JPH0598653A - Steel pipe concrete pillar in underground inverter construction method - Google Patents

Steel pipe concrete pillar in underground inverter construction method

Info

Publication number
JPH0598653A
JPH0598653A JP3255079A JP25507991A JPH0598653A JP H0598653 A JPH0598653 A JP H0598653A JP 3255079 A JP3255079 A JP 3255079A JP 25507991 A JP25507991 A JP 25507991A JP H0598653 A JPH0598653 A JP H0598653A
Authority
JP
Japan
Prior art keywords
steel pipe
pillar
floor
underground
concrete
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
Application number
JP3255079A
Other languages
Japanese (ja)
Other versions
JP2769937B2 (en
Inventor
Hiroshi Inoue
啓 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujita Corp
Original Assignee
Fujita Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujita Corp filed Critical Fujita Corp
Priority to JP3255079A priority Critical patent/JP2769937B2/en
Publication of JPH0598653A publication Critical patent/JPH0598653A/en
Application granted granted Critical
Publication of JP2769937B2 publication Critical patent/JP2769937B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To improve the performance of a pillar, improve the construction property, and save labor by protruding the anchor reinforcements of beam main reinforcements from the outer periphery of the connection section of the pillar and the beam of each floor of an underground structure of the steel pipe pillar having a specific height. CONSTITUTION:Thick sections 3 are formed on the inner periphery of the connection section of the pillar and the beam of each floor of a steel pipe pillar 1 having the height added with the buried length for the foundation to the preset length of the floor height of an underground structure, diaphragms 4 having openings 5 are arranged between the thick sections 3, and anchor reinforcements 2 of beam main reinforcements 12 are welded on the outer periphery. In the inverted construction method, the lower end section of the steel pipe 1 is buried in a foundation pile by the preset length, then concrete 9 is filled over the whole length in the steel pipe pillar 1 to construct a steel pipe concrete pillar. The beam main reinforcements 12 of the reinforced concrete beam 11 of each floor are connected to the anchor reinforcements 2, and the steel pipe concrete pillar, the reinforced concrete beam 11, and a slab are integrally constructed.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、地下構築物を構築する
地下逆打工法における鋼管コンクリート柱に係るもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel pipe concrete column in an underground reverse construction method for constructing an underground structure.

【0002】[0002]

【従来の技術】従来、地下構築物の構築工法として、地
下構築物の外周に山留工事を行ない、杭工事を行ったの
ち、地上部から地下に向って地下階構築物を構築する逆
打工法が行なわれている。この逆打工法は図4に示すよ
うに、山留壁aと基礎杭bを施工したのち、一次掘削d
1 を行ない、地下1階F1のトツプスラブより地下階部
を構築する。この際、地下構築物と地上構築物とを支承
するため、柱位置に仮支柱や構真柱cを建て込み、トツ
プスラブ部の柱、梁、床を支承する。
2. Description of the Related Art Conventionally, as a construction method of an underground structure, a reverse striking method of constructing a basement structure from the above-ground portion to the basement is carried out after mountain retaining work is performed on the outer periphery of the underground structure and pile work is performed. Has been. In this reverse driving method, as shown in FIG. 4, after the mountain retaining wall a and the foundation pile b have been constructed, the primary excavation d
It performs 1, to construct the basement portion than Totsupusurabu of the basement F 1. At this time, in order to support the underground structure and the above-ground structure, temporary columns and true columns c are installed at the column positions, and columns, beams, and floors of the top slab are supported.

【0003】次いで二次掘削d2 をして下階F2 を同様
にして構築し、更に基礎杭b、耐圧盤e等の基礎F3
構築したのち前記地下階の柱、壁を構築する工法であ
る。前記仮支柱や構真柱cは鉄筋コンクリート、または
鉄骨鉄筋コンクリートより構成されるもので、柱主筋、
帯筋を配筋したのち型枠を組立てコンクリートを打設
し、同打設コンクリートの強度が発現されたのち、型枠
を解体する。
Next, a secondary excavation d 2 is performed to construct a lower floor F 2 in the same manner, and a foundation F 3 such as a foundation pile b and a pressure board e is constructed, and then the pillars and walls on the basement floor are constructed. It is a construction method. The temporary columns and the true columns c are made of reinforced concrete or steel-framed reinforced concrete.
After arranging the stirrups, the formwork is assembled and concrete is placed. After the strength of the placed concrete is developed, the formwork is dismantled.

【0004】[0004]

【発明が解決しようとする課題】前記地下逆打工法にお
ける柱は、上部躯体を支持する鉄筋コンクリート、また
は鉄骨鉄筋コンクリート柱となるもので、先行階と下階
との間に柱主筋、帯筋を配筋したのち、型枠を組立て、
コンクリートを後打ちしなければならないので、型枠の
組立て、解体等の工程が煩雑になり、多くの時間と労力
を要することとなる。
The column in the above-mentioned underground reverse construction method is a reinforced concrete supporting the upper skeleton or a steel frame reinforced concrete column. After streaking, assemble the formwork,
Since the concrete must be post-cast, the steps of assembling and disassembling the formwork are complicated, and a lot of time and labor are required.

【0005】また先行階と下階との間の柱上部の打継部
はコンクリートに隙間が生じ、グラウト材を注入して補
強をするが、その施工管理が難しく、打継部の構造的欠
陥を生じる原因となることがある。本発明は前記従来技
術の有する問題点に鑑みて提案されたもので、その目的
とする処は、施工性を向上し、労務の省力化を図り、構
造的に信頼性の高い地下逆打工法における鋼管コンクリ
ート柱を提供する点にある。
In addition, a gap is formed in the concrete at the upper joint between the preceding floor and the lower floor, and concrete is injected into the joint to reinforce it, but the construction management is difficult and structural defects in the joint are caused. May cause the. The present invention has been proposed in view of the above problems of the prior art, and an object thereof is to improve the workability, save labor and labor, and have a structurally reliable underground reverse driving method. The point is to provide steel pipe concrete columns in.

【0006】[0006]

【課題を解決するための手段】前記の目的を達成するた
め、本発明に係る地下逆打工法における鋼管コンクリー
ト柱は、地下逆打工法による地下構築部の階高の所定長
と、基礎杭に対する埋設長を加算した高さを有する鋼管
柱に、前記地下構築部の各階の柱、梁接合部における外
周面より、梁主筋の定着筋を突設して構成されている。
[Means for Solving the Problems] In order to achieve the above-mentioned object, a steel pipe concrete column in the underground reverse driving method according to the present invention is provided with a predetermined length of floor height of an underground construction section by the underground reverse driving method and a foundation pile. A steel pipe column having a height obtained by adding the buried length is formed by projecting anchoring bars of beam main bars from the outer peripheral surface of the column and beam joint of each floor of the underground construction section.

【0007】請求項2の発明は、前記鋼管柱における前
記各柱、梁接合部の内周面を肉厚に形成するとともに、
同肉厚部に前記梁主筋の定着筋と同一水平面上位置にダ
イヤフラムを配設し、同各ダイヤフラムの中心部縦軸方
向に開口部を設けて構成されている。
According to a second aspect of the present invention, the inner peripheral surface of each of the columns and beam joints of the steel pipe column is formed to be thick, and
Diaphragms are arranged in the same thickness portion on the same horizontal plane as the anchor bars of the beam main bars, and an opening is provided in the central part of each diaphragm in the direction of the longitudinal axis.

【0008】[0008]

【作用】本発明に係る鋼管コンクリート柱は前記したよ
うに、鋼管柱が地下構築部の階高の所定長と基礎坑に対
する埋設長を加算した長さを有するので、前記鋼管柱を
その下端部が基礎杭コンクリートに埋設されるように建
込むと、地下構築物各階の柱梁接合部位置において、前
記鋼管柱の外周面より梁主筋の定着筋が突設されている
ので、同定着筋に梁主筋を定着することによって、前記
各階の鉄筋コンクリート梁が構築される。
As described above, in the steel pipe concrete column according to the present invention, since the steel pipe column has a length obtained by adding the predetermined length of the floor height of the underground construction part and the burial length to the foundation pit, the steel pipe column has its lower end portion. When it is built so as to be embedded in the foundation pile concrete, at the position of the beam-column joints on each floor of the underground structure, the anchor bars of the beam main bars project from the outer peripheral surface of the steel pipe columns, so By fixing the main bars, the reinforced concrete beams on each floor are constructed.

【0009】更に地下構築部の階高の所定長さと基礎杭
に対する埋設長さを加算した長さを有する鋼管柱の中空
部にコンクリートを充填することにより、地上、地下構
築物の荷重を確実に支持するとともに、各階のつなぎ部
をなくすことによって、構造上剛強な柱が構築される。
Further, by filling concrete in the hollow portion of the steel pipe column having a length obtained by adding the predetermined length of the floor height of the underground construction section and the buried length to the foundation pile, the load of the above-ground and underground construction can be reliably supported. In addition, the structurally rigid columns are constructed by eliminating the joints on each floor.

【0010】[0010]

【実施例】以下本発明を図示の実施例について説明す
る。1は地下逆打工法における鋼管コンクリート柱の主
体をなす鋼管柱で、地下に構築される構築物の階高の所
定長Hと、基礎に対する埋設長hを加算した高さを有す
る。
The present invention will be described below with reference to the illustrated embodiments. Reference numeral 1 is a steel tube column that mainly constitutes a steel tube concrete column in the underground reverse construction method, and has a height obtained by adding a predetermined length H of the floor height of a structure constructed underground and a buried length h to the foundation.

【0011】前記鋼管柱1は各階の柱、梁接合部におけ
る外周面に、梁主筋の定着筋2が溶着されている。前記
鋼管柱1における柱、梁接合部の内周面には肉厚部3が
形成されるとともに、同肉厚部3間に亘って前記定着筋
2と同一水平面上に位置するようにダイヤフラム4が配
設され、同ダイヤフラム4の中心部には縦方向に開口部
5が穿設されている。
The steel pipe pillar 1 has a fixing bar 2 of a main beam of a beam welded to the outer peripheral surface of the beam-joint of the column on each floor. A thick portion 3 is formed on the inner peripheral surface of the column-beam joint portion of the steel pipe column 1, and the diaphragm 4 is positioned so as to be located on the same horizontal plane as the fixing line 2 across the thick portion 3. Is provided, and an opening 5 is formed in the center of the diaphragm 4 in the vertical direction.

【0012】而して逆打工法における基礎部の施工に際
して、杭造成用の掘削孔6にコンクリートを打設し、現
場造成杭7を造成し、同基礎杭7に前記鋼管柱1におけ
る下端部を長さh埋設したのち、同鋼管柱1にトレミー
管8を挿入し、鋼管内全長に亘って、前記開口部5を利
用してコンクリート9を充填して、鋼管コンクリート柱
を構築する。図中10は吊治具を示す。
[0012] Thus, when constructing the foundation portion in the reverse driving method, concrete is placed in the excavation hole 6 for pile construction, the site construction pile 7 is constructed, and the lower end portion of the steel pipe column 1 is formed on the foundation pile 7. After burying for a length h, a tremie pipe 8 is inserted into the steel pipe column 1, and concrete 9 is filled over the entire length of the steel pipe using the opening 5 to construct a steel pipe concrete column. In the figure, 10 indicates a hanging jig.

【0013】かくして構築された鋼管コンクリート柱に
おける基礎杭7上部の鋼管柱1の柱梁接合部に突設され
た前記定着筋2に、地下構築物における各階の鉄筋コン
クリート梁11の梁主筋12を溶接、または継手金物を
介して接合し、鋼管コンクリート柱と各階の梁、スラブ
とを一体に構築することができる。
In the steel pipe concrete column thus constructed, the beam main bar 12 of the reinforced concrete beam 11 of each floor in the underground structure is welded to the anchor bar 2 projecting from the beam-column joint of the steel tube column 1 above the foundation pile 7. Alternatively, the steel pipe concrete column, the beam on each floor, and the slab can be integrally constructed by joining via a joint metal fitting.

【0014】[0014]

【発明の効果】本発明に係る地下逆打工法における鋼管
コンクリート柱は、地下構築部の階高の所定長と基礎杭
に対する埋設長を加算した高さを有する鋼管柱におけ
る、前記地下構築部の各階の柱、梁接合部に位置する外
周面から、梁主筋に対する定着筋が突設されていること
によって、地下構築部の各階の梁、スラブの躯体を支持
するとともに、従来のように先行階と下階との間の柱上
部の打継部コンクリートに隙間が生じることがなく、改
めて鉄筋の組立や型枠を必要とせず、そのまま躯体柱と
なるので、柱の性能が向上され、煩雑な作業がなくな
り、工程が短縮され、大幅な省力化が図られる。
EFFECTS OF THE INVENTION The steel pipe concrete column in the underground reverse construction method according to the present invention is a steel pipe column having a height obtained by adding a predetermined length of the floor height of the underground construction part and the buried length to the foundation pile of the underground construction part. From the outer peripheral surface located at the pillar and beam joints on each floor, anchoring bars for the main beam of the beam are provided so as to support the beams on each floor of the underground construction section and the slab frame, There is no gap in the joint concrete at the upper part of the pillar between the lower floor and the lower floor, and there is no need to reassemble the rebar or formwork, and it becomes a building pillar as it is, so the performance of the pillar is improved and it is complicated. There is no work, the process is shortened, and significant labor saving is achieved.

【0015】請求項2の発明は、前記鋼管柱における前
記各柱、梁接合部の内周面が肉厚に形成され、且つ同肉
厚部に前記梁主筋と同一水平面上にダイヤフラムが配設
されているので、前記柱、梁接合部の強度剛性が増大さ
れ、また前記ダイフヤラムの中心部縦軸方向に開口部が
設けられているので、鋼管柱に対するコンクリートの打
設に支障を生じない。
According to a second aspect of the present invention, the inner peripheral surface of each of the columns and the beam joint portion of the steel pipe column is formed thick, and the diaphragm is disposed in the same thickness portion on the same horizontal plane as the beam main bar. Therefore, the strength and rigidity of the column-beam joint is increased, and since the opening is provided in the central longitudinal axis direction of the die diaphragm, there is no problem in placing concrete on the steel pipe column.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る地下逆打工法における鋼管コンク
リート柱の一実施例を示す縦断面図である。
FIG. 1 is a vertical cross-sectional view showing an embodiment of a steel pipe concrete column in an underground reverse driving method according to the present invention.

【図2】鋼管柱の斜視図である。FIG. 2 is a perspective view of a steel pipe column.

【図3】(a)(b)は前記鋼管コンクリート柱の構築
工程を示す縦断面図である。
3 (a) and 3 (b) are vertical cross-sectional views showing a process of constructing the steel pipe concrete column.

【図4】従来の逆打工法の実施状況を示す縦断面図であ
る。
FIG. 4 is a vertical cross-sectional view showing a state of implementation of a conventional reverse driving method.

【符号の説明】[Explanation of symbols]

1 鋼管柱 2 梁主筋の定着筋 3 肉厚部 4 ダイヤフラム 5 開口部 7 基礎杭 9 コンクリート 11 鉄筋コンクリート梁 12 梁主筋 1 Steel tube column 2 Anchorage of beam main bar 3 Thick part 4 Diaphragm 5 Opening 7 Foundation pile 9 Concrete 11 Reinforced concrete beam 12 Beam main bar

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 地下逆打工法による地下構築部の階高の
所定長と、基礎杭に対する埋設長を加算した高さを有す
る鋼管柱に、前記地下構築部の各階の柱、梁接合部にお
ける外周面より、梁主筋の定着筋を突設してなることを
特徴とする地下逆打工法における鋼管コンクリート柱。
1. A steel pipe pillar having a height obtained by adding a predetermined length of floor height of an underground construction section by an underground construction method and an embedding length to a foundation pile, at a column-beam connection section of each floor of the underground construction section. A steel-tube concrete column in the underground reverse construction method, characterized in that anchoring bars of the beam main bars are projected from the outer peripheral surface.
【請求項2】 前記鋼管柱における前記各柱、梁接合部
の内周面を肉厚に形成するとともに、同肉厚部に前記梁
主筋の定着筋と同一水平面上位置にダイヤフラムを配設
し、同各ダイヤフラムの中心部縦軸方向に開口部を設け
てなる請求項1記載の地下逆打工法における鋼管コンク
リート柱。
2. The inner peripheral surface of each of the columns and beam joints of the steel pipe column is formed to have a thick wall, and a diaphragm is disposed at the same wall thickness position in the same horizontal plane as the anchorage of the beam main bar. 2. The steel pipe concrete pillar according to claim 1, wherein the diaphragm is provided with an opening in the central longitudinal axis direction.
JP3255079A 1991-10-02 1991-10-02 Steel tube concrete column in underground reverse driving method Expired - Fee Related JP2769937B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3255079A JP2769937B2 (en) 1991-10-02 1991-10-02 Steel tube concrete column in underground reverse driving method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3255079A JP2769937B2 (en) 1991-10-02 1991-10-02 Steel tube concrete column in underground reverse driving method

Publications (2)

Publication Number Publication Date
JPH0598653A true JPH0598653A (en) 1993-04-20
JP2769937B2 JP2769937B2 (en) 1998-06-25

Family

ID=17273845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3255079A Expired - Fee Related JP2769937B2 (en) 1991-10-02 1991-10-02 Steel tube concrete column in underground reverse driving method

Country Status (1)

Country Link
JP (1) JP2769937B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011117803A (en) * 2009-12-02 2011-06-16 Ohbayashi Corp Method for measuring build-in error of steel pipe, and steel pipe
JP2011132803A (en) * 2011-02-04 2011-07-07 Hoshin Co Ltd Form support strut for building

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5864710U (en) * 1981-10-24 1983-05-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5864710U (en) * 1981-10-24 1983-05-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011117803A (en) * 2009-12-02 2011-06-16 Ohbayashi Corp Method for measuring build-in error of steel pipe, and steel pipe
JP2011132803A (en) * 2011-02-04 2011-07-07 Hoshin Co Ltd Form support strut for building

Also Published As

Publication number Publication date
JP2769937B2 (en) 1998-06-25

Similar Documents

Publication Publication Date Title
JP2005105531A (en) Foundation structure of building and its construction method
KR101903628B1 (en) Precast Double Wall Structure with Enhanced Seismic Performance and Construction method thereof
JP2010261270A (en) Composite structure and method for constructing composite structure building
KR101006411B1 (en) System and method for underground downward construction using concrete filled tube
JPH08302892A (en) Precast structural member comprising reinforced concrete column and steel beam, and method for constructing structure using the same
KR102286225B1 (en) Method for constructing underground structure busing PC integrating method without support
JPH09209451A (en) Joint construction of up and down columns with beam and joint method
JP3039295B2 (en) Manufacturing method of prefabricated member of mixed structure
JPH0598653A (en) Steel pipe concrete pillar in underground inverter construction method
JP3424842B2 (en) Joining method of steel reinforced concrete columns in precast method
JPH05156654A (en) Top-down construction method
JP6855296B2 (en) Building foundation structure and its construction method
JP2967452B2 (en) Building construction methods and lightweight floor slabs
JP2002030672A (en) Structure of joining foundation pile to pier base and method of constructing the structure
JPH101957A (en) Underground construction method for building
JP2578671B2 (en) Column and beam construction method
JPH06299718A (en) Construction of wall, floor in atomic power plant and wall slab thereof
JP2763488B2 (en) Prefabricated pillar and inverted ramen prefabricated construction method
JPH0782892A (en) Build-in method of temporary steel column for reverse placing construction method
JPH07103620B2 (en) Construction method for steel structure
JP2001020297A (en) Sc-structured footing beam method for building
JPH0868115A (en) Connecting structure for column/beam and construction method for underground skeleton using it
JP2984626B2 (en) PC pillar construction method and its PC pillar
JP3094198B2 (en) Precast reinforced concrete member and method of constructing structure using the same
JP2000160687A (en) Construction method for composite structure and precast concrete column

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees