JPS59233072A - Destruction of concrete building - Google Patents

Destruction of concrete building

Info

Publication number
JPS59233072A
JPS59233072A JP8788883A JP8788883A JPS59233072A JP S59233072 A JPS59233072 A JP S59233072A JP 8788883 A JP8788883 A JP 8788883A JP 8788883 A JP8788883 A JP 8788883A JP S59233072 A JPS59233072 A JP S59233072A
Authority
JP
Japan
Prior art keywords
concrete
metal
destruction
concrete building
heating
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.)
Pending
Application number
JP8788883A
Other languages
Japanese (ja)
Inventor
大崎 嘉彦
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8788883A priority Critical patent/JPS59233072A/en
Publication of JPS59233072A publication Critical patent/JPS59233072A/en
Pending legal-status Critical Current

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  • Working Measures On Existing Buildindgs (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は、市街地等において金属付人コンクリート建造
物を静かに破壊するだめの、コンクリート建造物の破壊
方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for destroying concrete buildings with metal attendants quietly in urban areas and the like.

従来、金属付人コンクリート建造物を破壊する場合、コ
ンクリートに衝撃体を当てて破壌する方法、コンクリー
ト内に爆薬を仕掛けて建造物全体を一気に破壊する方法
、コンタリート材の内部に膨張剤を注入して破壊する方
法等が採用されているが、いずれも騒音と灰塵の発生が
ある。上記の方法のうち、現在低騒音式破壊方法とされ
ているものは、膨張剤を使用する方法で、これはコンク
リートに穴をあけ、その中に膨張剤を注入し、硬化時の
膨張ガを利用して破壊するものであるが、膨張剤注入孔
の穴明は加工時に大きな騒音が発生する。市街地では更
に静かな破壊が要請されるバ上記の諸方法によるのでは
工期の長期化とコスト高を招くことになる。
Conventionally, when destroying a concrete structure with metal attendants, there were methods such as hitting the concrete with an impacting object to destroy it, planting explosives in the concrete to destroy the entire structure at once, and injecting an expanding agent into the interior of the concrete. Methods such as demolition and destruction have been adopted, but all of these methods generate noise and ash dust. Among the above methods, the one that is currently considered to be a low-noise destruction method is the method that uses an expanding agent.This method involves drilling a hole in the concrete and injecting the expanding agent into the hole to prevent expansion gas during hardening. However, drilling the expansion agent injection hole generates a lot of noise during processing. In urban areas, quieter demolition is required, so using the above methods will result in longer construction periods and higher costs.

本発明は、上記従来の破壊方法の欠点を除去し金属付人
コンクリート建造物を大きな騒音を発生することなく破
壊することを可能とする、コンクリート建造物の破壊方
法を提供することを目的とする。
An object of the present invention is to provide a method for destroying a concrete building, which eliminates the drawbacks of the conventional destruction methods described above and makes it possible to destroy a concrete building with metal attendants without generating a large amount of noise. .

本発明のコンクリート建造物の破壊方法は、金属付人コ
ンクリート建造物の芯材である金属材を、誘導加熱又は
通電加熱によって発熱させることにより、コンクリート
に亀裂を発生させて後工程の機械的破壊を容易にするこ
とを特徴とするものである。以下実施例図によりその詳
細を説明する。
The method for destroying concrete buildings of the present invention involves generating heat in the metal material that is the core material of metal-attached concrete buildings by induction heating or energization heating to generate cracks in the concrete and mechanically destroy it in the subsequent process. It is characterized by facilitating the following. The details will be explained below with reference to embodiment figures.

第、1図は、誘導加熱によりコンクリート建造物を破壊
する場合の本発明の詳細な説明図である。
FIG. 1 is a detailed explanatory diagram of the present invention in the case of destroying a concrete building by induction heating.

これは主として柱或いは幅のせ寸い板状の部分に適用さ
れる。図において、(1)は建造物の金属付人コンクリ
ート材(柱>、(3) i/j:コンクリート材(1)
の内部金属材、(2)はコンクリート材(柱)の外周に
電線を多数回熾き伺けた加熱コイル、(4)は加熱コ1
″ル(2)に接続された電線、5は電線(4)に接続さ
れた交流電源である。(f’、)、(7)は夫々コンク
リート柱を固定している上部コンクリート及び下部コン
クリートを示す。
This is mainly applied to pillars or width plate-like parts. In the figure, (1) is the metal attached concrete material of the building (column>, (3) i/j: concrete material (1)
internal metal material, (2) is a heating coil with electric wires wrapped around the outer circumference of the concrete material (column) many times, and (4) is a heating coil 1.
5 is an AC power source connected to electric wire (4). show.

上記の如く交流電源(5)に接続された加熱コイル(2
)は、電磁誘導現象により、金属討入コンクIJ −ト
材(1)内の金属利(3)に誘導電流を誘起さぜる。こ
れにより金属材(3)の内部に渦電流損が発生し、金属
材は発熱する。この発熱エネルギーによって、コンクリ
ートの熱劣化、コンクリート内結晶水の熱分解水蒸気爆
裂及び金属材の熱膨張等が生起し、コンクリート材(1
)に割れが発生する。
As mentioned above, the heating coil (2) is connected to the AC power source (5).
) induces an induced current in the metal injected concrete (3) in the metal injected concrete IJ-to material (1) by an electromagnetic induction phenomenon. As a result, eddy current loss occurs inside the metal material (3), and the metal material generates heat. This exothermic energy causes thermal deterioration of concrete, thermal decomposition of crystalline water in concrete, steam explosion, thermal expansion of metal materials, etc.
) cracks occur.

第2図は、通電加熱によりコンクリート建造物を破壊す
る場合の本発明の詳細な説明図である。
FIG. 2 is a detailed explanatory diagram of the present invention when a concrete building is destroyed by electrical heating.

通電加熱は主として広い天井或いは床等に適用される。Electric heating is mainly applied to large ceilings or floors.

図において(I ]) i、l:建造物の金属材人コン
クリート天井或いは床、02はコンクリート材(11)
の中の金属材、(1粉は金属材の端部に接続された電線
、!、1ツ)はその電線tJ3)に接続された電源であ
る。
In the figure (I) i, l: Metal materials of the building, concrete ceiling or floor, 02 is concrete material (11)
The metal material inside (1 powder is the electric wire connected to the end of the metal material, !, 1) is the power source connected to the electric wire tJ3).

電、源u、1)に直接接続されたコンクリート内金属材
02)は、金属材の電気抵抗損により発熱する。この発
熱エネルギーによって、第1区の場合と同様に割れ現象
が起る。
The metal material 02) in the concrete directly connected to the power source u, 1) generates heat due to electrical resistance loss of the metal material. Due to this heat generation energy, a cracking phenomenon occurs as in the case of the first section.

第1図、第2図にて、1加熱コイル或い(弓、1金属材
に対して1電源が使用されるように図示されているが、
勿論゛電源の大きさにより1電源にて複数個の被破壊材
を処理することが出来る。
In FIGS. 1 and 2, it is shown that one power source is used for one heating coil or one metal material.
Of course, depending on the size of the power source, it is possible to treat a plurality of materials to be destroyed with one power source.

上述の本発明の方法により発生した割れは、その後の機
械的破壊を容易にするので、破壊のための騒音を低減す
ることが出来るようになる。尚、加熱直後が最も割れ間
隙が大きいことから、加熱後直に機械的破壊を行えば、
より容易に破壊を行うことが出来る。
The cracks generated by the method of the present invention described above facilitate subsequent mechanical destruction, making it possible to reduce the noise caused by the destruction. Furthermore, since the crack gap is largest immediately after heating, if mechanical destruction is performed immediately after heating,
It can be destroyed more easily.

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

第1図は誘導加熱によりコンクリート建造物を、  破
壊する場合の本発明の詳細な説明図、第2図は通電加熱
により破壊を行なう場合の本発明の詳細な説明図である
。 1:金属付人コンクリート材、2:加熱コイル、3:金
属材、4:電線、5:交流電源、6:上部コンクリート
、7:下部コンクリート、11:金属付人コンクリート
材、12:金属材、13:電線、14:1!源。 代理人大岩増雄 第1図 第2図
FIG. 1 is a detailed explanatory diagram of the present invention when a concrete building is destroyed by induction heating, and FIG. 2 is a detailed explanatory diagram of the present invention when the concrete building is destroyed by energization heating. 1: Concrete material with metal, 2: Heating coil, 3: Metal material, 4: Electric wire, 5: AC power supply, 6: Upper concrete, 7: Lower concrete, 11: Concrete material with metal, 12: Metal material, 13: Electric wire, 14:1! source. Agent Masuo Oiwa Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] 金属付人コンクリート建造物の芯材である金属材を 誘
導加熱又は通電加熱によって発熱させることにより、コ
ンクリートに亀裂を発生させて後工程の機械的破壊を容
易にすることを特徴とするコンクリート建造物の破壊方
法。
A concrete building characterized by generating heat in the metal material that is the core material of the metal-attached concrete building by induction heating or energization heating to generate cracks in the concrete and facilitate mechanical destruction in the subsequent process. How to destroy.
JP8788883A 1983-05-17 1983-05-17 Destruction of concrete building Pending JPS59233072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8788883A JPS59233072A (en) 1983-05-17 1983-05-17 Destruction of concrete building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8788883A JPS59233072A (en) 1983-05-17 1983-05-17 Destruction of concrete building

Publications (1)

Publication Number Publication Date
JPS59233072A true JPS59233072A (en) 1984-12-27

Family

ID=13927412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8788883A Pending JPS59233072A (en) 1983-05-17 1983-05-17 Destruction of concrete building

Country Status (1)

Country Link
JP (1) JPS59233072A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07127286A (en) * 1993-11-01 1995-05-16 Kajima Corp Method for demolishing reinforced concrete building
JP2020159080A (en) * 2019-03-27 2020-10-01 戸田建設株式会社 Demolition method of reinforced concrete structure
JP2020172840A (en) * 2019-04-05 2020-10-22 洋美 渡邉 Demolition method of reinforcement concrete and demolition device thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877629A (en) * 1972-01-19 1973-10-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877629A (en) * 1972-01-19 1973-10-18

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07127286A (en) * 1993-11-01 1995-05-16 Kajima Corp Method for demolishing reinforced concrete building
JP2020159080A (en) * 2019-03-27 2020-10-01 戸田建設株式会社 Demolition method of reinforced concrete structure
JP2020172840A (en) * 2019-04-05 2020-10-22 洋美 渡邉 Demolition method of reinforcement concrete and demolition device thereof

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