JPH03197708A - Manufacture of trough for channel - Google Patents
Manufacture of trough for channelInfo
- Publication number
- JPH03197708A JPH03197708A JP33592889A JP33592889A JPH03197708A JP H03197708 A JPH03197708 A JP H03197708A JP 33592889 A JP33592889 A JP 33592889A JP 33592889 A JP33592889 A JP 33592889A JP H03197708 A JPH03197708 A JP H03197708A
- Authority
- JP
- Japan
- Prior art keywords
- trough
- bottom frame
- frame
- gfrp
- side frames
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000000463 material Substances 0.000 claims abstract description 16
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 claims abstract description 14
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 claims abstract description 14
- 238000010030 laminating Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 5
- 239000011162 core material Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Sewage (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、軟弱地盤に構築する水路用トラフの改良に関
する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improvements in waterway troughs constructed on soft ground.
従来技術と問題点
コンクリート製トラフ、鉄板製トラフをスパンの短かい
多数の支持杭で軟弱地盤に支持せしめて水路を構築して
いる。Conventional technology and problems Water channels are constructed by supporting concrete troughs and iron plate troughs on soft ground with a large number of short-span support piles.
かかる水路は、上記多数の支持杭で重量のあるトラフを
支持していること、トラフに耐候性、耐蝕性を付与せし
めなければならないことなどにより、工期が長くなり、
施工効率に劣っていた。Such waterways require a long construction period due to the heavy troughs being supported by the large number of support piles mentioned above, and the troughs having to be weather and corrosion resistant.
Construction efficiency was poor.
本発明は、かかる問題点に着目してなしたもので、支持
杭のスパンを拡げることができる水路施工効率のたがい
トラフ及び耐候性、耐蝕性に富むトラフの提供を目的と
する。The present invention was made in view of this problem, and aims to provide a trough with improved waterway construction efficiency that can extend the span of support piles, and a trough that is highly weather resistant and corrosion resistant.
目的達成のための手段
叙上の目的を達成するために本発明がなした手段は、ト
ラフ本体をＧＦＲＰで成形し、それに側枠を接合し、か
つ底枠をノ＼イブリ・ソド材で接合し、それら側枠及び
底枠にＦＲＰ層を形成して体化せしめるということであ
る。Means for Achieving the Object The means achieved by the present invention to achieve the above object is to mold the trough body with GFRP, join the side frame to it, and join the bottom frame with Iburi Sodo material. Then, an FRP layer will be formed on the side frames and the bottom frame to form the structure.
作用
トラフ本体は、ＧＦＲＰによって強度が与えられ、その
トラフ本体底部の底枠及びノ１イブリ・ソド材によって
トラフ本体がハイブリッド化され、トラフ本体の水路面
のたわみが最小限に抑えられ、同時に側枠が接合された
トラフ本体側壁によってトラフ本体と水との重量が分担
され、支持杭のスパン間のたわみが上記両側壁によって
保持される。The working trough body is given strength by GFRP, and the trough body is hybridized by the bottom frame at the bottom of the trough body and No1 Iburi Sodo material, minimizing deflection of the waterway surface of the trough body, and at the same time The weight of the trough body and the water is shared by the side walls of the trough body to which the frame is joined, and the deflection between the spans of the support pile is held by the side walls.
実施例 図面を参照しながら説明する。Example This will be explained with reference to the drawings.
トラフ成形型１は、外形がＵ字形、７字形などに成形さ
れた構成で、木型をトラフ本体２の成形には上下逆向に
配置して使用する（第１図及び第６図参照）。上下逆向
に配置したトラフ成形型１の表面にＧＦＲＰを適当な厚
さ（たとえば１０■位の厚さ）に積層し、硬化せしめて
断面Ｕ字形、断面Ｖ字形等のトラフ本体２を成形するよ
うにするが、積層ＧＦＲＰが未硬化のうちに両側外面に
予め組立てである側枠３を接合せしめる（第２図。The trough mold 1 has a U-shaped or 7-shaped outer shape, and the wooden mold is used by arranging it upside down for molding the trough body 2 (see FIGS. 1 and 6). GFRP is laminated to an appropriate thickness (for example, about 10 cm thick) on the surface of a trough mold 1 placed upside down and cured to form a trough body 2 having a U-shaped cross section, a V-shaped cross section, etc. However, while the laminated GFRP is still uncured, pre-assembled side frames 3 are bonded to the outer surfaces of both sides (Fig. 2).
第３図及び第７図、第８図参照）。その側枠３は、断面
Ｕ字形のトラフ本体２で水路を構築する場合、断面り字
形の金属アングル及び断面角形の金属パイプで構成した
トラスを使用し、トラフ本体２に高構造強度、高剛性を
与えトラフを支持する支持杭（不図示）のスパンを長く
（たとえば１２ｍ位）なし得るようになし、その支持杭
のスパン間のたわみがトラフ本体２の両側壁によって保
持されるように構成する（第３図及び第４図参照）。側
枠３は、断面Ｖ字形のトラフ本体２で水路を構築する場
合、断面角形のプラスチックパイプの一端部を薄肉で長
いプラスチック板の片面に接合し、該パイプをプラスチ
ック板に平行立設して構成した枠体（第８図及び第９図
参照）。或いは該枠体のプラスチックパイプの他端部（
同図で上端部）に、該枠体のプラスチック板と同形状、
同寸法の別のプラスチック板を平行かつ同じ方向に突出
接合せしめて側面梯子状に構成した枠体（不図示）を使
用し、補強するようにする。上記した断面角形プラスチ
ックパイプはＦＲＰ又はＧＦＲＰで引抜き成形したパイ
プを使用して側部を補強する。また、上記枠体のプラス
チックパイプの一端部に設けたプラスチック板を断面Ｖ
字形トラフ本体２のフランジ裏面に接合せしめる際は、
後述のＣＦＲＰで構成したハイブリッド材５を介して接
合し、断面Ｖ字形トラフ本体２に梁剛性を与えるように
する。(See Figures 3, 7, and 8). When constructing a waterway using a trough body 2 with a U-shaped cross section, the side frame 3 is constructed using a truss made of metal angles with a cross-section of a U-shape and metal pipes with a square cross-section. The span of the support piles (not shown) that support the trough can be made long (for example, about 12 m), and the deflection between the spans of the support piles is maintained by both side walls of the trough body 2. (See Figures 3 and 4). When constructing a waterway using the trough body 2 with a V-shaped cross section, the side frame 3 is constructed by joining one end of a plastic pipe with a rectangular cross section to one side of a thin, long plastic plate, and standing the pipe parallel to the plastic plate. The constructed frame (see Figures 8 and 9). Or the other end of the plastic pipe of the frame (
The same shape as the plastic plate of the frame,
A frame body (not shown) having a side ladder shape formed by joining different plastic plates of the same size in parallel and in the same direction to provide reinforcement is used. The sides of the above-mentioned plastic pipe with a square cross section are reinforced using a pipe pultruded from FRP or GFRP. In addition, the plastic plate provided at one end of the plastic pipe of the frame body has a cross section V
When joining to the back side of the flange of the trough body 2,
They are joined via a hybrid material 5 made of CFRP, which will be described later, to provide beam rigidity to the trough body 2 having a V-shaped cross section.
底枠４は、断面Ｕ字形トラフ本体２を成形する積層ＧＦ
ＲＰが未硬化のうちに底部外面に、予め組んだ枠底構成
部材を接合せしめる場合（第４図参照）と、バラバラの
底枠構成部材を接合せしめると同時に底枠自体を構成す
る場合（不図示）とある。前者は、第４図示の如＜ＧＦ
ＲＰで引抜き成形した角パイプを格子状に組み、格子目
に木質芯材７を嵌め込んだ底枠構成部材を上記角パイプ
のみハイブリッド材５を介して未硬化のトラフ本体２の
底部外面に接合し、同時に木質芯材７を未硬化のトラフ
本体２の底面に直接４合せしめて底枠４を格子状に構成
すると同時にその底枠を未硬化の断面Ｕ字形トラフ本体
２に接合せしめる。不図示の後者は、上記木質芯材７を
上記トラフ本体２の底部外面の所定部位に接合し、この
接合した木質芯材７の表面にＧＦＲＰ層８を形成せしめ
、前記ＧＦＲＰ角パイプをハイブリッド材５を介して前
記トラフ本体２の底部外面所定部位に接合し、底枠４を
格子状に構成すると同時に前記トラフ本体２に接合せし
める。底枠４のＧＦＲＰ角パイプは断面Ｕ字形トラフ本
体２の底部外面長手両側部位には、相互に当接せる複数
本（図示例は長手両側部位に各２本づつ）を平行に並設
せしめ、該トラフ本体の底部外面幅側中央部位には１本
だけ平行に配設せしめる。そして、断面Ｕ字形トラフ本
体２の底部外面に接合した格子状の底枠４のすべてのＧ
ＦＲＰ角パイプの表面に前記ハイブリッド材５を介して
ＦＲＰをオーバーレイし、ＦＲＰ層６を形成すると共に
、側枠３にもＦＲＰをオーバーレイしてＦＲＰ層６を形
成し、該側枠と底枠４とを一体化せしめる（第５図、第
１１図、第１２図参照）。ハイブリッド材５はＣＦＲＰ
で１〜２閤位の肉厚に成形されたテープ体で、剛性及び
強度の付与と製品の軽量化とを企図して用いるものであ
る。このＣＦＲＰハイブリッド材５は、カーボン繊維及
びガラス繊維が一方向に揃えられ、組合わされて強化さ
れた剛性材であって、ＧＦＲＰや側枠３及び／或いは底
枠４と併用することによって、トラフ本体２の断面形状
がＵ字形又はＶ字形のいずれであれ、そのトラフ本体を
ハイブリッド化し、すぐれた剛性及びすぐれた強度を付
与し、水路を構築した場合に支持杭のスパンが長（なっ
ても、水路面のたわみを最小限に抑え、かつトラフ本体
と水との重量をトラフ側壁に分担せしめ、支持杭のスパ
ン間のたわみをトラフ側壁に保持せしめ、軽量でありな
がら高剛性、高強度のトラフを構築せしめる。断面Ｖ字
形トラフ本体２で水路を構築する場合の底枠４は、２つ
の例があり一つは側枠３が第８図示、第９図示の構造の
場合、平面梯子状に構成した枠体を使用する例（第９図
参照）と、側枠３が不図示の梯子状に構成されている場
合、両側の側枠３間にわたって架渡し固定する補強杆（
恰かも梯子の足掛桟のように架渡し固定する補強杆）だ
けを使用する例とある。これら２つの例の底枠４は、第
９図示例の場合には、梯子状に構成するに際し、両側長
杆に多数の上記補強杆をハイブリッド材５を介して平行
に接合配設し、不図示の補強杆の場合には、梯子状側枠
の両側長杆にハイブリッド材５を介して多数の補強杆を
平行に接合固定せしめる。この断面Ｖ字形トラフ本体２
に使用する底枠４は、すべての杆部材としてＦＲＰ又は
ＧＦＲＰで引抜き成形した角パイプを使用して底部を補
強せしめる。そして、底枠４自体の構成或いは側枠３と
底枠４との接合にハイブリッド材５を使用して上記トラ
フ本体２に梁剛性を付与せしめるようにする。断面Ｕ字
形トラフ本体２の底枠７の構成に使用する木質芯材７は
、軽量なパル材を芯材として使用する。The bottom frame 4 is a laminated GF that forms the trough body 2 with a U-shaped cross section.
There are cases in which pre-assembled frame bottom constituent members are joined to the outer surface of the bottom while the RP is uncured (see Figure 4), and cases in which separate bottom frame constituent members are joined and the bottom frame itself is constructed at the same time (see Figure 4). (Illustrated) The former is as shown in Figure 4 <GF
Square pipes pultruded with RP are assembled in a grid pattern, and a bottom frame component with a wooden core material 7 fitted in the grid is joined to the bottom outer surface of the uncured trough body 2 via the hybrid material 5 only for the square pipes. At the same time, the wooden core material 7 is directly fitted to the bottom surface of the uncured trough body 2 to construct the bottom frame 4 in a lattice shape, and at the same time, the bottom frame is joined to the uncured trough body 2 having a U-shaped cross section. In the latter case (not shown), the wooden core material 7 is joined to a predetermined portion of the bottom outer surface of the trough body 2, a GFRP layer 8 is formed on the surface of the joined wooden core material 7, and the GFRP square pipe is made of a hybrid material. 5 to a predetermined portion of the bottom outer surface of the trough main body 2, thereby structuring the bottom frame 4 in a lattice shape and simultaneously joining the trough main body 2. The GFRP square pipe of the bottom frame 4 has a U-shaped cross section and a plurality of pipes are arranged in parallel on both longitudinal sides of the bottom outer surface of the trough main body 2 (in the illustrated example, two pipes are arranged on each longitudinal side) so that they can abut each other, Only one trough is disposed in parallel at the center portion of the bottom outer surface width side of the trough body. Then, all G of the lattice-shaped bottom frame 4 joined to the bottom outer surface of the U-shaped trough body 2
FRP is overlaid on the surface of the FRP square pipe via the hybrid material 5 to form an FRP layer 6, and FRP is also overlaid on the side frame 3 to form an FRP layer 6. (See Figures 5, 11, and 12). Hybrid material 5 is CFRP
It is a tape body molded to a thickness of about 1 to 2 mm thick, and is used with the intention of imparting rigidity and strength and reducing the weight of the product. This CFRP hybrid material 5 is a rigid material reinforced by aligning carbon fibers and glass fibers in one direction and combining them. Regardless of whether the cross-sectional shape of the trough is U-shaped or V-shaped, the trough body is hybridized to provide excellent rigidity and strength, so that when constructing a waterway, the support pile span is long (even if By minimizing the deflection of the waterway surface, and by distributing the weight of the trough body and water to the trough side walls, the deflection between the spans of the support piles is held by the trough side walls, creating a lightweight yet highly rigid and strong trough. There are two examples of the bottom frame 4 when constructing a waterway with the trough body 2 having a V-shaped cross section.One is when the side frame 3 has the structure shown in Figures 8 and 9, in the form of a planar ladder. In the case where the constructed frame body is used (see Fig. 9) and the side frame 3 is constructed in a ladder shape (not shown), reinforcing rods (
There is an example of using only a reinforcing rod (which is used to secure the structure across the bridge, similar to the footrest of a ladder). In the case of the ninth illustrated example, when the bottom frame 4 of these two examples is constructed in a ladder shape, a large number of the above-mentioned reinforcing rods are connected and arranged in parallel to the long rods on both sides via the hybrid material 5, so that no In the case of the illustrated reinforcing rods, a large number of reinforcing rods are bonded and fixed in parallel to the long rods on both sides of the ladder-like side frame via hybrid materials 5. This V-shaped trough body 2
The bottom frame 4 used for this purpose uses square pipes pultruded from FRP or GFRP as all rod members to reinforce the bottom part. The hybrid material 5 is used to construct the bottom frame 4 itself or to join the side frames 3 and the bottom frame 4 to impart beam rigidity to the trough body 2. The wooden core material 7 used to construct the bottom frame 7 of the trough body 2 having a U-shaped cross section is made of lightweight pal wood.
第１２図に断面Ｕ字形トラフ本体２の外面に、断面Ｖ字
形トラフ本体２で使用した側枠３及び底枠４を接合した
他例を示しであるが、断面Ｕ字形トラフ本体２の成形手
段は、前述した断面Ｕ字形トラフ本体２の場合とほぼ同
様であり、側枠３及び底枠４は、前記断面■字形トラフ
本体２の場合のそれらとほぼ同じである。FIG. 12 shows another example in which the side frames 3 and bottom frame 4 used in the V-shaped trough body 2 are joined to the outer surface of the trough body 2 having a U-shaped cross-section. is substantially the same as in the case of the trough body 2 having a U-shaped cross section described above, and the side frames 3 and the bottom frame 4 are substantially the same as those in the case of the trough body 2 having a square cross-section.
発明の効果
本発明は叙上の如く構成したから、強度、剛性、耐候性
、耐蝕性に富む堅牢で軽量なトラフが得られる。Effects of the Invention Since the present invention is constructed as described above, it is possible to obtain a robust and lightweight trough that is rich in strength, rigidity, weather resistance, and corrosion resistance.
従って、支持杭のスパンを拡げて軟弱地盤に構築するに
適したトラフを提供できると共に、支持杭の本数を減じ
ることによる施工効率のたがいトラフを提供し得る。Therefore, it is possible to provide a trough suitable for construction on soft ground by widening the span of the support piles, and to provide a trough with improved construction efficiency by reducing the number of support piles.
図面は本発明製造方法の実施例を工程順に概略表わした
もので第１図は断面Ｕ字形トラフ本体の成形に使用する
成形型の一部斜視図、第２図は上記トラフ本体の成形工
程を示す一部斜視図、第３図は側枠接合工程を示す一部
斜視図、第４図は底枠接合工程を示す一部斜視図、第５
図は脱型前の前記トラフ本体を示す一部斜視図、第６図
は断面■字形トラフ本体の成形に使用する成形型の一部
斜視図、第７図は上記Ｉ・ラフ本体の成形工程を示す一
部斜視図、第８図は側枠接合工程を示す一部斜視図、第
９図は底枠接合工程を示す一部斜視図、第１０図は脱型
前のトラフ本体を示す一部斜視図、第１１図は断面Ｕ字
形トラフ完成品の一部斜視図、第１２図は一部拡大縦断
面図、第１３図は断面Ｖ字形トラフ完成品の一部斜視図
、第１４図は断面Ｕ字形トラフの他例を表わす一部斜視
図である。
図中、
１・・・トラフ成形型
２・・・トラフ本体
３・・・側 枠
４・・・底 枠
５・・・ハイブリッ
６・・・ＦＲＰ層
ド材
システム研究所The drawings schematically represent an embodiment of the manufacturing method of the present invention in the order of steps, and FIG. 1 is a partial perspective view of a mold used for molding a trough body with a U-shaped cross section, and FIG. 2 shows the process of molding the trough body. Figure 3 is a partial perspective view showing the side frame joining process, Figure 4 is a partial perspective view showing the bottom frame joining process, and Figure 5 is a partial perspective view showing the bottom frame joining process.
The figure is a partial perspective view showing the trough body before demolding, Figure 6 is a partial perspective view of the mold used for molding the trough body with a square cross section, and Figure 7 is the process of molding the I-rough body. FIG. 8 is a partial perspective view showing the side frame joining process, FIG. 9 is a partial perspective view showing the bottom frame joining process, and FIG. 10 is a partial perspective view showing the trough body before demolding. 11 is a partial perspective view of a completed trough with a U-shaped cross section, FIG. 12 is a partially enlarged longitudinal sectional view, FIG. 13 is a partial perspective view of a completed trough with a V-shaped cross section, and FIG. 14 FIG. 2 is a partial perspective view showing another example of a trough having a U-shaped cross section. In the figure, 1...Trough mold 2...Trough body 3...Side Frame 4...Bottom Frame 5...Hybrid 6...FRP Layered Material System Research Institute
Claims (1)
層せしめてトラフ本体を成形し、該トラフ本体の両側外
面に側枠を接合すると共に、底部外面に底枠をハイブリ
ッド材で接合せしめ、側枠及び底枠にＦＲＰ層を形成し
て一体化せしめることを特徴とする水路用トラフの製造
方法。A trough body is formed by laminating GFRP on the surface of a trough mold placed upside down, side frames are bonded to both outer surfaces of the trough body, and a bottom frame is bonded to the bottom outer surface using a hybrid material. and a method for manufacturing a waterway trough, which comprises forming and integrating an FRP layer on the bottom frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33592889A JPH03197708A (en) | 1989-12-25 | 1989-12-25 | Manufacture of trough for channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33592889A JPH03197708A (en) | 1989-12-25 | 1989-12-25 | Manufacture of trough for channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03197708A true JPH03197708A (en) | 1991-08-29 |
| JPH042125B2 JPH042125B2 (en) | 1992-01-16 |
Family
ID=18293918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33592889A Granted JPH03197708A (en) | 1989-12-25 | 1989-12-25 | Manufacture of trough for channel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03197708A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179239A (en) * | 2014-08-26 | 2014-12-03 | 德阳荣丰玻璃钢科技开发有限公司 | Integral glass fiber reinforced plastic inspection well |
-
1989
- 1989-12-25 JP JP33592889A patent/JPH03197708A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179239A (en) * | 2014-08-26 | 2014-12-03 | 德阳荣丰玻璃钢科技开发有限公司 | Integral glass fiber reinforced plastic inspection well |
| CN104179239B (en) * | 2014-08-26 | 2016-06-08 | 德阳荣丰玻璃钢科技开发有限公司 | A kind of Integral glass fibre reinforced plastic inspection pit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH042125B2 (en) | 1992-01-16 |
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| R250 | Receipt of annual fees |
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| LAPS | Cancellation because of no payment of annual fees |