JPH03217542A - Jointing construction of steel pipe column and slab in flat slab structure - Google Patents
Jointing construction of steel pipe column and slab in flat slab structureInfo
- Publication number
- JPH03217542A JPH03217542A JP1339790A JP1339790A JPH03217542A JP H03217542 A JPH03217542 A JP H03217542A JP 1339790 A JP1339790 A JP 1339790A JP 1339790 A JP1339790 A JP 1339790A JP H03217542 A JPH03217542 A JP H03217542A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- steel pipe
- plates
- reinforcing
- generated
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 37
- 239000010959 steel Substances 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 58
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 31
- 229910052742 iron Inorganic materials 0.000 claims abstract description 29
- 238000004080 punching Methods 0.000 claims abstract description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000010008 shearing Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
Description
【発明の詳細な説明】
(a).産業上の利用分野
本発明は,補強材が軽量で施工の簡単な、フラットスラ
ブ構造物における鋼管柱とスラブの接合構造に関する.
(b).従来の技術
従来、フラットスラブ構造物においては、柱とスラブと
の接合部付近で剪断破壊(パンチング破壊)が生じる危
険性が有ることから、剪断破壊の生じる危険断面付近に
井桁状に組み立てられた補強鉄骨を柱を貫通する形で設
け、剪断補強を行なっていた。DETAILED DESCRIPTION OF THE INVENTION (a). INDUSTRIAL APPLICATION FIELD The present invention relates to a joint structure between a steel pipe column and a slab in a flat slab structure in which the reinforcing material is lightweight and easy to construct. (b). Conventional technology Conventionally, in flat slab structures, there was a risk of shear failure (punching failure) occurring near the joints between columns and slabs, so they were assembled in parallel cross-sections near the critical cross-section where shear failure would occur. Reinforced steel frames were installed to penetrate the columns to provide shear reinforcement.
(C).発明が解決すべき問題点
しかし、柱として鋼管柱を使用すると、補強鉄骨を柱を
貫通する形で設置することは困難であり、何らかの別の
手法の開発が望まれていた。(C). Problems to be Solved by the Invention However, when steel pipe columns are used as columns, it is difficult to install reinforcing steel frames to penetrate the columns, and there has been a desire for the development of some other method.
本発明は、上記した事情に鑑み,柱として鋼管柱を用い
たフラットスラブ構造物における鋼管柱とスラブの接合
構造を提供することを目的とするものである.
(d).問題点を解決するための手段
即ち、本発明は、スラブ(3)を有し、該スラブ(3)
に鋼管(2a)を有する鋼管柱(2)を立設してなるフ
ラットスラブ構造物(1)において、前記鋼管(2a)
のスラブ(3)との交差部外周に補強鉄板(5)を、そ
の先端部がパンチング破壊の危険断面(CS)を通過し
かつその側面(5b)を垂直に立てた形で設けて構成さ
れる。In view of the above-mentioned circumstances, an object of the present invention is to provide a joint structure between a steel pipe column and a slab in a flat slab structure using steel pipe columns as columns. (d). Means for solving the problem, that is, the present invention has a slab (3), the slab (3)
In a flat slab structure (1) in which a steel pipe column (2) having a steel pipe (2a) is erected, the steel pipe (2a)
A reinforcing iron plate (5) is installed around the outer periphery of the intersection with the slab (3), with its tip passing through the critical cross section (CS) of punching failure, and its side (5b) standing vertically. Ru.
また、本発明は、補強鉄板(5)にコンクリート付着用
部材(5d)を設けて構成される。Further, the present invention is configured by providing a concrete adhesion member (5d) on the reinforcing iron plate (5).
なお、括弧内の番号等は、図面における対応する要素を
示す、便宜的なものであり、従って、本記述は図面上の
記載に限定拘束されるものではない。以下のr (e)
.作用」の欄についても同様である。Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description is not limited to the descriptions on the drawings. r (e) below
.. The same applies to the column "Effect".
(e).作用
上記した構成により、本発明は、補強鉄板(5)が鋼管
柱(2)周囲のスラブ(3)における剪断力を支持する
ように作用する。(e). Operation With the above-described configuration, the present invention operates so that the reinforcing iron plate (5) supports the shearing force in the slab (3) surrounding the steel pipe column (2).
(f).実施例 以下、本発明の実施例を図面に基づき説明する。(f). Example Embodiments of the present invention will be described below based on the drawings.
第1図は本発明によるフラットスラブ構造物における鋼
管柱とスラブの接合構造の1実施例を示す正面図、
第2図は第1図の平面図。FIG. 1 is a front view showing one embodiment of the joining structure between a steel pipe column and a slab in a flat slab structure according to the present invention, and FIG. 2 is a plan view of FIG. 1.
フラットスラブ構造物1は、第1図に示すように、水平
方向に構築されたスラブ3を有しており、スラブ3には
、断面が四角形状に形成された鋼管2aからなる鋼管柱
2が垂直方向に立設されている。鋼管2aの4つの外周
面2bのスラブ3との交差部1aに対応する位置には、
短冊状に形成された補強鉄板5がガセットプレート2c
を介してそれぞれ3枚づつ、合計12枚設けられている
。各補強鉄板5はその側面5bを垂直方向に立てた状態
で設置されており、また、各補強鉄板5の先端部は鋼管
2a外方に伸延して、フラットスラブ構造物1の鋼管柱
周りに生じる剪断応力による剪断破壊の危険性が最も高
い危険断面CSを通過する形で設置されている。また、
鋼管2aの各面に設けられた各3枚の補強鉄板5には、
第1図に示すように、各6個の係合穴5Cが、それら3
枚の補強鉄板5間で互いに整合する形で貫通穿設されて
おり、それら係合穴5cには差し込み鉄筋5dが各補強
鉄板5間を連絡する形で挿入設置されている。As shown in FIG. 1, the flat slab structure 1 has a horizontally constructed slab 3, and the slab 3 has a steel pipe column 2 made of a steel pipe 2a having a square cross section. It is installed vertically. At the positions corresponding to the intersections 1a of the four outer peripheral surfaces 2b of the steel pipe 2a with the slab 3,
The reinforcing iron plate 5 formed into a strip shape is the gusset plate 2c.
There are 12 sheets in total, 3 sheets each. Each reinforcing iron plate 5 is installed with its side surface 5b vertically erected, and the tip of each reinforcing iron plate 5 extends outward from the steel pipe 2a and is placed around the steel pipe column of the flat slab structure 1. It is installed so that it passes through the critical cross section CS where the risk of shear failure due to the generated shear stress is highest. Also,
Each of the three reinforcing iron plates 5 provided on each side of the steel pipe 2a includes:
As shown in FIG. 1, each of the six engagement holes 5C is
Penetration holes are formed between the reinforcing iron plates 5 in a manner that they align with each other, and insertion reinforcing bars 5d are inserted into the engagement holes 5c so as to communicate between the reinforcing iron plates 5.
なお、図示しないが、スラブ3及び鋼管柱2の柱・スラ
ブ交差部1aには、スラブ3を構成する通常の鉄筋も、
第1図水平及び紙面と直角方向に多数設置されている。Although not shown, at the column-slab intersection 1a of the slab 3 and the steel pipe column 2, there are also ordinary reinforcing bars that make up the slab 3.
There are many installed horizontally and perpendicularly to the paper in Figure 1.
フラットスラブ構造物1は、以上のような構成を有する
ので、鋼管柱2の周囲に生じる剪断破壊に繋がる剪断応
力は,危険断面CSを通過する形で設けられた補強鉄板
5により支持され,スラブ3のパンチング破壊は未然に
防止される。補強鉄板5はその側面5bを垂直方向に立
てた状態で設置されているので、スラブ3に生じる剪断
力に対して高い剛性を発揮することが出来る。Since the flat slab structure 1 has the above configuration, the shear stress that leads to shear failure occurring around the steel pipe column 2 is supported by the reinforcing iron plate 5 provided in a manner that passes through the critical cross section CS, and the slab 3. Punching damage is prevented. Since the reinforcing iron plate 5 is installed with its side surface 5b vertically erected, it can exhibit high rigidity against the shearing force generated in the slab 3.
なお、上述の実施例は、補強鉄板5として短冊状に形成
された鋼板をそのまま用いた場合について述κたが、本
発明は、補強鉄板5をその側面5bを垂直方向に立てた
形で設置する限り、補強鉄板5の形状はどのような形状
でも良いことは勿論である。In addition, although the above-mentioned embodiment described the case where a steel plate formed in a rectangular shape is used as it is as the reinforcing iron plate 5, in the present invention, the reinforcing iron plate 5 is installed with its side surface 5b vertically erected. Of course, the shape of the reinforcing iron plate 5 may be any shape as long as it is.
(g).発明の効果
以上説明したように本発明によれば、スラブ3を有し、
該スラブ3に鋼管2aを有する鋼管柱2を立設してなる
フラットスラブ構造物1において、前記鋼管2aのスラ
ブ3との交差部外周2bに補強鉄板5を、その先端部が
パンチング破壊の危険断面CSを通過しかつその側面5
bを垂直に立てた形で設けて構成したので、フラットス
ラブ構造物1の柱2とスラブ3との交差部18周辺のス
ラブ3に生じる剪断応力は、補強鉄板5により効果的に
支持され,パンチング破壊の発生を未然に防止すること
が出来る。(g). Effects of the Invention As explained above, according to the present invention, the slab 3 is provided,
In a flat slab structure 1 in which a steel pipe column 2 having a steel pipe 2a is erected on the slab 3, a reinforcing iron plate 5 is provided on the outer periphery 2b of the intersection of the steel pipe 2a with the slab 3, and the tip thereof is at risk of punching failure. Passing through the cross section CS and its side 5
b is provided vertically, so the shear stress generated in the slab 3 around the intersection 18 between the column 2 and the slab 3 of the flat slab structure 1 is effectively supported by the reinforcing iron plate 5. It is possible to prevent punching damage from occurring.
また、補強鉄板5は、鉄骨に比して軽量であるのでその
取扱及び設置が極めて容易であり、また補強鉄板5は鋼
管2aに取付けるだけで補強鉄板5が自立することが出
来るので特別の仮止め手段も不要とすることが出来る。In addition, since the reinforcing iron plate 5 is lighter than a steel frame, it is extremely easy to handle and install, and the reinforcing iron plate 5 can stand on its own simply by attaching it to the steel pipe 2a, so it is a special temporary material. It is also possible to eliminate the need for a stopping means.
また、補強鉄板5は板状の部材なので、補強鉄骨を用い
た場合のように補強鉄板5が柱・スラブ交差部1a周辺
のスラブ部分を閉塞してしまうようなことが無く,スラ
ブ3部分及び交差部1aに打設されるコンクリートの流
通上の障害となることは極力防止され、コンクリートの
打設に際して、柱・スラブ交差部1a及びその周辺のコ
ンクリートの充填性を良好な状態に維持することが呂来
、施工の信頼性に富む。In addition, since the reinforcing iron plate 5 is a plate-shaped member, the reinforcing iron plate 5 does not block the slab part around the column-slab intersection 1a unlike when a reinforcing steel frame is used, and the slab 3 part and Obstacles to the flow of concrete poured at the intersection 1a should be prevented as much as possible, and the fillability of the concrete in the column-slab intersection 1a and its surroundings should be maintained in a good condition when concrete is poured. The construction is highly reliable.
また、補強鉄板5に差し込み鉄筋5d等のコンクリート
付着用部材を設けると,スラブ3内に打設されたコンク
リートと補強鉄板5との間の付着を良好な状態に維持す
ることが出来る。Furthermore, if a member for adhering concrete such as reinforcing bars 5d is provided on the reinforcing iron plate 5, the adhesion between the concrete placed in the slab 3 and the reinforcing iron plate 5 can be maintained in a good state.
第1図は本発明によるフラットスラブ構造物における鋼
管柱とスラブの接合構造の1実施例を示す正面図、
1・・・・・・フラットスラブ構造物
1a・・・・・・交差部
2・・・・・・鋼管柱
2a・・・・・・鋼管
2b・・・・・・外周
3・・・・・・スラブ
5・・・・・・補強鉄板
5b・・・・・・側面
5d・・・・・・コンクリート付着用部材(差し込み鉄
筋)
CS・・・・・・危険断面FIG. 1 is a front view showing one embodiment of the joining structure of a steel pipe column and a slab in a flat slab structure according to the present invention, 1...Flat slab structure 1a...Intersection 2. ... Steel pipe column 2a ... Steel pipe 2b ... Outer periphery 3 ... Slab 5 ... Reinforcement iron plate 5b ... Side surface 5d. ...Concrete attachment member (inserted reinforcing bar) CS...Dangerous cross section
Claims (2)
を立設してなるフラットスラブ構造物において、 前記鋼管のスラブとの交差部外周に補強鉄板を、その先
端部がパンチング破壊の危険断面を通過しかつその側面
を垂直に立てた形で設けて構成したフラットスラブ構造
物における鋼管柱とスラブの接合構造。(1) In a flat slab structure having a slab and a steel pipe column having a steel pipe erected on the slab, a reinforcing steel plate is provided around the outer periphery of the intersection of the steel pipe with the slab, and the tip thereof is resistant to punching failure. A joint structure between a steel pipe column and a slab in a flat slab structure that passes through a dangerous cross section and has its sides vertically erected.
成した特許請求の範囲第1項記載のフラットスラブ構造
物における鋼管柱とスラブの接合構造。(2) A joint structure between a steel pipe column and a slab in a flat slab structure according to claim 1, which is constructed by providing a concrete adhesion member on a reinforcing iron plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1339790A JPH03217542A (en) | 1990-01-23 | 1990-01-23 | Jointing construction of steel pipe column and slab in flat slab structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1339790A JPH03217542A (en) | 1990-01-23 | 1990-01-23 | Jointing construction of steel pipe column and slab in flat slab structure |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03217542A true JPH03217542A (en) | 1991-09-25 |
Family
ID=11831984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1339790A Pending JPH03217542A (en) | 1990-01-23 | 1990-01-23 | Jointing construction of steel pipe column and slab in flat slab structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03217542A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020038423A (en) * | 2000-11-17 | 2002-05-23 | 이창남 | Reinforcing Method of Column Capital of Flat Plate |
KR100469961B1 (en) * | 2002-05-07 | 2005-02-02 | 주식회사 청조 | Steel reinforcing cage and reinforcing method of construction using steel reinforcing cage and steel fiber concrete for soft ground |
DE10251779B4 (en) * | 2002-11-05 | 2007-02-22 | Fachhochschule Gießen-Friedberg | Reinforced concrete or prestressed concrete component |
JP2008088639A (en) * | 2006-09-29 | 2008-04-17 | Kajima Corp | Connection part of steel pipe pole and flat slab |
CN103306430A (en) * | 2013-05-20 | 2013-09-18 | 山东科技大学 | Lattice type steel pipe tree-shaped column |
CN105298019A (en) * | 2015-10-30 | 2016-02-03 | 江苏沪宁钢机股份有限公司 | Diamond space oblique steel column and processing and making method thereof |
JP2021528579A (en) * | 2019-05-23 | 2021-10-21 | Jfeスチール株式会社 | Joint structure of concrete-filled steel pipe columns and reinforced concrete slabs |
-
1990
- 1990-01-23 JP JP1339790A patent/JPH03217542A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020038423A (en) * | 2000-11-17 | 2002-05-23 | 이창남 | Reinforcing Method of Column Capital of Flat Plate |
KR100469961B1 (en) * | 2002-05-07 | 2005-02-02 | 주식회사 청조 | Steel reinforcing cage and reinforcing method of construction using steel reinforcing cage and steel fiber concrete for soft ground |
DE10251779B4 (en) * | 2002-11-05 | 2007-02-22 | Fachhochschule Gießen-Friedberg | Reinforced concrete or prestressed concrete component |
JP2008088639A (en) * | 2006-09-29 | 2008-04-17 | Kajima Corp | Connection part of steel pipe pole and flat slab |
CN103306430A (en) * | 2013-05-20 | 2013-09-18 | 山东科技大学 | Lattice type steel pipe tree-shaped column |
CN105298019A (en) * | 2015-10-30 | 2016-02-03 | 江苏沪宁钢机股份有限公司 | Diamond space oblique steel column and processing and making method thereof |
CN105298019B (en) * | 2015-10-30 | 2017-09-15 | 江苏沪宁钢机股份有限公司 | Rhombus space tilts steel column and its processing method |
JP2021528579A (en) * | 2019-05-23 | 2021-10-21 | Jfeスチール株式会社 | Joint structure of concrete-filled steel pipe columns and reinforced concrete slabs |
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