JPS6020720Y2 - PS multilayer beam - Google Patents
PS multilayer beamInfo
- Publication number
- JPS6020720Y2 JPS6020720Y2 JP10959578U JP10959578U JPS6020720Y2 JP S6020720 Y2 JPS6020720 Y2 JP S6020720Y2 JP 10959578 U JP10959578 U JP 10959578U JP 10959578 U JP10959578 U JP 10959578U JP S6020720 Y2 JPS6020720 Y2 JP S6020720Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- short
- sectional
- completed
- view
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【考案の詳細な説明】
本考案のビームは、外筒体１とその内部に挿入された所
要ケ数の短筒体２よりなり、短筒体２には所要本数のｐ
ｃ鋼材５を挿通するための小孔４を有する支圧部材３を
短筒体２の両端においてその本体と直角方向に装着して
あり、外筒体１内に挿入された全短筒体２に亘り、前記
小孔４を挿通してｐｃ鋼材５を配設し、その両端にて緊
張の後、脱着自在の定着具６，７により定着して形成し
たビームであって、本考案のビームは、外筒体及びプレ
ストレスされた構造の内筒体の協力作用により、ビーム
に作用する曲げモーメント或いは圧縮力等の外力に対し
、強大な抵抗力を発揮する勝れた効果を有しているばか
りでなく、又使用目的が終了したならば、内筒体の前記
定着具を除去し、短筒体を引き抜くことができるので、
これを繰りかえし使用することができる大きな経済性を
有する勝れた効果、利点を持ったビームである。[Detailed description of the invention] The beam of the invention consists of an outer cylindrical body 1 and a required number of short cylindrical bodies 2 inserted into the outer cylindrical body 1.
c A bearing member 3 having a small hole 4 for inserting a steel material 5 is attached at both ends of the short cylinder 2 in a direction perpendicular to the main body, and the entire short cylinder 2 is inserted into the outer cylinder 1. The beam of the present invention is formed by inserting a PC steel material 5 through the small hole 4, tensioning it at both ends, and fixing it with removable fixing devices 6 and 7. The beam has the excellent effect of exerting a strong resistance against external forces such as bending moment or compressive force acting on the beam due to the cooperative action of the outer cylinder and the prestressed inner cylinder. Not only that, but also when the purpose of use is completed, the fixing device of the inner cylinder can be removed and the short cylinder can be pulled out.
This is a beam with excellent effects and advantages that can be used repeatedly and is highly economical.
本考案によるビームの１使用例を次に述べる。An example of the use of the beam according to the invention will now be described.
地中に完成筒体を掘進布設し、トンネル構造物を構築す
る場合、上部の土圧及び動荷重を支持し、かつ切羽の土
砂崩壊を防止するため、在来方法では、単１筒体複数本
を完成筒体上面の地中に並列に貫挿し、ルーフを形成さ
せて、完成筒体を掘進布設し、工事終了後も上部地盤の
沈下を防ぐため、前記高価なルーフはそのま）埋殺しに
しており、甚だ不経済であった。When constructing a tunnel structure by excavating a completed cylindrical body underground, in order to support the upper earth pressure and dynamic load, and to prevent landslides at the face, the conventional method uses multiple single cylindrical bodies. The books were inserted into the ground on the top of the completed cylinder in parallel to form a roof, and the completed cylinder was then dug and laid.In order to prevent the upper ground from sinking even after the construction was completed, the expensive roof was buried (as is). This was extremely uneconomical.
特に上被りの浅い場合は前記の単ｌ筒体群によるルーフ
では高さ制限のため必要な厚さく単１筒体の高さ）にす
ることができず、結果、工事不能になったり、或いは危
険を承知で工事を行い惨事を招く等の事態がおこるが、
本考案のビームを用いてルーフを形成させれば、工事終
了後は内筒体を除去し、比較的安価な外筒体のみを埋殺
せば良く、極めて経済的であり、又上被りの浅い場合は
ビームの高さくルーフの厚さ）を小にしても前記の理に
よって強大な抵抗曲げモーメント力を発生させることが
できるので、安全、確実に完成筒体を掘進させることが
できる勝れた効果、利点を有している。In particular, when the roof is shallow, it is not possible to achieve the necessary thickness (the height of the single cylinder) due to height restrictions with the roof made of the single cylinder group described above, and as a result, construction becomes impossible, or Situations such as carrying out construction work knowing the risks may lead to disasters,
If a roof is formed using the beam of the present invention, the inner cylinder can be removed after construction is completed, and only the relatively inexpensive outer cylinder can be buried, making it extremely economical. Even if the height of the beam and the thickness of the roof are small, it is possible to generate a powerful bending moment force based on the above principle, making it possible to safely and reliably excavate the completed cylindrical body. It has effects and advantages.
以上本考案のビームの１使用例を述べたが、本考案のビ
ームは、一般に断面を小にして大きな抵抗曲げモーメン
ト力を要する場合、或いは一時的に大きな抵抗曲げモー
メント力又は抵抗圧縮力を要する場合に用いて大きな効
果を発揮することができる勝れたビームである。The above is an example of the use of the beam of the present invention, but the beam of the present invention is generally used when the cross section is small and a large resistance bending moment force is required, or when a large resistance bending moment force or resistance compression force is temporarily required. It is an excellent beam that can be used to great effect in various situations.
第１図〜第５図は本考案のｐｓ重層ビームの１実施態様
の図面で、第１図は断面図、第２図は第１図のＡ−Ａ矢
視断面図、第３図は短筒体の正面図、第４図は第３図の
Ｂ−Ｂ矢視断面図、第５図は第４図のＣ−Ｃ矢視断面図
であり、第６図〜第１０図は円型層ビームの別の１実施
態様の図面で、第６図は断面図、第７図は第６図のＤ−
Ｄ矢視断面図、第８図は短筒体の正面図、第９図は第８
図のＥ−Ｃ矢視断面図、第１０図は第９図のＦ−Ｆ矢視
断面図である。
符号、１・・・・・・外筒体、２・・・・・・短筒体、
３・・・・・・支圧部材、４・・・・・・小孔、５・・
・・・・ＰＣ鋼材、６，７・・・・・・定着具。Figures 1 to 5 are drawings of one embodiment of the PS multilayer beam of the present invention, in which Figure 1 is a sectional view, Figure 2 is a sectional view taken along the line A-A in Figure 1, and Figure 3 is a short cross-sectional view. A front view of the cylindrical body, FIG. 4 is a sectional view taken along the line B-B in FIG. 3, FIG. 5 is a sectional view taken along the line C-C in FIG. 4, and FIGS. 6 to 10 are circular Drawings of another embodiment of the layer beam, FIG. 6 being a sectional view and FIG.
D arrow sectional view, Figure 8 is a front view of the short cylinder, Figure 9 is the 8th
10 is a cross-sectional view taken along line F-F in FIG. 9. FIG. Code: 1...Outer cylinder body, 2...Short cylinder body,
3... Bearing member, 4... Small hole, 5...
...PC steel material, 6,7... Fixture.
Claims (1)
部材を、両端において筒体と直角に装着した鋼製の短筒
体を縦列に複数ケ外筒体内に挿入し、前記小孔を挿通し
て、全短筒体に亘りｐｃ鋼材を配設、その両端にて緊張
し、脱着自在の定着具により定着してなることを特徴と
する２３重層ビーム。A bearing member having small holes for inserting the required number of PC steel materials is inserted into a plurality of short steel cylinders in tandem, each of which is attached at right angles to the cylinder at both ends, and the small holes are inserted into the outer cylinder. A 23-layer beam, which is inserted through the short cylinder, is made of PC steel, is tensioned at both ends, and is fixed by a removable fixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10959578U JPS6020720Y2 (en) | 1978-08-11 | 1978-08-11 | PS multilayer beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10959578U JPS6020720Y2 (en) | 1978-08-11 | 1978-08-11 | PS multilayer beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5528610U JPS5528610U (en) | 1980-02-25 |
| JPS6020720Y2 true JPS6020720Y2 (en) | 1985-06-20 |
Family
ID=29055695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10959578U Expired JPS6020720Y2 (en) | 1978-08-11 | 1978-08-11 | PS multilayer beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020720Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5850080U (en) * | 1981-09-30 | 1983-04-05 | 日立建機株式会社 | tracked vehicle |
-
1978
- 1978-08-11 JP JP10959578U patent/JPS6020720Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5528610U (en) | 1980-02-25 |
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