JPH07568Y2 - Void slab - Google Patents
Void slabInfo
- Publication number
- JPH07568Y2 JPH07568Y2 JP16449187U JP16449187U JPH07568Y2 JP H07568 Y2 JPH07568 Y2 JP H07568Y2 JP 16449187 U JP16449187 U JP 16449187U JP 16449187 U JP16449187 U JP 16449187U JP H07568 Y2 JPH07568 Y2 JP H07568Y2
- Authority
- JP
- Japan
- Prior art keywords
- slab
- steel
- void
- web
- steel material
- 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 - Lifetime
Links
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- Rod-Shaped Construction Members (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案はボイドスラブに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a void slab.
ボイドスラブ工法としては筒状の段ボールなどの型枠を
使用して、スラブ中に中空部分を形成する工法が広く採
用されている。この中間部分間のコンクリートがウェブ
部分となるのであるが、コンクリートであるため、この
ウェブ部分によってスラブ全体の重量は依然として大き
い儘である。As the void slab method, a method of forming a hollow portion in the slab by using a form such as a cylindrical corrugated board is widely adopted. The concrete between the intermediate portions becomes the web portion, but since it is concrete, the weight of the entire slab is still large due to this web portion.
このスラブ全体の重量を低下させるため、上スラブと下
スラブの間を支えるために鉄骨を使用することが考えら
れるが、そのためにはスラブの強度を更に充分にする必
要がある。In order to reduce the weight of the entire slab, it is conceivable to use a steel frame to support between the upper slab and the lower slab, but for that purpose, it is necessary to further increase the strength of the slab.
本考案は以上のような問題点を解決するためになされた
もので、スラブ全体の重量が軽いとともに、強度も大き
なボイドスラブを提供することを目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide a void slab having a small weight and a high strength.
本考案にかかるボイドスラブは、PC鋼材をウェブ鉄骨の
長手方向に沿って下に凸に配設し、その一端は一方の大
梁に固定し、中間部は下スラブ内に埋設し、他端はPC鋼
材に緊張力を導入した後、他方の大梁に定着したもので
ある。In the void slab according to the present invention, a PC steel material is arranged to be convex downward along the longitudinal direction of the web steel frame, one end of which is fixed to one girder, the middle portion is embedded in the lower slab, and the other end is PC. After introducing tension to steel, it was established on the other girder.
以下、図に示す一実施例に基づき本考案を詳細に説明す
る。Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings.
図において１はウェブ鉄骨であり本実施例ではＩ型鋼が
使用されている。このウェブ鉄骨１は二本平行に配設さ
れている。二本のウェブ鉄骨1,1の間は補強鋼材２によ
って連結されている。In the figure, reference numeral 1 is a web steel frame, and in this embodiment, type I steel is used. Two web steel frames 1 are arranged in parallel. The two web steel frames 1 and 1 are connected by a reinforcing steel material 2.
ウェブ鉄骨1,1に沿って、各々アンボンドPC鋼材３が配
設されている。PC鋼材３としては鋼撚線が使用されてい
る。アンボンドPC鋼材３はウェブ鉄骨１の長手方向中間
部で最も低く、端部に行くにつれて徐々に高くなるよう
に下に凸に配設されている。本実施例ではウェブ鉄骨１
の長手方向中間部の補強鋼材２に貫通してPC鋼材挿通パ
イプ4,4が取付けられ、後に述べるようにして下スラブ
５のコンクリート６を打設したとき、コンクリート６中
にこのPC鋼材挿通パイプ4,4が埋まるよう配設してあ
る。この隣の補強鋼材２にも第５図のようにPC鋼材挿通
パイプ4,4が貫通して配設されている。他の補強鋼材２
には第６図に示すように挿通孔７が形成されている。こ
の挿通孔７やPC鋼材挿通パイプ４を通してPC鋼材３が配
設されている。PC鋼材３の一端は固定端であり、他端は
自由端である。Unbonded PC steel materials 3 are arranged along the web steel frames 1 and 1, respectively. Steel strands are used as the PC steel material 3. The unbonded PC steel material 3 is arranged so as to be the lowest at the middle portion in the longitudinal direction of the web steel frame 1 and convex downward so as to gradually become higher toward the end portion. In this embodiment, the web steel frame 1
When the concrete steel 6 is inserted into the concrete 6 of the lower slab 5 as will be described later, the PC steel material inserting pipes 4, 4 are attached to penetrate through the reinforcing steel material 2 in the longitudinal middle part of the PC steel material inserting pipe. It is arranged so that 4 and 4 are filled. As shown in FIG. 5, PC steel material insertion pipes 4, 4 are also provided penetrating the reinforcing steel material 2 adjacent thereto. Other reinforcing steel materials 2
An insertion hole 7 is formed in the hole as shown in FIG. The PC steel material 3 is disposed through the insertion hole 7 and the PC steel material insertion pipe 4. One end of the PC steel material 3 is a fixed end and the other end is a free end.
以上のようなウェブ鉄骨1,1の下部に縦横に鉄筋８が配
筋され、コンクリート６が打設されて下スラブ５が形成
されている。下スラブ５の形成と同時にそれが架け渡さ
れる大梁10,10が形成されアンボンドPC鋼材３の一端は
一方の大梁10に固定され、他端は他方の大梁10に自由端
として埋め込まれている。下スラブ５の形成後、ウェブ
鉄骨1,1上にキーストンプレートが敷設され、このキー
ストンプレート上に鉄筋８が配筋され、コンクリート６
が打設されて上スラブ９が形成されている。下スラブ５
のコンクリート６が硬化した後、アンボンドPC鋼材３の
自由端を引張って緊張力を導入した状態で自由端を大梁
10に定着する。複数のボイドスラブが大梁10,10の間に
並べて架け渡され床全体を構成する。Reinforcing bars 8 are arranged vertically and horizontally under the web steel frames 1 and 1 as described above, and concrete 6 is cast to form a lower slab 5. Simultaneously with the formation of the lower slab 5, girders 10 and 10 are formed over which it is bridged. One end of the unbonded PC steel material 3 is fixed to one girder 10 and the other end is embedded in the other girder 10 as a free end. After the lower slab 5 is formed, a keystone plate is laid on the web steel frames 1 and 1, and the reinforcing bar 8 is laid on the keystone plate, and the concrete 6
Is cast to form the upper slab 9. Lower slab 5
After the concrete 6 has hardened, the free end of the unbonded PC steel material 3 is pulled to pull the free end into a large beam.
Settles in 10. A plurality of void slabs are arranged side by side between the girders 10, 10 to form the entire floor.
ボイドスラブの長手方向中間部において下スラブ５へ引
張り力が作用するが、この引張り力をアンボンドPC鋼材
３によって負担することになるので、下スラブ５のコン
クリート６に大きな引張り力が作用せず、ボイドスラブ
全体の強度が向上する。A tensile force acts on the lower slab 5 in the longitudinal middle portion of the void slab, but since this tensile force is borne by the unbonded PC steel material 3, a large tensile force does not act on the concrete 6 of the lower slab 5, and the void slab 5 does not act. The overall strength is improved.
本考案のボイドスラブは以上の通りに構成されているの
で、（１）PC鋼材には上向きの懸垂力を生じ、ボイドス
ラブ全体の強度を向上させ、撓みを防止する。（２）ウ
ェブ部分は鉄骨であるのでボイドスラブが軽量となり、
スラブ面積を広くできるとともに、高層化にも有利とな
る。Since the void slab of the present invention is configured as described above, (1) an upward suspension force is generated in the PC steel material, the strength of the entire void slab is improved, and bending is prevented. (2) Since the web part is steel, the void slab is lightweight,
The slab area can be widened, and it is also advantageous for higher layers.
第１図は本考案にかかるボイドスラブの縦断面図、第２
図は大梁に架ける前の斜視図、第３図はボイドスラブの
側面図、第４図は第３図のIV部を示すもので（ａ）はボ
イド方向断面図、（ｂ）はボイド直交方向断面図、第５
図は第３図のＶ部のボイド方向断面図、第６図は第３図
のVI部を示すもので（ａ）はボイド方向断面図、（ｂ）
はボイド直交方向断面図、第７図は第３図のVII部のボ
イド方向断面図である。 １…ウェブ鉄骨、２…補強鋼材、３…PC鋼材、４…PC鋼
材挿通パイプ、５…下スラブ、６…コンクリート、７…
挿通孔、８…鉄筋、９…上スラブ、10…大梁。FIG. 1 is a vertical sectional view of a void slab according to the present invention, and FIG.
The figure is a perspective view before it is hung on the girder, Fig. 3 is a side view of the void slab, Fig. 4 shows the IV portion of Fig. 3, (a) is a cross-sectional view in the void direction, and (b) is a cross-sectional view in the direction orthogonal to the void. Figure, fifth
FIG. 6 is a sectional view taken along line V of FIG. 3, and FIG. 6 is a sectional view taken along line VI of FIG.
Is a cross-sectional view in the direction orthogonal to the void, and FIG. 7 is a cross-sectional view in the void direction of the portion VII in FIG. 1 ... Web steel frame, 2 ... Reinforcing steel, 3 ... PC steel, 4 ... PC steel insertion pipe, 5 ... Lower slab, 6 ... Concrete, 7 ...
Insertion hole, 8 ... Reinforcing bar, 9 ... Upper slab, 10 ... Large beam.
Claims (1)
ウェブ鉄骨により支えたボイドスラブにおいて、PC鋼材
をウェブ鉄骨の長手方向に沿って下に凸に配設し、その
一端は一方の大梁に固定し、中間部は下スラブ内に埋設
し、他端はPC鋼材に緊張力を導入した後、他方の大梁に
定着したことを特徴とするボイドスラブ。1. In a void slab in which an upper slab and a lower slab made of concrete are supported by a web steel frame, PC steel material is arranged so as to project downward along the longitudinal direction of the web steel frame, and one end thereof is fixed to one of the girders. However, the void slab is characterized in that the middle part is embedded in the lower slab, and the other end is introduced into the PC steel by applying a tension force and then fixed to the other girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16449187U JPH07568Y2 (en) | 1987-10-27 | 1987-10-27 | Void slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16449187U JPH07568Y2 (en) | 1987-10-27 | 1987-10-27 | Void slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0168416U JPH0168416U (en) | 1989-05-02 |
| JPH07568Y2 true JPH07568Y2 (en) | 1995-01-11 |
Family
ID=31450147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16449187U Expired - Lifetime JPH07568Y2 (en) | 1987-10-27 | 1987-10-27 | Void slab |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07568Y2 (en) |
-
1987
- 1987-10-27 JP JP16449187U patent/JPH07568Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0168416U (en) | 1989-05-02 |
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