JP3111282B2 - Prefabricated concrete storage tank - Google Patents
Prefabricated concrete storage tankInfo
- Publication number
- JP3111282B2 JP3111282B2 JP02228234A JP22823490A JP3111282B2 JP 3111282 B2 JP3111282 B2 JP 3111282B2 JP 02228234 A JP02228234 A JP 02228234A JP 22823490 A JP22823490 A JP 22823490A JP 3111282 B2 JP3111282 B2 JP 3111282B2
- Authority
- JP
- Japan
- Prior art keywords
- prefabricated
- horizontal
- concrete
- storage tank
- side wall
- 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
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【０００１】[0001]
この発明は、コンクリート製円筒貯槽のプレハブ化と
プレストレスを導入して組立てるプレハブコンクリート
貯槽に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prefabricated concrete storage tank which is prefabricated and assembled by introducing prestress into a concrete cylindrical storage tank.
【０００２】[0002]
コンクリート製円筒貯槽の建設は、一般的には型枠を
使用して現地で配筋、コンクリート打設を順次行って貯
槽周壁を構築している。しかし、この現地コンクリート
打設の方法によると、数多くの型枠が必要で、現地での
組立作業が繁雑で品質管理も難しく工期も長くなる等と
いった問題点があった。In general, concrete cylindrical storage tanks are constructed by using a formwork, arranging reinforcing bars locally, and placing concrete in order, to build the storage tank peripheral wall. However, this method of casting concrete on site requires a large number of molds, and as a result, there is a problem that on-site assembly work is complicated, quality control is difficult, and the construction period is long.
【０００３】 これに対して、あらかじめコンクリートのプレハブユ
ニットを工場等で製作しておき、現地でこのプレハブユ
ニットを組立てて効率良く円筒タンクを構築するように
した従来技術として、例えば以下の公報に開示された発
明がある。On the other hand, as a prior art in which a prefabricated concrete unit is manufactured in advance in a factory or the like, and the prefabricated unit is assembled on site to efficiently construct a cylindrical tank, it is disclosed in the following publications, for example. There is an invention that was made.
【０００４】 特公平１−54511号の「円筒タンク施工方法」の発明
は、プレフアブ化したコンクリートブロック部と該コン
クリートブロック部に添設されたメタルライナーとより
成る円筒壁ユニットを順に積み上げて円筒タンクを施工
する方法に関するもので、配筋されたコンクリートブロ
ック部の縁部よりメタルライナーを張出するように添設
し、メタルライナーを接合して積み上げ、配筋のつなぎ
込み、目地のコンクリート打設を行う施工方法としたも
のである。The invention of Japanese Patent Publication No. 1-54511, entitled "Cylinder tank construction method" is to provide a cylindrical tank by sequentially stacking a cylindrical wall unit composed of a pre-fabricated concrete block and a metal liner attached to the concrete block. This is related to the method of constructing a concrete block, and a metal liner is attached from the edge of the reinforced concrete block so that it protrudes, the metal liner is joined and piled up, the reinforcement is connected, and the concrete is poured into the joint. Is a construction method for performing the above.
【０００５】 また、特開昭60−23184号の「プレストレスコンクリ
ートタンク」の発明は、内側にスキンプレートを設けた
セグメントの外側円周方向に沿って挿通孔を形成し、ワ
イヤーを挿通させると共に、緊縛して各セグメントを結
束して積み重ねて形成したプレストレスコンクリートタ
ンクとしたものである。Further, the invention of Japanese Patent Application Laid-Open No. 60-23184, entitled "Prestressed Concrete Tank" discloses that a through-hole is formed along the outer circumferential direction of a segment provided with a skin plate on the inner side to allow a wire to pass therethrough. And a prestressed concrete tank formed by binding the segments and stacking them.
【０００６】[0006]
前述した従来技術の発明は何れも、壁体ユニットの形
状が単一の平板パネルで構成されており、貯槽側壁要所
に合った形状となっていないので、側壁の要所に応じた
強度と機能を有することができない。In any of the above-mentioned prior art inventions, the wall unit is formed of a single flat panel, and does not have a shape that matches the storage tank side wall, so that the strength and strength corresponding to the key points of the side wall are obtained. Cannot have function.
【０００７】 また、最下部の壁体ユニットは、あらかじめテンショ
ンを与えたプレストレストコンクリートユニット体とな
っていないので、荷重が最も大きい部材としての充分な
強度が得られ難いという難点があった。Further, since the lowermost wall unit is not a prestressed concrete unit pre-tensioned, there is a problem that it is difficult to obtain sufficient strength as a member having the largest load.
【０００８】 また、前者のユニット体の接合は、特に水平部の継手
がメタルライナーを接合して積み上げるので不安定な
上、繁雑で壁体の水平、垂直の位置合わせが難しかっ
た。In addition, the former unit body is particularly unstable because the joints in the horizontal portion are joined together by stacking the metal liners, and it is complicated, and it is difficult to align the horizontal and vertical walls.
【０００９】 また、後者のユニット体の接合は、ユニット体端部を
単に重ね合わせているため水平部および垂直部の継手部
がバランスよく強固にならないという問題があった。Further, in the latter joining of the unit bodies, there is a problem that the joints of the horizontal part and the vertical part do not become strong in a well-balanced manner because the ends of the unit bodies are simply overlapped.
【００１０】 この発明は、前述の問題点を解決するためになされた
もので、その目的とするところは、プレハブユニットを
貯槽側壁の要所に合った形状に分割形成し、特に荷重の
最もかかる側壁の下部および底版外周部を剛結一体構造
とした最下部ユニットはプレストレスト構造体として強
度を高め、また各ユニットの接合は、水平部を鋼板の溶
接により簡単強固に行い、垂直部はコンクリートモルタ
ル打設により強固に行い、さらに組立てたユニット体の
全体をテンション材で結合して、強度が強く、安全性の
高い、施工が容易なプレハブコンクリート貯僧を提供す
ることにある。The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to form a prefabricated unit by dividing it into a shape conforming to a key portion of a storage tank side wall, and particularly to apply the most load. The lowermost unit, which has a rigidly integrated structure at the lower part of the side walls and the outer periphery of the bottom slab, increases the strength as a prestressed structure, and the joints of each unit are made easily and firmly by welding steel plates at the horizontal part, and concrete mortar at the vertical part An object of the present invention is to provide a prefabricated concrete storage monk which has high strength, high safety, and easy construction, by firmly performing casting and further combining the assembled unit body with a tension member.
【００１１】[0011]
この発明に係るプレハブコンクリート貯槽は、コンク
リート製円筒貯槽の側壁を構成するプレハブユニット
を、底版外周部の底壁と側壁下部とを剛結一体構造にし
たフーチング部と、フーチング部の上に積み重ね組立て
る側壁中間直胴部の胴体部と、胴体部の上に積み重ね組
立てる側壁上端部の胴上部にて分割形成し、組立てたプ
レハブユニット全体をテンション材で緊張結合するプレ
ハブコンクリート貯槽であって、上記プレハブユニット
を積み重ねて組立てる際に面接合するフーチング部と胴
体部との間および胴体部と胴上部との間の各水平接合部
は、その上下接合面に水平な平滑面を有する鋼板枠を設
けた水平開先部に形成し、かつ組立てる際に接合する左
右横方向のフーチング部ユニット同士の間、胴体部ユニ
ット同士の間および胴上部ユニット同士の間の各直接接
合部は、その相互接合部に突状部を延出して設けた凸状
段差形状の垂直開先部に形成するとともに、上記各水平
接合部は鋼板枠相互の内外両端縁を溶着溶接して結合
し、かつ上記各垂直接合部は突状部相互を突き合わせて
形成される開先部空間にコンクリートモルタルを充填打
設して結合するものである。In the prefabricated concrete storage tank according to the present invention, the prefabricated unit constituting the side wall of the concrete cylindrical storage tank is stacked and assembled on the footing part in which the bottom wall of the outer periphery of the bottom slab and the lower part of the side wall are rigidly integrated. A prefabricated concrete storage tank in which a body part of a side wall intermediate straight body part and a body part of an upper end part of a side wall to be stacked and assembled on the body part are divided and tension-bonded to the entire assembled prefabricated unit with a tension material. When the units are stacked and assembled, each horizontal joint between the footing part and the body part and between the body part and the upper part, which are surface-joined when the units are assembled, are provided with a steel plate frame having a horizontal smooth surface on the upper and lower joint surfaces. Formed on the horizontal groove and joined between the left and right lateral footing unit, the body unit, and the body Each direct joint between the unit units is formed as a vertical groove having a convex stepped shape provided with a protruding portion extending from the mutual joint, and the horizontal joints are formed between the steel plate frames. The inner and outer edges are welded and joined, and the vertical joints are joined by filling and casting concrete mortar into a groove space formed by abutting the protruding portions.
【００１２】 また、上記プレハブコンクリート貯槽フーチング部の
プレハブユニットを、底版外周部にあらかじめストレス
を導入したプレテンション材を埋設してなるプレストレ
スト構造体とするものである。Further, the prefabricated unit of the prefabricated concrete storage tank footing portion is a prestressed structure in which a pretension material in which stress is introduced in advance is buried in the outer periphery of the bottom slab.
【００１３】[0013]
プレハブユニットは、各部で必要な強度が得られるよ
うに貯槽側壁の要所に適した三つの形状体より構成し、
その組立てたプレハブユニットは全体を水平方向と垂直
方向のそれぞれに配設したテンション材で必要な張力が
付与されて緊張結合し、貯槽側壁が構築される。The prefabricated unit is composed of three shapes suitable for key points on the storage tank side wall so that the required strength can be obtained in each part,
The prefabricated unit thus assembled is provided with necessary tension by tension members arranged in the horizontal direction and the vertical direction as a whole, so that the prefabricated units are tightly connected to each other, thereby forming the storage tank side wall.
【００１４】 三つの形状体最下部のフーチング部ユニットは、強度
が増すユニット体となるプレストレスト構造体にするこ
とによって、組立現場におけるテンション材の緊張力調
整が簡単となり、発生応力に適合させやすくなる。The footing unit at the bottom of the three shaped bodies is a prestressed structure that is a unit body with increased strength, so that the tension adjustment of the tension material at the assembly site becomes easy and it is easy to adapt to the generated stress. .
【００１５】 プレハブユニットの水平接合部は水平開先部の鋼板枠
相互を合致させて溶着溶接結合し、かつ垂直接合部はコ
ンクリートモルタル充填打設結合でそれぞれ結合するこ
とによって、結合作業が簡単となり、加えて強固な結合
部強度のバランス機能をもたせられる。[0015] The horizontal joints of the prefabricated units are welded and joined together so that the steel frames of the horizontal groove are aligned with each other, and the vertical joints are joined by concrete mortar filling and casting joints, thereby simplifying the joining work. In addition, a strong balance of the joint strength can be provided.
【００１６】[0016]
この発明を実施例の図に基づいて詳細に説明する。 第１図は、この発明に係るプレハブコンクリート貯槽
の一実施例であるコンクリート外槽を有する低温二重殻
貯槽の部分断面図である。内槽２にLPGやLNG等の低温液
化ガスを収容し、保冷層とシールメタルを介して外周に
コンクリートよりなる外槽１が形成されている。The present invention will be described in detail with reference to the drawings of an embodiment. FIG. 1 is a partial cross-sectional view of a low-temperature double-shelled storage tank having an outer concrete tank which is an embodiment of a prefabricated concrete storage tank according to the present invention. An inner tank 2 contains a low-temperature liquefied gas such as LPG or LNG, and an outer tank 1 made of concrete is formed on the outer periphery of the inner tank 2 via a cold insulation layer and a seal metal.
【００１７】 コンクリート外槽１は、底版外周部および側壁下部を
剛結一体構造としたフーチング部４と、側壁中間の直胴
部を構成する胴体部５と、側壁上部のリングビーム部を
構成する胴上部６とからなるプレハブユニットを組立
て、全体をテンション材で結合して構築される。The concrete outer tub 1 forms a footing portion 4 having an outer peripheral portion of a bottom plate and a lower portion of a side wall rigidly integrated, a body portion 5 forming a straight body portion in the middle of the side wall, and a ring beam portion of an upper portion of the side wall. A prefabricated unit composed of the upper body 6 is assembled, and the whole is connected with a tension material to be constructed.
【００１８】 この発明に係るコンクリート側壁プレハブユニットの
一実施例を、第２図、第３図、第４図の斜視説明図に示
す。 第２図は側壁下部および底版外周部3aを剛結一体に結
合したコーナー分を構成する最下部のフーチング部４、
第３図は側壁中間の直胴部を構成する胴体部５、第４図
は側壁上端部のリングビーム部を構成する胴上部６のプ
レハブユニットである。各プレハブユニットは、縦横に
所定の間隔をおいて縦シース７及び横シース８を埋設し
た鉄筋コンクリートで形成する。One embodiment of the concrete side wall prefabricated unit according to the present invention is shown in the perspective explanatory views of FIGS. 2, 3 and 4. FIG. 2 shows a lowermost footing portion 4, which constitutes a corner portion in which the lower side wall and the outer peripheral portion 3a of the bottom plate are rigidly connected integrally,
FIG. 3 shows a prefabricated unit of a body part 5 constituting a straight body part in the middle of the side wall, and FIG. 4 shows a prefabricated unit of a body part 6 constituting a ring beam part at an upper end part of the side wall. Each prefabricated unit is formed of reinforced concrete in which the vertical sheath 7 and the horizontal sheath 8 are embedded at predetermined intervals in the vertical and horizontal directions.
【００１９】 また、各プレハブユニットの接合部端面は、水平接合
部端面を縦シース７を埋設した平滑面の鋼板製の水平開
先部10に形成し、垂直接合部端面を横シース８を延出す
るとともに鉄筋９を延出し、図示のように突状部11Aを
延出して設けた凸状段差形状を有する垂直開先部11に形
成する。The joint end face of each prefabricated unit is formed by forming a horizontal joint end face into a flat steel horizontal groove portion 10 in which a vertical sheath 7 is embedded, and extending the vertical joint end face by a horizontal sheath 8. At the same time, the reinforcing bar 9 is extended, and the protruding portion 11A is formed as shown in FIG.
【００２０】 第５図は、フーチング部４のユニットの側端面説明図
である。コンクリートユニットの内部に、縦シース７、
横シース８、鉄筋９を配設し、縦シース７には垂直方向
テンション材のPC鋼材14を底端部に定着材13を設けて挿
設する。 プレストレスト構造体となるように、フーチング部４
の底版外周部3aには、あらかじめストレスを導入したプ
レテンション材12を埋設しておく。FIG. 5 is a side end view of the unit of the footing unit 4. Inside the concrete unit, a vertical sheath 7,
A horizontal sheath 8 and a reinforcing bar 9 are provided, and a vertical tension member PC steel material 14 is inserted into the vertical sheath 7 with a fixing material 13 provided at the bottom end. Footing part 4 so as to form a prestressed structure
A pretension material 12 to which stress has been introduced in advance is buried in the bottom plate outer peripheral portion 3a.
【００２１】 第６図、第７図、第８図、第９図は、この発明のプレ
ハブユニットの端面開先部の構造と接合手段の一実施例
を示し、水平開先部を鋼板枠にて形成したものである。
以下その詳細を説明する。FIG. 6, FIG. 7, FIG. 8, and FIG. 9 show one embodiment of the structure of the end face groove of the prefabricated unit of the present invention and the joining means. It was formed.
The details will be described below.
【００２２】 第６図は、プレハブユニットの端面つまり水平開先部
と垂直開先部を示す斜視図である。 水平開先部10は、図示のように、縦シース７を埋設し
た穴を明けた、水平な平滑面を有する鋼板枠10Aを設け
て形成する。また、凸状段差形状の垂直開先部11は、一
つの実施例として例えばコンクリート端部を凸状に張り
出した場合の突状部11Aを形成し、該突状部11Aの端面に
は平板状の弾性体15を張設する。また、垂直開先部11に
は、横シース８及び鉄筋９を延出させる。FIG. 6 is a perspective view showing an end face of the prefabricated unit, that is, a horizontal groove portion and a vertical groove portion. As shown in the figure, the horizontal groove 10 is formed by providing a steel plate frame 10A having a horizontal smooth surface with a hole in which the vertical sheath 7 is embedded. In addition, the vertical groove portion 11 having a convex step shape, as one embodiment, forms a protruding portion 11A when, for example, a concrete end portion protrudes in a convex shape, and a flat surface is formed on an end face of the protruding portion 11A. The elastic body 15 is stretched. Further, the horizontal sheath 8 and the reinforcing bar 9 are extended from the vertical groove 11.
【００２３】 第７図は、垂直開先部を矩形凸状に形成した場合の垂
直接合部の水平断面を示し、第８図は、垂直開先部を台
形凸状に形成した場合の垂直接合部の水平断面を示す。 左右横方向に接続するユニットの対向する垂直開先部
11の突状部11Aに張設した弾性体15を密着し、横シース
８及び鉄筋９をそれぞれ接続した後、開先部空間にノン
シュリンクのコンクリートモルタル16を両側面より打設
して形成する。17は外槽周壁の内面側に設けるシールメ
タルである。FIG. 7 shows a horizontal cross section of a vertical joint portion when the vertical groove portion is formed in a rectangular convex shape, and FIG. 8 shows a vertical cross section when the vertical groove portion is formed in a trapezoidal convex shape. 2 shows a horizontal section of the part. Opposite vertical grooves of units connected in the horizontal direction
After the elastic body 15 stretched to the projecting portion 11A of 11 is brought into close contact with the horizontal sheath 8 and the reinforcing bar 9, the non-shrink concrete mortar 16 is formed by casting from both sides into the groove space. . Reference numeral 17 denotes a seal metal provided on the inner surface side of the outer tank peripheral wall.
【００２４】 第９図は、水平開先部の接合部の垂直断面を示す。 上下縦方向に接続するユニットの対向する水平開先部
10上下の鋼板枠10A,10Aを密着させ、縦シース７を一致
させて、該鋼板枠10A,10Aの水平端縁部を内外両側より
溶着して形成する。18は外側水平溶着部、19は内側水平
溶着部、17はシールメタルである。FIG. 9 shows a vertical cross section of the junction of the horizontal groove. Opposing horizontal grooves of units connected vertically and vertically
The upper and lower steel plates 10A, 10A are brought into close contact with each other, the vertical sheath 7 is made to coincide, and the horizontal edges of the steel plates 10A, 10A are welded from both inside and outside. Reference numeral 18 denotes an outer horizontal welded portion, 19 denotes an inner horizontal welded portion, and 17 denotes a seal metal.
【００２５】 上述のように、プレハブユニットを、貯槽側壁の要所
に適した三つの形状に分割形成すれば、フーチング部、
胴体部および胴上部の各部で必要な強度を有する側壁部
材が予め得られる結果、現場で側壁の各部に応じて使用
する配筋量等を調整する面倒さがなくなり施工期間が大
幅に短縮される。As described above, if the prefabricated unit is divided into three shapes suitable for key points on the storage tank side wall, the footing portion,
As a result of obtaining in advance the side wall members having the necessary strength in each part of the torso part and the upper part of the torso, it is not necessary to adjust the amount of reinforcement used in accordance with each part of the side wall at the site, and the construction period is greatly reduced. .
【００２６】 また、各ユニット体は、水平方向と垂直方向のそれぞ
れに配設したテンション材で必要な張力を付与し緊張結
合することによって、充分なプレストレスがかかった強
度の高い貯槽側壁となる。Further, each unit body becomes a high strength storage tank side wall with sufficient pre-stress by applying necessary tension with tension members arranged in the horizontal direction and the vertical direction and by tightly coupling. .
【００２７】 側壁下部および底版外周部を剛結一体構造としたフー
チング部ユニットは、あらかじめストレスが導入された
プレテンション材を埋設した構造とすることによって、
貯槽側壁下部の強度が増す。The footing unit having the lower side wall and the outer periphery of the bottom slab rigidly integrated with each other has a structure in which a pretension material to which stress is introduced in advance is embedded.
The strength of the lower part of the storage tank side wall increases.
【００２８】 プレハブユニットの少なくても水平部端面に鋼板枠を
設けた開先部を形成すれば、この部分の接合は、コンク
リート打設による接合を必要とせず、開先部鋼板枠を溶
着することで簡単かつ強固に接合できる。If a groove with a steel plate frame is formed at least on the end face of the horizontal portion of the prefabricated unit, this portion does not require joining by concrete casting, and the groove is welded to the steel plate frame. By doing so, it can be easily and firmly joined.
【００２９】[0029]
この発明は以上のように構成されているので、次の効
果を奏する。 コンクリート製円筒貯槽の側壁を構成する上下各プレ
ハブユニット水平接合部の水平開先部には、水平な平滑
面を有する鋼板枠を設けているので、その平滑面の水平
な鋼板枠上に上部のプレハブユニットを載せて積み重ね
組立てすることがきわめて容易であり、さらに鋼板枠上
に載せられた上部のプレハブユニットは水平な鋼板枠の
平滑面上を摩擦抵抗少なくして水平移動させることが従
来に比べてきわめて簡単にできるため下部のプレハブユ
ニットとの位置合わせ等が容易であり、据付組立て施工
の容易なプレハブコンクリート貯槽とすることができ
る。The present invention is configured as described above, and has the following effects. A steel plate frame having a horizontal smooth surface is provided at the horizontal groove of each of the horizontal joints of the upper and lower prefabricated units constituting the side wall of the concrete cylindrical storage tank. It is extremely easy to mount and assemble the prefabricated units on top of each other, and the upper prefabricated unit mounted on the steel plate frame can be moved horizontally with less frictional resistance on the smooth surface of the horizontal steel plate frame than before. Since it is extremely simple, it can be easily aligned with the lower prefabricated unit, and can be a prefabricated concrete storage tank that can be easily installed and assembled.
【００３０】 また、コンクリート製円筒貯槽の側壁を構成する左右
各プレハブユニット垂直接合部の垂直開先部には、凸状
段差形状の延出した突状部を設けているので、凸状段差
のない面一端面の従来形状における両端部面による端接
面接合障害には煩わせられることなくその突状部を突き
合わせて簡単に左右各プレハブユニットを周方向に沿っ
て配列配置させることができ、さらに左右各プレハブユ
ニット端部の厚さが異なること等で垂直接合部に万一局
部的な目違いが生じようとしても、突状部相互を突き合
わせて形成される開先部空間に充填打設するコンクリー
トモルタルによってその局部的な目違い状況を緩和する
ことができるため、組立て施工が容易で、局部変形抑制
効果に優れたプレハブコンクリート貯槽とすることがで
きる。Further, since the vertical groove portion of each of the right and left prefabricated unit vertical joints constituting the side wall of the concrete cylindrical storage tank is provided with a protruding projecting portion having a convex step shape, the convex step is formed. It is possible to easily arrange the left and right prefabricated units along the circumferential direction by abutting the protruding portions without bothering the end contact surface joining failure due to both end surfaces in the conventional shape of one end surface, Furthermore, even if a local misalignment is expected to occur in the vertical joint due to the difference in thickness of the left and right prefabricated unit ends, filling and filling the groove space formed by abutting the protruding parts. Since the local misalignment can be mitigated by the concrete mortar, a prefabricated concrete storage tank which is easy to assemble and construct and has an excellent local deformation suppressing effect can be obtained.
【００３１】 そして、側壁を構成する各プレハブユニットの水平接
合部は溶着溶接結合し、かつ垂直接合部はコンクリート
モルタルを充填打設結合してなるコンクリート製円筒貯
槽は、水平接合部に比べて貯蔵物による応力発生が大き
な垂直接合部をコンクリートモルタルの充填打設で結合
し、水平接合部は接合作業容易な溶着溶接で結合するの
で、結合部全てをコンクリートモルタル充填打設して結
合する貯槽に比べてその結合作業は容易で建設期間を大
幅に短縮でき、加えて組立てたプレハブユニット全体を
緊張結合するテンション材の結合力作用が加味されるこ
とによって、結合部全てを溶着溶接で結合する貯槽に比
べて水平接合部と垂直接合部の結合部強度バランス機能
に優れたプレハブコンクリート貯槽とすることができ
る。The concrete cylindrical storage tank in which the horizontal joints of the prefabricated units constituting the side walls are welded and joined and the vertical joints are filled with concrete mortar and joined together is stored in comparison with the horizontal joints. The vertical joints that generate large stress due to objects are joined by filling and casting concrete mortar, and the horizontal joints are joined by welding welding that facilitates joining work, so all joints are filled with concrete mortar and poured into a storage tank In comparison, the joining work is easier and the construction period can be greatly reduced.In addition, a tank that joins all the joints by welding by taking into account the joining force action of the tension material that tensions and joins the assembled prefabricated unit as a whole As a result, it is possible to provide a prefabricated concrete storage tank having an excellent balance function of the joint strength between the horizontal joint and the vertical joint.
【００３２】 また、上記フーチング部ユニットを、底版外周部にあ
らかじめストレスを導入したプレテンション材を埋設し
てなるプレストレスト構造体とするプレハブコンクリー
ト貯槽にあっては、強度を増すための組立現場でのテン
ション材緊張力調整がより簡単となり、かつ貯蔵物によ
る大きな応力発生に対し、より適合させやすいプレハブ
コンクリート貯槽にすることができる。Further, in the case of a prefabricated concrete storage tank in which the footing unit is a prestressed structure in which a pretension material in which stress has been introduced in advance is buried in the outer periphery of the bottom slab, an assembly site for increasing strength is used. A prefabricated concrete storage tank can be obtained in which the tension of the tension material can be more easily adjusted, and which can be more easily adapted to the generation of a large stress due to the stored material.
第１図は、コンクリート外槽を有する低温二重殻タンク
の部分断面図である。また、第２図から第４図はこの発
明に係るコンクリート側壁プレハブユニットを示し、第
２図はそのフーチング部斜視説明図、第３図はその胴体
部斜視説明図、第４図はその胴上部の斜視説明図、また
第５図は、フーチング部側端面説明図である。 また、第６図は、この発明に係るプレハブユニットの一
実施例を示す端面、つまり水平開先部と垂直開先部を示
す一部を欠除した斜視説明図、第７図は、矩形凸状開先
を有する垂直接合部の水平断面説明図、第８図は、台形
凸状開先を有する垂直接合部の水平断面説明図、第９図
は、鋼板枠を設けた開先を有する水平接合部の垂直断面
説明図である。FIG. 1 is a partial sectional view of a low-temperature double-shell tank having an outer concrete tank. 2 to 4 show a concrete side wall prefabricated unit according to the present invention, FIG. 2 is a perspective explanatory view of the footing part, FIG. 3 is a perspective explanatory view of the body part, and FIG. FIG. 5 is an explanatory view of an end face on a footing portion side. FIG. 6 is an explanatory perspective view of the prefabricated unit according to an embodiment of the present invention, in which an end face, that is, a part showing a horizontal groove portion and a vertical groove portion is omitted, and FIG. FIG. 8 is a horizontal cross-sectional view of a vertical joint having a trapezoidal convex groove, and FIG. 9 is a horizontal cross-sectional view of a vertical joint having a trapezoidal convex groove. It is a vertical section explanatory view of a joining part.
４……フーチング部、５……胴体部 ６……胴上部、10……水平開先部 10A……鋼板枠、11……垂直開先部 11A……突状部、12……プレテンション材 16……コンクリートモルタル、17……シールメタル 18……外側水平溶着部、19……内側水平溶着部 4 Footing part, 5 Body part 6 Body upper part, 10 Horizontal groove part 10A Steel plate frame, 11 Vertical groove part 11A Projecting part, 12 Pretension material 16… concrete mortar, 17… seal metal 18… outer horizontal welded part, 19… inner horizontal welded part
Claims (2)
プレハブユニットを、底版外周部の底壁と側壁下部とを
剛結一体構造にしたフーチング部と、該フーチング部の
上に積み重ね組立てる側壁中間直胴部の胴体部と、該胴
体部の上に積み重ね組立てる側壁上端部の胴上部にて分
割形成し、該組立てたプレハブユニット全体をテンショ
ン材で緊張結合するプレハブコンクリート貯槽であっ
て、上記プレハブユニットを積み重ねて組立てる際に面
接合するフーチング部と胴体部との間および胴体部と胴
上部との間の各水平接合部は、該上下接合面に水平な平
滑面を有する鋼板枠を設けた水平開先部に形成し、かつ
組立てる際に接合する左右横方向のフーチング部ユニッ
ト同士の間、胴体部ユニット同士の間および胴上部ユニ
ット同士の間の各垂直接合部は、該相互接合部に突状部
を延出して設けた凸状段差形状の垂直開先部に形成する
とともに、上記各水平接合部は鋼板枠相互の内外両端縁
を溶着溶接して結合し、かつ上記各垂直接合部は突状部
相互を突き合わせて形成される開先部空間にコンクリー
トモルタルを充填打設して結合することを特徴とするプ
レハブコンクリート貯槽。A prefabricated unit constituting a side wall of a concrete cylindrical storage tank is provided with a footing portion in which a bottom wall of an outer peripheral portion of a bottom slab and a lower portion of the side wall are rigidly integrated with each other, and a side wall intermediate portion which is stacked and assembled on the footing portion. A prefabricated concrete tank formed by dividing a body portion of a body portion and a body upper portion of an upper end portion of a side wall to be stacked and assembled on the body portion, and tension-joining the entire assembled prefabricated unit with a tension material. The horizontal joints between the footing part and the body part and the body part and the upper part of the body that are surface-joined when stacked and assembled are horizontally provided with a steel plate frame having a horizontal smooth surface on the upper and lower joint surfaces. Each vertical section between the left and right lateral footing section units, between the body section units, and between the upper body units that are formed on the groove and joined during assembly. The joining portion is formed on a vertical groove portion having a convex stepped shape provided by extending a protruding portion to the mutual joining portion, and the horizontal joining portions are welded by welding both inner and outer end edges of the steel plate frame. A prefabricated concrete storage tank, wherein the vertical joints are connected to each other by filling concrete mortar into a groove space formed by abutting the projecting portions with each other.
底版外周部にあらかじめストレスを導入したプレテンシ
ョン材を埋設してなるプレストレスト構造体とすること
を特徴とする請求項１記載のプレハブコンクリート貯
槽。2. The prefabricated unit of the footing unit includes:
2. The prefabricated concrete storage tank according to claim 1, wherein the prestressed structure is a prestressed structure in which a pretension material in which stress has been introduced in advance is buried in the outer periphery of the bottom slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02228234A JP3111282B2 (en) | 1990-08-31 | 1990-08-31 | Prefabricated concrete storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02228234A JP3111282B2 (en) | 1990-08-31 | 1990-08-31 | Prefabricated concrete storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04113099A JPH04113099A (en) | 1992-04-14 |
| JP3111282B2 true JP3111282B2 (en) | 2000-11-20 |
Family
ID=16873270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02228234A Expired - Fee Related JP3111282B2 (en) | 1990-08-31 | 1990-08-31 | Prefabricated concrete storage tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3111282B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2320121A3 (en) * | 2009-11-05 | 2017-05-31 | Korea Gas Corporation | Unit-wall structure for liquefied gas storage tank on land |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0661794U (en) * | 1993-02-02 | 1994-08-30 | 石川島播磨重工業株式会社 | Cooling structure between the inside and outside of the low temperature tank |
| JP2005247324A (en) * | 2004-03-01 | 2005-09-15 | Ohbayashi Corp | Low-temperature pc tank, and method for constructing and using the same |
| WO2005113920A2 (en) | 2004-05-20 | 2005-12-01 | Exxonmobil Upstream Research Company | Lng containment system and method of assembling lng containment system |
| US20110283638A1 (en) * | 2008-12-23 | 2011-11-24 | Shockley Lestle R | Ring Beam and Method for Constructing the Same |
| KR100964824B1 (en) * | 2009-11-05 | 2010-06-23 | 한국가스공사 | Method for building a liquefied gas storage tank |
| JP6008267B2 (en) * | 2011-08-03 | 2016-10-19 | 株式会社石井鐵工所 | Steel tank prefabricated concrete breakwater |
-
1990
- 1990-08-31 JP JP02228234A patent/JP3111282B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2320121A3 (en) * | 2009-11-05 | 2017-05-31 | Korea Gas Corporation | Unit-wall structure for liquefied gas storage tank on land |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04113099A (en) | 1992-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100648376B1 (en) | Joint of steel concrete column and horizontal member, construction method thereof | |
| JP3111282B2 (en) | Prefabricated concrete storage tank | |
| JP2000170285A (en) | Connecting method for steel sheet concrete structural wall and junction structure | |
| JP7411749B2 (en) | How to construct a concrete building | |
| JP2008266902A (en) | Wall unit and earthquake-resistant wall | |
| JPH04261934A (en) | Building frame construction method using form member made of pre-cast concrete | |
| JPH0480444A (en) | Connection unit of reinforced concrete pole and steel framed beam | |
| JP7200048B2 (en) | pile foundation structure | |
| JPH08232337A (en) | Method for constructing composite semi-pc panel and wall body or floor panel | |
| JP3852161B2 (en) | Earthquake-resistant wall expansion method for existing buildings, earthquake-resistant walls to be added to existing buildings | |
| JPH06331776A (en) | Reactor vessel made of steel plate concrete | |
| JPH0827929A (en) | Construction method of wall type src structure | |
| JPH07139054A (en) | Joining method for precast concrete wall plate | |
| KR102586788B1 (en) | Ring column with double-ring structure | |
| JP2001342711A (en) | Columnar structure and its execution method and joint structure of steel pipe | |
| JP7138542B2 (en) | Concrete beam structure | |
| JPH04143338A (en) | Building method of damping construction pillar with placing formwork | |
| JP2513102B2 (en) | Steel plate reinforced concrete reactor containment vessel and its manufacturing method | |
| JPH0762740A (en) | Joint method for precast steel framed reinforced concrete construction pillar and beam | |
| JPH04330133A (en) | Column and beam of concrete filled steel pipe and joining structure for them | |
| JPH01287336A (en) | Steel frame reinforced concrete lamination construction | |
| JPH08232338A (en) | Method for constructing structure | |
| JPH08209831A (en) | Compound ultra-light floor board and manufacture thereof | |
| JPH0746154B2 (en) | Structure of containment vessel wall | |
| JP2022012548A (en) | Precast concrete column structure, and construction method of the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070922 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080922 Year of fee payment: 8 |
|
| LAPS | Cancellation because of no payment of annual fees |