JP2002004414A - Trussed girder structure and method of constructing it - Google Patents
Trussed girder structure and method of constructing itInfo
- Publication number
- JP2002004414A JP2002004414A JP2000195054A JP2000195054A JP2002004414A JP 2002004414 A JP2002004414 A JP 2002004414A JP 2000195054 A JP2000195054 A JP 2000195054A JP 2000195054 A JP2000195054 A JP 2000195054A JP 2002004414 A JP2002004414 A JP 2002004414A
- Authority
- JP
- Japan
- Prior art keywords
- chord
- diagonal
- truss beam
- steel block
- beam structure
- 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.)
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- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、土木・建築分野に
おける屋根構造等において使用されるトラス梁構造に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truss beam structure used for a roof structure in the field of civil engineering and construction.
【０００２】[0002]
【従来の技術】従来の土木・建築で用いられてきた立体
トラス構造には、第１従来例として、図２１、図２２に
示すシステムトラス構造と、第２従来例として、同様
に、図２３に示すような簡易トラスシステムも実用化さ
れている。一方、第３従来例として、図２４に示す溶接
トラス構造があり、いずれもトラス材として、最も効率
的な鋼管断面を使用している。図２１、図２２は、シス
テムトラス構造における屋根架構例１６を示し、屋根構
造１０は、支持構造８で支持されており、図２１（ａ）
は平面図、同（ｂ）は立面図、図２２は図２１の（イ）
部の拡大図（つまり、接合部詳細図）である。前記各図
では、パイプ状の構成軸部材（つまり、弦材）１およ
び、斜材２の接合部にノード１１を介在させ、弦材１と
斜材２を通しボルト５または溶接などにより固着するこ
とにより、立体骨組みを構成したシステムトラスであ
る。前記の通しボルト５により接合を行う場合、当該ボ
ルト５を外部より回転させるためのワッシャー６、通し
ボルト５を送り出すためのスプリング１２、応力伝達の
ためのエンドコーン７などが使用される。このシステム
トラスでは、弦材１および斜材２等すべての部材は、ノ
ード１１を介して接合されており、主応力方向の部材も
接点毎に分断されている。2. Description of the Related Art A conventional three-dimensional truss structure used in civil engineering and construction includes a system truss structure shown in FIGS. 21 and 22 as a first conventional example, and a system truss structure shown in FIG. A simple truss system as shown in Fig. 1 has also been put to practical use. On the other hand, as a third conventional example, there is a welded truss structure shown in FIG. 24, and each uses a most efficient steel pipe section as a truss material. 21 and 22 show a roof frame example 16 in the system truss structure, in which the roof structure 10 is supported by the support structure 8, and FIG.
Is a plan view, FIG. 22B is an elevation view, and FIG. 22 is FIG.
FIG. 4 is an enlarged view of a portion (that is, a detailed view of a joint portion). In each of the drawings, a node 11 is interposed between a pipe-shaped constituent shaft member (that is, a chord member) 1 and a diagonal member 2, and the chord member 1 and the diagonal member 2 are passed through and fixed by bolts 5 or welding. This is a system truss with a three-dimensional framework. When joining with the through bolt 5, a washer 6 for rotating the bolt 5 from the outside, a spring 12 for delivering the through bolt 5, an end cone 7 for transmitting stress, and the like are used. In this system truss, all members such as the chord 1 and the diagonal 2 are joined via the node 11, and the member in the main stress direction is also divided for each contact.
【０００３】また、図２３（ａ），（ｂ）は共に簡易ト
ラスシステムの接合部を示し、同図（ａ）は立面図、
（ｂ）は平面図である。この第２従来例では、弦材１お
よび斜材２の各端部をつぶして平面状にすることによっ
て通しボルト５、押さえ材６等により固着している。FIGS. 23 (a) and 23 (b) show joints of a simple truss system, and FIG. 23 (a) is an elevation view,
(B) is a plan view. In the second conventional example, each end of the chord member 1 and the diagonal member 2 is flattened to be fixed by a through bolt 5, a holding member 6, and the like.
【０００４】図２４は溶接トラス構造を用いた屋根架構
例１６ａを示すものであって、同図（ａ）は立面図、
（ｂ）は側面図、（ｃ）は同図（ａ）の（ロ）部の拡大
図（つまり、接合部詳細図）である。この第３従来例で
は、分岐継ぎ手溶接接合部４により、弦材１と斜材２を
接合して平面または立体トラス梁を構成し、これを支持
構造８間に並べて架け渡すことにより屋根構造１７を形
成する、溶接鋼管梁構造も一般的に使用されている。こ
の溶接トラス構造では、弦材１は主応力方向に連続であ
るが、各斜材２と弦材１は、分岐継ぎ手溶接接合部４と
いう複雑な３次元断面で接しており、溶接・組立てに際
しては高度な切断技術が要求される。FIG. 24 shows an example of a roof frame 16a using a welded truss structure. FIG.
(B) is a side view, and (c) is an enlarged view of the (b) portion of FIG. In the third conventional example, the chord member 1 and the diagonal member 2 are joined by the branch joint welded joint 4 to form a flat or space truss beam, and the truss beams are arranged and bridged between the support structures 8 to bridge the roof structure 17. A welded steel tube beam structure, which forms the following, is also commonly used. In this welding truss structure, the chord 1 is continuous in the main stress direction, but each diagonal 2 and the chord 1 are in contact with each other in a complicated three-dimensional cross section called a branch joint welding joint 4, and when welding and assembling. Requires advanced cutting technology.
【０００５】[0005]
【発明が解決しようとする課題】しかし、従来構造のう
ち図２１、図２２に示すシステムトラスにおいては、機
械加工による高精度の部材製作が可能な一方、支持構造
間を繋ぐ主応力方向において、弦材１が接点毎にノード
１１により分割され、主応力を伝達する接合部が多数必
要となり、材料・加工コストが増大するという問題があ
った。同様に、図２３に示す鋼管部材端部を平面状につ
ぶして各接点でボルト接合する簡易トラス構造も、支持
構造間を繋ぐ主応力方向において弦材１が接点毎にノー
ドにより分割され、主応力を伝達するボルト接合部が過
大となりスパンが限定される課題があった。However, in the system truss shown in FIGS. 21 and 22 among the conventional structures, it is possible to manufacture a high-precision member by machining, but in the main stress direction connecting the support structures, The chord material 1 is divided by the node 11 for each contact point, and a large number of joints for transmitting the main stress are required, and there is a problem that the material and processing costs increase. Similarly, the simple truss structure shown in FIG. 23 in which the ends of the steel pipe members are flattened and bolted at each contact point is also used. In the main stress direction connecting the support structures, the chord material 1 is divided at each contact point by a node, and There has been a problem that the bolt joint for transmitting the stress becomes excessively large and the span is limited.
【０００６】一方、図２４に示す、分岐継ぎ手溶接接合
部４により弦材１と斜材２を接合した溶接鋼管トラス構
造では、弦材断面が主応力方向に連続しているため接合
部重量は軽くて済むが、斜材２の分岐継ぎ手溶接接合部
４が複雑な３次元形状となるため、加工手間がかかり、
また、溶接歪みにより精度が出しにくい点、また工場で
組立てを行うため運搬上嵩ばるなどの問題点があった。
本発明の目的は前記のトラス梁構造において、主応力方
向の弦材は連続部材を使用し、しかも複雑な分岐継ぎ手
加工を必要とせず、かつ高精度で現場組立てが容易な構
造形式を提供することにある。On the other hand, in the welded steel pipe truss structure shown in FIG. 24 in which the chord member 1 and the diagonal member 2 are joined by the branch joint welding joint 4, the weight of the joint portion is reduced because the chord section is continuous in the main stress direction. Although it suffices to be light, since the branch joint welding joint 4 of the diagonal member 2 has a complicated three-dimensional shape, it takes a lot of processing time,
In addition, there is a problem that it is difficult to obtain accuracy due to welding distortion, and that it is bulky in transportation due to assembly at a factory.
An object of the present invention is to provide a truss beam structure in which a chord member in a main stress direction uses a continuous member, does not require complicated branch joint processing, and is highly accurate and easy to assemble on site. It is in.
【０００７】[0007]
【課題を解決するための手段】前記の課題を解決するた
め、本発明は、次のように構成する。第１の発明は、上
下弦材及び斜材により構成されるトラス梁において、前
記弦材と斜材との間に、弦材側に凹面を持ち、当該凹面
の一部又は全部が当該弦材の外周と接して固着され、前
記弦材側と反対の側に斜材の軸心に対して直交する斜材
接合用の平面、または球面或いは円筒面を持つ鋼製ブロ
ックを介在させ、弦材と鋼製ブロックおよび、鋼製ブロ
ックと斜材をそれぞれ固着することにより構成される。In order to solve the above-mentioned problems, the present invention is configured as follows. A first invention is a truss beam composed of upper and lower chords and diagonal members, and has a concave surface on the chord side between the chord members and diagonal members, and a part or all of the concave surface is the chord member. A steel block having a diagonal joining plane orthogonal to the diagonal axis or a spherical or cylindrical surface is interposed on the side opposite to the chord side and fixed to the outer periphery of the chord. And the steel block, and the steel block and the oblique material are fixed to each other.
【０００８】第２の発明は、第１発明のトラス梁構造に
おいて、弦材と斜材の一方または両方に鋼管又は角鋼管
を用いて構成される。According to a second aspect, in the truss beam structure according to the first aspect, a steel pipe or a square steel pipe is used for one or both of a chord member and a diagonal member.
【０００９】第３の発明は、第１または第２発明のトラ
ス梁構造において、鋼製ブロックと弦材は、当該弦材軸
に平行な直線で接し固着して構成されている。According to a third aspect of the present invention, in the truss beam structure according to the first or second aspect, the steel block and the chord are in contact and fixed by a straight line parallel to the chord axis.
【００１０】第４の発明は、第１〜第３発明のトラス梁
構造において、鋼製ブロックと弦材は溶接により固着し
て構成されている。According to a fourth aspect of the present invention, in the truss beam structure according to the first to third aspects, the steel block and the chord are fixed by welding.
【００１１】第５の発明は、第１〜第３発明のトラス梁
構造において、鋼製ブロックと斜材はボルトにより固着
して構成されている。According to a fifth aspect, in the truss beam structure according to the first to third aspects, the steel block and the diagonal member are fixed to each other with bolts.
【００１２】第６の発明は、第５発明のトラス梁構造に
おいて、斜材接合用のボルトを外部ワッシャーを回転さ
せることにより締結する構成とされている。According to a sixth aspect of the present invention, in the truss beam structure according to the fifth aspect of the present invention, the diagonal member joining bolt is fastened by rotating an external washer.
【００１３】第７発明のトラス梁の施工法は、第１〜６
のいずれかの発明のトラス梁構造における、前記鋼製ブ
ロックと弦材の固着を、斜材をガイドにして工場にて行
い、固着後斜材を分離して運搬し、現場で組み立てるこ
とを特徴とする。[0013] The method of constructing a truss beam according to the seventh invention is as follows.
In the truss beam structure of any one of the inventions, the steel block and the chord are fixed at the factory using the diagonal material as a guide, and after fixing, the diagonal material is separated and transported, and assembled at the site. And
【００１４】第８の発明は、複数の上下弦材及び斜材に
より構成されるトラス梁において、前記弦材と斜材との
間に、弦材側に凹面を持ち、当該凹面の一部または全部
が当該弦材の外周と接し、反対側に弦材と斜材接合用の
平行な平面を持つ鋼製ブロックを介在させ、弦材と鋼製
ブロック、鋼製ブロックと端部を平面状につぶした各斜
材を固着することにより構成される。According to an eighth aspect of the present invention, in a truss beam composed of a plurality of upper and lower chords and diagonal members, a concave surface is provided on the chord side between the chord members and the diagonal members, and a part of the concave surface or The whole is in contact with the outer periphery of the chord material, and a steel block having a parallel plane for joining the chord material and diagonal material is interposed on the opposite side, and the chord material and the steel block, the steel block and the end are made flat. It is constituted by fixing each crushed diagonal material.
【００１５】第９の発明は、第８発明の鋼製ブロックの
弦材と接する側と反対側に設ける、前記弦材と平行な斜
材接合用の平面に代えて、斜材と平行な斜材接合用の平
面を持つことを特徴とする。A ninth aspect of the present invention is a steel block according to the eighth aspect of the present invention, which is provided on a side opposite to a side in contact with the chord material, instead of a plane for joining the diagonal material parallel to the chord material. It has a flat surface for joining materials.
【００１６】第１０の発明は、第８または第９発明のト
ラス梁構造において、弦材及び斜材に鋼管又は角鋼管を
用いて構成される。According to a tenth aspect, in the truss beam structure according to the eighth or ninth aspect, a steel pipe or a square steel pipe is used for a chord and a diagonal.
【００１７】第１１の発明は、第８〜第１０発明のトラ
ス梁構造において、鋼製ブロックと弦材は弦材軸に平行
な直線で接し固着して構成される。According to an eleventh aspect of the present invention, in the truss beam structure according to the eighth to tenth aspects, the steel block and the chord are in contact with and fixed to a straight line parallel to the chord axis.
【００１８】第１２の発明は、第８〜第１１発明のトラ
ス梁構造において、鋼製ブロックと弦材は溶接により固
着して構成される。According to a twelfth aspect, in the truss beam structure according to the eighth to eleventh aspects, the steel block and the chord are fixed by welding.
【００１９】第１３の発明は、第８〜第１２発明のトラ
ス梁構造において、鋼製ブロックと各斜材はボルトによ
り固着して構成される。According to a thirteenth aspect, in the truss beam structure according to the eighth to twelfth aspects, the steel block and each diagonal member are fixed by bolts.
【００２０】第１４発明のトラス梁の施工法は、第８〜
１３発明のトラス梁構造における、各斜材の接合ボルト
は鋼製ブロックと弦材を固着する際にあらかじめ鋼製ブ
ロック内に設置されており、端部を平面状につぶした各
斜材を取り付けた後鋼製ブロック外部からナットを締め
ることによって一体化することを特徴とする。The method for constructing the truss beam of the fourteenth invention is described in the eighth to eighth aspects.
In the truss beam structure of the thirteenth invention, the connecting bolts of each diagonal member are previously installed in the steel block when fixing the steel block and the chord member, and each diagonal member whose end is crushed in a plane is attached. After that, they are integrated by tightening a nut from outside the steel block.
【００２１】[0021]
【作用】本発明では、上下弦材と斜材との間に、凹面で
弦材側面に接し、且つ弦材の側と反対側に各斜材との接
合面を持つ鋼製ブロックを介在させることにより、斜材
は第３従来例のような分岐継ぎ手接合を回避して、ボル
ト接合などシステムトラスの持つ簡便で精度のよい接合
方式とすることができ、しかも、弦材は第１従来例のよ
うなノードを使用しないから、連続材のままの効率的な
接合部を実現できる。According to the present invention, a steel block is provided between the upper and lower chord members and the diagonal members, the concave surface being in contact with the chord side surfaces, and the steel block having a joint surface with each diagonal member on the side opposite to the chord members. As a result, the diagonal member can avoid the branch joint as in the third conventional example, and can be a simple and accurate joining method of the system truss such as bolt connection, and the chord material is the first conventional example. Since no such nodes are used, it is possible to realize an efficient joint as a continuous material.
【００２２】また本発明において、鋼製ブロックと弦材
との間に働く力は弦材軸方向のせん断力のみなので、鋼
製ブロックと弦材との間の接合は、前述のように鋼製ブ
ロックの両端縁部端部の溶接または、ボルト接合のみで
よい。この溶接又はボルト接合は、精度良く機械加工さ
れた斜材をガイドにして工場で行い、溶接後は各部材を
分解して現地へ輸送することができるので、一体で輸送
する必要のある溶接トラス梁構造に比べて輸送効率も良
い。In the present invention, since the force acting between the steel block and the chord is only the shearing force in the axial direction of the chord, the joint between the steel block and the chord is made as described above. Only welding or bolting of both ends of the block may be sufficient. This welding or bolt joining is performed at the factory using a precision machined diagonal material as a guide, and after welding, each member can be disassembled and transported to the site, so welding truss that needs to be transported together The transportation efficiency is better than the beam structure.
【００２３】また、上下弦材と斜材との間に介在させる
鋼製ブロックの斜材との接合面を形成して、この接合面
に斜材の端部を当接してボルト接合し、あるいは、斜材
との接合面は必要に応じて弦材に対して平行な平面、ま
たは斜材に対して平行な平面とし、この接合用の平面
に、平面状につぶした斜材の端部を合わせて通しボルト
等で固着することにより、複雑な溶接開先の必要な各斜
材の分岐継ぎ手接合を回避し、同時に弦材は連続材のま
まの効率的で安価な接合部を実現できる。Also, a joint surface between the upper and lower chord members and the diagonal member is formed between the upper and lower chord members and the diagonal member, and the end of the diagonal member is brought into contact with the joint surface and bolted, or If necessary, the joint surface with the diagonal material shall be a plane parallel to the chord material, or a plane parallel to the diagonal material, and the end of the flattened diagonal material shall be By jointly fixing them with through bolts and the like, it is possible to avoid branch joint joining of each diagonal material that requires a complicated welding groove, and at the same time, it is possible to realize an efficient and inexpensive joint portion where the chord material is a continuous material.
【００２４】[0024]
【発明の実施の形態】次に、本発明の実施形態を図を参
照して詳細に説明する。Next, an embodiment of the present invention will be described in detail with reference to the drawings.
【００２５】図１〜図３は、実施形態１に係るトラス梁
構造を示し、図１（ａ）が弦材と斜材の接合部立面図、
図（ｂ）が図（ａ）の縦断側面図、図（ｃ）が鋼製ブロ
ックの斜視図、図２が、斜材と弦材を分離した状態の接
合部断面図、図３が、斜材と弦材を接合した状態の接合
部断面図である。FIGS. 1 to 3 show a truss beam structure according to the first embodiment. FIG. 1 (a) is an elevation view of a joint between a chord member and a diagonal member.
FIG. 2 (b) is a longitudinal side view of FIG. 2 (a), FIG. 2 (c) is a perspective view of a steel block, FIG. 2 is a cross-sectional view of a joint where a diagonal material and a chord material are separated, and FIG. FIG. 4 is a cross-sectional view of a joining portion in a state where a material and a chord material are joined.
【００２６】各図に示すように、鋼製ブロック３は凹面
１８と、弦材１の外周で、かつ弦材軸方向に平行な両端
接触縁２０を有し、さらに、前記凹面１８と反対の面に
は、斜材２の端部を面接合させるべく、当該斜材２の軸
線に対し直交する接合平面２１とこの接合平面２１の中
心部にボルト孔２２を有している。この接合平面２１と
ボルト孔２２の数は、鋼製ブロック３に接合する斜材２
の本数によって決まり、図示例では、鋼製ブロック３に
対し、四方から集まる４本の斜材２の端部を接合させる
べく、４つの接合平面２１およびボルト孔２２を有して
いる。鋼製ブロック３において、前記の接合平面２１を
形成したときは斜材２の端部も平面として、両接合平面
の面接触により鋼製ブロック３と斜材２を接合する（詳
細は後述する）。As shown in the figures, the steel block 3 has a concave surface 18 and contact edges 20 at both ends on the outer periphery of the chord 1 and parallel to the chord axial direction. The surface has a joining plane 21 orthogonal to the axis of the oblique member 2 and a bolt hole 22 at the center of the joining plane 21 so that the ends of the oblique member 2 are joined to each other. The number of the joining planes 21 and the number of the bolt holes 22 are determined by the number of the diagonal members 2 joined to the steel block 3.
In the illustrated example, the steel block 3 has four joint planes 21 and bolt holes 22 to join the ends of four diagonal members 2 gathered from all sides. In the steel block 3, when the joint plane 21 is formed, the end of the diagonal member 2 is also a plane, and the steel block 3 and the diagonal member 2 are joined by surface contact between both joint planes (details will be described later). .
【００２７】鋼製ブロック３は機械加工によって製作し
てもよく、また鋳造、鍛造によって製作しても良い。The steel block 3 may be manufactured by machining, or may be manufactured by casting or forging.
【００２８】鋼製ブロック３は図示のように、その凹面
１８を弦材１の外周面に貼り付くように配置しかつ、両
端接触縁２０を弦材軸方向に平行配置したうえ、この両
端接触縁２０と弦材１の外周面との間を溶接２３で接合
する。弦材１と鋼製ブロック３との溶接は、工場におい
て、鋼製ブロック３に斜材２を仮接合して、溶接位置を
合わせながら行う。As shown in the drawing, the steel block 3 is arranged so that its concave surface 18 is stuck to the outer peripheral surface of the chord material 1 and both end contact edges 20 are arranged in parallel with the chord material axial direction. The edge 20 and the outer peripheral surface of the chord 1 are joined by welding 23. The welding of the chord material 1 and the steel block 3 is performed in a factory by temporarily joining the diagonal member 2 to the steel block 3 and adjusting the welding position.
【００２９】前記の溶接が終わったならば、鋼製ブロッ
ク３から斜材２を分離し、現場へは、弦材１に鋼製ブロ
ック３が溶接された状態で運搬される。現場において、
弦材１を所定の配置に組んだうえ、弦材１に予め溶接さ
れている鋼製ブロック３に斜材２をねじまたは溶接で接
合する。After the welding is completed, the diagonal member 2 is separated from the steel block 3 and transported to the site in a state where the steel block 3 is welded to the chord member 1. In the field,
After assembling the string 1 in a predetermined arrangement, the diagonal 2 is joined to the steel block 3 previously welded to the string 1 by screwing or welding.
【００３０】図２、図３に示すように、斜材２を鋼製ブ
ロック３にボルト接合するには、図１８で説明したのと
同様に行う。つまり、鋼管製の斜材２の端部にエンドコ
ーン７を溶接２９で固着し、エンドコーン７の先端から
突出させたボルト５を、このボルト５に嵌合係止したワ
ッシャー６を外部から回すことで鋼製ブロック３のボル
ト孔２２に螺合して行う。As shown in FIGS. 2 and 3, the connection of the diagonal member 2 to the steel block 3 by bolts is performed in the same manner as described with reference to FIG. That is, the end cone 7 is fixed to the end of the steel pipe diagonal member 2 by welding 29, and the bolt 5 protruding from the end of the end cone 7 is turned from the outside with the washer 6 fitted and locked to the bolt 5. This is performed by screwing into the bolt hole 22 of the steel block 3.
【００３１】鋼製ブロック３の斜材２との接合面は、当
該斜材２の軸線に直交する接合平面２１に代えて、球
面、または円筒面としてもよく、その場合は、斜材２の
接合端面も球面、または円筒面とする。この接合面は、
機械加工などにより各部材方向に向けて加工されるた
め、斜材２と鋼製ブロック３とは常に共通の直交面を持
つ接合端部により接合できる。したがって、図１（ａ）
に示すように斜材２から鋼製ブロック３へ伝達せられる
圧縮力１３は、ワッシャー６の支圧により、引張り力１
４はボルト５の引張り力により弦材１に伝達され、合成
されたせん断力１５は溶接部２３により弦材１に伝達さ
れる。The joint surface of the steel block 3 with the diagonal member 2 may be a spherical surface or a cylindrical surface instead of the joint plane 21 perpendicular to the axis of the diagonal member 2. The joining end surface is also a spherical surface or a cylindrical surface. This joint surface
Since the diagonal member 2 and the steel block 3 can be always joined by a joint end portion having a common orthogonal plane because the members are processed in the direction of each member by machining or the like. Therefore, FIG.
As shown in the figure, the compressive force 13 transmitted from the diagonal member 2 to the steel block 3 is caused by the supporting force of the washer 6 and the tensile force 1
4 is transmitted to the chord 1 by the tensile force of the bolt 5, and the combined shearing force 15 is transmitted to the chord 1 by the welding portion 23.
【００３２】図４（ａ）、（ｂ）は他の実施形態を示
す。第１の実施形態として図１に示した例では、鋼製ブ
ロック３の凹面１８の曲率が弦材１の外周面の曲率と殆
ど同じであり、それ故に、凹面１８と弦材１の外周面が
略全面的に接していた。これに対し、他の実施形態とし
て図４（ａ）に示す例では、鋼製ブロック３の凹面１８
の曲率が、弦材外径の曲率よりも大きく、それ故に、凹
面１８と弦材１の外周面との間に、間隙２５が形成され
ていて、鋼製ブロック３は、その両端接触縁２０におけ
る溶接２３のみで弦材１の外周面に接合されている。こ
のような場合でも、両端接触縁２０における溶接２３に
よりせん断力は伝達可能であり、せん断力と弦材芯の偏
心を考慮すれば異なる径の弦材に対しても共通の鋼製ブ
ロック３を使用することができる。FIGS. 4A and 4B show another embodiment. In the example shown in FIG. 1 as the first embodiment, the curvature of the concave surface 18 of the steel block 3 is almost the same as the curvature of the outer peripheral surface of the chord 1, and therefore, the concave surface 18 and the outer peripheral surface of the chord 1 Was almost completely in contact. On the other hand, in the example shown in FIG. 4A as another embodiment, the concave surface 18 of the steel block 3 is used.
Is greater than the curvature of the outer diameter of the chord, so that a gap 25 is formed between the concave surface 18 and the outer peripheral surface of the chord 1, and the steel block 3 Are joined to the outer peripheral surface of the chord material 1 only by the welding 23. Even in such a case, the shear force can be transmitted by the welding 23 at the contact edges 20 at both ends, and if the shear force and the eccentricity of the chord core are taken into consideration, the common steel block 3 can be used for chords having different diameters. Can be used.
【００３３】図４（ｂ）は弦材１に角鋼管を用いた使用
例で、この角鋼管製の弦材１に鋼製ブロック３を溶接し
た例である。この例では、角鋼管の角部２４が凹面１８
の中央部に接しており、角部２４の両側に間隙２５が形
成されている。つまり、鋼製ブロック３の両端接触縁２
０が角鋼管の直角に交わるフラットな２つの面に接し、
その両端接触縁２０を溶接することで、鋼製ブロック３
が角鋼管で構成された弦材１に接合されている。この例
でも、鋼製ブロック３の両端接触縁２０が弦材１に接し
て、溶接２３等で接合されていれば、力の伝達を行うこ
とができる。FIG. 4 (b) shows an example of use in which a square steel pipe is used for the chord material 1, in which a steel block 3 is welded to the chord material 1 made of a square steel pipe. In this example, the corner 24 of the square steel pipe is
, And a gap 25 is formed on both sides of the corner 24. That is, both ends contact edge 2 of steel block 3
0 touches two flat surfaces that intersect at right angles of the square steel pipe,
By welding the contact edges 20 at both ends, the steel block 3
Are joined to a chord 1 made of a square steel pipe. Also in this example, if the contact edges 20 at both ends of the steel block 3 are in contact with the chord material 1 and are joined by welding 23 or the like, the force can be transmitted.
【００３４】なお、弦材１の断面形状は丸鋼管、角鋼管
に限らず、他の異形断面でも良く、外周面の２箇所と、
鋼製ブロック３の両端接触縁２０が弦材１の主軸方向に
平行に接触し、溶接できる構造であれば良い。The cross-sectional shape of the chord 1 is not limited to a round steel pipe or a square steel pipe, but may be another deformed cross section.
Any structure may be used as long as the contact edges 20 at both ends of the steel block 3 contact in parallel with the main axis direction of the chord 1 and can be welded.
【００３５】また、図４（ｂ）において、一方の斜材２
（図中右側）は、鋼製ブロック３に対し、図１〜図３と
同様、接合ボルト５で結合されている。これに対して、
他方の斜材２（図中左側）は、鋼製ブロック３に対し、
当該鋼製ブロック３および、斜材２のそれぞれに形成さ
れる円筒断面接合部２６に溶接により接合されており、
このような接合例でも良い。In FIG. 4B, one of the diagonal members 2
(Right side in the figure) is connected to the steel block 3 with the joining bolt 5 as in FIGS. 1 to 3. On the contrary,
The other diagonal member 2 (left side in the figure) is
The steel block 3 and the cylindrical cross section 26 formed on each of the diagonal members 2 are joined by welding,
Such a bonding example may be used.
【００３６】図５、図６はさらに他の実施形態を示す。
前述した図３、図４の実施形態では、鋼製ブロック３は
両端接触縁２０の溶接接合であるのに対し、図５、図６
の例では、鋼製ブロック３の外側から当該鋼製ブロック
３を貫通してボルト２７を弦材１の外周面にねじ込むこ
とで、鋼製ブロック３を弦材１に固着した例を示す。他
の構成は前の実施形態と同じである。FIGS. 5 and 6 show still another embodiment.
In the embodiment of FIGS. 3 and 4 described above, the steel block 3 is a welded joint of the contact edges 20 at both ends, whereas FIGS.
In the example, the steel block 3 is fixed to the string 1 by screwing a bolt 27 to the outer peripheral surface of the string 1 through the steel block 3 from the outside of the steel block 3. Other configurations are the same as the previous embodiment.
【００３７】図７（ａ），（ｂ），（ｃ）はさらに他の
実施形態を示す。この実施形態では、鋼製ブロック３の
斜材２との接合面を、当該斜材２の軸線に接線が直交す
る所定の曲率（Ｒ）を有する接合球面２１ａとし、この
接合球面２１ａに４個のボルト孔２２を開設し、このボ
ルト孔２２を介して鎖線で軸線（イ）を示す方向に斜材
２を接合する鋼製ブロック３の例を示す。FIGS. 7A, 7B and 7C show still another embodiment. In this embodiment, the joint surface of the steel block 3 with the diagonal member 2 is a joint spherical surface 21a having a predetermined curvature (R) whose tangent is orthogonal to the axis of the diagonal member 2, and four joint spherical surfaces 21a are provided. An example of the steel block 3 in which the bolt holes 22 are opened and the diagonal members 2 are joined through the bolt holes 22 in the direction shown by the chain line in the direction of the axis (a).
【００３８】図８（ａ），（ｂ），（ｃ）はさらに他の
実施形態を示す。図８（ａ）の例は、弦材１に固着され
た鋼製ブロック３に、斜材２を接合するための接合平面
２１と、ボルト孔２２が、当該円筒断面の弦材１の周方
向に一列に、かつ弦材軸方向に１個または複数個設けら
れた例を示す。図８（ｂ）の例は、鋼製ブロック３に接
合平面２１と、ボルト孔２２が、円筒断面の弦材１の周
方向に三列並設された例を示す。図８（ｃ）の例は、そ
れぞれ接合平面２１と、ボルト孔２２が、弦材１の周方
向に二列設けられた三つの鋼製ブロック３が、円筒断面
の弦材１の外周を取り囲むように配置された例を示す。FIGS. 8A, 8B and 8C show still another embodiment. In the example of FIG. 8A, a joining plane 21 for joining the diagonal member 2 to the steel block 3 fixed to the chord member 1 and a bolt hole 22 are formed in the circumferential direction of the chord member 1 having the cylindrical cross section. Fig. 1 shows an example in which one or a plurality are provided in a line and in the chord axial direction. The example of FIG. 8B shows an example in which a joint plane 21 and bolt holes 22 are arranged in the steel block 3 in three rows in the circumferential direction of the chord 1 having a cylindrical cross section. In the example of FIG. 8C, three steel blocks 3 in each of which the joining plane 21 and the bolt holes 22 are provided in two rows in the circumferential direction of the chord 1 surround the outer periphery of the chord 1 having a cylindrical cross section. An example is shown below.
【００３９】図９（ａ），（ｂ），（ｃ），（ｄ）はさ
らに他の実施形態を示す。この実施形態の接合方式は、
斜材２の端部７をつぶしてボルト接合するものである。
図９（ａ）が接合部立面図、（ｂ）が接合部断面図、
（ｃ）が見上げの接合部平面図、（ｄ）が鋼製ブロック
詳細図である。鋼製ブロック３は端部で弦材１の側面に
接触するような凹面１８を持ち、弦材１の軸方向に平行
な両端線上で弦材１の外面に接する接触縁２０を溶接す
ることにより弦材１に固着される。FIGS. 9A, 9B, 9C and 9D show still another embodiment. The joining method of this embodiment is as follows.
The end 7 of the diagonal member 2 is crushed and bolted.
9A is an elevation view of a joint, FIG. 9B is a sectional view of the joint,
(C) is a plan view of a joint portion looking up, and (d) is a detailed view of a steel block. The steel block 3 has a concave surface 18 at the end to be in contact with the side surface of the chord 1, and by welding a contact edge 20 contacting the outer surface of the chord 1 on both end lines parallel to the axial direction of the chord 1. It is fixed to the string 1.
【００４０】鋼製ブロック３の反対側には、それぞれ弦
材１に平行な斜材接合用の平面２１ｂおよびボルト孔２
２を有している。各斜材２は端部７が平面状につぶさ
れ、鋼製ブロック３の平面に接するように曲げられてい
て、この端部７は前記斜材接合用の平面２１ｂに当てが
われ、ボルト孔２２に通しボルト５を挿入することで、
押さえ材６を介して鋼製ブロック３に接合される。通し
ボルト５が一本の場合は斜材２の角度に拘わらず自由に
回転させて組み立て、通しボルト５を締め付けることに
より摩擦接合で斜材２を鋼製ブロック３に固定すること
ができる。斜材２から鋼製ブロック３へ伝達される圧縮
力１３および引張力１４は通しボルト５および押さえ材
６により伝達され、合成されたせん断力１５は接触縁２
０部の溶接により弦材１に伝達される。On the opposite side of the steel block 3, a plane 21b for connecting diagonal members and a bolt hole 2
Two. Each diagonal member 2 is flattened at its end 7 and bent so as to be in contact with the plane of the steel block 3. The end 7 is applied to the diagonal member joining plane 21b, and bolt holes are formed. By inserting the bolt 5 through 22
It is joined to the steel block 3 via the pressing member 6. When there is only one through bolt 5, the slant 2 can be fixed to the steel block 3 by frictional joining by freely rotating and assembling regardless of the angle of the slant 2 and tightening the through bolt 5. The compressive force 13 and the tensile force 14 transmitted from the diagonal member 2 to the steel block 3 are transmitted by the through bolt 5 and the pressing member 6, and the combined shear force 15 is applied to the contact edge 2.
It is transmitted to the chord material 1 by welding the zero part.
【００４１】鋼製ブロック３は鋳造、鍛造によって製作
してもよいし、溝型断面等の圧延材を切断して製作して
もよい。The steel block 3 may be manufactured by casting or forging, or may be manufactured by cutting a rolled material such as a channel-shaped cross section.
【００４２】また、通しボルト５は鋼製ブロック３を工
場で弦材１に溶接する際、あらかじめ挿入しておくこと
もできる。この場合には、各部材を分解して運搬し、施
工現場にて組立て時に斜材２の端部ボルト孔を通しボル
ト５に通した後、押さえ材６およびナットを通しボルト
５に締め付けることにより全体を一体化することが容易
に実現できる。Further, the through bolts 5 can be inserted in advance when the steel block 3 is welded to the string 1 at the factory. In this case, each member is disassembled and transported, and after assembling at the construction site, after passing through the end bolt hole of the diagonal member 2 and the bolt 5, the holding member 6 and the nut are tightened to the bolt 5. The whole can be easily integrated.
【００４３】図１０は上記接合方式（図９）の応用例を
示す。図１０（ａ）は弦材１に角型鋼管を用いた例、
（ｂ）は弦材１にＨ断面を用いた例である。このよう
に、弦材１には鋼製ブロック３が端部の２辺で接するこ
とのできる任意の断面形状をとることができ、また斜材
２も端部７を平面状につぶすことのできる任意の断面形
状を用いることができる。FIG. 10 shows an application example of the above-mentioned joining method (FIG. 9). FIG. 10A shows an example in which a square steel pipe is used for the chord material 1.
(B) is an example in which an H section is used for the chord material 1. As described above, the string member 1 can have any cross-sectional shape in which the steel block 3 can be in contact with the two sides of the end, and the diagonal member 2 can also crush the end 7 in a plane. Any cross-sectional shape can be used.
【００４４】図１１は接合方式の別の応用例を示す。図
１１（ａ），（ｂ）は鋼製ブロック３と斜材２を接合す
る通しボルト５を一本でなく、複数本使用した例で、
（ａ）は立面図、（ｂ）は見上げの平面図である。この
ように斜材２より弦材１に伝達するせん断力がボルト一
本では不足する場合は、必要に応じボルト本数を増やす
ことができる。同図（ｃ），（ｄ）は鋼製ブロック３に
斜材２を分離して接合した例で、（ｃ）が立面図、
（ｄ）が見上げの平面図である。FIG. 11 shows another application example of the joining method. FIGS. 11 (a) and 11 (b) show an example in which a plurality of bolts 5 are used to join the steel block 3 and the diagonal member 2 instead of one.
(A) is an elevation view, (b) is a plan view looking up. When the shear force transmitted from the slant member 2 to the chord member 1 is insufficient with one bolt, the number of bolts can be increased as necessary. 2C and 2D are examples in which the diagonal member 2 is separated and joined to the steel block 3, and FIG.
(D) is a plan view of looking up.
【００４５】図１２（ａ）、（ｂ）、（ｃ）は、接合方
式のさらに他の実施形態を示す。この実施形態の接合方
式では、鋼製ブロック３は、端部で弦材１の側面に接す
るような凹面１８を持ち、弦材１の軸方向に平行な両端
縁上で弦材１の外面に接する接触縁２０を溶接すること
により、弦材１に固着される。FIGS. 12 (a), 12 (b) and 12 (c) show still another embodiment of the joining method. In the joining method of this embodiment, the steel block 3 has a concave surface 18 that is in contact with the side surface of the chord 1 at an end portion, and is formed on the outer surface of the chord 1 on both ends parallel to the axial direction of the chord 1. It is fixed to the chord material 1 by welding the contact edges 20 that are in contact.
【００４６】鋼製ブロック３の反対側には、弦材方向に
斜材に対して平行な当該斜材接合用の平面２１ｃ及びボ
ルト孔２２を有している。各斜材２は端部７が平面状に
つぶされていて、この平面状部を鋼製ブロック３の前記
斜材接合用の平面２１ｃに接するように当てがい、ボル
ト孔２２に通しボルト５を挿入し、押え材６を介して斜
材２の端部が鋼製ブロック３に接合される。On the opposite side of the steel block 3, there is a flat surface 21c for connecting the diagonal members and a bolt hole 22 parallel to the diagonal members in the chord direction. The end 7 of each diagonal member 2 is flattened, and the flat part is applied to the steel block 3 so as to be in contact with the diagonal member joining plane 21c, and the bolt 5 is passed through the bolt hole 22. It is inserted, and the end of the diagonal member 2 is joined to the steel block 3 via the holding member 6.
【００４７】通しボルト５が一本の場合は斜材２の角度
に拘わらず自由に回転させて組立て、通しボルト５を締
め付けることにより、摩擦接合で斜材２を鋼製ブロック
３へ固定することができる。斜材２から鋼製ブロック３
へ伝達される圧縮力１３および引張力１４は通しボルト
５および押え材６に伝達され、合成されたせん断力１５
は接触縁２０部の溶接により弦材１に伝達される。When there is only one through bolt 5, the slant 2 is fixed to the steel block 3 by friction welding by freely rotating and assembling regardless of the angle of the slant 2, and tightening the through bolt 5. Can be. From diagonal 2 to steel block 3
The compression force 13 and the tension force 14 transmitted to the bolts 5 and the pressing members 6 are transmitted to the
Is transmitted to the chord 1 by welding the contact edge 20.
【００４８】図１３、図１４、図１５は、図１２に示す
接合方式の応用例を示す。図１３は、通しボルト５を２
本にした例であり、複数本の通しボルト５を用いること
ができる。図１４は、弦材１に角型鋼管を用いた例、図
１５は、弦材１にＨ型断面材を用いた例である。このよ
うに弦材１には鋼製ブロック３が端部の２辺で接するこ
とができる任意の断面形状をとることができ、また、斜
材２も端部７を平面状につぶすことができる任意の断面
形状を用いることができる。FIGS. 13, 14 and 15 show examples of application of the joining method shown in FIG. FIG. 13 shows that
In this example, a plurality of through bolts 5 can be used. FIG. 14 shows an example in which a square steel pipe is used for the chord 1, and FIG. 15 shows an example in which an H-shaped cross section is used for the chord 1. As described above, the string member 1 can have any cross-sectional shape in which the steel block 3 can be in contact with the two sides of the end, and the diagonal member 2 can also crush the end 7 in a plane. Any cross-sectional shape can be used.
【００４９】次に、図１６および、図１７は図１、図
９、または図１２の接合方式を用いて３角形断面を持つ
立体トラス梁２８を構成し、屋根架構１６を構築した例
を示すもので、図１６が全体斜視図、図１７（ａ）が拡
大梁側面図、同図（ｂ）が図（ａ）におけるＡ−Ａ断面
図、同（ｃ）が、Ａ−Ａ断面における変形例を示す図で
ある。Next, FIGS. 16 and 17 show an example in which a three-dimensional truss beam 28 having a triangular cross section is constructed by using the joining method shown in FIG. 1, 9 or 12, and the roof frame 16 is constructed. 16 is an overall perspective view, FIG. 17 (a) is an enlarged beam side view, FIG. 17 (b) is an AA sectional view in FIG. 17 (a), and FIG. 17 (c) is a deformation in AA section. It is a figure showing an example.
【００５０】立体トラス梁２８は、図１７（ｂ）に示す
ように断面をＶ字形に構成し、頂部を直交する母屋９で
繋ぐこともできるし、図１７（ｃ）に示すように、Ｗ形
に連続させ、折板構造とすることもできる。また、本発
明に係る立体トラス梁は、図１８（ａ）〜（ｃ）や、図
１９（ａ）、（ｂ）の各図に示す立体トラス梁２８のよ
うに、曲げたり、勾配を付けたり、梁せいを変化させる
ことも可能である。The space truss beam 28 has a V-shaped cross section as shown in FIG. 17 (b), and the tops can be connected by a purlin 9 which is orthogonal. Alternatively, as shown in FIG. The shape can be continued to form a folded plate structure. Further, the space truss beam according to the present invention is bent or provided with a gradient like the space truss beam 28 shown in FIGS. 18A to 18C and FIGS. 19A and 19B. And it is also possible to change the beam.
【００５１】図２０（ａ），（ｂ）は、本発明による立
体トラス梁構造の別の応用例を示すものであって、同図
（ａ）はドーム屋根３０を示し、同図（ｂ）はタワー３
１である。このような梁以外の立体トラス構造にも本発
明を適用でき、その場合も、弦材１と斜材２を鋼製ブロ
ック３で結合することによる既述の作用、効果を有効に
発揮させることができる。FIGS. 20 (a) and 20 (b) show another application example of the space truss beam structure according to the present invention. FIG. 20 (a) shows a dome roof 30 and FIG. Is Tower 3
It is one. The present invention can be applied to a three-dimensional truss structure other than such a beam, and in this case, the above-described operation and effect by connecting the chord member 1 and the diagonal member 2 with the steel block 3 can be effectively exhibited. Can be.
【００５２】[0052]
【発明の効果】本発明によると、トラス梁構造における
上下弦材と斜材との間に、全面または両端接触縁で弦材
側面に接する凹面および、凹面と反対側に各斜材との接
合に適した接合面を持つ鋼製ブロックを介在させたの
で、弦材と斜材との接合には、従来例のような分岐継ぎ
手接合を回避し、ボルト接合などシステムトラスの持つ
簡便で精度のよい接合方式をとすることができる。しか
も弦材は、従来例のように軸方向に分断されず主応力方
向に連続しているので、連続材のままの効率的な接合部
を実現でき、トラス梁構造の材料点数・加工コストの低
減、高精度での現場組立ての容易性、高い輸送効率等を
実現できる。According to the present invention, between the upper and lower chord members and the diagonal members in the truss beam structure, a concave surface which is in contact with the chord side surfaces on the entire surface or at the contact edges at both ends, and a joint with each diagonal member on the opposite side to the concave surface. A steel block with a suitable joint surface is interposed, so that the joint between the chord and the diagonal material avoids the branch joint joint as in the conventional example and the simple and accurate A good joining method can be achieved. In addition, the chord is continuous in the main stress direction without being divided in the axial direction unlike the conventional example, so that an efficient joint can be realized as a continuous material, and the number of materials and the processing cost of the truss beam structure are reduced. Reduction, ease of on-site assembly with high accuracy, high transport efficiency, etc. can be realized.
【図１】本発明の第１の実施形態を示し、（ａ）が弦材
と斜材の接合部立面図、（ｂ）が同（ａ）の縦断側面
図、（ｃ）が鋼製ブロックの斜視図である。1A and 1B show a first embodiment of the present invention, wherein FIG. 1A is an elevational view of a joint between a chord member and a diagonal member, FIG. 1B is a vertical side view of FIG. 1A, and FIG. It is a perspective view of a block.
【図２】図１の斜材と弦材を分離した状態の接合部断面
図である。FIG. 2 is a cross-sectional view of a joint in a state where a diagonal member and a chord member of FIG. 1 are separated.
【図３】図１の斜材と弦材を接合した状態の接合部断面
図である。FIG. 3 is a cross-sectional view of a joining portion in a state where a diagonal member and a chord member of FIG. 1 are joined.
【図４】（ａ）、（ｂ）は、弦材と鋼製ブロックの間に
間隙が形成される２つの実施形態の縦断側面図である。4 (a) and 4 (b) are longitudinal side views of two embodiments in which a gap is formed between a chord and a steel block.
【図５】弦材と鋼製ブロックとの接合手段が図２と異な
る実施形態において、斜材と弦材を分離した状態の接合
部断面図である。FIG. 5 is a cross-sectional view of a joint portion in a state where a diagonal member and a string member are separated in an embodiment in which a joining member between a string member and a steel block is different from that in FIG. 2;
【図６】弦材と鋼製ブロックとの接合手段が図２と異な
る実施形態において、斜材と弦材を接合した状態の接合
部断面図である。FIG. 6 is a cross-sectional view of a joint where a diagonal member and a string member are joined in an embodiment in which the joining means of the string member and the steel block is different from that of FIG. 2;
【図７】（ａ），（ｂ），（ｃ）は本発明の他の実施形
態として、前記と異なる構成の鋼製ブロックを示す平面
図と側面図と正面図である。FIGS. 7 (a), (b), and (c) are a plan view, a side view, and a front view showing a steel block having a different configuration from the above, as another embodiment of the present invention.
【図８】（ａ），（ｂ），（ｃ）は、本発明のさらに他
の実施形態として、前記と異なる構成の鋼製ブロックの
３つの例を示すそれぞれの正面図である。FIGS. 8 (a), (b), and (c) are front views showing three examples of steel blocks having different configurations from the above, as still another embodiment of the present invention.
【図９】（ａ），（ｂ），（ｃ），（ｄ）は、本発明の
さらに他の実施形態を示し、（ａ）は接合部立面図、
（ｂ）は接合部断面図、（ｃ）は見上げの接合部平面
図、（ｄ）は鋼製ブロック詳細図である。9 (a), 9 (b), 9 (c), and 9 (d) show still another embodiment of the present invention, and FIG.
(B) is a sectional view of the joint, (c) is a plan view of the joint as seen upward, and (d) is a detailed view of a steel block.
【図１０】（ａ），（ｂ）は弦材が図９と異なる実施形
態における斜材と弦材を接合した状態の接合部断面図で
ある。FIGS. 10 (a) and (b) are cross-sectional views showing a state where the oblique material and the chord material are joined in an embodiment in which the chord material is different from that of FIG. 9;
【図１１】弦材と鋼製ブロックとの接合手段が図９と異
なる実施形態を示し、（ａ），（ｃ）は立面図、
（ｂ），（ｄ）は見上げの平面図である。11 shows an embodiment in which the joining means between the chord material and the steel block is different from that of FIG. 9, (a) and (c) are elevational views,
(B), (d) is a plan view of looking up.
【図１２】弦材と鋼製ブロックとの接合手段が前の各図
と異なる他の実施形態を示し、（ａ）が弦材と斜材の接
合部立面図、（ｂ）が同（ａ）の縦断側面図、（ｃ）が
鋼製ブロックの斜視図である。FIGS. 12A and 12B show another embodiment in which the joining means between the chord material and the steel block is different from the previous figures, wherein FIG. 12A is an elevation view of the joining part between the chord material and the oblique material, and FIG. FIG. 2A is a longitudinal side view, and FIG. 2C is a perspective view of a steel block.
【図１３】図１２の応用例１を示す弦材と斜材の接合部
立面図である。13 is an elevational view of a joint between a chord member and a diagonal member, showing application example 1 of FIG. 12;
【図１４】図１２の応用例２を示す弦材と斜材の接合部
縦断側面図である14 is a longitudinal sectional side view of a joint between a chord member and a diagonal member, showing application example 2 of FIG. 12;
【図１５】図１２の応用例３を示す弦材と斜材の接合部
縦断側面図である15 is a longitudinal sectional side view of a joint between a chord member and a diagonal member, showing application example 3 of FIG. 12;
【図１６】図１の接合方式を用いてなる３角形断面を持
つ立体トラス梁で構築した屋根架構の全体斜視図であ
る。FIG. 16 is an overall perspective view of a roof frame constructed of a space truss beam having a triangular cross section using the joining method of FIG. 1;
【図１７】（ａ）は図９の拡大梁立面図、（ｂ）は同図
（ａ）のＡ−Ａ線断面図、（ｃ）はＡ−Ａ線における変
形例の断面図である。17A is an enlarged elevational view of the beam in FIG. 9, FIG. 17B is a cross-sectional view taken along the line AA in FIG. 17A, and FIG. 17C is a cross-sectional view of a modification taken along the line AA in FIG. .
【図１８】（ａ），（ｂ），（ｃ）は本発明が実施され
る立体梁トラス構造の３例を示す側面説明図である。FIGS. 18 (a), (b) and (c) are side explanatory views showing three examples of a three-dimensional beam truss structure in which the present invention is implemented.
【図１９】（ａ），（ｂ）は本発明が実施される立体梁
トラス構造の他の２例を示す側面説明図である。FIGS. 19 (a) and (b) are explanatory side views showing two other examples of the three-dimensional beam truss structure in which the present invention is implemented.
【図２０】（ａ），（ｂ）は本発明による立体梁トラス
構造の他の応用例として、ドーム屋根とタワーを示す説
明斜視図である。FIGS. 20 (a) and (b) are explanatory perspective views showing a dome roof and a tower as another application example of the three-dimensional beam truss structure according to the present invention.
【図２１】（ａ），（ｂ）は第１従来例のシステムトラ
ス構造における屋根架構の平面図と側面図である。FIGS. 21A and 21B are a plan view and a side view of a roof frame in the system truss structure of the first conventional example.
【図２２】図２１の（イ）部の拡大図（つまり、ノード
接合部詳細図）である。FIG. 22 is an enlarged view of a part (a) of FIG. 21 (that is, a detailed view of a node junction part).
【図２３】（ａ），（ｂ）は第２従来例の簡易トラスシ
ステムにおける接合部の拡大図であり、（ａ）は立面
図、（ｂ）は平面図である。FIGS. 23 (a) and 23 (b) are enlarged views of a joint in the simple truss system of the second conventional example, (a) is an elevation view, and (b) is a plan view.
【図２４】（ａ）は第３従来例の溶接トラス構造におけ
る屋根架構の立面図、（ｂ）は側面図、（ｃ）は図
（ａ）の（ロ）部の拡大図（つまり、分岐継手溶接接合
部の詳細図）である。24 (a) is an elevation view of a roof frame in a third conventional welding truss structure, FIG. 24 (b) is a side view, and FIG. 24 (c) is an enlarged view of a portion (b) of FIG. FIG. 3 is a detailed view of a branch joint welded joint).
１ 弦材 ２ 斜材 ３ 鋼製ブロック ４ 溶接接合部 ５ 接合ボルト ６ ワッシャー、押さえ材 ７ エンドコーン、端部 ８ 支持構造 ９ 母屋 １０ 屋根構造 １１ ノード １２ ボルト送り出し用スプリング １３ 斜材からの圧縮力 １４ 斜材からの引張力 １５ せん断力 １６ 屋根架構例 １７ 屋根構造 １８ 凹面 ２０ 両端接触縁 ２１ 平面 ２１ａ 接合球面 ２１ｂ 接合面 ２１ｃ 接合面 ２２ ボルト孔 ２３ 溶接 ２４ 角部 ２５ 間隙 ２６ 円筒断面接合部 ２７ ボルト ２８ 立体トラス梁 ２９ 溶接 DESCRIPTION OF SYMBOLS 1 String material 2 Diagonal material 3 Steel block 4 Welding joint 5 Joining bolt 6 Washer, holding material 7 End cone, end 8 Support structure 9 Purlin 10 Roof structure 11 Node 12 Bolt delivery spring 13 Compression force from diagonal material 14 Tensile force from diagonal material 15 Shear force 16 Roof frame example 17 Roof structure 18 Concave surface 20 Both-end contact edge 21 Flat surface 21a Joint spherical surface 21b Joint surface 21c Joint surface 22 Bolt hole 23 Weld 24 Corner 24 25 Gap 26 Cylindrical joint 27 Bolt 28 space truss beam 29 welding
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中井 賢太郎 東京都千代田区大手町２−６−３ 新日本 製鐵株式会社内 (72)発明者 藤田 正則 東京都千代田区大手町２−６−３ 新日本 製鐵株式会社内 (72)発明者 神山 芳 東京都千代田区大手町２−６−３ 新日本 製鐵株式会社内 (72)発明者 犬木 弘志 東京都千代田区大手町２−６−３ 新日本 製鐵株式会社内 (72)発明者 永田 一廣 千葉市稲毛区長沼町135 東京エコン建鉄 株式会社内 Ｆターム(参考） 2E125 AA15 AA35 AB01 AB15 AC15 AC16 AG14 AG16 AG41 AG58 AG59 BB09 BB16 BB31 BB32 BB33 BC06 BC07 BC08 BD01 BE02 CA03 CA15 2E163 FA12 FB32 FB45 FB49 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kentaro Nakai 2-6-3 Otemachi, Chiyoda-ku, Tokyo Inside Nippon Steel Corporation (72) Inventor Masanori Fujita 2-6-3, Otemachi, Chiyoda-ku, Tokyo Inside Nippon Steel Corporation (72) Inventor Yoshiyoshi Kamiyama 2-6-3 Otemachi, Chiyoda-ku, Tokyo Inside Nippon Steel Corporation (72) Inventor Hiroshi Inuki 2-6, Otemachi, Chiyoda-ku, Tokyo 3 Nippon Steel Corporation (72) Inventor Kazuhiro Nagata 135 Naganuma-cho, Inage-ku, Chiba City Tokyo Ekon Corporation Iron Corporation F-term (reference) 2E125 AA15 AA35 AB01 AB15 AC15 AC16 AG14 AG16 AG41 AG58 AG59 BB09 BB16 BB31 BB32 BB33 BC06 BC07 BC08 BD01 BE02 CA03 CA15 2E163 FA12 FB32 FB45 FB49
Claims (14)
ス梁において、前記弦材と斜材との間に、弦材側に凹面
を持ち、当該凹面の一部又は全部が当該弦材の外周と接
して固着され、前記弦材側と反対の側に斜材の軸心に対
して直交する斜材接合用の平面、または球面或いは円筒
面を持つ鋼製ブロックを介在させ、弦材と鋼製ブロック
および、鋼製ブロックと斜材をそれぞれ固着することに
より構成されるトラス梁構造。1. A truss beam composed of upper and lower chords and diagonal members, wherein the truss member has a concave surface on the chord side between the chord members and the diagonal members, and a part or all of the concave surface is formed of the chord members. A steel block having a diagonal joining plane orthogonal to the axis of the diagonal, or a spherical or cylindrical surface is interposed on the side opposite to the chord and fixed to the outer periphery. A truss beam structure composed of a steel block and a steel block and a diagonal member fixed to each other.
の一方または両方に鋼管又は角鋼管を用いた請求項１記
載のトラス梁構造。2. The truss beam structure according to claim 1, wherein in the truss beam structure, a steel pipe or a square steel pipe is used for one or both of a chord member and a diagonal member.
クと弦材は、当該弦材軸に平行な直線で接し固着されて
いる請求項１または２記載のトラス梁構造。3. The truss beam structure according to claim 1, wherein in the truss beam structure, the steel block and the chord member are in contact with and fixed by a straight line parallel to the chord axis.
クと弦材は溶接により固着されている請求項１〜３のい
ずれかに記載のトラス梁構造。4. The truss beam structure according to claim 1, wherein in the truss beam structure, the steel block and the chord are fixed by welding.
クと斜材はボルトにより固着されている請求項１〜４の
いずれかに記載のトラス梁構造。5. The truss beam structure according to claim 1, wherein in the truss beam structure, the steel block and the diagonal member are fixed by bolts.
のボルトを外部ワッシャーを回転させることにより締結
する請求項５記載のトラス梁構造。6. The truss beam structure according to claim 5, wherein in the truss beam structure, bolts for joining diagonal members are fastened by rotating an external washer.
梁構造における、前記鋼製ブロックと弦材の固着は、斜
材をガイドにして工場にて行い、固着後斜材を分離して
運搬し、現場で組み立てることを特徴とするトラス梁の
施工法。7. The truss beam structure according to any one of claims 1 to 6, wherein the steel block and the chord material are fixed at a factory using the diagonal material as a guide, and after the fixing, the diagonal material is separated. A truss beam construction method characterized in that it is transported and assembled on site.
るトラス梁において、前記弦材と斜材との間に、弦材側
に凹面を持ち、当該凹面の一部または全部が当該弦材の
外周と接し、反対側に弦材と平行な斜材接合用の平面を
持つ鋼製ブロックを介在させ、弦材と鋼製ブロック、鋼
製ブロックと端部を平面状につぶした各斜材を固着する
ことにより構成されるトラス梁構造。8. A truss beam composed of a plurality of upper and lower chord members and diagonal members, wherein the chord member and the diagonal member have a concave surface on the chord material side, and a part or all of the concave surface is the string. A steel block that is in contact with the outer periphery of the lumber and has a flat plane for joining diagonal members parallel to the chord members on the opposite side is interposed. A truss beam structure constructed by fixing materials.
るトラス梁において、前記弦材と斜材との間に、弦材側
に凹面を持ち、当該凹面の一部または全部が当該弦材の
外周と接し、反対側に斜材と平行な斜材接合用の平面を
持つ鋼製ブロックを介在させ、弦材と鋼製ブロック、鋼
製ブロックと端部を平面状につぶした各斜材を固着する
ことにより構成されるトラス梁構造。9. A truss beam composed of a plurality of upper and lower chord members and diagonal members, wherein the chord member and the diagonal members have a concave surface on the chord material side, and a part or all of the concave surface is the string. A steel block that is in contact with the outer periphery of the timber and has a plane for joining diagonal members parallel to the diagonal members on the opposite side, and the chord members and the steel blocks, and the steel blocks and the ends that flatten the ends are flattened. A truss beam structure constructed by fixing materials.
斜材に鋼管又は角鋼管を用いた請求項８又は９記載のト
ラス梁構造。10. The truss beam structure according to claim 8, wherein the truss beam structure uses a steel pipe or a square steel pipe for a chord member and a diagonal member.
ックと弦材は弦材軸に平行な直線で接し固着されている
請求項８〜９の何れかに記載のトラス梁構造。11. The truss beam structure according to claim 8, wherein in the truss beam structure, the steel block and the chord member are in contact with and fixed to each other in a straight line parallel to the chord axis.
ックと弦材は溶接により固着されている請求項８〜１１
の何れかに記載のトラス梁構造。12. In the truss beam structure, the steel block and the chord are fixed by welding.
A truss beam structure according to any one of the above.
ックと各斜材はボルトにより固着されている請求項８〜
１２のいずれかに記載のトラス梁構造。13. In the truss beam structure, the steel block and each diagonal member are fixed by bolts.
13. The truss beam structure according to any one of 12 above.
ス梁構造における、各斜材の接合ボルトは鋼製ブロック
と弦材を固着する際にあらかじめ鋼製ブロック内に設置
されており、端部を平面状につぶした各斜材を取り付け
た後鋼製ブロック外部からナットを締めることによって
一体化することを特徴とするトラス梁の施工法。14. The truss beam structure according to any one of claims 8 to 13, wherein the connecting bolts of each diagonal member are previously installed in the steel block when the steel block and the chord member are fixed. A method of constructing a truss beam, wherein each diagonal member having a flattened end is attached and then integrated by tightening a nut from outside the steel block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000195054A JP2002004414A (en) | 1999-10-27 | 2000-06-28 | Trussed girder structure and method of constructing it |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30490599 | 1999-10-27 | ||
| JP2000121128 | 2000-04-21 | ||
| JP2000-121128 | 2000-04-21 | ||
| JP11-304905 | 2000-04-21 | ||
| JP2000195054A JP2002004414A (en) | 1999-10-27 | 2000-06-28 | Trussed girder structure and method of constructing it |
Publications (1)
| Publication Number | Publication Date |
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| JP2002004414A true JP2002004414A (en) | 2002-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2000195054A Pending JP2002004414A (en) | 1999-10-27 | 2000-06-28 | Trussed girder structure and method of constructing it |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008285833A (en) * | 2007-05-15 | 2008-11-27 | Sankyo Tateyama Aluminium Inc | Simple building |
| JP2009535538A (en) * | 2006-04-28 | 2009-10-01 | マーク シー カーター | Modular folding display booth structure |
| CN104343205A (en) * | 2014-09-25 | 2015-02-11 | 上海泰大建筑科技有限公司 | Novel plate truss structure |
| US9183880B2 (en) | 2003-04-04 | 2015-11-10 | Sony Corporation | Imaging device and recording control system |
| CN106088360A (en) * | 2016-07-08 | 2016-11-09 | 中国航空规划设计研究总院有限公司 | A kind of large span two-tube lower edge of list truss structure connects node and truss structure |
-
2000
- 2000-06-28 JP JP2000195054A patent/JP2002004414A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9183880B2 (en) | 2003-04-04 | 2015-11-10 | Sony Corporation | Imaging device and recording control system |
| JP2009535538A (en) * | 2006-04-28 | 2009-10-01 | マーク シー カーター | Modular folding display booth structure |
| JP2008285833A (en) * | 2007-05-15 | 2008-11-27 | Sankyo Tateyama Aluminium Inc | Simple building |
| CN104343205A (en) * | 2014-09-25 | 2015-02-11 | 上海泰大建筑科技有限公司 | Novel plate truss structure |
| CN106088360A (en) * | 2016-07-08 | 2016-11-09 | 中国航空规划设计研究总院有限公司 | A kind of large span two-tube lower edge of list truss structure connects node and truss structure |
| CN106088360B (en) * | 2016-07-08 | 2018-09-18 | 中国航空规划设计研究总院有限公司 | A kind of two-tube lower edge connecting node of large span list truss structure and truss structure |
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