JPH08114302A - Boiler installing method and boiler installation structural body - Google Patents
Boiler installing method and boiler installation structural bodyInfo
- Publication number
- JPH08114302A JPH08114302A JP25043894A JP25043894A JPH08114302A JP H08114302 A JPH08114302 A JP H08114302A JP 25043894 A JP25043894 A JP 25043894A JP 25043894 A JP25043894 A JP 25043894A JP H08114302 A JPH08114302 A JP H08114302A
- Authority
- JP
- Japan
- Prior art keywords
- top girder
- boiler
- bracket
- girder
- hoisting
- 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
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、事業用火力発電用ボイ
ラのような大型ボイラにあって、吊り下げ型ボイラのボ
イラ本体をトップ大梁に吊り下げて、トップ大梁をボイ
ラ鉄骨柱の上部に吊り揚げるボイラの据付け技術に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large boiler such as a boiler for commercial thermal power generation, in which a boiler body of a hanging type boiler is hung on a top girder, and the top girder is placed above a boiler steel column. It is related to the installation technology of hoisting boilers.
【０００２】[0002]
【従来の技術】例えば事業用火力発電用に用いられる大
型ボイラでは、図７に示すようにボイラ本体１は伝熱管
２を備えたその上部（以下、天井部３という）をボイラ
鉄骨柱５の最上階６部分で支持されるトップ大梁７に吊
り下げた構造を採用している。図８には図７に示すボイ
ラ本体１の吊り揚げ方法を図７のＣ−Ｃ線の矢視図（た
だし、図８には図７のボイラ鉄骨柱５の最上階６の上に
ジャッキ用仮設架台９が図示されている。）を示したも
のであるが、ボイラ天井部３をトップ大梁７に吊り下げ
た状態で一体化し、これをジャッキ１０とストランド１
１で吊り揚げて、トップ大梁７をボイラ鉄骨柱５側のブ
ラケット１２に図８には図示していないスプライスプレ
ート及びボルト、ナットにより結合する（図１１参
照）。図８はボイラ天井部３を吊り揚げる前と及び吊り
揚げ終了の状態を示したものであり、図９は図８に示す
従来技術に対応したボイラ天井部３の吊り揚げ途中のト
ップ大梁７及びボイラ鉄骨柱５側のブラケット１２周辺
の拡大図である。図９にはボイラ鉄骨柱５の最上階６上
にはジャッキ仮設架台９（上面台９ａと柱台９ｂ、９ｃ
からなる）が設置された状態とジャッキ仮設架台９上に
ジャッキ１０を取り付け、該ジャッキ１０によりトップ
大梁７を吊り揚げる構成が拡大されて図示されている。
なお、ジャッキ１０は図８で示したストランド１１に代
えて図９に示すようにテンションロッド１３を介してト
ップ大梁７を吊り揚げることもできる。2. Description of the Related Art In a large boiler used for commercial thermal power generation, for example, as shown in FIG. 7, a boiler main body 1 is provided with a heat transfer tube 2 at an upper portion (hereinafter referred to as a ceiling portion 3) of a boiler steel column 5. The structure is hung on the top girder 7, which is supported by 6 parts on the top floor. FIG. 8 shows a method of hoisting the boiler body 1 shown in FIG. 7 as seen from the direction of the arrows CC in FIG. 7 (however, in FIG. 8, for the jack on the uppermost floor 6 of the boiler steel column 5 in FIG. 7). Although the temporary mount 9 is shown in the figure), the boiler ceiling 3 is integrated in a state of being suspended from the top girder 7, and this is combined with the jack 10 and the strand 1.
1, and the top girder 7 is coupled to the bracket 12 on the boiler steel column 5 side by a splice plate, bolts and nuts not shown in FIG. 8 (see FIG. 11). FIG. 8 shows a state before hoisting the boiler ceiling part 3 and a state where hoisting is completed, and FIG. 9 shows a top girder 7 during hoisting of the boiler ceiling part 3 corresponding to the conventional technique shown in FIG. It is an enlarged view of the bracket 12 periphery of the boiler steel-frame pillar 5 side. In FIG. 9, on the uppermost floor 6 of the boiler steel frame pillar 5, a jack temporary mount 9 (upper surface mount 9a and pillar mounts 9b and 9c) is installed.
1) is installed, and a configuration in which the jack 10 is mounted on the jack temporary mount 9 and the top girder 7 is lifted by the jack 10 is enlarged and illustrated.
In addition, the jack 10 can also lift the top girder 7 via the tension rod 13 as shown in FIG. 9 instead of the strand 11 shown in FIG.
【０００３】図８、図９に示すように、ボイラ天井部３
はトップ大梁７に予め吊り下げられた状態で対向する二
つのボイラ鉄骨柱５の間であって、ボイラ鉄骨柱５のさ
らに上部に設けられたジャッキ用仮設架台９に取り付け
られたジャッキ１０と該ジャッキ１０に取り付けられた
ストランド１１（図８）またはテンションロッド１３
（図９）によりトップ大梁７を吊り揚げる。すなわち、
トップ大梁７の吊り揚げはストランド１１（図８）また
はテンションロッド１３（図９）を介してジャッキ１０
により行われ、このときトップ大梁７側の支持点はトッ
プ大梁７の下側面に取り付けられる治具小梁１５の当接
部分にある。As shown in FIGS. 8 and 9, the boiler ceiling 3
Is a space between two boiler steel columns 5 facing each other in a state of being suspended in advance from the top girder 7, and a jack 10 attached to a jack temporary installation base 9 provided further above the boiler steel columns 5 and Strand 11 (FIG. 8) or tension rod 13 attached to the jack 10.
The top girder 7 is lifted by (FIG. 9). That is,
The top girder 7 is lifted by the jack 10 through the strand 11 (FIG. 8) or the tension rod 13 (FIG. 9).
The support point on the side of the top girder 7 at this time is at the contact portion of the jig girder 15 attached to the lower surface of the top girder 7.
【０００４】このように、図７〜図９に示す従来技術に
おいては、ボイラ天井部３に吊り下げたトップ大梁７を
吊り揚げるため、ジャッキ用仮設架台９、ジャッキ１
０、ストランド１１及び治具小梁１５などの多数の部材
から成る吊り揚げ装置が使用されていた。また、ジャッ
キ用仮設架台９はジャッキ１０をストランド１１または
テンションロッド１３の鉛直線方向に取り付ける必要が
あるため、ジャッキ用仮設架台９をボイラ鉄骨柱５側の
ブラケット１２の上部にトップ大梁７側へ延出させて設
ける必要があった。また、ジャッキ用仮設架台９はボイ
ラ天井部３を吊り下げたトップ大梁７の重量が大きいの
で、仮設装置であるにもかかわらず、大掛かりな装置と
なっていた。そして、ボイラ天井部３の吊り揚げ終了後
には、トップ大梁７の両端部とボイラ鉄骨柱５側のブラ
ケット１２とをスプライスプレートなどで結合し、さら
にストランド１１またはテンションロッド１３及び仮設
装置であるジャッキ用仮設架台９を解体撤去して据付け
が完了するが、特に大掛かりな装置であるジャッキ用仮
設架台９の解体撤去作業が困難で、コストのかかる作業
であった。As described above, in the prior art shown in FIGS. 7 to 9, since the top girder 7 suspended from the boiler ceiling 3 is lifted, the temporary rack 9 for jacks and the jack 1 are used.
A lifting device composed of a large number of members such as 0, strands 11 and jig beam 15 was used. Moreover, since the jack 10 is required to be attached to the jack 10 in the vertical direction of the strand 11 or the tension rod 13, the jack temporary stand 9 is attached to the top girder 7 side above the bracket 12 on the boiler steel frame 5 side. It was necessary to extend it. Further, since the jack temporary pedestal 9 is a temporary device, it is a large-scale device because the top girder 7 on which the boiler ceiling 3 is suspended is heavy. After the hoisting of the boiler ceiling portion 3 is completed, both ends of the top girder 7 and the bracket 12 on the boiler steel column 5 side are connected by a splice plate or the like, and further the strand 11 or the tension rod 13 and a jack which is a temporary device. Although the installation is completed by dismantling and removing the temporary mount 9 for use, the dismantling work of the temporary mount 9 for jack, which is a particularly large-scale device, is difficult and costly.
【０００５】また、図１０にはボイラ天井部３の吊り揚
げ方法の他の従来技術の例を示す。図１０にはボイラ天
井部（図示せず）の吊り揚げ途中の状態を示している
が、この例においては、ボイラ天井部（図示せず）が吊
り下げられたトップ大梁７を吊り揚げるため、ボイラ鉄
骨柱５の最上階６の側面部にジャッキ用架台１６を取り
付け、この架台１６にジャッキ１０を載せる。一方、ト
ップ大梁７の下側面にはテンションロッド受け座１７を
備えた支持装置１９を設け、この支持装置１９とトップ
大梁７とを反力受け２０により連結する。テンションロ
ッド受け座１７をトップ大梁７の側面より延出して設
け、架台１６上のジャッキ１０によりテンションロッド
１３を鉛直線方向上方に吊り揚げることで、トップ大梁
７の側面とボイラ鉄骨柱５の最上階６の側面に設けられ
たブラケット１２の側面とを一致させ、結合後のトップ
大梁７とブラケット１２を図１０のＤ−Ｄ線方向から見
た図である図１１に示すようにスプライスプレート２
１、２２及びボルト２３、ナット（図示せず）でトップ
大梁７の両端部とボイラ鉄骨柱５側のブラケット１２と
を結合する。図１１にはトップ大梁７はＨ型鋼を用い、
ボイラ鉄骨柱５は中空角柱鋼を用いた例を示している。
図１０〜図１１に示す技術では、十分な作業場所を確保
するため、ボイラ鉄骨柱５の最上階６と同一階にジャッ
キ用架台１６を用いていることに特徴がある。すなわ
ち、当該技術はボイラ本体の吊り揚げとトップ大梁７と
ボイラ鉄骨柱５のブラケット１２間の結合後には、テン
ションロッド１３及び仮設品である支持装置１９、テン
ションロッド受座１７及び反力受け２０を解体撤去する
が、図７〜図９で示す技術のような大掛かりなジャッキ
用仮設架台９の設置と解体撤去作業がないので、作業的
には比較的有利な方法である。FIG. 10 shows another example of the conventional technique for hoisting the boiler ceiling 3. FIG. 10 shows a state in which the boiler ceiling (not shown) is being lifted, but in this example, since the top girder 7 on which the boiler ceiling (not shown) is suspended is lifted, The jack mount 16 is attached to the side surface of the uppermost floor 6 of the boiler steel frame pillar 5, and the jack 10 is placed on the mount 16. On the other hand, a support device 19 having a tension rod receiving seat 17 is provided on the lower side surface of the top girder 7, and the support device 19 and the top girder 7 are connected by a reaction force receiver 20. The tension rod receiving seat 17 is provided so as to extend from the side surface of the top girder 7, and the tension rod 13 is lifted upward in the vertical direction by the jack 10 on the pedestal 16, so that the side surface of the top girder 7 and the uppermost part of the boiler steel frame column 5 can be lifted. As shown in FIG. 11, which is a view of the top girder 7 and the bracket 12 after coupling, which are aligned with the side surface of the bracket 12 provided on the side surface of the floor 6 as seen from the direction of the line D-D in FIG.
Both ends of the top girder 7 and the bracket 12 on the side of the boiler steel frame 5 are connected to each other with 1, 22 and bolts 23 and nuts (not shown). In FIG. 11, the H-shaped steel is used for the top girder 7,
The boiler steel column 5 shows an example using hollow prismatic steel.
The technique shown in FIGS. 10 to 11 is characterized in that the jack stand 16 is used on the same floor as the uppermost floor 6 of the boiler steel-framed pillar 5 in order to secure a sufficient working place. That is, the technique is such that after the hoisting of the boiler main body and the connection between the top girder 7 and the bracket 12 of the boiler steel column 5, the tension rod 13 and the support device 19, which is a temporary component, the tension rod seat 17, and the reaction force receiver 20 are provided. However, this is a relatively advantageous method in terms of work, since there is no large-scale installation and dismantling of the temporary rack 9 for jacks as in the technique shown in FIGS. 7 to 9.
【０００６】[0006]
【発明が解決しようとする課題】以上述べた従来技術に
は次のような問題点があった。すなわち、図７〜図９に
示す従来技術では、ジャッキ用仮設架台９をボイラ鉄骨
柱５の最上階６及びボイラ鉄骨柱５のブラケット１２の
さらに上の階に仮設しなければならなかった。また、図
１０、図１１に示す他の従来技術ではトップ大梁７の下
部に大がかりな支持装置１９及び反力受け２０を仮設し
なければならなかった。上記従来技術のジャッキ用仮設
架台９や支持装置１９及び反力受け２０はボイラ天井部
３の吊り揚げ時にのみ使用されるものであり、ボイラ天
井部３の吊り揚げ終了後は解体撤去される。それにもか
かわらず、前記仮設架台９や支持装置１９は強度上、ボ
イラ本体１の構造物と同等の性能を必要とし、大掛かり
なものであるため、その設計、製作、据付け、解体及び
撤去に多大の費用と期間を要していた。本発明の目的
は、このような従来技術の課題を解決するためのもの
で、設計、製作、据付け、解体及び撤去が容易なボイラ
の据付け技術を提供することである。また、本発明の目
的は、設計、製作、据付け、解体及び撤去が容易なボイ
ラ本体の吊り揚げ技術を提供することである。The above-mentioned prior art has the following problems. That is, in the prior art shown in FIGS. 7 to 9, the jack temporary mount 9 had to be temporarily installed on the uppermost floor 6 of the boiler steel column 5 and the floor further above the bracket 12 of the boiler steel column 5. Further, in the other conventional techniques shown in FIGS. 10 and 11, a large-scale support device 19 and a reaction force receiver 20 have to be temporarily installed under the top girder 7. The above-described conventional jack temporary mount 9, support device 19, and reaction force receiver 20 are used only when hoisting the boiler ceiling 3, and are dismantled and removed after the hoisting of the boiler ceiling 3 is completed. Nevertheless, the temporary pedestal 9 and the supporting device 19 require the same performance as the structure of the boiler body 1 in terms of strength, and are large-scaled, so that the design, manufacture, installation, dismantling, and removal of the temporary pedestal 9 and the supporting device 19 are very large. It took a long time and cost. An object of the present invention is to solve the problems of the prior art and to provide a boiler installation technique that is easy to design, manufacture, install, dismantle and remove. Another object of the present invention is to provide a hoisting technique for a boiler main body, which is easy to design, manufacture, install, dismantle and remove.
【０００７】[0007]
【課題を解決するための手段】本発明の上記目的は次の
構成によって達成される。すなわち、ボイラ本体の上部
を吊り下げているトップ大梁を吊り揚げてトップ大梁両
端部の結合相手となるボイラ鉄骨柱側に設けたブラケッ
トと結合させるボイラの据付け方法において、長手方向
両端部の側面形状を上側よりも下側を長くしたブラケッ
トとの結合部を有するトップ大梁の長手方向両端部より
内側であって両端部近傍の下面部分と、側面形状を下側
よりも上側を長くしたトップ大梁との結合部を有するボ
イラ鉄骨柱側ブラケットの上面部分とに、それぞれ支持
点を有する支持部材を用いてトップ大梁を吊り揚げるこ
とによりトップ大梁をブラケットに結合するボイラの据
付け方法、または、ボイラ本体の上部を吊り下げている
トップ大梁を吊り揚げてトップ大梁両端部の結合相手と
なるボイラ鉄骨柱側に設けたブラケットと結合させるボ
イラの据付け構造体において、長手方向両端部の側面形
状を上側よりも下側を長くしたブラケットとの結合部を
有するトップ大梁と、側面形状を下側よりも上側を長く
したトップ大梁との結合部を有するボイラ鉄骨柱側のブ
ラケットと、トップ大梁の長手方向両端部より内側であ
って両端部近傍の下面部分とボイラ鉄骨柱側ブラケット
のブラケット上面部分とにそれぞれ支持点を有する支持
部材と該支持部材を介してトップ大梁を吊り揚げる吊り
揚げ手段とからなる吊り揚げ装置とを備えたボイラの据
付け構造体である。本発明の上記ボイラの据付け構造体
において、トップ大梁のブラケットとの結合部とブラケ
ットのトップ大梁との結合部は、例えば結合時に略一致
する傾斜面をそれぞれ備えた構造、あるいは結合時に略
一致する嵌め合わせ面をそれぞれ備えた構造とすること
ができる。The above objects of the present invention can be achieved by the following constitutions. That is, in the method of installing the boiler, in which the top girder that suspends the upper part of the boiler main body is lifted and combined with the brackets provided on the side of the steel column of the boiler that is a joint partner of the both ends of the top girder, the side shape of both longitudinal ends Is a bottom girder that is inside the longitudinal ends of the top girder that has a joint with a bracket whose bottom side is longer than the top side and is near both ends, and a top girder whose side shape is longer than the bottom side. In the upper surface portion of the boiler steel frame side bracket having a coupling part of, the boiler installation method of coupling the top girder to the bracket by hoisting the top girder using the support members having the respective supporting points, or the boiler main body The top girder that suspends the upper part is hoisted and connected to the brackets on the side of the steel column of the boiler that is the mating partner of both ends of the top girder. In the boiler installation structure to be made, the top girder having a joint portion with the bracket in which the side shapes of the longitudinal end portions are longer on the lower side than on the upper side, and the top girder on which the side shape is longer on the upper side than on the lower side, A bracket on the side of the boiler steel frame having a coupling portion, and a support member having support points on the lower surface portion inside both ends in the longitudinal direction of the top girder and near both ends and the bracket upper surface portion of the bracket on the side of the boiler steel frame, respectively. A boiler installation structure including a hoisting device including hoisting means for hoisting a top girder through the support member. In the boiler installation structure of the present invention, the coupling portion between the top girder and the bracket and the coupling portion between the top girder and the bracket are, for example, structures having inclined surfaces that substantially coincide with each other at the time of coupling, or substantially coincide with each other at the time of coupling. The structure may be provided with each fitting surface.
【０００８】[0008]
【作用】本発明によれば、トップ大梁側における支持部
材（実施例の治具小梁１５）の支持点は、トップ大梁の
長手方向両端部より内側であって、該両端部近傍の下側
面部分に設けられ、ボイラ鉄骨柱側ブラケット側におけ
る支持部材（実施例の治具小梁１５）の支持点は、ブラ
ケットの上側面部分に設けることができる。そして、支
持部材の支持点は長手方向両端部の側面形状を上側より
も下側を長くしたトップ大梁の下側面と側面形状を下側
よりも上側を長くしたボイラ鉄骨柱側ブラケットの上側
面とに設けられるので、両方の支持点を介して吊り揚げ
手段で鉛直方向上方にボイラ天井部を吊り揚げることが
できる。したがって、ボイラ天井部を吊り下げたトップ
大梁を吊り揚げるために、大がかりな仮設架台や支持装
置を設ける必要がなくなる。According to the present invention, the supporting point of the supporting member (the jig beam 15 in the embodiment) on the side of the top girder is inside the longitudinal end portions of the top girder, and the lower side surface near the both end portions. The supporting point of the supporting member (the jig beam 15 of the embodiment) provided on the portion on the boiler steel frame side bracket side can be provided on the upper side surface portion of the bracket. The support points of the supporting member are the lower side surface of the top girder whose side shapes at both longitudinal ends are longer than the upper side and the lower side surface of the boiler steel frame side bracket whose side shape is longer than the lower side. Since it is provided in the above, the boiler ceiling part can be hung vertically upward by the hoisting means via both supporting points. Therefore, it is not necessary to provide a large-scale temporary mount or a supporting device in order to lift the top girder that suspends the boiler ceiling.
【０００９】[0009]
【実施例】以下、図１〜図５を参照して、本発明の一実
施例について説明する。図１〜図３はボイラ天井部（図
示せず）を吊下げているトップ大梁７を本実施例に従っ
て吊り揚げる要領を示すもので、図１、図２はトップ大
梁７の吊り揚げ途中の状態を示し、図２は図１のＡ−Ａ
線視図である。図３はトップ大梁７の吊り揚げ終了の状
態を示す。また、図４と図５には図３のトップ大梁７と
ブラケット１２との結合部をスプライスプレート２１、
２２とボルト２３とナット（図示せず）で結合した後の
状態図を示す。本実施例によれば、図１に示すようにボ
イラ鉄骨柱５の最上階６に直接トップ大梁７と結合させ
るためのブラケット１２を取り付ける。そして、ボイラ
天井部（図示せず）を吊下げているトップ大梁７の前記
ブラケット１２と結合する側面とブラケット１２のトッ
プ大梁７と結合する側面とが、結合時に一致するように
するが、そのとき、トップ大梁７の両端部の側面形状を
下側を上側よりも長くした傾斜面とし、ブラケット１２
のトップ大梁７との結合用の端部の側面形状を上側を下
側よりも長くした傾斜面する。そして、図２に示される
ようにブラケット１２上面の幅方向に治具小梁１５を取
り付け、一対のジャッキ１０をこの治具小梁１５の両方
の上面に取り付ける。また、同様にトップ大梁７の両端
部の内側であって、該両端部近傍の下面の幅方向にも治
具小梁１５を取り付ける。ブラケット１２上面に取り付
けた治具小梁１５とトップ大梁７の下面に取り付けた治
具小梁１５とは一対のジャッキ１０により吊り揚げられ
るテンションロッド１３で連結されている。なお、図２
から分かるようにトップ大梁７とブラケット１２は、そ
の結合面が同一形状であるＨ型鋼であり、鉄骨柱５は中
空角柱鋼を用いた例を示しているが、トップ大梁７、ブ
ラケット１２及び鉄骨柱５として使用される鋼材はＨ型
鋼、中空角柱鋼またはその他の形状のいかなる構造材料
を用いても良い。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 3 show a procedure for hoisting a top girder 7 suspending a boiler ceiling (not shown) according to this embodiment, and FIGS. 1 and 2 show a state in which the top girder 7 is being hoisted. 2 is shown in FIG.
FIG. FIG. 3 shows a state where the lifting of the top girder 7 is completed. Further, in FIGS. 4 and 5, the connecting portion between the top girder 7 and the bracket 12 of FIG.
The state figure after connecting with 22 and the bolt 23, and a nut (not shown) is shown. According to the present embodiment, as shown in FIG. 1, the bracket 12 for directly connecting to the top girder 7 is attached to the uppermost floor 6 of the boiler steel frame column 5. Then, the side surface of the top girder 7 that suspends the boiler ceiling (not shown) that is connected to the bracket 12 and the side surface of the bracket 12 that is connected to the top girder 7 are made to coincide with each other at the time of connection. At this time, the side surface shape of both ends of the top girder 7 is an inclined surface in which the lower side is longer than the upper side, and the bracket 12
The side shape of the end portion for coupling with the top girder 7 is inclined such that the upper side is longer than the lower side. Then, as shown in FIG. 2, the jig beam 15 is attached in the width direction of the upper surface of the bracket 12, and the pair of jacks 10 are attached to both upper surfaces of the jig beam 15. Similarly, the jig girders 15 are also attached inside the both ends of the top girder 7 and in the width direction of the lower surface near the both ends. The jig beam 15 attached to the upper surface of the bracket 12 and the jig beam 15 attached to the lower surface of the top girder 7 are connected by a tension rod 13 lifted by a pair of jacks 10. Note that FIG.
As can be seen from the above, the top girder 7 and the bracket 12 are H-shaped steels having the same coupling surface, and the steel column 5 is an example using hollow prismatic steel. The steel material used as the pillar 5 may be H-shaped steel, hollow prismatic steel, or any other structural material having a shape.
【００１０】図３にはトップ大梁７がテンションロッド
１３を介してジャッキ１０により吊り揚げられて、ボイ
ラ鉄骨柱５の最上階６に取り付けられたブラケット１２
と結合する直前の状態を示す。また、図４には図３のト
ップ大梁７とブラケット１２との結合部をスプライスプ
レート２１、２２とボルト２３とナット２４で結合した
後の状態の拡大図を示す。図５は図４のＢ−Ｂ線視図で
ある。上記実施例において、テンションロッド１３の代
わりに図８に示すようにストランド１１を用いても良
い。また、図６には本発明による他の実施例を示す。こ
の例はトップ大梁７の両端部とボイラ鉄骨柱５の最上階
６に取り付けられるブラケット１２の一対の端部の側面
形状が階段状になっていて、これらを突き合わせて一体
化する。このとき、トップ大梁７の両端部側面の階段状
部分は下側の階段状部分が上側のそれよりも長くなって
いて、ブラケット１２はそれと反対に下側の側面階段状
部分が上側のそれよりも短くなっていることが吊り揚げ
用のテンションロッド１３をトップ大梁７とブラケット
１２に取り付けるために必要である。また、トップ大梁
７の比較的長い階段状部分の下面とブラケット１２の比
較的長い階段状部分の上面とにそれぞれ治具小梁１５を
設け、さらにブラケット１２側の治具小梁１５上にジャ
ッキ１０を設けてテンションロッド１３を該ジャッキ１
０で吊り揚げるものである。In FIG. 3, a top girder 7 is hoisted by a jack 10 via a tension rod 13, and a bracket 12 attached to the uppermost floor 6 of the boiler steel frame column 5.
Shows the state immediately before combining with. Further, FIG. 4 shows an enlarged view of a state after the joining portion between the top girder 7 and the bracket 12 of FIG. 3 is joined by the splice plates 21 and 22, the bolt 23 and the nut 24. FIG. 5 is a BB line view of FIG. 4. In the above embodiment, the strand 11 may be used instead of the tension rod 13 as shown in FIG. FIG. 6 shows another embodiment according to the present invention. In this example, both end portions of the top girder 7 and a pair of end portions of the bracket 12 attached to the uppermost floor 6 of the boiler steel frame column 5 have stepwise side surfaces, and these are abutted and integrated. At this time, in the stepped portions on both side surfaces of the top girder 7, the lower stepped portion is longer than that on the upper side, and the bracket 12 is opposite to that, and the lower side stepped portion is on the upper side. It is necessary that the tension rod 13 for lifting be attached to the top girder 7 and the bracket 12 to be short. Further, jig girders 15 are provided on the lower surface of the relatively long stepped portion of the top girder 7 and on the upper surface of the relatively long stepped portion of the bracket 12, respectively. 10 is provided and the tension rod 13 is attached to the jack 1
It is hung at 0.
【００１１】本発明の上記実施例において、ジャッキ１
０及びテンションロッド１３がトップ大梁７の下側面と
ブラケット１２の上側面とが一致するように連結できる
のは、トップ大梁７の両端とブラケット１２との結合部
分を傾斜あるいは相互に突き出す構成としたことによ
り、ジャッキ１０及びテンションロッド１３と最短距離
で結ばれたことによる。ジャッキ１０によりテンション
ロッド１３を吊り揚げることにより、トップ大梁７が吊
り揚げられ、吊り揚げ終了後にはトップ大梁７の両端部
をボイラ鉄骨柱５側のブラケット１２とをスプライスプ
レート２１、２２、ボルト２３、ナット２４を用いて結
合させれば、トップ大梁７の据付けが完了する。こうし
て、本実施例では、従来技術のように、ジャッキ用仮設
架台９（図８、図９）や大掛かりな支持装置１９（図１
０）が不要となり、これらの設計、製作、据付け、解体
及び撤去の作業が無くなるので、物量、工数の面で大幅
な費用低減及び工程短縮が可能となる。In the above embodiment of the present invention, the jack 1
0 and the tension rod 13 can be connected so that the lower side surface of the top girder 7 and the upper side surface of the bracket 12 coincide with each other because the connecting portions of the both ends of the top girder 7 and the bracket 12 are inclined or protrude from each other. This is because it is connected to the jack 10 and the tension rod 13 at the shortest distance. The top girder 7 is hoisted by hoisting the tension rod 13 with the jack 10, and after the hoisting is finished, both ends of the top girder 7 are connected to the bracket 12 on the boiler steel frame column 5 side with the splice plates 21, 22 and the bolt 23. If the nuts 24 are used for connection, the installation of the top girder 7 is completed. In this way, in this embodiment, as in the prior art, the jack temporary mount 9 (FIGS. 8 and 9) and the large-scale support device 19 (FIG. 1).
0) is unnecessary, and the work of designing, manufacturing, installing, dismantling, and removing them is eliminated, so that it is possible to significantly reduce the cost and shorten the process in terms of quantity and man-hours.
【００１２】更に、本発明の上記実施例において、ジャ
ッキ１０のブラケット１２への据付け位置をボイラ鉄骨
柱５側へ極限まで近づけることができるので、吊り揚げ
荷重によるボイラ鉄骨柱５への作用モーメントが低減さ
れ、その分、ボイラ鉄骨柱５の軽量化ができ、経済的な
ボイラ鉄骨柱５とすることができる。また、本実施例に
よれば、ジャッキ１０及びテンションロッド１３が最短
距離で結ばれているので、吊り揚げ終了時のトップ大梁
７の揺れを最小限にすることができる。さらに、本実施
例によれば、トップ大梁７の側面形状は上側が下側より
短く、これに対しブラケット１２の側面形状は下側が上
側より短くなっているので、トップ大梁７の吊り揚げ途
中において、トップ大梁７の上側とブラケット１２の下
側との隙間が大きいため、トップ大梁７の揺れによる相
互の衝突を防止することができる。Further, in the above-described embodiment of the present invention, since the installation position of the jack 10 on the bracket 12 can be made as close as possible to the boiler steel frame column 5 side, the acting moment on the boiler steel frame column 5 due to the lifting load is increased. The boiler steel frame column 5 can be reduced in weight, and the boiler steel frame column 5 can be reduced in weight accordingly, and the boiler steel frame column 5 can be economical. Further, according to the present embodiment, since the jack 10 and the tension rod 13 are connected at the shortest distance, the swing of the top girder 7 at the end of lifting can be minimized. Furthermore, according to the present embodiment, the side shape of the top girder 7 is shorter on the upper side than on the lower side, while the side shape of the bracket 12 is shorter on the lower side than on the upper side. Therefore, during lifting of the top girder 7. Since the gap between the upper side of the top girder 7 and the lower side of the bracket 12 is large, it is possible to prevent mutual collision due to the swinging of the top girder 7.
【００１３】[0013]
【発明の効果】本発明によれば、トップ大梁の吊り揚げ
用にジャッキ用仮設架台や支持装置が不要となり、これ
らの設計、製作、据付け、解体及び撤去の作業が無くな
るので、物量、工数の面で大幅な費用低減及び工程短縮
が可能となるなどの効果がある。EFFECTS OF THE INVENTION According to the present invention, a temporary rack for a jack and a supporting device for hoisting a top girder are not required, and the work of designing, manufacturing, installing, dismantling and removing them is eliminated. In terms of aspects, there are effects such as a significant cost reduction and process reduction.
【図１】 本発明の一実施例のボイラ天井部を吊下げて
いるトップ大梁の吊り揚げ途中の状態を示す図である。FIG. 1 is a diagram showing a state where a top girder that suspends a ceiling portion of a boiler according to an embodiment of the present invention is being lifted.
【図２】 図１のＡ−Ａ視図である。FIG. 2 is an AA view of FIG.
【図３】 本発明の一実施例のトップ大梁の吊り揚げ終
了の状態を示す図である。FIG. 3 is a diagram showing a state where lifting of the top girder of the embodiment of the present invention is completed.
【図４】 図３のトップ大梁とブラケットとの結合部を
スプライスプレートとをボルト・ナットで結合した後の
状態図である。FIG. 4 is a state diagram after connecting the top girder and the bracket of FIG. 3 to the splice plate with a splice plate.
【図５】 図４のＢ−Ｂ線視図である。5 is a BB line view of FIG. 4. FIG.
【図６】 本発明の他の実施例のボイラ天井部を吊下げ
ているトップ大梁の吊り揚げ途中の状態を示す図であ
る。FIG. 6 is a diagram showing a state in which the top girder that suspends the ceiling portion of the boiler according to another embodiment of the present invention is being lifted.
【図７】 一般的なボイラ本体の伝熱管を備えた天井部
をトップ大梁に吊り下げた構造図である。FIG. 7 is a structural diagram in which a ceiling portion provided with a heat transfer tube of a general boiler main body is hung on a top girder.
【図８】 従来技術のボイラ本体の吊り揚げ方法を示す
もので、ボイラ本体の吊り揚げ前と及び吊り揚げ終了の
状態を示した図である。FIG. 8 is a view showing a conventional method of hoisting a boiler body, and is a diagram showing a state before hoisting the boiler body and a state where hoisting is finished.
【図９】 図８に示す従来技術に対応したボイラ本体の
吊り揚げ途中の状態を示したトップ大梁及びボイラ鉄骨
柱側のブラケット部周辺の拡大図である。9 is an enlarged view of a top girder and a bracket portion around a boiler steel frame column showing a state in which the boiler main body corresponding to the conventional technique shown in FIG. 8 is being lifted. FIG.
【図１０】 従来技術のボイラ本体の吊り揚げ方法を示
したもので、吊り揚げ途中の状態を示した図である。FIG. 10 is a diagram showing a conventional method of hoisting a boiler body, and is a diagram showing a state during hoisting.
【図１１】 図１０のＤ−Ｄ線視図である。11 is a view taken along the line DD of FIG.
１…ボイラ本体、２…伝熱管、３…ボイラ天井部、５…
鉄骨柱、６…鉄骨柱最上階、７…トップ大梁、１０…ジ
ャッキ、１２…ブラケット、１３…テンションロッド、
１５…治具小梁、２１、２２…スプライスプレート1 ... Boiler body, 2 ... Heat transfer tube, 3 ... Boiler ceiling, 5 ...
Steel column, 6 ... Steel column top floor, 7 ... Top beam, 10 ... Jack, 12 ... Bracket, 13 ... Tension rod,
15 ... Jig beam, 21, 22 ... Splice plate
Claims (4)
プ大梁を吊り揚げてトップ大梁両端部の結合相手となる
ボイラ鉄骨柱側に設けたブラケットと結合させるボイラ
の据付け方法において、 長手方向両端部の側面形状を上側よりも下側を長くした
ブラケットとの結合部を有するトップ大梁の長手方向両
端部より内側であって両端部近傍の下面部分と、側面形
状を下側よりも上側を長くしたトップ大梁との結合部を
有するボイラ鉄骨柱側ブラケットの上面部分とに、それ
ぞれ支持点を有する支持部材を用いてトップ大梁を吊り
揚げることによりトップ大梁をブラケットに結合するこ
とを特徴とするボイラの据付け方法。Claim: What is claimed is: 1. A method for installing a boiler in which a top girder that suspends the upper part of a boiler body is hoisted and connected to a bracket provided on the side of a boiler steel frame that is a mating partner of both ends of the top girder. The side shape of the top girder that has a connecting part with the bracket whose bottom side is longer than the top side is inside the longitudinal both ends of the top girder and is near both ends, and the side shape is longer than the bottom side. A boiler characterized in that the top girder is connected to the bracket by hoisting the top girder using a supporting member having a supporting point on the upper surface portion of the boiler steel frame side bracket having a connecting part with the top girder. Installation method.
プ大梁を吊り揚げてトップ大梁両端部の結合相手となる
ボイラ鉄骨柱側に設けたブラケットと結合させるボイラ
の据付け構造体において、 長手方向両端部の側面形状を上側よりも下側を長くした
ブラケットとの結合部を有するトップ大梁と、 側面形状を下側よりも上側を長くしたトップ大梁との結
合部を有するボイラ鉄骨柱側のブラケットと、 トップ大梁の長手方向両端部より内側であって両端部近
傍の下面部分とボイラ鉄骨柱側ブラケットのブラケット
上面部分とにそれぞれ支持点を有する支持部材と該支持
部材を介してトップ大梁を吊り揚げる吊り揚げ手段とか
らなる吊り揚げ装置とを備えたことを特徴とするボイラ
の据付け構造体。2. A boiler installation structure in which a top girder that suspends an upper part of a boiler body is lifted up and is joined to a bracket provided on the side of a steel pillar of a boiler that is a mating partner of both ends of the top girder. A top girder having a joint with a bracket whose side shape is longer on the lower side than the upper side, and a bracket on the side of a boiler steel frame having a joint with a top girder on which the side shape is longer than the lower side. , A support member having support points inside the longitudinal girders of the top girder and inside the vicinities of both ends and the bracket upper face part of the boiler steel frame side bracket, and hoisting the top girder through the supporting member A boiler installation structure comprising: a hoisting device including hoisting means.
ラケットのトップ大梁との結合部は結合時に略一致する
傾斜面をそれぞれ備えたことを特徴とする請求項２記載
のボイラの据付け構造体。3. The boiler installation structure according to claim 2, wherein the joint portion of the top girder with the bracket and the joint portion of the bracket with the top girder each have inclined surfaces that substantially coincide with each other when they are joined.
ラケットのトップ大梁との結合部は結合時に略一致する
嵌め合わせ面をそれぞれ備えたことを特徴とする請求項
２記載のボイラの据付け構造体。4. The boiler installation structure according to claim 2, wherein the joint portion of the top girder with the bracket and the joint portion of the bracket with the top girder each have fitting surfaces that substantially coincide with each other when they are joined. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25043894A JP3630731B2 (en) | 1994-10-17 | 1994-10-17 | Boiler installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25043894A JP3630731B2 (en) | 1994-10-17 | 1994-10-17 | Boiler installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08114302A true JPH08114302A (en) | 1996-05-07 |
| JP3630731B2 JP3630731B2 (en) | 2005-03-23 |
Family
ID=17207885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25043894A Expired - Lifetime JP3630731B2 (en) | 1994-10-17 | 1994-10-17 | Boiler installation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3630731B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7966727B2 (en) | 2005-10-12 | 2011-06-28 | Babcock-Hitachi Kabushiki Kaisha | Installation construction method for boiler facilities |
| US8177080B2 (en) | 2008-07-04 | 2012-05-15 | Hitachi Plant Technologies, Ltd. | Girder block lifting method and jack-up stage used therefor |
| US8251298B2 (en) | 2005-10-12 | 2012-08-28 | Babcock-Hitachi Kabushiki Kaisha | Installation construction method for boiler facilities |
| CN103759244A (en) * | 2013-12-31 | 2014-04-30 | 上海四方锅炉集团工程成套股份有限公司 | Tail portion heating surface sealing supporting structure and industrial exhaust gas boiler |
| CN109268809A (en) * | 2018-10-25 | 2019-01-25 | 中国电建集团重庆工程有限公司 | Frame and hanging method are removed |
-
1994
- 1994-10-17 JP JP25043894A patent/JP3630731B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7966727B2 (en) | 2005-10-12 | 2011-06-28 | Babcock-Hitachi Kabushiki Kaisha | Installation construction method for boiler facilities |
| US8251298B2 (en) | 2005-10-12 | 2012-08-28 | Babcock-Hitachi Kabushiki Kaisha | Installation construction method for boiler facilities |
| US8177080B2 (en) | 2008-07-04 | 2012-05-15 | Hitachi Plant Technologies, Ltd. | Girder block lifting method and jack-up stage used therefor |
| AU2009202712B2 (en) * | 2008-07-04 | 2014-10-23 | Hitachi, Ltd. | Girder block lifting method and jack-up stage used therefor |
| CN103759244A (en) * | 2013-12-31 | 2014-04-30 | 上海四方锅炉集团工程成套股份有限公司 | Tail portion heating surface sealing supporting structure and industrial exhaust gas boiler |
| CN103759244B (en) * | 2013-12-31 | 2016-01-13 | 上海四方锅炉集团工程成套股份有限公司 | Back-end surfaces sealing supporting structure and there is the industrial tail gas boiler of this structure |
| CN109268809A (en) * | 2018-10-25 | 2019-01-25 | 中国电建集团重庆工程有限公司 | Frame and hanging method are removed |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3630731B2 (en) | 2005-03-23 |
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