JPH05272197A - Prestressed concrete member - Google Patents
Prestressed concrete memberInfo
- Publication number
- JPH05272197A JPH05272197A JP9603092A JP9603092A JPH05272197A JP H05272197 A JPH05272197 A JP H05272197A JP 9603092 A JP9603092 A JP 9603092A JP 9603092 A JP9603092 A JP 9603092A JP H05272197 A JPH05272197 A JP H05272197A
- Authority
- JP
- Japan
- Prior art keywords
- prestressed concrete
- reinforcing
- imbedded
- precast
- cylinder
- 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
Landscapes
- Rod-Shaped Construction Members (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はプレストレストコンクリ
ート柱やプレストレストコンクリート梁等のプレストレ
ストコンクリート部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 prestressed concrete member such as a prestressed concrete column or a prestressed concrete beam.
【０００２】[0002]
【従来の技術】近年は、柱や梁等の建築材をプレキャス
ト化し、それを現場において組み立てることによりコン
クリート構造物の施工性の向上及び労働力不足を補って
いる。さらにこのプレキャスト柱やプレキャスト梁にプ
レストレスを与えて強度を大きくしたプレストレストコ
ンクリート部材を用いてプレストレストコンクリート構
造物が構築されている。2. Description of the Related Art In recent years, construction materials such as columns and beams are precast and assembled on site to improve the workability of concrete structures and compensate for labor shortage. Furthermore, a prestressed concrete structure is constructed by using a prestressed concrete member in which strength is increased by prestressing the precast column or the precast beam.
【０００３】[0003]
【発明が解決しようとする課題】しかし、このようなプ
レストレストコンクリート構造物は、コンクリートに圧
縮応力を与える構造であるため、強度は大きいが靱性は
少ない。これは、ＰＣ鋼材の強度が大きいことと、圧縮
軸力が作用するために前記ＰＣ鋼材が降伏する以前に圧
縮側のコンクリートが圧壊するためであり、この傾向は
建物重量を支えているプレストレストコンクリート柱の
方が著しい。このようなプレストレストコンクリート構
造物におけるプレストレストコンクリート柱及びプレス
トレストコンクリート梁の接合端部は靱性が少ないた
め、地震等により圧壊し易いという欠点があった。本発
明は上記のような問題に鑑みてなされたものであり、そ
の目的は、プレストレストコンクリート構造物における
プレストレストコンクリート部材の圧壊し易い箇所の靱
性を高めることである。However, since such a prestressed concrete structure is a structure which gives a compressive stress to concrete, it has high strength but low toughness. This is because the strength of the PC steel material is large and the concrete on the compression side collapses before the PC steel material yields due to the action of the compression axial force, and this tendency tends to cause the prestressed concrete supporting the weight of the building. The pillar is more remarkable. Since the joint end portions of the prestressed concrete column and the prestressed concrete beam in such a prestressed concrete structure have little toughness, there is a drawback that they are easily collapsed by an earthquake or the like. The present invention has been made in view of the problems as described above, and an object thereof is to increase the toughness of a prestressed concrete member in a prestressed concrete structure, which is easily crushed.
【０００４】[0004]
【課題を解決するための手段】以上の課題を達成するた
めの本発明のプレストレストコンクリート部材は、プレ
ストレストコンクリート部材本体の接合端部に補強体を
埋設し、該補強体はスパイラル筋を密接させた筒体内に
固化材を充填してなり、前記プレストレストコンクリー
ト部材本体はプレストレストコンクリート柱或いはプレ
ストレストコンクリート梁であることを特徴とする構成
にすることである。In the prestressed concrete member of the present invention for attaining the above object, a reinforcing member is embedded in a joint end portion of a prestressed concrete member main body, and the reinforcing member has spiral spirals closely contacted with each other. A solidified material is filled in the cylinder, and the prestressed concrete member main body is a prestressed concrete column or a prestressed concrete beam.
【０００５】[0005]
【作用】而して、プレストレストコンクリート柱の下部
及び梁との接合部に、又はプレストレストコンクリート
梁の接合端部に補強体を埋設し、該補強体はスパイラル
筋を密接させた筒体内に固化材を充填したことにより、
プレストレストコンクリート柱の下部及び梁との接合部
や、プレストレストコンクリート梁の接合端部の靱性を
高めることができる。Then, a reinforcing member is embedded in the joint between the lower part of the prestressed concrete column and the beam or at the joint end of the prestressed concrete beam, and the reinforcing member is a solidifying material in the cylinder in which the spiral streaks are in close contact. By filling
It is possible to increase the toughness of the joint between the lower part of the prestressed concrete column and the beam and the joint end of the prestressed concrete beam.
【０００６】[0006]
【実施例】以下、本発明の一実施例を図面に基づいて詳
細に説明する。図１は本発明のプレストレストコンクリ
ート部材１を使用したプレストレストコンクリート構造
物Ｍの断面図であり、プレスレストコンクリート柱２の
下部及び梁との接合部と、これらプレストレストコンク
リート柱２間に架設したプレストレストコンクリート梁
３の接合端部に補強体４を埋設したものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view of a prestressed concrete structure M using the prestressed concrete member 1 of the present invention. The reinforcing body 4 is embedded in the joint end of the beam 3.
【０００７】前記プレストレストコンクリート柱２はプ
レキャスト製であり、その下部には４体の補強体４が、
また梁との接合部の突起部２ａには２体の補強体４がそ
れぞれ埋設されている。尚、前記補強体４は図３に示す
ように、前記の４本の補強体４よりも大径のものをプレ
ストレストコンクリート柱２の中央部に１体埋設するこ
ともでき、さらにこの補強体４の径及び埋設する数や場
所は、プレストレストコンクリート柱２の大きさに応じ
て任意に決定することができる。The prestressed concrete pillar 2 is made of precast material, and four reinforcing members 4 are provided under the precast concrete pillar 2.
Two reinforcing bodies 4 are embedded in the protrusions 2a at the joints with the beams. As shown in FIG. 3, the reinforcing body 4 having a diameter larger than that of the four reinforcing bodies 4 may be embedded in the central portion of the prestressed concrete column 2. The diameter and the number and location of burial can be arbitrarily determined according to the size of the prestressed concrete column 2.
【０００８】前記プレストレストコンクリート柱２間に
架設されたプレストレストコンクリート梁３も前記と同
様にプレキャスト製であり、その両接合端部には上下に
２体の補強体４が埋設されている。また、大スパンのプ
レストレストコンクリート梁３の場合は、図６及び図７
に示すように、補強体４を３体或いは４体埋設するもの
とし、該補強体４の径及び埋設する数や場所は梁の大き
さに応じて任意に決定することができる。The prestressed concrete beam 3 laid between the prestressed concrete columns 2 is also made of precast in the same manner as described above, and two reinforcing bodies 4 are vertically embedded at both joint ends thereof. Further, in the case of the large-span prestressed concrete beam 3, FIG. 6 and FIG.
As shown in FIG. 3, three or four reinforcing bodies 4 are embedded, and the diameter of the reinforcing body 4 and the number and location of the reinforcing bodies 4 can be arbitrarily determined according to the size of the beam.
【０００９】前記補強体４は、図８に示すように、スパ
イラル筋５を０〜２ｍｍの間隔で密接した筒体６の下端
に鋼製の支圧プレート７が溶接され、該筒体６内に高強
度コンクリート、モルタル、セメントペースト、石膏等
の固化材８を充填して形成されている。また前記筒体６
の内面には補強筋９を配筋することもでき、支圧プレー
ト７は筒体６の下端のみに限らず上下両端にも設けるこ
とができる（図９、図１０）。In the reinforcing body 4, as shown in FIG. 8, a steel bearing plate 7 is welded to the lower end of a cylindrical body 6 in which spiral streaks 5 are closely contacted at an interval of 0 to 2 mm. Is filled with a solidifying material 8 such as high-strength concrete, mortar, cement paste, and gypsum. Further, the cylindrical body 6
Reinforcing bars 9 can also be arranged on the inner surface of the pressure bearing plate 7, and the pressure bearing plate 7 can be provided not only at the lower end of the tubular body 6 but also at both upper and lower ends (FIGS. 9 and 10).
【００１０】また補強体４は前記のようにプレキャスト
製に限らず、現場においても製作することができる。こ
の場合は、現場打ちコンクリート柱又は現場打ちコンク
リート梁のコンクリート打設と同時に現場において筒体
６内に固化材８を充填するものである。Further, the reinforcing member 4 is not limited to the precast product as described above, but can be manufactured on site. In this case, the solidified material 8 is filled in the tubular body 6 at the site at the same time when the cast-in-place concrete pillar or the cast-in-place concrete beam is poured into the concrete.
【００１１】[0011]
【発明の効果】プレストレストコンクリート部材本体の
接合端部に補強体を埋設し、該補強体はスパイラル筋を
密接させた筒体に固化材を充填した構成であるので、靱
性の高いプレストレストコンクリート部材を提供するこ
とができる。EFFECTS OF THE INVENTION Since a reinforcing body is embedded in the joint end portion of the prestressed concrete member main body, and the reinforcing body has a structure in which a solid material is filled in a cylindrical body in which spiral muscles are closely contacted, a prestressed concrete member having high toughness Can be provided.
【００１２】プレストレストコンクリート柱の接合端部
に補強体を埋設し、該補強体がスパイラル筋を密接させ
た筒体内に固化材を充填した構成であるため、プレスト
レストコンクリート柱の接合端部の靱性を高めることが
できる。Since the reinforcing member is embedded in the joint end of the prestressed concrete column, and the solidified material is filled in the cylindrical body in which the spiral streak is closely contacted, the toughness of the joint end of the prestressed concrete column is improved. Can be increased.
【００１３】プレストレストコンクリート梁の接合端部
に補強体を埋設し、該補強体がスパイラル筋を密接させ
た筒体内に固化材を充填した構成であるため、プレスト
レストコンクリート梁の接合端部の靱性を高めることが
できる。Since the reinforcing member is embedded in the joint end portion of the prestressed concrete beam and the reinforcing member is filled with the solidifying material in the cylindrical body in which the spiral streak is closely contacted, the toughness of the joint end portion of the prestressed concrete beam is improved. Can be increased.
【図１】プレストレストコンクリート構造物の断面図で
ある。FIG. 1 is a cross-sectional view of a prestressed concrete structure.
【図２】図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.
【図３】補強体の埋設方法の他の実施例を示すプレスト
レストコンクリート柱の断面図である。FIG. 3 is a cross-sectional view of a prestressed concrete column showing another embodiment of the method for burying a reinforcing body.
【図４】図１のＢ−Ｂ線断面図である。FIG. 4 is a sectional view taken along line BB in FIG.
【図５】図１のＣ−Ｃ線断面図である。5 is a cross-sectional view taken along the line CC of FIG.
【図６】補強体の埋設方法の他の実施例を示すプレスト
レストコンクリート梁の断面図である。FIG. 6 is a cross-sectional view of a prestressed concrete beam showing another embodiment of a method for burying a reinforcing body.
【図７】補強体の埋設方法の他の実施例を示すプレスト
レストコンクリート梁の断面図である。FIG. 7 is a cross-sectional view of a prestressed concrete beam showing another embodiment of a method for burying a reinforcing body.
【図８】補強体の縦断面図である。FIG. 8 is a vertical sectional view of a reinforcing body.
【図９】及びは補強体の他の実施例を示す平面図で
ある。FIG. 9 is a plan view showing another embodiment of the reinforcing body.
【図１０】補強体の他の実施例を示す正面図である。FIG. 10 is a front view showing another embodiment of the reinforcing body.
１ プレストレストコンクリート部材 ２ プレストレストコンクリート柱 ３ プレストレストコンクリート梁 ４ 補強体 ５ スパイラル筋 ６ 筒体 ８ 固化材 1 Prestressed concrete member 2 Prestressed concrete column 3 Prestressed concrete beam 4 Reinforcement body 5 Spiral reinforcement 6 Cylindrical body 8 Solidification material
Claims (3)
接合端部に補強体を埋設し、該補強体はスパイラル筋を
密接させた筒体内に固化材を充填してなることを特徴と
するプレストレストコンクリート部材。1. A prestressed concrete member comprising a prestressed concrete member main body in which a reinforcing member is embedded in a joint end portion, and the reinforcing member is filled with a solidifying material in a cylindrical body in which spiral streaks are closely contacted.
プレストレストコンクリート柱であることを特徴とする
請求項１記載のプレストレストコンクリート部材。2. The prestressed concrete member according to claim 1, wherein the prestressed concrete member main body is a prestressed concrete column.
プレストレストコンクリート梁であることを特徴とする
請求項１記載のプレストレストコンクリート部材。3. The prestressed concrete member according to claim 1, wherein the prestressed concrete member main body is a prestressed concrete beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4096030A JP2729128B2 (en) | 1992-03-24 | 1992-03-24 | Prestressed concrete member and its structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4096030A JP2729128B2 (en) | 1992-03-24 | 1992-03-24 | Prestressed concrete member and its structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05272197A true JPH05272197A (en) | 1993-10-19 |
| JP2729128B2 JP2729128B2 (en) | 1998-03-18 |
Family
ID=14154015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4096030A Expired - Fee Related JP2729128B2 (en) | 1992-03-24 | 1992-03-24 | Prestressed concrete member and its structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2729128B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010222808A (en) * | 2009-03-23 | 2010-10-07 | Akira Wada | Building |
| CN103290993A (en) * | 2013-06-03 | 2013-09-11 | 北京工业大学 | Mid-span self-resetting soft-steel energy-dissipation concrete beam |
| CN104018671A (en) * | 2014-05-29 | 2014-09-03 | 广东工业大学 | Non-glue confined concrete column using cement paste base body fiber cloth and manufacturing method thereof |
| JP2017053196A (en) * | 2015-09-11 | 2017-03-16 | 清水建設株式会社 | Device and method for adjusting horizontal reaction |
| JP2018168600A (en) * | 2017-03-30 | 2018-11-01 | 五洋建設株式会社 | Concrete structure and method for constructing the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5509527B2 (en) * | 2008-03-07 | 2014-06-04 | 株式会社大林組 | Beam or slab design method, building |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5858353A (en) * | 1981-09-30 | 1983-04-06 | ピ−シ−株式会社 | Compression anchoring method of concrete member |
| JPH0381442A (en) * | 1989-08-23 | 1991-04-05 | Penta Ocean Constr Co Ltd | Core column made of precast concrete |
-
1992
- 1992-03-24 JP JP4096030A patent/JP2729128B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5858353A (en) * | 1981-09-30 | 1983-04-06 | ピ−シ−株式会社 | Compression anchoring method of concrete member |
| JPH0381442A (en) * | 1989-08-23 | 1991-04-05 | Penta Ocean Constr Co Ltd | Core column made of precast concrete |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010222808A (en) * | 2009-03-23 | 2010-10-07 | Akira Wada | Building |
| CN103290993A (en) * | 2013-06-03 | 2013-09-11 | 北京工业大学 | Mid-span self-resetting soft-steel energy-dissipation concrete beam |
| CN103290993B (en) * | 2013-06-03 | 2015-08-26 | 北京工业大学 | Span centre Self-resetting mild-steel energy-consumption concrete beam |
| CN104018671A (en) * | 2014-05-29 | 2014-09-03 | 广东工业大学 | Non-glue confined concrete column using cement paste base body fiber cloth and manufacturing method thereof |
| JP2017053196A (en) * | 2015-09-11 | 2017-03-16 | 清水建設株式会社 | Device and method for adjusting horizontal reaction |
| JP2018168600A (en) * | 2017-03-30 | 2018-11-01 | 五洋建設株式会社 | Concrete structure and method for constructing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2729128B2 (en) | 1998-03-18 |
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