JP3250632B2 - How to assemble large steel structures - Google Patents
How to assemble large steel structuresInfo
- Publication number
- JP3250632B2 JP3250632B2 JP11198193A JP11198193A JP3250632B2 JP 3250632 B2 JP3250632 B2 JP 3250632B2 JP 11198193 A JP11198193 A JP 11198193A JP 11198193 A JP11198193 A JP 11198193A JP 3250632 B2 JP3250632 B2 JP 3250632B2
- Authority
- JP
- Japan
- Prior art keywords
- large steel
- steel structure
- cover
- assembling
- plate
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Description
【０００１】[0001]
【産業上の利用分野】本発明は大型鉄鋼構造物を大きな
ブロックに組み立て据付位置に搭載する場合の大型鉄鋼
構造物の組立方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling a large steel structure in a case where a large steel structure is assembled into a large block and mounted at an installation position.
【０００２】[0002]
【従来の技術】大型鉄鋼構造物を組み立てる例として原
子力発電所に用いられる原子炉格納容器を例にして説明
する。原子炉は原子炉圧力容器（ＲＰＶ）内に格納さ
れ、この原子炉圧力容器およびこれに接続する配管等を
原子炉格納容器が格納している。原子炉格納容器は鋼板
のみで構成したものと、内面を鋼板のライニングプレー
トとし鉄筋コンクリートで構成したものとが用いられ
る。2. Description of the Related Art As an example of assembling a large steel structure, a reactor containment vessel used in a nuclear power plant will be described as an example. The reactor is housed in a reactor pressure vessel (RPV), and the reactor containment vessel houses the reactor pressure vessel and piping connected thereto. The reactor containment vessel is composed of a steel plate only, or a reactor vessel having a lining plate made of steel plate on the inner surface and made of reinforced concrete.
【０００３】図２は内面に鋼板ライニングプレートを用
いた鉄筋コンクリート格納容器（ＲＣＣＶ）とその内部
の主要構造の一例を示す図である。ＲＣＣＶは全体とし
て円筒で構成され、高さ方向をダイヤフラムフロア４で
上部、下部に仕切り、かつ下部の中心に円筒状のペデス
タル12を設け、上部を上部ドライウェル１、下部をサプ
レッションチエンバ２、ペデスタル12の内部を下部ドラ
イウェル３としている。上部ドライウェル１と下部ドラ
イウェル３とは連通している。FIG. 2 is a view showing an example of a reinforced concrete containment container (RCCV) using a steel plate lining plate on the inner surface and a main structure inside the container. The RCCV is composed of a cylinder as a whole. The height direction is divided into upper and lower parts by a diaphragm floor 4, and a cylindrical pedestal 12 is provided at the center of the lower part. The upper part is an upper dry well 1, the lower part is a suppression chamber 2, The inside of the pedestal 12 is a lower dry well 3. The upper dry well 1 and the lower dry well 3 are in communication.
【０００４】上部ドライウェル１の頂部は内面に鋼板ラ
イニングプレートを用いたトップスラブ５と中心に設け
られた鋼板製の開閉可能なトップヘッド10から構成され
る。サプレッションチエンバ２の底面は内面に鋼板ライ
ニングプレートを設けた鉄筋コンクリート構造であり、
ペデスタル12は鋼板で構成し、内部にコンクリートを充
填する。なお、ペデスタル12の内部には、上部ドライウ
ェル１、下部ドライウェル３内に発生した蒸気をサプレ
ッションチエンバ２内に導くベント管８が埋設されてい
る。サプレッションチエンバ２内には外部と、下部ドラ
イウェル３との交通用にアクセストンネル７が設けられ
ている。The top of the upper dry well 1 is composed of a top slab 5 using a steel plate lining plate on the inner surface and a steel plate openable and closable top head 10 provided at the center. The bottom of the suppression chamber 2 is a reinforced concrete structure with a steel plate lining plate on the inside,
The pedestal 12 is made of a steel plate, and is filled with concrete. In addition, a vent pipe 8 for guiding the vapor generated in the upper dry well 1 and the lower dry well 3 into the suppression chamber 2 is embedded in the pedestal 12. An access tunnel 7 is provided in the suppression chamber 2 for traffic between the outside and the lower drywell 3.
【０００５】原子炉圧力容器11はペデスタル12に据え付
けられ、ダイヤフラムフロア４上では周囲に円筒状の原
子炉遮蔽壁（ＲＳＷ）６が設けられている。原子炉遮蔽
壁６の項部にはＲＰＶスタビライザ14が設けられ、原子
炉圧力容器11の上部に加わる水平力を支持する。原子炉
遮蔽壁６の上部には原子炉遮蔽壁６より少し薄い上部原
子炉遮蔽壁13が設けられている。原子炉遮蔽壁６の周囲
には鋼製の柱、梁で階層状に構成されたパイプホイップ
ストラクチャ９が設けられ、原子炉圧力容器11に接続す
る配管や機器を支持する。[0005] The reactor pressure vessel 11 is mounted on a pedestal 12, and a cylindrical reactor shielding wall (RSW) 6 is provided around the diaphragm floor 4. An RPV stabilizer 14 is provided at a section of the reactor shield wall 6 to support a horizontal force applied to an upper portion of the reactor pressure vessel 11. An upper reactor shield wall 13 slightly thinner than the reactor shield wall 6 is provided above the reactor shield wall 6. A pipe whip structure 9 composed of steel columns and beams in a hierarchical structure is provided around the reactor shield wall 6 and supports piping and equipment connected to the reactor pressure vessel 11.
【０００６】このような鉄筋コンクリート格納容器の建
設は、まず底部の鉄筋コンクリートを打設し、その上に
サプレッションチエンバ２の底部ライニングプレート20
を張り、これと並行して周囲のライニングプレート21を
取り付けてゆく。このライニングプレート21の取り付け
に並行してこの周囲に鉄筋を配置し、コンクリート４１
を打設してゆく。サプレッションチェンバ２のライニン
グプレート21の取り付けが終わると引き続いて上部ドラ
イウェル１のライニングプレート22の取り付けが行わ
れ、これに続いて鉄筋の取り付けとコンクリート打設を
行い、鉄筋コンクリート格納容器を建設してゆく。なお
これと並行して内部のペデスタル12、ダイヤフラムフロ
ア４、原子炉遮蔽壁６、上部原子炉遮蔽壁13、パイプホ
イップストラクチャ９の取り付けも行われる。鉄筋コン
クリート格納容器内に据え付けられる部材や機器の大部
分が搭載された後、トップスラブ５のライニングプレー
トと鉄筋コンクリート工事が行われる。In the construction of such a reinforced concrete containment container, first, reinforced concrete at the bottom is cast, and the bottom lining plate 20 of the suppression chamber 2 is placed thereon.
And attach the surrounding lining plate 21 in parallel with this. Reinforcing bars are arranged around the lining plate 21 in parallel with the
I will put in. When the installation of the lining plate 21 of the suppression chamber 2 is completed, the lining plate 22 of the upper drywell 1 is subsequently installed, followed by the installation of the reinforcing steel and the concrete casting, thereby constructing the reinforced concrete containment vessel. . At the same time, the internal pedestal 12, the diaphragm floor 4, the reactor shield wall 6, the upper reactor shield wall 13, and the pipe whip structure 9 are also mounted. After most of the members and equipment to be installed in the reinforced concrete containment vessel are mounted, reinforced concrete work is performed on the lining plate of the top slab 5.
【０００７】鉄筋コンクリート格納容器の建設工事期間
は原子力発電所建設工事期間を直接左右するものである
ので、可能な限り短期間に建設する必要がある。このた
め鉄筋コンクリート格納容器据え付け位置の近傍に組み
立て定盤を設け、この組み立て定盤でサプレッションチ
エンバ２、上部ドライウェル１の周囲壁のライニングプ
レート21, 22を円筒状に組み立て、これをクレーンで据
え付け位置に搭載し、据え付けてゆく方法が採用され
る。この円筒状に組み立てる作業は時間がかかるので複
数個の定盤を設け、並行して組立が行われる。円筒状に
組立られたライニングプレートはクレーンで吊り上げ、
据え付け位置に搭載されるが、円筒形を保つための剛性
が小さいのでほぼ円形の吊具（天秤と称する）を用いて
吊り上げる必要がある。[0007] The construction period of the reinforced concrete containment vessel directly affects the construction period of the nuclear power plant, so it is necessary to construct the container as short as possible. For this purpose, an assembling table is provided near the installation position of the reinforced concrete containment vessel. The assembling table is used to assemble the suppression chamber 2 and the lining plates 21 and 22 on the peripheral wall of the upper drywell 1 into a cylindrical shape, and install this with a crane. A method of mounting at a position and installing it is adopted. Since the work of assembling into a cylindrical shape takes time, a plurality of surface plates are provided, and the assembly is performed in parallel. The lining plate assembled in a cylindrical shape is lifted by a crane,
Although it is mounted at the installation position, it has to be lifted by using a substantially circular hanging tool (called a balance) because the rigidity for maintaining the cylindrical shape is small.
【０００８】[0008]
【発明が解決しようとする課題】このように円筒状に組
み立てられたライニングプレートの直径は約30ｍ以上に
もなる。このため天秤の直径もこれとほぼ同じ寸法にな
る。この天秤の使用頻度は円筒状に組み立てられたライ
ニングプレートを搭載するときだけ使用するため、非常
に小さい。しかし天秤使用時にはクレーンで天秤を吊り
上げる必要からクレーンの吊上げ範囲（リーチ）内に置
いておく必要がある。ところでクレーンのリーチ内には
上述した複数の定盤があり、他にもクレーンで吊り上げ
るものを仮置きするエリアが必要になる。このため、使
用頻度の小さい天秤を置くエリアをクレーンリーチ内に
確保することができない場合が多い。このような場合、
天秤をクレーンリーチ外の位置に仮置きし、使用時クレ
ーンリーチ内に揚重機と運搬車輛等を使用し、運搬する
必要が発生する。また定盤上での作業は屋外工事となる
ので作業環境が悪い。The diameter of the lining plate assembled in a cylindrical shape as described above is about 30 m or more. For this reason, the diameter of the balance is almost the same as this. The frequency of use of this balance is very small because it is used only when mounting the lining plate assembled in a cylindrical shape. However, when the balance is used, it is necessary to lift the balance with a crane, so that it is necessary to place the balance within the lifting range (reach) of the crane. By the way, there are a plurality of bases described above in the reach of the crane, and in addition, an area for temporarily placing objects to be suspended by the crane is required. For this reason, in many cases, it is not possible to secure an area for placing a balance that is used less frequently in the crane reach. In such a case,
It is necessary to temporarily place the balance at a position outside the crane reach, and to use a lifting machine and a transport vehicle inside the crane reach to carry the balance. In addition, work on the surface plate is an outdoor work, so the working environment is poor.
【０００９】本発明は上述の問題点に鑑みてなされたも
ので、覆いを大型鉄鋼構造物組み立て定盤の上部に設置
することにより組み立て定盤の作業環境の改善を図り、
合わせてこの覆いに天秤の機能を持たせることにより天
秤の置き場所を確保した大型鉄鋼構造物組立方法を提供
することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made to improve the working environment of the assembling platen by installing the cover above the large steel structure assembling platen.
In addition, an object of the present invention is to provide a method for assembling a large-scale steel structure in which a place for placing a balance is secured by giving the cover a function of a balance.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するた
め、本発明は、大型鉄鋼構造物を所定形状に組み立てる
ほぼ同じ大きさの定盤を複数個設け、この定盤の周囲に
組み立てる大型鉄鋼構造物の高さに応じて高くできるよ
うにした支柱を配置し、この支柱上に、この定盤で組み
立て中の大型鉄鋼構造物を覆うことができるとともに吊
り上げ治具ともなる着脱可能な覆いを設け、この覆いを
いずれの前記定盤の支柱上にも置けるようにしたもので
ある。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a plurality of platens of substantially the same size for assembling a large steel structure into a predetermined shape, and a large steel plate assembled around the platen. A support that can be raised according to the height of the structure is arranged, and on this support, a removable cover that can cover the large steel structure being assembled with this surface plate and also serves as a lifting jig The cover is provided so that it can be placed on any of the supports of the platen.
【００１１】[0011]
【作用】各定盤の周囲には組立てる大型鉄鋼構造物の高
さが高くなるに応じて高くできるような支柱が配置され
ている。この支柱の上に吊り上げ治具の機能を有する覆
いを設定することができるので、これが屋根となり、こ
の下で大型鉄鋼構造物の組立作業を行う際の作業環境が
改善される。大型鉄鋼構造物の部材等を取り込む際は覆
いを他の定盤の支柱上に置き、取り込む部材の高さに応
じて支柱の高さを高くした後、再び覆いを取付ける。さ
らにこの覆いは吊り上げ治具となっているので、クレー
ンリーチ内に別途吊り上げ治具用のエリアを設ける必要
はない。また支柱には大型鉄鋼構造物との間に作業用の
足場も設けることができる。A column is provided around each surface plate so that it can be raised as the height of the large steel structure to be assembled increases. Since a cover having the function of a lifting jig can be set on the support, this serves as a roof, and a working environment for assembling a large steel structure under the roof is improved. When taking in a member or the like of a large steel structure, the cover is placed on a column of another surface plate, the height of the column is increased according to the height of the member to be taken in, and then the cover is attached again. Further, since this cover is a lifting jig, there is no need to provide a separate lifting jig area in the crane reach. In addition, a work scaffold can be provided between the support and the large steel structure.
【００１２】[0012]
【実施例】以下、本発明の実施例を図面を参照して説明
する。本実施例は大型鉄鋼構造物の例として鉄筋コンク
リート格納容器のライニングプレートを用いて説明する
が、これに限定されるものでなく、他の大型鉄鋼構造物
にも適用できる。図１は本実施例の構成を示し、（ａ）
は側面図、（ｂ）は平面図を示す。定盤30はコンクリー
トで構成し、ライニングプレートの組立時の荷重に対し
て充分耐えられる強度、剛性を有する。本図は定盤30を
２個設けた場合を示すが、必要に応じ、３個、４個と設
ける。定盤30上には組み立てる円筒の形状をケ書してお
き、この形状に合わせて工場から搬送されたブロックを
円筒に組み立てる。この円筒ケ書き位置の周囲には固定
支柱31を定盤30に埋め込み固定しておく。固定支柱31の
配置は円筒のまわりに４本以上とし、２つの隣接する定
盤30の間にある固定支柱31は共用する。Embodiments of the present invention will be described below with reference to the drawings. Although the present embodiment is described using a lining plate of a reinforced concrete containment vessel as an example of a large steel structure, the present invention is not limited to this and can be applied to other large steel structures. FIG. 1 shows the configuration of the present embodiment, in which (a)
Shows a side view, and (b) shows a plan view. The surface plate 30 is made of concrete and has strength and rigidity enough to withstand the load at the time of assembling the lining plate. This figure shows a case where two base plates 30 are provided, but three or four base plates are provided as necessary. The shape of the cylinder to be assembled is written on the surface plate 30, and the block transported from the factory is assembled into a cylinder according to this shape. A fixed support 31 is embedded and fixed in the surface plate 30 around the cylindrical writing position. The number of the fixed columns 31 is four or more around the cylinder, and the fixed columns 31 between two adjacent stools 30 are shared.
【００１３】固定支柱31の上部にはスリーブ式差し込み
継手32によって組み立て支柱33を設け、組み立てるライ
ニングプレートの高さに応じて継きたしてゆくことがで
きる。また固定支柱31、または組み立て支柱33の頂部に
は受け支柱34を設け、天秤を兼ねた覆い36を支持できる
ようにする。覆い36は例えば円錐台形とし、組み立て完
了した円筒状ライニングプレート21、22を吊り上げるの
に十分な強度を有すると共にキャンバス等により覆いを
して屋根としても機能するように構成されている。な
お、円筒状ライニングプレートを吊り上げる場合、受け
支柱34は回転し、吊り上げに支障をきたさぬように構成
されている。組み立て中の円筒状ライニングプレートと
固定支柱31, 組み立て支柱33、受け支柱34との間には組
み立て作業用の仮設足場35が設けられている。また覆い
36は屋根を必要とする定盤に所望の時に移動することが
できるので環境改善を図り、作業能率を向上することが
できる。An assembling column 33 is provided on the upper portion of the fixed column 31 by a sleeve-type plug-in joint 32, and can be connected according to the height of the lining plate to be assembled. A receiving support 34 is provided at the top of the fixed support 31 or the assembly support 33 so that the cover 36 also serving as a balance can be supported. The cover 36 has, for example, a truncated conical shape, has sufficient strength to lift the assembled cylindrical lining plates 21 and 22, and is configured to cover with a canvas or the like to function as a roof. When the cylindrical lining plate is lifted, the receiving column 34 is rotated so as not to hinder the lifting. A temporary scaffold 35 for assembling work is provided between the cylindrical lining plate being assembled and the fixed strut 31, the assembling strut 33, and the receiving strut 34. Also cover
36 can be moved to a surface plate requiring a roof at a desired time, so that the environment can be improved and work efficiency can be improved.
【００１４】[0014]
【発明の効果】以上の説明より明らかなように、大型鉄
鋼構造物組み立て用の定盤を複数個設け、各定盤には周
囲に組立高さに応じて高くしてゆく支柱を設けて、この
支柱上に組立中の大型鉄鋼構造物を覆うことができ吊り
上げ治具の機能を有する着脱可能な覆いを設置すること
ができるので、吊り上げ治具設置用のエリアを必要とせ
ず、さらにこの覆いにより定盤作業エリアの環境改善、
作業能率向上、品質向上が期待できる。As is clear from the above description, a plurality of surface plates for assembling a large steel structure are provided, and each surface plate is provided with a supporting column which is raised in accordance with the assembly height. Since a large-sized steel structure being assembled can be covered on this support and a detachable cover having a function of a lifting jig can be installed, an area for installing a lifting jig is not required. To improve the environment of the work area
Improvement of work efficiency and quality can be expected.
【図１】本発明の実施例を説明する図で、（ａ）は側面
図を示し、（ｂ）は平面図を示す。1A and 1B are diagrams illustrating an embodiment of the present invention, wherein FIG. 1A is a side view and FIG. 1B is a plan view.
【図２】鉄筋コンクリート原子炉格納容器およびその内
部の構成を示す図である。FIG. 2 is a view showing a reinforced concrete containment vessel and an internal configuration thereof.
21,22 ライニングプレート 30 定盤 31 固定支柱 32 スリーブ式差し込み継手 33 組み立て支柱 34 受け支柱 36 覆い 21,22 Lining plate 30 Surface plate 31 Fixed column 32 Sleeve-type plug-in joint 33 Assembly column 34 Receiving column 36 Cover
Claims (1)
ぼ同じ大きさの定盤を複数個設け、この定盤の周囲に組
み立てる大型鉄鋼構造物の高さに応じて高くできるよう
にした支柱を配置し、この支柱上に、この定盤で組み立
て中の大型鉄鋼構造物を覆うことができるとともに吊り
上げ治具ともなる着脱可能な覆いを設け、この覆いをい
ずれの前記定盤の支柱上にも置けるようにしたことを特
徴とする大型鉄鋼構造物の組立方法。1. A strut which is provided with a plurality of base plates having substantially the same size for assembling a large steel structure into a predetermined shape, and which can be raised in accordance with the height of the large steel structure assembled around the base plate. Is disposed on the support, and a detachable cover that can cover the large steel structure being assembled with the surface plate and also serves as a lifting jig is provided, and the cover is provided on any of the supports of the surface plate. A method for assembling a large-scale steel structure, characterized in that it can also be placed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11198193A JP3250632B2 (en) | 1993-05-14 | 1993-05-14 | How to assemble large steel structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11198193A JP3250632B2 (en) | 1993-05-14 | 1993-05-14 | How to assemble large steel structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06324180A JPH06324180A (en) | 1994-11-25 |
| JP3250632B2 true JP3250632B2 (en) | 2002-01-28 |
Family
ID=14574967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11198193A Expired - Fee Related JP3250632B2 (en) | 1993-05-14 | 1993-05-14 | How to assemble large steel structures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3250632B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7776712B2 (en) | 1998-12-03 | 2010-08-17 | Semiconductor Energy Laboratory Co., Ltd. | Method of forming a semiconductor device |
-
1993
- 1993-05-14 JP JP11198193A patent/JP3250632B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7776712B2 (en) | 1998-12-03 | 2010-08-17 | Semiconductor Energy Laboratory Co., Ltd. | Method of forming a semiconductor device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06324180A (en) | 1994-11-25 |
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