily demolded. As can be seen from the cross-sectional view of FIG. 2, the formwork 10 is foam-molded using a foamed synthetic resin, for example, expanded polystyrene, that is, expanded styrene resin 12.
A thermoplastic resin film, such as a polystyrene sheet 14, is directly coated on the outer surface of the expanded polystyrene resin material. That is, by filling a foaming mold (not shown) with styrene beads and heating them under a predetermined pressure to perform foam molding, a formwork 10 made of styrene foam resin 12 as a base material is formed.
is obtained, and the outer surface of this formwork 10 is coated with a suitable polystyrene sheet 14 to improve mold releasability after concrete solidification. As the foamed synthetic resin, foamed polyurethane, foamed polyethylene, or foamed vinyl chloride resin can be selectively used, and as the thermoplastic resin film, a polyurethane sheet can be used.
型枠１０は、内部に空洞１５をもたせてその軽
量化および使用材料の節減を図るのが好適であ
り、また、型枠１０の頂部平面の各隅部近傍には
夫々空洞１５内にまで貫通する通孔１６を穿設し
て、後述するサポート部材のボルトを挿通するよ
う機能させる。なお、第１図に示すように、型枠
１０の開放端部において、被覆シート１４を外方
へ水平に展延させてフランジ１７を周設してお
く。 It is preferable that the formwork 10 has a cavity 15 therein to reduce its weight and reduce the amount of materials used.Furthermore, the formwork 10 has a cavity 15 penetrating into the cavity 15 near each corner of the top plane of the formwork 10. A through hole 16 is bored through the hole 16 to allow a bolt of a support member, which will be described later, to be inserted therethrough. In addition, as shown in FIG. 1, at the open end of the formwork 10, the covering sheet 14 is horizontally extended outward and a flange 17 is provided around it.
このように構成した本考案に係るワツフルスラ
ブ工法用型枠の使用の実際につき、以下説明す
る。本考案に係る型枠１０は、第３図に示すよう
に床面（図示せず）に直立させたサポート部材１
８に進退自在に設けた十字架状の水平根太２０に
取着した可調整固定ボルト２２を型枠１０の空洞
１５方向から挿通孔１６に挿着した後、型枠１０
を所望の天井位置に固定支持する。このとき、前
記可調整固定ボルト２２は型枠１０の頂部平面に
設けた前記通孔１６中に挿通固定されている。こ
のように固定支持された型枠１０は、所定間隔だ
け離間させて多数配列して格天井用の型枠配列を
形成する。次いで上方からコンクリートを流し込
み、所定時間養生して固化させた後、サポート部
材と共に型枠１０を離型すれば、所定形状の格天
井構造が施行される。 The actual use of the formwork for the Watsuful slab construction method according to the present invention constructed as described above will be explained below. As shown in FIG.
After inserting the adjustable fixing bolt 22 attached to the cross-shaped horizontal joist 20 provided in the formwork 8 so that it can move forward and backward into the insertion hole 16 from the direction of the cavity 15 of the formwork 10, the formwork 10
Fixed and supported at the desired ceiling position. At this time, the adjustable fixing bolt 22 is inserted and fixed into the through hole 16 provided on the top plane of the formwork 10. A large number of formworks 10 fixedly supported in this manner are arranged at predetermined intervals to form a formwork arrangement for a coffered ceiling. Next, concrete is poured from above and allowed to cure for a predetermined period of time to harden, and then the formwork 10 is released together with the support members to form a coffered ceiling structure of a predetermined shape.
なお、この型枠１０は発泡スチロール樹脂を材
質とするが、流し込まれたコンクリートの重量に
は充分耐え、変型したり破裂したりすることはな
い。また外表面には平滑なポリスチレンシートの
被覆加工がしてあるため、型枠撤去時のコンクリ
ートからの離型性は極めて優秀であり、しかも離
型後のコンクリート表面は非常に平滑で美麗であ
る。 Although the formwork 10 is made of styrene foam resin, it can sufficiently withstand the weight of poured concrete and will not deform or burst. In addition, the outer surface is coated with a smooth polystyrene sheet, so it has excellent release properties from the concrete when the formwork is removed, and the concrete surface after release is extremely smooth and beautiful. .
このように、本考案に係るワツフルスラブ工法
用型枠は、発泡スチロール樹脂を主たる材質とす
るため極めて軽量であり、従つてこれを支持する
サポート部材は型枠上に流し込まれるコンクリー
トの分布重量を支持し得る強度を有すれば足り、
ワツフルスラブの施行作業を著しく容易なものと
する。しかも、従来の鋼鉄製の型枠と異なり、本
考案に係る型枠用の発泡金型は比較的廉価に製造
されるので、型枠単体当りの製造コストも低廉と
なし得ることができる。加えて鋼鉄板の深しぼり
加工は技術的に困難であるためその外部形状もプ
レス加工し易いものに限定されてしまうが、本考
案によれば発泡金型に各種形状をもたせることに
よつて、得られる型枠のデザインも多様なものを
選択することができ、従つて格天井のデザインも
単なる格子状のものでなく、夫々の格間をドーム
状になし得る等多くのバラエテイに富んだ目新し
いデザインのものとすることが可能である。 As described above, the formwork for the Watsuful slab construction method according to the present invention is extremely lightweight because it is mainly made of styrofoam resin, and therefore the support members that support it support the distributed weight of the concrete poured onto the formwork. It is enough to have the strength to obtain
To significantly facilitate the work of constructing a Watsuful slab. Furthermore, unlike conventional steel formwork, the foaming mold for formwork according to the present invention can be manufactured at a relatively low cost, so that the manufacturing cost per formwork can also be reduced. In addition, deep drawing of steel plates is technically difficult, so the external shape is limited to those that are easy to press, but according to the present invention, by giving the foam mold various shapes, The design of the resulting formwork can be selected from a wide variety of designs, and the design of the coffered ceiling is not just a lattice-like design, but also a variety of novel designs, such as each coffer space can be made into a dome shape. It is possible to make it the one of .
特に、本考案においては、型枠を建物の天井と
なる個所に組上げる際、型枠自体を可調整固定ボ
ルトを介してサポート部材に固定して行えるの
で、作業の容易化を達成することができ、離型作
業も簡便に行うことができるという優れた特徴を
有する。 In particular, in the present invention, when assembling the formwork to the part that will become the ceiling of the building, the formwork itself can be fixed to the support member via adjustable fixing bolts, making the work easier. It has the excellent feature that it can be easily removed from the mold.
以上、本考案に係るワツフルスラブ工法用の型
枠につき好適な実施例を挙げて説明したが、本考
案はこの実施例に限定されるものでなく、考案の
精神を逸脱しない範囲内で多くの改良・変更をな
し得るものである。 The formwork for the Watsuful slab construction method according to the present invention has been described above with reference to preferred embodiments, but the present invention is not limited to this embodiment, and many improvements can be made without departing from the spirit of the invention.・Changes can be made.
第１図は本考案に係るワツフルスラブ工法用型
枠の斜視図、第２図は第１図に示す型枠の−
線断面図、第３図は第１図に示す型枠の使用状態
を示す一部切欠説明図である。
１０……型枠、１２……発泡スチロール樹脂、
１４……ポリスチレン、１５……空洞シート、１
６……通孔、１７……フランジ、１８……サポー
ト部材、２０……根太、２２……ボルト。
Fig. 1 is a perspective view of the formwork for the Watsuful slab construction method according to the present invention, and Fig. 2 is a perspective view of the formwork shown in Fig. 1.
The line sectional view and FIG. 3 are partially cutaway explanatory views showing the state in which the formwork shown in FIG. 1 is used. 10... Formwork, 12... Styrofoam resin,
14... Polystyrene, 15... Hollow sheet, 1
6...Through hole, 17...Flange, 18...Support member, 20...Joist, 22...Bolt.
Claims (1)
凸型枠の外表面に熱可塑性合成樹脂フイルムを被
覆し、この熱可塑性合成樹脂フイルムの端縁部を
外方へ水平に展延させてフランジを構成し、前記
凸型枠の頂面各隅角部にこれを支持するためのボ
ルト挿通孔を穿設し、さらに前記ボルト挿通孔に
前記凸型枠の下方内部にサポート部材で支持した
根太に取着した可調整固定ボルトを挿着して固定
支持するよう構成してなるワツフルスラブ工法用
型枠。 A thermoplastic synthetic resin film is coated on the outer surface of a convex mold of a predetermined shape formed using foamed synthetic resin as a base material, and the edges of this thermoplastic synthetic resin film are horizontally extended outward to form a flange. A bolt insertion hole for supporting the convex frame is formed at each corner of the top surface of the convex form, and a joist supported by a support member inside the convex form is inserted into the bolt through hole. A formwork for the Watsuful slab construction method that is configured to be fixedly supported by inserting the attached adjustable fixing bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7097984U JPS601842U (en) | 1984-05-17 | 1984-05-17 | Formwork for Watsuful slab construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7097984U JPS601842U (en) | 1984-05-17 | 1984-05-17 | Formwork for Watsuful slab construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS601842U JPS601842U (en) | 1985-01-09 |
| JPH0144683Y2 true JPH0144683Y2 (en) | 1989-12-25 |
Family
ID=30201129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7097984U Granted JPS601842U (en) | 1984-05-17 | 1984-05-17 | Formwork for Watsuful slab construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS601842U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510965Y2 (en) * | 1987-03-09 | 1993-03-17 | ||
| JPH0612127Y2 (en) * | 1987-12-29 | 1994-03-30 | 積水化成品工業株式会社 | Waffle slab demolding cover |
| JPH0633118Y2 (en) * | 1988-01-30 | 1994-08-31 | 鐘淵化学工業株式会社 | Formwork cover sheet |
-
1984
- 1984-05-17 JP JP7097984U patent/JPS601842U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS601842U (en) | 1985-01-09 |
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