JP2002038717A - Method of installing structural member - Google Patents
Method of installing structural memberInfo
- Publication number
- JP2002038717A JP2002038717A JP2000221755A JP2000221755A JP2002038717A JP 2002038717 A JP2002038717 A JP 2002038717A JP 2000221755 A JP2000221755 A JP 2000221755A JP 2000221755 A JP2000221755 A JP 2000221755A JP 2002038717 A JP2002038717 A JP 2002038717A
- Authority
- JP
- Japan
- Prior art keywords
- span
- log
- structural member
- suspension
- truss
- 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]
【発明の属する技術分野】本発明は、屋根トラスといっ
た横長状の構造部材をトラバーサを介しての吊下げ状態
で取付対象に移動して設置させる設置方法に係り、詳し
くは、構造部材の連結部スパンと取付対象の被連結部ス
パンとがずれている場合に、これら両スパンどうしを合
致させる調節設備の簡略化やコストダウンを図る技術に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation method for moving a horizontally long structural member such as a roof truss to a mounting object in a suspended state through a traverser, and more particularly to a connecting portion of the structural member. The present invention relates to a technique for simplifying and reducing the cost of adjusting equipment that matches two spans when the span is shifted from the connected portion span to be attached.
【０００２】[0002]
【従来の技術】例えば、図１２に示すように、横に長い
構造部材ＫＢである屋根トラス３を、その長手方向で５
箇所のワイヤによる吊下げ手段ＴＳを介してトラバーサ
３１に吊下げ、そのトラバーサ３１をクレーンで吊下げ
移動することで取付対象ＴＴの建物に運び、屋根トラス
３両端の連結部１１，１１と、それらに対応して設けら
れた建物側の被連結部５ａ，５ａとを位置合わせし、そ
して連結部１１と被連結部５ａとを連結するという工程
手順が採られる。2. Description of the Related Art For example, as shown in FIG.
The traverser 31 is hung by a crane via a hanging means TS with a wire at a point, and the traverser 31 is suspended and moved by a crane to the building of the installation target TT. In this case, a process procedure is adopted in which the connected parts 5a, 5a on the building side provided corresponding to the above are aligned, and the connecting part 11 and the connected part 5a are connected.
【０００３】このとき、屋根トラスが長尺体であって連
結部どうしのスパンが比較的長いものであること等か
ら、被連結部どうしのスパンとに寸法誤差が生じ、屋根
トラスと建物との連結が不能になることがしばしばあ
る。そのような場合、従来では、一方若しくは双方の被
連結部をワイヤーで引張る等により、建物側のスパンを
調節することで対処していた。At this time, since the roof truss is long and the span between the connecting parts is relatively long, a dimensional error occurs in the span between the connected parts and the connection between the roof truss and the building. Is often impossible. In such a case, conventionally, one or both of the connected parts have been adjusted by adjusting the span on the building side by pulling with a wire.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、建物側
被連結部のスパン調節を行う手段は、固定部である被連
結部を引張る比較的大掛かりな設備や設置スペースが必
要であり、どんな現場でも採用できるというものではな
かったとともに、その設置に手間が掛るといった不利も
あり、改善の余地が残されていた。However, the means for adjusting the span of the connected portion on the building side requires relatively large-scale equipment and installation space for pulling the connected portion, which is a fixed portion, and is adopted at any site. It was not something that could be done, and it had the disadvantage that it took time and effort to install it, leaving room for improvement.
【０００５】本発明の目的は、大掛かりな設備や装置類
を用意することが無く、簡単で手間もさほど要さず、か
つ、どんな現場においても採用することが可能なスパン
調節方法を提供する点にある。SUMMARY OF THE INVENTION An object of the present invention is to provide a span adjusting method which does not require large-scale facilities and equipment, is simple, requires little labor, and can be adopted at any site. It is in.
【０００６】[0006]
【課題を解決するための手段】〔方法〕請求項１の方法
は、図１２〜図１５に例示する如く、構造部材ＫＢを、
横方向に距離を隔てた複数箇所の吊下げ手段ＴＳを用い
てトラバーサ３１に吊下げ、このトラバーサ３１による
吊下げ状態の構造部材ＫＢを取付対象ＴＴ，ＴＴに移動
させてから、構造部材ＫＢにおける横方向の両端側夫々
の連結部ｒ，ｒを取付対象ＴＴ，ＴＴに連結する構造部
材の設置方法において、吊下げ手段ＴＳを、互いに一横
方向に距離を隔てた３箇所以上に配備し、吊下げ状態に
おける両連結部ｒ，ｒ間の第１スパンＤ１と、取付対象
における両連結部ｒ，ｒに対応した両被連結部ｆ，ｆ間
の第２スパンＤ２とが異なるときには、いずれかの吊下
げ手段ＴＳの吊下げ長さを変更して構造部材ＫＢを撓ま
せることにより、両スパンＤ１，Ｄ２を合致させること
を特徴とする。[Means for Solving the Problems] [Method] According to the method of claim 1, as shown in FIGS.
The suspension member TS is suspended from the traverser 31 using a plurality of suspension units TS spaced apart in the lateral direction, and the structural member KB suspended by the traverser 31 is moved to the mounting targets TT, TT. In a method of installing a structural member for connecting the connecting portions r, r at both ends in the lateral direction to the mounting target TT, TT, the suspending means TS is provided at three or more places separated from each other by one lateral direction, When the first span D1 between the two connecting portions r and r in the suspended state is different from the second span D2 between the two connected portions f and f corresponding to the two connecting portions r and r in the mounting target, one of them is different. The spans D1 and D2 are matched by changing the hanging length of the hanging means TS and bending the structural member KB.
【０００７】請求項２の方法は、図１３〜図１５に例示
する如く、請求項１の方法において、構造部材ＫＢの側
面視形状が、その横方向両端部が横方向中間部よりも下
方に位置する略凸状の場合において、構造部材ＫＢの側
面視略凸状形状を保持しながら複数の吊下げ手段ＴＳで
吊下げた状態で、第１スパンＤ１が第２スパンＤ２より
も短いときには、吊下げ手段ＴＳのうちの一横方向の中
央部に位置する中央部側吊下げ手段ＴＳの吊下げ長さを
より長く調整するか、又は一横方向の両端部に位置する
端部側吊下げ手段ＴＳの吊下げ長さをより短く調整し、
第１スパンＤ１が第２スパンＤ２よりも長いときには、
中央部側吊下げ手段ＴＳの吊下げ長さをより短く調整す
るか、又は端部側吊下げ手段ＴＳの吊下げ長さをより長
く調整することを特徴とする。According to a second aspect of the present invention, as shown in FIGS. 13 to 15, in the method of the first aspect, the side view shape of the structural member KB is such that both lateral end portions thereof are lower than the lateral middle portion. In the case where the first span D1 is shorter than the second span D2 in a state where the structural member KB is suspended by the plurality of suspending means TS while maintaining the substantially convex shape in a side view, Either adjust the suspension length of the central suspension means TS located at the central part in one lateral direction of the suspension means TS longer, or suspend at the end part located at both lateral end parts. Adjust the suspension length of the means TS to be shorter,
When the first span D1 is longer than the second span D2,
The suspension length of the center-side suspension means TS is adjusted to be shorter, or the suspension length of the end-side suspension means TS is adjusted to be longer.
【０００８】尚、上述のように、図面との対照を便利に
するために符号を記したが、該記入により本発明は添付
図面の方法に限定されるものではない。[0008] As described above, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the method shown in the accompanying drawings.
【０００９】〔作用〕請求項１の方法は、構造部材の自
重による撓みを利用して、構造部材の連結部どうしのス
パンを調節させるものであり、詳しくは実施形態の項に
て説明するが、次のような作用がある。即ち、３箇所以
上の吊下げ手段で構造部材をトラバーサに吊下げてある
ので、例えば、図１６に示すように、水平姿勢で横に長
い矩形状の構造部材３５を、３箇所の吊下げ手段３８，
３９，３８を介してトラバーサ３１に吊下げてあるもの
において、各吊下げ箇所に応じた荷重で吊下げている基
本吊下げ状態のときにおける２箇所の連結部３６，３６
どうしの基本スパンがＬ３であるときに、両端の吊下げ
手段３８，３８の吊下げ長さを長く調節すれば、両端以
外の吊下げ手段（中央側吊下げ手段）３９に掛る吊下げ
荷重が増え、構造部材３５の両端が自重によって垂れ下
がるような状態になる。[Operation] The method of claim 1 utilizes the deflection of the structural member due to its own weight to adjust the span between the connecting portions of the structural member, which will be described in detail in the embodiments. Has the following effects. That is, since the structural member is suspended from the traverser by three or more suspending means, for example, as shown in FIG. 38,
In the case of being suspended from the traverser 31 via the 39, 38, two connecting portions 36, 36 in a basic suspension state in which the suspension is suspended with a load corresponding to each suspension location.
If the hanging length of the hanging means 38 at both ends is adjusted to be long when the basic span of the two is L3, the hanging load applied to the hanging means (central hanging means) 39 other than at both ends is reduced. As a result, both ends of the structural member 35 hang down under their own weight.
【００１０】つまり、調節吊下げ状態での連結部３６，
３６どうしの調節スパンは、基本スパンＬ３よりも短く
なるから、構造部材３５の連結部間スパンＬ３が取付対
象の被連結部間スパンＬ４よりも長い場合に有効であ
り、連結部間スパンＬ３を被連結部間スパンＬ４に合致
させることが可能になる。In other words, the connecting portions 36,
36 is shorter than the basic span L3, it is effective when the span L3 between the connecting portions of the structural member 35 is longer than the span L4 between the connected portions to be mounted. It becomes possible to match the span L4 between the connected parts.
【００１１】又、図１７に示すように、横方向で中央側
が下がった側面視で略凹状の構造部材４０を、４箇所の
吊下げ手段４１，４２を介してトラバーサ３１に吊下げ
てあるものにおいて、前述の基本吊下げ状態時の基本ス
パンがＬ５であるときに、中央側２箇所の吊下げ手段４
２，４２の吊下げ長さを短く調節すれば、それら中央側
２箇所の吊下げ手段４２，４２に掛る吊下げ荷重が増
え、構造部材４０の両端が自重によって垂れ下がるよう
な状態になる。つまり、調節吊下げ状態での連結部４
３，４３どうしの調節スパンは、基本スパンＬ５よりも
長くなるから、構造部材４０の連結部間スパンＬ５が取
付対象ＴＴ，ＴＴの被連結部間スパンＬ６よりも短い場
合に有効であり、連結部間スパンＬ５を被連結部間スパ
ンＬ６に合致させることが可能になる。As shown in FIG. 17, a structural member 40 having a substantially concave shape in a side view with its central side lowered in the lateral direction is suspended from a traverser 31 via four suspension means 41 and 42. In the above, when the basic span in the above-described basic suspension state is L5, two suspension means 4 at the center side are provided.
If the suspension length of the suspension members 2 and 42 is adjusted to be short, the suspension load applied to the suspension means 42 and 42 at the two central positions increases, and both ends of the structural member 40 hang down under their own weight. That is, the connecting portion 4 in the state of being adjusted and suspended.
Since the adjustment span between 3, 43 is longer than the basic span L5, it is effective when the span L5 between the connecting parts of the structural member 40 is shorter than the span L6 between the connected parts of the mounting targets TT and TT. The span L5 between the sections can be matched with the span L6 between the connected sections.
【００１２】要するに、吊下げ状態における両連結部間
の第１スパンと、取付対象における両連結部に対応した
両被連結部間の第２スパンとが異なるときには、構造部
材の形状や重さ分布等に対応して、いずれかの吊下げ手
段の吊下げ長さを変更して構造部材を撓ませることによ
り、これら第１スパンと第２スパンとを合致させること
が可能になるのである。In short, when the first span between the two connecting portions in the suspended state is different from the second span between the two connected portions corresponding to the two connecting portions in the mounting object, the shape and weight distribution of the structural member are different. The first span and the second span can be matched by changing the suspension length of one of the suspension means and bending the structural member in response to the above.
【００１３】請求項２の方法は、詳しくは実施形態の項
にて説明するが、図１３に示すように、構造部材の側面
視形状が、その横方向両端部が横方向中間部よりも下方
に位置する略凸状の場合における取付対象とのスパン合
わせに有効なものである。即ち、構造部材ＫＢの連結部
間スパンＬ１が取付対象ＴＴの被連結部間スパンＬ２よ
りも短い場合には、中央側３箇所の吊下げ手段３３，３
４の吊下げ長さをより長く調整すれば、両端の吊下げ手
段３２に掛る荷重が増大して構造部材ＫＢの中央部分が
垂れ下がるように撓み変形し、連結部間スパンＬ１を長
くして被連結部間スパンＬ２に合致させることが可能に
なる。この場合、両端の吊下げ手段３２の吊下げ長さを
より短く調整することでも同様の作用を得ることができ
る。The method of claim 2 will be described in detail in the embodiment section. As shown in FIG. 13, the lateral shape of the structural member is such that both lateral ends are lower than the lateral middle portion. This is effective for adjusting the span with the object to be mounted in the case of the substantially convex shape. That is, when the span L1 between the connecting portions of the structural member KB is shorter than the span L2 between the connected portions of the attachment target TT, the suspension means 33, 3 at three places on the center side.
If the suspension length of the suspension member 4 is adjusted to be longer, the load applied to the suspension means 32 at both ends increases, and the central portion of the structural member KB is bent and deformed so as to hang down. It becomes possible to match the span L2 between the connecting portions. In this case, the same effect can be obtained by adjusting the suspension length of the suspension means 32 at both ends to be shorter.
【００１４】そして、構造部材の連結部間スパンが取付
対象の被連結部間スパンよりも長い場合には、両端の吊
下げ手段の吊下げ長さをより長く調整すれば、中央側２
箇所の吊下げ手段に掛る荷重が増大して構造部材の両端
部が垂れ下がるように撓み変形し、それによって連結部
間スパンを短くして被連結部間スパンに合致させること
が可能になる。この場合、中央側２箇所の吊下げ手段の
吊下げ長さをより短く調整することでも同様の作用を得
ることができる。When the span between the connecting portions of the structural member is longer than the span between the connected portions to be attached, the suspension length of the suspension means at both ends can be adjusted to be longer, and the center side 2 can be adjusted.
The load applied to the suspending means at the location increases, and both ends of the structural member are bent and deformed so as to hang down, thereby shortening the span between the connecting portions and matching the span between the connected portions. In this case, the same effect can be obtained by adjusting the suspension length of the suspension means at the two central positions to be shorter.
【００１５】〔効果〕請求項１及び２に記載の構造部材
の設置方法では、３箇所以上の吊下げ手段を介してトラ
バーサに吊下げられた構造部材の連結部間スパンの長さ
調節を、いずれかの吊下げ手段の長さを変更調整するこ
とで行えるようにしたので、例えば、ワイヤ巻取り装置
をトラバーサに装備する等の構造簡単で小型な調節手段
で済み、取付対象の被連結部間スパンを調節していた従
来方法に比べて、大掛かりな設備が不要でありかつ、周
囲に余裕スペースが無い等の施工現場の条件如何に拘わ
らずに採用できる便利なものにできた。[Effect] In the method for installing a structural member according to the first and second aspects, the length of the span between the connecting portions of the structural member suspended by the traverser via three or more suspension means is adjusted. Since the length can be adjusted by changing the length of any of the suspension means, a simple and small adjustment means such as mounting a wire take-up device on a traverser is sufficient, and the connected portion to be mounted is required. Compared to the conventional method in which the span was adjusted, a large-scale facility was not required, and it was possible to adopt a convenient one that could be adopted irrespective of the conditions of the construction site such as a lack of extra space around.
【００１６】請求項２に記載の構造部材の設置方法で
は、ドーム屋根や橋脚等の構造物に好適で、比較的需要
の多い側面視凸状の構造物に好適なスパン調節が行える
ものを提供できた。According to a second aspect of the present invention, there is provided a method of installing a structural member, which is suitable for a structure such as a dome roof or a pier, and which can perform span adjustment suitable for a structure which is relatively in demand and has a convex shape in a side view. did it.
【００１７】[0017]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１〜図３に、ドーム屋根Ｒを有
したスポーツセンター（体育館）が示されている。ドー
ム屋根Ｒは、大別して両脇のスチールトラス屋根Ｒ１，
Ｒ１と、これらの間に配置される丸太トラス屋根Ｒ２と
で構成されている。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a sports center (gymnasium) having a dome roof R. Dome roof R is roughly divided into steel truss roofs R1 on both sides.
R1 and a log truss roof R2 arranged between them.
【００１８】スチールトラス屋根Ｒ１は、Ｈ型鋼等の普
及品鋼材をトラス組して構成されたスチール骨組み１上
に屋根パネル材２を設けた一般的な構造のものであり、
丸太トラス屋根Ｒ２は、丸太を三角形状にトラス組して
骨組みに構成された丸太トラス３上に、金属屋根パネル
４を設けた構成である。The steel truss roof R1 has a general structure in which a roof panel member 2 is provided on a steel skeleton 1 formed by truss assembly of a popular steel material such as an H-shaped steel,
The log truss roof R2 has a structure in which a metal roof panel 4 is provided on a log truss 3 which is formed by trussing logs in a triangular shape.
【００１９】ドーム屋根Ｒとしては、一対のスチール骨
組み１，１( 又はトラス屋根Ｒ１，Ｒ１）を先に構築し
ておき、他の場所で予め予備組付けされた複数の丸太ト
ラス３を、各スチール骨組み１先端に配置された湾曲状
のアーチフレーム５，５に亘って架設連結することで作
成されるようになる。次に、丸太トラス３の構造及び作
成方法について説明する。As the dome roof R, a pair of steel frames 1, 1 (or truss roofs R1, R1) are constructed first, and a plurality of pre-assembled log trusses 3 in other places are used. It is created by erection and connection over the curved arch frames 5 and 5 arranged at the tip of the steel frame 1. Next, the structure of the log truss 3 and a method of making the same will be described.
【００２０】図２〜図６に示すように、丸太トラス３
は、主丸太６と２個の副丸太７，８、及び主丸太６の長
手方向中央部と、両副丸太７，８の連結箇所とを連結す
るターンバックル９から成る単位三角トラスを、幅方向
及び長さ方向に複合連結して構成されている。すなわ
ち、両端に亘って１列状態で連結される計４組の第１三
角トラスｔ１と、長手方向に２列状態で連結される計６
組の第２三角トラスｔ２と、長手方向に２列状態で連結
される計４組の第３三角トラスｔ３と、長手方向中央に
配置される計２個の第４三角トラスｔ４との合計１６組
の三角トラスを用いて丸太トラス３を構成してある。As shown in FIG. 2 to FIG.
Is a unit triangular truss composed of a main log 6, two sub logs 7, 8 and a turnbuckle 9 connecting a central portion in the longitudinal direction of the main log 6 and a connecting point of the two sub logs 7, 8 to each other. It is constituted by compound connection in the direction and the length direction. That is, a total of four sets of first triangular trusses t1 connected in a single row across both ends, and a total of six sets connected in a two-row state in the longitudinal direction.
A total of 16 of the set of second triangular trusses t2, four sets of third triangular trusses t3 connected in two rows in the longitudinal direction, and two fourth triangular trusses t4 arranged at the center in the longitudinal direction. The log truss 3 is constructed using a set of triangular trusses.
【００２１】つまり、平面視では丸太トラス３の長手方
向中央部ほど、三角トラスの並設数が多くなり、側面視
では両端部を除いて同じ高さのアーチ形状を呈する状態
に組付け構成されている。各三角トラスｔ１〜ｔ４は、
第１三角トラスｔ１は２本の主丸太６，６を有するのに
対して、第２〜第４三角トラスｔ２〜ｔ４は主丸太６が
１本である以外は基本的に同じ構造である。代表として
第１三角トラスｔ１を参照して各三角トラスｔ１〜ｔ４
の構造を詳述すると次のようである。That is, the number of juxtaposed triangular trusses increases in the longitudinal center portion of the log truss 3 in plan view, and in a side view, the log truss 3 is assembled so as to exhibit an arch shape having the same height except for both end portions. ing. Each triangular truss t1-t4 is
The first triangular truss t1 has two main logs 6 and 6, whereas the second to fourth triangular trusses t2 to t4 have basically the same structure except that one main log 6 is used. Each of the triangular trusses t1 to t4 is referred to as a representative with reference to the first triangular truss t1.
The details of the structure are as follows.
【００２２】図６に示すように、第１三角トラスｔ１
は、主仕口部１０を備えた連結部１１が両端にボルト連
結された一対の主丸太６，６を備えるとともに、主丸太
６，６一端の連結部１１の副仕口部１０Ａにボルト連結
される第１副丸太７と、主丸太６，６他端の連結部１１
の副仕口部１０Ａにボルト連結される第２副丸太８と
を、一対の仕口部１２，１２を備えた副連結部材１３を
介して連結し、かつ、この副連結部材１３と主丸太６，
６の長手方向中央に連結される取付けステー１４とに亘
ってターンバックル９を架設連結して構成されている。As shown in FIG. 6, the first triangular truss t1
The connecting portion 11 having the main connecting portion 10 includes a pair of main logs 6 and 6 having bolts connected to both ends thereof, and a bolt connecting to the sub-portion portion 10A of the connecting portion 11 at one end of the main logs 6 and 6. The first sub log 7 to be connected and the connecting portion 11 at the other end of the main logs 6, 6
The second sub log 8 bolted to the sub port 10A is connected via a sub connection member 13 having a pair of ports 12,12, and the sub log 13 and the main log are connected. 6,
The turnbuckle 9 is constructed and connected to a mounting stay 14 connected to the longitudinal center of the turntable 6.
【００２３】図６、図７に示すように、連結部１１は、
パイプ材で成る軸部材１５に、主仕口部１０、副仕口部
１０Ａ、中間連結部１０Ｔ等を溶着等によって一体化し
た複合継手状に構成されている。各仕口部１０，１０
Ａ，１２には、丸太６〜８における略半円筒に形成され
た端部を載置可能な半円状の受け板１７が固着してあ
り、ボルト連結による丸太組付け時に丸太を位置決めで
きるようにしてある。As shown in FIGS. 6 and 7, the connecting portion 11
The main joint portion 10, the sub-joint portion 10A, the intermediate connecting portion 10T, and the like are integrally formed on a shaft member 15 made of a pipe material by welding or the like. Each connection part 10,10
The semicircular receiving plate 17 on which the ends formed in the substantially semi-cylindrical shapes of the logs 6 to 8 can be placed is fixed to A and 12 so that the logs can be positioned when the logs are assembled by bolt connection. It is.
【００２４】中間連結部１０Ｔは、主丸太６の長手方向
中央に形成された面取り加工部６ａを連結するための一
対の取付けステー１４，１４と、これらの間に配置され
てターンバックル９の下端部にも固着される補強板１
９、これら三者に亘って固着される取付け座２０、横向
きボルト１６Ａや縦向きボルト１６Ｂ等といった各種補
助部材を用いて、主丸太６と軸部材１５とを強固に連結
一体化できるように構成されている。The intermediate connecting portion 10T is provided with a pair of mounting stays 14 for connecting the chamfered portions 6a formed in the center of the main log 6 in the longitudinal direction, and a lower end of the turnbuckle 9 disposed therebetween. Reinforcement plate 1 also fixed to the part
9. A configuration in which the main log 6 and the shaft member 15 can be firmly connected and integrated using various types of auxiliary members such as the mounting seat 20 fixed to all three members, the horizontal bolt 16A and the vertical bolt 16B, and the like. Have been.
【００２５】連結部１１の長さ及び付設される部品数
は、丸太トラス３の長手方向部位によって異なってい
る。すなわち、丸太トラス３の長手方向で端のものは、
アーチフレーム５の取付け片５ａ，５ａにピン装着する
ための長さの短い軸部材１５に、一対の主仕口部１０，
１０と、１個の副仕口部１０Ａとが一体形成された三口
仕口部ｍ（図５、図６参照）の状態で固着された小さな
部品に構成される。The length of the connecting portion 11 and the number of components to be provided differ depending on the longitudinal direction of the log truss 3. That is, the log truss 3 at the end in the longitudinal direction is
A shaft member 15 having a short length for attaching pins to the mounting pieces 5a, 5a of the arch frame 5 has a pair of main ports 10,
10 and one sub-portion 10A are formed into small parts that are fixed in a three-port connection portion m (see FIGS. 5 and 6) integrally formed.
【００２６】これに対して、丸太トラス３の長手方向で
中央の連結部１１は、左右方向で中央に位置する２組の
三口仕口部ｍ，ｍと、１個の主仕口部１０と１個の副仕
口部１０Ａとが一体形成された二口仕口部ｈ（図５、図
６参照）が計４組と、４組の中間連結部１０Ｔとが、長
さの長い軸部材１５に固着された大部品に構成されてい
る。On the other hand, the connecting portion 11 at the center in the longitudinal direction of the log truss 3 is composed of two sets of three-ports m, m located at the center in the left-right direction and one main port 10. A total of four pairs of two-port ports h (see FIGS. 5 and 6) integrally formed with one sub-portion 10A, and a shaft member having a long length of four pairs of intermediate connecting parts 10T. It is composed of a large part fixed to 15.
【００２７】図６，７に示すように、副連結部材１３
は、前記受け板１７が固着された副丸太７，８のボルト
連結用の仕口部１２の一対と、屋根パネル取付け用の支
持部１８とで構成されるとともに、ターンバックル９の
上端部を固着連結してある。つまり、副連結部材１３
は、ターンバックル９を介して軸部材１５に、すなわち
連結部１１に一体化されている。ターンバックル９は、
上バックル部９ａと、下バックル部９ｂとをネジ連結し
て成るものであり、丸太連結前の上下バックル部９ａ，
９ｂの相対回動操作によって、軸部材１５と副連結部材
１３との間隔を調節することができる。As shown in FIGS.
Is composed of a pair of connection portions 12 for bolt connection of the sub logs 7, 8 to which the receiving plate 17 is fixed, and a support portion 18 for attaching a roof panel. It is fixedly connected. That is, the sub-connecting member 13
Is integrated with the shaft member 15 via the turnbuckle 9, that is, with the connecting portion 11. Turnbuckle 9
The upper buckle portion 9a and the lower buckle portion 9b are connected by screws, and the upper and lower buckle portions 9a, 9a,
The distance between the shaft member 15 and the sub-connection member 13 can be adjusted by the relative rotation operation of 9b.
【００２８】各丸太６〜８と各仕口部１０，１０Ａ，１
２との連結構造を、主丸太６に関して説明する。図８，
９に示すように、主丸太６の端面６Ａを、仕口部１０へ
の当接面となるように平面状に加工してあり、この丸太
端面６Ａと仕口部１０の当接面材１０ｓとを、木口金属
板Ｓ１と隙間調整用金属スペーサＳ２とを介して対向配
置した状態で４本の連結ボルト２４を用いて螺着させ
る。Each log 6-8 and each connection part 10, 10A, 1
The connection structure with the main log 2 will be described with reference to the main log 6. FIG.
As shown in FIG. 9, the end face 6A of the main log 6 is formed into a flat shape so as to be a contact surface with the connection part 10, and the contact face material 10s between the log end face 6A and the connection part 10 is formed. Are screwed together with the four connection bolts 24 in a state where they are opposed to each other via the metal opening S1 and the gap adjusting metal spacer S2.
【００２９】連結ボルト２４は、両端にねじ切りされた
軸ボルトであり、主丸太６には、連結ボルト２４の全長
より長いボルト穴２５を、丸太端面６Ａから丸太長手方
向に沿って４箇所形成するとともに、ボルト内奥側に螺
装される角ナット２６を挿入自在とするナット穴２７
を、丸太側面に開口する状態で４箇所形成してある。
尚、ボルト穴２５とナット穴２７による応力集中を避け
るため、４個の連結ボルト２４のうちの２個ずつを長さ
の異なるものとして、ボルト穴２５の長さとナット穴２
７との位置の夫々を２種類に分けてある。The connecting bolt 24 is a shaft bolt threaded at both ends, and the main log 6 is provided with four bolt holes 25 longer than the entire length of the connecting bolt 24 along the log longitudinal direction from the log end face 6A. Also, a nut hole 27 that allows a square nut 26 screwed into the inner side of the bolt to be freely inserted.
Are formed at four locations in such a manner as to be open on the side surface of the log.
In order to avoid stress concentration due to the bolt hole 25 and the nut hole 27, two of the four connection bolts 24 are different in length, and the length of the bolt hole 25 and the nut hole 2 are different.
Each of the positions 7 and 7 is divided into two types.
【００３０】そして、連結ボルト２４の仕口部側端面
に、マイナスドライバー等の治具によってボルトの緊緩
操作（回動操作）を自在とするための治具嵌合用溝２８
を形成するとともに、ボルト穴２５に対応したボルト挿
通孔２９を当接面材１０ｓに４箇所形成する。尚、副仕
口部１０Ａにおける受け板１７は、丸太７，８の上側に
位置するようにしてあり、端面下端部が若干斜めカット
された第１及び第２副丸太７，８と主丸太６夫々の端部
を、上下の受け板１７，１７で挟み込んで連結する構造
としてある。A jig fitting groove 28 is formed on the end face of the connecting bolt 24 on the side of the connection portion so that the bolt can be freely loosened (turned) by a jig such as a flathead screwdriver.
Are formed, and four bolt insertion holes 29 corresponding to the bolt holes 25 are formed in the contact face member 10s. The receiving plate 17 in the sub-portion 10A is located above the logs 7 and 8, and the first and second sub-logs 7, 8 whose lower end portions are slightly obliquely cut and the main log 6 are formed. Each end is sandwiched between upper and lower receiving plates 17 and 17 to be connected.
【００３１】しかして、ナット穴２７に角ナット２６を
入れて、連結ボルト２４をボルト穴２５に挿入して締込
み側に回動することにより、角ナット２６を連結ボルト
２４に螺装することができ、かつ、連結ボルト２４を主
丸太６内に完全に埋設する状態を現出できる（図８参
照）。このボルト埋設状態の主丸太６を受け板１７に載
置した状態で一対の主仕口部１０，１０間には設置し、
それからボルト挿通孔２９を通して治具を治具嵌合用溝
２８に差し込んで回動操作することで、連結ボルト２４
の外端側ネジ部をボルト挿通孔２９より外方に抜き出し
移動させる。Then, the square nut 26 is screwed into the connecting bolt 24 by inserting the square nut 26 into the nut hole 27, inserting the connecting bolt 24 into the bolt hole 25, and turning to the tightening side. And the connecting bolt 24 can be completely embedded in the main log 6 (see FIG. 8). The main log 6 in which the bolts are buried is placed between the pair of main ports 10 in a state of being placed on the receiving plate 17,
Then, by inserting the jig into the jig fitting groove 28 through the bolt insertion hole 29 and rotating the jig, the connection bolt 24
Is pulled out from the bolt insertion hole 29 and moved.
【００３２】そして、抜き出された連結ボルト２４にナ
ット３０を螺着することにより、主丸太６と主仕口部１
０との連結一体化が行えるのである。尚、後述する「仮
り締め」とは、ナット３０を外れない程度に連結ボルト
２４に螺着させただけの状態のことを、かつ、「本締
め」とは、ナット３０を強く締め側に回動して完全に締
め切る状態のことを夫々意味している。Then, the nut 30 is screwed onto the connection bolt 24 that has been pulled out, so that the main log 6 and the main port 1 are connected.
The connection and integration with 0 can be performed. Note that “temporary tightening” described below refers to a state in which the nut 30 is simply screwed to the connecting bolt 24 to such an extent that the nut 30 does not come off, and “final tightening” means that the nut 30 is strongly turned to the tightening side. It means the state of moving and closing completely.
【００３３】次に、丸太トラス３の作成方法と設置方法
について説明する。前述したように、丸太トラス３は１
６組の三角トラスｔ１〜ｔ４から成るが、これら三角ト
ラスｔ１〜ｔ４は独立したものではなく、軸部材１５を
介してすべて繋がっているため、組付け方法としては、
計９個の連結部１１に対して丸太６〜８を順次ボルト連
結して行くことになる。しかしながら、丸太トラス３は
言わば多結節構造体であり、しかも主な材料が丸太であ
ることから寸法精度が出難いので、各丸太６〜８と各仕
口部１０，１０Ａ，１２との連結ボルト２４を初めから
本締めすると組付けできない箇所が出てきて、丸太トラ
ス３を構成不能になることから、以下に述べる形成方法
が採られる。Next, a method of preparing and installing the log truss 3 will be described. As mentioned above, log truss 3 is 1
It consists of six sets of triangular trusses t1 to t4, but these triangular trusses t1 to t4 are not independent and are all connected via the shaft member 15, so that as an assembling method,
The logs 6 to 8 are sequentially bolted to the nine connecting portions 11 in total. However, the log truss 3 is a so-called multi-knot structure, and since the main material is a log, it is difficult to obtain dimensional accuracy. Therefore, the connecting bolts for connecting the logs 6 to 8 to the connection portions 10, 10A, and 12 are used. If the 24 is fully tightened from the beginning, some parts cannot be assembled and the log truss 3 cannot be constructed, so the following forming method is adopted.
【００３４】図１０（イ）に示すように、上面に軸部材
１５を載置する半円状の円弧受け部２１が形成され、か
つ、５種類の高さを有した計９個の架台ｋ１〜ｋ５を作
業台２２に所定間隔を空けて並べ、各架台ｋ１〜ｋ５の
円弧受け部２１に、対応する連結部１１を載置する。As shown in FIG. 10A, a semicircular arc receiving portion 21 on which the shaft member 15 is mounted is formed on the upper surface, and a total of nine mounts k1 having five different heights are provided. To k5 are arranged on the work table 22 at a predetermined interval, and the corresponding connecting portions 11 are placed on the arc receiving portions 21 of the respective frames k1 to k5.
【００３５】そして、図１０（ロ）に示すように、一つ
飛ばして隣合う連結部１１，１１に亘って、主丸太６，
６を仮締め連結するとともに、副連結部材１３を用いて
第１及び第２副丸太８も仮締め連結し、かつ、ターンバ
ックル９も仮締め連結する。つまり、仕口部１０，１０
Ａを備えた連結部１１の一対と主丸太６とを、この主丸
太６の両端部に各仕口部１０，１０Ａ，１２を仮締めす
ることで連結するとともに、主丸太６一端の連結部１１
に連結される第１副丸太７と、主丸太６他端の連結部１
１に連結される第２副丸太８とも仮締め連結し、かつ、
副連結部材１３とブラケット板２０とに亘ってターンバ
ックル９も仮締め連結して、三角形状の仮締め構造材ｔ
( 仮締め状の三角トラスｔ１〜ｔ４）を形成する。Then, as shown in FIG. 10 (b), the main logs 6,
6 and the first and second sub logs 8 are also temporarily fastened and connected, and the turnbuckle 9 is temporarily fastened and connected using the auxiliary connecting member 13. That is, the connection part 10, 10
A, and a pair of the connecting portions 11 provided with A and the main log 6 are connected to both ends of the main log 6 by temporarily fastening the connection portions 10, 10 </ b> A, 12, and a connecting portion at one end of the main log 6. 11
The first sub log 7 connected to the main log 6 and the connecting portion 1 at the other end of the main log 6
Temporarily fastened to the second secondary log 8 connected to 1, and
The turnbuckle 9 is also temporarily tightened and connected over the sub-connecting member 13 and the bracket plate 20 to form a triangular temporary tightening structural material t.
(Temporarily tightened triangular trusses t1 to t4) are formed.
【００３６】このように、各仕口部１０，１０Ａ，１２
と各丸太６〜８との連結ボルト２４を仮締めすることに
より、各部に寸法誤差があっても全て三角トラスｔ１〜
ｔ４としての仮組付けが行えるので、図１１に示すよう
に、仮締め状態の丸太トラス３が現出される。すなわ
ち、計１６組の仮締め三角トラスｔ１〜ｔ４を、主丸太
６端の連結部１１を介して主丸太６の長手方向、並びに
左右方向に連ねて連結し、これら連結された仮締め三角
トラスｔ１〜ｔ４のうちの隣合うものどうしを、それら
の主丸太６の長手方向中央部に連結部１１( 軸部材１
５）が連結される状態に仮締め三角トラスｔ１〜ｔ４を
介して連結し、かつ、主丸太６における連結部１１の連
結箇所であるブラケット板２０と、第１副丸太７と第２
副丸太８との連結箇所である副連結部材１３とをターン
バックル（連結部材の一例）９で連結して、仮締め丸太
トラス３に形成する。As described above, each of the ports 10, 10A, 12
By temporarily tightening the connection bolts 24 between the trusses 6 and 8, even if there is a dimensional error in each part, all triangular trusses t1
Since the temporary assembly at t4 can be performed, the log truss 3 in the temporarily tightened state appears as shown in FIG. That is, a total of 16 sets of temporarily tightened triangular trusses t1 to t4 are connected in the longitudinal direction of the main log 6 and in the left-right direction via the connecting portion 11 at the end of the main log 6, and these connected temporarily tightened triangular trusses are connected. Adjacent ones of t1 to t4 are connected to the connecting portion 11 (shaft member 1) at the longitudinal center of the main logs 6.
5) are connected via the temporarily tightened triangular trusses t1 to t4 in a connected state, and the bracket plate 20, which is the connection point of the connection portion 11 in the main log 6, the first sub log 7, and the second
A sub-connecting member 13 which is a connecting portion with the sub-log 8 is connected with a turnbuckle (an example of a connecting member) 9 to form a temporarily tightened log truss 3.
【００３７】しかしながらこの仮締め状態では、各連結
部１１，１１間に現れる長い側の寸法誤差の総和によ
り、丸太トラス３としての長さは長い目になるので、図
１０（ロ）に示すように、両端の連結部１１，１１を第
１架台ｋ１に載置した状態に固定すると、中間の連結部
１１は円弧受け部２１から上方に浮いてしまい、正規の
位置が出ない。However, in this temporarily tightened state, the length of the log truss 3 becomes long due to the sum of the dimensional errors on the long side appearing between the connecting portions 11, 11, and as shown in FIG. If the connecting portions 11, 11 at both ends are fixed in a state of being placed on the first frame k1, the intermediate connecting portion 11 floats upward from the circular arc receiving portion 21, and the proper position does not come out.
【００３８】そこで、図１１に示すように、長手方向中
央の一対の第１三角トラスｔ１，ｔ１の主丸太６，６に
亘って作用するようにチェーン・ワイヤーロープ等の吊
下げ部材２３ａを介連結ボルトして吊下げられた振動機
２３を作動させて、仮締め状態の丸太トラス３全体に振
動を付与する。振動により、各仕口部１０，１０Ａ，１
２に接当する各丸太６〜８の端面が、面接触状態となる
ように圧縮されるので、寸法が次第に短くなり、かつ、
各丸太６〜８と各仕口部１０，１０Ａ，１２とが広い面
で接触する状態に移行して行き、図１１に示すように、
全ての軸部材１５が円弧受け部２１に載置する正規の寸
法状態が現出されるようになる。Therefore, as shown in FIG. 11, a suspending member 23a such as a chain or wire rope is provided so as to act on the main logs 6, 6 of the pair of first triangular trusses t1, t1 at the center in the longitudinal direction. The vibrator 23 suspended by the connecting bolts is operated to apply vibration to the entire log truss 3 in the temporarily tightened state. By vibrating, each connection part 10, 10A, 1
Since the end faces of the logs 6 to 8 that are in contact with 2 are compressed so as to be in a surface contact state, the dimensions are gradually shortened, and
Each log 6 to 8 and each connection part 10, 10A, 12 are shifted to a state of contacting on a wide surface, and as shown in FIG.
The normal dimensional state in which all the shaft members 15 are placed on the arc receiving portion 21 appears.
【００３９】正規の寸法状態が現出されたら、振動機２
３の作動を停止して取り去り、仮り締め状態にある連結
ボルト２４を本締めすることにより、丸太トラス３の作
成作業が終了する。つまり、仮り締め構造体である仮り
締め丸太トラス３に振動を作用させて、連結部１１を受
止め部である円弧受け部２１に誘導した後に、各仕口部
１０，１０Ａ，１２と各丸太６〜８とを本締めするので
ある。When the normal dimensional condition appears, the vibrator 2
The operation of the log truss 3 is completed by stopping the operation of the log truss 3 and removing it, and by tightening the connection bolts 24 in the temporarily tightened state. In other words, the vibration is applied to the temporary fastening log truss 3 which is the temporary fastening structure to guide the connecting portion 11 to the arc receiving portion 21 which is the receiving portion, and then the respective connection portions 10, 10A, 12 and each log. 6 to 8 are fully tightened.
【００４０】そして、作成された丸太トラス３は、図１
２に示すように、トラバーサ３１を介してのクレーン等
の起重機による吊下げ状態で建築現場に運び、持ち上げ
て、両端の連結部１１，１１を、アーチフレーム５の取
付け片５ａ，５ａに連結して設置するようになる。この
設置作業を、必要となる丸太トラス３の数の分行うこと
により、ドーム屋根Ｒの骨組みを完成させることができ
る。The created log truss 3 is shown in FIG.
As shown in FIG. 2, it is carried to a construction site in a suspended state by a crane or other hoist via a traverser 31, lifted, and the connecting portions 11, 11 at both ends are connected to the mounting pieces 5 a, 5 a of the arch frame 5. Will be installed. By performing this installation work for the number of necessary log trusses 3, the framework of the dome roof R can be completed.
【００４１】次に、丸太トラス（構造部材ＫＢの一例）
３の両スチール骨組み（取付対象Ｔ，Ｔの一例）１，１
への設置方法について詳述すると、図１２に示すよう
に、左右両端の連結部１１，１１部位に繋がれた２組の
第１ワイヤ３２，３２、左右の第２三角トラスｔ２夫々
における頂部の仕口部１２，１２部位に繋がれた２組の
第２ワイヤ３３，３３、及び、第４三角トラスｔ４頂部
の仕口部１２に繋がれた１組の第３ワイヤ３４による計
５組の第１〜第３ワイヤ（吊下げ手段ＴＳの一例）３２
〜３４を用いて、丸太トラス３をトラバーサ３１に吊下
げてある。Next, a log truss (an example of a structural member KB)
3. Both steel frames (examples of mounting objects T, T) 1, 1
In detail, as shown in FIG. 12, two sets of the first wires 32, 32 connected to the connecting portions 11, 11 on the left and right ends, and the left and right second triangular trusses t2, as shown in FIG. A total of five sets are provided by two sets of second wires 33, 33 connected to the connection parts 12, 12 and one set of third wires 34 connected to the connection part 12 at the top of the fourth triangular truss t4. First to third wires (an example of the suspending means TS) 32
The log truss 3 is hung on the traverser 31 by using .about.34.
【００４２】各ワイヤ３２〜３４の夫々には、必要に応
じてその吊下げ長さを増減調節自在な長さ調節機構ｎを
装備してある。長さ調節機構ｎは、例えば、これとトラ
バーサ３１とを連結する上部ワイヤ３２ａ〜３４ａの巻
取り及び巻き解し自在なウィンチや、そのウィンチの正
逆駆動及び停止等を遠隔操作自在なもの等、種々のもの
が可能である。次に、スパン長さの調節例を説明する。Each of the wires 32 to 34 is provided with a length adjusting mechanism n capable of adjusting the suspension length of the wires 32 to 34 as necessary. The length adjusting mechanism n is, for example, a winch capable of winding and unwinding the upper wires 32a to 34a connecting the traverser 31 to the traverser 31 and a mechanism capable of remotely controlling forward / reverse driving and stopping of the winch. , Various things are possible. Next, an example of adjusting the span length will be described.
【００４３】−第１調節例− 図１２に示す吊下げ状態において、丸太トラス３での連
結箇所に応じた荷重条件で、５箇所の第１〜第３ワイヤ
３２〜３４を介してトラバーサ３１に吊下げている基本
吊下げ状態の丸太トラス３両連結部１１，１１間の取付
側スパン（第１スパンＤ１の一例）Ｌ１が、取付対象で
ある両スチール骨組み１のアーチフレーム５の取付け片
（被連結部の一例）５ａ、５ａ間の被取付側スパン（第
２スパンＤ２の一例）Ｌ２よりも短い（Ｌ１＜Ｌ２）場
合（図１３の仮想線参照）には、次のように対処する。-First Adjustment Example- In the suspended state shown in FIG. 12, the traverser 31 is connected to the traverser 31 via the first to third wires 32 to 34 at five places under load conditions corresponding to the connection points on the log truss 3. The mounting side span (an example of a first span D1) L1 between the two connected portions 11, 11 of the log truss 3 in the basic suspended state is a mounting piece of the arch frame 5 of the steel frame 1 to be mounted ( (Example of connected portion) When the attachment-side span between 5a and 5a (example of second span D2) is shorter than L2 (L1 <L2) (see the phantom line in FIG. 13), the following measures are taken. .
【００４４】即ち、図１３に示すように、中央側３箇所
のワイヤ、即ち、２組の第２ワイヤ３３，３３と第３ワ
イヤ３４夫々を、それらの長さ調節機構ｎを操作し上部
ワイヤ３３ａ，３３ａ，３４ａを伸ばしてより長く調整
する。これによると、各ワイヤ３２〜３４の荷重バラン
スが崩れて、両端の第１ワイヤ３２，３２の荷重負担が
増大するので、丸太トラス３の自重によってその中央側
部分が撓み変形して垂れ下がった調節姿勢に変形するよ
うになり、その結果、取付側スパンＬ１を伸ばして被取
付側スパンＬ２に合致させることができるのである。That is, as shown in FIG. 13, three wires at the center side, that is, two sets of the second wires 33, 33 and the third wire 34 are respectively connected to the upper wire by operating the length adjusting mechanism n. 33a, 33a and 34a are extended and adjusted longer. According to this, the load balance of each of the wires 32 to 34 is lost, and the load burden of the first wires 32, 32 at both ends increases, so that the center portion of the log truss 3 is bent and deformed and hangs down due to its own weight. As a result, the attachment side span L1 can be extended to match the attachment side span L2.
【００４５】−第２調節例− 図１２に示す吊下げ状態において、取付側スパンＬ１が
被取付側スパンＬ２よりも短い場合（図１４の仮想線参
照）は、図１４に示すように、両端の第１ワイヤ３２，
３２の吊下げ長さをより短く調整して、各第１ワイヤ３
２，３２の荷重負担を増すことで、取付側スパンＬ１を
伸ばして被取付側スパンＬ２に合致させるという、結果
的に図１３に示す場合と同様の作用を得るようにしても
良い。この両１ワイヤ３２，３２の吊下げ長さを短くす
る方法では、両連結部１１，１１の高さ位置が若干高く
なるが、前述した第２ワイヤと第３ワイヤ３３，３３，
３４を短くする方法では、両連結部１１，１１の高さ位
置が殆ど変わらない点で好ましいものである。Second Example of Adjustment In the hanging state shown in FIG. 12, when the attachment side span L1 is shorter than the attachment side span L2 (see the phantom line in FIG. 14), as shown in FIG. The first wire 32,
32, the suspension length of each first wire 3 is adjusted to be shorter.
By increasing the load burden on the mounting side 2 and 32, the attachment side span L1 is extended to match the attachment side span L2. As a result, the same operation as the case shown in FIG. 13 may be obtained. In the method of shortening the suspension length of the two wires 32, 32, the height positions of the connecting portions 11, 11 are slightly increased, but the second wire and the third wires 33, 33,
The method of shortening 34 is preferable in that the height position of both connecting portions 11, 11 hardly changes.
【００４６】−第３調節例− 図１２に示す吊下げ状態において、取付側スパンＬ１が
被取付側スパンＬ２よりも長い場合（図１５の仮想線参
照）には、図１５に示すように、中央側３箇所の第２ワ
イヤ３３，３３及び第３ワイヤ３４の吊下げ長さをより
短く調整する、或いは、両側の第１ワイヤ３２，３２の
吊下げ長さをより長く調整することにより、丸太トラス
３の両端側を垂れ下がらせて取付側スパンＬ１を短く
し、被取付側スパンＬ２に合致させることができる。
又、図示しないが、中央１組の第３ワイヤ３４のみをよ
り短くするか、或いは第１及び第２ワイヤ３２，３３の
４組の吊下げ長さをより長くし、両端を大きく撓ませて
取付側スパンＬ１を短くすることも可能である。Third Example of Adjustment In the hanging state shown in FIG. 12, when the attachment-side span L1 is longer than the attachment-side span L2 (see the phantom line in FIG. 15), as shown in FIG. By adjusting the suspension length of the second wires 33, 33 and the third wire 34 at the three central positions to be shorter, or by adjusting the suspension length of the first wires 32, 32 at both sides to be longer, Both ends of the log truss 3 are hung down to shorten the attachment-side span L1 and to match the attachment-side span L2.
Further, although not shown, only the third set of the third wires 34 at the center is made shorter, or the suspension length of the four sets of the first and second wires 32 and 33 is made longer, and both ends are largely bent. It is also possible to shorten the attachment side span L1.
【００４７】〔別実施形態〕図１６に示すように、３組
の吊下げ手段３８，３９，３８（ＴＳ）を介してトラバ
ーサ３１に吊下げられた長さの長いＨ型鋼等の横長部材
３５において、その両端の連結部３６，３６の取付側ス
パン（第１スパンＤ１の一例）Ｌ３の長さが、取付対象
ＴＴの被連結部３７，３７の被取付側スパン（第２スパ
ンＤ２の一例）Ｌ４の長さよりも長い場合（Ｌ３＞Ｌ
４）には、中央の吊下げ手段３９の長さ調節機構ｎを操
作してその吊下げ長さを短くして、横長部材３５をその
中央部が引張り上げられた側面視で凸状に撓ませること
により、取付側スパンＬ３を短縮化して被取付側スパン
Ｌ４の長さに合致させることができる。[Another Embodiment] As shown in FIG. 16, a horizontally elongated member 35 such as a long H-shaped steel suspended from the traverser 31 via three sets of suspension means 38, 39, 38 (TS). , The length of the attachment-side span (an example of a first span D1) L3 of the connecting portions 36, 36 at both ends thereof is equal to the length of the attachment-side span of the connected portions 37, 37 of the attachment target TT (an example of the second span D2). ) When longer than the length of L4 (L3> L
In 4), the length of the suspension is shortened by operating the length adjusting mechanism n of the suspension means 39 at the center, and the laterally elongated member 35 is bent in a convex shape in a side view with its central portion pulled up. By doing so, the length of the attachment-side span L3 can be shortened to match the length of the attachment-side span L4.
【００４８】又、この横長部材３５の場合では、両端の
吊下げ手段３８，３８の長さ調節機構ｎを操作してその
吊下げ長さを短くし、横長部材（構造部材ＫＢの一例）
３５の中央部が垂れ下がる側面視で凹状に撓ませること
により、取付側スパンＬ３を短縮化しても良い。更に、
中央の吊下げ手段３９をより長く調節することで、中央
部を垂れ下がらせて同様の作用を得る方法、或いは、両
端の吊下げ手段３８，３８をより長く調節して、両端が
垂れ下がるように撓ませることで同様の作用を得る方法
も可能である。つまり、一直線状の構造部材を設置する
場合は、基本状態が最も取付側スパンが長くなるので、
吊下げ手段の如何なる長さ調節でも取付側スパンを短く
する調整が行えるものとなる。In the case of the horizontally long member 35, the hanging length is shortened by operating the length adjusting mechanism n of the hanging means 38 at both ends, and the horizontally long member (an example of the structural member KB).
The mounting-side span L3 may be shortened by bending the central portion of the 35 in a concave shape in a side view in which it hangs down. Furthermore,
A method of obtaining the same effect by hanging down the central portion by adjusting the center hanging means 39 longer, or adjusting the hanging means 38, 38 at both ends longer so that both ends are hung. It is also possible to obtain a similar effect by bending. In other words, when installing a linear structural member, the basic state has the longest installation side span,
Any adjustment of the length of the suspension means can be adjusted to shorten the mounting-side span.
【００４９】図１７に示すように、横方向両端部が横方
向中間部よりも上方に位置する略凹状の側面視形状を有
したトラス（構造部材ＫＢの一例）４０を、４箇所の吊
下げ手段４１，４２，４２，４１（ＴＳ）を介してトラ
バーサ３１に吊下げたものにおいて、両端の連結部４
３，４３の取付側スパン（第１スパンＤ１の一例）Ｌ５
が、取付対象ＴＴの両被連結部４４，４４の被取付側ス
パン（第２スパンＤ２の一例）Ｌ６よりも長い場合に
は、中央２組の吊下げ手段４２，４２の吊下げ長さを長
くして、中央部が垂れ下がるように撓み変形させること
で取付側スパンＬ５を、被取付側スパンＬ６に合致させ
るべく短縮化することができる。又、両端２組の吊下げ
手段４１，４１の吊下げ長さを短くして、トラス４０の
両端部をより上方に持ち上がるように撓ませて取付側ス
パンＬ５を短くし、被取付側スパンＬ６に合致させるこ
ともできる。As shown in FIG. 17, a truss (an example of a structural member KB) 40 having a substantially concave side view shape in which both lateral ends are located above the lateral middle portion is suspended at four places. In the apparatus suspended on the traverser 31 via the means 41, 42, 42, 41 (TS), the connecting portions 4
3, 43 mounting side spans (an example of the first span D1) L5
Is longer than the attachment-side span (an example of the second span D2) L6 of both the connection portions 44, 44 of the attachment target TT, the suspension length of the two suspension units 42, 42 at the center is increased. By making the length longer and deforming so that the central portion hangs down, the attachment-side span L5 can be shortened to match the attachment-side span L6. Further, the suspension length of the two sets of suspension means 41, 41 at both ends is shortened, and both ends of the truss 40 are bent so as to be lifted upward, thereby shortening the attachment-side span L5, and attaching the attachment-side span L6. Can also be matched.
【００５０】図１８に示すように、図１７に示す側面視
略凹状の取付側スパンＬ５が被取付側スパンＬ６よりも
短い場合において、中央２組の吊下げ手段４２，４２の
吊下げ長さを短くするか、或いは、両端２組の吊下げ手
段４１，４１の吊下げ長さを長くすることにより、取付
側スパンＬ５を長くして被取付側スパンＬ６に合致させ
ることもできる。As shown in FIG. 18, when the installation-side span L5 having a substantially concave shape as viewed in side view shown in FIG. 17 is shorter than the installation-side span L6, the suspension length of the two sets of suspension means 42, 42 at the center. , Or by increasing the suspension length of the two pairs of suspension means 41, 41, the attachment-side span L5 can be lengthened to match the attachment-side span L6.
【００５１】以下、参考として記載するが、振動機２３
を用いて仮締め状態の丸太トラス３に振動を付与する方
法（図１１参照）を、図１９に示すように、吊下げ支持
された起振装置４５を丸太トラス３の複数箇所に作用さ
せる方法に換えても良い。即ち、第１副丸太７と第２副
丸太８とを連結する仕口部１２の左右方向で隣合うもの
どうしに亘ってアングル材４６等を架設し、図外のクレ
ーンで吊下げ支持されている起振装置４５をアングル材
４６に連結してから、起振装置４５を起動させるのであ
る。The vibrator 23 will be described below for reference.
As shown in FIG. 19, a method of applying vibration to the log truss 3 in a temporarily tightened state by using the method shown in FIG. May be replaced with That is, an angle member 46 or the like is erected between the left and right sides of the connecting portion 12 connecting the first sub log 7 and the second sub log 8 and suspended by a crane (not shown). After the vibrating device 45 is connected to the angle member 46, the vibrating device 45 is activated.
【００５２】起振作用を付与する箇所は、図１９示すよ
うに、両第２三角トラスｔ２，ｔ２と、第４三角トラス
ｔ４との３箇所の他、全ての三角トラスｔ１〜ｔ４とす
るものでも良く、作用箇所が多いほど望ましい結果が得
られる。又、三角トラスｔ１〜ｔ４を作成する段階でも
この起振装置４５を用いて振動を与えることにより、木
材と仕口部とのなじみが良くなって、実質的に強度アッ
プされた三角トラスｔ１〜ｔ４を得ることができる。As shown in FIG. 19, the vibrating action is applied to all the triangular trusses t1 to t4 in addition to the three second trusses t2 and t2 and the fourth triangular truss t4. However, the greater the number of action points, the more desirable results can be obtained. At the stage of forming the triangular trusses t1 to t4, the vibration is applied by using the vibrating device 45, so that the fitting between the wood and the connection part is improved, and the triangular trusses t1 to t1 having substantially increased strength are provided. t4 can be obtained.
【００５３】図２０に示すように、起振装置４５は、ク
レーンのフック５１に吊下げされる略二股状の支持部４
７と、この支持部４７に一対のコイルバネ機構４８，４
８を介して吊設される起振部４９と、アングル材４６等
を挟持支持自在なチャック部５０とを備えて構成されて
いる。振動に伴なって丸太トラス３が下降すると、その
分コイルバネ機構４８が伸張することで自動的に対処さ
れる。As shown in FIG. 20, the vibrating device 45 includes a substantially bifurcated support portion 4 suspended from a hook 51 of a crane.
7 and a pair of coil spring mechanisms 48, 4
The vibrating portion 49 is interposed between the vibrating portion 49 and the chuck portion 50 which can hold and support the angle member 46 and the like. When the log truss 3 descends due to the vibration, the coil spring mechanism 48 is extended by that amount to automatically deal with it.
【図面の簡単な説明】[Brief description of the drawings]
【図１】スポーツセンター全体の形状を示す側面図FIG. 1 is a side view showing the overall shape of a sports center.
【図２】ドーム屋根の内部構造を示す側面図FIG. 2 is a side view showing the internal structure of the dome roof.
【図３】ドーム屋根の内部構造を示す正面図FIG. 3 is a front view showing the internal structure of the dome roof.
【図４】丸太トラスの構造を示す側面図FIG. 4 is a side view showing the structure of a log truss.
【図５】丸太トラスの構造を示し、（イ）は第１，２丸
太部分を示す平面図、（ロ）は主丸太部分を示す平面図FIG. 5 shows the structure of a log truss, (a) is a plan view showing first and second log portions, and (b) is a plan view showing a main log portion.
【図６】三角トラスを示す側面図FIG. 6 is a side view showing a triangular truss.
【図７】連結部材中間部、及び副連結部材部分の構造を
示す正面図と側面図FIGS. 7A and 7B are a front view and a side view showing a structure of a connecting member intermediate portion and a sub-connecting member portion.
【図８】丸太と仕口部との連結構造を示す断面側面図FIG. 8 is a sectional side view showing a connection structure between a log and a connection portion.
【図９】丸太と仕口部との連結構造を示す斜視図FIG. 9 is a perspective view showing a connection structure between a log and a connection portion.
【図１０】丸太トラスの作成方法を示す作用図FIG. 10 is an operation diagram showing a method of creating a log truss.
【図１１】丸太トラスの作成方法における振動付与工程
を示す作用図FIG. 11 is an operation diagram showing a vibration imparting step in a method for producing a log truss.
【図１２】丸太トラスの設置状況を示す側面図FIG. 12 is a side view showing the installation status of a log truss.
【図１３】丸太トラスにおけるスパンの第１調節例を示
す作用図FIG. 13 is an operation diagram showing a first example of span adjustment in a log truss.
【図１４】丸太トラスにおけるスパンの第２調節例を示
す作用図FIG. 14 is an operation diagram showing a second example of span adjustment in a log truss.
【図１５】丸太トラスにおけるスパンの第３調節例を示
す作用図FIG. 15 is an operation diagram showing a third example of span adjustment in a log truss.
【図１６】横長部材のスパン調節前の状況を示す側面図FIG. 16 is a side view showing a state before the span adjustment of the horizontally long member.
【図１７】凹状トラスにおけるスパンの調節例を示す作
用図FIG. 17 is an operational diagram showing an example of span adjustment in a concave truss.
【図１８】凹状トラスにおけるスパンの別調節例を示す
作用図FIG. 18 is an operation diagram showing another example of adjusting the span of the concave truss.
【図１９】振動付与工程の別例を示す作用図FIG. 19 is an operation view showing another example of the vibration applying step.
【図２０】図１９に示す起振装置の正面図FIG. 20 is a front view of the vibration generator shown in FIG. 19;
３１ トラバーサ ＫＢ 構造部材 ＴＳ 吊下げ手段 ＴＴ 取付対象 Ｄ１ 第１スパン Ｄ２ 第２スパン ｒ 連結部 ｆ 被連結部 31 Traverser KB Structural member TS Suspension means TT Attachment target D1 First span D2 Second span r Connecting part f Connected part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中野 裕久 愛知県名古屋市中区錦一丁目18番22号 株 式会社竹中工務店名古屋支店内 Ｆターム(参考） 2E174 AA04 BA03 CA03 CA38 DA08 DA18 DA21 DA37 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hirohisa Nakano 1-18-22 Nishiki, Naka-ku, Nagoya-shi, Aichi F-term in Nagoya Branch of Takenaka Corporation (Reference) 2E174 AA04 BA03 CA03 CA38 DA08 DA18 DA21 DA37
Claims (2)
箇所の吊下げ手段を用いてトラバーサに吊下げ、このト
ラバーサによる吊下げ状態の前記構造部材を取付対象に
移動させてから、前記構造部材における横方向の両端側
夫々の連結部を前記取付対象に連結する構造部材の設置
方法であって、 前記吊下げ手段を、互いに一横方向に距離を隔てた３箇
所以上に配備し、 前記吊下げ状態における前記両連結部間の第１スパン
と、前記取付対象における前記両連結部に対応した両被
連結部間の第２スパンとが異なるときには、いずれかの
吊下げ手段の吊下げ長さを変更して前記構造部材を撓ま
せることにより、前記両スパンを合致させる構造部材の
設置方法。1. A structural member is suspended on a traverser by using a plurality of suspending means at a plurality of laterally spaced distances, and after moving the structural member suspended by the traverser to an object to be mounted, What is claimed is: 1. A method of installing a structural member for connecting respective connecting portions at both ends in a lateral direction of a structural member to the object to be attached, wherein the suspending means are arranged at three or more places separated from each other by one lateral direction, When the first span between the two connecting portions in the suspended state is different from the second span between the two connected portions corresponding to the two connecting portions in the mounting target, suspension of any of the suspending means is performed. A method of installing a structural member that matches the two spans by changing the length and bending the structural member.
向両端部が横方向中間部よりも下方に位置する略凸状の
場合において、 前記構造部材の側面視略凸状形状を保持しながら複数の
前記吊下げ手段で吊下げた状態で、前記第１スパンが前
記第２スパンよりも短いときには、前記吊下げ手段のう
ちの前記一横方向の中央部に位置する中央部側吊下げ手
段の吊下げ長さをより長く調整するか、又は前記一横方
向の両端部に位置する端部側吊下げ手段の吊下げ長さを
より短く調整し、前記第１スパンが前記第２スパンより
も長いときには、前記中央部側吊下げ手段の吊下げ長さ
をより短く調整するか、又は前記端部側吊下げ手段の吊
下げ長さをより長く調整する請求項１に記載の構造部材
の設置方法。2. In a case where the side view of the structural member has a substantially convex shape in which both lateral end portions are located below a middle portion in the horizontal direction, the structural member holds the substantially convex shape in a side view. When the first span is shorter than the second span in a state of being suspended by the plurality of suspending means, a central part suspension located at the central part in the lateral direction of the suspending means. The suspension length of the means is adjusted to be longer, or the suspension length of the end side suspension means located at both ends in the one lateral direction is adjusted to be shorter, and the first span is adjusted to the second span. 2. The structural member according to claim 1, wherein when the length is longer, the suspension length of the center-side suspension means is adjusted to be shorter, or the suspension length of the end-side suspension means is adjusted to be longer. Installation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000221755A JP4471468B2 (en) | 2000-07-24 | 2000-07-24 | How to install structural members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000221755A JP4471468B2 (en) | 2000-07-24 | 2000-07-24 | How to install structural members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002038717A true JP2002038717A (en) | 2002-02-06 |
| JP4471468B2 JP4471468B2 (en) | 2010-06-02 |
Family
ID=18716105
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000221755A Expired - Fee Related JP4471468B2 (en) | 2000-07-24 | 2000-07-24 | How to install structural members |
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| Country | Link |
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| JP (1) | JP4471468B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746883A (en) * | 2015-03-27 | 2015-07-01 | 浙江中南建设集团钢结构有限公司 | Construction method for three-crane lifting installation used for bow-shaped space truss |
| CN112663967A (en) * | 2021-02-05 | 2021-04-16 | 浙江东南网架股份有限公司 | Comprehensive construction method for large cantilever annular steel structure ring corridor |
| CN113614323A (en) * | 2020-03-05 | 2021-11-05 | 广州建筑股份有限公司 | Unilateral sectional orbital transfer accumulated slippage construction method for unequal span structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243924A (en) * | 2013-04-25 | 2013-08-14 | 中国华冶科工集团有限公司 | Method for improving slippage resistance of cable clamp |
-
2000
- 2000-07-24 JP JP2000221755A patent/JP4471468B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746883A (en) * | 2015-03-27 | 2015-07-01 | 浙江中南建设集团钢结构有限公司 | Construction method for three-crane lifting installation used for bow-shaped space truss |
| CN113614323A (en) * | 2020-03-05 | 2021-11-05 | 广州建筑股份有限公司 | Unilateral sectional orbital transfer accumulated slippage construction method for unequal span structure |
| CN113614323B (en) * | 2020-03-05 | 2022-08-26 | 广州建筑股份有限公司 | Unilateral sectional orbital transfer accumulated slippage construction method for unequal span structure |
| CN112663967A (en) * | 2021-02-05 | 2021-04-16 | 浙江东南网架股份有限公司 | Comprehensive construction method for large cantilever annular steel structure ring corridor |
| CN112663967B (en) * | 2021-02-05 | 2022-04-15 | 浙江东南网架股份有限公司 | Comprehensive construction method for large cantilever annular steel structure ring corridor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4471468B2 (en) | 2010-06-02 |
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