JPH0721208B2 - Steel plate concrete turbine bin mount - Google Patents
Steel plate concrete turbine bin mountInfo
- Publication number
- JPH0721208B2 JPH0721208B2 JP62009848A JP984887A JPH0721208B2 JP H0721208 B2 JPH0721208 B2 JP H0721208B2 JP 62009848 A JP62009848 A JP 62009848A JP 984887 A JP984887 A JP 984887A JP H0721208 B2 JPH0721208 B2 JP H0721208B2
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- steel plate
- hole
- air
- 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.)
- Expired - Lifetime
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Joining Of Building Structures In Genera (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はコンクリートを鋼板構造物内に打設したラーメ
ン構造物に係り、特にタービン発電機用架台のコンクリ
ートの打設に関し好適で強靱な接合部の形状及び構造に
関する。Description: TECHNICAL FIELD The present invention relates to a rigid frame structure in which concrete is placed in a steel plate structure, and is particularly suitable and strong joining for placing concrete in a pedestal for a turbine generator. The shape and structure of the part.
従来鋼板コンクリート製タービン発電機用架台は、特開
昭57−165795に示されたものがある。この従来技術にお
いては、柱と梁の接合部については考慮されて居らず、
又、従来の鋼板コンクリート製の概念は、例えば第４図
に示すように柱１と梁６を仕切るダイヤフラム４の中央
に穴２を開け、柱１から打設し始めた後、ダイヤフラム
４に設けられた穴２を通じて梁６にコンクリートを充て
んさせるしくみになつていた。Conventionally, a steel plate concrete turbine generator mount is disclosed in JP-A-57-165795. In this conventional technique, the joint between the column and the beam is not considered,
Further, the conventional concept of steel plate concrete is that, for example, as shown in FIG. 4, a hole 2 is made in the center of a diaphragm 4 that separates a column 1 and a beam 6, and after starting the driving from the column 1, the diaphragm 4 is provided. Through the hole 2 formed, the beam 6 was filled with concrete.
上記従来技術は、梁にコンクリートを打設する際の空気
の逃げ道について配慮がされて居らず、従つて梁のコン
クリート充てん性が悪くなるという問題点があつた。こ
のためコンクリートと鋼材の間にすき間が生じ、コンク
リートと鋼材が一体となつて複合材として働くために得
られる弾塑性域での耐力の伸びが見られなくなるという
問題点があり、信頼性が低かつた。The above-mentioned prior art does not give consideration to the escape route of air when placing concrete on the beam, and thus has a problem that the concrete filling property of the beam is deteriorated. Therefore, there is a gap between the concrete and the steel material, and the concrete and steel materials work together as a composite material to prevent the elongation of the yield strength in the elasto-plastic region, which is a problem. It was
また、従来の様な構造では、柱・梁接合部は応力集中を
受けやすく、接合部からひび割れが生じるという問題点
があつた。In addition, the conventional structure has a problem that the column-beam joint is easily subjected to stress concentration and cracks are generated from the joint.
本発明の目的は、コンクリートの充てん性を改善と、同
時に接合部の応力集中を防いだ耐震性に優れたタービン
発電機用架台を開発することにある。An object of the present invention is to develop a turbine-generator pedestal that has improved concrete filling properties and, at the same time, prevents stress concentration at joints and has excellent earthquake resistance.
上記目的を達成するための手段は、鋼板構造物内にコン
クリートを打設した柱部材及び梁部材から成るタービン
発電機用架台において、前記柱と前記梁との接合部近傍
の前記梁の上面側に、柱上部に向かう勾配を設け、前記
接合部近傍の前記勾配部位に空気穴を設け、前記勾配の
前記柱への付け根近傍に前記柱の内側と前記桁の内側と
を連通するダイヤフラム穴を備えてなることを特徴とす
る鋼板コンクリート製タービン発電機用架台である。Means for achieving the above-mentioned object is a turret for a turbine generator comprising a pillar member and a beam member in which concrete is cast in a steel plate structure, and the upper surface side of the beam near the joint between the pillar and the beam. A gradient toward the upper part of the column, an air hole is provided in the gradient part near the joint, and a diaphragm hole that connects the inside of the column and the inside of the girder is provided near the base of the gradient to the column. It is a steel plate concrete turbine generator mount characterized by being provided.
梁上面に設けられた空気穴は、梁へコンクリートを打設
する際、梁内部の空気を逃す役目をする。それによつ
て、梁内部に空気が溜まることはなくコンクリートの充
てん性は著しく改善される。The air holes provided on the upper surface of the beam serve to escape the air inside the beam when concrete is poured into the beam. As a result, no air is trapped inside the beam, and the fillability of concrete is significantly improved.
さらに、柱・梁接合部にテーパー（勾配）を設けること
により、梁へコンクリートを打設する際万一、梁内部に
空気が残つていたとしても、軽い空気はこのテーパーを
伝わり最上部に押しやられ、最上部に設けられた空気逃
し穴から外部へ排出される。このため、梁に空気が溜ま
ることはない。Furthermore, by providing a taper (gradient) at the column-beam joint, even if air remains inside the beam when pouring concrete into the beam, light air will propagate through this taper and reach the top. It is pushed and discharged to the outside through the air vent hole provided at the top. Therefore, no air is accumulated on the beams.
また柱・梁接合部のテーパーは空気溜を上部に集める効
果を持つと共に応力集中を防ぐ作用を有している。さら
に、梁の下面にもテーパーを設けることにより、梁上面
のテーパーと合わせて、柱・梁接合部の応力集中を緩和
し、ひび割れを防ぐことができる。Further, the taper of the column / beam joint has an effect of collecting the air reservoir in the upper part and also has an effect of preventing stress concentration. Further, by providing a taper on the lower surface of the beam as well, together with the taper on the upper surface of the beam, stress concentration at the column-beam joint can be relaxed and cracking can be prevented.
さらに、ダイヤフラムに開けられていた穴を上方に移す
ことにより、コンクリート打設後梁部分に生じた低品質
で比重の軽い成分は、この穴より柱へ流れ、柱上部で除
去することができる。Further, by moving the hole formed in the diaphragm upward, the low quality and low specific gravity component generated in the beam portion after the concrete is poured flows into the column from this hole and can be removed at the upper part of the column.
以下、本発明の実施例１を第１図により説明する。第１
図に示す如く、柱１（約3m×約3m）及び梁６（約2.5m×
約3.4m）からラーメン構造物において、空気を逃すとい
う観点から、柱・梁接合部近傍の梁上面に空気穴３（約
φ20cm）を設けた。この穴３は梁６へコンクリートを充
てんする際に空気を逃がし、コンクリートの充てん性を
保障するだけでなく、作業者のコンクリート充てん確認
用の穴となる。Hereinafter, Embodiment 1 of the present invention will be described with reference to FIG. First
As shown in the figure, pillar 1 (about 3m x about 3m) and beam 6 (about 2.5m x
From the viewpoint of letting air escape from the frame structure from about 3.4 m), an air hole 3 (about φ20 cm) was provided on the upper surface of the beam near the column-beam joint. This hole 3 allows air to escape when the beam 6 is filled with concrete, not only guarantees the filling property of the concrete, but also serves as a hole for confirming the concrete filling of the operator.
また、柱・梁接合部近傍における梁上面にテーパ５を設
けた。これにより、万一梁内部に空気溜が残つていたと
しても、比重の軽い空気はこのテーパ５を伝わり最上部
へ押しやられるが、そこには空気穴３があるため空気を
逃すことができる。さらにテーパ５は柱・梁接合部の応
力集中を緩和する働きをしており、下方にもテーパ５を
設けた場合さらに強靱な構造となつている。Further, a taper 5 is provided on the upper surface of the beam near the column / beam joint. As a result, even if an air pool remains inside the beam, air having a low specific gravity is pushed through the taper 5 to the uppermost portion, but there is an air hole 3 there, so that the air can escape. . Further, the taper 5 has a function of relieving the stress concentration at the column-beam joint portion, and when the taper 5 is provided below the taper 5, the structure becomes tougher.
また、ダイヤフラム穴２を上方にずらした構造となつて
いるため、梁へ打設したコンクリートのうちで軽く低品
質な成分はこの穴２を通じて柱１へ流れ、柱１の上部で
除去可能となつている。また、この穴を矩形にすること
によりその効果は大きくなる。また、打設穴７を設ける
ことにより梁への打設はさらに容易になる。Moreover, since the diaphragm hole 2 is shifted upward, light and low-quality components of the concrete cast into the beam flow to the pillar 1 through this hole 2 and can be removed at the top of the pillar 1. ing. Further, the effect is enhanced by making this hole rectangular. Further, by providing the driving hole 7, the driving on the beam becomes easier.
このような鋼板構造物内に以下のような手順でコンクリ
ートを打設することにより、鋼板コンクリート製タービ
ン架台の製作実施例を示す。An example of producing a steel frame concrete turbine mount will be described by placing concrete in such a steel plate structure in the following procedure.
まず、第１図の如く梁上部に開けられた打設穴７から静
かにコンクリートを打設し始める。その後、まだ固まら
ないコンクリートの表面が上昇し梁６の上面に達するの
が、打設穴７から確認されると打設穴７を塞ぐ。その
後、柱上部からコンクリートを打設し続けるとまだ固ま
らないコンクリートの表面が上昇し、ダイヤフラム穴２
より梁６のテーパ５に流れ込む。この時テーパ５にあつ
た空気は、空気穴３から大気中へ押し出されるため、テ
ーパー部に空気が溜まることはない。それを空気穴３か
ら確認できた時点で穴３を塞ぎ、以下柱の打設を行い、
全体に打設を完了させる。この時バイブレータを使用
し、まだ固まらないコンクリートをかきまぜると、万
一、梁内部に残つた空気溜及びコンクリートの低品質な
成分は上昇し、柱上面で除去することができる。First, as shown in FIG. 1, the concrete is gently placed from the placing hole 7 formed in the upper portion of the beam. After that, when it is confirmed from the casting hole 7 that the surface of the concrete that has not yet solidified rises and reaches the upper surface of the beam 6, the casting hole 7 is closed. After that, if concrete is continuously cast from the top of the pillar, the surface of the concrete that has not yet solidified rises and the diaphragm hole 2
It flows into the taper 5 of the beam 6 more. At this time, the air hitting the taper 5 is pushed out of the air hole 3 into the atmosphere, so that the air is not accumulated in the taper portion. When it can be confirmed from the air holes 3, the holes 3 are closed, and the pillars are placed below.
Complete the entire casting. At this time, if a vibrator is used to stir the concrete that has not solidified yet, the air pool left inside the beam and low-quality components of the concrete should rise and can be removed on the top surface of the column.
本実施例によれば、柱・梁のまだ固まらないコンクリー
トがテーパ５を通じ完全に連続的に継ながるため梁への
打設が非常に容易になつている。According to this embodiment, since the concrete which is not yet solidified in the pillars and beams is continuously continuously connected through the taper 5, it is very easy to place the concrete on the beams.
また、第２図に示すよう、空気穴３を設け、柱１からコ
ンクリートを打設し、ダイヤフラム穴２より梁へ打設を
行なつた場合でも梁への充てん性は十分である。（実施
例２） 第３図に鋼板コンクリート製タービン発電機用架台の全
体図を示す。柱１及び梁６を鋼板コンクリート製とし、
デツキ８は鋼製となつている。本発明はこのようなコン
クリートと鋼板からなる複合構造物の柱・接合部の構造
に関するものである。Further, as shown in FIG. 2, even when the air holes 3 are provided, concrete is cast from the pillars 1 and the beams are cast from the diaphragm holes 2, the beam can be sufficiently filled. (Embodiment 2) FIG. 3 shows an overall view of a steel plate concrete turbine generator mount. The pillar 1 and the beam 6 are made of steel plate concrete,
The deck 8 is made of steel. The present invention relates to the structure of columns and joints of such a composite structure made of concrete and a steel plate.
本発明によれば、コンクリートが十分に充てんされるの
でコンクリートと鋼板が複合材として働き十分な耐震性
・信頼性が得られる効果がある。さらに、柱・梁接合部
にテーパーを設けることにより柱・梁接合部における応
力集中を回避できるので構造物としての強度の向上が見
られる。According to the present invention, since concrete is sufficiently filled, concrete and a steel plate work as a composite material, and there is an effect that sufficient earthquake resistance and reliability are obtained. Further, by providing a taper at the column-beam joint, it is possible to avoid stress concentration at the column-beam joint, so that the strength of the structure is improved.
また、空気穴３は空気を逃し、コンクリートの十分な充
てん性を保証するだけでなく、目視によりコンクリート
が十分に充てんしたことの確認を行なうことができるた
め施工面からも信頼性の向上がはかれる。In addition, the air holes 3 allow air to escape, and not only guarantee sufficient filling of concrete, but also it is possible to visually confirm that the concrete is sufficiently filled, so that reliability can be improved in terms of construction. .
さらに、まだ固まらないコンクリート中の不用成分は第
１図ダイヤフラム穴２を通じ柱１へ流れ柱上面で取り除
くことができるため、コンクリートの良好な品質を得る
効果がある。Furthermore, since unnecessary components in the concrete which have not yet solidified can flow to the pillar 1 through the diaphragm hole 2 in FIG. 1 and can be removed on the upper surface of the pillar, there is an effect of obtaining good quality of concrete.
第１図は本発明の実施例１を示す図、第２図は本発明の
実施例２を示す図、第３図は鋼板コンクリート製タービ
ン発電機用架台の全体図、第４図は従来型の柱・梁接合
部を示している図である。 １…柱、２…ダイヤフラム穴、３…空気穴、４…ダイヤ
フラム、５…テーパー、６…梁、７…打設用穴、８…デ
ツキ。FIG. 1 is a diagram showing a first embodiment of the present invention, FIG. 2 is a diagram showing a second embodiment of the present invention, FIG. 3 is an overall view of a steel plate concrete turbine generator mount, and FIG. 4 is a conventional type. It is a figure which shows the pillar-beam joint part of. 1 ... Pillar, 2 ... Diaphragm hole, 3 ... Air hole, 4 ... Diaphragm, 5 ... Taper, 6 ... Beam, 7 ... Placing hole, 8 ... Decks.
Claims (1)
部材及び梁部材から成るタービン発電機用架台におい
て、前記柱と前記梁との接合部近傍の前記梁の上面側
に、柱上部に向かう勾配を設け、前記接合部近傍の前記
勾配部位に空気穴を設け、前記勾配の前記柱への付け根
近傍に前記柱の内側と前記桁の内側とを連通するダイヤ
フラム穴を備えていることを特徴とする鋼板コンクリー
ト製タービン発電機用架台。1. A frame for a turbine generator comprising a pillar member and a beam member, in which concrete is cast in a steel plate structure, in the upper surface side of the beam near the joint between the pillar and the beam, and in the upper portion of the pillar. An inclined hole is provided, an air hole is provided in the gradient portion near the joint, and a diaphragm hole that communicates the inside of the pillar with the inside of the girder is provided near the base of the gradient to the pillar. Characteristic steel plate concrete frame for turbine generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62009848A JPH0721208B2 (en) | 1987-01-21 | 1987-01-21 | Steel plate concrete turbine bin mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62009848A JPH0721208B2 (en) | 1987-01-21 | 1987-01-21 | Steel plate concrete turbine bin mount |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63181828A JPS63181828A (en) | 1988-07-27 |
| JPH0721208B2 true JPH0721208B2 (en) | 1995-03-08 |
Family
ID=11731551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62009848A Expired - Lifetime JPH0721208B2 (en) | 1987-01-21 | 1987-01-21 | Steel plate concrete turbine bin mount |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0721208B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012251644A (en) * | 2011-06-06 | 2012-12-20 | Toshiba Corp | Generator foundation stand and magnetic shield thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3685830B2 (en) * | 1995-02-24 | 2005-08-24 | 育弘 松崎 | Steel-concrete composite beam structure |
| JP4684800B2 (en) * | 2005-08-15 | 2011-05-18 | 鹿島建設株式会社 | Joint structure of steel plate concrete members |
| JP7162492B2 (en) * | 2018-10-24 | 2022-10-28 | 前田建設工業株式会社 | Concrete filling method for CFT columns |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4994116A (en) * | 1973-01-12 | 1974-09-06 | ||
| JPS57165795A (en) * | 1981-04-03 | 1982-10-12 | Hitachi Ltd | Method of constructing atomic power turbine supporting table |
-
1987
- 1987-01-21 JP JP62009848A patent/JPH0721208B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012251644A (en) * | 2011-06-06 | 2012-12-20 | Toshiba Corp | Generator foundation stand and magnetic shield thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63181828A (en) | 1988-07-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |