JPH0468415B2 - - Google Patents
Info
- Publication number
- JPH0468415B2 JPH0468415B2 JP6343485A JP6343485A JPH0468415B2 JP H0468415 B2 JPH0468415 B2 JP H0468415B2 JP 6343485 A JP6343485 A JP 6343485A JP 6343485 A JP6343485 A JP 6343485A JP H0468415 B2 JPH0468415 B2 JP H0468415B2
- Authority
- JP
- Japan
- Prior art keywords
- lattice
- connecting plate
- members
- center
- plate
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 19
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 239000012779 reinforcing material Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005493 welding type Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は立体トラスドームにおける部材が交わ
る節点の装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a device at a node where members intersect in a three-dimensional truss dome.
（従来の技術）
従来、ドーム屋根面を構成する立体トラスドー
ム、例えば第４図に示すような立体トラスのラメ
ラドームＤの節点部Ｐにおけるジヨイント部材に
は種々のものが提案されている。そこで、その幾
つかの例を示すと、第１例として半球形ジヨイン
ト金物に主材を軸方向に配した１本のハイテンシ
ヨンボルトで連結した引張ボルト型のもの、第２
例としてジヨイント金物に主材を差入れて連結部
分を溶接した溶接型のもの、第３例としてワツク
スマンの継手のようなせん断ボルト型等種々の型
式のものがある。(Prior Art) Conventionally, various types of joint members have been proposed at the node portions P of a lamellar dome D of a three-dimensional truss dome constituting the roof surface of a dome, for example, a three-dimensional truss as shown in FIG. Therefore, some examples are shown below.The first example is a tension bolt type in which hemispherical joint hardware is connected with a single high tension bolt with the main material arranged in the axial direction, and the second
For example, there are various types such as a welding type in which the main material is inserted into a joint metal fitting and the connecting portion is welded, and a third example is a shear bolt type such as Waxmann's joint.
（発明が解決しようとする問題点）
上記いずれの節点装置も、特別に加工したジヨ
イント部材を必要とするのでそれだけ加工手間や
加工コストがかかり、その上特別な施工技術が必
要となり、そして第１例の引張ボルト型ではボル
ト部分に過大な応力が集中するために高強度の材
質が要求され、主材の角度調整がしにくく、第２
例の溶接型では現場での溶接作業が必要となるの
で、ジヨイント作業に手間がかかると共に高所で
の溶接作業であるために安全性に問題がある。(Problems to be Solved by the Invention) All of the above-mentioned joint devices require specially processed joint members, which increases processing time and processing costs, and also requires special construction techniques. In the tension bolt type example, excessive stress is concentrated on the bolt part, so high-strength materials are required, making it difficult to adjust the angle of the main material, and making it difficult to adjust the angle of the main material.
The welding type, as an example, requires welding work on site, which requires time and effort for the joint work, and poses a safety problem because the welding work is performed at a high place.
本発明の第１の目的は上記の問題点を解決する
ことにあり、第２の目的は施工性の向上を図るこ
とにある。 The first objective of the present invention is to solve the above problems, and the second objective is to improve workability.
（問題点を解決するための手段）
本発明は上記せん断ボルト型に属するもので、
解決手段は、梁端部が節点部Ｐのセンターを中心
として所定間隔を置いて向かい合うラチス梁１
と、向かい合うラチス梁の端部間をボルト４，６
接合により連結する上下の両連結板２，３と、両
連結板のうち一方の連結板内面に設けた補強材７
とからなるものである。上記ラチス梁１は、梁端
の上下両弦材１ａ，１ｂ間をつなぎ材１ｃで連結
し、ラチスバー１ｄのうちつなぎ材に近接してい
るラチスバー１d1の一端部をつなぎ材に連結して
ある。上連結板２は向かい合う各ラチス梁端の上
弦材間１ａを連結し、下連結板３は梁端の下弦材
１ｂ間を連結している。補強材は、ラチスバーと
つなぎ材との連結部分寄りの一方の連結板の内面
に固着し、つなぎ材間をボルト９接合により連結
している。(Means for solving the problems) The present invention belongs to the above-mentioned shear bolt type,
The solution is to create a lattice beam 1 in which the beam ends face each other at a predetermined distance with the center of the node P as the center.
and bolts 4 and 6 between the opposite ends of the lattice beams.
Both upper and lower connecting plates 2 and 3 connected by joining, and a reinforcing material 7 provided on the inner surface of one of the connecting plates
It consists of. In the lattice beam 1, the upper and lower chord members 1a and 1b at the end of the beam are connected by a connecting member 1c, and one end of the lattice bar 1d 1 which is close to the connecting member among the lattice bars 1d is connected to the connecting member. . The upper connecting plate 2 connects the upper chord members 1a at the ends of the opposing lattice beams, and the lower connecting plate 3 connects the lower chord members 1b at the ends of the beams. The reinforcing material is fixed to the inner surface of one of the connecting plates near the connecting portion between the lattice bar and the connecting material, and the connecting materials are connected by bolts 9.
（実施例）
第１，２図において、節点部Ｐにはそのセンタ
ーを中心として６本のラチス梁１…が向かい合
い、各ラチス梁端部はセンターから所定間隔を置
いて位置している。ラチス梁１の上下両弦材１
ａ，１ｂにはＴ形鋼を用いてあり、弦材端部間は
Ｔ形鋼のつなぎ材１ｃで溶接接合により連結して
いる。ラチス梁１のラチスバー１ｄはパイプを用
いて、上下両端部を溶接で上下両弦材１ａ，１ｂ
にそれぞれ固着してあるが、つなぎ材１ｃに近接
するラチス材１d1の下端部だけはつなぎ材のフラ
ンジ下部に溶接により固着してある。(Embodiment) In FIGS. 1 and 2, six lattice beams 1 face each other at a node P with its center as the center, and the ends of each lattice beam are located at a predetermined distance from the center. Both upper and lower chord members 1 of lattice beam 1
T-shaped steel is used for a and 1b, and the ends of the chord members are connected by welding with a T-shaped steel connecting member 1c. The lattice bar 1d of the lattice beam 1 is made of pipes, and the upper and lower ends are welded to both the upper and lower chord members 1a, 1b.
However, only the lower end of the lattice material 1d1 adjacent to the connecting material 1c is fixed to the lower part of the flange of the connecting material by welding.
各ラチス梁１の互いに向かい合う梁端部間は、
１枚の円板状の鉄板からなる連結板２及び３でボ
ルト接合により連結し、両連結板の中心が節点部
Ｐのセンターと一致している。すなわち各ラチス
梁における互いに向かい合う上弦材１ａのフラン
ジ端部上面には１枚の上連結板２が位置し、この
連結板とフランジとはボルト４により相互に結合
している。上連結板２の下面にこの連結板と同心
的に補強用鋼管５の上端部を固着して、連結板の
補強を図つている。なお、この鋼管の外周面又は
内周面に軸心方向にリブを設けて鋼管の補強をし
てもよい。また下方の連結板３も上連結板２と同
様にボルト６によつて下弦材１ｂのフランジ端部
間を連結している。そして下連結板３の内面に
は、第１〜３図に示すように６枚の鉄板７ａを節
点部Ｐのセンターで合体させた補強材であるリブ
プレート７が立設してある。各鉄板７ａは各ラチ
ス梁のつなぎ材１ｃのウエブに突合せてあり、対
向する鉄板とウエブと間に継ぎ板８を当ててボル
ト９で両者を接合している。各鉄板７ａは継ぎ板
８を介して下弦材１ｂのウエブともボルト接合し
ている。第２図に示すようにリブプレート７に
は、各ラチス梁の端部に位置するラチスバー１d1
の下端部が集中し、ボルト６，８の接合部分に応
力が集中しないようにしてある。なお、第３図に
おいて、３ａは下連結板３に設けたボルト６が挿
通するボルト孔、７a1はリブプレートの各鉄板７
ａに設けたボルト９が挿通するボルト孔である。 Between the mutually opposing beam ends of each lattice beam 1,
Connecting plates 2 and 3 made of a single disk-shaped iron plate are connected by bolts, and the centers of both connecting plates coincide with the center of the node P. That is, one upper connecting plate 2 is located on the upper surface of the flange ends of the upper chord members 1a facing each other in each lattice beam, and this connecting plate and the flange are connected to each other by bolts 4. The upper end portion of the reinforcing steel pipe 5 is fixed to the lower surface of the upper connecting plate 2 concentrically with the connecting plate, thereby reinforcing the connecting plate. Note that the steel pipe may be reinforced by providing ribs in the axial direction on the outer or inner peripheral surface of the steel pipe. Similarly to the upper connecting plate 2, the lower connecting plate 3 also connects the flange ends of the lower chord member 1b with bolts 6. On the inner surface of the lower connecting plate 3, as shown in FIGS. 1 to 3, a rib plate 7, which is a reinforcing material made by combining six iron plates 7a at the center of the node P, is erected. Each iron plate 7a is butted against the web of the connecting material 1c of each lattice beam, and a joint plate 8 is placed between the opposing iron plate and the web, and bolts 9 are used to join them together. Each iron plate 7a is also bolted to the web of the lower chord member 1b via a joint plate 8. As shown in FIG. 2, the rib plate 7 has a lattice bar 1d 1 located at the end of each lattice beam.
The stress is concentrated at the lower end of the bolts 6 and 8 to prevent stress from concentrating at the joint between the bolts 6 and 8. In addition, in FIG. 3, 3a is a bolt hole through which the bolt 6 provided on the lower connecting plate 3 is inserted, and 7a1 is each iron plate 7 of the rib plate.
This is the bolt hole through which the bolt 9 provided at a is inserted.
次に組立について説明する。 Next, assembly will be explained.
まず、台上に第３図に示す下連結板３を載置
し、ついでこの連結板上のリブプレート７の囲り
に各ラチス梁１ａの端部を置いて、この端部とリ
ブプレートの各鉄板７ａとを対向させて、連結板
と下弦材１ｂとをボルト６で接合し、各鉄板とつ
なぎ材１ｃ、下弦材１ｂのウエブとを継ぎ板８を
介してボルト９で接合する。最後に、上弦材１ａ
のフランジ端部上に上連結板２を載せて、同時に
鋼管５を向かい合う上弦材間に位置させて、連結
板を上弦材にボルト４で後付けする。 First, place the lower connecting plate 3 shown in FIG. 3 on a table, then place the end of each lattice beam 1a around the rib plate 7 on this connecting plate, and connect this end to the rib plate. With each iron plate 7a facing each other, the connecting plate and the lower chord member 1b are joined with bolts 6, and each iron plate and the connecting member 1c and the web of the lower chord member 1b are joined with bolts 9 via a joint plate 8. Finally, the upper chord material 1a
The upper connecting plate 2 is placed on the flange end of the upper chord member, and at the same time, the steel pipe 5 is positioned between the upper chord members facing each other, and the connecting plate is later attached to the upper chord member with bolts 4.
（発明の効果）
以上説明したように本発明によれば、本装置を
特別加工した部材を用いることなく構成できるの
で、加工手間がかからず加工上のコストダウンを
図ることができ、在来の施工技術で施工できて特
殊な施工技術が不要となり、そして組立時に、補
強材を有しない一方の連結板は後付けできるので
組立てが容易となり施工性が良く、構成部材であ
るラチス梁と両連結板、つなぎ材と補強材のそれ
ぞれの結合は溶接接合でなくボルト接合であるの
でラチス梁の角度調整がしやすく、安全であり、
ボルト接合部分に過大な応力集中が生ずることが
なく、従来の引張ボルト型のように高強度の材質
を必要としない。さらにラチスバーの一端部をす
べて節点に集中させているので、上下の連結板を
つなぐ束材が不要となり、それだけ軽量化が図れ
る。(Effects of the Invention) As explained above, according to the present invention, this device can be constructed without using specially processed members, so it is possible to reduce processing costs without requiring processing effort, and This construction technique eliminates the need for special construction techniques, and during assembly, one connecting plate without reinforcing material can be attached later, making assembly easier and easier to construct. The plates, connecting materials, and reinforcing materials are connected by bolts rather than welding, making it easy to adjust the angle of the lattice beams, and it is safe.
Excessive stress concentration does not occur in the bolted joint, and high-strength materials are not required as in the conventional tension bolt type. Furthermore, since one end of the lattice bar is all concentrated at a node, there is no need for a bundle material to connect the upper and lower connecting plates, and the weight can be reduced accordingly.
第１図は一部切欠平面図、第２図は第１図−
線断面図、第３図は下連結板の斜視図、第４図
はラメラドームの斜視図である。
１……ラチス梁、１ａ……上弦材、１ｂ……下
弦材、１ｃ……つなぎ材、１ｄ，１d1……ラチス
バー、２，３……連結板、４……ボルト、６……
ボルト、７……補強材、７ａ……鉄板、９……ボ
ルト、Ｐ……節点部。
Figure 1 is a partially cutaway plan view, Figure 2 is Figure 1-
A line sectional view, FIG. 3 is a perspective view of the lower connecting plate, and FIG. 4 is a perspective view of the lamellar dome. 1... Lattice beam, 1a... Upper chord member, 1b... Lower chord member, 1c... Connecting material, 1d, 1d 1 ... Lattice bar, 2, 3... Connecting plate, 4... Bolt, 6...
Bolt, 7...Reinforcement material, 7a...Iron plate, 9...Bolt, P...Node part.
Claims (1)
間隔を置いて向かい合い、梁端部で上下両弦材間
をつなぎ材で連結し、ラチスバーのうち上記つな
ぎ材に隣接するラチスバーの一端部がつなぎ材に
連結してあるラチス梁と、 上記センターを中心として向かい合うラチス梁
端の上弦材間をボルト接合により連結する上連結
板と、下弦材間をボルト接合により連結する下連
結板と、 上下両連結板のうち、上記ラチスバーとつなぎ
材との連結部分側に位置する一方の連結板の内面
に固着しかつ向かい合うつなぎ材間をボルト接合
により連結する補強材とを具備する立体トラスド
ームの節点装置。 ２ 特許請求の範囲第１項において、補強材は、
節点部のセンターから各ラチス梁のつなぎ材に向
けてそれぞれ配した鉄板からなるリブプレートで
あることを特徴とする立体トラスドームの節点装
置。[Scope of Claims] 1. Beam ends face each other at a predetermined distance from each other centering on the center of the nodal point, the upper and lower chord members are connected at the beam ends by a connecting material, and the lattice bar is adjacent to the connecting material. A lattice beam in which one end of the lattice bar is connected to a tie member, an upper connecting plate that connects the upper chord members of opposite ends of the lattice beam around the center by bolt joints, and a lower connecting plate that connects the lower chord members by bolt joints. The reinforcing member is provided with a connecting plate, and a reinforcing member that is fixed to the inner surface of one of the upper and lower connecting plates, which is located on the side where the lattice bar and the connecting member are connected, and that connects the facing connecting members by bolting. Nodal device of three-dimensional truss dome. 2 In claim 1, the reinforcing material is
A nodal device for a three-dimensional truss dome, characterized by rib plates made of iron plates arranged from the center of the nodal portion toward the connecting members of each lattice beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6343485A JPS61225440A (en) | 1985-03-29 | 1985-03-29 | Joint apparatus of three-dimensional truss dome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6343485A JPS61225440A (en) | 1985-03-29 | 1985-03-29 | Joint apparatus of three-dimensional truss dome |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61225440A JPS61225440A (en) | 1986-10-07 |
| JPH0468415B2 true JPH0468415B2 (en) | 1992-11-02 |
Family
ID=13229162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6343485A Granted JPS61225440A (en) | 1985-03-29 | 1985-03-29 | Joint apparatus of three-dimensional truss dome |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61225440A (en) |
-
1985
- 1985-03-29 JP JP6343485A patent/JPS61225440A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61225440A (en) | 1986-10-07 |
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