JP3959500B2 - Construction method of concrete building - Google Patents

Construction method of concrete building Download PDF

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JP3959500B2
JP3959500B2 JP2004349108A JP2004349108A JP3959500B2 JP 3959500 B2 JP3959500 B2 JP 3959500B2 JP 2004349108 A JP2004349108 A JP 2004349108A JP 2004349108 A JP2004349108 A JP 2004349108A JP 3959500 B2 JP3959500 B2 JP 3959500B2
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jig
concrete
anchor material
concrete building
space
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JP2006132291A (en
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孝夫 杉本
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孝夫 杉本
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発明の詳細な説明Detailed Description of the Invention

この発明は、アンカー材を内部に埋設して行なうコンクリート建造物の建造方法に関する。  The present invention relates to a method for constructing a concrete structure in which an anchor material is buried.

コンクリート建造物の建造に際しては、工事用仮設構造体を取り付けるため金属製のアンカー材を埋設することが行なわれる。最近では、このようにコンクリート建造物にアンカー材を埋設する場合、そのアンカー材が最終的にコンクリート建造物内に確実に埋設されるように指導されている。すなわち、アンカー材の端部がコンクリート建造物面に少しでも露呈するとその部分からアンカー材の腐食が進み、これがコンクリート建造物の強度を低下させて地震時等における崩壊の原因となるからである。  When building a concrete structure, a metal anchor material is buried to attach a temporary structure for construction. Recently, when an anchor material is embedded in a concrete building in this way, it has been instructed to ensure that the anchor material is finally embedded in the concrete building. That is, if the end of the anchor material is exposed to the concrete building surface even a little, corrosion of the anchor material proceeds from that portion, which reduces the strength of the concrete building and causes collapse during an earthquake or the like.

この発明は、上記の事情に鑑みて行なったもので、アンカー材をコンクリート建造物内に施工性を容易に、かつ、確実に埋設できるようにすることを目的とする。  The present invention has been made in view of the above circumstances, and an object thereof is to enable an anchor material to be easily and reliably embedded in a concrete building.

コンクリート建造物内に埋設されるアンカー材の端部面と型枠面との間に、取り外し操作用の凹部を備えるスペース形成用の第１の治具を配置して型枠内にコンクリートを充填固化し、その固化後に前記凹部を操作することで前記第１の治具を取り外すとともに、そのスペースに第２の治具を装着し、前記第２の治具を介して前記アンカー材を使用することで前記コンクリート建造物に仮設構造体を付設構築し、前記仮設構造体の撤去後に前記第２の治具を取り外すとともに、そのスペースを充填物により埋めてコンクリート建造物を建造する。Place a first jig for forming a space with a recess for removal operation between the end face of the anchor material embedded in the concrete building and the formwork surface to fill the formwork with concrete Solidify and remove the first jig by operating the recess after the solidification, attach the second jig to the space, and use the anchor material through the second jig Thus, a temporary structure is attached to the concrete structure, and after removing the temporary structure, the second jig is removed, and the space is filled with a filler to construct the concrete structure.

上記構成によれば、アンカー材の端部位置に充填物が埋められることでアンカー材がコンクリート建造物内に確実に埋設される。第１の治具はコンクリートの充填固化の短期間の後に取り外されるので、コンクリートとの密着が強固でなく、その取り外しが容易に行なわれる。第２の治具は第１の治具が取り外された空間に装着使用されるだけてあるので、長期間使用された場合にも容易に取り外せる。補強用の第２の治具が使用されることで仮設構造体が安定した状態に構築される。  According to the said structure, an anchor material is reliably embed | buried in a concrete building by being filled with the filler in the edge part position of an anchor material. Since the first jig is removed after a short period of filling and solidifying the concrete, the first jig is not firmly adhered to the concrete and can be easily removed. Since the second jig is only mounted and used in the space from which the first jig is removed, it can be easily removed even when used for a long time. The temporary structure is constructed in a stable state by using the second jig for reinforcement.

この発明によれば、アンカー材をコンクリート建造物内に施工性を容易にして確実に埋設できるようになり、これにより、アンカー材の腐食によるコンクリート建造物の強度低下を防止できるようになる。くわえて、補強用の第２の治具を用いていることでアンカー材を使用しての仮設構造体の構築が安定しておこなわれる利点もある。  According to this invention, it becomes possible to embed an anchor material in a concrete building easily and reliably, thereby preventing a decrease in strength of the concrete building due to corrosion of the anchor material. In addition, by using the second jig for reinforcement, there is also an advantage that the construction of the temporary structure using the anchor material is stably performed.

図１はこの発明のコンクリート建造物の建造方法に用いられる第１の治具と第２の治具との外観を示す斜視図である。第１の治具１、第２の治具２はともに鉄製である。第１の治具１は円錐状のカラー部１２と、そのカラー部１２の細径側の端部面中央から一体に凸設される円筒状の係止部１３とからなる。係止部１３の内面と外面とにはともにネジ１４、１５が切られている。カラー部１２の太径側の端部面中央には操作器具である六角による操作用の凹部１６が設けられ、その底面中央の開口１７位置まで上記ネジ１４が連続して設けられている。１９はこの第１の治具１の型枠への取り付け用のボルトである。  FIG. 1 is a perspective view showing the appearance of a first jig and a second jig used in the method for building a concrete building of the present invention. Both the first jig 1 and the second jig 2 are made of iron. The first jig 1 includes a conical collar portion 12 and a cylindrical locking portion 13 that protrudes integrally from the center of the end surface on the narrow diameter side of the collar portion 12. Screws 14 and 15 are cut on both the inner surface and the outer surface of the locking portion 13. At the center of the end surface on the large diameter side of the collar portion 12 is provided a concave portion 16 for operation with a hexagon as an operating tool, and the screw 14 is continuously provided up to the position of the opening 17 at the center of the bottom surface. Reference numeral 19 denotes a bolt for attaching the first jig 1 to the mold.

第２の治具２は上記第１の治具１のカラー部１２と同一の外形寸法を持ち、通孔２１を備えその内径は上記第１の治具１の係止部１３の外径とほぼ等しく形成されている。  The second jig 2 has the same outer dimensions as the collar part 12 of the first jig 1 and has a through hole 21 whose inner diameter is the same as the outer diameter of the locking part 13 of the first jig 1. It is formed almost equally.

以下、図２から図５を参照してこの発明のコンクリート建造物の建造方法を順次説明する。３は筒状のアンカー材、４は型枠であり、アンカー材３と型枠４面間に係止部１３がアンカー材３の端部のネジ３１部分に螺入係止されるとともに、型枠４の外面側からボルト１９が底面中央の開口１７内のネジ１４部分に螺入固定されることで第１の治具１が装着されている。このアンカー材３が取り付けられた型枠４内空間にコンクリート５が充填固化される。  Hereinafter, a concrete building construction method according to the present invention will be sequentially described with reference to FIGS. 3 is a cylindrical anchor material, 4 is a mold frame, and a locking portion 13 is screwed and locked to a screw 31 portion at the end of the anchor material 3 between the anchor material 3 and the surface of the mold frame 4. The first jig 1 is mounted by screwing and fixing bolts 19 from the outer surface side of the frame 4 to the screws 14 in the opening 17 at the center of the bottom surface. Concrete 5 is filled and solidified in the space inside the mold 4 to which the anchor material 3 is attached.

次に、一週間ぐらい経過してコンクリート５の固化が完了すると、ボルト１９を取り外し、凹部１６に六角を装着して回転させることで第１の治具１を取り外す。その際、係止部１３がアンカー材３のネジ３１部分に螺入されていることで第１の治具１が回転により外方に突出してきてその取り出しが容易におこなわれる。図３は第１の治具１を取り外した状態を示し、アンカー材３の端部に相対する部分にスペースＳが形成されている。  Next, when the solidification of the concrete 5 is completed after about one week, the bolt 19 is removed, and the first jig 1 is removed by attaching a hexagon to the recess 16 and rotating it. At that time, since the locking portion 13 is screwed into the screw 31 portion of the anchor material 3, the first jig 1 protrudes outward by rotation and can be easily taken out. FIG. 3 shows a state in which the first jig 1 is removed, and a space S is formed at a portion facing the end of the anchor material 3.

次に、図４に示すように、上記スペースＳに第２の治具２を装着し、その第２の治具２の通孔２１を挿通して仮設用ボルト７をアンカー材３のネジ３１部分にに螺入して取り付け、この仮設用ボルト７を使用して適宜仮設用部材８が取り付けられて仮設構造体がコンクリート建造物の外面に付設構築される。その際仮設用ボルト７は補強用の第２の治具２を介してアンカー材３端部に取り付けられることで、大きな重量の仮設用部材８を安定支持することが可能となる。  Next, as shown in FIG. 4, the second jig 2 is mounted in the space S, and the temporary bolt 7 is inserted into the screw 31 of the anchor member 3 through the through hole 21 of the second jig 2. A temporary member 8 is appropriately attached using the temporary bolt 7 by screwing into the portion, and the temporary structure is attached to the outer surface of the concrete building. At that time, the temporary bolt 7 is attached to the end of the anchor member 3 via the reinforcing second jig 2, so that the heavy temporary member 8 can be stably supported.

次に、二カ月ぐらい経過して仮設構造体を使用しての工事が完了すると、仮設用ボルト７、仮設用部材８が取り外されて仮設構造体が撤去される。それとともに第２の治具２も取り外され、その第２の治具２が取り外されて形成されるスペースＳ内にモルタル５ａが充填固化され、これによりアンカー材３の端部が完全に埋設された状態とされる。  Next, when the construction using the temporary structure is completed after about two months, the temporary bolt 7 and the temporary member 8 are removed, and the temporary structure is removed. At the same time, the second jig 2 is also removed, and the mortar 5a is filled and solidified in the space S formed by removing the second jig 2, whereby the end of the anchor material 3 is completely embedded. It is assumed that

この発明において用いる第１の治具と第２の治具との実施形態の斜視図  The perspective view of embodiment of the 1st jig | tool and 2nd jig | tool used in this invention この発明のコンクリート建造物の建造方法の実施形態の説明断面図  Sectional drawing of description of embodiment of the construction method of the concrete building of this invention この発明のコンクリート建造物の建造方法の実施形態の説明断面図  Sectional drawing of description of embodiment of the construction method of the concrete building of this invention この発明のコンクリート建造物の建造方法の実施形態の説明断面図  Sectional drawing of description of embodiment of the construction method of the concrete building of this invention この発明のコンクリート建造物の建造方法の実施形態の説明断面図  Sectional drawing of description of embodiment of the construction method of the concrete building of this invention

符号の説明Explanation of symbols

１ 第１の治具
２ 第２の治具
３ アンカー材
４ 型枠
５ コンクリート
５ａ モルタル
Ｓ スペースDESCRIPTION OF SYMBOLS 1 1st jig | tool 2 2nd jig | tool 3 Anchor material 4 Formwork 5 Concrete 5a Mortar S Space

Claims (1)

コンクリート建造物内に埋設されるアンカー材の端部面と型枠面との間に、取り外し操作用の凹部を備えるスペース形成用の第１の治具を配置して型枠内にコンクリートを充填固化し、
その固化後に前記凹部を操作することで前記第１の治具を取り外すとともに、そのスペースに第２の治具を装着し、
前記第２の治具を介して前記アンカー材を使用することで前記コンクリート建造物に仮設構造体を付設構築し、
前記仮設構造体の撤去後に前記第２の治具を取り外すとともに、そのスペースを充填物により埋め、
て行なうことを特徴とするコンクリート建造物の建造方法。Place a first jig for forming a space with a recess for removal operation between the end face of the anchor material embedded in the concrete building and the formwork surface to fill the formwork with concrete Solidify,
The first jig is removed by operating the concave portion after the solidification, and the second jig is mounted in the space,
By using the anchor material through the second jig, a temporary structure is attached to the concrete building,
After removing the second jig after removing the temporary structure, the space is filled with a filler,
A method of constructing a concrete structure characterized by
JP2004349108A 2004-11-02 2004-11-02 Construction method of concrete building Expired - Fee Related JP3959500B2 (en)

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JP3959500B2 true JP3959500B2 (en) 2007-08-15

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