JP2659329B2 - Construction method of PC structure - Google Patents
Construction method of PC structureInfo
- Publication number
- JP2659329B2 JP2659329B2 JP5228966A JP22896693A JP2659329B2 JP 2659329 B2 JP2659329 B2 JP 2659329B2 JP 5228966 A JP5228966 A JP 5228966A JP 22896693 A JP22896693 A JP 22896693A JP 2659329 B2 JP2659329 B2 JP 2659329B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- section
- girder
- concrete
- tension
- 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 - Fee Related
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- Rod-Shaped Construction Members (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ＰＣ構造の建築物の
柱、梁、壁、床等の構築方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing columns, beams, walls, floors and the like of a PC structure.
【０００２】[0002]
【従来の技術】従来のＰＣ構造物はＰＣケーブルを部材
の断面内に配線し内部応力という形でプレストレスを与
えていた。その場合、部材の断面形状は矩形、Ｉ形、Ｔ
形断面等が一般的であった。また、場所打ちコンクリー
トによって接合部を一体化していた。2. Description of the Related Art In a conventional PC structure, a PC cable is laid in a cross section of a member and a prestress is applied in the form of internal stress. In that case, the sectional shape of the member is rectangular, I-shaped, T-shaped.
Shaped sections and the like were common. Also, the joints were integrated by cast-in-place concrete.
【０００３】[0003]
【発明が解決しようとする課題】ＰＣ構造物を場所打ち
コンクリートで構築する場合は、支保工、型枠、足場等
が必要であり、工程が煩雑で、工期も長かった。また従
来の密実なプレキャストコンクリート部材では部材の重
量が重く、運搬、揚重などの取扱に大きな制約があっ
た。When a PC structure is constructed of cast-in-place concrete, it requires support, formwork, scaffolding, etc., which requires a complicated process and a long construction period. Also, the conventional solid precast concrete members are heavy in weight, and there are great restrictions on handling such as transportation and lifting.
【０００４】本発明は上記問題点を解決することを目的
とするもので、ＰＣ構造物の特徴を生かしながら、部材
重量は軽くし、他の部材と容易に接合することができる
ＰＣ構造物の構築方法を開発し、これを提供するもので
ある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to reduce the weight of a member while taking advantage of the features of the PC structure, and to provide a PC structure that can be easily joined to other members. It develops a construction method and provides it.
【０００５】[0005]
【課題を解決するための手段】本発明は、上記問題点を
解決するために、次の技術手段を講じたことを特徴とす
るＰＣ構造物の構築方法である。すなわち本発明は、プ
レテンション、又はポストテンション方式でプレストレ
スが導入され上面を開口した凹形断面で長手方向中間位
置に、挿通孔を有する少なくとも一個のダイヤフラムを
設けたプレストレストコンクリート梁を製作し、取付位
置に配設した後、前記凹形断面内に、前記挿通孔を貫通
させてＰＣケーブルをアウトケーブル方式で張設配置
し、このＰＣケーブルを緊張して取付部材に接合構築す
ることを特徴とするＰＣ構造物の構築方法である。The present invention solves the above problems.
The following technical measures were taken to solve the problem.
This is a method for constructing a PC structure. That is, the present inventionStep
Prestressing by retention or post tension
Is introducedConcave section with open topIn the longitudinal middle position
At least one diaphragm with an insertion hole
Prestressed concrete beams providedProduce the mounting position
After being placed in the concave section,Penetrates the insertion hole
Let mePC cable with out cable methodStretching arrangement
Then, tension the PC cable and join it to the mounting member.
This is a method for constructing a PC structure.
【０００６】本発明は、アウトケーブルを張設するため
の、上面を開口した凹形断面を有するＰＣ部材を、１次
ケーブルによりプレテンション、又はポストテンション
方式で成形しておき、この凹形断面内に、接合用ＰＣケ
ーブルをアウトケーブル方式で２次、３次ケーブルに分
けて配線し、このＰＣケーブルを緊張して柱、梁、壁等
の直交する取付部材に接合し、ＰＣ構造物を構築する。According to the present invention, a PC member having a concave cross section with an open upper surface for stretching an out cable is molded by a pre-tension or post-tension method using a primary cable. Inside, the connecting PC cable is divided into secondary and tertiary cables by the out-cable method, and the PC cable is tensioned and connected to orthogonal mounting members such as columns, beams, walls, etc. To construct.
【０００７】[0007]
【作用】本発明では、アウトケーブルを張設する凹形断
面を有するＰＣ部材をプレテンション、又はポストテン
ション方式であらかじめ製作しておき、建築物建設現場
に運搬し架設するまでは、軽量な中間製品のＰＣ部材と
して取り扱い、運搬、揚重、架設等を容易に行えるよう
にし、凹形断面内にＰＣケーブルを配線し、アウトケー
ブル方式で柱等の直交部材に緊張接合し、その後、凹形
断面内にコンクリートを充填するようにした。従って、
最終断面の形状が大きく、重量が大きい部材でも、架設
段階までは軽量化することが可能で運搬、揚重上の制約
を小さくすることができる。According to the present invention, a PC member having a concave cross section for stretching an out cable is manufactured in advance by a pre-tension or post-tension method, and is a lightweight intermediate member until it is transported to a building construction site and erected. The product can be easily handled, transported, lifted, erected, etc. as a PC member of the product, and a PC cable is wired within the concave cross section, and the cable is tension-joined to an orthogonal member such as a pillar by an out-cable system, and then the concave shape The section was filled with concrete. Therefore,
Even a member having a large final cross section and a large weight can be reduced in weight up to the erection stage, so that restrictions on transportation and lifting can be reduced.
【０００８】ＰＣ部材の形状は、部材軸方向については
全長に亙って凹形断面を有する形状としてもよく、端部
のみを密実としたり、ＰＣケーブル挿通孔を設けた壁体
（ダイヤフラム）を部材長手方向の必要な位置に設けた
ものとしてもよい。アウトケーブルを張設する凹形断面
を有する断面形状であれば、形状の如何を問わない。本
発明では、部材の軽量化に伴い、大掛かりな支保工やブ
ラケットが不要となり、またＰＣケーブルは、凹形断面
内に配線するので、作業が容易である。その上、小梁な
どの取り付け位置や、必要な箇所に設けた壁体（ダイヤ
フラム）の底部近傍にＰＣケーブル挿通孔を設けること
により、ＰＣケーブルが曲げ下げ配線となり取り付け部
材への接合緊張力のプレストレスによる曲げ上げ力を効
果的に利用できる。The shape of the PC member may be such that it has a concave cross section over the entire length in the axial direction of the member, and only the ends are made solid, or a wall (diaphragm) provided with a PC cable insertion hole. May be provided at required positions in the longitudinal direction of the member. Any shape may be used as long as the cross section has a concave cross section where the out cable is stretched. According to the present invention, large-scale supports and brackets are not required as the members are reduced in weight, and the PC cable is wired in a concave cross section, so that the work is easy. In addition, PC cable insertion holes are provided near the bottom of a wall (diaphragm) provided at the mounting position of a small beam or the like, so that the PC cable becomes a bent-down wiring and the joining tension to the mounting member is reduced. Bending force by prestress can be used effectively.
【０００９】ＰＣ部材を取付部材に接合する場合、例え
ば梁を柱に接合する場合、直交する取付部材に個々に接
合してもよく、ＰＣ部材が連続する場合は、結合部材を
挟んで多数のＰＣ部材を連続的に接合することとしても
よい。ＰＣ部材は凹形断面内を跡埋めしないでそのまま
構造部材とすることもできるが、アウトケーブル方式に
よりＰＣ構造物を構築した後、凹形断面内にコンクリー
トを充填し、密実な合成部材とすることもできる。When the PC member is joined to the mounting member, for example, when the beam is joined to the column, it may be individually joined to the orthogonal attaching member. When the PC members are continuous, a large number of members are sandwiched between the joining members. The PC members may be continuously joined. The PC member can be used as a structural member without filling the concave section, but after constructing the PC structure by the out-cable method, concrete is filled in the concave section, and the solid composite member is used. You can also.
【００１０】本発明に係るＰＣ構造は、プレストレスを
段階的に付与することにより、構築途中で部材にオーバ
ーストレスによるダメージを与えることなく、大きなプ
レストレスを導入できるので、通常の建築物でも大きな
メリットがあるが、特に積載荷重１，０００ｋｇ／ｍ2
以上の倉庫、人工台地などの重載荷構造物には非常に有
効である。In the PC structure according to the present invention, a large pre-stress can be introduced by applying the pre-stress stepwise without damaging the members due to overstress during the construction. Although there are merits, especially the load of 1,000 kg / m 2
It is very effective for heavy-loading structures such as warehouses and artificial terraces.
【００１１】[0011]
【実施例】図１、図２は本発明の実施例の建築用のＰＣ
構造物の構築工程を示す図である。実施例の施工方法を
図面に従って説明する。 （ａ）柱１の建方を行う。 （ｂ）大梁２を架設する。大梁２は、プレキャストＰＣ
梁であって、凹形断面を有する断面形状となっているの
で軽量で、これを支持するために柱１に小さなブラケッ
トをつけておけば、容易に梁を支持することができる。
このブラケットは柱自身に設けた切り欠きであってもよ
い。1 and 2 show a construction PC according to an embodiment of the present invention.
It is a figure which shows the construction process of a structure. The construction method of the embodiment will be described with reference to the drawings. (A) The pillar 1 is constructed. (B) The girder 2 is erected. Girder 2 is precast PC
Since it is a beam and has a cross-sectional shape having a concave cross-section, it is lightweight. If a small bracket is attached to the column 1 to support the beam, the beam can be easily supported.
This bracket may be a notch provided in the pillar itself.
【００１２】大梁２又は小梁１１などのＰＣ部材の断面
形状は、例えば、図３に示すようなものでよい。図３は
断面がＵ字形をなす梁２である。このＵ字形断面の梁２
は、１次ケーブル１５を用いてプレテンション方式でプ
レキャストを成形したもので、２次ケーブル挿通孔１
６、３次ケーブル挿通孔１７を備えたダイヤフラム３を
あらかじめ形成しておくとよい。The sectional shape of the PC member such as the large beam 2 or the small beam 11 may be, for example, as shown in FIG. FIG. 3 shows a beam 2 having a U-shaped cross section. This U-shaped beam 2
Is obtained by forming a precast by a pretension method using the primary cable 15, and the secondary cable insertion hole 1
6. The diaphragm 3 having the tertiary cable insertion hole 17 may be formed in advance.
【００１３】（ｃ）柱１と、大梁２の接合部に目地モル
タルを充填し、大梁２に２次ケーブル４及びシースに収
納した３次ケーブル５を配設し、この２次ケーブル４を
緊張して柱１と大梁２を接合する。大梁２が柱１を挾ん
で連続して場合には、２次ケーブル４はこれらを貫通さ
せて、これらを同時に結合することができる。３次ケー
ブル５も同様に配設しておく。その後、小梁１１、プレ
キャストスラブ７を架設する。(C) The joint between the column 1 and the girder 2 is filled with joint mortar, and the girder 2 is provided with a secondary cable 4 and a tertiary cable 5 housed in a sheath. Then, the column 1 and the girder 2 are joined. When the girder 2 is continuous with the column 1 interposed therebetween, the secondary cable 4 can penetrate them and connect them simultaneously. The tertiary cable 5 is similarly arranged. After that, the small beam 11 and the precast slab 7 are erected.
【００１４】２次ケーブル４は、小梁１１、プレキャス
トスラブ７などの自重や作業荷重を負担するものであ
り、大梁２及び小梁１１の必要な位置に、図３に示すよ
うに、ダイヤフラム３の底部近傍に２次ケーブル挿通孔
１６を設けることにより、緊張力による曲げ上げ力を付
与することができ合理的な構造とすることが可能とな
る。３次ケーブル５は地震、積載荷重などの外部荷重に
対抗するものである。The secondary cable 4 bears its own weight and work load such as the small beam 11 and the precast slab 7, and the diaphragm 3 is provided at a required position of the large beam 2 and the small beam 11, as shown in FIG. By providing the secondary cable insertion hole 16 in the vicinity of the bottom part, a bending up force due to tension can be applied, and a rational structure can be obtained. The tertiary cable 5 resists external loads such as an earthquake and a load.
【００１５】（ｄ）２次ケーブル４が緊張され、３次ケ
ーブル５が配線されプレキャストスラブ７が架設された
状態である。大梁２が柱１を挾んで連続して接合されて
いる。 （ｅ）凹形断面内に場所打ちで大梁コンクリート６を打
設する。このとき、大梁２が自身が型枠となるので、型
枠や支保工を必要としない。(D) The secondary cable 4 is tensioned, the tertiary cable 5 is wired, and the precast slab 7 is installed. The girder 2 is continuously joined across the column 1. (E) Casting girder concrete 6 in place in the concave section. At this time, since the girder 2 itself becomes a formwork, no formwork or support is required.
【００１６】図５がここまでの工程のＰＣ構造物の平面
図であり、図６は図５のＡ−Ａ矢視図である。柱１、１
…の間に大梁２を架設し、大梁２、２のダイヤフラム３
の位置に小梁１１を架設、その後プレキャストスラブ７
を配設する。小梁１１の大梁２への接合は、図６に示す
ように大梁２の柱１の接合と同様な方法で行う。 （ｆ）３次ケーブル５を緊張し、グラウトを施す。さら
に必要なら、トップコンクリート８を打設する。FIG. 5 is a plan view of the PC structure in the steps up to here, and FIG. 6 is a view taken along the line AA of FIG. Pillar 1, 1
The girders 2 are erected between the… and the diaphragms 3 of the girders 2 and 2
A small beam 11 is erected at the position of
Is arranged. The joining of the small beam 11 to the large beam 2 is performed in the same manner as the joining of the column 1 of the large beam 2 as shown in FIG. (F) Tension the tertiary cable 5 and grout it. If necessary, top concrete 8 is cast.
【００１７】（ｇ）図２（ｇ）は、柱１に大梁２を接合
し、２次ケーブル４、３次ケーブル５を配設してプレキ
ャストスラブ７、トップコンクリート８を施工した部分
詳細図である。大梁２の自重を負担する１次ケーブル１
５、小梁、プレキャストスラブ７、トップコンクリート
８などの自重及び構築のための作業荷重、梁・柱の接合
のための緊張力を負担する２次ケーブル、完成構造形に
作用する外部荷重を負担する３次ケーブルが合理的に配
置され、強靭で軽量な構造物が構築可能となる。(G) FIG. 2 (g) is a partial detailed view in which the girder 2 is joined to the column 1 , the secondary cable 4 and the tertiary cable 5 are arranged, and the precast slab 7 and the top concrete 8 are constructed. is there. Primary cable 1 that bears the weight of girder 2
5. Work load for construction and self-weight of small beams, precast slabs 7, top concrete 8, etc., secondary cable that bears tension for joining beams and columns, and external load that acts on the completed structural form Tertiary cables are rationally arranged, and a tough and lightweight structure can be constructed.
【００１８】図４には、Ｉ形断面の複数の桁２２の組合
わせによる凹形断面ＰＣ部材を例示した。桁２２は１次
ケーブル１５でプレテンション方式でプレキャスト形成
され、複数本を並設してその桁２２の下部フランジの間
に目地コンクリート２３とダイヤフラム３を施工し、ア
ウトケーブルを配設することができるようにしたもので
ある。FIG. 4 exemplifies a PC member having a concave cross section formed by combining a plurality of beams 22 having an I- shaped cross section. The girder 22 is formed by pre-casting the primary cable 15 by a pretension method. A plurality of girder 22 are juxtaposed, and the joint concrete 23 and the diaphragm 3 are installed between the lower flanges of the girder 22 to arrange the out cable. It is made possible.
【００１９】このように、本発明が用いるＰＣ部材は、
アウトケーブルを張設するための凹形断面を有する断面
形状であれば、形状の如何を問わない。As described above, the PC member used in the present invention is:
Any shape may be used as long as it has a concave cross-section for stretching the out cable.
【００２０】[0020]
【発明の効果】本発明によれば、ＰＣ構造物が軽量とな
るので、運搬車輌能力や揚重機能力の軽減と運搬コスト
の低減に寄与する。また、型枠、支保工の省略とブラケ
ットの簡素化が可能となり、中詰めコンクリートは高強
度コンクリートを必要とせず、さらに、２次ケーブルの
張設が容易となり、曲げ上げもできるので、架設コスト
の低減、工程の短縮を図ることができる。According to the present invention, since the weight of the PC structure is reduced, it contributes to the reduction of the capacity of the transport vehicle and the lifting function and the reduction of the transport cost. In addition, the omission of the formwork and the shoring and the simplification of the bracket are possible, and the filling concrete does not require high-strength concrete. Further, the secondary cable can be easily stretched and can be bent up, so that the construction cost can be increased. And the number of steps can be reduced.
【図１】実施例のＰＣ構造物の構築方法を示す工程図で
ある。FIG. 1 is a process chart showing a method for constructing a PC structure according to an embodiment.
【図２】実施例のＰＣ構造物の構築方法を示す工程図で
ある。FIG. 2 is a process chart showing a method for constructing a PC structure according to an embodiment.
【図３】実施例の梁の断面図である。FIG. 3 is a sectional view of a beam according to the embodiment.
【図４】実施例の梁の断面図である。FIG. 4 is a sectional view of a beam according to the embodiment.
【図５】実施例の柱と梁の配列を示す平面図である。FIG. 5 is a plan view showing an arrangement of columns and beams in the embodiment.
【図６】図５のＡ−Ａ矢視図である。FIG. 6 is a view as viewed in the direction of arrows AA in FIG. 5;
１ 柱 ２ 大梁 ３ ダイヤフラム ４ ２次ケーブ
ル ５ ３次ケーブル ６ 大梁コンク
リート ７ プレキャストスラブ ８ トップコン
クリート １１ 小梁 １５ １次ケーブル １６ ２次ケーブ
ル挿通孔 １７ ３次ケーブル挿通孔 ２２ 桁 ２３ 目地コンクリートDESCRIPTION OF SYMBOLS 1 pillar 2 girder 3 diaphragm 4 secondary cable 5 tertiary cable 6 girder concrete 7 precast slab 8 top concrete 11 girder 15 primary cable 16 secondary cable insertion hole 17 tertiary cable insertion hole 22 girder 23 joint concrete
Claims (1)
方式でプレストレスが導入され、上面を開口した凹形断
面で長手方向中間位置に、挿通孔を有する少なくとも一
個のダイヤフラムを設けたプレストレストコンクリート
梁を製作し、取付位置に配設した後、前記凹形断面内
に、前記挿通孔を貫通させてＰＣケーブルをアウトケー
ブル方式で張設配置し、該ＰＣケーブルを緊張して取付
部材に接合構築することを特徴とするＰＣ構造物の構築
方法。1. Pre-tension or post-tension
Prestress is introduced by a method, at least one of which has an insertion hole at a middle position in the longitudinal direction with a concave cross section having an open upper surface.
Prestressed concrete with multiple diaphragms
After fabricating the beam and arranging it at the mounting position, the PC cable is stretched and arranged in the concave section in the out-cable manner through the insertion hole , and the PC cable is tensioned and joined to the mounting member. A method for constructing a PC structure, comprising constructing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5228966A JP2659329B2 (en) | 1993-09-14 | 1993-09-14 | Construction method of PC structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5228966A JP2659329B2 (en) | 1993-09-14 | 1993-09-14 | Construction method of PC structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0782890A JPH0782890A (en) | 1995-03-28 |
| JP2659329B2 true JP2659329B2 (en) | 1997-09-30 |
Family
ID=16884661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5228966A Expired - Fee Related JP2659329B2 (en) | 1993-09-14 | 1993-09-14 | Construction method of PC structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2659329B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6159155B2 (en) * | 2013-06-07 | 2017-07-05 | 鹿島建設株式会社 | Precast member set, precast member crimping method, structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130118A (en) * | 1974-09-06 | 1976-03-15 | Oriental Concrete Co | KONKURIITOGOSEIHARINOSEKOHO |
-
1993
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