JPH11159155A - Support device for temporary column, and demolition of boiler and boiler building - Google Patents
Support device for temporary column, and demolition of boiler and boiler buildingInfo
- Publication number
- JPH11159155A JPH11159155A JP32827897A JP32827897A JPH11159155A JP H11159155 A JPH11159155 A JP H11159155A JP 32827897 A JP32827897 A JP 32827897A JP 32827897 A JP32827897 A JP 32827897A JP H11159155 A JPH11159155 A JP H11159155A
- Authority
- JP
- Japan
- Prior art keywords
- boiler
- temporary
- column
- building
- pillar
- 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
Links
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば火力発電所
などに設置されているボイラを、その建屋と共に解体す
る技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for dismantling a boiler installed in, for example, a thermal power plant together with its building.
【０００２】[0002]
【発明が解決しようとする課題】火力発電所に設置され
ている大型の吊り下げ式ボイラは、その耐用年数経過後
に建屋と共に解体されるわけであるが、ボイラ重量が極
めて大きく、その上、作業の大半が高所にて行われるこ
とから、解体には多大な困難を伴う。そこで、ボイラを
少しずつ降下させながら下部から解体していく方法（例
えば特開平６−３２３５０４号公報に開示される解体方
法）が用いられるようになった。更に詳しく言えば、こ
の解体方法は、ボイラを吊るトップガーダに設置した複
数のジャッキを用いて、トップガーダから切り離したボ
イラを段階的に降下させ、その都度降下させた分だけボ
イラを下部から解体していくことを特徴とする。一方、
ボイラ建屋については、ボイラの解体が完了した後、上
部から解体することになる。The large hanging boiler installed in the thermal power plant is dismantled together with the building after the service life of the boiler has elapsed. Most of the work is performed at high altitudes, so dismantling is very difficult. Therefore, a method of disassembling the boiler from below while lowering the boiler little by little (for example, a dismantling method disclosed in JP-A-6-323504) has been used. More specifically, in this dismantling method, the boiler separated from the top girder is lowered stepwise using a plurality of jacks installed on the top girder suspending the boiler, and the boiler is dismantled from the lower part by the amount lowered each time. It is characterized by doing. on the other hand,
The boiler building will be dismantled from the top after the dismantling of the boiler is completed.
【０００３】ところで、こうした解体方法にも改善を必
要とする点があった。すなわち、ボイラの解体が完了す
るまで、トップガーダはボイラ建屋の本設柱で本来の位
置に支持されている必要がある。このため、ボイラの解
体とボイラ建屋の解体とを同時に進めることはできなか
った。近年、工期の短縮が強く求められており、ボイラ
の解体とボイラ建屋の解体とを並行実施できる技術の開
発が待たれていた。[0003] By the way, there has been a point that such a dismantling method needs improvement. That is, the top girder needs to be supported in its original position by the main pillar of the boiler building until the boiler is completely dismantled. For this reason, the dismantling of the boiler and the dismantling of the boiler building could not proceed at the same time. In recent years, shortening of the construction period has been strongly demanded, and development of a technology capable of performing dismantling of a boiler and dismantling of a boiler building in parallel has been awaited.
【０００４】したがって、本発明が解決しようとする課
題は、ボイラとボイラ建屋とを同時に解体することが可
能で、作業の効率化が図れ、工期を短縮できるボイラ及
びボイラ建屋の解体技術を提供することである。[0004] Therefore, an object of the present invention is to provide a boiler and a boiler building dismantling technique which can dismantle the boiler and the boiler building at the same time, which can improve the work efficiency and shorten the construction period. That is.
【０００５】[0005]
【課題を解決するための手段】上記の課題は、仮設柱の
下端側の支持に用いられる装置であって、脚部と、この
脚部間に設けられ、前記仮設柱が挿通させられる荷重受
け梁部とを有する架台と、この架台の荷重受け梁部に設
けられたジャッキと、このジャッキから延びる吊り材に
連結され、前記仮設柱の下端部が載置させられる柱受け
部材とを具備してなることを特徴とする仮設柱支持装置
によって解決される。An object of the present invention is to provide a device used for supporting a lower end side of a temporary column, and a leg, and a load receiving member provided between the legs and through which the temporary column is inserted. A stand having a beam portion, a jack provided on a load receiving beam portion of the stand, and a column receiving member connected to a suspending member extending from the jack and on which a lower end portion of the temporary column is placed. The problem is solved by a temporary column support device characterized by the following.
【０００６】なお、この仮設柱支持装置は、架台の荷重
受け梁部において仮設柱を挟む二つの位置に、ジャッキ
から延びる吊り材を挿通させるための貫通孔が形成され
てなり、かつ、前記ジャッキは、前記荷重受け梁部の貫
通孔に対応した位置にそれぞれ設けられてなり、更に、
柱受け部材は、前記荷重受け梁部の貫通孔から突出する
二つの吊り材の下端側に連結されてなる構造とすること
ができる。In this temporary column support device, a through hole is formed at two positions on the load receiving beam portion of the gantry, sandwiching the temporary column, through which a suspending member extending from the jack is inserted. Are provided at positions corresponding to the through holes of the load receiving beam portion, respectively.
The column receiving member may be configured to be connected to lower ends of two hanging members protruding from the through holes of the load receiving beam portion.
【０００７】また、上記の課題は、ボイラの周囲に、こ
のボイラを挟んで互いに対向するよう仮設柱を立設する
Ａ工程と、前記ボイラを吊る本設梁を前記仮設柱の上端
側に連結するＢ工程と、前記本設梁をボイラ建屋から切
り離すＣ工程と、前記仮設柱を段階的に短くしていくこ
とで、前記ボイラを前記本設梁と共に降下させるＤ工程
と、降下させた前記ボイラを下部から解体するＥ工程
と、前記ボイラ建屋を上部から解体するＦ工程とを具備
することを特徴とするボイラ及びボイラ建屋の解体方法
によって解決される。[0007] Further, the above-mentioned problems are caused by an A step of erecting temporary columns around the boiler so as to face each other with the boiler interposed therebetween, and connecting a main beam for suspending the boiler to an upper end side of the temporary columns. B process, a C process of separating the permanent beam from the boiler building, a D process of lowering the boiler together with the permanent beam by gradually shortening the temporary pillar, and A boiler and a method for dismantling a boiler building, comprising: an E step for dismantling the boiler from below, and an F step for dismantling the boiler building from above.
【０００８】特に、本発明の課題は、上記仮設柱支持装
置を用いたボイラ及びボイラ建屋の解体方法であって、
所定長さの単位柱を複数本連結してなる仮設柱を、ボイ
ラの周囲に、このボイラを挟んで互いに対向するよう前
記仮設柱支持装置を用いて立設するＧ工程と、前記ボイ
ラを吊る本設梁を前記仮設柱の上端側に連結するＨ工程
と、前記本設梁をボイラ建屋から切り離すＩ工程と、ジ
ャッキを作動させて吊り材を繰り出し、前記仮設柱を前
記単位柱の長さに相当する量だけ降下させるＪ工程と、
降下させた前記仮設柱を架台に対して位置固定するＫ工
程と、降下させた前記仮設柱を構成する単位柱のうちで
最も下方に位置するものを取り外すＬ工程と、前記ジャ
ッキを作動させて柱受け部材を上昇させ、前記仮設柱の
下端部に前記柱受け部材を当接させるＭ工程と、前記仮
設柱の前記架台に対する位置固定状態を解除し、前記仮
設柱の下端部が前記柱受け部材に載置された状態とする
Ｎ工程と、前記仮設柱の降下に伴い、前記本設梁と共に
降下させられる前記ボイラを下部から解体するＯ工程
と、前記ボイラ建屋を上部から解体するＰ工程とを具備
し、前記Ｊ工程、Ｋ工程、Ｌ工程、Ｍ工程、Ｎ工程、Ｏ
工程、Ｐ工程を必要に応じて繰り返し実施することを特
徴とするボイラ及びボイラ建屋の解体方法によって解決
される。[0008] In particular, an object of the present invention is a method for dismantling a boiler and a boiler building using the temporary column support device,
A step G of erecting a temporary column formed by connecting a plurality of unit columns of a predetermined length around the boiler using the temporary column supporting device so as to face each other with the boiler interposed therebetween, and suspending the boiler; An H step of connecting the main beam to the upper end side of the temporary column, an I step of separating the main beam from the boiler building, and operating a jack to feed out a hanging material; J step of lowering by an amount corresponding to
K step of fixing the lowered temporary column with respect to the gantry, L step of removing the lowest unit column among the unit columns constituting the lowered temporary column, and operating the jack An M step of raising the column receiving member and bringing the column receiving member into contact with the lower end of the temporary column, and releasing the position fixing state of the temporary column with respect to the gantry, and the lower end of the temporary column is An N step of being placed on a member, an O step of dismantling the boiler lowered from the lower part together with the permanent beam as the temporary pillar descends, and a P step of dismantling the boiler building from the upper part And the above-mentioned J step, K step, L step, M step, N step, O step
The step and the step P are repeatedly performed as necessary, and the problem is solved by a method for dismantling a boiler and a boiler building.
【０００９】なお、上記ボイラ及びボイラ建屋の解体方
法では、単位柱としてツバ部が形成されたものを使用
し、前記単位柱のツバ部と架台の荷重受け梁部との間に
カンヌキ部材を配することにより、仮設柱を前記架台に
対して位置固定することができる。また、本設梁を仮設
柱の上端側に連結するに際しては、前記仮設柱の上端面
を前記本設梁に当接させ、前記仮設柱と前記本設梁とを
接合すると共に、前記仮設柱と、前記本設梁の端部に存
在させた鉛直材とを水平材によって緊結してなることが
好ましい。これによって、仮設柱による本設梁の支持状
態は更に安定したものとなる。In the method for dismantling the boiler and the boiler building, a unit column having a flange is used, and a cannula member is arranged between the flange of the unit column and the load receiving beam of the gantry. By doing so, the position of the temporary pillar can be fixed to the gantry. When connecting the temporary beam to the upper end side of the temporary pillar, the upper end surface of the temporary pillar is brought into contact with the permanent beam, and the temporary pillar and the permanent beam are joined, and the temporary pillar is connected to the temporary pillar. It is preferable that a horizontal member is used to connect the vertical beam existing at the end of the main beam to the vertical member. Thereby, the support state of the permanent beam by the temporary pillar becomes more stable.
【００１０】上述したように、本発明では、ボイラの周
囲に、このボイラを挟んで互いに対向するよう仮設柱を
立設すると共に、ボイラを吊る本設梁をこの仮設柱の上
端側に連結し、本設梁をボイラ建屋から切り離した後、
仮設柱を段階的に短くしていくことで、ボイラを本設梁
と共に降下させ、ボイラ及びボイラ建屋の解体を行うよ
うにした。特に、仮設柱を段階的に短くする工程では、
脚部、およびこの脚部間に設けられ、仮設柱が挿通させ
られる荷重受け梁部を有する架台と、この架台の荷重受
け梁部に設けられたジャッキと、このジャッキから延び
る吊り材に連結され、仮設柱の下端部が載置させられる
柱受け部材とを具備してなる仮設柱支持装置を用いて作
業を行うようにした。すなわち、本発明では、ボイラ解
体中、この解体されるボイラの鉛直荷重の支持をボイラ
建屋（特にその本設柱）によってではなく、仮設柱によ
って行うようにしている。言い換えれば、解体中のボイ
ラの支持状態が、ボイラ建屋には全く依存せずに得られ
るようにした。したがって、ボイラ建屋をボイラの解体
が完了するまで残しておく必要はなく、ボイラの解体作
業と並行して、ボイラ建屋の解体作業を実施することが
可能である。ゆえに、従来技術に比べて作業効率に優
れ、ボイラ及びボイラ建屋の解体に要する工期を大幅に
短縮することができる。なお、本発明の技術では、解体
中のボイラを支持する仮設柱についても、ボイラの降下
に伴って、その降下量に相当する分だけ撤去するように
した。よって、仮設柱の設置が解体作業の工期に影響を
与えることはない。As described above, according to the present invention, a temporary pillar is erected around the boiler so as to face each other with the boiler interposed therebetween, and a permanent beam for suspending the boiler is connected to the upper end side of the temporary pillar. After separating the main beam from the boiler building,
By gradually shortening the temporary columns, the boiler was lowered together with the main beams, and the boiler and the boiler building were dismantled. In particular, in the process of gradually shortening temporary pillars,
A leg, and a pedestal having a load receiving beam provided between the legs and through which the temporary pillar is inserted, a jack provided on the load receiving beam of the pedestal, and a suspension member extending from the jack. The work is performed using a temporary column support device including a column receiving member on which the lower end of the temporary column is placed. That is, in the present invention, during the dismantling of the boiler, the vertical load of the boiler to be disassembled is supported not by the boiler building (especially its main pillar) but by a temporary pillar. In other words, the support state of the boiler being dismantled can be obtained without depending on the boiler building at all. Therefore, it is not necessary to keep the boiler building until the boiler is completely dismantled, and the boiler building can be dismantled in parallel with the boiler dismantling work. Therefore, the work efficiency is superior to that of the related art, and the construction period required for dismantling the boiler and the boiler building can be significantly reduced. In the technology of the present invention, the temporary pillars supporting the boiler being dismantled are also removed by an amount corresponding to the amount of the descent as the boiler is lowered. Therefore, the installation of the temporary columns does not affect the construction period of the dismantling work.
【００１１】[0011]
【発明の実施の形態】以下で本発明の一実施形態として
説明する仮設柱支持装置は、仮設柱の下端側の支持に用
いられるものであって、脚部、及びこの脚部間に設けら
れ、前記仮設柱が挿通させられる荷重受け梁部を有する
架台と、この架台の荷重受け梁部に設けられたジャッキ
と、このジャッキから延びる吊り材に連結され、前記仮
設柱の下端部が載置させられる柱受け部材とを具備して
いる。特に本実施形態では、架台の荷重受け梁部におい
て仮設柱を挟む二つの位置に、ジャッキから延びる吊り
材を挿通させるための貫通孔を形成し、ジャッキを前記
荷重受け梁部の貫通孔に対応した位置にそれぞれ設けて
おり、更に柱受け部材を前記荷重受け梁部の貫通孔から
突出する二つの吊り材の下端側に連結している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A temporary column supporting device described below as an embodiment of the present invention is used for supporting a lower end side of a temporary column, and is provided with legs and between the legs. A frame having a load receiving beam portion through which the temporary column is inserted, a jack provided on the load receiving beam portion of the frame, and a hanging member extending from the jack, and a lower end portion of the temporary column is mounted. And a column receiving member. In particular, in the present embodiment, through holes are formed in the load receiving beam portion of the gantry at two positions sandwiching the temporary column to allow a hanging member extending from the jack to pass therethrough, and the jack corresponds to the through hole of the load receiving beam portion. And a column receiving member is connected to lower ends of two suspension members projecting from the through holes of the load receiving beam portion.
【００１２】また、同じく以下で本発明の一実施形態と
して説明するボイラ及びボイラ建屋の解体方法は、上記
仮設柱支持装置を用いて実施されるものであって、所定
長さの単位柱を複数本連結してなる仮設柱を、ボイラの
周囲に、このボイラを挟んで互いに対向するよう前記仮
設柱支持装置を用いて立設するＧ工程と、前記ボイラを
吊る本設梁を前記仮設柱の上端側に連結するＨ工程と、
前記本設梁をボイラ建屋から切り離すＩ工程と、ジャッ
キを作動させて吊り材を繰り出し、前記仮設柱を前記単
位柱の長さに相当する量だけ降下させるＪ工程と、降下
させた前記仮設柱を架台に対して位置固定するＫ工程
と、降下させた前記仮設柱を構成する単位柱のうちで最
も下方に位置するものを取り外すＬ工程と、前記ジャッ
キを作動させて柱受け部材を上昇させ、前記仮設柱の下
端部に前記柱受け部材を当接させるＭ工程と、前記仮設
柱の前記架台に対する位置固定状態を解除し、前記仮設
柱の下端部が前記柱受け部材に載置された状態とするＮ
工程と、前記仮設柱の降下に伴い、前記本設梁と共に降
下させられる前記ボイラを下部から解体するＯ工程と、
前記ボイラ建屋を上部から解体するＰ工程とを具備し、
前記Ｊ工程、Ｋ工程、Ｌ工程、Ｍ工程、Ｎ工程、Ｏ工
程、Ｐ工程を必要に応じて繰り返し実施することを特徴
とする。なお、本実施形態のボイラ及びボイラ建屋の解
体方法では、単位柱としてツバ部が形成されたものを使
用し、前記単位柱のツバ部と架台の荷重受け梁部との間
にカンヌキ部材を配することにより、仮設柱を前記架台
に対して位置固定するようにした。また、本設梁を仮設
柱の上端側に連結するに際し、前記仮設柱の上端面を前
記本設梁に当接させ、前記仮設柱と前記本設梁とを接合
すると共に、前記仮設柱と、前記本設梁の端部に存在さ
せた鉛直材とを水平材によって緊結するようにした。Also, a method of dismantling a boiler and a boiler building, which will be described below as an embodiment of the present invention, is carried out using the above-mentioned temporary column support device, and comprises a plurality of unit columns having a predetermined length. A step G of erecting the temporarily connected temporary pillars around the boiler using the temporary pillar supporting device so as to face each other with the boiler interposed therebetween, and a permanent beam for suspending the boiler is provided on the temporary pillars. H step connecting to the upper end side,
An I step of separating the main beam from the boiler building, a J step of operating a jack to draw out a hanging material, and lowering the temporary column by an amount corresponding to the length of the unit column, and a step of lowering the temporary column A K step of fixing the position of the column to the gantry, an L step of removing the lowest one of the unit columns constituting the lowered temporary column, and raising the column receiving member by operating the jack. An M step of contacting the column receiving member with the lower end of the temporary column, and releasing the position fixing state of the temporary column with respect to the gantry, and the lower end of the temporary column was placed on the column receiving member. N to state
An O step of disassembling the boiler lowered from the lower part together with the main beam with the lowering of the temporary pillar,
P step of dismantling the boiler building from above,
The method is characterized in that the steps J, K, L, M, N, O, and P are repeated as necessary. In the method for dismantling the boiler and the boiler building according to the present embodiment, a unit column having a flange formed is used, and a cannula member is disposed between the flange of the unit column and the load receiving beam of the gantry. By doing so, the position of the temporary pillar was fixed to the gantry. Further, when connecting the temporary beam to the upper end side of the temporary pillar, the upper end surface of the temporary pillar is brought into contact with the permanent beam, and the temporary pillar and the permanent beam are joined, and the temporary pillar is connected to the temporary pillar. The horizontal member is connected to the vertical member existing at the end of the main beam.
【００１３】続いて、図１〜図１４を用いて、本発明の
実施形態を更に詳しく説明する。なお、図１は本解体作
業の準備が完了した状態を示すボイラ及びボイラ建屋の
外観図、図２は図１と同じ状態でのボイラ建屋の断面
図、図３は仮設柱と本設梁（トップガーダ）との連結部
分の拡大図、図４は仮設柱支持装置の構造を示す正面
図、図５は図４におけるＸ−Ｘ線での断面図、図６は仮
設柱を単位柱の長さに相当する量だけ降下させた状態で
の仮設柱支持装置の正面図、図７は降下させた仮設柱を
架台に対して位置固定した状態での仮設柱支持装置の正
面図、図８は図７と同じ状態での仮設柱支持装置の平面
図、図９は仮設柱を構成する単位柱のうちで最も下方に
位置するものを取り外した状態での仮設柱支持装置の正
面図、図１０は柱受け部材を上昇させ、仮設柱の下端部
に当接させた状態での仮設柱支持装置の正面図、図１１
は仮設柱の架台に対する位置固定状態を解除した状態で
の仮設柱支持装置の正面図、図１２はボイラを１段分降
下させた状態を示すボイラ建屋の断面図、図１３はボイ
ラ及びボイラ建屋の解体が１段分完了した状態を示すボ
イラ建屋の断面図、図１４はボイラを最終降下させる直
前の状態を示すボイラ建屋の断面図である。Next, an embodiment of the present invention will be described in more detail with reference to FIGS. 1 is an external view of a boiler and a boiler building showing a state in which preparations for this dismantling work have been completed, FIG. 2 is a cross-sectional view of the boiler building in the same state as FIG. 1, and FIG. FIG. 4 is a front view showing the structure of the temporary column support device, FIG. 5 is a cross-sectional view taken along line XX in FIG. 4, and FIG. FIG. 7 is a front view of the temporary column support device in a state where the temporary column support device is lowered by an amount corresponding to the height, FIG. 7 is a front view of the temporary column support device in a state where the lowered temporary column is fixed to the gantry, and FIG. FIG. 9 is a plan view of the temporary column supporting device in the same state as FIG. 7, and FIG. 9 is a front view of the temporary column supporting device in a state where the lowermost one of the unit columns constituting the temporary column is removed. FIG. 11 is a front view of the temporary column supporting device in a state where the column receiving member is raised and is brought into contact with the lower end of the temporary column.
Is a front view of the temporary column support device in a state where the position of the temporary columns with respect to the gantry has been released, FIG. 12 is a cross-sectional view of the boiler building showing a state in which the boiler is lowered by one stage, and FIG. 13 is a boiler and boiler building 14 is a cross-sectional view of the boiler building showing a state in which the dismantling of one stage is completed, and FIG. 14 is a cross-sectional view of the boiler building showing a state immediately before the boiler is finally lowered.
【００１４】本実施形態の解体方法では、ボイラ１及び
ボイラ建屋２の本解体に先立って、図１や図２に示すご
とく、ボイラ建屋２の内部に、仮設柱３、及びこの仮設
柱３の下端側を支持する仮設柱支持装置４を設ける。こ
のうち仮設柱３は、ボイラ１の周囲に、このボイラ１を
挟んで互いに対向するよう２本一組で計４組立設する
〔Ｇ（Ａ）工程〕。但し、本実施形態では、仮設柱３と
して、特に図２から判るように、１本の長さが数ｍ程度
の単位柱５を複数本連結してなるものを用いた。なお、
単位柱５の中央にはツバ部５ａが形成されている。この
ツバ部５ａの役割については後に詳述するが、一言でい
えば、仮設柱３を一時的に位置固定する際に使用され
る。In the dismantling method of this embodiment, prior to the actual dismantling of the boiler 1 and the boiler building 2, as shown in FIGS. 1 and 2, the temporary pillar 3 and the temporary pillar 3 are provided inside the boiler building 2. A temporary column support device 4 for supporting the lower end side is provided. Of these, the temporary columns 3 are assembled around the boiler 1 so that a total of four temporary columns 3 are opposed to each other across the boiler 1 [G (A) step]. However, in the present embodiment, as the temporary pillar 3, a pillar formed by connecting a plurality of unit pillars 5 each having a length of about several meters as shown in FIG. 2 is used. In addition,
A flange 5a is formed at the center of the unit column 5. The role of the brim portion 5a will be described in detail later. In short, it is used when the temporary pillar 3 is temporarily fixed in position.
【００１５】上記のごとく仮設柱３を立設させたなら
ば、更にその上端側を、ボイラ１を吊る本設梁であるト
ップガーダ６に連結する〔Ｈ（Ｂ）工程〕。この連結状
態は、図３に示すとおりである。すなわち、仮設柱３の
上端面をトップガーダ６に当接させ、ボルト締めによっ
て両者を接合する。そして、仮設柱３と、トップガーダ
６の端部に設けた鉛直材７とを水平材８によって緊結す
ることにより得られる。なお、図３に示すのは、解体作
業が始まった後の様態である。仮設柱３をトップガーダ
６に連結した時点では、トップガーダ６はボイラ建屋２
の本設柱９によって支持された状態となっている。After the temporary pillar 3 is erected as described above, the upper end side is further connected to a top girder 6 which is a permanent beam for suspending the boiler 1 [H (B) step]. This connection state is as shown in FIG. That is, the upper end surface of the temporary pillar 3 is brought into contact with the top girder 6, and the two are joined by bolting. Then, the temporary column 3 and the vertical member 7 provided at the end of the top girder 6 are joined by a horizontal member 8. FIG. 3 shows the state after the dismantling operation has started. When the temporary pillar 3 is connected to the top girder 6, the top girder 6 is in the boiler building 2
In a state supported by the main pillar 9.
【００１６】続いて、仮設柱３の下端側を支持する仮設
柱支持装置４について説明する。仮設柱支持装置４も、
仮設柱３と同様、２個一組で計４組設けられている。そ
のうちの一つを図４に示す（これと対になる仮設柱支持
装置についても、その構造は図４に示すものと同じであ
るから説明は省略する）。図４から判るように、本実施
形態の仮設柱支持装置４は、門型の架台１０、この架台
１０にセットされた二つのジャッキ１１，１２、そし
て、これらジャッキ１１，１２から延びるワイヤ（吊り
材）１１ａ，１２ａに連結された柱受け部材１３からな
る。Next, the temporary column supporting device 4 for supporting the lower end of the temporary column 3 will be described. The temporary column support device 4 also
Like the temporary pillar 3, a total of four sets are provided in pairs. One of them is shown in FIG. 4 (the structure of the paired temporary column supporting device is the same as that shown in FIG. 4 and the description is omitted). As can be seen from FIG. 4, the temporary column support device 4 of the present embodiment includes a gate-shaped gantry 10, two jacks 11 and 12 set on the gantry 10, and wires (suspending) extending from the jacks 11 and 12. (Material) 11a, 12a.
【００１７】このうち門型の架台１０は、一対の脚部１
４ａ，１４ｂと、この脚部１４ａ，１４ｂ間に設けた荷
重受け梁部１５とから構成される。特に、荷重受け梁部
１５の中央には、図５から判るように、矩形状の切欠き
１６が形成されている。この切欠き１６は仮設柱３を挿
通させるためのものであり、上述したように、仮設柱３
を構成する単位柱５がツバ部５ａを有することから、切
欠き１６は、このツバ部５ａと干渉しないよう、ツバ部
５ａよりもいくらか大きくなっている。Among these, the gate-shaped gantry 10 has a pair of legs 1
4a, 14b and a load receiving beam 15 provided between the legs 14a, 14b. In particular, a rectangular notch 16 is formed at the center of the load receiving beam portion 15, as can be seen from FIG. This notch 16 is for inserting the temporary column 3 and, as described above, the temporary column 3
The notch 16 is slightly larger than the brim portion 5a so as not to interfere with the brim portion 5a.
【００１８】一方、ジャッキ１１，１２は、荷重受け梁
部１５上の切欠き１６を挟む位置に設けられている。荷
重受け梁部１５における切欠き１６（あるいは仮設柱
３）を挟む２か所、すなわちジャッキ１１，１２が設け
られた位置には、貫通孔（図示せず）が形成されてい
る。この貫通孔は、ジャッキ１１，１２からそれぞれ延
びるワイヤ１１ａ，１２ａを挿通させるためのものであ
る。仮設柱３の下端部が載置させられる柱受け部材１３
は、荷重受け梁部１５の貫通孔から突出するワイヤ１１
ａ，１２ａの下端に連結される。On the other hand, the jacks 11 and 12 are provided at positions sandwiching the notch 16 on the load receiving beam portion 15. Through holes (not shown) are formed at two places of the load receiving beam portion 15 sandwiching the notch 16 (or the temporary pillar 3), that is, at positions where the jacks 11 and 12 are provided. The through holes are for inserting wires 11a and 12a extending from the jacks 11 and 12, respectively. Column receiving member 13 on which the lower end of temporary column 3 is placed
Is a wire 11 protruding from the through hole of the load receiving beam 15.
a, 12a.
【００１９】さて、上記のごとく、ボイラ建屋２の内部
に、仮設柱支持装置４を用いて仮設柱３を立設させ、更
に仮設柱３をトップガーダ６に連結したならば、続い
て、トップガーダ６をボイラ建屋２から切り離す〔Ｉ
（Ｃ）工程〕。この際、トップガーダ６の切断は、図２
におけるＱ点を含む鉛直面およびＱ’点を含む鉛直面に
沿って実施する。これにより、仮設柱３が、ボイラ建屋
２の本設柱９に代わって、ボイラ１及びトップガーダ６
の重量を受けるようになる。As described above, when the temporary column 3 is erected inside the boiler building 2 using the temporary column support device 4, and the temporary column 3 is further connected to the top girder 6, then the top Girder 6 is separated from boiler building 2 [I
(C) Step]. At this time, the cutting of the top girder 6 is performed as shown in FIG.
The measurement is performed along the vertical plane including the Q point and the vertical plane including the Q ′ point. Thereby, the temporary pillar 3 replaces the main pillar 9 of the boiler building 2 with the boiler 1 and the top girder 6.
To receive the weight of.
【００２０】こうしてボイラ１及びトップガーダ６の重
量を仮設柱３に移し替えたならば、次に、仮設柱３を短
くすることにより、ボイラ１をトップガーダ６と共に１
段分降下させる（Ｄ工程）。このＤ工程は次のＪ〜Ｎ工
程からなる。以下、図４〜図１２を用いて、Ｊ〜Ｎ工程
を更に詳しく説明する。仮設柱３を短くする作業、すな
わち仮設柱３を構成する単位柱５を１本取り外す作業の
実施に際しては、まず、図４に示す状態からジャッキ１
１，１２を作動させて、ワイヤ１１ａ，１２ａを繰り出
す。これによって、図６に示すごとく、仮設柱３を単位
柱５の長さに相当する量だけ降下させる（Ｊ工程）。After the weights of the boiler 1 and the top girder 6 have been transferred to the temporary columns 3, the boiler 1 is moved together with the top girder 6 by shortening the temporary columns 3.
Lower by step (step D). This D step includes the following J to N steps. Hereinafter, the J to N steps will be described in more detail with reference to FIGS. When the work for shortening the temporary pillar 3, that is, the work for removing one unit pillar 5 constituting the temporary pillar 3, first, the jack 1 is moved from the state shown in FIG.
The wires 11a and 12a are paid out by operating the wires 1 and 12, respectively. Thus, as shown in FIG. 6, the temporary pillar 3 is lowered by an amount corresponding to the length of the unit pillar 5 (Step J).
【００２１】これが完了したならば、降下させた仮設柱
３を仮設柱支持装置４の架台１０に対して一時的に位置
固定する（Ｋ工程）。更に詳しく言えば、仮設柱３のツ
バ部５ａと架台１０の荷重受け梁部１５との間に、図７
や図８から判るように、略コ字形のカンヌキ部材１７を
配置し、仮設柱３からの荷重を荷重受け梁部１５に作用
させる。但し、実際には、初め、降下させた仮設柱３の
ツバ部５ａと、荷重受け梁部１５との隙間を、カンヌキ
部材１７の厚みよりも僅かに大きくしておき、カンヌキ
部材１７の配置後、ワイヤ１１ａ，１２ａを更に繰り出
し、カンヌキ部材１７に仮設柱３のツバ部５ａを密着さ
せることになる（この状態では、柱受け部材１３に荷重
は作用していない）。When this is completed, the lowered temporary column 3 is temporarily fixed to the gantry 10 of the temporary column support device 4 (step K). More specifically, between the brim portion 5a of the temporary pillar 3 and the load receiving beam portion 15 of the gantry 10, FIG.
As can be seen from FIG. 8 and FIG. 8, a substantially U-shaped cannook member 17 is arranged, and a load from the temporary pillar 3 is applied to the load receiving beam portion 15. However, in practice, the gap between the brim portion 5a of the temporary column 3 lowered and the load receiving beam portion 15 is made slightly larger than the thickness of the kanuki member 17 at first. Then, the wires 11a and 12a are further extended to bring the brim portion 5a of the temporary pillar 3 into close contact with the cannula member 17 (in this state, no load acts on the pillar receiving member 13).
【００２２】こうして、仮設柱３を仮設柱支持装置４の
架台１０に対して位置固定したならば、続いて、図９に
示すごとく、仮設柱３を構成する単位柱５のうちで最も
下方に位置するものを取り外す（Ｌ工程）。このＬ工程
によって、仮設柱３を単位柱５の長さ分だけ短くした後
には、ジャッキ１１，１２を作動させ、柱受け部材１３
を上昇させる。そして、図１０に示すごとく、仮設柱３
の下端部に柱受け部材１３を当接させる（Ｍ工程）。When the temporary column 3 is fixed in position with respect to the gantry 10 of the temporary column support device 4 in this manner, subsequently, as shown in FIG. Remove the positioned object (L step). After the temporary pillar 3 is shortened by the length of the unit pillar 5 by the L process, the jacks 11 and 12 are operated, and the pillar receiving member 13 is operated.
To rise. Then, as shown in FIG.
The column receiving member 13 is brought into contact with the lower end of the M (step M).
【００２３】柱受け部材１３が仮設柱３の下端部に当接
したならば、更にジャッキ１１，１２を作動させて、ワ
イヤ１１ａ，１２ａを引き戻し、仮設柱３を図１０に示
す位置から僅かに上昇させる。つまり、カンヌキ部材１
７と仮設柱３のツバ部５ａとの間に隙間を形成する。こ
の後、カンヌキ部材１７を引き抜き、図１１に示すごと
く、仮設柱３の架台１０に対する位置固定状態を解除す
る。そして、再び、仮設柱３の下端部が柱受け部材１３
に載置された状態とする（Ｎ工程）。このＮ工程が完了
すると、仮設柱支持装置４による仮設柱３の支持状態
は、図４に示した最初の状態に戻る。When the column receiving member 13 comes into contact with the lower end of the temporary column 3, the jacks 11 and 12 are further operated to pull back the wires 11a and 12a, and the temporary column 3 is slightly moved from the position shown in FIG. To raise. That is, the kanuki member 1
A gap is formed between 7 and the brim portion 5a of the temporary pillar 3. Thereafter, the cannus member 17 is pulled out, and as shown in FIG. 11, the fixed state of the temporary pillar 3 with respect to the gantry 10 is released. Then, again, the lower end of the temporary pillar 3 is
(N step). When this N step is completed, the state of supporting the temporary pillar 3 by the temporary pillar support device 4 returns to the initial state shown in FIG.
【００２４】上記Ｊ〜Ｎ工程を経て、図１２に示すごと
く、ボイラ１をトップガータ６と共に１段分降下させた
ならば、ボイラ１を下部から解体する〔Ｏ（Ｅ）工
程〕。また、これと並行して、ボイラ建屋２を上部から
解体する〔Ｐ（Ｆ）工程〕。ボイラ１及びボイラ建屋２
の解体が１段分完了した状態は、図１３に示すとおりで
ある。After the above steps J to N, as shown in FIG. 12, when the boiler 1 is lowered by one stage together with the top garter 6, the boiler 1 is disassembled from below (O (E) step). At the same time, the boiler building 2 is dismantled from above (P (F) step). Boiler 1 and boiler building 2
FIG. 13 shows a state in which the disassembly of one step has been completed for one stage.
【００２５】この後は、上記Ｊ〜Ｐ工程を繰り返し実施
すればよい。図１３に示す状況からＪ〜Ｐ工程を更に４
回繰り返した状態は、図１４に示すとおりである。図１
４に示すのは、ボイラ１及びトップガータ６を最終降下
させる直前の様子であり、したがって上記Ｊ〜Ｐ工程
は、図１４の状態から更に１回繰り返される。そして、
残った部分を適宜な方法で処理することにより、ボイラ
及びボイラ建屋の解体は完了する。Thereafter, the above steps J to P may be repeated. From the situation shown in FIG.
The state repeated twice is as shown in FIG. FIG.
FIG. 4 shows the state immediately before the boiler 1 and the top garter 6 are finally lowered. Therefore, the above steps J to P are repeated once more from the state shown in FIG. And
The dismantling of the boiler and the boiler building is completed by processing the remaining portion by an appropriate method.
【００２６】上述したように、本実施形態では、ボイラ
１の周囲に、それを挟んで互いに対向するよう仮設柱３
を立設すると共に、ボイラ１を吊るトップガーダ６をこ
の仮設柱３の上端側に連結し、トップガーダ６をボイラ
建屋２から切り離した後、仮設柱３を段階的に短くして
いくことで、ボイラ１をトップガーダ６と共に降下さ
せ、ボイラ１及びボイラ建屋２の解体を行うようにし
た。特に、仮設柱３を段階的に短くするため、仮設柱支
持装置４を用いている。つまり、本実施形態では、解体
されるボイラ１の支持をボイラ建屋２の本設柱９によっ
てではなく、仮設柱３によって行うようにした。言い換
えれば、解体中のボイラ１の支持状態が、ボイラ建屋２
（特にその本設柱９）には全く依存せずに得られるよう
にした。したがって、ボイラ建屋２をボイラ１の解体が
完了するまで残しておく必要はなく、ボイラ１の解体作
業と並行して、ボイラ建屋２の解体作業を実施すること
が可能である。ゆえに、作業効率に優れ、ボイラ１及び
ボイラ建屋２の解体に要する工期は大幅に短縮される。
その上、本実施形態では、解体中のボイラ１を支持する
仮設柱３についても、ボイラ１の降下に伴って、その降
下量に相当する分が撤去される。このため仮設柱３の設
置が解体作業の工期に影響を与えることはない。As described above, in the present embodiment, the temporary columns 3 are arranged around the boiler 1 so as to face each other with the boiler 1 interposed therebetween.
And the top girder 6 for suspending the boiler 1 is connected to the upper end side of the temporary pillar 3, and after the top girder 6 is separated from the boiler building 2, the temporary pillar 3 is gradually shortened. Then, the boiler 1 is lowered together with the top girder 6, and the boiler 1 and the boiler building 2 are dismantled. In particular, the temporary column support device 4 is used to shorten the temporary column 3 stepwise. That is, in the present embodiment, the boiler 1 to be dismantled is supported not by the main pillar 9 of the boiler building 2 but by the temporary pillar 3. In other words, the support state of the boiler 1 during dismantling is changed to the boiler building 2
(Especially, the main pillar 9) can be obtained without depending at all. Therefore, it is not necessary to keep the boiler building 2 until the dismantling of the boiler 1 is completed, and the dismantling work of the boiler building 2 can be performed in parallel with the dismantling work of the boiler 1. Therefore, the work efficiency is excellent, and the construction period required for dismantling the boiler 1 and the boiler building 2 is greatly reduced.
In addition, in the present embodiment, as for the temporary pillar 3 supporting the boiler 1 being dismantled, a portion corresponding to the descending amount is removed as the boiler 1 descends. For this reason, the installation of the temporary columns 3 does not affect the construction period of the dismantling work.
【００２７】[0027]
【発明の効果】本発明によれば、ボイラとボイラ建屋と
を同時に解体することが可能であり、作業の効率化が図
れ、従来技術に比べて工期を大幅に短縮できる。According to the present invention, the boiler and the boiler building can be dismantled at the same time, the work efficiency can be improved, and the construction period can be greatly reduced as compared with the prior art.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本解体作業の準備が完了した状態を示すボイラ
及びボイラ建屋の外観図FIG. 1 is an external view of a boiler and a boiler building showing a state in which preparations for this dismantling work are completed.
【図２】本解体作業の準備が完了した状態でのボイラ建
屋の断面図FIG. 2 is a cross-sectional view of a boiler building in a state where preparations for the dismantling work are completed.
【図３】仮設柱と本設梁（トップガーダ）との連結部分
の拡大図FIG. 3 is an enlarged view of a connecting portion between a temporary pillar and a permanent beam (top girder).
【図４】仮設柱支持装置の構造を示す正面図FIG. 4 is a front view showing the structure of a temporary column support device.
【図５】図４におけるＸ−Ｘ線での断面図FIG. 5 is a sectional view taken along line XX in FIG. 4;
【図６】仮設柱を単位柱の長さに相当する量だけ降下さ
せた状態での仮設柱支持装置の正面図FIG. 6 is a front view of the temporary column supporting device in a state where the temporary column is lowered by an amount corresponding to the length of the unit column.
【図７】降下させた仮設柱を架台に対して位置固定した
状態での仮設柱支持装置の正面図FIG. 7 is a front view of the temporary column supporting device in a state where the lowered temporary column is fixed in position with respect to the gantry;
【図８】降下させた仮設柱を架台に対して位置固定した
状態での仮設柱支持装置の平面図FIG. 8 is a plan view of the temporary column supporting device in a state where the lowered temporary column is fixed to the gantry.
【図９】仮設柱を構成する単位柱のうちで最も下方に位
置するものを取り外した状態での仮設柱支持装置の正面
図FIG. 9 is a front view of the temporary column support device in a state where a lowermost one of the unit columns constituting the temporary column is removed.
【図１０】柱受け部材を上昇させ、仮設柱の下端部に当
接させた状態での仮設柱支持装置の正面図FIG. 10 is a front view of the temporary column supporting device in a state where the column receiving member is raised and brought into contact with the lower end of the temporary column.
【図１１】仮設柱の架台に対する位置固定状態を解除し
た状態での仮設柱支持装置の正面図FIG. 11 is a front view of the temporary column support device in a state where the position of the temporary column with respect to the gantry is fixed.
【図１２】ボイラを１段分降下させた状態を示すボイラ
建屋の断面図FIG. 12 is a cross-sectional view of the boiler building showing a state where the boiler is lowered by one stage.
【図１３】ボイラ及びボイラ建屋の解体が１段分完了し
た状態を示すボイラ建屋の断面図FIG. 13 is a cross-sectional view of the boiler building showing a state in which the dismantling of the boiler and the boiler building has been completed for one stage.
【図１４】ボイラを最終降下させる直前の状態を示すボ
イラ建屋の断面図FIG. 14 is a sectional view of the boiler building showing a state immediately before the boiler is finally lowered.
１ ボイラ ２ ボイラ建屋 ３ 仮設柱 ４ 仮設柱支持装置 ５ 単位柱 ５ａ ツバ部 ６ トップガーダ（本設梁） ７ 鉛直材 ８ 水平材 ９ 本設柱 １０ 架台 １１，１２ ジャッキ １１ａ，１２ａ ワイヤ（吊り材） １３ 柱受け部材 １４ａ，１４ｂ 脚部 １５ 荷重受け梁部 １６ 切欠き １７ カンヌキ部材 DESCRIPTION OF SYMBOLS 1 Boiler 2 Boiler building 3 Temporary column 4 Temporary column support device 5 Unit column 5a Collar part 6 Top girder (main beam) 7 Vertical member 8 Horizontal member 9 Main column 10 Stand 11, 12 Jack 11a, 12a Wire (hanging member) 13) Column receiving member 14a, 14b Leg 15 Load receiving beam 16 Notch 17 Kannuki member
───────────────────────────────────────────────────── フロントページの続き (72)発明者 土屋 弘志 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 (72)発明者 小橋 栄作 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 (72)発明者 池田 宏俊 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 (72)発明者 草加 俊資 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Tsuchiya 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Eisai Kobashi 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Hirotoshi Ikeda 1-25-1 Nishi Shinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Toshishi Soka 1-25-1 Nishi Shinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd.
Claims (6)
であって、 脚部と、この脚部間に設けられ、前記仮設柱が挿通させ
られる荷重受け梁部とを有する架台と、 この架台の荷重受け梁部に設けられたジャッキと、 このジャッキから延びる吊り材に連結され、前記仮設柱
の下端部が載置させられる柱受け部材とを具備してなる
ことを特徴とする仮設柱支持装置。1. A device used for supporting a lower end side of a temporary column, comprising: a pedestal having a leg portion and a load receiving beam portion provided between the leg portion and through which the temporary column is inserted. A temporary column comprising: a jack provided on a load receiving beam portion of a gantry; and a column receiving member connected to a suspending member extending from the jack and on which a lower end portion of the temporary column is placed. Support device.
む二つの位置には、ジャッキから延びる吊り材を挿通さ
せるための貫通孔が形成されてなり、 かつ、前記ジャッキは、前記荷重受け梁部の貫通孔に対
応した位置にそれぞれ設けられてなり、 更に、柱受け部材は、前記荷重受け梁部の貫通孔から突
出する二つの吊り材の下端側に連結されてなることを特
徴とする請求項１に記載の仮設柱支持装置。2. A load receiving beam portion of a gantry is provided with through holes for inserting a suspension extending from a jack at two positions sandwiching the temporary pillar, and the jack is provided with the load receiving beam. And the column receiving member is connected to the lower ends of two suspension members projecting from the through holes of the load receiving beam portion. The temporary column support device according to claim 1.
いに対向するよう仮設柱を立設するＡ工程と、 前記ボイラを吊る本設梁を前記仮設柱の上端側に連結す
るＢ工程と、 前記本設梁をボイラ建屋から切り離すＣ工程と、 前記仮設柱を段階的に短くしていくことで、前記ボイラ
を前記本設梁と共に降下させるＤ工程と、 降下させた前記ボイラを下部から解体するＥ工程と、 前記ボイラ建屋を上部から解体するＦ工程とを具備する
ことを特徴とするボイラ及びボイラ建屋の解体方法。A step of erecting temporary columns around the boiler so as to face each other with the boiler interposed therebetween; and a step B of connecting a permanent beam for suspending the boiler to an upper end side of the temporary columns. A step C for separating the permanent beam from the boiler building; a step D for lowering the boiler together with the permanent beam by gradually shortening the temporary pillar; and disassembling the lowered boiler from below. A boiler and a method for dismantling a boiler building, comprising: an E step for performing a boiler building operation;
柱支持装置を用いたボイラ及びボイラ建屋の解体方法で
あって、 所定長さの単位柱を複数本連結してなる仮設柱を、ボイ
ラの周囲に、このボイラを挟んで互いに対向するよう前
記仮設柱支持装置を用いて立設するＧ工程と、 前記ボイラを吊る本設梁を前記仮設柱の上端側に連結す
るＨ工程と、 前記本設梁をボイラ建屋から切り離すＩ工程と、 ジャッキを作動させて吊り材を繰り出し、前記仮設柱を
前記単位柱の長さに相当する量だけ降下させるＪ工程
と、 降下させた前記仮設柱を架台に対して位置固定するＫ工
程と、 降下させた前記仮設柱を構成する単位柱のうちで最も下
方に位置するものを取り外すＬ工程と、 前記ジャッキを作動させて柱受け部材を上昇させ、前記
仮設柱の下端部に前記柱受け部材を当接させるＭ工程
と、 前記仮設柱の前記架台に対する位置固定状態を解除し、
前記仮設柱の下端部が前記柱受け部材に載置された状態
とするＮ工程と、 前記仮設柱の降下に伴い、前記本設梁と共に降下させら
れる前記ボイラを下部から解体するＯ工程と、 前記ボイラ建屋を上部から解体するＰ工程とを具備し、 前記Ｊ工程、Ｋ工程、Ｌ工程、Ｍ工程、Ｎ工程、Ｏ工
程、Ｐ工程を必要に応じて繰り返し実施することを特徴
とするボイラ及びボイラ建屋の解体方法。4. A method for dismantling a boiler and a boiler building using the temporary column support device according to claim 1 or 2, wherein a temporary column formed by connecting a plurality of unit columns having a predetermined length is used. A G step of erecting the periphery of the boiler using the temporary column supporting device so as to face each other with the boiler interposed therebetween; and an H step of connecting a main beam for suspending the boiler to an upper end side of the temporary column. An I step of separating the main beam from the boiler building; a J step of operating a jack to draw out a hanging material; and lowering the temporary column by an amount corresponding to the length of the unit column. A K step of fixing the position of the column with respect to the gantry; an L step of removing the lowest unit column of the unit columns constituting the lowered temporary column; and operating the jack to raise the column receiving member. And the lower end of the temporary pillar Wherein the M step of abutting the pole receiving member, to release the position fixing condition with respect to the frame of the temporary columns to,
An N step in which a lower end portion of the temporary column is placed on the column receiving member; and an O step of disassembling the boiler lowered together with the main beam from below, with the temporary column lowered, And a P step of dismantling the boiler building from above, wherein the J step, the K step, the L step, the M step, the N step, the O step, and the P step are repeatedly performed as necessary. And how to dismantle the boiler building.
使用し、前記単位柱のツバ部と架台の荷重受け梁部との
間にカンヌキ部材を配することにより、仮設柱を前記架
台に対して位置固定することを特徴とする請求項４に記
載のボイラ及びボイラ建屋の解体方法。5. A temporary column is provided on the base by using a unit column having a flange formed thereon and disposing a cannula member between the flange of the unit column and the load receiving beam of the base. The method for dismantling a boiler and a boiler building according to claim 4, wherein the position of the boiler and the boiler building are fixed.
し、前記仮設柱の上端面を前記本設梁に当接させ、前記
仮設柱と前記本設梁とを接合すると共に、前記仮設柱
と、前記本設梁の端部に存在させた鉛直材とを水平材に
よって緊結することを特徴とする請求項３〜請求項５の
いずれかに記載のボイラ及びボイラ建屋の解体方法。6. When connecting a temporary beam to an upper end side of a temporary pillar, an upper end surface of the temporary pillar is brought into contact with the permanent beam, and the temporary pillar and the permanent beam are joined. The method for dismantling a boiler and a boiler building according to any one of claims 3 to 5, wherein the temporary pillar and a vertical member existing at an end of the main beam are fastened by a horizontal member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32827897A JPH11159155A (en) | 1997-11-28 | 1997-11-28 | Support device for temporary column, and demolition of boiler and boiler building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32827897A JPH11159155A (en) | 1997-11-28 | 1997-11-28 | Support device for temporary column, and demolition of boiler and boiler building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11159155A true JPH11159155A (en) | 1999-06-15 |
Family
ID=18208448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32827897A Pending JPH11159155A (en) | 1997-11-28 | 1997-11-28 | Support device for temporary column, and demolition of boiler and boiler building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11159155A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008248486A (en) * | 2007-03-29 | 2008-10-16 | Besutera Kk | Method for disassembling boiler |
| JP2012046968A (en) * | 2010-08-27 | 2012-03-08 | Kajima Corp | Demolition method and jack structure |
| CN102597620A (en) * | 2009-04-09 | 2012-07-18 | 福斯特韦勒能源股份公司 | Thermal power plant |
| JP2016108875A (en) * | 2014-12-09 | 2016-06-20 | 株式会社大林組 | Demolition system and demolition method |
| CN113389406A (en) * | 2021-06-17 | 2021-09-14 | 北京东方悦工程技术有限公司 | Joist column pulling construction method |
-
1997
- 1997-11-28 JP JP32827897A patent/JPH11159155A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008248486A (en) * | 2007-03-29 | 2008-10-16 | Besutera Kk | Method for disassembling boiler |
| CN102597620A (en) * | 2009-04-09 | 2012-07-18 | 福斯特韦勒能源股份公司 | Thermal power plant |
| CN102597620B (en) * | 2009-04-09 | 2014-10-01 | 福斯特韦勒能源股份公司 | Thermal power plant |
| US9151496B2 (en) | 2009-04-09 | 2015-10-06 | Amec Foster Wheeler Energia Oy | Thermal power plant |
| JP2012046968A (en) * | 2010-08-27 | 2012-03-08 | Kajima Corp | Demolition method and jack structure |
| JP2016108875A (en) * | 2014-12-09 | 2016-06-20 | 株式会社大林組 | Demolition system and demolition method |
| CN113389406A (en) * | 2021-06-17 | 2021-09-14 | 北京东方悦工程技术有限公司 | Joist column pulling construction method |
| CN113389406B (en) * | 2021-06-17 | 2022-08-09 | 北京东方悦工程技术有限公司 | Joist column pulling construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2001254668A (en) | Device and method for assembling wind power generation tower | |
| CN108166660B (en) | Installation method of curved surface single-layer latticed shell structure | |
| JPH11159155A (en) | Support device for temporary column, and demolition of boiler and boiler building | |
| JP5974110B2 (en) | Scattering device for collective chimney dismantling and disassembling method of collective chimney using the device | |
| JPH08270232A (en) | Demolishing method for steel structural building | |
| JP4107179B2 (en) | Construction method of steel structure | |
| JP7177431B2 (en) | Lift-up device and tower-like structure construction method | |
| JPH06323503A (en) | Assembling method for large size suspension type boiler | |
| JP2004156388A (en) | Construction method of arch structure, dome structure and its construction method | |
| JP2014047587A (en) | Simultaneous boiler demolition method of boiler and boiler building | |
| JPH11201404A (en) | Boiler and method of dismantling boiler building | |
| JPH08338155A (en) | Method making existing building into base isolation construction | |
| JPH06323504A (en) | Large size suspension type boiler overhauling method | |
| JPH10196122A (en) | Arch supporting assembling system and assembling method | |
| JP2021169745A (en) | Scattering prevention device and scattering prevention method | |
| JP3718296B2 (en) | Tower-like structure dismantling method and equipment | |
| JPH11270154A (en) | Dismantling method of boiler and boiler shed | |
| JP3546225B2 (en) | How to build building structures | |
| JP3894341B2 (en) | Disassembly method of boiler and boiler building | |
| JP2768237B2 (en) | Assembly translation method and beam joining method of large hanging boiler, and beam joining structure | |
| JP2005155933A (en) | Disassembly method for boiler facility | |
| JP6211303B2 (en) | Seismic isolation method for existing buildings and temporary structure under construction | |
| JP2002364805A (en) | Method for dismantling boiler | |
| JP2984667B1 (en) | Tower-like structure dismantling device | |
| JP2592980B2 (en) | Construction method of steel frame material for high-rise structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040830 |
|
| A977 | Report on retrieval |
Effective date: 20060629 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060920 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20070131 |