JPH0525927A - Assembling and disassembling of prefabricated scaffolding - Google Patents

Abstract

PURPOSE:To improve safety of assembling work and to save labor by enabling assembling and disassembling of a prefabricated scaffolding on the ground. CONSTITUTION:A plurality of parallel standards 4 are connected one by one by a brace 5 and a ledger 6 or a scaffold board to assemble a floor A. To increase the floor A upward, a standard 4 is added to the lower end of the standard 4 in the state of being hung by a crane, and a lower floor A is assembled. By repeating this one by one, assembling work can be conducted on the ground without requiring work at a high position, which enables improvement in safety and labor saving. Also, in disassembling a prefabricated scaffolding, the whole body is hung by the crane, the lower floor is disassembled in the state of floating above the ground, and lowering of the prefabricated scaffolding and disassembling of the lower floor are repeated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、建築物の作業足場と
なる枠組足場を組立てる工法及び解体工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method and a dismantling construction method for assembling a frame scaffold which is a working scaffold for a building.

【０００２】[0002]

【従来の技術】建築物の作業足場として構築される枠組
足場は、並列する複数に建枠をブレースと布枠又は歩み
板で結合して階床を組み立て、この階床を複数段積み重
ねることにより所定の高さに構築するものである。2. Description of the Related Art A frame scaffold constructed as a work scaffold for a building is constructed by connecting a plurality of building frames in parallel with a brace and a cloth frame or a step board to assemble a floor, and stacking the floors in plural stages. It is constructed at a predetermined height.

【０００３】従来、上記のような枠組足場を組立てるに
は、先ず地上において最下位の階床を組み立て、次に各
資材を階床上に持上げて上階の階床を組立て、これを上
方に順次繰返しながら所望の高さに組立てるものであ
る。Conventionally, in order to assemble the above-mentioned frame scaffolding, first, the lowest floor on the ground is assembled, then each material is lifted onto the floor to assemble the upper floor, and this is sequentially arranged upward. It is repeatedly assembled to a desired height.

【０００４】また、構築後の枠組足場を解体するには、
最上位の階床から順に解体を行ない、各資材を地上へ降
すことによって行なうものである。In addition, in order to dismantle the frame scaffold after construction,
This is done by dismantling the highest floor in order and dropping each material to the ground.

【０００５】[0005]

【発明が解決しようとする課題】ところで、上記した従
来の組立方法は、組立てが上方に進むに従って各資材を
持上げなければならず、しかも組立が高所作業となるた
め、作業能率が極めて悪く、手間と時間がかかると共
に、危険をともなうという問題がある。By the way, in the above-mentioned conventional assembling method, each material has to be lifted as the assembling progresses upward, and the assembling requires high work, resulting in extremely poor work efficiency. There is a problem that it takes time and labor and is dangerous.

【０００６】また、従来の解体方法は、上部階床から解
体して行くため、各資材をクレーンで地下に降さなけれ
ばならず、解体が高所作業となるため、作業化に手間と
時間がかかり危険をともなうという問題がある。Further, in the conventional dismantling method, since the dismantling is performed from the upper floor, it is necessary to drop each material to the basement with a crane, and dismantling requires work at a high place. There is a problem that it is overloaded and dangerous.

【０００７】そこで、この発明は、安全に能率よく枠組
足場を構築することができる組立工法と、枠組足場を安
全に能率よく解体できる解体工法を提供することを課題
としている。[0007] Therefore, an object of the present invention is to provide an assembly method capable of safely and efficiently constructing a frame scaffold and a dismantling method capable of safely and efficiently disassembling the frame scaffold.

【０００８】[0008]

【課題を解決するための手段】上記のような課題を解決
するため、第１の発明は、並列する複数の建枠をブレー
スと布枠又は歩み板で順次結合して枠組足場の階床を組
み立て、増床時にこれをクレーンで吊り上げ保持した状
態で各建枠の下に建枠を継ぎ足して下位の階床を組み立
て、これを繰り返して階床を増やして行く方法を採用し
たものである。In order to solve the above problems, a first aspect of the present invention relates to a floor of a frame scaffold by sequentially connecting a plurality of parallel construction frames with a brace and a cloth frame or a step board. When assembling and expanding the floor, it is lifted by a crane and held to add a building frame under each building frame to assemble a lower floor, and this is repeated to increase the floors.

【０００９】同じく第２の発明は、並列する複数の建枠
をブレースと布枠又は歩み板で順次結合して階床を組
み、これを複数段積み重ねて構築した枠組足場の解体に
際し、枠組足場をクレーンで吊り上げ保持した状態で下
位の階床から順に解体する方法を採用したものである。Similarly, a second aspect of the invention is to dispose a frame scaffold constructed by stacking a plurality of stages in parallel by connecting a plurality of parallel construction frames with a brace and a cloth frame or a step board and stacking the floors. It is a method of dismantling the lower floors in order with the cranes being lifted and held by a crane.

【００１０】[0010]

【作用】[Action]

第１の発明 地上において、並列配置した建枠をブレースと布枠又は
歩み板で順次結合して階床を組み立て、階床を上方に増
やすには、地上の階床をクレーンで吊り上げて保持し、
各建枠の下端に建枠の上端を接続して継ぎ足すと共に、
隣接する建枠をブレースと布枠又は歩み板で結合して階
床を組立て、全体を地上に下せば一階床分が増えた枠組
足場となる。1st Invention On the ground, assembling the floors by sequentially connecting the building frames arranged in parallel with the brace and the cloth frame or the step board, and in order to increase the floors upward, the floors on the ground are lifted and held by a crane. ,
While connecting the upper end of the building frame to the lower end of each building frame and adding it,
If the floors are assembled by connecting adjacent building frames with braces and cloth frames or walking boards, and the whole floor is put on the ground, it becomes a frame scaffolding with an increase of one floor.

【００１１】このように、クレーンによる枠組足場の吊
り上げと、建枠下端に対する建枠の継ぎ足しによる階床
の組立てにより、階床の増加を枠組足場の下から行な
え、これによって組立作業が地上において行なえること
になり、資材の持上げや高所作業の必要をなくし、作業
の能率と安全性を向上させる。As described above, the floors can be increased from below the frame scaffolds by lifting the frame scaffolds by the crane and assembling the floors by adding the building frames to the lower ends of the building frames, whereby the assembling work can be performed on the ground. This eliminates the need to lift materials and work in high places, improving work efficiency and safety.

【００１２】第２の発明 地上に構築した枠組足場の解体に際し、枠組足場全体を
クレーンで吊り上げて地上から浮かし、最下位階床を解
体する。Second invention When dismantling the frame scaffold constructed on the ground, the entire frame scaffold is lifted by a crane and floated from the ground to dismantle the lowest floor.

【００１３】この後、枠組足場全体を階床の高さ分だけ
下し、下位階床を解体し、これを繰返して行なうことに
より、解体作業が地上において行なえ、高所作業をなく
して安全性と能率を向上させる。After that, the entire frame scaffolding is lowered by the height of the floor, the lower floors are dismantled, and this is repeated, so that dismantling work can be performed on the ground and safety is avoided by eliminating work at high places. And improve efficiency.

【００１４】[0014]

【実施例】以下、この発明の実施例を添付図面に基づい
て説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.

【００１５】図１と図２のように、枠組足場１は、一対
の縦柱２、２の上部を横桟３で結合した門型や鳥居型に
形成されたパイプ製の建枠４と、対向状に並列する建枠
４の縦柱２を互に連結するブレース５と、対向する建枠
４の横桟３間に架設する布枠６又は歩み板と、上下の建
枠４を互に連結するジョイント７とを用いて組立てられ
ることになる。As shown in FIGS. 1 and 2, the frame scaffold 1 comprises a pipe-shaped building frame 4 formed in a gate type or a torii type in which the upper portions of a pair of vertical columns 2 and 2 are connected by a horizontal crosspiece 3, The brace 5 connecting the vertical columns 2 of the building frames 4 arranged in parallel to each other, the cloth frame 6 or the walking board laid between the horizontal rails 3 of the facing building frame 4, and the upper and lower building frames 4 to each other. It will be assembled using the connecting joint 7.

【００１６】上記建枠４を対向状に起立させ、これをブ
レース５と布枠６又は歩み板で結合することによって階
床Ａが形成され、建枠４の数を選ぶことにより、平面的
に必要な長さの階床Ａを得ることができる。A floor A is formed by erecting the building frames 4 so as to face each other and connecting them with the braces 5 and the cloth frames 6 or step plates. The floor A of the required length can be obtained.

【００１７】上記建枠４には図３のように、両縦柱２、
２の上端にジョイント７が固定され、このジョイント７
の上半部を上位建枠の下端に挿入して結合することによ
り、上下の建枠４を互に接続することができるようにな
っている。As shown in FIG. 3, both the vertical columns 2,
A joint 7 is fixed to the upper end of 2, and the joint 7
The upper and lower building frames 4 can be connected to each other by inserting the upper half part of the upper building frame into the lower end of the upper building frame and connecting them.

【００１８】ジョイント７は図４に示すように、縦柱２
が外嵌する接続パイプ８の中間部外周面に縦柱２の端部
を受ける突条９を周設すると共に、接続パイプ８の内部
にロックユニット１０を収納して形成され、接続パイプ
８は縦柱２の上端に下半部を嵌合し、その下端を径方向
に貫通するピン１１によって縦柱２に固定されている。The joint 7 is, as shown in FIG.
Is formed by accommodating the lock unit 10 inside the connection pipe 8 while surrounding the projection 9 for receiving the end of the vertical column 2 on the outer peripheral surface of the intermediate portion of the connection pipe 8 to which the connection pipe 8 is fitted. The lower half part is fitted to the upper end of the vertical column 2, and the lower end is fixed to the vertical column 2 by a pin 11 penetrating in the radial direction.

【００１９】上記ロックユニット１０は、上下に長い帯
板状に形成した本体１２と、この本体１２の表面側で上
端に突設した結合金属ピン１３と、本体１２の表面側で
中間部の位置に突設した操作ボタン１４と、本体１２の
背面側に取付けたばね１５とで構成され、接続パイプ８
には、突条９の部分に操作ボタン１４の嵌合孔１６と、
上部外周面に金属結合ピン１３の貫通孔１７とが設けら
れている。The lock unit 10 has a main body 12 formed in the shape of a vertically long strip, a coupling metal pin 13 protruding from the upper surface of the main body 12 at the upper end, and an intermediate position on the front surface of the main body 12. It is composed of an operation button 14 projecting on the rear side and a spring 15 attached to the back side of the main body 12,
Includes a fitting hole 16 for the operation button 14 in the protrusion 9.
A through hole 17 for the metal connecting pin 13 is provided on the outer peripheral surface of the upper portion.

【００２０】また、縦柱２の下端側には、接続パイプ８
の上半部に外嵌挿したとき、貫通孔１７と対応する位置
に金属結合ピン１３が嵌合する結合孔１８が設けられて
いる。On the lower end side of the vertical column 2, a connecting pipe 8 is provided.
A coupling hole 18 into which the metal coupling pin 13 fits is provided at a position corresponding to the through hole 17 when the metal coupling pin 13 is externally fitted and inserted.

【００２１】前記ロックユニット１０は接続パイプ８内
へ組込むことによって、ばね１０で本体１２が常時押圧
され、操作ボタン１４が嵌合孔１６から突条９の外面に
突出し、金属結合ピン１３が貫通孔１７から外部に突出
していると共に、操作ボタン１４を押込むと、この操作
ボタン１４の上面に設けた段部１４ａが嵌合孔１６の上
部内端面に係合し、結合ピン１３が貫通孔１７から接続
パイプ８の内部に没入した状態が保持され、接続パイプ
８の上半部と上位縦柱２の抜き差しが支障なく行なえる
ようになっている。When the lock unit 10 is assembled in the connecting pipe 8, the main body 12 is constantly pressed by the spring 10, the operation button 14 projects from the fitting hole 16 to the outer surface of the ridge 9, and the metal connecting pin 13 penetrates. When the operation button 14 is pushed in while protruding to the outside from the hole 17, the stepped portion 14a provided on the upper surface of the operation button 14 engages with the upper inner end surface of the fitting hole 16, and the coupling pin 13 is inserted into the through hole. The state of being immersed in the inside of the connection pipe 8 from 17 is maintained, and the upper half of the connection pipe 8 and the upper vertical column 2 can be inserted and removed without any trouble.

【００２２】また、接続パイプ８と上位縦柱２の結合
は、操作ボタン１４を押し下げて段部１４ａの係止を解
けばよく、金属結合ピン１３は縦柱２の結合孔１８に嵌
合することになる。To connect the connection pipe 8 and the upper vertical column 2, the operation button 14 may be pushed down to unlock the stepped portion 14a, and the metal connecting pin 13 fits into the connecting hole 18 of the vertical column 2. It will be.

【００２３】次に、枠組足場の組立工法を説明する。Next, a method for assembling the frame scaffold will be described.

【００２４】先ず、地上において対向させた建枠４をブ
レース５と布枠６又は歩み板で結合し、これを平面的に
必要な長さだけ繰返すことによって枠組足場の階床Ａを
組立てる。First, the building frame 4 of the frame scaffolding is assembled by connecting the building frames 4 opposed to each other on the ground with the brace 5 and the cloth frame 6 or the step board, and repeating this planarly for the required length.

【００２５】階床Ａを上に増やすには、図１と図２に示
すように、クレーンのフック２１に吊り下げた吊り金具
２２と各建枠４の上部をロープやワイヤ２３で接続し、
仮設足場全体を建枠４の高さ寸法よりも少し高い量だけ
吊り下げて保持する。In order to increase the floor A upward, as shown in FIGS. 1 and 2, the hanging metal fittings 22 hung on the hooks 21 of the crane and the upper parts of the respective building frames 4 are connected by ropes or wires 23,
The entire temporary scaffold is suspended and held by an amount slightly higher than the height of the building frame 4.

【００２６】この状態で各建枠４の下端に地上から建枠
４を継ぎ足す。この継ぎ足しは、縦柱２の上端に取付け
たジョイント７におけるロックユニット１０の操作ボタ
ン１４を押込んで係止し、金属結合ピン１３を没入させ
ておき、持上げた建枠４のジョイント７を上位建枠４に
おける縦柱２の下端に差し込み、この差し込み状態で操
作ボタン１４を操作して係止を解き、金属結合ピン１３
を貫通孔１７と結合孔１８にわたって嵌合させれば、ジ
ョイント７を介して上下の建枠４が連結され、図１によ
うに下位の建枠４は吊り下げられた状態になる。In this state, the building frames 4 are added to the lower end of each building frame 4 from the ground. In this extension, the operation button 14 of the lock unit 10 in the joint 7 attached to the upper end of the vertical column 2 is pushed and locked, the metal coupling pin 13 is immersed, and the joint 7 of the lifted building frame 4 is constructed in a higher order. Insert into the lower end of the vertical column 2 in the frame 4, and operate the operation button 14 in this inserted state to release the lock,
Is fitted over the through hole 17 and the coupling hole 18, the upper and lower building frames 4 are connected via the joint 7, and the lower building frame 4 is suspended as shown in FIG.

【００２７】このようにして、吊り上げた各建枠４の下
端に建枠４を連結すると共に、隣接する建枠相互をブレ
ース５と布枠６又は歩み板で結合すれば階床Ａが組上が
り、この後全体を下降させて接地させれば、階床Ａが一
段増えた枠組足場となる。In this way, the floor A is assembled by connecting the building frames 4 to the lower ends of the hoisted building frames 4 and connecting the adjacent building frames with the brace 5 and the cloth frame 6 or the step board. After that, if the whole is lowered and brought into contact with the ground, the floor A becomes a frame scaffolding with a further increase.

【００２８】上記のように、階床Ａを上方に順次増やす
には、クレーンでの吊り上げと、下方からの継ぎ足しを
順次繰り返して行なえればよく、作業は地上にてすべて
実施できる。As described above, in order to sequentially increase the floor A upward, it is sufficient to carry out lifting by a crane and replenishment from below in sequence, and all the work can be performed on the ground.

【００２９】なお、枠組足場はクレーンでの吊り上げに
より、ジョイント７の部分に引張り荷重がかかることに
なるが、ジョイント７は図４に示したように、接続パイ
プ８と下位建枠の上端がピン１１によって、また、接続
パイプ８と上位建枠の下端とは金属結合ピン１３によっ
て結合されているため、接続部分の耐引張り強度が強
く、クレーンでの吊り上げが支障なく行なえる。In the frame scaffolding, a tensile load is applied to the joint 7 portion by hoisting it with a crane. However, as shown in FIG. 4, the joint pipe 8 and the upper end of the lower building frame are pinned. Since the connection pipe 8 and the lower end of the upper building frame are connected by the metal connecting pin 11, the connection portion has a high tensile strength and the crane can be lifted without any trouble.

【００３０】また、枠組足場の吊り上げ時において、ジ
ョイント７にかかる引張り荷重をなくすには、図２に一
点鎖線で示すように、吊り金具２２に取付けたロープ２
３又はワイヤの枠組足場への接続を最下位建枠の位置に
なるよう選べばよい。In order to eliminate the tensile load applied to the joint 7 when the frame scaffold is hoisted, the rope 2 attached to the hoisting metal fitting 22 as shown by the chain line in FIG.
3 or wire connections to the frame scaffold may be chosen to be at the lowest building position.

【００３１】上記のように組立てた枠組足場の解体は、
組立て時と同様、枠組足場全体をクレーンで吊り上げた
状態で、最下位の階床から順に分解して行けばよい。The disassembly of the frame scaffold assembled as described above is
As with assembly, the entire frame scaffolding can be lifted by a crane and disassembled in order from the lowest floor.

【００３２】即ち、枠組足場全体を地上から浮くように
クレーンで吊り上げ、最下位の階床を解体すると、枠組
足場を階床の高さ分だけ下して下位の階床を解体し、こ
れを順次繰返すことにより、地上での作業によって解体
が行なえる。That is, when the entire frame scaffold is lifted by a crane so as to float above the ground and the lowest floor is dismantled, the frame scaffold is lowered by the height of the floor to dismantle the lower floor, and By repeating it in sequence, dismantling can be performed by work on the ground.

【００３３】なお、解体時におけるロープ又はワイヤの
枠組足場に対する接続は、上部階床の建枠に設定してお
けばよい。The connection of the rope or wire to the frame scaffold at the time of disassembly may be set in the building frame of the upper floor.

【００３４】[0034]

【効果】以上のように、この発明によると、枠組足場の
組立て及び解体がすべて地上において行なえ、組立時及
び解体時の高所作業が一切不要になるので、足場組立て
及び解体の安全性を大幅に向上させることができる。[Effect] As described above, according to the present invention, the assembly and dismantling of the frame scaffolding can be performed on the ground altogether, and no work at a high place is required at the time of assembling and dismantling, so that the safety of scaffolding assembly and dismantling is greatly improved. Can be improved.

【００３５】また、枠組足場を構成する各資材を組立て
及び解体の進行と共に上げ下しするというような作業が
不要となり、しかも組立作業及び解体作業が地上で行な
えるので、作業能率が向上し、省力化を図ることができ
る。Further, the work of raising and lowering each material constituting the frame scaffolding as the assembly and dismantling progress is unnecessary, and since the assembling work and the dismantling work can be performed on the ground, the work efficiency is improved, Labor saving can be achieved.

【図面の簡単な説明】[Brief description of drawings]

【図１】この発明の組立工法を示す組立途中の正面図FIG. 1 is a front view during assembly showing the assembly method of the present invention.

【図２】同上の側面図FIG. 2 is a side view of the above.

【図３】上下建枠の接続部分を示す拡大縦断面図FIG. 3 is an enlarged vertical cross-sectional view showing a connecting portion of upper and lower building frames.

【図４】同上におけるジョイント部分の拡大縦断面図FIG. 4 is an enlarged vertical sectional view of a joint portion of the above.

【符号の説明】[Explanation of symbols]

１ 枠組足場 ２ 縦柱 ４ 建枠 ５ ブレース ６ 布枠 ７ ジョイント ８ 接続パイプ Ａ 階床 1 framework scaffolding 2 vertical columns 4 building frames 5 braces 6 cloth frame 7 joint 8 connection pipes A floor

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 並列する複数の建枠をブレースと布枠又
は歩み板で順次結合して枠組足場の階床を組み立て、増
床時にこれをクレーンで吊り上げ保持した状態で各建枠
の下に建枠を継ぎ足して下位の階床を組み立て、これを
繰り返して階床を増やして行くことを特徴とする枠組足
場の組立工法。1. A floor of a frame scaffolding is assembled by sequentially connecting a plurality of parallel building frames with a brace and a cloth frame or a step board, and when the floors of the framed scaffolding are suspended and held by a crane, they are placed under each building frame. A method for assembling a frame scaffold, which is characterized by adding building frames to assemble lower floors, and repeating this to increase floors. 【請求項２】 並列する複数の建枠をブレースと布枠又
は歩み板で順次結合して階床を組み、これを複数段積み
重ねて構築した枠組足場の解体に際し、枠組足場をクレ
ーンで吊り上げ保持した状態で下位の階床から順に解体
することを特徴とする枠組足場の解体工法。2. When disassembling a frame scaffold constructed by stacking a plurality of stages in which a plurality of parallel building frames are connected in sequence with a brace and a cloth frame or a step board and the floors are stacked, the frame scaffold is lifted and held by a crane. The method of dismantling the frame scaffold, which is characterized by disassembling the lower floors in that order.