JP2935967B2 - Demolition method of steel building - Google Patents
Demolition method of steel buildingInfo
- Publication number
- JP2935967B2 JP2935967B2 JP34268995A JP34268995A JP2935967B2 JP 2935967 B2 JP2935967 B2 JP 2935967B2 JP 34268995 A JP34268995 A JP 34268995A JP 34268995 A JP34268995 A JP 34268995A JP 2935967 B2 JP2935967 B2 JP 2935967B2
- Authority
- JP
- Japan
- Prior art keywords
- building
- steel
- temporary
- frame
- steel building
- 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 - Lifetime
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Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ボイラ・鉄骨建屋
のような鉄骨建屋の解体工法に関するもので、特に高層
鉄骨建屋に適した解体工法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of dismantling a steel building such as a boiler / steel building, and more particularly to a dismantling method suitable for a high-rise steel building.
【０００２】[0002]
【従来の技術】従来、ボイラ・鉄骨建屋等の解体作業
は、低層ボイラ・鉄骨建屋等から高層ボイラ・鉄骨建屋
等に至るまで悉く、鉄骨建屋の最上部から解体が開始さ
れ、地下基礎部等の最下部にて終了されていた。しか
し、上記の従来の解体工法では、大掛りな解体装置を鉄
骨建屋の上部に据付ける必要があり、この据付作業が極
めて困難である。しかも、大掛りな解体装置を上部から
下部まで順次移動させる必要があり、この移動のための
装置を別途必要とする上、移動作業が工数や工期を増加
させる要因ともなっていた。また、鉄骨建屋の上部での
解体作業によって発生する屑や粉塵の飛散、落下物の問
題があった。2. Description of the Related Art Conventionally, the dismantling work of a boiler / steel-frame building, etc., from a low-rise boiler / steel-frame building, etc. to a high-rise boiler / steel-frame building, etc., has been started from the top of a steel frame building, and an underground foundation, etc. At the bottom of the However, in the above-mentioned conventional dismantling method, it is necessary to install a large-scale dismantling device on an upper part of a steel frame building, and this installation work is extremely difficult. In addition, it is necessary to sequentially move the large-scale dismantling device from the upper portion to the lower portion, which requires a separate device for this movement, and the moving operation has also caused an increase in the number of steps and the period of work. In addition, there was a problem of scattering of dust and dust generated by dismantling work at the upper part of the steel building, and falling objects.
【０００３】上記対策の一例として、特開平２−２４４
５５号公報（以降先行文献１と云う）に開示されている
解体工法がある。これは図９に示すように、建造物１の
周囲に仮設基礎２を設け、仮設基礎２上に複数のジャッ
キ３を介して複数層に取外し可能なトラス４を立設する
と共に、トラス４と建造物１とを複数箇所で固定し、建
造物１の下層部分を解体する毎にジャッキダウンしてト
ラス４の下層部分の一層分を外し、これを繰返して建造
物１の下層部から上層部へ解体して行く建造物の解体工
法である。As an example of the above countermeasures, Japanese Patent Application Laid-Open No. 2-244
There is a dismantling method disclosed in Japanese Unexamined Patent Publication No. 55 (hereinafter referred to as Prior Document 1). As shown in FIG. 9, a temporary foundation 2 is provided around the building 1, and a plurality of detachable trusses 4 are erected on the temporary foundation 2 via a plurality of jacks 3. The building 1 is fixed at a plurality of locations, and each time the lower part of the building 1 is dismantled, the lower part of the truss 4 is removed by jacking down, and this is repeated to lower the upper part of the building 1 from the lower part. This is a demolishing method for buildings that are being demolished.
【０００４】トラス４は図１０に示すように平面６角形
状のブロック５とＨ鋼６とを組み合わせて構成され、Ｈ
鋼６で画成する三角形の各頂点にブロック５が位置する
ようになっている。そして、各ブロック５とＨ鋼６とは
着脱自在にボルト締めされている。The truss 4 is constructed by combining a flat hexagonal block 5 and an H steel 6 as shown in FIG.
The block 5 is located at each vertex of the triangle defined by the steel 6. Each block 5 and the H steel 6 are detachably bolted.
【０００５】[0005]
【発明が解決しようとする課題】先行文献１に開示され
ている解体工法は、解体装置の取付け、屑や粉塵の飛散
防止、高層鉄骨建屋の落下物の防止等の効果が期待され
る。しかしながら、上記解体工法では建造物１の周面に
トラス４を立設する必要があり、高層の建造物１の場合
は膨大なトラス４の数を必要とし、その組立て、取外し
が煩雑である。また、解体時において、建造物１の解体
部位毎にトラス４の支持部材を取り外す必要があり、解
体作業に時間を要する。そのために、建造物１が高層に
なるほど解体作業が煩雑となり、工数や工期の増加を生
じ易いと云う問題がある。The dismantling method disclosed in the prior art 1 is expected to have effects such as installation of a dismantling device, prevention of scattering of dust and dust, and prevention of falling objects in a high-rise steel frame building. However, in the above-mentioned dismantling method, the truss 4 needs to be erected on the peripheral surface of the building 1, and in the case of the high-rise building 1, a huge number of trusses 4 is required, and assembling and removing the truss 4 are complicated. Further, at the time of dismantling, it is necessary to remove the support member of the truss 4 for each dismantling portion of the building 1, and it takes time for dismantling work. For this reason, there is a problem that the dismantling operation becomes more complicated as the building 1 becomes higher, and the number of steps and the construction period are likely to increase.
【０００６】本発明は上記のような問題点の解決を図っ
たものであり、高所作業を低減し、粉塵等の飛散を防止
し、高層鉄骨建屋でも迅速に解体を行うことの出来る鉄
骨・建屋の解体工法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is intended to reduce work at a high place, prevent scattering of dust and the like, and make it possible to quickly disassemble a high-rise steel building. The purpose is to provide a demolition method for buildings.
【０００７】[0007]
【課題を解決するための手段】本発明は鉄骨建屋の空間
部に、上端部に仮設梁を有する分割型仮設架構を設け
て、その仮設梁に第一群のジャッキを取付け、前記鉄骨
建屋の上端部に仮設架台を設置し、その仮設架台に第二
群のジャッキを取付けて、以下の各工程により鉄骨建屋
を解体することを特徴とした鉄骨建屋の解体工法であ
る。 （イ）鉄骨建屋を第一群のジャッキで吊持しながら、鉄
骨建屋を下端側からブロック切断する工程、（ロ）その
切断したブロックを取除いて鉄骨建屋をジャッキダウン
する工程、（ハ）次に分割型仮設架構を第二群のジャッ
キで吊持しながら、分割型仮設架構の下端側の仮設架構
ブロックを取外す工程、（ニ）その取外した仮設架構ブ
ロックを取除いて分割型仮設架構をジャッキダウンする
工程、（ホ）（イ）〜（ニ）の工程を交互に繰り返しな
がら、前記鉄骨建屋を下端側から上端側に解体する工
程。本発明では上記のような構成であるので、最初に、
鉄骨建屋を第一群のジャッキで、分割型仮設架構を第二
群のジャッキで吊持させれば、そのままの吊持の状態
で、ジャッキダウンを交互に繰り返して、連続的に鉄骨
建屋を下端側から上端側に解体することが出来る。According to the present invention, there is provided a divided temporary frame having a temporary beam at an upper end in a space of a steel frame building, and a first group of jacks is attached to the temporary beam. This is a method for dismantling a steel frame building, comprising installing a temporary frame at an upper end, attaching a second group of jacks to the temporary frame, and dismantling the steel frame building in the following steps. (A) A step of cutting the steel building from the lower end while hanging the steel building with the first group of jacks, (b) a step of removing the cut block and jacking down the steel building, (c) Next, a step of removing the temporary frame block on the lower end side of the split temporary frame while suspending the split temporary frame with the jacks of the second group, (d) removing the removed temporary frame block, and Jacking down, and (e) disassembling the steel building from the lower end to the upper end while alternately repeating the steps (a) to (d). In the present invention, since the configuration is as described above, first,
If the steel frame building is suspended with the first group of jacks and the divided temporary frame is suspended with the second group of jacks, the jack down is repeated alternately in the same suspended state, and the steel frame building is continuously lowered to the lower end. Can be dismantled from side to top.
【０００８】[0008]
【発明の実施の形態】以下に本発明の実施例を図によっ
て詳述する。図１〜図８は本発明の一実施例の工程の状
態を示す側面図である。図１は本発明の解体工法に必要
な仮設架構、ジャッキ等をボイラ・鉄骨建屋に設置した
状態を示す側面図である。鉄骨建屋の高さを符号Ｌで示
す。図１において、１１は分割型仮設架構で上端部に仮
設梁１２を取り付けている。仮設梁１２に第一群のジャ
ッキ１３を取付け、ボイラ・鉄骨建屋１０を上方から吊
持できるようにしている。分割型仮設架構１１は複数の
仮設架構ブロック１１ａを組立てた構造のもので、着脱
可能である。分割型仮設架構１１、第一群のジャッキ１
３等は解体対象の鉄骨建屋１０の空間部に設置されてい
る。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention. 1 to 8 are side views showing the state of the steps in one embodiment of the present invention. FIG. 1 is a side view showing a state in which a temporary frame, a jack, and the like necessary for the demolition method of the present invention are installed in a boiler / steel frame building. The height of the steel building is indicated by the symbol L. In FIG. 1, reference numeral 11 denotes a divided temporary frame to which a temporary beam 12 is attached at the upper end. A first group of jacks 13 is attached to the temporary beam 12, so that the boiler / steel building 10 can be hung from above. The divided temporary frame 11 has a structure in which a plurality of temporary frame blocks 11a are assembled, and is detachable. Divided temporary frame 11, first group jack 1
3 and the like are installed in the space of the steel building 10 to be dismantled.
【０００９】一方、鉄骨建屋１０の上端部には仮設架台
１４が設置され、仮設架台１４に第二群のジャッキ１５
が取付けてられている。ここでは仮設架台１４は鉄骨建
屋１０の屋根を突抜いて設置されている。第二群のジャ
ッキ１５は分割型仮設架構１１を吊持できるようにして
いる。第一群のジャッキ１３、第二群のジャッキ１５の
本数については、解体対象の鉄骨建屋１０によって、適
宜設定される。On the other hand, a temporary gantry 14 is installed at the upper end of the steel building 10, and the second group of jacks 15 is mounted on the temporary gantry 14.
Is installed. Here, the temporary gantry 14 is installed so as to penetrate the roof of the steel building 10. The second group of jacks 15 can suspend the divided temporary frame 11. The number of jacks 13 of the first group and jacks 15 of the second group are appropriately set by the steel building 10 to be dismantled.
【００１０】図２はボイラ・鉄骨建屋の下端側ブロック
を切断した状態を示す側面図である。ボイラ・鉄骨建屋
１０は第一群のジャッキ１３で吊持されながら、ボイラ
・鉄骨建屋の下端側が所定の高さ位置でブロック切断さ
れる。ブロック切断は通常使用されている溶接切断等に
よって行われる。これらは床面に切断装置を設けて行な
われるので作業が容易である。FIG. 2 is a side view showing a state in which the lower end block of the boiler / steel building is cut. While the boiler / steel building 10 is suspended by the jacks 13 of the first group, the lower end of the boiler / steel building is cut into blocks at a predetermined height. Block cutting is performed by commonly used welding cutting or the like. Since these operations are performed by providing a cutting device on the floor, the operation is easy.
【００１１】図３はボイラ・鉄骨建屋をジャッキダウン
させた状態を示す側面図である。切断されたブロックは
取り除かれて、ボイラ・鉄骨建屋１０が第一群のジャッ
キ１３によりジャッキダウンする。ジャッキダウンさせ
たボイラ・鉄骨建屋１０は（Ｌ−ｄ）だけ低くなってガ
イド付仮受台１６に載置される。また、必要に応じて固
定することもできる。FIG. 3 is a side view showing a state in which the boiler / steel building is jacked down. The cut block is removed, and the boiler / steel building 10 is jacked down by the first group of jacks 13. The boiler / steel building 10 whose jack has been lowered is lowered by (Ld) and placed on the temporary holder 16 with guide. Further, it can be fixed as required.
【００１２】図４は仮設架構ブロックを取外した状態を
示す側面図である。分割型仮設架構１１は第二群のジャ
ッキ１５によって吊持されながら、仮設架構ブロックが
取外される。仮設架構ブロックは図示しないピンまたは
ボルトで留めているので、簡単に取外すことができる。FIG. 4 is a side view showing a state where a temporary frame block is removed. While the divided temporary frame 11 is suspended by the jacks 15 of the second group, the temporary frame block is removed. Since the temporary frame block is fastened with pins or bolts (not shown), it can be easily removed.
【００１３】図５は分割型仮設架構をジャッキダウンさ
せた状態を示す側面図である。分割型仮設架構は第二群
のジャッキ１５によりジャッキダウンする。ジャッキダ
ウンさせた分割型仮設架構はピンまたはボルトにより受
台１７に固定される。FIG. 5 is a side view showing a state where the divided temporary frame is jacked down. The split temporary frame is jacked down by the jacks 15 of the second group. The divided temporary frame that has been jacked down is fixed to the receiving table 17 with pins or bolts.
【００１４】図６はボイラ・鉄骨建屋の解体が終了した
状態を示す側面図である。図２〜図５の工程を繰り返し
ながら（Ｌ−ｄ）が０になるまで解体が行われる。ここ
ではボイラ・鉄骨建屋１０の解体が終了し、ボイラ・鉄
骨建屋１０の上端部に設置した仮設架台１４が床面に達
している。分割型仮設架構１１の最後の仮設架構ブロッ
クが第二群のジャッキ１５によって吊持されている。FIG. 6 is a side view showing a state in which dismantling of the boiler / steel building has been completed. Disassembly is performed while repeating the steps of FIGS. 2 to 5 until (Ld) becomes zero. Here, the dismantling of the boiler / steel building 10 has been completed, and the temporary gantry 14 installed at the upper end of the boiler / steel building 10 has reached the floor. The last temporary frame block of the divided temporary frame 11 is suspended by jacks 15 of the second group.
【００１５】図７は最後の仮設架構ブロックを取り除い
た状態を示す側面図である。分割型仮設架構１１の最後
の仮設架構ブロックが第二群のジャッキ１５によって吊
持されて取り除かれ、仮設梁１２が吊持されている。FIG. 7 is a side view showing a state where the last temporary frame block has been removed. The last temporary frame block of the divided temporary frame 11 is suspended and removed by the jacks 15 of the second group, and the temporary beam 12 is suspended.
【００１６】図８は仮設梁をジャッキダウンさせた状態
を示す側面図である。仮設梁１２がジャッキダウンてい
る。この段階で仮設梁１２、仮設架台１４等が全て取り
除かれて、ボイラ・鉄骨建屋１０の解体が完了する。FIG. 8 is a side view showing a state where the temporary beam is jacked down. The temporary beam 12 is jacked down. At this stage, the temporary beams 12, the temporary gantry 14, and the like are all removed, and the dismantling of the boiler / steel frame building 10 is completed.
【００１７】上記実施例ではボイラ・鉄骨建屋１０の解
体について述べたが、鉄骨建屋内にボイラ設備が吊持さ
れている場合でも、同様にしてボイラ設備を鉄骨建屋と
一緒に切断し、解体することが出来る。In the above embodiment, the disassembly of the boiler / steel building 10 has been described. However, even when the boiler equipment is suspended in the steel building, the boiler equipment is cut and dismantled together with the steel building. I can do it.
【００１８】本発明によれば、以下のような効果が得ら
れる。 二つのジャッキ群の交互操作によって鉄骨建屋をジャ
ッキダウンするので、極めて迅速に解体作業が行うこと
ができ工期が短縮できる。 鉄骨建屋を下部から上部へと解体させて行くので、常
に切断、撤去の作業が床面の所定の位置で行うことがで
き、安全で、且つ、作業能率が高く工数が低減できる。 また、低い位置での解体作業であるので、粉塵等の飛
散が少なく、また、落下物による危険性もない。According to the present invention, the following effects can be obtained. Since the steel building is jacked down by alternate operation of the two jack groups, the dismantling work can be performed very quickly, and the construction period can be shortened. Since the steel building is dismantled from the lower part to the upper part, the work of cutting and removing can always be performed at a predetermined position on the floor surface, and the work efficiency is high and the man-hour can be reduced. In addition, since the dismantling operation is performed at a low position, there is little scattering of dust and the like, and there is no danger of falling objects.
【００１９】[0019]
【発明の効果】以上のように本発明に係る解体工法によ
れば、高所作業を低減し、粉塵等の飛散を防止し、高層
鉄骨建屋でも迅速に解体を行うことの出来る。As described above, according to the disassembly method according to the present invention, work in high places can be reduced, dust and the like can be prevented from being scattered, and dismantling can be quickly performed even in a high-rise steel building.
【図１】本発明の解体工法において、必要な仮設架構、
ジャッキ等をボイラ・鉄骨建屋に設置した状態を示す側
面図である。FIG. 1 is a diagram showing a temporary structure required for a demolition method according to the present invention;
It is a side view which shows the state which installed the jack etc. in the boiler and the steel-frame building.
【図２】本発明の解体工法において、ボイラ・鉄骨建屋
の下端側ブロックを切断した状態を示す側面図である。FIG. 2 is a side view showing a state in which a lower end block of a boiler / steel building is cut off in the dismantling method of the present invention.
【図３】本発明の解体工法において、ボイラ・鉄骨建屋
をジャッキダウンさせた状態を示す側面図である。FIG. 3 is a side view showing a state in which the boiler / steel building is jacked down in the dismantling method of the present invention.
【図４】本発明の解体工法において、仮設架構ブロック
を取外した状態を示す側面図である。FIG. 4 is a side view showing a state where a temporary frame block is removed in the dismantling method of the present invention.
【図５】本発明の解体工法において、分割型仮設架構を
ジャッキダウンさせた状態を示す側面図である。FIG. 5 is a side view showing a state in which the divided temporary frame is jacked down in the dismantling method of the present invention.
【図６】本発明の解体工法において、ボイラ・鉄骨建屋
の解体が終了した状態を示す側面図である。FIG. 6 is a side view showing a state in which the dismantling of the boiler / steel building has been completed in the dismantling method of the present invention.
【図７】本発明の解体工法において、最後の仮設架構ブ
ロックを取り除いた状態を示す側面図である。FIG. 7 is a side view showing a state in which the last temporary frame block has been removed in the dismantling method of the present invention.
【図８】本発明の解体工法において、仮設梁をジャッキ
ダウンさせた状態を示す側面図である。FIG. 8 is a side view showing a state where the temporary beam is jacked down in the dismantling method of the present invention.
【図９】従来の建造物の解体工法の一例を示す図であ
る。FIG. 9 is a diagram showing an example of a conventional building dismantling method.
【図１０】図９に用いる鉄骨トラスの一例を示す図であ
る。FIG. 10 is a diagram showing an example of a steel truss used in FIG. 9;
１０ ボイラ・鉄骨建屋 １１ 分割型仮設架構 １１ａ 仮設架構ブロック １２ 仮設梁 １３ 第一群のジャッキ １４ 仮設架台 １５ 第二群のジャッキ １６ ガイド付仮受台 １７ 受台 DESCRIPTION OF SYMBOLS 10 Boiler / steel frame building 11 Split-type temporary frame 11a Temporary frame block 12 Temporary beam 13 First group jack 14 Temporary frame 15 Second group jack 16 Guided temporary cradle 17 Cradle
フロントページの続き (72)発明者 古市 昌久 東京都千代田区神田神保町二丁目四番地 太平電業株式会社内 (58)調査した分野(Int.Cl.6，ＤＢ名) E04G 23/08 Continuation of front page (72) Inventor Masahisa Furuichi 2--4 Kanda Jimbocho, Chiyoda-ku, Tokyo Taihei Electric Industry Co., Ltd. (58) Field surveyed (Int. Cl. 6 , DB name) E04G 23/08
Claims (1)
有する分割型仮設架構を設けて、その仮設梁に第一群の
ジャッキを取付け、前記鉄骨建屋の上端部に仮設架台を
設置し、その仮設架台に第二群のジャッキを取付けて、
以下の各工程により鉄骨建屋を解体することを特徴とし
た鉄骨建屋の解体工法。 （イ）鉄骨建屋を第一群のジャッキで吊持しながら、鉄
骨建屋を下端側からブロック切断する工程、（ロ）その
切断したブロックを取除いて鉄骨建屋をジャッキダウン
する工程、（ハ）次に分割型仮設架構を第二群のジャッ
キで吊持しながら、分割型仮設架構の下端側の仮設架構
ブロックを取外す工程、（ニ）その取外した仮設架構ブ
ロックを取除いて分割型仮設架構をジャッキダウンする
工程、（ホ）（イ）〜（ニ）の工程を交互に繰り返しな
がら、前記鉄骨建屋を下端側から上端側に解体する工
程。1. A divided temporary frame having a temporary beam at an upper end thereof is provided in a space of a steel building, a first group of jacks is attached to the temporary beam, and a temporary frame is installed at an upper end of the steel building. Then, attach the second group of jacks to the temporary base,
Dismantling method of steel frame building, which dismantles steel frame building by the following processes. (A) A step of cutting the steel building from the lower end while hanging the steel building with the first group of jacks, (b) a step of removing the cut block and jacking down the steel building, (c) Next, a step of removing the temporary frame block on the lower end side of the split temporary frame while suspending the split temporary frame with the jacks of the second group, (d) removing the removed temporary frame block, and Jacking down, and (e) disassembling the steel building from the lower end to the upper end while alternately repeating the steps (a) to (d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34268995A JP2935967B2 (en) | 1995-12-28 | 1995-12-28 | Demolition method of steel building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34268995A JP2935967B2 (en) | 1995-12-28 | 1995-12-28 | Demolition method of steel building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09184306A JPH09184306A (en) | 1997-07-15 |
| JP2935967B2 true JP2935967B2 (en) | 1999-08-16 |
Family
ID=18355739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34268995A Expired - Lifetime JP2935967B2 (en) | 1995-12-28 | 1995-12-28 | Demolition method of steel building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2935967B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021779B (en) * | 2019-12-19 | 2023-03-31 | 中建钢构工程有限公司 | Integral descending and dismantling construction method for space net rack and auxiliary supporting mechanism |
-
1995
- 1995-12-28 JP JP34268995A patent/JP2935967B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09184306A (en) | 1997-07-15 |
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