JPH022988A - Method for construction of nuclear reactor containment vessel shield wall ceiling floor - Google Patents
Method for construction of nuclear reactor containment vessel shield wall ceiling floorInfo
- Publication number
- JPH022988A JPH022988A JP63148515A JP14851588A JPH022988A JP H022988 A JPH022988 A JP H022988A JP 63148515 A JP63148515 A JP 63148515A JP 14851588 A JP14851588 A JP 14851588A JP H022988 A JPH022988 A JP H022988A
- Authority
- JP
- Japan
- Prior art keywords
- containment vessel
- reactor containment
- shield wall
- ceiling floor
- concrete
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000009415 formwork Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は自立型原子炉格納容器を有する原子炉建屋の片
面支持構造体である原子炉格納容器シールドウオール天
井床の施工方法に係わり、特に仮設支持材の削減及び工
事作業Ｉの低減に好適な原子炉格納容器シールドウオー
ル天井床の施工方法に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for constructing a shield wall ceiling floor of a reactor containment vessel, which is a single-sided support structure of a reactor building having a self-supporting reactor containment vessel. The present invention relates to a method of constructing a reactor containment vessel shield wall ceiling floor suitable for reducing temporary support materials and construction work I.
従来、コンクリートスラブの施工方法は、特開昭５７
９６１７３号及び６１−７８９５８号に記載のように、
型枠をビーム及び支柱により支持し、コンクリ−１・の
打設を行うのが一般的であった。Conventionally, the method of constructing concrete slabs was
As described in Nos. 96173 and 61-78958,
It was common practice to support the formwork with beams and supports and pour concrete.
自立を原子炉格納容器を有する原子炉建屋の片１１Ｆ＋
支持構造体である原子炉格納容器シールドウオール天井
床の施工方法においても同様であり、第６図に示すよう
に、原子炉格納容器１の設定と、原子炉格納容器１に対
するシールドウオール（■壁２の施工が完了した後、シ
ールドウオール側壁２より仮設梁３及び仮設支持材１１
を設定し、仮設梁３の上にシールドウオール天井床５の
型枠６を設定する。しかる後に、シールドウオール天井
床５の鉄筋を設定し、シールドウオール天井床５のコン
クリートを打設する際の荷重を、仮設梁３、仮設支持材
−′１及びシールドウオール側壁２に支持可能な状態と
した後、コンクリート打設を行う、その鹸、：１ンクリ
ートか囚化し強度が発生した時点で、仮設梁３及び仮設
支持材４並びに型枠６の撤去を行い、シールドウオール
大月床５の施工を完了する。Fragment 11F+ of the reactor building with a self-supporting reactor containment vessel
The same applies to the construction method of the reactor containment vessel shield wall ceiling floor, which is a supporting structure. After the construction of 2 is completed, the temporary beam 3 and the temporary support material 11 are removed from the shield wall side wall 2.
is set, and the formwork 6 of the shield wall ceiling floor 5 is set on the temporary beam 3. After that, reinforcing bars for the shield wall ceiling floor 5 are set, and the temporary beam 3, the temporary support material -'1, and the shield wall side wall 2 are in a state where the load when pouring concrete for the shield wall ceiling floor 5 can be supported. After that, concrete is poured. When the concrete becomes solid and strong, the temporary beams 3, temporary supports 4, and formwork 6 are removed, and the shield wall Otsuki floor 5 is removed. Complete construction.
原子炉の運転時、原子炉格納容器１は熱拐張するので、
原子炉格納容器シールドウオール天井床５は原子炉格納
容器１から分離しておく必要がある。従って、シールド
ウオール天井床５と原子炉格納容器１を接続することは
できず、シールドウオール天井床５の施工に際しては、
上述したように、コンクリ−１〜打設時の荷重を原子炉
格納容器１に支持することはせす、仮設梁３及び仮設支
持材・１を設置し、コンクリート打設時の荷重を支持す
るようにしていた。このため従来の施工方法では、多く
の仮設資材を必要とすると共に、コンクリ−１−固化後
、仮設梁及び仮設支持材を撤去する必要があり、この撤
去に多くの手間を必要としていた。During operation of the nuclear reactor, the reactor containment vessel 1 undergoes thermal expansion, so
The reactor containment vessel shield wall ceiling floor 5 must be separated from the reactor containment vessel 1. Therefore, it is not possible to connect the shield wall ceiling floor 5 and the reactor containment vessel 1, and when constructing the shield wall ceiling floor 5,
As mentioned above, in order to support the load during concrete pouring on the reactor containment vessel 1, temporary beams 3 and temporary supports 1 are installed to support the load during concrete pouring. That's what I was doing. For this reason, conventional construction methods require a large amount of temporary materials, and after the concrete has hardened, it is necessary to remove the temporary beams and temporary supports, which requires a lot of effort.
本発明の目的は、シールドウオール天井床のコンクリー
ト打設時に荷重を支持する仮設資材を不要とし、１本作
業量を低減できる原子炉格納容器シールドウオール天井
床の施工方法を提Ｏ１：することである。The purpose of the present invention is to provide a method for constructing a reactor containment vessel shield wall ceiling floor that eliminates the need for temporary materials to support the load during concrete pouring of the shield wall ceiling floor and reduces the amount of work per piece. be.
上記目的は、構造材の一端をシールドウオール側壁の上
端に支持させ、（ｌ！！端を原子炉格納容器に仮接続し
、この１Ｍ造材に型枠を設置してコンクリートを打設し
、コンクリートか固化後、前記構造材の曲端と原子炉格
納容器の仮接続を解くことを特徴とする原子炉格納容器
シールドウオール天井床の施工方法によって達成される
。ここで好ましくは、前記構造材の曲端と原子炉格納容
器の仮接続を耐震用のシャラグを利用して行う。The above purpose was to support one end of the structural material on the upper end of the shield wall side wall, temporarily connect the end to the reactor containment vessel, install formwork on this 1M material, and pour concrete. This is achieved by a method for constructing a reactor containment vessel shield wall ceiling floor, which is characterized in that, after the concrete has solidified, the temporary connection between the curved end of the structural member and the reactor containment vessel is released.Here, it is preferable that the structural member The curved end of the reactor will be temporarily connected to the reactor containment vessel using earthquake-resistant shag.
このように構成された本発明においては、シールドウオ
ール側壁に支持され原子炉格納容器に仮接続された構造
材は、シールドウオール側壁及び原子炉格納容器と開な
構造体を構成し、コンクリ−ｊ〜打設時の荷重を当該ｆ
ＩＩｌ造材及びその両端の支持部及び仮接続部を介して
シールドウオール側壁及び原子炉格納容器に支持する。In the present invention configured in this way, the structural member supported by the shield wall side wall and temporarily connected to the reactor containment vessel forms an open structure with the shield wall side wall and the reactor containment vessel, and ~The load at the time of pouring is the corresponding f
It is supported on the shield wall side wall and the reactor containment vessel via the IIl material and the supporting parts and temporary connection parts at both ends.
ＵＣって、仮設梁、仮設支持材等の仮設資材が不要とな
り、工事作業量か低減できる。UC eliminates the need for temporary materials such as temporary beams and temporary supports, reducing the amount of construction work.
原子炉格納容器との仮接続をシャラグを利ＨＪ して行
う場合は、当該仮接続を既設の部材を用いて行える上、
シャラグ自体の設置も簡便に行える。When making a temporary connection to the reactor containment vessel using a shag, the temporary connection can be made using existing members, and
The installation of the shag itself is also easy.
以下１本発明の一実施例を第１図〜第５図を参ｉｊ％ｉ
Ｉ、て説明する。An embodiment of the present invention is shown below with reference to FIGS. 1 to 5.
I will explain.
第１図は原子炉建屋の完成後の全体構成を承り図であり
、符号１０か原子炉建屋を示す。原子炉建屋ｌＯは原子
炉圧力容器１１を格納する自立型の原子炉格納容器１２
を有し、その外側に、原子炉遮蔽のための原子炉格納容
器シールドウオール１３が配置されている。原子炉格納
容器シールドウオール１３は、コンクリートマット１４
から立設されたシールドウオールｒｆ！Ａ壁１５と、シ
ールドウオールの天井を構成するシールドウオール天井
床１６とからなっている。シールドウオール天井床１６
は、原子炉運転時の熱影響により原子炉格納容器１２か
変形することから、原子炉格納容器１２から分離されて
おり、従ってシールドウオール天井床１６は、シールド
ウオール側壁１５の上端に支持された片ＩＩ！ＩＩ支持
横逍木とされている。FIG. 1 is a diagram showing the overall configuration of the reactor building after completion, and numeral 10 indicates the reactor building. The reactor building IO is a self-supporting reactor containment vessel 12 that houses a reactor pressure vessel 11.
A reactor containment vessel shield wall 13 for shielding the nuclear reactor is arranged on the outside thereof. The reactor containment vessel shield wall 13 is made of concrete mat 14
Shield wall RF erected from! It consists of an A wall 15 and a shield wall ceiling floor 16 that constitutes the ceiling of the shield wall. Shield wall ceiling floor 16
is separated from the reactor containment vessel 12 because the reactor containment vessel 12 deforms due to thermal effects during reactor operation, and therefore the shield wall ceiling floor 16 is supported on the upper end of the shield wall side wall 15. Part II! He is said to be a supporter of II.
シールドウオール天井床１６は本発明方法により維１さ
れたものであり、シールトウ４−ル側壁１５の上端より
突出する鉄骨柱１７に結合された構造材としての鉄骨梁
１８を内蔵し、かつ鉄骨梁１８に支持された鉄板型枠１
９及び鉄骨梁１８と型枠１つとの間隔を保つセパレータ
２０を有している。シールドウオール天井床１７の先端
と原子炉格納容器１２との間には、原子炉運転時の熱影
響による原子炉圧力容器工２の捩じれ防止と耐震用にシ
ャラグ２１が設けられている。The shield wall ceiling floor 16 is constructed by the method of the present invention, and has a built-in steel beam 18 as a structural member connected to a steel column 17 protruding from the upper end of the shield wall side wall 15. Iron plate formwork 1 supported by 18
9 and a separator 20 that maintains a distance between the steel beam 18 and one formwork. A shag 21 is provided between the tip of the shield wall ceiling floor 17 and the reactor containment vessel 12 to prevent twisting of the reactor pressure vessel structure 2 due to thermal effects during reactor operation and for earthquake resistance.
シャラグ２１は、第２図に拡大して示すようにメイルシ
ャラグ２２とフィメイルシへ・ラグ２３とからなり、メ
イルシャラグ２２は原子炉格納容器１２のシールドウオ
ール天井床１６に隣接する部位に設けられた補強材２４
に収り付けられ、フィメイルシャラグ２３は鉄骨梁１８
の先端に収り１・１けられ内周の型枠を構成するプレー
ト２５に収り１寸けられている。As shown in an enlarged view in FIG. 2, the shag 21 consists of a mail shag 22 and a female shag 23. 24
The female shag 23 is installed in the steel beam 18.
It fits in the tip of the plate 25 and is cut out by 1.1 inch, and fits in the plate 25 constituting the formwork on the inner periphery.
次に、このように構成された原子炉格納容器シールドウ
オール天井床１６の施工方法を第３図〜第５図を参照し
て説明する。Next, a method of constructing the reactor containment vessel shield wall ceiling floor 16 configured as described above will be explained with reference to FIGS. 3 to 5.
まず、第３図に示すように、マット１４の施工後、原子
炉格納容器１２とシールドウオール側Ｖ１５の工事を行
う。その際、原子炉格納容器】２には、シールドウオー
ル天井床１６のコンクリート打設時の荷重を支持するこ
とを可能にするために、垂直荷重に強く、シールドウオ
ール天井床１６に１１Ａ接する部位に補強材２４（第２
図参照）を取付ｃ１、この補強材２４にメイルシャラグ
２２を収り１・［ける。またシールドウオール側壁１５
の上端には鉄骨柱１７を埋設する。First, as shown in FIG. 3, after the mat 14 is constructed, the reactor containment vessel 12 and the shield wall side V15 are constructed. In this case, the reactor containment vessel] 2 has a structure that is strong against vertical loads and has a portion 11A in contact with the shield wall ceiling floor 16 in order to support the load when concrete is placed on the shield wall ceiling floor 16. Reinforcement material 24 (second
(see figure) is attached c1, and the mail shag 22 is fitted into this reinforcing material 24. Also, the shield wall side wall 15
A steel column 17 is buried at the upper end of the column.
次に、第４図及び第５図に示すように、シールドウオー
ル側壁１５の上端に埋設された鉄骨柱１７に鉄骨梁１８
の一端を支持固定し、この鉄骨梁１８にセパレータ２０
により型枠１９を支持さぜる。また鉄・）１・梁１８の
原子炉格納容器１２ （Ｉｕｌの端部にはプレーｉ・２
５を収り付け、かつこのプレート２５にフィメイルシャ
ラグ２３を接続する。そして原子炉格納容器１２に収り
付けたメイルシャラグ２２と鉄骨梁１８に取付けらたフ
ィメイルシャラグ２３とを仮接続する。この仮接続は、
溶接、ボルト締め、くさび止め等で行うことかできる。Next, as shown in FIGS. 4 and 5, the steel beam 18 is attached to the steel column 17 buried in the upper end of the shield wall side wall 15.
One end of the separator 20 is supported and fixed, and a separator 20 is attached to the steel beam 18.
The formwork 19 is supported by. In addition, the reactor containment vessel 12 (steel) 1 beam 18 (I
5 is placed therein, and a female shag 23 is connected to this plate 25. Then, the male shag 22 housed in the reactor containment vessel 12 and the female shag 23 attached to the steel beam 18 are temporarily connected. This temporary connection is
This can be done by welding, bolting, wedging, etc.
なお第５図においては、メイルシャラグ２２及びフィメ
イルシャラク２３の幾つかを省略して示している。この
ような作業により、原子炉格納容器１２とシールドウオ
ール
が暉１な構造体となり、シールトウ４−ル天井床１６の
コンクリート打設時の荷重を支持することが可能となる
。In FIG. 5, some of the male sharugs 22 and female sharugs 23 are omitted. Through such work, the reactor containment vessel 12 and the shield wall become a solid structure, and it becomes possible to support the load during concrete pouring of the seal tow 4-role ceiling floor 16.
しかる後に、型枠１９上及び鉄骨梁１８の周囲にコンク
リ−１・を打設する。After that, concrete 1 is poured on the formwork 19 and around the steel beams 18.
シールドウオール天井床１６の打設コンクリートか固化
し強度が出た後、メイルシャラグ２２とフィメイルシャ
ラク２３との上記仮接続を解除し、本来必要とするシャ
ラグ２１の機能を与える。After the cast concrete of the shield wall ceiling floor 16 hardens and becomes strong, the above-mentioned temporary connection between the male sharag 22 and the female sharag 23 is released, and the originally required function of the sharag 21 is given.
本施工方法により、従来行っていたシールドウオール天
井床のコンクリ−１〜打設時の荷重を支持する仮設梁及
び仮設支持材は不要となり、据付の合理化を図れる。ま
た鉄骨梁と原子炉格納容器の仮接続をシャラグを利用し
て行うので、既設の部材を利用して仮＋２枕を行うこと
かできる。また従来シャラグの設置に必要としていたシ
ールウオール側の埋込グレートの設定が不要となり、か
つシール１？ウオール天プ１床の施工完了と同時にシャ
ラグのｌＦｆｉ能も与えられるので、シャラグの設置も
簡便に行える。This construction method eliminates the need for temporary beams and temporary supports that support the load during concreting of the shield wall ceiling floor, which was conventionally done, and can streamline the installation. In addition, since the steel beams and the reactor containment vessel are temporarily connected using shag, existing members can be used to temporarily connect the reactor containment vessel. In addition, it is no longer necessary to set an embedded grating on the seal wall side, which was previously required for installing a shag. As soon as the construction of one floor of the wall ceiling is completed, the IFfi capability of the shag rug will be provided, making it easy to install the shag rug.
本発明によれば、仮設梁、仮設支持材等の仮設資材が不
要となり、工事ｆ１゛業量が低減でき、作業性の向上を
図ることができる。According to the present invention, temporary materials such as temporary beams and temporary supports are not required, the amount of work required for construction work can be reduced, and workability can be improved.
また仮接続をシャラグを利用して行う場合は、当該仮接
続をＥ？１設の部材を用いて行える上、シャラグ自体の
設置も簡便にできる。Also, when making a temporary connection using Sharag, make the temporary connection with E? This can be done using a single member, and the installation of the shag itself can be done easily.
第１図は本発明の一実施例による施工方法で施工された
シールドウオール天井床を有する原子炉建屋の断面図で
あり、第２図はその原子炉建屋のシャラグ部分の拡大図
であり、第３図は本発明の施工方法の構造材設置前の状
ＦＩＮを示す断面図であり、第４図は同施工方法のコン
クリート打設前の状態を示す断面図であり、第５図は第
４図の状態を上から見た上平面図であり、第６図は従来
のシールドウオール天井床の施工方法を示す断面図であ
る。
符号の説明
１０・・・原子炉建１１ １２・・・原子炉格納容
器１３・・・原子炉格納容器シールドウオール１５・・
・シールドウオール側壁
１６・・・シールドウオール天井床
１８・・・鉄骨梁（構造材）
・・型枠
１・・・シャラグFIG. 1 is a sectional view of a nuclear reactor building having a shield wall ceiling floor constructed by a construction method according to an embodiment of the present invention, FIG. 2 is an enlarged view of a shag portion of the reactor building, and FIG. FIG. 3 is a cross-sectional view showing the state of FIN before structural material is installed using the construction method of the present invention, FIG. 4 is a cross-sectional view showing the state before concrete is poured using the same construction method, and FIG. 6 is a top plan view of the state shown in FIG. 6, and FIG. 6 is a sectional view showing a conventional shield wall ceiling floor construction method. Explanation of symbols 10...Reactor building 11 12...Reactor containment vessel 13...Reactor containment vessel shield wall 15...
・Shield wall side wall 16...Shield wall ceiling floor 18...Steel beam (structural material)...Formwork 1...Shalag
Claims (2)
支持構造体である原子炉格納容器シールドウォール天井
床の施工方法において、 構造材の一端をシールドウォール側壁の上端に支持させ
、他端を原子炉格納容器に仮接続し、この構造材に型枠
を設置してコンクリートを打設し、コンクリートが固化
後、前記構造材の他端と原子炉格納容器の仮接続を解く
ことを特徴とするシールドウォール天井床の施工方法。(1) In the method of constructing a reactor containment shield wall ceiling floor, which is a single-sided support structure of a reactor building having a self-supporting reactor containment vessel, one end of the structural material is supported on the upper end of the shield wall side wall, and the other end is supported on the upper end of the shield wall side wall. is temporarily connected to the reactor containment vessel, a formwork is installed on this structural member and concrete is poured, and after the concrete has solidified, the temporary connection between the other end of the structural member and the reactor containment vessel is released. Construction method for shield wall ceiling floor.
震用のシャラグを利用して行うことを特徴とする請求項
１記載のシールドウォール天井床の施工方法。(2) The method for constructing a shield wall ceiling floor according to claim 1, wherein the temporary connection between the other end of the structural member and the reactor containment vessel is performed using an earthquake-resistant shag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63148515A JP2559811B2 (en) | 1988-06-16 | 1988-06-16 | Reactor containment vessel shield wall ceiling floor construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63148515A JP2559811B2 (en) | 1988-06-16 | 1988-06-16 | Reactor containment vessel shield wall ceiling floor construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH022988A true JPH022988A (en) | 1990-01-08 |
| JP2559811B2 JP2559811B2 (en) | 1996-12-04 |
Family
ID=15454496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63148515A Expired - Fee Related JP2559811B2 (en) | 1988-06-16 | 1988-06-16 | Reactor containment vessel shield wall ceiling floor construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2559811B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027209A (en) * | 2021-02-05 | 2021-06-25 | 上海核工程研究设计院有限公司 | Semi-fabricated ultra-high performance concrete (UHPC) combined shielding shell |
-
1988
- 1988-06-16 JP JP63148515A patent/JP2559811B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027209A (en) * | 2021-02-05 | 2021-06-25 | 上海核工程研究设计院有限公司 | Semi-fabricated ultra-high performance concrete (UHPC) combined shielding shell |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2559811B2 (en) | 1996-12-04 |
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