JPH0510054A - Concrete pillar - Google Patents
Concrete pillarInfo
- Publication number
- JPH0510054A JPH0510054A JP18915491A JP18915491A JPH0510054A JP H0510054 A JPH0510054 A JP H0510054A JP 18915491 A JP18915491 A JP 18915491A JP 18915491 A JP18915491 A JP 18915491A JP H0510054 A JPH0510054 A JP H0510054A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- opening side
- injection
- end opening
- mold
- 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.)
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- Rod-Shaped Construction Members (AREA)
Abstract
(57)【要約】
【目的】 コンクリ−ト柱体の長手方向における任
意の部位に、設計上或は使用上必要なコンクリ−ト材料
を用いているコンクリ−ト柱体を提供する。
【構成】 遠心締固めにより成形されるコンクリ−
ト柱体１において、該コンクリ−ト柱体１の末口側部２
に、高引張強度のモルタル又はコンクリ−トを、該末口
側部２以外の部位３には、低スランプの高強度コンクリ
−トを、夫々使用する。
(57) [Summary] [PROBLEMS] To provide a concrete column body using a concrete material which is necessary for design or use at any portion in the longitudinal direction of the concrete column body. [Constitution] Concrete molded by centrifugal compaction
In the pillar body 1, the end opening side portion 2 of the concrete pillar body 1
A mortar or concrete having a high tensile strength is used, and a high-strength concrete having a low slump is used for the portion 3 other than the end opening side portion 2.
Description
【０００１】[0001]
【産業上の利用分野】この発明は、コンクリ−トポ−ル
など遠心締固めにより成形されるコンクリ−ト柱体にお
いて、その長手方向部位に応じて性質が異るように造型
されたコンクリ−ト柱体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete column body formed by centrifugal compaction such as a concrete pole, the concrete body of which has different properties depending on its longitudinal direction. Regarding pillars.
【０００２】[0002]
【従来の技術】コンクリ−トポ−ルなど遠心締固めによ
り成形されるコンクリ−ト柱体は、従来、末口側部から
元口側部にいたる全長部を、同一配合のコンクリ−ト材
料によって造型している。しかし、コンクリ−ト柱体の
用途や種類によっては、末口側部と元口側部の夫々に、
異なった性質が要求されることがあり、例えば、元口側
部は高圧縮強度を、末口側部では高引張強度を、必要と
するなどである。2. Description of the Related Art Conventionally, concrete columns formed by centrifugal compaction such as concrete poles are conventionally made of a concrete material having the same composition over the entire length from the end opening side to the main opening side. I'm molding. However, depending on the use and type of concrete pillar,
Different properties may be required, e.g. a high compressive strength on the base side and a high tensile strength on the end side.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来のコンク
リ−ト柱体は、末口側部と元口側部の夫々の部位によっ
て異なった性質のものを用いたものは見当らず、従っ
て、例えばコンクリ−ト柱体の全部位にわたって高圧縮
強度且つ、高引張強度の仕様に造型しているので、造型
コストは高くなり、性能上や経済上でも大きい無駄があ
る。なお、１本のコンクリ−ト柱体を、その長手方向部
位に応じて異種配合コンクリ−ト材料で造型しようとす
ると、コンクリ−トポンプやホッパ、コンクリ−ト注入
管など型枠へのコンクリ−ト注入に用いる機械器具を、
末口側部と元口側部の夫々の部位の注入工程毎に十分に
掃除して前の工程の残渣を除去せねばならないという面
倒もある。この発明は、コンクリ−ト柱体に対する上記
の要望に対処してその長手方向における任意の部位に、
設計上或は使用上必要な性能をコンクリ−ト材料を用い
てなるコンクリ−ト柱体を提供することを目的とする。However, there is no conventional concrete columnar body having different properties depending on the respective portions of the end mouth side portion and the main mouth side portion. Therefore, for example, Since all the parts of the concrete column are molded to have high compressive strength and high tensile strength, the molding cost is high, and there is a great waste in terms of performance and economy. In addition, if one concrete pillar is to be molded with a different mix concrete material according to its longitudinal direction, the concrete cylinder, concrete pump, hopper, concrete injection pipe, etc. The machinery used for injection is
There is also the trouble of having to thoroughly clean the respective parts of the end opening side part and the main opening side part for each injection step to remove the residue of the previous step. The present invention addresses the above-mentioned demand for a concrete column body, and at any portion in the longitudinal direction thereof,
It is an object of the present invention to provide a concrete column body which uses a concrete material and has performance required for design or use.
【０００４】[0004]
【課題を解決するための手段】前記課題を解決するため
この発明の構成は、遠心締固めにより成形されるコンク
リ−ト柱体１において、該コンクリ−ト柱体１の末口側
部２に、高引張強度のモルタル又はコンクリ−トを、該
末口側部２以外の元口側部３には、低スランプの高強度
コンクリ−ト等を、夫々使用していることを特徴とする
コンクリ−ト柱体である。In order to solve the above-mentioned problems, the structure of the present invention has a concrete column body 1 formed by centrifugal compaction, and the concrete column body 1 is provided on the end opening side portion 2 thereof. A mortar or concrete having a high tensile strength and a high strength concrete having a low slump are used for the main mouth side portion 3 other than the end mouth side portion 2, respectively. -It is a pillar.
【０００５】また、コンクリ−ト柱体４の末口側部５と
該末口側部５以外の元口側部６を、夫々異なる色彩のコ
ンクリ−ト材料によって造型している。Further, the end opening side portion 5 of the concrete column body 4 and the main opening side portion 6 other than the end opening side portion 5 are made of concrete materials of different colors.
【０００６】[0006]
【作用】コンクリ−ト柱体１の末口側部２に、高引張強
度のモルタル又はコンクリ−トを用い、該末口側部２以
外の部位３には、低スランプの高強度コンクリ−ト等を
用いているので、末口側部２は引張強度が大きく、プレ
ストレスコンクリ−トの場合は、高プレストレスを負担
し、かつ、スパイラル補強筋がなくとも軸筋に沿うひび
われ等を防止することができる。従って、例えば強い風
速などを受ける高い個所の強度が十分確保され、末口側
部２以外の部位３は、低スランプの高強度コンクリ−ト
により、コンクリ−ト柱体１が受ける圧縮荷重や座屈及
び曲げ荷重などを効率良く負担する。これらにより、１
本のコンクリ−ト柱体１で、末口側部２と元口側部３の
夫々の部位に、設計や仕様の要求に応じ得た異なる性質
と材力が得られ、造型コストは低減され、性能上や経済
上で有利となった。A mortar or concrete having a high tensile strength is used for the end opening side portion 2 of the concrete column body 1, and a low slump high strength concrete is used for the portion 3 other than the end opening side portion 2. Since the end opening side part 2 has a large tensile strength, in the case of prestressed concrete, it bears a high prestress and prevents cracks along the axial muscle even without the spiral reinforcement. can do. Therefore, for example, the strength of a high portion which receives a strong wind speed is sufficiently secured, and the portion 3 other than the end opening side portion 2 is subjected to the compressive load and the seat which the concrete pillar 1 receives due to the high strength concrete of the low slump. Efficiently bear bending and bending loads. With these, 1
In the concrete column body 1 of the book, different properties and material strengths obtained according to the requirements of the design and the specifications can be obtained in the respective portions of the end opening side portion 2 and the main opening side portion 3, and the molding cost can be reduced. , It became advantageous in terms of performance and economy.
【０００７】コンクリ−ト柱体４の末口側部５と該末口
側部４以外の部位６を、夫々異なる色彩のコンクリ−ト
材料によって造型しているものは、建設地域の景観を損
なわず、色彩感の豊富なコンクリ−ト柱体４となってい
る。When the end portion 5 of the concrete pillar 4 and the portion 6 other than the end portion 4 are made of concrete materials of different colors, the landscape of the construction area is impaired. Instead, the concrete pillar 4 has a rich color sense.
【０００８】[0008]
【実施例】以下、この発明の実施例を図に基づき説明す
る。図１は、この発明の第１実施例のコンクリ−ト柱体
を示す縦断正面図である。例示したコンクリ−ト柱体１
は、その末口側部２に、或る一の種類の配合による材料
(これをＡ配合コンクリ−ト材と称する)を使用し、末口
側部２以外の元口側部３は、他の種類の配合による材料
(これをＢ配合コンクリ−ト材と称する)を使用して造型
している。末口側部２のＡ配合コンクリ−ト材として
は、補強用繊維を配合した繊維補強モルタル(或は繊維
補強コンクリ−ト材)や、セメントポリマ−等を含む合
成樹脂混合モルタル(或は合成樹脂混合コンクリ−ト
材)、シリカヒュ−ム混合モルタル(或はシリカヒュ−ム
混合コンクリ−ト材)などの高引張強度モルタル(或は高
引張強度コンクリ−ト)を採用することができる。元口
側部３のＢ配合コンクリ−ト材としては、低スランプで
低分離の高強度コンクリ−ト材を採用することができ
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical sectional front view showing a concrete pillar according to a first embodiment of the present invention. Example concrete column 1
Is a material made of a certain type of compound on the end side 2 thereof.
(This is referred to as A compound concrete material), and the main mouth side part 3 other than the end mouth side part 2 is made of a material of another kind of mixture.
(This is referred to as B-blended concrete material) is used for molding. The A compound concrete material of the end portion 2 is a fiber reinforced mortar mixed with reinforcing fibers (or fiber reinforced concrete material) or a synthetic resin mixed mortar containing cement polymer or the like (or synthetic resin). High tensile strength mortar (or high tensile strength concrete) such as resin mixed concrete material) and silica fume mixed mortar (or silica fume mixed concrete material) can be adopted. A high-strength concrete material with low slump and low separation can be used as the B-blending concrete material of the main opening side portion 3.
【０００９】これらに使用する骨材の最大径Ｇmaxは、
末口側部２のＡ配合コンクリ−ト材では、Ｇmax＝約５m
m〜約１５mmで、元口側部３のＢ配合コンクリ−ト材で
は、Ｇmax＝約１０mm〜約２５mmとしている。そして図
１の実施例ではコンクリ−ト柱体１の全長Ｌに対し、末
口側部２の長さは、約0.02Ｌ〜約0.5Ｌで、元口側部３
の長さは、約0.98Ｌ〜約0.5Ｌに形成している。The maximum diameter Gmax of the aggregate used for these is
In the case of the A compound concrete material of the end opening side part 2, Gmax = about 5 m
It is m to about 15 mm, and Gmax = about 10 mm to about 25 mm in the B compound concrete material of the main mouth side part 3. In the embodiment shown in FIG. 1, the length of the end opening side portion 2 is about 0.02L to about 0.5L with respect to the total length L of the concrete column body 1, and the length of the main opening side portion 3 is 3L.
Has a length of about 0.98L to about 0.5L.
【００１０】図２に正面図で示している別な実施例のコ
ンクリ−ト柱体４は、末口側部５を造型するためのＡ配
合コンクリ−ト材と、元口側部６を造型するためのＢ配
合コンクリ−ト材を、夫々異なる色彩のものとしてい
る。A concrete pillar body 4 of another embodiment shown in a front view in FIG. 2 is formed by molding an A compound concrete material for molding the end opening side portion 5 and a main opening side portion 6. The B-blending concrete materials for doing so have different colors.
【００１１】次に上記コンクリ−ト柱体１の造型におけ
るコンクリ−ト注入方法を説明する。図３に、造型方法
の一例におけるコンクリ−ト注入初期での一部縦断正面
図、図４に、上記例におけるコンクリ−ト注入終了時の
正面図を、夫々示した。レ−ル１１上を移動できる自走
式の注入台車１２に、コンクリ−ト柱体１の造型用の型
枠１３を載置し、型枠１３の元口側１３ａの端部側方に
おけるレ−ル１１の一端側に、Ｂ配合コンクリ−ト材２
０ｂを注入するための元口側コンクリ−トポンプ１４を
定置している。型枠１３の末口側１３ｂの端部側方にお
ける注入台車１２上に、上記レ−ル１１に平行に末口側
レ−ル１５を配置し、自走式の末口側注入台車１６をこ
の末口側レ−ル１５上に乗せ、Ａ配合コンクリ−ト材２
０ａを注入するための末口側コンクリ−トポンプ１７
を、末口側注入台車１６に載置している。Next, a concrete injection method for molding the concrete pillar 1 will be described. FIG. 3 shows a partially longitudinal front view at the initial stage of concrete injection in an example of the molding method, and FIG. 4 shows a front view at the end of concrete injection in the above example. A mold 13 for molding the concrete pillar 1 is placed on a self-propelled injection trolley 12 which can move on the rail 11, and the rail on the side of the end of the former 13a of the mold 13 is placed. -B compound concrete material 2 on one end side of the reel 11
The original mouth side concrete pump 14 for injecting 0b is fixed. On the injection carriage 12 on the side of the end on the end mouth side 13b of the formwork 13, the end mouth side rail 15 is arranged in parallel with the rail 11, and the self-propelled end mouth side injection carriage 16 is installed. Place it on the end opening side rail 15 and mix with A-containing concrete material 2
0a-side concrete pump 17 for injecting 0a
Is mounted on the end-portion injection cart 16.
【００１２】元口側コンクリ−トポンプ１４の吐出口１
８に接続している元口側注入管１９は、図３のように注
入台車１２を元口側コンクリ−トポンプ１４に接近させ
たとき、その先端部１９ａが型枠１３の末口側１３ｂか
らかなり元口側１３ａに入った位置に達するよう、型枠
１３の長さよりも短い長さに、そして先端部１９ａを、
型枠１３の末口側１３ｂよりも大径である上記位置の付
近にＢ配合コンクリ−ト材２０ｂを注入可能な程度にや
や太径に、形成している。Discharge port 1 of the main port side concrete pump 14
When the injection carriage 12 is brought close to the original mouth side concrete pump 14 as shown in FIG. 3, the tip end portion 19a of the former mouth side injection pipe 19 is connected to the end mouth side 13b of the form 13 from the former side. In order to reach the position that has entered the original mouth side 13a considerably, make the length shorter than the length of the mold 13 and the tip portion 19a,
The B mixture concrete material 20b is formed to have a slightly larger diameter so that the B mixture concrete material 20b can be injected in the vicinity of the above-mentioned position having a larger diameter than the end opening side 13b of the mold 13.
【００１３】末口側コンクリ−トポンプ１７の吐出口２
１に接続している末口側注入管２２は、図３のように末
口側注入台車１６を型枠１３の末口側１３ｂに接近させ
たとき、その先端部２２ａが型枠１３の末口側１３ｂか
らかなり元口側１３ａに入った位置に達する程度に短く
形成している。Discharge port 2 of the end-side concrete pump 17
The end opening side injection pipe 22 connected to No. 1 is such that when the end opening side injection carriage 16 is brought close to the end opening side 13b of the mold 13 as shown in FIG. It is formed to be short enough to reach a position that is considerably inward from the mouth side 13b.
【００１４】元口側コンクリ−トポンプ１４のホッパ２
３には、Ｂ配合コンクリ−ト材２０ｂを、末口側コンク
リ−トポンプ１７のホッパ２４には、Ａ配合コンクリ−
ト材２０ａを、夫々所定量、投入しておく。Ｂ配合コン
クリ−ト材２０ｂ及び、Ａ配合コンクリ−ト材２０ａ
は、所定の吐出量で元口側注入管１９と末口側注入管２
２から吐出するので、型枠１３内への注入量が夫々の先
端部１９ａ、２２ａ付近の型枠１３の内断面積に比例す
ることになるよう、注入台車１２と末口側注入台車１６
の移動速度を、制御盤２５によって自動制御する構成と
している。Hopper 2 of the front side concrete pump 14
No. 3 is the B mixture concrete material 20b, and the hopper 24 of the end-port side concrete pump 17 is the A mixture concrete material.
A predetermined amount of each of the dough materials 20a is introduced. B-blended concrete material 20b and A-blended concrete material 20a
Is a main discharge side injection pipe 19 and an end mouth side injection pipe 2 with a predetermined discharge amount.
Since it is discharged from 2, the injection carriage 12 and the end mouth side injection carriage 16 are arranged so that the amount of injection into the mold 13 is proportional to the inner cross-sectional area of the mold 13 near the respective tip portions 19a and 22a.
The moving speed of is automatically controlled by the control panel 25.
【００１５】次に上記例によるコンクリ−ト材の注入工
程を説明する。注入にあたり、図３のように注入台車１
２を元口側コンクリ−トポンプ１４に接近させて型枠１
３を元口側注入管１９に一杯に挿入すると、先端部９ａ
が型枠１３の末口側１３ｂからかなり元口側３ａに入っ
た位置に達し、末口側注入台車１６を型枠１３の末口側
１３ｂに接近させて末口側注入管１２を型枠１３に一杯
に挿入すると、先端部１２ａが型枠１３の末口側１３ｂ
からかなり元口側３ａに入った位置に達して、双方の先
端部９ａ、１２ａは、互いに接近して対峙する。そこで
元口側コンクリ−トポンプ１４と末口側コンクリ−トポ
ンプ１７を作動して、各々のホッパ２３、２４内のＢ配
合コンクリ−ト材２０ｂとＡ配合コンクリ−ト材２０ａ
とを、元口側注入管１９、末口側注入管２２から吐出す
ると共に、制御盤２５によって注入台車１２と末口側注
入台車１６を矢印方向へ自動走行させる。元口側注入管
１９、末口側注入管２２の夫々の先端部１９ａ、２２ａ
付近での型枠１３の内断面積に比例することになるよ
う、注入台車１２と末口側注入台車１６の移動速度は、
制御盤２５によって自動制御されて、所定のテ−パ−形
状のコンクリ−ト柱体１の末口側部２と元口側部３の造
型に必要なＢ配合コンクリ−ト材２０ｂとＡ配合コンク
リ−ト材２０ａが、型枠１３内へ注入され、型枠１３内
で元口側１３ａと末口側１３ｂに向かって順次堆積され
る。元口側注入管１９と末口側注入管２２が夫々、型枠
１３の元口側１３ａと末口側１３ｂから外へ出た図４の
とき、コンクリ−ト注入工程は終わる。Next, the step of injecting the concrete material according to the above example will be described. When injecting, as shown in FIG.
2 to the original mouth side concrete pump 14 and form 1
3 is fully inserted into the injection pipe 19 on the front side, the tip 9a
Has reached a position far from the end opening side 13b of the mold 13 into the original opening side 3a, and the end opening side injection carriage 16 is brought close to the end opening side 13b of the form 13 to form the end opening side injection pipe 12 into the formwork. 13 is fully inserted, the tip 12a is located at the end opening side 13b of the mold 13.
When reaching the position far from the front mouth side 3a, the tip portions 9a and 12a of both sides approach each other and face each other. Therefore, the original mouth side concrete pump 14 and the last mouth side concrete pump 17 are operated, and the B mixture concrete material 20b and the A mixture concrete material 20a in the respective hoppers 23 and 24 are operated.
And are discharged from the inlet port side injection pipe 19 and the outlet port side injection pipe 22, and the control board 25 causes the injection carriage 12 and the end mouth side injection carriage 16 to automatically travel in the arrow direction. Tip portions 19a, 22a of the former mouth side injection pipe 19 and the last mouth side injection pipe 22, respectively
The moving speeds of the injection trolley 12 and the end opening side injection trolley 16 are set so as to be proportional to the inner cross-sectional area of the mold 13 in the vicinity.
It is automatically controlled by the control board 25, and the B mixture concrete material 20b and the A mixture necessary for molding the end opening side part 2 and the original opening side part 3 of the concrete taper body 1 having a predetermined taper shape. The concrete material 20a is poured into the mold 13, and is sequentially deposited in the mold 13 toward the front opening side 13a and the end opening side 13b. The concrete injection step ends when the former mouth side injection pipe 19 and the last mouth side injection pipe 22 have come out from the former mouth side 13a and the last mouth side 13b of the mold 13, respectively, as shown in FIG.
【００１６】上記例の方法によれば、型枠１３の元口側
１３ａから型枠１３内に挿入している元口側注入管１９
と、型枠１３の末口側１３ｂから型枠１３内に挿入して
いる末口側注入管２２の夫々から型枠１３内に、この異
種配合のコンクリ−ト柱体１の造型に必要なＢ配合コン
クリ−ト材２０ｂとＡ配合コンクリ−ト材２０ａを一度
に注入するので、従来の注入方法のような、コンクリ−
トポンプやホッパ、コンクリ−ト注入管など型枠へのコ
ンクリ−ト注入に用いる機械器具を、末口側部と元口側
部の夫々の部位の注入工程毎に十分に掃除して前の工程
の残渣を除去せねばならないという面倒は全く無くなっ
ている。According to the method of the above-mentioned example, the injection port 19 on the original opening side inserted from the original opening side 13a of the molding frame 13 into the molding frame 13 is used.
And, it is necessary to mold the concrete pillar body 1 of this different composition into the mold 13 from the respective end-mouth side injection pipes 22 inserted into the mold 13 from the rear end side 13b of the mold 13. Since the B-blended concrete material 20b and the A-blended concrete material 20a are injected at the same time, the concrete like the conventional injection method is used.
Machines used for concrete injection into molds such as pumps, hoppers, and concrete injection pipes should be thoroughly cleaned after each injection step at the end opening side and the source opening side. The hassle of having to remove the residue of is completely gone.
【００１７】尚、元口側注入管１９の先端部１９ａは型
枠１３の末口側１３ｂにまで届く必要はなくなり、これ
により従来の１本の注入管による注入の場合よりも元口
側注入管１９は、その先端部１９ａが太径でよく、しか
も長さは従来の注入管よりも短くでき、又、細径の末口
側注入管２２は、型枠１３の末口側１３ｂ付近への注入
を分担するので、従来の１本の注入管に比べて極めて短
くなって、これらにより、元口側注入管１９と末口側注
入管２２のコンクリ−ト詰まりは無くなり、従来よりも
かなりスランプの小さいコンクリ−トが使用可能であっ
て、コンクリ−ト詰まりの発生しやすい細径のコンクリ
−ト柱体に特に有利となっている。It should be noted that the tip end portion 19a of the base opening side injection pipe 19 does not need to reach the end opening side 13b of the mold 13, so that the front opening side injection is performed as compared with the conventional single injection pipe. The tip end 19a of the pipe 19 may have a large diameter, and the length thereof can be made shorter than that of a conventional injection pipe. Further, the small-diameter end mouth side injection pipe 22 is located near the end mouth side 13b of the mold 13. Since the injection is shared, the length is extremely shorter than that of the conventional single injection pipe, and by these, the concrete clogging of the original mouth side injection pipe 19 and the end mouth side injection pipe 22 is eliminated, which is considerably larger than the conventional one. Since a concrete with a small slump can be used, it is particularly advantageous for a concrete pillar having a small diameter in which concrete clogging is likely to occur.
【００１８】コンクリ−ト注入方法の他の例を、図５
に、コンクリ−ト注入初期での一部縦断正面図で示し
た。この例は、元口側コンクリ−トポンプ１４と元口側
注入管１９及び、末口側コンクリ−トポンプ１７と末口
側注入管２２のいずれのものも定置構造とし、型枠１３
のみを載置した注入台車１２を図５の矢印方向に自走さ
せることにより、元口側注入管１９と末口側注入管２２
が型枠１３に対し相対移動する構成であり、前記図３の
例と同一構成については、共に同一の符号を付してその
構造説明は、省略した。元口側注入管１９がコンクリ−
ト注入を行っているときは、元口側注入管１９の先端部
１９ａ付近の型枠１３の内断面積に比例した速度で、ま
た、末口側注入管２２が注入を行っているときは、末口
側注入管２２の先端部２２ａ付近の型枠１３の内断面積
に比例した速度で、注入台車１２が移動するように、制
御盤２５により注入台車１２の移動速度が自動制御され
る構成である。Another example of the concrete injection method is shown in FIG.
FIG. 2 is a front view, partly in section, at the initial stage of concrete injection. In this example, all of the main mouth side concrete pump 14 and the main mouth side injection pipe 19 and the end mouth side concrete pump 17 and the end mouth side injection pipe 22 have a stationary structure, and the form 13
Only the injection carriage 12 on which only one is placed is self-propelled in the direction of the arrow in FIG.
Is a structure that moves relative to the mold 13, and the same configurations as those in the example of FIG. 3 are denoted by the same reference numerals and the structural description thereof is omitted. The main mouth side injection pipe 19 is concrete
During injection, at a speed proportional to the inner cross-sectional area of the mold 13 near the tip portion 19a of the original mouth side injection pipe 19, and when the end mouth side injection pipe 22 performs injection. The movement speed of the injection carriage 12 is automatically controlled by the control panel 25 so that the injection carriage 12 moves at a speed proportional to the inner cross-sectional area of the mold 13 near the tip 22a of the end mouth side injection pipe 22. It is a composition.
【００１９】注入にあたり、図５のように注入台車１２
を元口側コンクリ−トポンプ１４に接近させて型枠１３
を元口側注入管１９に一杯に挿入すると、末口側注入管
２２は型枠１３の末口側１３ｂから外れていることにな
る。そこで元口側コンクリ−トポンプ１４を作動して、
ホッパ２３内のＢ配合コンクリ−ト材２０ｂを、元口側
注入管９から吐出すると共に、制御盤１５によって注入
台車２を図５の矢印方向へ自動走行させることにより所
定のテ−パ−形状のコンクリ−ト柱体１の元口側部３の
造型に必要なＢ配合コンクリ−ト材２０ｂが、型枠１３
内へ注入され、型枠１３内で元口側１３ａに向かって順
次堆積される。次に図示は省略しているが、元口側注入
管１９が型枠１３の元口側１３ａから外れ、型枠１３内
に注入され終わったＢ配合コンクリ−ト材２０ｂの堆積
条塊の末口側端部付近に、末口側注入管２２の先端部２
２ａがのぞむ位置に到達した状態となったとき、末口側
コンクリ−トポンプ１７を作動して、ホッパ２４内のＡ
配合コンクリ−ト材２０ａを、末口側注入管２２から吐
出させ、制御盤２５によって注入台車１２を図５の矢印
方向へ引き続き自動走行させる。これにより末口側注入
管２２から、所定形状のコンクリ−ト柱体１の末口側部
２の造型に必要なＡ配合コンクリ−ト材２０ａが、型枠
１３内へ注入され、型枠１３内で末口側１３ｂに向かっ
て順次堆積され、末口側注入管２２の先端部２２ａが型
枠１３の末口側１３ｂから外れたとき、コンクリ−ト注
入工程は終わる。この第２の方法によれば、図３に例示
した第１の方法にて得られる前述した特徴のほか、一台
の注入台車２で所定にコンクリ−ト注入がなされて、簡
易な移動設備で済むという利点が付加される。When injecting, as shown in FIG.
To the former side concrete pump 14 and form 13
When it is fully inserted into the front opening side injection tube 19, the end opening side injection tube 22 is removed from the end opening side 13b of the mold 13. Then, activate the front side concrete pump 14,
The B mixture concrete material 20b in the hopper 23 is discharged from the inlet pipe 9 and the control board 15 causes the injection carriage 2 to automatically run in the direction of the arrow in FIG. The B mixture concrete material 20b required for molding the original mouth side portion 3 of the concrete pillar 1 of
It is poured into the inside of the mold 13 and is sequentially deposited in the mold 13 toward the front side 13a. Next, although not shown in the drawings, the end of the accumulated injection block of the B-blended concrete material 20b which has been injected into the mold 13 by removing the injection pipe 19 from the injection port 19 from the mold opening 13a of the mold 13. Near the end on the mouth side, the tip 2
When the position 2a reaches the desired position, the end-side concrete pump 17 is actuated to move the A in the hopper 24.
The mixed concrete material 20a is discharged from the end opening side injection pipe 22, and the injection truck 12 is automatically run by the control board 25 in the arrow direction of FIG. As a result, the A-mixed concrete material 20a necessary for molding the end opening side portion 2 of the concrete column body 1 having a predetermined shape is injected from the end opening side injection pipe 22 into the mold 13 to form the mold 13 The concrete injecting step ends when the end portions 22a of the end opening side injection pipe 22 are separated from the end opening side 13b of the mold 13 by sequentially depositing toward the end opening side 13b. According to this second method, in addition to the above-mentioned characteristics obtained by the first method illustrated in FIG. 3, concrete injection is performed in a predetermined manner by one injection carriage 2, and a simple moving facility is provided. The advantage of being completed is added.
【００２０】次に前記図１の実施例のコンクリ−ト柱体
１の造型実験結果を説明する。全長Ｌは１７ｍ、設計荷
重Ｐ＝１５００ｋｇのコンクリ−ト柱体１を、その末口
側部２の長さは約５ｍとし、Ａ配合コンクリ−ト材２０
ａとしてＧmax＝約１０mmの骨材を配合し、スランプ約
８ｃｍに混練し、特に末口側端部から約0.5ｍ〜約１ｍ
の範囲は、シリカヒュ−ムを用いた高強度コンクリ−ト
としている。そして、末口側部２以外の元口側部３は、
従来の通常のコンクリ−トにおける単位水量を減らして
スランプが約１０ｃｍのＢ配合コンクリ−ト材２０ｂを
使用している。Next, the results of a molding experiment of the concrete column 1 of the embodiment shown in FIG. 1 will be described. The concrete column 1 having a total length L of 17 m and a design load P = 1500 kg, and the end portion 2 of the concrete column 1 having a length of about 5 m is used as the A compound concrete material 20.
As a, an aggregate of Gmax = about 10 mm is blended and kneaded to a slump of about 8 cm, especially about 0.5 m to about 1 m from the end on the end side.
The range of is a high strength concrete using silica fume. And the main mouth side part 3 other than the end mouth side part 2 is
The unit water amount in the conventional ordinary concrete is reduced and the slump uses the B mixture concrete material 20b of about 10 cm.
【００２１】コンクリ−ト材の注入工程では、型枠１３
の末口側１３ｂに口径５０mmの末口側注入管２２を、元
口側１３ａには口径１５０mmの元口側注入管１９を使用
したため、上記のような低スランプにも拘らず、コンク
リ−ト詰まりは末口側注入管２２にも発生していない。
そして、コンクリ−ト柱体１の末口側部２においてＰＣ
鋼材はコンクリ−ト材に十分付着しており、また、末口
側部２の縦ひび割れも発生していない。このコンクリ−
ト柱体１の曲げ強度は、従来の通常のコンクリ−ト柱体
と同一であった。In the step of injecting the concrete material, the mold 13
Since the end mouth side injection pipe 22 having a diameter of 50 mm is used for the end mouth side 13b and the former mouth side injection pipe 19 having a diameter of 150 mm is used for the source mouth side 13a, the concrete pipe is used in spite of the above low slump. No clogging has occurred in the end opening side injection pipe 22.
Then, at the end opening side portion 2 of the concrete pillar 1, the PC
The steel material is sufficiently adhered to the concrete material, and vertical cracks on the end opening side portion 2 are not generated. This concrete
The bending strength of the columnar body 1 was the same as that of a conventional ordinary concrete columnar body.
【００２２】そして、コンクリ−ト柱体１を断面でカッ
トしてコンクリ−ト材の分離状態を観察した結果、従来
の通常のコンクリ−ト柱体では鉄筋部の周囲に若干の空
隙部が見られたが、上記実施例のコンクリ−ト柱体１で
は、かかる空隙部は見当らず、耐久性の良いコンクリ−
ト柱体１に造型されていることが判明した。なお、以上
はテ−パ−形状のコンクリ−ト柱体について説明したも
のであるが、ノ−テ−パ−形状のコンクリ−ト柱体に対
しても、この発明は全く支障無く適用できるものであ
る。As a result of observing the separated state of the concrete material by cutting the concrete column body 1 in a cross section, a slight void is found around the reinforcing bar portion in the conventional ordinary concrete column body. However, in the concrete columnar body 1 of the above-mentioned embodiment, such a void portion is not found, and the concrete column body having good durability is obtained.
It was found that it was molded on the pillar 1. Although the taper-shaped concrete pillars have been described above, the present invention can be applied to a nother-shaped concrete pillar without any trouble. Is.
【００２３】[0023]
【発明の効果】以上の通りこの発明によれば、１本のコ
ンクリ−ト柱体１で、末口側部２と該末口側部２以外の
元口側部３の夫々の部位に、設計や仕様の要求に応じ得
た異なる性質と材力が得られ、造型コストは低減され、
性能上や経済上で有利となった。As described above, according to the present invention, one concrete pillar 1 is provided in each of the end opening side portion 2 and the main opening side portion 3 other than the end opening side portion 2. Different properties and material strengths that meet the requirements of design and specifications are obtained, molding cost is reduced,
It became advantageous in terms of performance and economy.
【００２４】コンクリ−ト柱体４の末口側部５と該末口
側部５以外の元口側部６を、夫々異なる色彩のコンクリ
−ト材料によって造型しているものは、コンクリ−ト柱
体４が使用されている環境地域の景観を損なわず、色彩
感の豊富なコンクリ−ト柱体４とすることができた。The concrete column body 4 is manufactured by molding the end opening side portion 5 and the main opening side portion 6 other than the end opening side portion 5 with concrete materials of different colors. It was possible to make the concrete pillar 4 with a rich color sense without impairing the landscape of the environmental area where the pillar 4 is used.
【００２５】なお、上記コンクリ−ト柱体１または４の
末口側部２または５と該末口側部２または５以外の元口
側部３または６とから、夫々コンクリ−トを注入する方
法をとれば、従来のような、コンクリ−トポンプやホッ
パ、コンクリ−ト注入管など型枠へのコンクリ−ト注入
に用いる機械器具を、末口側部と元口側部の夫々の部位
の注入工程毎に十分に掃除して前の工程の残渣を除去せ
ねばならないという面倒を、なくすことができる。The concrete is injected from the end opening side portion 2 or 5 of the concrete pillar 1 or 4 and the main opening side portion 3 or 6 other than the end opening side portion 2 or 5, respectively. According to the method, the conventional mechanical equipment such as a concrete pump, a hopper, and a concrete injection pipe used for concrete injection into the mold are provided at the end mouth side portion and the main mouth side portion, respectively. The inconvenience of having to thoroughly clean the residue in the previous step after each injection step can be eliminated.
【図１】この発明の第１実施例におけるコンクリ−ト柱
体の縦断正面図である。FIG. 1 is a vertical sectional front view of a concrete pillar according to a first embodiment of the present invention.
【図２】この発明の第２実施例におけるコンクリ−ト柱
体の正面図である。FIG. 2 is a front view of a concrete column body according to a second embodiment of the present invention.
【図３】この発明に使用するコンクリ−ト材注入方法の
第１例における注入初期での一部縦断正面図である。FIG. 3 is a partial vertical sectional front view at the initial stage of injection in the first example of the concrete material injection method used in the present invention.
【図４】図３の例におけるコンクリ−ト注入終了時の正
面図である。FIG. 4 is a front view of the example of FIG. 3 at the end of concrete injection.
【図５】この発明に使用するコンクリ−ト材注入方法の
第２例における注入初期での一部縦断正面図である。FIG. 5 is a partial vertical sectional front view in the initial stage of injection in the second example of the concrete material injection method used in the present invention.
１、４ コンクリ−ト柱体 ２、５ 末口側部 ３、６ 元口側部 1,4 concrete columns 2, 5 end side 3, 6 Main mouth side
フロントページの続き (72)発明者 本間 雅人 茨城県下館市伊佐山字北宿218番地の３ 日本コンクリ−ト工業株式会社研究所内 (72)発明者 谷 隆元 三重県鈴鹿市庄野町1900番地 日本コンク リ−ト工業株式会社鈴鹿工場内 (72)発明者 富山 勝三 三重県鈴鹿市庄野町1900番地 日本コンク リ−ト工業株式会社鈴鹿工場内Continued front page (72) Inventor Masato Honma 3 218 Kitajuku, Isayama, Shimodate, Ibaraki Inside the laboratory of Nippon Concrete Industry Co., Ltd. (72) Inventor Takamoto Tani Mie Prefecture Suzuka City Shonomachi 1900 No. Japan Conc Reit Industry Co., Ltd. Suzuka Factory (72) Inventor Katsuzo Toyama Mie Prefecture Suzuka City Shonomachi 1900 No. Japan Conc Reit Industry Co., Ltd. Suzuka Factory
Claims (2)
ト柱体において、 該コンクリ−ト柱体の末口側部に、高引張強度のモルタ
ル又はコンクリ−トを、該末口側部以外の元口側部に
は、低スランプの高強度コンクリ−トを、夫々使用して
いることを特徴とするコンクリ−ト柱体。1. A concrete molded by centrifugal compaction.
In the concrete column, a mortar or concrete having high tensile strength is provided on the end side of the concrete column, and a high-strength concrete with a low slump is provided on the main side other than the end side. Concrete pillars, which are characterized by using each of them.
ト柱体において、 該コンクリ−ト柱体の末口側部と該末口側部以外の元口
側部を、夫々異なる色彩のコンクリ−ト材料によって造
型していることを特徴とするコンクリ−ト柱体。2. A concrete molded by centrifugal compaction.
In the concrete column, a concrete column is characterized in that the end opening side portion and the main opening side portion other than the end opening side portion are molded with concrete materials of different colors. To pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18915491A JPH0510054A (en) | 1991-07-03 | 1991-07-03 | Concrete pillar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18915491A JPH0510054A (en) | 1991-07-03 | 1991-07-03 | Concrete pillar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0510054A true JPH0510054A (en) | 1993-01-19 |
Family
ID=16236346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18915491A Pending JPH0510054A (en) | 1991-07-03 | 1991-07-03 | Concrete pillar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0510054A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02700A (en) * | 1987-05-30 | 1990-01-05 | Fuji Oil Co Ltd | Fatty oil, and fatty oil-containing food prepared by using same |
| JP2008248476A (en) * | 2007-03-29 | 2008-10-16 | Ps Mitsubishi Construction Co Ltd | Concrete tower-like structure and its construction method |
| JP2011122425A (en) * | 2009-12-01 | 2011-06-23 | Siemens Ag | Concrete tower |
| CN103774905A (en) * | 2014-02-21 | 2014-05-07 | 董旭恒 | Novel pole producing technology |
-
1991
- 1991-07-03 JP JP18915491A patent/JPH0510054A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02700A (en) * | 1987-05-30 | 1990-01-05 | Fuji Oil Co Ltd | Fatty oil, and fatty oil-containing food prepared by using same |
| JP2008248476A (en) * | 2007-03-29 | 2008-10-16 | Ps Mitsubishi Construction Co Ltd | Concrete tower-like structure and its construction method |
| JP2011122425A (en) * | 2009-12-01 | 2011-06-23 | Siemens Ag | Concrete tower |
| EP2330263B1 (en) | 2009-12-01 | 2016-03-16 | Siemens Aktiengesellschaft | Concrete tower |
| CN103774905A (en) * | 2014-02-21 | 2014-05-07 | 董旭恒 | Novel pole producing technology |
| CN103774905B (en) * | 2014-02-21 | 2016-06-01 | 董旭恒 | The production technique of a kind of electric pole |
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