JP3215059B2 - Construction method of tower-like structure roof - Google Patents
Construction method of tower-like structure roofInfo
- Publication number
- JP3215059B2 JP3215059B2 JP30022696A JP30022696A JP3215059B2 JP 3215059 B2 JP3215059 B2 JP 3215059B2 JP 30022696 A JP30022696 A JP 30022696A JP 30022696 A JP30022696 A JP 30022696A JP 3215059 B2 JP3215059 B2 JP 3215059B2
- Authority
- JP
- Japan
- Prior art keywords
- roof
- roof structure
- lift
- tower
- ring
- 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
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、石炭や穀物など
を貯蔵するサイロ等の塔体の上端部に屋根を有する塔状
構造物の屋根の構築工法であり、特に大径間のサイロ屋
根等に適用される塔状構造物屋根の構築工法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a roof of a tower-like structure having a roof at an upper end portion of a tower such as a silo for storing coal, grains, etc., and particularly a large-diameter silo roof. The present invention relates to a method for constructing a tower-like structure roof applied to (1).
【０００２】[0002]
【従来技術】サイロなどの塔状構造物の構築方法とし
て、実公平１−２８１８６号公報に開示されているよう
に、セルフクライミング装置を用いた建方工法がある。
この工法では、サイロの既施工部分に反力をとって自昇
可能なセルフクライミング装置に、サイロ屋根を構成す
るトップスラブを予め取り付けておき、筒状のサイロ本
体の構築に伴って上昇するセルフクライミング装置を利
用してトップスラブをリフトアップしていき、構築の完
了したサイロ本体の上端部にトップスラブを固定してい
る。2. Description of the Related Art As a method of constructing a tower-like structure such as a silo, there is a construction method using a self-climbing device, as disclosed in Japanese Utility Model Publication No. 1-28686.
In this method, the top slab that constitutes the silo roof is installed in advance on a self-climbing device that can self-elevate by taking a reaction force to the already-installed part of the silo, and the self-climbing device that rises with the construction of the cylindrical silo body The top slab is lifted up using a climbing device, and the top slab is fixed to the upper end of the completed silo body.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前述の
ような従来の建方工法では、屋根全体を構築途中のサイ
ロ本体の既施工部分で支持しながら、サイロ本体の構築
と同時に徐々にリフトアップするため、屋根が大きく重
い場合には、施工中の屋根の支持状態が、自重はもとよ
り、風荷重、地震荷重に対して非常に不安定な状態とな
り、屋根を安全に支持することが困難となる。However, in the conventional construction method as described above, the entire roof is gradually lifted up simultaneously with the construction of the silo body while the entire roof is supported by the already-installed portion of the silo body being constructed. Therefore, if the roof is large and heavy, the support state of the roof during construction will be very unstable against wind load and seismic load as well as its own weight, making it difficult to safely support the roof .
【０００４】このような問題点を解消すべく、本発明者
らは、屋根が大きく重い場合にも、安全に、確実に、屋
根を構築することができる搭状構造物の構築工法を開発
し、既に出願している（特願平８−２３４２０７号）。
この構築工法では、サイロ本体の上端部にリング状の屋
根構造体外周部を組立てると共に、この上部および下部
にそれぞれリフトアップ設備のための支持構台とリフト
アップ反力を処理するための補強構造体を設け、リフト
アップ設備により屋根構造体中央部を所定高さまでリフ
トアップし、前記屋根構造体外周部に固定している。[0004] In order to solve such a problem, the present inventors have developed a construction method of a board-like structure that can safely and reliably construct a roof even when the roof is large and heavy. (Japanese Patent Application No. 8-234207).
In this construction method, a ring-shaped roof structure outer peripheral portion is assembled on the upper end of the silo body, and a supporting gantry for lift-up equipment and a reinforcing structure for processing lift-up reaction force are respectively provided on the upper and lower portions. And the center of the roof structure is lifted up to a predetermined height by a lift-up facility, and is fixed to the outer periphery of the roof structure.
【０００５】このような構築工法であれば、地上で組立
てた屋根構造体中央部のみを一気にリフトアップさせる
ため、屋根が大きく重い場合でも安全確実に屋根を構築
することができ、また屋根構造体の組立、仕上げ工事な
どを殆ど地上において行うことができ、安全性をより向
上させることができるが、リング状の屋根構造体外周部
をリフトアップ設備の支持構造体として利用するため、
サイロ本体の上で組立てる屋根構造体外周部が大きくな
り、またこの屋根構造体外周部の下部に補強構造体を必
要とするなどから、作業性が若干劣り、そのため、より
作業性の優れた構築工法が望まれている。According to such a construction method, since only the central portion of the roof structure assembled on the ground is lifted up at a stretch, the roof can be safely and reliably constructed even when the roof is large and heavy. Almost assembling, finishing work, etc. can be performed on the ground, and safety can be further improved, but since the outer periphery of the ring-shaped roof structure is used as a support structure for lift-up equipment,
The workability is slightly inferior because the outer periphery of the roof structure to be assembled on the silo body becomes larger, and a reinforcement structure is required at the lower part of the outer periphery of the roof structure. A construction method is desired.
【０００６】この発明は、このような要望に応えるべく
なされたものであり、その目的は、屋根が大きく重い場
合にも、安全に、確実に、屋根を構築することができる
と共に、作業性に優れ、工期の短縮およびコストの低減
を図ることのできる搭状構造物屋根の構築工法を提供す
ることにある。[0006] The present invention has been made to meet such a demand, and an object of the present invention is to provide a safe and reliable construction of a roof even when the roof is large and heavy, and to improve workability. It is an object of the present invention to provide a method for constructing a roof of a tower-like structure, which is excellent and can shorten the construction period and reduce the cost.
【０００７】[0007]
【課題を解決するための手段】この発明に係る塔状構造
物屋根の構築工法は、塔本体の上端部に屋根構造体を有
する塔状構造物（サイロなど）を構築するに際し、塔本
体の下部を構築した後、この塔本体下部の中央部に屋根
構造体中央部を組立て、この屋根構造体中央部の工事と
並行して塔本体の構築を行い（スライディングフォーム
工法など）、この塔本体の工事が完了すると、塔本体の
上端部にリング状の屋根構造体外周部を組立てると共
に、その外周部リング材を塔本体の上端部に固定し、こ
の屋根構造体外周部の上方に、内側リング材と外側リン
グ材を連結材で連結してなるリング状の仮設構造体を組
立てて束材（必要に応じて束材と補強斜材など）により
前記屋根構造体外周部の外周部リング材に支持させ、こ
のリング状の仮設構造体にはリフトアップ設備のための
支持構台を設け、リフトアップ設備（ベアロックジャッ
キと吊りロッドによるジャッキアップ方式、あるいはウ
インチとワイヤロープによる方式など）の作動により屋
根構造体中央部を引き上げ、所定高さまでリフトアップ
した屋根構造体中央部を前記屋根構造体外周部に固定す
ることを特徴とする。According to the construction method of a tower-like structure roof according to the present invention, a tower-like structure (such as a silo) having a roof structure at an upper end portion of the tower body is constructed. After constructing the lower part, assemble the center of the roof structure at the center of the lower part of the tower body, and construct the tower body in parallel with the construction of the center of the roof structure (sliding form method, etc.). When the work is complete, the assembled annular roof structure outer peripheral portion to the upper portion of the column body, and fixing the outer periphery ring member to the upper end of the column body, above the roof structure outer peripheral portion, the inner Ring material and outer phosphorus
And a ring-shaped temporary structure formed by connecting the connecting members with a connecting member, and supported by a bundle member ( a bundle member and a reinforcing diagonal member if necessary ) on an outer peripheral ring member of the outer peripheral portion of the roof structure, This ring-shaped temporary structure is provided with a supporting gantry for lift-up equipment, and the roof structure is activated by the operation of lift-up equipment (a jack-up method using a bare lock jack and a hanging rod, or a method using a winch and a wire rope). The central portion is lifted up, and the central portion of the roof structure lifted up to a predetermined height is fixed to the outer peripheral portion of the roof structure.
【０００８】また、リング状の仮設構造体と塔本体の地
上側部分（塔本体の下部、あるいは地上に設置した張力
調整装置など）とを、該仮設構造体に設けられたリフト
アップ設備の支持構台位置においてバックテンションケ
ーブルで連結し、前記仮設構造体のリフトアップ時の変
形を調整できるようにする。[0008] Further, the ring-shaped temporary structure and the above-ground portion of the tower body (the lower part of the tower body or a tension adjusting device installed on the ground) are supported by lift-up equipment provided in the temporary structure. At the gantry position, the temporary structure is connected by a back tension cable so that the deformation of the temporary structure during lift-up can be adjusted.
【０００９】以上のような構成において、屋根構造体を
屋根構造体中央部と屋根構造体外周部に分割し、塔本体
を構築した後に、塔本体の上端部に屋根構造体外周部を
組立て、この屋根構造体外周部の上方に組立てた仮設構
造体をリフトアップの支持構造体として用い、地上で組
立てた屋根構造体中央部のみを一気にリフトアップさせ
るため、屋根が大きく重い場合でも、安全確実に屋根を
構築することができる。また、屋根構造体の大部分を占
める屋根構造体中央部の組立、仕上げ工事などを地上に
おいて行うことができ、安全性をより向上させることが
できる。さらに、リフトアップ荷重は、仮設構造体で受
けるため、サイロ本体上部で組立てるリング状の屋根構
造体外周部は、必要最小限のリング幅ですみ、また補強
構造体を必要としないため、作業性を向上させることが
できる。リング状の屋根構造体外周部は変形することが
なく、またバックテンションケーブルによりリフトアッ
プ時の仮設構造体の変形を防止することができ、屋根構
造体中央部と屋根構造体外周部の接合を容易に行うこと
ができる。In the above construction, the roof structure is divided into a center portion of the roof structure and an outer peripheral portion of the roof structure, and a tower body is constructed. Then, an outer peripheral portion of the roof structure is assembled on an upper end portion of the tower body. The temporary structure assembled above the outer periphery of the roof structure is used as a support structure for lift-up, and only the central part of the roof structure assembled on the ground is lifted up at a stretch, ensuring safety even when the roof is large and heavy. The roof can be built. In addition, assembling, finishing work, and the like of the central portion of the roof structure, which occupies most of the roof structure, can be performed on the ground, and safety can be further improved. Furthermore, since the lift-up load is received by the temporary structure, the outer periphery of the ring-shaped roof structure assembled on the upper part of the silo requires only the minimum ring width, and there is no need for a reinforcing structure. Can be improved. The outer periphery of the ring-shaped roof structure does not deform, and the back tension cable prevents deformation of the temporary structure at the time of lift-up. It can be done easily.
【００１０】[0010]
【発明の実施の態様】以下、この発明を図示する一実施
例に基いて説明する。これは、石炭等を貯蔵する直径が
約５０ｍのサイロに適用した例である。図１〜図４に、
この発明に係る構築工法を適用したサイロを示し、図５
〜図８に、この発明に係る構築工法を工程順に示す。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. This is an example applied to a silo having a diameter of about 50 m for storing coal or the like. 1 to 4,
FIG. 5 shows a silo to which the construction method according to the present invention is applied, and FIG.
8 to 8 show the construction method according to the present invention in the order of steps.
【００１１】図１〜図４において、サイロ１は、主とし
て、円筒状のコンクリート製のサイロ本体２と、鉄骨製
の屋根構造体３から構成されている。このようなサイロ
１において、本発明では、屋根構造体３を、平面視で円
形の屋根構造体中央部３Ａと、平面視でリング状で必要
最小限のリング幅Ｌの屋根構造体外周部３Ｂに分割し、
屋根構造体中央部３Ａを地上で組立て、一方、構築の完
了したサイロ本体２の上端部に屋根構造体外周部３Ｂを
組立て、この屋根構造体外周部３Ｂの上方にリフトアッ
プのためのリング状の仮設構造体４を構築し、この仮設
構造体４の支持構台５に設置したリフトアップ設備６に
より屋根構造体中央部３Ａを一気にリフトアップさせ
る。リフトアップ反力はバックテンションケーブル７に
より処理することもできる。1 to 4, a silo 1 mainly comprises a cylindrical silo body 2 made of concrete and a roof structure 3 made of steel. In such a silo 1, in the present invention, the roof structure 3 includes a roof structure central portion 3A that is circular in plan view and a roof structure outer peripheral portion 3B that has a ring shape and has a minimum required ring width L in plan view. Divided into
The roof structure central portion 3A is assembled on the ground, while the roof structure outer peripheral portion 3B is assembled on the upper end portion of the completed silo main body 2, and a ring shape for lifting up the roof structure outer peripheral portion 3B. The temporary structure 4 is constructed, and the central portion 3A of the roof structure is lifted up at once by the lift-up equipment 6 installed on the support gantry 5 of the temporary structure 4. The lift-up reaction force can also be handled by the back tension cable 7.
【００１２】屋根構造体３は、図２（ａ）に示すよう
に、主に、平面視で放射状に配設される多数の斜材１０
と、半径方向に間隔をおいて多数配置され各斜材１０を
つなぐリング材１１からなり、リング状の屋根構造体外
周部３Ｂは、その平面視のリング幅Ｌをできるだけ小さ
くして、外周部リング材１１Ｂと、接合端部を鉛直に切
断した部分斜材１０Ｂなどから構成する（図４参照）。
リング幅Ｌは、後述するようにリフトアップさせる円形
の屋根構造体中央部３Ａの外周部がサイロ本体２の円筒
部２Ｂの内周面に当たることのないように、円筒部２Ｂ
の内周面から塔体中心に向けて若干突出させればよい。As shown in FIG. 2A, the roof structure 3 mainly includes a large number of diagonal members 10 arranged radially in a plan view.
The ring-shaped roof structure outer peripheral portion 3B has a ring width L in a plan view as small as possible. It is composed of a ring material 11B and a partial oblique material 10B whose joining end is cut vertically (see FIG. 4).
The ring width L is adjusted so that the outer peripheral portion of the central portion 3A of the circular roof structure to be lifted up does not hit the inner peripheral surface of the cylindrical portion 2B of the silo main body 2 as described later.
May be slightly protruded from the inner peripheral surface toward the center of the tower.
【００１３】リング状の仮設構造体４は、図２（ｂ）に
示すように、内側リング材１２と、外側リング材１３
と、両者をつなぐ連結材１４から構成し、この仮設構造
体４にリフトアップ設備６の支持構台５を固定する。こ
の支持構台５は、リング状の仮設構造体４の円周方向に
間隔をおいて多数配設し、内側リング材１２と外側リン
グ材１３とを連結し、かつ外側リング材１３から塔体中
心に向かって所定の距離だけ突出するようにする（図４
参照）。As shown in FIG. 2B, the ring-shaped temporary structure 4 includes an inner ring member 12 and an outer ring member 13.
And a connecting member 14 connecting the two, and the supporting gantry 5 of the lift-up facility 6 is fixed to the temporary structure 4. The support gantry 5 is provided in large numbers at intervals in the circumferential direction of the ring-shaped temporary structure 4, connects the inner ring member 12 and the outer ring member 13, and connects the outer ring member 13 to the center of the tower body. To a predetermined distance (see FIG. 4).
reference).
【００１４】このような仮設構造体４は、図４に示すよ
うに、支持構台５の位置において束材１５により支持
し、補強斜材１６で補強する。束材１５は、下部を屋根
構造体外周部３Ｂの外周部リング材１１Ｂに固定して鉛
直に立ち上げ、上部を内側リング材１２の位置で支持構
台５に固定し、サイロ本体２の円筒部２Ｂの延長線上に
位置してリフトアップ時の荷重を円筒部２Ｂに円滑に伝
達できるようにする。補強斜材１６は、上部を支持構台
５の外側下面に固定し、下部を束材１５の基部に固定す
る。補強斜材１６は、必要に応じて支持構台５のリフト
アップ設備側にも設ける。As shown in FIG. 4, such a temporary structure 4 is supported by a bundle 15 at the position of the support gantry 5 and reinforced by a reinforcing diagonal member 16. Tabazai 15, raised vertically by fixing the lower to the outer periphery ring member 11 B of the roof structure outer peripheral portion 3B, secure the top to the support gantry 5 in a position of the inner ring member 12, a cylindrical silo body 2 It is located on an extension of the portion 2B so that the load at the time of lifting up can be smoothly transmitted to the cylindrical portion 2B. The upper part of the reinforcing diagonal member 16 is fixed to the outer lower surface of the support gantry 5, and the lower part is fixed to the base of the bundle 15. The reinforcing diagonal member 16 is provided on the lift-up facility side of the support gantry 5 as needed.
【００１５】リフトアップ設備６は、図４に示すよう
に、支持構台５のサイロ中心側の端部上に設置される複
数（この実施例では２台）のベアロックジャッキ（ジャ
ッキアップダウン後にも油圧を保持して負荷を支持可能
なジャッキ）２０と、このジャッキ２０の昇降部材２１
と屋根構造体中央部３Ａの周縁部における節点とを連結
する吊りロッド２２からなる。吊りロッド２２は、Ｈ形
鋼のウェブにピン孔２３がジャッキストロークに対応し
た間隔で穿設された所謂ステップバーであり、ピン孔２
３にジャッキ装置の上下に設けたピンを交互に差し込
み、上部ピンを差し込んだ状態で吊りロッド２２を吊り
上げてリフトアップさせ、下部ピンを差し込んだ後、上
部ピンを引き抜いた状態でジャッキを下降させることに
より、所謂尺取り虫式にステップバーを引き上げる。As shown in FIG. 4, the lift-up equipment 6 includes a plurality (two in this embodiment) of bear lock jacks installed on the end of the support gantry 5 at the center of the silo (even after the jack-up / down operation). A jack 20 capable of supporting a load while holding hydraulic pressure, and an elevating member 21 of the jack 20.
And a suspension rod 22 connecting the roof structure center portion 3A with a node at the peripheral edge thereof. The suspension rod 22 is a so-called step bar in which pin holes 23 are formed in an H-section steel web at intervals corresponding to jack strokes.
The pins provided above and below the jack device are alternately inserted into 3, the lifting rod 22 is lifted up with the upper pin inserted, the lower pin is inserted, and then the jack is lowered with the upper pin pulled out. Thereby, the step bar is pulled up in a so-called scale insect type.
【００１６】このようなリフトアップ設備６は、リフト
アップする屋根構造体中央部３Ａの重量に応じて多数配
置する。この実施例では、重量が１０００トンを超える
ため、リフトアップ設備６を１２台設置している（図２
参照）。また、吊りロッド２２と屋根構造体中央部３Ａ
との連結点には、ロードセルを介在させ、各リフトアッ
プ設備６に作用するリフトアップ荷重を検出しながら、
各ベアロックジャッキ２０を制御して屋根構造体中央部
３Ａ全体が水平状態でリフトアップされるようにする。A large number of such lift-up facilities 6 are arranged in accordance with the weight of the roof structure central portion 3A to be lifted up. In this embodiment, since the weight exceeds 1000 tons, twelve lift-up facilities 6 are installed (FIG. 2).
reference). In addition, the suspension rod 22 and the roof structure central portion 3A
A load cell is interposed at the connection point between the lift-up equipment 6 and the lift-up load acting on each lift-up equipment 6 while detecting the lift-up load.
Each of the bare lock jacks 20 is controlled so that the entire roof structure central portion 3A is lifted up in a horizontal state.
【００１７】なお、支持構台５のリフトアップ設備６側
は、図２（ｂ）に示すように、水平補強材２４により水
平方向の補強を行うのが好ましい。また、吊りロッド２
２の下部には、図３に示すように、天秤式の連結具２５
の中間部をピンを介して取付け、両端部を屋根構造体中
央部３Ａにピンを介して接続し、吊りロッド２２に軸力
のみが作用し、リフトアップ設備６に曲げが作用しない
ようにしている。The lift-up facility 6 side of the support gantry 5 is preferably reinforced in the horizontal direction by a horizontal reinforcing member 24 as shown in FIG. In addition, hanging rod 2
As shown in FIG. 3, a balance-type connecting tool 25 is
Are attached via pins, and both ends are connected to the center part 3A of the roof structure via pins, so that only an axial force acts on the suspension rod 22 and no bending acts on the lift-up equipment 6. I have.
【００１８】バックテンションケーブル７は、リフトア
ップ設備６に対応させて多数配設し、リフトアップ時の
仮設構造体４の変形を調整する。このバックテンション
ケーブル７は、上端を仮設構造体４の外側リング材１３
の位置で支持構台５に固定し、下端をサイロ本体２の円
筒部２Ｂの下部に固定し、ターンバックルなどの張力調
整装置８により張力を導入可能としている。あるいは、
バックテンションケーブル７の下端を地上に設けたウイ
ンチなどの張力調整装置８に接続するようにしてもよ
い。A large number of back tension cables 7 are provided corresponding to the lift-up equipment 6 to adjust the deformation of the temporary structure 4 during lift-up. The upper end of the back tension cable 7 is the outer ring member 13 of the temporary structure 4.
The lower end is fixed to the lower part of the cylindrical portion 2B of the silo main body 2, and a tension can be introduced by a tension adjusting device 8 such as a turnbuckle. Or,
The lower end of the back tension cable 7 may be connected to a tension adjusting device 8 such as a winch provided on the ground.
【００１９】以上のような構成において、次に示すよう
な手順でサイロ１を構築する。In the above configuration, the silo 1 is constructed according to the following procedure.
【００２０】(1) 図５に示すように、サイロ本体２のホ
ッパー・サイロ本体下部２Ａを構築し、この下部工事が
完了すると、ホッパー・サイロ本体下部２Ａの上に仮設
構台５０を組み、この仮設構台５０の上に屋根構造体中
央部３Ａを組立てる。この組立てはクレーン５１を用い
て行い、この建方が完了すると、外周部分のサポート以
外の仮設材をホッパー・サイロ本体下部２Ａの外部に解
体搬出する。(1) As shown in FIG. 5, a lower part 2A of the hopper / silo main body of the silo main body 2 is constructed, and when the lower construction is completed, a temporary gantry 50 is assembled on the lower part 2A of the hopper / silo main body. The central part 3A of the roof structure is assembled on the temporary gantry 50. This assembling is performed using the crane 51, and when this construction is completed, the temporary material other than the support of the outer peripheral portion is dismantled and carried out to the outside of the lower portion 2A of the hopper / silo main body.
【００２１】(2) 屋根構造体中央部３Ａの屋根仕上げ工
事および設備工事を行い、これと並行してサイロ本体２
の円筒部２Ｂをスライディングフォーム工法等を用いて
構築する。前記屋根仕上げ工事等は、円筒部２Ｂの完成
までに終了させればよい。(2) Roof finishing work and equipment work for the center part 3A of the roof structure are performed.
Is constructed using a sliding foam method or the like. The roof finishing work or the like may be completed before the completion of the cylindrical portion 2B.
【００２２】(3) 図６に示すように、サイロ本体２が完
成すると、クレーン５２を用いてこのサイロ本体２の上
端部に屋根構造体外周部３Ｂを組立てると共に、この屋
根構造体外周部３Ｂに束材１５を立て仮設構造体４を組
立てる。支持構台５にリフトアップ設備６のベアロック
ジャッキ２０を設置し、バックテンションケーブル７を
配設する。(3) As shown in FIG. 6, when the silo main body 2 is completed, a roof structure outer peripheral portion 3B is assembled at the upper end of the silo main body 2 using a crane 52, and the roof structural outer peripheral portion 3B And the temporary structure 4 is assembled. The bear lock jack 20 of the lift-up equipment 6 is installed on the support gantry 5 and the back tension cable 7 is arranged.
【００２３】(4) 図７に示すように、各リフトアップ設
備６の吊りロッド２２の下端を天秤式の連結具２５を介
して屋根構造体中央部３Ａの周縁部における節点に接続
し、ベアロックジャッキ２０により、吊りロッド２２、
即ち屋根構造体中央部３Ａを尺取り虫方式で引き上げ
る。引き上げ速度は１２ｃｍ／ｍｉｎ程度であり、この
リフトアップ工程は計測等の作業を含めて２日程度で行
うことができる。このリフトアップ時には、バックテン
ションケーブル７の張力を調整して仮設構造体４の変形
を調整することもできる。(4) As shown in FIG. 7, the lower end of the suspension rod 22 of each lift-up facility 6 is connected to a node at the peripheral edge of the central portion 3A of the roof structure via a balance-type coupler 25, and With the lock jack 20, the suspension rod 22,
That is, the central portion 3A of the roof structure is pulled up by a scale insect method. The lifting speed is about 12 cm / min, and this lift-up step can be performed in about two days including work such as measurement. During this lift-up, the deformation of the temporary structure 4 can be adjusted by adjusting the tension of the back tension cable 7.
【００２４】(5) 図８に示すように、屋根構造体中央部
３Ａが所定の高さまで達すると、リフトアップを終了さ
せ、図４に示すように、屋根構造体中央部３Ａの外周端
面と屋根構造体外周部３Ｂの内周端面、即ち斜材１０と
部分斜材１０Ｂの鉛直接合端面同士をスプライスプレー
ト１７を介してボルト接合する。(5) As shown in FIG. 8, when the roof structure central portion 3A reaches a predetermined height, the lift-up is terminated, and as shown in FIG. The inner peripheral end surface of the roof structure outer peripheral portion 3B, that is, the vertically joined end surfaces of the diagonal members 10 and the partial diagonal members 10B are bolted together via the splice plate 17.
【００２５】リフトアップ荷重は、仮設構造体４で受
け、屋根構造体外周部３Ｂの外周部リング材１１Ｂを介
してサイロ本体円筒部２Ｂに伝達されるため、屋根構造
体外周部３Ｂは必要最小限のリング幅Ｌの簡単な構造と
することができ、サイロ本体上部での組立作業が容易と
なり、また補強構造体を必要としないため、作業性を向
上させることができる。さらに、屋根構造体外周部３Ｂ
は、リング幅Ｌが小さく、かつその外周部リング材１１
Ｂにリフトアップ荷重がかかるため、変形することはな
く、また各バックテンションケーブル７によりリフトア
ップ時の仮設構造体４の変形が防止され、屋根構造体中
央部３Ａの外周端面と屋根構造体外周部３Ｂの内周端面
との干渉が防止され、屋根構造体中央部３Ａと屋根構造
体外周部３Ｂの接合作業を容易に行うことができる。The lift-up load is received by the temporary structure 4 and transmitted to the silo main body cylindrical portion 2B via the outer ring member 11B of the outer peripheral portion 3B of the roof structure. A simple structure with a minimum ring width L can be achieved, the assembling work on the upper part of the silo main body becomes easy, and the workability can be improved because no reinforcing structure is required. Furthermore, the outer peripheral portion 3B of the roof structure
Means that the ring width L is small and the outer peripheral ring material 11
Since the lift-up load is applied to B, it is not deformed, and the deformation of the temporary structure 4 at the time of lift-up is prevented by each back tension cable 7, and the outer peripheral end face of the roof structure central portion 3A and the outer periphery of the roof structure Interference with the inner peripheral end face of the portion 3B is prevented, and the joining work between the roof structure central portion 3A and the roof structure outer peripheral portion 3B can be easily performed.
【００２６】(6) 次いで、屋根構造体全体をベアロック
ジャッキ２０によりジャッキダウンさせると、屋根構造
体中央部３Ａと屋根構造体外周部３Ｂの定着が完了す
る。(6) Next, when the entire roof structure is jacked down by the bare lock jack 20, fixing of the roof structure center portion 3A and the roof structure outer peripheral portion 3B is completed.
【００２７】以上により、屋根の構築工程が完了し、仮
設構造体４・支持構台５・リフトアップ設備６などの仮
設機器・資材を撤去し、サイロ１の仕上げ工事を行う。As described above, the roof construction process is completed, and the temporary equipment and materials such as the temporary structure 4, the supporting gantry 5, and the lift-up facility 6 are removed, and the silo 1 is finished.
【００２８】なお、以上はサイロについて説明したが、
塔本体の上端部に屋根を有するタンクなどの塔状構造物
にも本発明を適用できることはいうまでもない。また、
大径間のサイロ屋根等に限らず、一般的な規模の塔状構
造物にも適用できることはいうまでもない。さらに、屋
根構造体中央部３Ａのリフトアップ時に屋根構造体中央
部３Ａの端部同士を広がらないようにタイバー等で連結
することも当然考えられる。Although the silo has been described above,
It goes without saying that the present invention can be applied to a tower-like structure such as a tank having a roof at the upper end of the tower body. Also,
It is needless to say that the present invention can be applied not only to a large-diameter silo roof or the like but also to a tower-like structure of a general scale. Further, it is naturally conceivable to connect the ends of the roof structure central portion 3A with tie bars or the like so as not to spread each other when the roof structure central portion 3A is lifted up.
【００２９】[0029]
【発明の効果】この発明は、サイロなどの塔本体の上端
部に屋根を有する塔状構造物を構築するに際し、屋根構
造体を屋根構造体中央部と屋根構造体外周部に分割し、
塔体の底部上に屋根構造体中央部を組立てると共に塔本
体を構築した後に、塔本体の上端部に屋根構造体外周部
を組立て、この屋根構造体外周部の上方に組立てた仮設
構造体をリフトアップの支持構造体として用い、地上で
組立てた屋根構造体中央部のみを一気にリフトアップさ
せるため、屋根が大きく重い場合でも、安全確実に屋根
を構築することができる。また、屋根構造体の組立、仕
上げ工事などを殆ど地上において行うことができ、安全
性をより向上させることができる。さらに、リフトアッ
プ荷重は、仮設構造体で受けるため、サイロ本体上部で
組立てるリング状の屋根構造体外周部は、必要最小限の
リング幅ですみ、補強構造体を必要とせず、また、リン
グ状の屋根構造体外周部は変形することがなく、バック
テンションケーブルによりリフトアップ時の仮設構造体
の変形を防止することもでき、屋根構造体中央部と屋根
構造体外周部の接合を容易に行うことができる。これに
より、作業性を大幅に向上させることができ、工期の短
縮およびコストの低減を図ることができる。According to the present invention, when constructing a tower-like structure having a roof at the upper end of a tower body such as a silo, the roof structure is divided into a roof structure central portion and a roof structure outer peripheral portion,
After assembling the center part of the roof structure on the bottom of the tower body and building the tower body, assembling the outer peripheral part of the roof structure at the upper end part of the tower body and assembling the temporary structure assembled above the outer part of the roof structure It is used as a support structure for lift-up, and only the central part of the roof structure assembled on the ground is lifted up at a stretch. Therefore, even if the roof is large and heavy, the roof can be constructed reliably and securely. Further, the assembling and finishing work of the roof structure can be performed almost on the ground, and the safety can be further improved. Furthermore, since the lift-up load is received by the temporary structure, the outer periphery of the ring-shaped roof structure assembled at the upper part of the silo requires only the minimum required ring width, and no reinforcing structure is required. The outer peripheral portion of the roof structure does not deform, and the back tension cable can also prevent the deformation of the temporary structure at the time of lift-up, so that the central portion of the roof structure and the outer peripheral portion of the roof structure can be easily joined. be able to. As a result, the workability can be greatly improved, and the construction period can be shortened and the cost can be reduced.
【図１】この発明に係る構築工法を適用したサイロを示
す縦断面図である。FIG. 1 is a longitudinal sectional view showing a silo to which a construction method according to the present invention is applied.
【図２】（ａ）は図１のサイロの屋根構造体を示す平面
図、（ｂ）は仮設構造体の平面図である。2A is a plan view showing a roof structure of the silo of FIG. 1, and FIG. 2B is a plan view of a temporary structure.
【図３】図１のサイロの部分断面正面図である。FIG. 3 is a partial sectional front view of the silo of FIG. 1;
【図４】図１のサイロ本体上部におけるリフトアップ装
置部分を示す部分詳細図である。FIG. 4 is a partial detailed view showing a lift-up device in the upper part of the silo main body of FIG. 1;
【図５】この発明に係る構築工法の第１工程を示す縦断
面図である。FIG. 5 is a longitudinal sectional view showing a first step of the construction method according to the present invention.
【図６】この発明に係る構築工法の第２工程を示す縦断
面図である。FIG. 6 is a longitudinal sectional view showing a second step of the construction method according to the present invention.
【図７】この発明に係る構築工法の第３工程を示す縦断
面図である。FIG. 7 is a longitudinal sectional view showing a third step of the construction method according to the present invention.
【図８】この発明に係る構築工法の第４工程を示す縦断
面図である。FIG. 8 is a longitudinal sectional view showing a fourth step of the construction method according to the present invention.
１…サイロ（塔状構造物） ２…サイロ本体 ２Ａ…ホッパー・サイロ本体下部 ２Ｂ…サイロ本体円筒部 ３…屋根構造体 ３Ａ…屋根構造体中央部 ３Ｂ…屋根構造体外周部 ４…仮設構造体 ５…支持構台 ６…リフトアップ設備 ７…バックテンションケーブル ８…張力調整装置 １０…斜材 １１…リング材 １２…内側リング材 １３…外側リング材 １４…連結材 １５…束材 １６…補強斜材 １７…スプライスプレート ２０…ベアロックジャッキ ２１…昇降部材 ２２…吊りロッド（ステップバー） ２３…ピン孔 DESCRIPTION OF SYMBOLS 1 ... Silo (tower-like structure) 2 ... Silo main body 2A ... Hopper silo main body lower part 2B ... Silo main body cylindrical part 3 ... Roof structure 3A ... Roof structure center part 3B ... Roof structure outer peripheral part 4 .... Temporary structure DESCRIPTION OF SYMBOLS 5 ... Support gantry 6 ... Lift-up equipment 7 ... Back tension cable 8 ... Tension adjusting device 10 ... Slanting material 11 ... Ring material 12 ... Inner ring material 13 ... Outer ring material 14 ... Connecting material 15 ... Bundling material 16 ... Reinforced oblique material 17 ... Splice plate 20 ... Bear lock jack 21 ... Elevating member 22 ... Suspension rod (step bar) 23 ... Pin hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 孝 東京都中央区銀座６丁目２番10号 株式 会社巴コーポレーション内 (72)発明者 五十畑 登 東京都江東区豊洲３丁目４番５号 株式 会社巴技研内 (56)参考文献 特開 平７−62925（ＪＰ，Ａ) 特開 昭61−270478（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04H 7/00 - 7/32 E04G 21/14 - 21/16 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Takashi Sato, Inventor 6-2-10 Ginza, Chuo-ku, Tokyo Inside Tomoe Corporation (72) Inventor Noboru Hatata 3-4-5 Toyosu, Koto-ku, Tokyo Stock Company Tomoe Giken (56) References JP-A-7-62925 (JP, A) JP-A-61-270478 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) E04H 7/00 -7/32 E04G 21/14-21/16
Claims (2)
状構造物を構築するに際し、塔本体の下部を構築した
後、この塔本体下部の中央部に屋根構造体中央部を組立
て、この屋根構造体中央部の工事と並行して塔本体の構
築を行い、この塔本体の工事が完了すると、塔本体の上
端部にリング状の屋根構造体外周部を組立てると共に、
その外周部リング材を塔本体の上端部に固定し、この屋
根構造体外周部の上方に、内側リング材と外側リング材
を連結材で連結してなるリング状の仮設構造体を組立て
て束材により前記屋根構造体外周部の外周部リング材に
支持させ、このリング状の仮設構造体にはリフトアップ
設備のための支持構台を設け、リフトアップ設備の作動
により屋根構造体中央部を引き上げ、所定高さまでリフ
トアップした屋根構造体中央部を前記屋根構造体外周部
に固定することを特徴とする塔状構造物屋根の構築工
法。1. When a tower-like structure having a roof structure at the upper end of a tower body is constructed, a lower part of the tower body is constructed, and then a roof structure central part is assembled to a center part of the lower part of the tower body. Constructing the tower body in parallel with the construction of this roof structure center part, when the construction of this tower body is completed, as well as assembling the ring-shaped roof structure outer peripheral part at the upper end of the tower body,
The outer ring material is fixed to the upper end of the tower body, and the inner ring material and the outer ring material are placed above the roof structure outer periphery.
Are assembled with a connecting member to assemble a ring-shaped temporary structure, which is supported by a bundle material on an outer peripheral ring material of an outer peripheral portion of the roof structure, and the ring-shaped temporary structure has a lift-up facility. A tower-shaped structure roof, comprising: providing a support gantry, lifting a central portion of the roof structure by operating a lift-up facility, and fixing the central portion of the roof structure lifted up to a predetermined height to an outer peripheral portion of the roof structure. Construction method.
部分とを、該仮設構造体に設けられたリフトアップ設備
の支持構台位置においてバックテンションケーブルで連
結し、前記仮設構造体のリフトアップ時の変形を調整す
ることを特徴とする請求項１に記載の塔状構造物屋根の
構築工法。2. A ring-shaped temporary structure and a ground-side portion of the tower body are connected by a back tension cable at a support gantry position of a lift-up facility provided on the temporary structure, and the temporary structure is lifted. The method for constructing a roof of a tower-like structure according to claim 1, wherein the deformation at the time of the up is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30022696A JP3215059B2 (en) | 1996-11-12 | 1996-11-12 | Construction method of tower-like structure roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30022696A JP3215059B2 (en) | 1996-11-12 | 1996-11-12 | Construction method of tower-like structure roof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10140872A JPH10140872A (en) | 1998-05-26 |
| JP3215059B2 true JP3215059B2 (en) | 2001-10-02 |
Family
ID=17882243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30022696A Expired - Fee Related JP3215059B2 (en) | 1996-11-12 | 1996-11-12 | Construction method of tower-like structure roof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3215059B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100381792B1 (en) * | 2001-02-26 | 2003-04-26 | 이문구 | Method for constructing cone of silo |
| CN103046788B (en) * | 2012-12-12 | 2015-04-15 | 中国五冶集团有限公司 | Steel funnel of coal blending bin and installation method of traditional steel funnel of coal blending bin |
| CN103485564B (en) * | 2013-10-10 | 2015-11-11 | 安徽中亚钢结构工程有限公司 | A kind of clinker warehouse top base ring support frame structure and construction method thereof |
| CN103556823B (en) * | 2013-10-28 | 2016-04-13 | 山西二建集团有限公司 | The construction method of lamina tecti form bracing system made by silo sliding formwork operating platform |
| CN104164993A (en) * | 2014-07-14 | 2014-11-26 | 河南工业大学 | Horizontal reinforced concrete underground barn |
| CN104973535B (en) * | 2015-05-31 | 2017-09-19 | 天津二十冶建设有限公司 | A kind of packaged type funnel bracket and funnel installation method |
| CN105298196A (en) * | 2015-11-05 | 2016-02-03 | 中国电力工程顾问集团西南电力设计院有限公司 | Integral type circular coal field structure with ring ribs |
| JP6865550B2 (en) * | 2016-09-13 | 2021-04-28 | 大成建設株式会社 | How to build silo roof and silo roof structure |
-
1996
- 1996-11-12 JP JP30022696A patent/JP3215059B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10140872A (en) | 1998-05-26 |
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