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JP3559935B2 - PC foundation joint concrete casting formwork - Google Patents
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JP3559935B2 - PC foundation joint concrete casting formwork - Google Patents

PC foundation joint concrete casting formwork Download PDF

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Publication number
JP3559935B2
JP3559935B2 JP15956694A JP15956694A JP3559935B2 JP 3559935 B2 JP3559935 B2 JP 3559935B2 JP 15956694 A JP15956694 A JP 15956694A JP 15956694 A JP15956694 A JP 15956694A JP 3559935 B2 JP3559935 B2 JP 3559935B2
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JP
Japan
Prior art keywords
wedge
foundation
members
concrete
formwork
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 - Fee Related
Application number
JP15956694A
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Japanese (ja)
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JPH084290A (en
Inventor
建二 広沢
良男 西野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daiwa House Industry Co Ltd
Original Assignee
Daiwa House Industry Co Ltd
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
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Priority to JP15956694A priority Critical patent/JP3559935B2/en
Publication of JPH084290A publication Critical patent/JPH084290A/en
Application granted granted Critical
Publication of JP3559935B2 publication Critical patent/JP3559935B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【産業上の利用分野】
本発明は、建築工事現場の基礎施工下地面に並べられて隣合うPC基礎とPC基礎の間のジョイント隙間にコンクリートを打設するとき使用する型枠に関するものである。
【0002】
【従来の技術】
建築工事現場の基礎施工下地面に並べられて隣合うPC基礎とPC基礎の間のジョイント隙間にコンクリートを打設する場合、図9と図10に図示する如く、それら隣合うPC基礎11・11の左右側面12に合板35・36を当て、その合板35・36に穿設した孔37に番線38を通して左右の合板35・36を縛り付け、それら隣合うPC基礎11・11と左右の合板35・36に囲まれるジョイント隙間39にコンクリート40を打設している。
【0003】
【発明が解決しようとする課題】
かかる従来法では、
(1) 合板を使用しているので環境保全上問題がある。
(2) 合板も番線も使い捨てになるのでコスト高になるうえ、使い捨てられた合板も番線が散乱して現場が煩雑になりがちになる。
(3) 合板は基礎施工下地面から浮き上った状態でPC基礎を左右から挟持する恰好になるが、左右の合板を連結している番線が打ち込んだコンクリートから受ける内部圧力によって伸び、合板がPC基礎の側面から離れてズレ落ちる危険がある。
(4) 打設したコンクリートの硬化後に合板を取り外すと、その硬化したジョイントコンクリートの表面から番線が突き出て危険であり、ジョイントコンクリートの表面を平に仕上げなければならなくなる。
【0004】
【発明の目的】
そこで本発明は、基礎施工下地面に並べられて隣合うPC基礎とPC基礎の間に、ジョイントコンクリートを打ち込むためのジョイント隙間を簡便に形成することが出来、ジョイントコンクリートの硬化後の取り外しも簡便に行うことが出来、その解体後にジョイントコンクリート表面の手直しを必要とせず、而も、使い捨てではなく繰り返し使用することが出来る型枠を得ることを目的とする。
【0005】
【課題を解決するための手段】
本発明に係るPC基礎ジョイントコンクリート打設用型枠は、PC基礎の側面に密着する平面を有し、上下両縁から片側にフランジが突き出ており、上縁の前後両端部分から当該フランジとは逆向きに爪が突き出た2枚の蓋枠材と、連結材の左右両端から脚材が向き合って突き出ており、それらの脚材間にPC基礎が遊嵌する凹部を形成した2枚のコ字形止め枠材と、4個以上の楔材とによって形成され、前記止め枠材の2つの脚材の向き合う内縁に前記楔材と嵌合する嵌込溝が付設されていることを特徴とするものである。
【0006】
【実施例】
以下、図示する実施例により本発明を説明する。
図1〜8は本発明の実施例を図示するものである。
PC基礎ジョイントコンクリート打設用型枠30は、2枚の蓋枠材18・19と2枚の止め枠材24・25と4個の楔材26とによって構成されている。
【0007】
これら蓋枠材18・19と止め枠材24・25と楔材26には金属板が使用されている。
蓋枠材18・19は、PC基礎11の側面12に密着する平面13を有し、上下両縁から片側にフランジ14・15が突き出ており、上縁の前後両端部分からフランジ14とは逆向きに爪16・17が突き出ている。
【0008】
止め枠材24・25は、連結材20の左右両端から脚材21・22を向き合わせにして突き出して構成され、それらの脚材間21・22にPC基礎11と遊嵌する凹部23が形成されている。
連結材20と左右の脚材21・22には平幅鋼を使用し、連結材20の平幅鋼に脚材21・22の平幅鋼を重ね合わせて溶接することによって、止め枠材24・25を安価に作ることが出来る(図6)。
その連結材20と脚材21・22との接合箇所と、脚材21・22の下端には貫通孔31・32が開けられている。
【0009】
止め枠材24・25の2つの脚材21・22の向き合う内縁27・28には、楔材26と嵌合する嵌込溝29a・29bが付設されている。
楔材26は、下駄歯状に2個の楔板33a・33bを平幅鋼に直角に立って溶接して形成されている。
これら2個の楔板33a・33bの間隔Nは、脚材21・22の2つの嵌込溝29a・29bの間隔Mに等しくなっている。
【0010】
【作用】
PC基礎ジョイントコンクリート打設用型枠30は、まず、フランジ14・16を外向きにし(図1)、隣合うPC基礎11の天端34に爪16・17を引っ掛けて蓋枠材18・19をジョイント隙間39に取り付ける(図2)。
次に、左右に向き合う蓋枠材18・19の爪16・16および爪17・17に連結材20を載せ、各左右の脚材21・22の間に左右の蓋材18・19を挟み込むようにして止め枠材24・25をPC基礎11・11に取り付ける(図3)。
【0011】
次いで、楔板33a・33bを嵌込溝29a・29bに嵌め合わせて楔材26を止め枠材24(25)の脚材21(22)と蓋枠材18(19)の間に打ち込む。
そのようにすると、楔材26によって蓋枠材18(19)がPC基礎11の側面12に押し付けられて密着し、隣合うPC基礎11・11と左右の蓋枠材18・19に囲まれたジョイント隙間39が形成され、ジョイントコンクリート40が打ち込まれる。
【0012】
PC基礎ジョイントコンクリート打設用型枠30の解体は、その組み立てとは逆順にハンマーで楔材26を叩いて外し、止め枠材24・25を引き上げて行う。
【0013】
【発明の効果】
上記の通り本発明に係るPC基礎ジョイントコンクリート打設用型枠30は、組立式になっているので、PC基礎11への取付と解体が簡便に行われ、蓋枠材18・19は、爪16・17が天端36に引っ掛かっており、而も、楔材26によってPC基礎11の側面12に強く押し付けられているのでジョイントコンクリート40の打設時にズレ落ちることがない。
また、楔材26も嵌込溝29に嵌め込まれているのでジョイントコンクリート40の打設時に抜け外れることがない。
【0014】
楔材26は、ハンマーで叩いて嵌込溝29に嵌め込まれ、また、ハンマーで叩いて取り外されるのであるが、止め枠材24・25の内縁27・28の上下2箇所に嵌込溝29a・29bを付設し、楔材26を下駄歯状に2個の楔板33a・33bを平幅鋼に直角に立てて溶接して形成し、それら2個の楔板33a・33bの間隔Nを2つの嵌込溝29a・29bの間隔Mに等しくしたものでは、その平幅鋼をハンマーで叩くだけで蓋枠材18(19)の上下がPC基礎11の側面12に密着し、また、平幅鋼をハンマーで叩けば上下の楔板33a・33bが同時に外れるのでPC基礎ジョイントコンクリート打設用型枠が解体し易くなる。
【0015】
そして、そのように楔材26を下駄歯状に2個の楔板33a・33bを平幅鋼に直角に立てて溶接して形成すると、蓋枠材18・19は、その上下両縁から突き出たフランジ14・15と、その平面13に打ち込まれて密着した楔材26の平幅鋼によって補強されるので、打ち込んだジョイントコンクリート40からの内圧を受けて変形する危険もなくなる。
【0016】
また、連結材20と脚材21・22の接合箇所に貫通孔31・32を開けたものでは、そこにロープを引っ掛けて止め枠材24・25を引き上げることが出来るので、PC基礎ジョイントコンクリート打設用型枠30の組み立てと解体に好都合である。
【0017】
そして、蓋枠材18・19と止め枠材24・25と楔材26が金属板製であるため、PC基礎ジョイントコンクリート打設用型枠30は解体後繰り返し使用することが出来て経済的である。
【0018】
そのように本発明に係る蓋枠材18・19や止め枠材24・25や楔材26は繰り返し使用されるものであるから、解体後現場周辺に投げ捨てられて散乱するようなことはなく、現場周辺が煩雑になるようなことはなくなる。
【0019】
また本発明によると、打設したジョイントコンクリート40の表面に、蓋枠材18・19の平面13が転写されて平滑に仕上がるので、PC基礎ジョイントコンクリート打設用型枠30の解体後に格別な仕上げをする必要もなくなる。
【図面の簡単な説明】
【図1】本発明に係る蓋枠材のPC基礎の間のジョイント隙間への取付状態を示す斜視図である。
【図2】本発明に係る蓋枠材のPC基礎の間のジョイント隙間への取付状態を示す斜視図である。
【図3】本発明に係る蓋枠材と止め枠材のPC基礎の間のジョイント隙間への取付状態を示す斜視図である。
【図4】本発明に係るPC基礎ジョイントコンクリート打設用型枠のPC基礎の間のジョイント隙間への取付状態を示す斜視図である。
【図5】本発明に係るPC基礎ジョイントコンクリート打設用型枠のPC基礎の間のジョイント隙間への取付状態を示す斜視図である。
【図6】本発明に係る止め枠材の斜視図である。
【図7】本発明に係る蓋枠材の斜視図である。
【図8】本発明に係る楔材の斜視図である。
【図9】従来のジョイント隙間の型枠の斜視図である。
【図10】従来のジョイント隙間の型枠の斜視図である。
【符号の説明】
11 PC基礎
12 PC基礎の側面
13 蓋枠材の平面
14 フランジ
15 フランジ
16 爪
17 爪
18 蓋枠材
19 蓋枠材
20 連結材
21 脚材
22 脚材
23 凹部
24 止め枠材
25 止め枠材
26 楔材
27 内縁
28 内縁
29a 嵌込溝
29b 嵌込溝
30 PC基礎ジョイントコンクリート打設用型枠
31 貫通孔
32 貫通孔
33a 楔板
33b 楔板
34 天端
35 合板
36 合板
37 孔
38 番線
39 ジョイント隙間
40 コンクリート
M 嵌込溝の間隔
N 楔板の間隔
[0001]
[Industrial applications]
The present invention relates to a formwork that is used when concrete is poured into a joint gap between adjacent PC foundations that are arranged on a foundation work foundation surface of a building construction site.
[0002]
[Prior art]
When concrete is poured into the joint gap between adjacent PC foundations that are arranged on the foundation construction base surface of the building construction site and adjacent PC foundations, as shown in FIGS. The plywood 35, 36 is applied to the left and right side surfaces 12 of the plywood 35, and the left and right plywood 35, 36 are tied to the holes 37 formed in the plywood 35, 36 through the number line 38. Concrete 40 is cast in a joint gap 39 surrounded by 36.
[0003]
[Problems to be solved by the invention]
In such a conventional method,
(1) Since plywood is used, there is a problem in environmental conservation.
(2) Since both the plywood and the track are disposable, the cost is high, and the track of the disposable plywood tends to be scattered and the site tends to be complicated.
(3) The plywood is in a state of holding the PC foundation from the left and right in a state where it rises from the foundation work foundation surface, but the line connecting the left and right plywood expands due to the internal pressure received from the poured concrete, and the plywood becomes There is a danger of falling off the side of the PC foundation.
(4) If the plywood is removed after the cast concrete has hardened, the line will protrude from the hardened joint concrete surface, which is dangerous, and the joint concrete surface must be finished flat.
[0004]
[Object of the invention]
Therefore, the present invention can easily form a joint gap for driving joint concrete between adjacent PC foundations which are arranged on a foundation construction base surface and can be easily removed after hardening of the joint concrete. It is an object of the present invention to obtain a formwork that does not require reworking of the joint concrete surface after dismantling and can be used repeatedly rather than disposable.
[0005]
[Means for Solving the Problems]
The PC foundation joint concrete casting formwork according to the present invention has a flat surface in close contact with the side surface of the PC foundation, and a flange protrudes from one of the upper and lower edges to one side. Two lid frame members with claws protruding in the opposite direction, and two core members with leg portions facing and protruding from both left and right ends of the connecting member, and a recess in which the PC foundation is loosely fitted between the leg members. It is formed by a V-shaped stopper frame member and four or more wedge members, and a fitting groove for fitting the wedge member is provided at an inner edge of the stopper frame member facing two leg members. Things.
[0006]
【Example】
Hereinafter, the present invention will be described with reference to the illustrated embodiments.
1 to 8 illustrate an embodiment of the present invention.
The PC foundation joint concrete casting formwork 30 is composed of two cover frame members 18 and 19, two stop frame members 24 and 25, and four wedge members 26.
[0007]
A metal plate is used for the lid frame members 18 and 19, the stop frame members 24 and 25, and the wedge member 26.
The lid frame members 18 and 19 have a flat surface 13 which is in close contact with the side surface 12 of the PC base 11, and flanges 14 and 15 protrude from both upper and lower edges to one side, and are opposite to the flange 14 from both front and rear ends of the upper edge. The claws 16 and 17 project in the direction.
[0008]
The retaining frame members 24 and 25 are formed by projecting from the left and right ends of the connecting member 20 with the leg members 21 and 22 facing each other, and a recess 23 for loosely fitting with the PC base 11 is formed between the leg members 21 and 22. Have been.
A flat steel is used for the connecting member 20 and the left and right leg members 21 and 22, and the flat steel of the leg members 21 and 22 is overlapped and welded to the flat steel of the connecting member 20, so that the stop frame member 24 is formed.・ 25 can be made at low cost (Fig. 6).
Through holes 31 and 32 are formed at the joint between the connecting member 20 and the legs 21 and 22 and at the lower ends of the legs 21 and 22.
[0009]
Fitting grooves 29a and 29b for fitting with the wedge member 26 are provided on inner edges 27 and 28 of the two frame members 21 and 22 of the stop frame members 24 and 25, respectively.
The wedge member 26 is formed by welding two wedge plates 33a and 33b in a clog-tooth shape at a right angle to flat steel.
The interval N between these two wedge plates 33a and 33b is equal to the interval M between the two fitting grooves 29a and 29b of the leg members 21 and 22.
[0010]
[Action]
First, the PC base joint concrete casting formwork 30 has the flanges 14 and 16 turned outward (FIG. 1), and hooks the claws 16 and 17 on the top end 34 of the adjacent PC base 11 to cover frame members 18 and 19. Is attached to the joint gap 39 (FIG. 2).
Next, the connecting member 20 is placed on the claws 16 and 16 and the claws 17 and 17 of the lid frame members 18 and 19 facing left and right, and the left and right lid members 18 and 19 are sandwiched between the left and right leg members 21 and 22. Then, the retaining frame members 24 and 25 are attached to the PC bases 11 and 11 (FIG. 3).
[0011]
Next, the wedge plates 33a and 33b are fitted into the fitting grooves 29a and 29b, and the wedge member 26 is driven between the leg member 21 (22) of the stop frame member 24 (25) and the lid frame member 18 (19).
Then, the lid frame member 18 (19) is pressed against the side surface 12 of the PC base 11 by the wedge member 26 and closely adheres thereto, and is surrounded by the adjacent PC base 11 ・ 11 and the left and right lid frame members 18 ・ 19. The joint gap 39 is formed, and the joint concrete 40 is driven.
[0012]
The dismantling of the PC foundation joint concrete casting formwork 30 is performed by hitting and removing the wedge member 26 with a hammer in the reverse order of its assembly, and pulling up the stop frame members 24 and 25.
[0013]
【The invention's effect】
As described above, since the PC foundation joint concrete casting formwork 30 according to the present invention is of an assembling type, attachment and disassembly to the PC foundation 11 are easily carried out, and the lid frame members 18 and 19 are provided with claws. 16 and 17 are hooked on the top end 36, and are also strongly pressed against the side surface 12 of the PC foundation 11 by the wedge members 26, so that they do not slip when the joint concrete 40 is poured.
Further, since the wedge member 26 is also fitted in the fitting groove 29, it does not come off when the joint concrete 40 is driven.
[0014]
The wedge member 26 is hit into the fitting groove 29 by hitting with a hammer, and is removed by hitting with a hammer. The fitting grooves 29a are provided at two upper and lower positions of the inner edges 27 and 28 of the retaining frame members 24 and 25. 29b, and the wedge member 26 is formed by welding two wedge plates 33a and 33b in the shape of a clog-tooth and standing at right angles to flat-width steel, and setting the distance N between the two wedge plates 33a and 33b to 2 In the case where the distance M between the two fitting grooves 29a and 29b is equal to the flat width steel, the upper and lower sides of the lid frame member 18 (19) are in close contact with the side surface 12 of the PC base 11 by simply hitting the flat steel with a hammer. If the steel is hit with a hammer, the upper and lower wedge plates 33a and 33b come off at the same time, so that the concrete foundation casting concrete formwork can be easily dismantled.
[0015]
When the two wedge plates 33a and 33b are formed in the shape of clogs by welding the two wedge plates 33a and 33b at right angles to flat-width steel, the lid frame members 18 and 19 project from the upper and lower edges thereof. Since the flanges 14 and 15 are reinforced by the flat steel of the wedge member 26 which is driven into and adheres to the flat surface 13, there is no danger of deformation due to the internal pressure from the driven joint concrete 40.
[0016]
Also, in the case where the through holes 31 and 32 are opened at the joint between the connecting member 20 and the leg members 21 and 22, the rope can be hooked there and the retaining frame members 24 and 25 can be pulled up. This is convenient for assembling and disassembling the installation formwork 30.
[0017]
Since the lid frame members 18 and 19, the stop frame members 24 and 25, and the wedge member 26 are made of metal plate, the PC base joint concrete casting mold 30 can be repeatedly used after dismantling, and is economical. is there.
[0018]
Since the lid frame members 18 and 19, the stop frame members 24 and 25, and the wedge members 26 according to the present invention are repeatedly used, they are not thrown away and scattered around the site after disassembly. The surroundings of the site will not be complicated.
[0019]
Further, according to the present invention, since the flat surfaces 13 of the lid frame members 18 and 19 are transferred to the surface of the joint concrete 40 that has been cast and finished smoothly, the PC foundation joint concrete casting mold 30 has a special finish after being dismantled. You don't have to.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a lid frame material according to the present invention is attached to a joint gap between PC foundations.
FIG. 2 is a perspective view showing a state in which a lid frame material according to the present invention is attached to a joint gap between PC foundations.
FIG. 3 is a perspective view showing a state in which a lid frame member and a stop frame member according to the present invention are attached to a joint gap between PC bases.
FIG. 4 is a perspective view showing a state in which a PC foundation joint concrete casting formwork according to the present invention is attached to a joint gap between PC foundations.
FIG. 5 is a perspective view showing a state in which a PC foundation joint concrete casting formwork according to the present invention is attached to a joint gap between PC foundations.
FIG. 6 is a perspective view of a retaining frame member according to the present invention.
FIG. 7 is a perspective view of a lid frame member according to the present invention.
FIG. 8 is a perspective view of a wedge member according to the present invention.
FIG. 9 is a perspective view of a conventional mold frame having a joint gap.
FIG. 10 is a perspective view of a conventional mold having a joint gap.
[Explanation of symbols]
REFERENCE SIGNS LIST 11 PC foundation 12 PC foundation side surface 13 Flat surface of lid frame material 14 Flange 15 Flange 16 Claw 17 Claw 18 Lid frame material 19 Lid frame material 20 Connecting material 21 Leg material 22 Leg material 23 Depression 24 Stop frame material 25 Stop frame material 26 Wedge material 27 Inner edge 28 Inner edge 29a Fitting groove 29b Fitting groove 30 PC foundation joint concrete casting formwork 31 Through hole 32 Through hole 33a Wedge plate 33b Wedge plate 34 Top end 35 Plywood 36 Plywood 37 Hole 38 Number line 39 Joint gap 40 Concrete M Spacing between fitting grooves N Spacing between wedge plates

Claims (5)

PC基礎の側面に密着する平面を有し、上下両縁から片側にフランジが突き出ており、上縁の前後両端部分から当該フランジとは逆向きに爪が突き出た2枚の蓋枠材と、連結材の左右両端から脚材が向き合って突き出ており、それらの脚材間にPC基礎が遊嵌する凹部を形成した2枚のコ字形止め枠材と、4個以上の楔材とによって形成され、前記止め枠材の2つの脚材の向き合う内縁に前記楔材と嵌合する嵌込溝が付設されていることを特徴とするPC基礎ジョイントコンクリート打設用型枠。Two lid frame members having a flat surface that is in close contact with the side surface of the PC foundation, a flange protruding from both upper and lower edges to one side, and claws protruding in opposite directions to the flange from front and rear ends of the upper edge, Leg members protrude from the left and right ends of the connecting member facing each other, and are formed by two U-shaped retaining frame members having recesses into which the PC base is loosely fitted between the leg members, and four or more wedge members. And a fitting groove for fitting the wedge member at an inner edge of the stop frame member facing the two leg members. 前掲請求項2に記載の蓋枠材と止め枠材と楔材が金属板製であることを特徴とする前掲請求項2に記載のPC基礎ジョイントコンクリート打設用型枠。3. The concrete foundation casting concrete formwork according to claim 2, wherein the lid frame material, the stop frame material, and the wedge material according to claim 2 are made of a metal plate. 前掲請求項2に記載の連結材と左右の脚材が平幅鋼で形成され、当該連結材の平幅鋼の平面に脚材の平幅鋼の平面が密着して溶接されていることを特徴とする前掲請求項2に記載のPC基礎ジョイントコンクリート打設用型枠。The connecting member according to claim 2 and the left and right leg members are formed of flat steel, and the flat steel plate of the leg material is welded in close contact with the flat steel surface of the connecting member. 3. The formwork for casting concrete for PC foundation joint according to claim 2, characterized in that: 前掲請求項2に記載の連結材の左右両端に貫通孔が形成されていることを特徴とする前掲請求項2に記載のPC基礎ジョイントコンクリート打設用型枠。3. The concrete casting formwork for PC foundation joint according to claim 2, wherein through holes are formed at both left and right ends of the connecting member according to claim 2. 前掲請求項2に記載の楔材が、下駄歯状に2個の楔板を平幅鋼に直角に溶接して形成されており、前記各脚材が2つの嵌込溝を有し、それら各脚材の嵌込溝の間隔Mと楔材の2つの楔板の間隔Nが等しくなっていることを特徴とする前掲請求項2に記載のPC基礎ジョイントコンクリート打設用型枠。The wedge member according to claim 2 is formed by welding two wedge plates in the shape of clogs at right angles to flat steel, and each leg member has two fitting grooves. 3. The concrete casting formwork for PC foundation joint according to claim 2, wherein the interval M between the fitting grooves of the respective leg members and the interval N between the two wedge plates of the wedge member are equal.
JP15956694A 1994-06-18 1994-06-18 PC foundation joint concrete casting formwork Expired - Fee Related JP3559935B2 (en)

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JP15956694A JP3559935B2 (en) 1994-06-18 1994-06-18 PC foundation joint concrete casting formwork

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JP15956694A JP3559935B2 (en) 1994-06-18 1994-06-18 PC foundation joint concrete casting formwork

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JPH084290A JPH084290A (en) 1996-01-09
JP3559935B2 true JP3559935B2 (en) 2004-09-02

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JP5960016B2 (en) * 2012-10-01 2016-08-02 日本住宅株式会社 Concrete foundation construction set

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