JPH0130979B2 - - Google Patents
Info
- Publication number
- JPH0130979B2 JPH0130979B2 JP8349883A JP8349883A JPH0130979B2 JP H0130979 B2 JPH0130979 B2 JP H0130979B2 JP 8349883 A JP8349883 A JP 8349883A JP 8349883 A JP8349883 A JP 8349883A JP H0130979 B2 JPH0130979 B2 JP H0130979B2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- fitting
- joining
- joint
- washer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005304 joining Methods 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
Description
【発明の詳細な説明】
この発明は、鋼管を主体とする弦材を使用した
立体トラスにおける部材の接合方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of joining members in a three-dimensional truss using chord members mainly made of steel pipes.
立体トラス構法は、製作精度が高く、工業生産
された部材を建設現場にてボルトにより接合し
て、容易に大スパン構造を架構できる工法であ
り、力学的に合理的な構造で、平版のみならず折
版、曲面の自由な建築造形に対応できるうえ、そ
の骨組構成の美しさから、大ホール、屋外競技場
等の広い建築空間を柱なしで包む屋根の構法とし
て採用されている。 The three-dimensional truss construction method is a construction method that has high manufacturing precision and can easily construct large-span structures by joining industrially produced members with bolts at the construction site. In addition to being able to accommodate free architectural shapes such as folded plates and curved surfaces, it has also been adopted as a construction method for roofs that enclose large architectural spaces such as large halls and outdoor stadiums without pillars due to the beauty of its framework structure.
一般に工業化手法により製作された立体トラス
構造は、部材間の接合部に球形または多面形の鋼
製接合金具を用いて、ボルトにより各部材の応力
軸心が接合金具内の同一点に交わるように接合す
るものであり、基本的には各構成部材に構造的偏
心がなく、部材として断面効率が高い鋼管が使用
されることが多い。 In general, three-dimensional truss structures manufactured using industrialized methods use spherical or multifaceted steel joints at the joints between members, and bolts are used to ensure that the stress axes of each member intersect at the same point within the joint. Basically, there is no structural eccentricity in each component, and steel pipes with high cross-sectional efficiency are often used as members.
第１図および第２図は、従来実用化されている
鋼管使用立体トラスにおける部材接合部の一例を
示すものであつて、小径端部に予めねじ孔９を設
けた截頭円錐状の鋼製端部金具１０における大径
端部が、鋼管部材１１の両端部の溶接により結合
されて弦材１２が構成され、球殻の一部で構成さ
れると共にボルト挿通用透孔１３を備えている円
環状の鋼製接合金具１４の球状外面と前記弦材１
２の端部との間に座金１５が介在され、かつ前記
接合金具１４のボルト挿通用透孔１２および座金
１５に、接合金具１４の内側からボルト１６が挿
通され、そのボルト１６が弦材１２における端部
金具１０のねじ孔９に螺合され、そのボルト１６
により接合金具１４と弦材１２とが座金１５を介
して締付結合されている。そしてボルト１６の締
付け作業は、接合金具１４の操作用開口部１７か
ら挿入した締付工具により行なわれ、締付終了後
に、端部金具１０に螺合されている弛み止め用押
ねじ１８が締付方向に回動されてボルト１６に押
付けられる。 Figures 1 and 2 show an example of a member joint in a space truss using steel pipes that has been put into practical use in the past. The large-diameter end of the end fitting 10 is joined to both ends of the steel pipe member 11 by welding to form a chord member 12, which is formed of a part of a spherical shell and is provided with a through hole 13 for bolt insertion. The spherical outer surface of the annular steel joint fitting 14 and the chord member 1
A washer 15 is interposed between the ends of the chord members 12 and 15, and a bolt 16 is inserted from the inside of the connecting metal fitting 14 into the through-hole 12 for bolt insertion and the washer 15 of the connecting metal fitting 14. The bolt 16 is screwed into the screw hole 9 of the end fitting 10 in
As a result, the joining fitting 14 and the chord member 12 are fastened together via the washer 15. The bolt 16 is tightened using a tightening tool inserted through the operation opening 17 of the joining fitting 14. After the tightening is completed, the locking set screw 18 screwed into the end fitting 10 is tightened. It is rotated in the attaching direction and pressed against the bolt 16.
しかるに、前記従来のトラス部材接合部の場合
は、高精度の立体トラスを容易に組立てることが
できるという利点を有するが、その反面、次のよ
うな問題点があつた。 However, in the case of the conventional truss member joint, although it has the advantage of being able to easily assemble a highly accurate three-dimensional truss, it has the following problems.
すなわち、第３図は複数のボルト１６Ａ，１６
Ｂが近接して配置されて締結される状態を示して
いるが、この場合、ボルト締付用回動工具のソケ
ツト１９が隣りのボルト１６Ｂの頭部に突き当た
らないことがトラス組立て作業上の必要条件であ
り、かつ接合金具１４の球心を通るボルト１６Ａ
およびボルト１６Ｂの軸線が挾む角度φの最小値
はボルトの頭部の大きさによつて決まるため、部
材の構成上、所要の部材間角度φを確保するに
は、接合金具１４の内径Ｒを或る一定値以上にす
る必要がある。 That is, FIG. 3 shows a plurality of bolts 16A, 16
In this case, it is important for truss assembly work that the socket 19 of the bolt tightening rotary tool does not hit the head of the adjacent bolt 16B. Bolt 16A is a necessary condition and passes through the spherical center of the joining fitting 14.
Since the minimum value of the angle φ between the axes of the bolt 16B is determined by the size of the head of the bolt, the inner diameter R of the joining fitting 14 must be must be greater than a certain value.
また第４図はボルト２６Ａを接合金具１４の内
側から挿入する状態を示したものであり、この場
合、ボルト２６Ａを支障なく挿入できるようにす
るためには、既に挿通されたボルト２６Ｂの頭部
が挿入しようとするボルト２６Ａの挿入を阻害し
ない範囲で接合金具の内径Ｒを設定する必要があ
る。 Further, FIG. 4 shows the state in which the bolt 26A is inserted from the inside of the joining fitting 14. In this case, in order to be able to insert the bolt 26A without any trouble, the head of the bolt 26B that has already been inserted must be It is necessary to set the inner diameter R of the joining fitting within a range that does not obstruct the insertion of the bolt 26A.
以上の理由により、１個の接合金具に挿通され
るボルトの本数、ボルトの直径およびボルトの長
さが増すにしたがつて、接合金具の内径が増大
し、かつそれに伴つて接合金具の構造強度を維持
するために、接合金具の壁厚を増やす必要が生
じ、その結果、接合金具の大きさおよび重量が加
速度的に増加するという問題があつた。特に大ス
パン構造や積雪、風力等の外的荷重の大きい立体
トラス構造については、構造部材の製作コストお
よび組立コストの大巾な増加を生じ、全体の建設
費が割高になるという問題があつた。 For the above reasons, as the number of bolts inserted into one joint, the diameter of the bolt, and the length of the bolt increase, the inner diameter of the joint increases, and the structural strength of the joint increases accordingly. In order to maintain this, it became necessary to increase the wall thickness of the joint metal fittings, and as a result, there was a problem in that the size and weight of the joint metal fittings increased at an accelerating rate. In particular, for large-span structures and three-dimensional truss structures subject to large external loads such as snow and wind, there is a problem in that the manufacturing and assembly costs of structural members increase significantly, making the overall construction cost relatively high. .
この発明は前述の問題を有利に解決できる立体
トラスの部材接合方法を提供することを目的とす
るものである。 An object of the present invention is to provide a method for joining members of a space truss that can advantageously solve the above-mentioned problems.
次にこの発明を図示の例によつて詳細に説明す
る。 Next, the present invention will be explained in detail using illustrated examples.
第５図はこの発明の実施例において用いられる
ボルト付き弦材２０を示し、第６図はその弦材に
おけるばね支持部を示すものであつて、断面円形
の鋼管部材２１における両端部内に、鋼板からな
るばね支承板２２が溶接により固定され、そのば
ね支承板２２に複数のばね係止片２３が切起し形
成され、つる巻きばねからなるボルト押出用ばね
５の一端部は、ばね支承板２２に当接されて前記
ばね係止片２３により押付固定されている。小径
端部にボルト挿通用透孔２を備えている截頭円錐
状の鋼製端部金具２４における前記透孔２に、基
端に頭部２５を有すると共に先端に６角孔からな
る回動工具係合用凹部２６を有する締付用ボルト
３の軸部４が、端部金具２４の大径端部側から挿
入され、かつ鋼管部材２１の両端部に端部金具２
４の大径端部が溶接により固着され、さらにボル
ト押出用ばね５の他端部はボルト３の頭部２５に
押付けられ、そのばね５の力によりボルト３の軸
部４の先端が端部金具２４の先端から突出され、
また鋼管部材２１とその両端に固着された端部金
具２４とにより弦材１が構成されている。 FIG. 5 shows a bolted string member 20 used in an embodiment of the present invention, and FIG. 6 shows a spring support portion of the string member, in which a steel plate is installed in both ends of a steel pipe member 21 having a circular cross section. A spring support plate 22 made of 22 and is pressed and fixed by the spring locking piece 23. A truncated conical steel end fitting 24 having a bolt insertion hole 2 at its small diameter end has a head 25 at its base end and a hexagonal hole at its tip. The shaft portion 4 of the tightening bolt 3 having the tool engagement recess 26 is inserted from the large diameter end side of the end fitting 24, and the end fitting 2 is inserted into both ends of the steel pipe member 21.
The large diameter end of the bolt 4 is fixed by welding, and the other end of the bolt pushing spring 5 is pressed against the head 25 of the bolt 3, and the force of the spring 5 causes the tip of the shaft 4 of the bolt 3 to protrudes from the tip of the metal fitting 24,
Further, the chord member 1 is constituted by the steel pipe member 21 and the end fittings 24 fixed to both ends thereof.
第７図はこの発明の実施例において用いられる
接合金具８を示すものであつて、球殻からなる接
合金具本体２７における上下方向の一方に操作用
開口部６が設けられ、かつ接合金具本体２７の周
壁には、その周壁を貫通する多数のボルト螺合用
ねじ孔７が設けられている。 FIG. 7 shows a joining fitting 8 used in an embodiment of the present invention, in which an operating opening 6 is provided on one side in the vertical direction of a joining fitting main body 27 made of a spherical shell. A large number of screw holes 7 for screwing in bolts are provided in the peripheral wall of the main body, which pass through the peripheral wall.
第８図および第９図はこの発明の実施例におい
て用いられる座金２８を示すものであつて円形座
金本体の片側に、前記接合金具８における球状外
面に適合する凹球面２９が設けられ、かつ前記座
金本体の反対側には平坦面３０が設けられてい
る。 8 and 9 show a washer 28 used in an embodiment of the present invention, in which a concave spherical surface 29 that fits the spherical outer surface of the joining fitting 8 is provided on one side of the circular washer body, and A flat surface 30 is provided on the opposite side of the washer body.
前記ばね５の長さおよび強さとばね支承板２２
の位置とは、第１０図に示すように座金２８を端
部金具２４の先端面に当接したとき、ボルト３の
軸部４の先端部が座金２４から突出するように設
定される。 The length and strength of the spring 5 and the spring support plate 22
The position is set such that when the washer 28 is brought into contact with the distal end surface of the end fitting 24, the distal end of the shaft portion 4 of the bolt 3 protrudes from the washer 24, as shown in FIG.
なおばね５をばね支承板２２に取付けないでボ
ルト３の頭部に適当な手段により取付けてもよ
く、またばね支承板２２を固定する手段として
は、溶接、ねじ止めまたは圧入等の任意の固定手
段を採用してもよい。 Note that the spring 5 may not be attached to the spring support plate 22 but may be attached to the head of the bolt 3 by an appropriate means, and the means for fixing the spring support plate 22 may be any fixing method such as welding, screwing, press-fitting, etc. You may use other means.
前記ボルト付き弦材２０、接合金具８およびび
座金２８を使用して立体トラスを組立てる場合
は、まず第１０図に示すように、弦材１の端部か
ら突出しているボルト３の軸部４に座金２８を嵌
設して、その座金２８の平坦面を端部金具２４の
先端面に当接する。 When assembling a three-dimensional truss using the bolted chord members 20, joining fittings 8, and washer 28, first, as shown in FIG. A washer 28 is fitted to the end fitting 24, and the flat surface of the washer 28 is brought into contact with the distal end surface of the end fitting 24.
次にボルト３の軸部４の先端を接合金具８の球
状外面に当接し、ボルト３の軸部４の先端が接合
金具８のねじ７の拡開端部に係合する位置まで弦
材１を移動し、次いで第１１図および第１２図に
示すように、座金２８の凹球面２９が接合金具８
の球状外面に接触または近接する位置まで弦材１
を接合金具８に向かつて押圧移動し、ボルト３の
軸部４の先端を接合金具８のねじ孔７の先端に対
しばね５の力で押付ける。 Next, the tip of the shaft portion 4 of the bolt 3 is brought into contact with the spherical outer surface of the joining fitting 8, and the chord member 1 is moved to a position where the tip of the shaft portion 4 of the bolt 3 engages with the expanded end of the screw 7 of the joining fitting 8. Then, as shown in FIGS. 11 and 12, the concave spherical surface 29 of the washer 28 touches the joining fitting 8.
1 until it touches or comes close to the spherical outer surface of
is pushed toward the joining metal fitting 8, and the tip of the shaft portion 4 of the bolt 3 is pressed against the tip of the screw hole 7 of the joining metal fitting 8 by the force of the spring 5.
次に第１３図に示すように、６角形の係合軸部
を有するラチエツトレンチ等の回動工具３１を接
合金具８の操作用開口部６から接合金具８内に挿
入し、かつ回動工具３１の前記係合軸部をボルト
３の回転工具係合用凹部２６に嵌合し、前記回動
工具３１によりボルト３を回動して、第１４図に
示すように接合金具８のねじ孔７にねじ込む。 Next, as shown in FIG. 13, a rotary tool 31 such as a ratchet trench having a hexagonal engagement shaft is inserted into the joint metal fitting 8 through the operating opening 6 of the joint metal fitting 8, and rotated. The engagement shaft portion of the tool 31 is fitted into the rotary tool engagement recess 26 of the bolt 3, and the bolt 3 is rotated by the rotation tool 31 to fit into the threaded hole of the joining fitting 8 as shown in FIG. Screw in 7.
次に前記ボルト３により弦材１と接合金具８と
が座金２８を介して軽く締付けられた状態すなわ
ち仮締めされた状態になつたとき、回動工具３１
による締付操作を停止する。 Next, when the chord member 1 and the joining fitting 8 are lightly tightened with the bolt 3 via the washer 28, that is, temporarily tightened, the rotating tool 31
Stop the tightening operation.
このようにして全数の弦材１と接合金具８とを
ボルト３により仮締めしたのち、各ボルト３をさ
らに緊締して本締めを行なう。 After all the string members 1 and the joining metal fittings 8 are temporarily tightened with the bolts 3 in this manner, each bolt 3 is further tightened for final tightening.
第１５図および第１６図は接合を完了した上弦
材、傾斜弦材および接合金具の接合部を示してい
る。 FIGS. 15 and 16 show the joined portions of the upper chord material, the inclined chord material, and the joining metal fittings after they have been joined.
前述のようにして弦材と接合金具とを接合すれ
ば、接合金具内にボルトの頭部が存在しないの
で、第１７図に示すように、接合金具８の径を小
さくできると共に、複数の弦材の端部を著しく接
近させた状態で接合金具に接合することができ
る。 If the string material and the joining metal fitting are joined as described above, there is no bolt head inside the joining metal fitting, so the diameter of the joining metal fitting 8 can be made small as shown in FIG. The ends of the material can be joined to the joining fittings in a state where they are brought very close to each other.
第１１図ないし第１６図はこの発明を上弦材お
よび傾斜弦材と接合金具との接合に実施した例で
あるが、この発明を下弦材および傾斜弦材と接合
金具との接合にも同様にして実施することができ
る。この場合は、接合金具の操作用開口部を下側
に配置すればよい。 Figures 11 to 16 show examples in which the present invention is applied to join upper chord members, inclined chord members, and joining fittings, but this invention can also be applied to join lower chord members, inclined chord members, and connecting fittings. It can be implemented by In this case, the operating opening of the joint may be placed on the lower side.
この発明を実施する場合、座金２８を使用しな
いで端部金具２４の先端に形成した凹球面を接合
金具８の球状外面に当接してもよい。また端部金
具の先端と接合金具のねじ孔７の外周辺を密着で
きるように双方を平坦にしてもよい。さらにま
た、操作用開口部を球殻状の接合金具の上下両側
に設けてもよい。 When carrying out this invention, the concave spherical surface formed at the tip of the end fitting 24 may be brought into contact with the spherical outer surface of the joining fitting 8 without using the washer 28. Further, both may be made flat so that the tip of the end fitting and the outer periphery of the screw hole 7 of the joining fitting can be brought into close contact. Furthermore, operating openings may be provided on both the upper and lower sides of the spherical shell-shaped joint fitting.
ボルト押出用ばねとしては、板ばねまたはゴム
等の弾性体を使用してもよく、またボルト３の軸
部４の先端に設けられる回動工具係合用凹部２６
は４角孔その他の非円形孔であつてもよい。 A plate spring or an elastic body such as rubber may be used as the bolt extrusion spring, and a rotary tool engaging recess 26 provided at the tip of the shaft portion 4 of the bolt 3 may be used.
may be a square hole or other non-circular hole.
第１８図はボルト付き弦材の他の例を示すもの
であつて、鋼板またはプラスチツクからなる有底
円筒状のケース３２内に、つる巻きばねからなる
ボルト押出用ばね５が収容され、そのばね５の一
端部はケース３２の底板に挿込係止され、かつボ
ルト３の円形頭部２５はケース３２内に回動およ
び摺動自在に嵌設され、さらにケース３２の先端
部に形成された雄ねじ部３３は端部金具２４に螺
合固定されているが、その他の構成は第５図に示
すボルト付き弦材と同様である。 FIG. 18 shows another example of a bolted chord member, in which a bolt extrusion spring 5 made of a helical spring is housed in a bottomed cylindrical case 32 made of a steel plate or plastic. One end of the bolt 5 is inserted and locked into the bottom plate of the case 32, and the circular head 25 of the bolt 3 is fitted into the case 32 so as to be rotatable and slidable. The male threaded portion 33 is screwed and fixed to the end fitting 24, but the other structure is the same as the bolted chord member shown in FIG.
第１８図の場合は、ボルト３をケース３２およ
び端部金具２４の透孔２によりガイドしてスムー
ズに移動させることができる。またケース３２と
端部金具２４との螺合部に予め接着剤を塗布して
から螺合してもよい。 In the case of FIG. 18, the bolt 3 can be guided by the case 32 and the through hole 2 of the end fitting 24 and moved smoothly. Alternatively, the case 32 and the end fitting 24 may be screwed together after applying an adhesive to the screwed portion thereof in advance.
ボルト３としては第１９図および第２０図に示
すように、ボルト先端に６角形その他の非円形の
回転工具係合用軸部３４を設けたものを使用して
もよく、また端部金具２４にボルト３の弛みを防
止するための押ねじを螺合してもよい。 As shown in FIGS. 19 and 20, the bolt 3 may have a hexagonal or other non-circular shaft portion 34 for engaging a rotating tool at its tip, and the end fitting 24 may have a hexagonal or other non-circular shaft portion 34 for engaging a rotating tool. A set screw may be screwed together to prevent the bolt 3 from loosening.
この発明によれば、弦材１の端部に設けられた
ボルト挿通用透孔２に弦材内部側からボルト３の
軸部４を挿入し、そのボルト３にはボルト押出用
ばね５を係合させ、弦材１の端部を、操作用開口
部６およびボルト螺合用ねじ孔７を備えている球
殻状の接合金具８の外面に対向させ、かつボルト
押出用ばね５の力によりボルト３の軸部４の先端
部を前記ねじ孔７の端部に係合させ、次に前記ボ
ルト３を接合金具内部からの接作により回動して
接合金具８のねじ孔７に螺合するので、球殻状の
接合金具８内にボルト３の頭部が存在しないよう
にして、弦材１と接合金具８とをボルト３により
結合することができ、そのため接合金具８内にボ
ルトの頭部が存在している前記従来の場合の問題
を解決することができ、かつボルト３全体を接合
金具８内に挿入する必要がなく、したがつて接合
金具８の径を小さくしてその重量を大巾に減少さ
せることができると共に、接合金具８を低コスト
で製作することができ、さらにボルト３は予め工
場で製作される弦材１内に収納されているので、
トラス組立現場での作業性がよく、かつ部品管理
も容易で、省力化を計ることができるため組立コ
ストを大巾に低減することができ、また特にこの
発明の場合は、ボルト押出用ばね５の力により、
ボルト３の軸部４の先端が接合金具８のねじ孔７
の端部に押付けられた状態に保持されるので、ボ
ルト３を接合金具８内からの操作により引寄せて
ねじ孔７の端部に係合させるという操作を行なう
ことなく、単にボルト３を回動する操作を行なう
だけで、ボルト３をねじ孔７に螺合することがで
きる等の効果が得られる。 According to this invention, the shaft portion 4 of the bolt 3 is inserted from the inside of the string member into the bolt insertion hole 2 provided at the end of the string member 1, and the bolt extrusion spring 5 is engaged with the bolt 3. The ends of the string members 1 are made to face the outer surface of the spherical shell-shaped joint fitting 8, which is provided with an operating opening 6 and a threaded hole 7 for bolt engagement, and the bolt is pushed out by the force of the bolt extrusion spring 5. The tip of the shaft portion 4 of No. 3 is engaged with the end of the screw hole 7, and then the bolt 3 is rotated by engagement from inside the joint and screwed into the screw hole 7 of the joint. Therefore, the string member 1 and the joining fitting 8 can be connected by the bolt 3 without the head of the bolt 3 existing inside the spherical shell-shaped joining fitting 8. In addition, it is not necessary to insert the entire bolt 3 into the joint 8, and therefore the diameter of the joint 8 can be reduced to reduce its weight. In addition to being able to reduce the width to a large extent, the joining fittings 8 can be manufactured at low cost, and since the bolts 3 are housed in the chord material 1 that is manufactured in advance at the factory,
Workability at the truss assembly site is good, parts management is easy, and labor can be saved, so assembly costs can be greatly reduced. Due to the power of
The tip of the shaft portion 4 of the bolt 3 is connected to the screw hole 7 of the joining fitting 8
Since the bolt 3 is held pressed against the end of the screw hole 7, the bolt 3 can be simply rotated without having to pull the bolt 3 from inside the fitting 8 and engage it with the end of the screw hole 7. Effects such as being able to screw the bolt 3 into the screw hole 7 can be obtained by simply performing a moving operation.
第１図は従来の立体トラスの部材接合部を示す
平面図、第２図はそのＡ−Ａ線断面図、第３図は
従来の部材接合部におけるボルト頭部と回動工具
のソケツトとのせり合い状態を示す図、第４図は
従来の部材接合部におけるボルト挿入途中の状態
を示す図である。第５図ないし第１６図はこの発
明の一実施例を示すものであつて、第５図はボル
ト付き弦材の一部切欠縦断面側面図、第６図はそ
の弦材におけるばね支持部の斜視図、第７図は接
合金具の縦断側面図、第８図は座金の縦断側面
図、第９図は座金の正面図、第１０図は弦材の端
部に座金を当接した状態を示す縦断側面図、第１
１図ないし第１４図は弦材と接合金具との接合順
序を示す縦断側面図、第１５図は立体トラスの部
材接合部を示す平面図、第１６図はそのＢ−Ｂ線
断面図である。第１７図は２本の弦材を最も接近
させて接合金具に接合した状態を示す縦断側面
図、第１８図はボルト付き弦材の他の例を示す縦
断側面図である。第１９図はボルトの他の例を示
す側面図、第２０図はその正面図である。
図において、１は弦材、２はボルト挿通用透
孔、３はボルト、４は軸部、５はボルト押出用ば
ね、６は操作用開口部、７はボルト螺合用ねじ
孔、８は接合金具、２０はボルト付き弦材、２１
は鋼管部材、２２はばね支承板、２３はばね係止
片、２４は鋼製端部金具、２６は回動工具係合用
凹部、２８は座金、２９は凹球面、３１は回動工
具、３２はケースである。
Fig. 1 is a plan view showing a conventional three-dimensional truss member joint, Fig. 2 is a sectional view taken along the line A-A, and Fig. 3 is a diagram showing the connection between a bolt head and a rotating tool socket in a conventional member joint. FIG. 4 is a diagram showing a state in which a bolt is being inserted in a conventional member joint. 5 to 16 show an embodiment of the present invention, in which FIG. 5 is a partially cutaway vertical cross-sectional side view of a string member with bolts, and FIG. 6 is a side view of a spring support portion of the chord member. FIG. 7 is a vertical side view of the joining fitting, FIG. 8 is a vertical side view of the washer, FIG. 9 is a front view of the washer, and FIG. 10 shows the washer in contact with the end of the chord. Longitudinal side view shown, 1st
Figures 1 to 14 are longitudinal sectional side views showing the order of joining the chord members and the joining fittings, Figure 15 is a plan view showing the member joints of the three-dimensional truss, and Figure 16 is a sectional view taken along the line B-B. . FIG. 17 is a longitudinal side view showing a state in which two chord members are brought closest to each other and joined to a joining fitting, and FIG. 18 is a longitudinal side view showing another example of a bolted chord member. FIG. 19 is a side view showing another example of the bolt, and FIG. 20 is a front view thereof. In the figure, 1 is a chord member, 2 is a through hole for bolt insertion, 3 is a bolt, 4 is a shaft, 5 is a spring for extruding the bolt, 6 is an opening for operation, 7 is a screw hole for screwing the bolt, and 8 is a joint Metal fittings, 20 are string materials with bolts, 21
2 is a steel pipe member, 22 is a spring support plate, 23 is a spring locking piece, 24 is a steel end fitting, 26 is a recess for engaging a rotary tool, 28 is a washer, 29 is a concave spherical surface, 31 is a rotary tool, 32 is the case.
Claims (1)
２に弦材内部側からボルト３の軸部４を挿入し、
そのボルト３にはボルト押出用ばね５を係合さ
せ、弦材１の端部を、操作用開口部６およびボル
ト螺合用ねじ孔７を備えている球殻状の接合金具
８の外面に対向させ、かつボルト押出用ばね５の
力によりボルト３の軸部４の先端部を前記ねじ孔
７の端部に係合させ、次に前記ボルト３を接合金
具内部からの操作により回動して接合金具８のね
じ孔７に螺合し、前記ボルト３により弦材１の端
部と接合金具８とを締付結合することを特徴とす
る立体トラスの部材接合方法。1. Insert the shaft part 4 of the bolt 3 from the inside of the string material into the bolt insertion hole 2 provided at the end of the string material 1,
A bolt extrusion spring 5 is engaged with the bolt 3, and the end of the chord member 1 is opposed to the outer surface of a spherical shell-shaped joint fitting 8, which is provided with an operating opening 6 and a screw hole 7 for screwing the bolt. and the tip of the shaft 4 of the bolt 3 is engaged with the end of the screw hole 7 by the force of the bolt extrusion spring 5, and then the bolt 3 is rotated by operation from inside the joining fitting. A method for joining members of a three-dimensional truss, which comprises screwing into a screw hole 7 of a joining fitting 8 and tightening the end of the chord member 1 and the joining fitting 8 using the bolt 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8349883A JPS59210135A (en) | 1983-05-14 | 1983-05-14 | Member connection of three-dimensional truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8349883A JPS59210135A (en) | 1983-05-14 | 1983-05-14 | Member connection of three-dimensional truss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59210135A JPS59210135A (en) | 1984-11-28 |
| JPH0130979B2 true JPH0130979B2 (en) | 1989-06-22 |
Family
ID=13804138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8349883A Granted JPS59210135A (en) | 1983-05-14 | 1983-05-14 | Member connection of three-dimensional truss |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59210135A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63127503U (en) * | 1987-02-10 | 1988-08-22 | ||
| JPS6439434A (en) * | 1987-08-05 | 1989-02-09 | Tatsumi Tanaka | Joint structure of three-dimensional truss |
-
1983
- 1983-05-14 JP JP8349883A patent/JPS59210135A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59210135A (en) | 1984-11-28 |
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