JPH0368984B2 - - Google Patents
Info
- Publication number
- JPH0368984B2 JPH0368984B2 JP2571684A JP2571684A JPH0368984B2 JP H0368984 B2 JPH0368984 B2 JP H0368984B2 JP 2571684 A JP2571684 A JP 2571684A JP 2571684 A JP2571684 A JP 2571684A JP H0368984 B2 JPH0368984 B2 JP H0368984B2
- Authority
- JP
- Japan
- Prior art keywords
- slab
- unbonded
- reinforcement
- steel material
- steel
- 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
- 230000002787 reinforcement Effects 0.000 claims description 46
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は建築構造物におけるアンボンドPC
鋼材を用いたフラツトスラブの配筋方法に関する
ものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to unbonded PC in building structures.
This paper relates to a reinforcement method for flat slabs using steel materials.
アンボンドPC鋼材を用いたフラツトスラブ構
造は、アンボンドPC鋼材を懸垂線状に配置して、
たわみおよび振動の小さい大スパン構造を可能と
している。また、柱間隔の増大、スラブ厚の減
少、階高の低減等により施工コストの低減も図れ
る。
A flat slab structure using unbonded PC steel is made by arranging unbonded PC steel in a catenary line.
This enables large span structures with low deflection and vibration. Additionally, construction costs can be reduced by increasing column spacing, reducing slab thickness, and reducing floor height.
ところで、このようなアンボンドPC鋼材を用
いたフラツトスラブ構造では、スラブ厚が薄い
程、PC鋼材のライズ（高低差）を少しでも大き
くとることが懸垂力を確保する上で重要になる。
しかし、従来の配筋方法ではPC鋼材と直交する
配力筋のため、ライズを最大限にとることができ
なかつた。 By the way, in such a flat slab structure using unbonded PC steel materials, the thinner the slab thickness is, the more important it is to make the rise (height difference) of the PC steel materials as large as possible in order to secure the suspension force.
However, with the conventional reinforcing method, it was not possible to maximize the rise because the reinforcing bars were perpendicular to the prestressing steel.
この発明は上述のような事情の下に案出された
もので、アンボンドPC鋼材および配力筋として
のスラブ筋の配筋方法を工夫することにより、ア
ンボンドPC鋼材について最大限のライズを確保
し、フラツトスラブの性能の向上およびコストダ
ウンを図つている。
This invention was devised under the above-mentioned circumstances, and by devising the reinforcement method of unbonded PC steel and slab reinforcement as distribution reinforcement, it is possible to ensure the maximum rise of unbonded PC steel. , aiming to improve flat slab performance and reduce costs.
この発明においては、アンボンドPC鋼材がフ
ラツトスラブの上面側にくる部分の所定区間につ
いて、アンボンドPC鋼材が直交するスラブ筋の
上側に位置し、スラブ筋構成面をくぐる配筋と
し、その分のライズの増加を図つている。
In this invention, for a predetermined section of the part where the unbonded PC steel material is on the upper surface side of the flat slab, the unbonded PC steel material is located above the orthogonal slab reinforcement and is arranged to pass through the slab reinforcement surface, and the rise of that portion is We are trying to increase it.
このような配筋を可能とする方法として、アン
ボンドPC鋼材と直交するスラブ筋をアンボンド
PC鋼材の下になるスラブ筋と、上になるスラブ
筋の二組に分ける。そして、まず下になるスラブ
筋を配筋し、次にその上からアンボンドPC鋼材
を所定の位置に配置する。その後、アンボンド
PC鋼材の上になる残りのスラブ筋を配筋し、こ
れら二組に分けたスラブ筋相互を結束一体化して
配筋を完了する。なおPC鋼材としてはPC鋼線、
PCストランド等を用いる。 As a method to enable such reinforcement, unbond slab reinforcements perpendicular to the unbonded PC steel material
Separate into two sets: slab reinforcements below the PC steel material and slab reinforcements above. First, the slab reinforcements that will be underneath are placed, and then the unbonded prestressed steel material is placed in the predetermined position from above. Then unbond
Arrange the remaining slab reinforcements on top of the prestressed steel material, and complete the reinforcement arrangement by binding and integrating these two sets of slab reinforcements. In addition, PC steel materials include PC steel wire,
Use PC strands, etc.
次に図示した実施例に基づいて説明する。 Next, a description will be given based on the illustrated embodiment.
第１図はフラツトスラブ１の全体構造を概略的
に示したもので、配力筋として縦横に配したスラ
ブ筋２，３の間にアンボンドPC鋼材４を柱間位
置でスラブ１の下面側にくるよう懸垂線状に配設
してある。 Figure 1 schematically shows the overall structure of the flat slab 1. An unbonded PC steel material 4 is placed between the columns on the bottom side of the slab 1 between the slab reinforcements 2 and 3 arranged vertically and horizontally as distribution reinforcements. They are arranged in a catenary line.
第２図および第３図は従来の配筋とこの発明の
配筋を比較したもので、従来の配筋ではフラツト
スラブ１の下面側のスラブ筋２1，３1の上にアン
ボンドPC鋼材４を配し、その上にフラツトスラ
ブ１の上面側のスラブ筋２，３を配筋している。
従つて、第２図に示すようにアンボンドPC鋼材
４はこれと直交するスラブ筋２の下側に配設せざ
るを得ない。このときのライズを図中r0で示して
ある。なお、この場合、施工簡略化のため予め縦
横のスラブ筋２，３を格子状に組んで一体として
施工する方法等がとられている。 Figures 2 and 3 compare the conventional reinforcement arrangement and the reinforcement arrangement of the present invention. In the conventional reinforcement arrangement, unbonded PC steel material 4 is placed on the slab reinforcements 2 1 and 3 1 on the lower surface side of the flat slab 1. The slab reinforcements 2 and 3 on the upper surface side of the flat slab 1 are arranged thereon.
Therefore, as shown in FIG. 2, the unbonded PC steel material 4 has no choice but to be disposed below the slab reinforcement 2 orthogonal thereto. The rise at this time is indicated by r 0 in the figure. In this case, in order to simplify the construction, a method is used in which the vertical and horizontal slab reinforcements 2 and 3 are assembled in a lattice shape in advance and constructed as one.
これに対し、この発明では第３図に示すように
アンボンドPC鋼材４と直交するスラブ筋をスラ
ブ筋２ａとスラブ筋２ｂの二組に分け、アンボン
ドPC鋼材４が上に凸となる頂部において、まず
スラブ筋２ａを配筋し、次にこのスラブ筋２ａの
上を越える形でアンボンドPC鋼材４を配設し、
その上に残りのスラブ筋２ｂを配筋している。こ
のときのライズを図中ｒで示してある。 On the other hand, in the present invention, as shown in FIG. 3, the slab lines perpendicular to the unbonded PC steel material 4 are divided into two sets of slab lines 2a and slab lines 2b, and at the top where the unbonded PC steel material 4 is convex upward, First, the slab reinforcement 2a is arranged, and then the unbonded PC steel material 4 is arranged in a manner that goes over the slab reinforcement 2a.
The remaining slab reinforcements 2b are arranged on top of this. The rise at this time is indicated by r in the figure.
第４図および第５図はその配筋手順の概略を示
したもので、いずれも配筋完了時は第６図に示し
た形になる。 FIGS. 4 and 5 show an outline of the reinforcement arrangement procedure, and the shape shown in FIG. 6 is obtained when the reinforcement arrangement is completed.
第４図の場合はアンボンドPC鋼材４を配設す
る前に施工する部分と、配設した後に施工する部
分とをそれぞれ鉄筋格子としたもので、下になる
スラブ筋２ａとアンボンドPC鋼材４と平行なス
ラブ筋３の一部、上になるスラブ筋２ｂとスラブ
筋３の一部をそれぞれ予め組んでおいた状態で施
工を行なう。 In the case of Fig. 4, the part to be constructed before unbonded PC steel material 4 is placed and the part to be constructed after it are made into reinforcing bar grids, respectively, and the slab reinforcement 2a underneath and the unbonded PC steel material 4 are Construction is carried out in a state where a part of the parallel slab reinforcement 3, the upper slab reinforcement 2b, and a part of the slab reinforcement 3 are assembled in advance.
これに対し、第５図の場合は鉄筋格子としない
鉄筋生材をそのままスラブ筋２ａとし、後からス
ラブ筋３と結束するようにしたものである。 On the other hand, in the case of FIG. 5, raw reinforcing bars that are not made into a reinforcing bar grid are directly used as slab reinforcements 2a, which are later bound with slab reinforcements 3.
この発明は上述したような構成からなり、この
発明の配筋方法を用いることにより、アンボンド
PC鋼材をスラブ筋構成面をくぐり抜けるように
配設することができる。従つてその分ライズを大
きくとることができ、アンボンドPC鋼材を用い
たフラツトスラブの利点であるたわみ、振動の減
少、柱間隔の増大、スラブ厚の減少、階高の低
減、コスト低減といつた効果を最大限に発揮させ
ることができる。
This invention has the above-mentioned configuration, and by using the reinforcing method of this invention, it is possible to unbond
Prestressing steel can be placed so that it passes through the slab reinforcement surface. Therefore, the rise can be increased accordingly, and the advantages of flat slabs using unbonded PC steel materials include reduced deflection and vibration, increased column spacing, reduced slab thickness, reduced floor height, and cost reduction. can be maximized.
第１図はこの発明の実施例におけるフラツトス
ラブの縦断面図、第２図は従来例におけるアンボ
ンドPC鋼材の配置を簡略化して示した縦断面図、
第３図はこの発明の実施例における縦断面図、第
４図および第５図はそれぞれこの発明における配
筋の手順を概略的に示す斜視図、第６図は配筋の
完了した状態を示す斜視図である。
１……スラブ、２，３……スラブ筋、４……ア
ンボンドPC鋼材。
FIG. 1 is a vertical cross-sectional view of a flat slab in an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view showing a simplified arrangement of unbonded PC steel materials in a conventional example.
FIG. 3 is a longitudinal cross-sectional view of an embodiment of the present invention, FIGS. 4 and 5 are perspective views schematically showing the reinforcing steps in this invention, and FIG. 6 shows a state in which the reinforcement is completed. FIG. 1... Slab, 2, 3... Slab reinforcement, 4... Unbonded PC steel material.
Claims (1)
記アンボンドPC鋼材の下になるスラブ筋と、上
になるスラブ筋の二組に分け、まず下になるスラ
ブ筋を配筋し、その上にアンボンドPC鋼材を懸
垂線状に配設した後、上になるスラブ筋を配筋
し、先に配筋した下になるスラブ筋と結束一体化
して、アンボンドPC鋼材がスラブ筋構成面をく
ぐるように配筋することを特徴とするアンボンド
PC鋼材を用いたフラツトスラブの配筋方法。 ２ アンボンドPC鋼材に用いるPC鋼材はPC鋼
線である特許請求の範囲第１項記載のアンボンド
PC鋼材を用いたフラツトスラブの配筋方法。[Claims] 1. Slab reinforcements perpendicular to the unbonded PC steel material are divided into two sets: slab reinforcements below the unbonded PC steel material and slab reinforcements above the unbonded PC steel material, and the lower slab reinforcements are arranged first, After arranging the unbonded PC steel material in a catenary line shape on top of it, the upper slab reinforcement is arranged, and the unbonded PC steel material is unified with the lower slab reinforcement that was previously arranged. Unbonded, characterized by arranging reinforcement so that it passes through
Reinforcement method for flat slabs using prestressing steel. 2. Unbonded according to claim 1, wherein the unbonded PC steel material is a PC steel wire.
Reinforcement method for flat slabs using prestressing steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2571684A JPS60168871A (en) | 1984-02-14 | 1984-02-14 | Arrangement of flat slab using unbond pc steel material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2571684A JPS60168871A (en) | 1984-02-14 | 1984-02-14 | Arrangement of flat slab using unbond pc steel material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60168871A JPS60168871A (en) | 1985-09-02 |
| JPH0368984B2 true JPH0368984B2 (en) | 1991-10-30 |
Family
ID=12173512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2571684A Granted JPS60168871A (en) | 1984-02-14 | 1984-02-14 | Arrangement of flat slab using unbond pc steel material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60168871A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06193178A (en) * | 1992-12-25 | 1994-07-12 | Kurosawa Kensetsu Kk | Flat slab working method |
-
1984
- 1984-02-14 JP JP2571684A patent/JPS60168871A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60168871A (en) | 1985-09-02 |
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