JP2003268873A - Truss member - Google Patents
Truss memberInfo
- Publication number
- JP2003268873A JP2003268873A JP2002068548A JP2002068548A JP2003268873A JP 2003268873 A JP2003268873 A JP 2003268873A JP 2002068548 A JP2002068548 A JP 2002068548A JP 2002068548 A JP2002068548 A JP 2002068548A JP 2003268873 A JP2003268873 A JP 2003268873A
- Authority
- JP
- Japan
- Prior art keywords
- truss
- synthetic resin
- resin foam
- members
- pipe
- 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.)
- Pending
Links
- 239000006260 foam Substances 0.000 claims abstract description 41
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 36
- 239000000057 synthetic resin Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims description 63
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229920006327 polystyrene foam Polymers 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000011796 hollow space material Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Building Environments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、各種構造物やイン
テリア用品等に使用されるトラスを形成するためのトラ
ス材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 material for forming a truss used for various structures, interior products and the like.
【０００２】[0002]
【従来の技術】各種構造物やインテリア用品等に使用さ
れるトラスは、例えば、図７〜図８に示されているよう
に、縦横の弦材２３，２３からなる上部格子２１と、同
様に縦横の弦材２７，２７からなる下部格子２５と、こ
れらの両格子２１，２５における弦材２３，２３の交点
２２と弦材２７，２７の交点２６とを相互に連結する斜
材２９，２９とで構成されている。上記各弦材２３，２
７や斜材２９は、トラスによって、各交点間毎に分割さ
れた単位長さを有するものや、複数の交点間に跨がる長
さを有するもの、あるいは格子の寸法に対応する長さを
有するものなど、各種の長さのものが使用される。2. Description of the Related Art Trusses used for various structures and interior products are similar to an upper lattice 21 composed of vertical and horizontal chord members 23, 23 as shown in FIGS. A lower lattice 25 composed of vertical and horizontal chords 27, 27, and diagonal members 29, 29 for mutually connecting an intersection point 22 of the chord members 23, 23 and an intersection point 26 of the chord members 27, 27 in these two lattices 21, 25. It consists of and. Each of the above chord members 23, 2
Depending on the truss, 7 or diagonal member 29 has a unit length divided for each intersection, a length that spans a plurality of intersections, or a length corresponding to the size of the lattice. Various lengths are used, such as those that have.
【０００３】このようなトラスを構成する上記弦材や斜
材等のトラス材は、一般に、鉄パイプやアルミパイプ等
の金属製管材によって形成され、その両端部や中間部等
に、管材を押し潰して扁平化すると共にボルト孔を開け
た連結部が形成されている。ところが、中空のトラス材
は、その内部が両端部やボルト孔等を通じて外部に連通
しているため、雨水等が内部に浸入したり、あるいは、
外気の流入により空気中の水分が結露してトラス材内面
に水滴として付着し易い。トラス材の表面は通常ペンキ
等が塗られているため水に触れても腐蝕するおそれはな
いが、トラス材の内部にはペンキ等を塗ることができな
いため、水が浸入したり水滴が付着したりすると、該ト
ラス材が内側から腐蝕するといった問題がある。Truss materials such as the above-mentioned chord members and diagonal members which constitute such a truss are generally formed of metal pipe materials such as iron pipes and aluminum pipes, and the pipe materials are pushed to both ends and intermediate portions thereof. A connection portion is formed which is crushed and flattened and at the same time a bolt hole is opened. However, since the inside of the hollow truss material communicates with the outside through both ends and bolt holes, rainwater may enter the inside, or
Due to the inflow of outside air, the moisture in the air is condensed and tends to adhere to the inner surface of the truss material as water droplets. Since the surface of the truss material is usually painted, there is no risk of corrosion even if it comes in contact with water, but since the paint or the like cannot be painted inside the truss material, water may infiltrate or water droplets may adhere. If this happens, there is a problem that the truss material is corroded from the inside.
【０００４】[0004]
【発明が解決しようとする課題】本発明の技術的課題
は、簡単な構成でトラス材の内部に水が浸入したり水滴
が付着するのを防止することができる、軽量で腐食防止
効果に勝れたトラス材を提供することにある。SUMMARY OF THE INVENTION The technical problem of the present invention is that it has a simple structure and can prevent water from penetrating into the truss material and water droplets from adhering to the inside of the truss material. The purpose is to provide the truss material which was made.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明のトラス材は、金属製の管材の内部の少なく
とも外部と連通する部分に合成樹脂発泡体を充填して形
成したことを特徴とするものである。In order to solve the above-mentioned problems, the truss material of the present invention is formed by filling a synthetic resin foam into at least a portion of the inside of a metal pipe which communicates with the outside. It is a feature.
【０００６】上記構成を有する本発明のトラス材は、合
成樹脂発泡体によって内部への雨水の浸入や外気の流入
等が防止されるため、その内部に水が溜ったり、結露に
より水滴が付着したりするのが防止され、この結果、金
属製の管材の内側が腐蝕するのを確実に防止することが
できる。また、上記合成樹脂発泡体は非常に軽量である
ため、管材の内部に他の充填物を充填したり、管材の代
わりに非中空の無垢の素材を使用する場合に比べて、耐
腐食性のある軽量のトラス材を得ることができる。In the truss material of the present invention having the above-mentioned structure, the synthetic resin foam prevents rainwater from entering the inside and outside air from flowing into the truss material, so that water accumulates inside or water drops adhere due to dew condensation. As a result, it is possible to reliably prevent corrosion of the inside of the metal pipe material. In addition, since the synthetic resin foam is extremely lightweight, it is more resistant to corrosion as compared with the case of filling another filling material inside the pipe material or using a solid non-hollow material instead of the pipe material. You can get some lightweight truss material.
【０００７】本発明においては、上記管材全体に合成樹
脂発泡体を透き間なく充填することもできる。In the present invention, the entire tubular material may be filled with the synthetic resin foam without a gap.
【０００８】また、本発明においては、上記管材の一部
に、該管材を上記合成樹脂発泡体と共に押し潰して扁平
化すると共に、該管材及び合成樹脂発泡体を貫通してボ
ルト孔を穿設することにより、圧縮で高密度化された合
成樹脂発泡体を内蔵する連結部が形成されている。Further, in the present invention, the pipe material is crushed together with the synthetic resin foam to be flattened in a part of the pipe material, and a bolt hole is bored through the pipe material and the synthetic resin foam. By doing so, the connecting portion that contains the synthetic resin foam densified by compression is formed.
【０００９】連結部をこのように構成することにより、
高密度化された合成樹脂発泡体が高いシール機能を発揮
するため、ボルト孔を通じての雨水や外気の浸入を一層
確実に防止することができる。また、合成樹脂発泡体を
充填材として使用したことにより、それを管材と共に圧
縮して扁平化することが可能となり、このようなシール
性に勝れた連結部を構成することができる。By configuring the connecting portion in this way,
Since the densified synthetic resin foam exhibits a high sealing function, it is possible to more reliably prevent rainwater or outside air from entering through the bolt holes. Further, since the synthetic resin foam is used as the filler, it can be compressed and flattened together with the pipe material, so that the connecting portion having excellent sealing property can be formed.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施例を図面に基
づいて詳細に説明する。図１〜図４には本発明に係るト
ラス材の第１実施例が示されている。これらのトラス材
１，２は、図７及び図８に示すようなトラスを形成する
ためのもので、図１及び図２に示すトラス材１は、上下
の格子２１，２５における縦横の弦材２３，２７を形成
するためのものであり、また、図３に示すトラス材２
は、斜材２９を形成するものであって、それぞれ、交点
間毎に分割された単位長さを有するものである。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show a first embodiment of a truss material according to the present invention. These truss members 1 and 2 are for forming a truss as shown in FIGS. 7 and 8, and the truss member 1 shown in FIGS. 1 and 2 is a vertical and horizontal chord member in upper and lower lattices 21 and 25. The truss member 2 for forming 23 and 27 and shown in FIG.
Form the diagonal members 29, each of which has a unit length divided for each intersection.
【００１１】上記各トラス材１，２は、図４に示すよう
に、鉄やアルミニウム等の金属製パイプからなる管材３
の内部に、例えばポリウレタン発泡体やポリスチレン発
泡体等の合成樹脂発泡体４、好ましくは独立気泡を持つ
フォーム状の発泡体４を透き間なく充填し、その両端部
に連結部５を形成したものである。また、各トラス材
１，２の表面は、例えばペンキ等の塗料を塗布したりメ
ッキを施すなどの方法により、耐腐食処理が施されてい
る。The truss members 1 and 2 are, as shown in FIG. 4, a pipe member 3 made of a metal pipe such as iron or aluminum.
A synthetic resin foam 4 such as a polyurethane foam or a polystyrene foam, preferably a foam-like foam 4 having closed cells, is filled in the interior of the resin without gaps, and connecting portions 5 are formed at both ends thereof. is there. Further, the surfaces of the truss members 1 and 2 are subjected to corrosion resistance treatment by a method such as coating with paint such as paint or plating.
【００１２】上記連結部５は、上記管材３を合成樹脂発
泡体４と共に押し潰して扁平化すると共に、該管材３及
び合成樹脂発泡体４を貫通してボルト孔６を穿設するこ
とにより形成されたもので、この連結部５の内部には、
圧縮により他の部分よりも高密度化された合成樹脂発泡
体４ａが内蔵されている。この連結部５は、図１及び図
２に示すトラス材１のように、それが弦材として用いら
れる場合には該トラス材の軸線に沿って真っ直ぐに形成
されるが、図３に示すトラス材２のようにそれが斜材と
して用いられる場合には、該トラス材２の軸線に対して
所要の角度折り曲げて形成される。The connecting portion 5 is formed by crushing the pipe material 3 together with the synthetic resin foam 4 to flatten it and forming a bolt hole 6 through the pipe material 3 and the synthetic resin foam 4. In the inside of this connecting part 5,
The synthetic resin foam body 4a, which has a higher density than the other parts by compression, is built in. This connecting portion 5 is formed straight along the axis of the truss material when it is used as a chord material, like the truss material 1 shown in FIGS. 1 and 2, but the truss shown in FIG. When it is used as a diagonal material like the material 2, it is formed by bending it at a required angle with respect to the axis of the truss material 2.
【００１３】上記各トラス材１，２を用いて図７及び図
８に示すようなトラスを組み立てる際には、これらのト
ラス材１，２を各弦材２３，２７及び斜材２９，２９を
形成するように所要の向きに配置し、それらの連結部５
同士をスペーサを介してまたはスペーサを介さずに直接
重ね合わせ、これらの連結部５のボルト孔６にボルトを
挿通し、その後、該ボルトに螺着したナットを締めつけ
ることによりこれらのトラス材１，２が相互に連結され
る。When assembling the truss as shown in FIGS. 7 and 8 by using the truss members 1 and 2, the truss members 1 and 2 are attached to the chord members 23 and 27 and the diagonal members 29 and 29, respectively. Arrange them in the desired orientation to form and connect them 5
These truss members 1, 1 are directly superposed on each other with or without a spacer, the bolts are inserted into the bolt holes 6 of these connecting portions 5, and then the nuts screwed to the bolts are tightened. Two are connected to each other.
【００１４】かくして形成されたトラスにおいては、各
トラス材１，２の内部に充填した合成樹脂発泡体４によ
って該トラス材内部への水の浸入や外気の流入等が防止
されるため、その内部に水が溜ったり、空気中の水分が
結露して水滴が付着したりすることがなく、金属製の管
材３の内側の錆びや腐蝕等が確実に防止されて防錆効果
や耐久性に勝れる。特に、上記連結部５は、上記管材３
を合成樹脂発泡体４と共に押し潰して扁平化すると共
に、該管材３及び合成樹脂発泡体４を貫通してボルト孔
６を穿設した構成であるため、該連結部５の内部には他
の部分よりも高密度化されてシール機能が高められた合
成樹脂発泡体４ａが内蔵されており、これにより、管材
３の端部や上記ボルト孔６を通じて水等が浸透するのが
一層確実に防止されることになる。このため、上記トラ
スを地中に埋設した状態で設置したり、河川や湖沼ある
いは海などの水中に直接浸漬させた状態で設置すること
もできる。また、トラス材１，２にビスで種々の金物類
を取り付けることもあるが、このような場合でも、合成
樹脂発泡体４によってビス孔からトラス材１，２の内部
に水が浸入するのを確実に防止することができる。更
に、上記合成樹脂発泡体４は非常に軽量であるため、管
材３の内部に他の充填物を充填したり、管材３の代わり
に非中空の無垢の素材を使用する場合に比べて、耐腐食
性のある軽量のトラス材を得ることができる。In the truss thus formed, the synthetic resin foam 4 filled inside the truss members 1 and 2 prevents water from entering the truss member and the inflow of outside air. The water does not collect on the inside or the water in the air is condensed to form water droplets, and rust and corrosion on the inside of the metal pipe material 3 are reliably prevented, and the rust prevention effect and durability are achieved. Be done. In particular, the connecting portion 5 is the pipe member 3
Is crushed together with the synthetic resin foam 4 to be flattened, and the bolt hole 6 is bored through the pipe material 3 and the synthetic resin foam 4. The synthetic resin foam 4a, which has a higher density than that of the portion and has a higher sealing function, is built in, so that water and the like can be more reliably prevented from permeating through the end portion of the pipe material 3 and the bolt hole 6. Will be done. Therefore, it is possible to install the truss in a state of being buried in the ground or in a state of being directly immersed in water such as a river, lake or marine. In addition, various metal fittings may be attached to the truss members 1 and 2 with screws. Even in such a case, it is possible to prevent water from entering the truss members 1 and 2 through the screw holes by the synthetic resin foam 4. It can be surely prevented. Furthermore, since the synthetic resin foam 4 is very lightweight, it is more durable than the case of filling the inside of the pipe 3 with another filling material or using a solid non-hollow material instead of the pipe 3. It is possible to obtain a lightweight corrosive truss material.
【００１５】図５及び図６は、本発明に係るトラス材の
第２実施例を示すもので、これらのトラス材１１，１２
は、図７及び図８に示すトラスにおける縦横の弦材の交
点間距離の複数倍の長さを有するように形成されてい
る。図示の例では交点間距離の２倍の長さを有するよう
に形成されており、従って、図５に示す弦材形成用のト
ラス材１１は、両端と中間位置とにそれぞれ連結部５が
形成され、図６に示す斜材形成用のトラス材１２は、全
体としてＶ字形に形成され、その両端と中間位置とにそ
れぞれ連結部５を備えている。そして、これらのトラス
材１１，１２は、上記第１実施例のトラス材１，２と同
様に、管材３の内部に合成樹脂発泡体４を充填すること
により形成されている。このように交点間距離の複数倍
の長さを有するトラス材であっても、本発明は適用する
ことができる。5 and 6 show a second embodiment of the truss material according to the present invention. These truss materials 11 and 12 are shown.
Are formed to have a length that is a multiple of the distance between the intersections of the vertical and horizontal chord members in the truss shown in FIGS. 7 and 8. In the illustrated example, the truss member 11 for chord member formation shown in FIG. 5 is formed to have a length twice the distance between the intersections. The truss member 12 for forming diagonal members shown in FIG. 6 is formed in a V shape as a whole, and has connecting portions 5 at both ends and intermediate positions thereof. These truss members 11 and 12 are formed by filling the inside of the pipe member 3 with the synthetic resin foam 4, similarly to the truss members 1 and 2 of the first embodiment. The present invention can be applied even to a truss material having a length that is a multiple of the distance between the intersections.
【００１６】上記トラス材１，２，１１，１２内に充填
される合成樹脂発泡体４としては、ポリウレタン発泡体
やポリスチレン発泡体等が適している。これらの発泡体
４の充填は、発泡が完了したものを管材３の内部にあと
から挿入するのではなく、管材３の内部に必要な原料を
入れて発泡させることにより、該管材３の内面に密着し
た状態に充填する。ポリウレタン発泡体の場合は、管材
３の内部でポリエステルとイソシアネートとを反応させ
ることによって発泡成形することができ、ポリスチレン
発泡体の場合は、ガス化しやすい膨張剤を予め溶かし込
んだ発泡性ポリスチレンを管材３の内部に収容し、該管
材３を加熱して発泡させることによって形成することが
できる。なお、このような発泡の方法そのものについて
は既に公知であるから、ここでのこれ以上の説明は省略
する。Polyurethane foam, polystyrene foam and the like are suitable as the synthetic resin foam 4 filled in the truss members 1, 2, 11 and 12. The filling of these foams 4 does not insert the foamed material into the inside of the pipe material 3 afterwards, but puts necessary raw materials inside the pipe material 3 and foams the foamed material to the inside surface of the pipe material 3. Fill in close contact. In the case of polyurethane foam, it can be foam-molded by reacting polyester and isocyanate inside the tube 3, and in the case of polystyrene foam, expandable polystyrene in which a gasifying expansive agent is previously dissolved is used. It can be formed by accommodating it inside 3 and heating the tubular material 3 to foam it. Since such a foaming method itself is already known, further description is omitted here.
【００１７】上記トラス材１２，１１，１２は、予め必
要な長さに形成した管材３の内部に合成樹脂発泡体４を
充填して形成しても良いが、長尺の管材３の内部に合成
樹脂発泡体４を充填したあと、この管材３を必要な長さ
に切断して形成しても良い。実験によれば、約５ｍ程度
の長さの管材であっても、上記合成樹脂発泡体４を発泡
と同時に充填させることができる。The truss members 12, 11, 12 may be formed by filling the synthetic resin foam 4 inside the pipe member 3 formed in advance to a required length. After filling the synthetic resin foam 4, the tube material 3 may be cut into a required length to be formed. According to the experiment, the synthetic resin foam 4 can be filled at the same time as the foaming even for a pipe material having a length of about 5 m.
【００１８】また、上記各実施例では、トラス材１，
２，１１，１２の内部全体に合成樹脂発泡体４が透き間
なく充填されているが、例えばトラス材の端部やボルト
孔６が開けられている連結部５のような、少なくとも内
部と外部とが連通する部分に充填されていれば、本発明
の目的は十分に達成することができる。この場合には、
発泡体４を管材３の内部の所要の位置にあとから挿入し
ても良い。In each of the above embodiments, the truss members 1,
The synthetic resin foam 4 is filled in the entire insides of 2, 11, 12 without a gap, but at least the inside and the outside, such as the end portion of the truss material or the connecting portion 5 in which the bolt holes 6 are opened. The object of the present invention can be sufficiently achieved if the portions communicating with are filled. In this case,
The foam 4 may be inserted later at a desired position inside the pipe material 3.
【００１９】[0019]
【発明の効果】このように、本発明によれば、管材の内
部に合成樹脂発泡体４を充填するという簡単な構成で、
該トラス材の内部に水が浸入したり水滴が付着するのを
確実に防止することができる、軽量で腐食防止効果に勝
れたトラス材を提供することができる。As described above, according to the present invention, the synthetic resin foam 4 is filled in the inside of the pipe material,
It is possible to provide a lightweight truss material which is capable of reliably preventing water from entering or water droplets from adhering to the inside of the truss material and which is excellent in the corrosion prevention effect.
【図１】本発明の第１実施例を示した弦材形成用のトラ
ス材の平面図である。FIG. 1 is a plan view of a truss member for forming chord members showing a first embodiment of the present invention.
【図２】図１の側面図である。FIG. 2 is a side view of FIG.
【図３】本発明の第１実施例を示した斜材形成用のトラ
ス材の平面図である。FIG. 3 is a plan view of a truss member for forming diagonal members according to the first embodiment of the present invention.
【図４】図１の要部拡大断面図である。FIG. 4 is an enlarged cross-sectional view of a main part of FIG.
【図５】本発明の第２施例を示した弦材形成用のトラス
材の平面図である。FIG. 5 is a plan view of a truss member for forming a chord member showing a second embodiment of the present invention.
【図６】本発明の第２施例を示した斜材形成用のトラス
材の平面図である。FIG. 6 is a plan view of a truss member for forming diagonal members showing a second embodiment of the present invention.
【図７】一般的なトラスの全体的構成を示す平面図であ
る。FIG. 7 is a plan view showing the overall configuration of a general truss.
【図８】同側面図である。FIG. 8 is a side view of the same.
【符号の説明】 １，２，１１，１２ トラス材 ３ 管材 ４，４ａ 合成樹脂発泡体 ５ 連結部 ６ 連結孔[Explanation of symbols] 1,2,11,12 truss material 3 tubing 4,4a synthetic resin foam 5 connection 6 connecting holes
Claims (3)
するトラス材であって、金属製の管材の内部の少なくと
も外部と連通する部分に合成樹脂発泡体を充填して形成
したことを特徴とするトラス材。Claim: What is claimed is: 1. A truss material that forms a truss by connecting them to each other, characterized in that it is formed by filling a synthetic resin foam into at least a portion of the inside of a metal pipe that communicates with the outside. Truss material.
く充填されていることを特徴とする請求項１に記載のト
ラス材。2. The truss material according to claim 1, wherein the entire tubular material is filled with a synthetic resin foam without a gap.
発泡体と共に押し潰して扁平化すると共に、該管材及び
合成樹脂発泡体を貫通してボルト孔を穿設することによ
り、圧縮で高密度化された合成樹脂発泡体を内蔵する連
結部が形成されていることを特徴とする請求項１又は２
に記載のトラス材。3. A compression is performed by crushing the tubular material together with the synthetic resin foam to flatten it and making a bolt hole through a portion of the tubular material and the synthetic resin foam. 3. A connecting portion that contains a synthetic resin foam densified by 1. is formed.
Truss material described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002068548A JP2003268873A (en) | 2002-03-13 | 2002-03-13 | Truss member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002068548A JP2003268873A (en) | 2002-03-13 | 2002-03-13 | Truss member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003268873A true JP2003268873A (en) | 2003-09-25 |
Family
ID=29199621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002068548A Pending JP2003268873A (en) | 2002-03-13 | 2002-03-13 | Truss member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003268873A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100665959B1 (en) * | 2005-08-25 | 2007-01-09 | 현대엔지니어링 주식회사 | Steel joist using concrete filled steel pipe web material |
| KR100711484B1 (en) | 2005-12-26 | 2007-04-24 | 주식회사 포스코 | Stand-alone construction equipment and construction method of middle-tier steel house using it |
| JP2017019193A (en) * | 2015-07-10 | 2017-01-26 | 東京電力ホールディングス株式会社 | Steel pipe |
-
2002
- 2002-03-13 JP JP2002068548A patent/JP2003268873A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100665959B1 (en) * | 2005-08-25 | 2007-01-09 | 현대엔지니어링 주식회사 | Steel joist using concrete filled steel pipe web material |
| KR100711484B1 (en) | 2005-12-26 | 2007-04-24 | 주식회사 포스코 | Stand-alone construction equipment and construction method of middle-tier steel house using it |
| JP2017019193A (en) * | 2015-07-10 | 2017-01-26 | 東京電力ホールディングス株式会社 | Steel pipe |
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