JP2723011B2 - Construction method of steel frame reinforced concrete structure - Google Patents

Construction method of steel frame reinforced concrete structure

Info

Publication number
JP2723011B2
JP2723011B2 JP27800193A JP27800193A JP2723011B2 JP 2723011 B2 JP2723011 B2 JP 2723011B2 JP 27800193 A JP27800193 A JP 27800193A JP 27800193 A JP27800193 A JP 27800193A JP 2723011 B2 JP2723011 B2 JP 2723011B2
Authority
JP
Japan
Prior art keywords
steel
steel frame
column
beam member
joint
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
Application number
JP27800193A
Other languages
Japanese (ja)
Other versions
JPH07127136A (en
Inventor
昇 上田
貴義 角南
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.)
Kajima Corp
Original Assignee
Kajima 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 Kajima Corp filed Critical Kajima Corp
Priority to JP27800193A priority Critical patent/JP2723011B2/en
Publication of JPH07127136A publication Critical patent/JPH07127136A/en
Application granted granted Critical
Publication of JP2723011B2 publication Critical patent/JP2723011B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明は柱鉄骨と、梁鉄骨の一
部にプレキャストコンクリートが一体化した梁部材を用
いて躯体を構成する、鉄骨鉄筋コンクリート造躯体の構
築方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a steel reinforced concrete structure using a column steel frame and a beam member in which precast concrete is integrated with a part of the beam steel frame.

【0002】[0002]

【従来技術及び発明が解決しようとする課題】柱鉄骨
と、梁鉄骨とプレキャストコンクリートからなる梁部材
を用いて鉄骨鉄筋コンクリート造躯体を構築する方法で
は、通常、柱鉄骨が柱・梁の接合部を貫通する形になる
ため接合部は柱鉄骨に梁鉄骨のフランジを溶接し、プレ
キャストコンクリート内に配筋された下端主筋を、柱と
の接合部を貫通して接合部の区間に配筋された鉄筋に溶
接することにより構成されるが、柱鉄骨と、梁部材の梁
鉄骨の接合、及び主筋同士の接合が溶接に依存するため
接合部の作業に手間がかかる上、工事の日程が天候に支
配され、また溶接歪みの発生によって梁鉄骨長さの寸法
精度を低下させる可能性がある。
2. Description of the Related Art In a method of constructing a steel reinforced concrete structure using a column steel frame and a beam member made of a beam steel frame and a precast concrete, the column steel frame usually forms a joint between the column and the beam. The joint was welded to the column steel frame with a beam steel flange, and the lower main reinforcement laid in precast concrete was laid through the joint with the column in the section of the joint It is constructed by welding to rebar, but it takes time to work on the joints because the joining of the column steel beam and the beam steel of the beam member and the joining of the main rebar depend on welding, and the construction schedule depends on the weather There is a possibility that dimensional accuracy of the beam steel frame length is reduced due to the occurrence of welding distortion due to the influence of welding.

【0003】また梁部材は全長に亘って鉄骨とプレキャ
ストコンクリートの複合構造となっているため重量が大
きく、施工には揚重能力の高い機械を必要とし、揚重作
業の効率が低い。
[0003] Further, since the beam member has a composite structure of a steel frame and precast concrete over its entire length, it is heavy, requires a machine with high lifting capacity for construction, and the efficiency of lifting work is low.

【0004】この発明は上記背景を踏まえてなされたも
ので、現場での鉄骨及び鉄筋の接合作業を省力化し、ま
た揚重作業効率を高める方法を提案するものである。
[0004] The present invention has been made in view of the above background, and proposes a method of reducing the work of joining steel frames and reinforcing bars on site and improving the efficiency of lifting work.

【0005】[0005]

【課題を解決するための手段】本発明では梁部材を接合
部を貫通させ、柱鉄骨を梁部材の梁鉄骨にボルト接合す
ることにより溶接を不要にし、溶接による作業工程と、
梁鉄骨の寸法精度への影響を回避し、また梁部材のプレ
キャストコンクリートを柱との接合部の位置を除いて両
側の一部の区間にのみ一体化させることにより接合部に
おける鉄筋同士の接合作業を省略すると共に、梁部材を
軽量化し、揚重作業を効率化する。
According to the present invention, a beam member is made to penetrate a joint portion, and a column steel frame is bolted to a beam steel frame of a beam member to eliminate the need for welding.
Joint work of rebar at joints by avoiding the effect on beam dimensional accuracy and integrating precast concrete of beam members into only some sections on both sides except for joints with columns Is omitted, the weight of the beam member is reduced, and the lifting work is made more efficient.

【0006】施工は下層側の柱鉄骨の頭部上に梁部材の
中央部を載置して梁鉄骨を柱鉄骨に接合すると共に、軸
方向に隣接する梁部材の梁鉄骨を互いに接続した後、梁
部材の梁鉄骨上に上層側の柱鉄骨を載置してこれを梁鉄
骨に接合し、下層側の柱鉄骨回りと、梁部材の柱との接
合部位置の梁鉄骨回りにコンクリートを打設する、とい
う手順を繰り返して行われる。
[0006] In the construction, the center of the beam member is placed on the head of the lower column steel frame, the beam steel frame is joined to the column steel frame, and the beam steel frames of the adjacent beam members are connected to each other in the axial direction. Then, place the upper column steel frame on the beam steel beam of the beam member and join it to the beam steel frame.Concrete concrete around the lower column steel frame and around the beam steel frame at the joint position with the beam member column. The procedure of casting is repeated.

【0007】梁部材がプレキャストコンクリートから露
出した中央部の梁鉄骨の位置で柱鉄骨上に載置され、梁
鉄骨が柱鉄骨とボルト接合されることにより両鉄骨部材
間の溶接がなくなり、また梁部材が柱との接合部を貫通
することにより接合部における梁主筋を予め梁部材内に
配筋することが可能となり、主筋間の溶接もなくなる。
[0007] The beam member is placed on the column steel at the position of the beam steel at the center exposed from the precast concrete, and the beam steel is bolted to the column steel to eliminate welding between the two steel members, and When the member penetrates the joint with the column, the main beam at the joint can be arranged in the beam member in advance, and welding between the main bars is also eliminated.

【0008】梁の応力はスパン方向の中央部で小さく、
端部で大きくなることから、梁部材の柱との接合部寄り
が鉄骨鉄筋コンクリート造で、梁の中間部に該当する端
部寄りが鉄骨造で設計されることにより梁部材が全長に
亘って鉄骨鉄筋コンクリート造で製作される場合よりコ
ストが経済的になる上、重量が軽量化され、運搬や揚重
の効率が上がる。
The stress of the beam is small at the center in the span direction,
Because the beam member becomes larger at the end, the beam member is designed with steel frame reinforced concrete near the joint and the middle portion of the beam is designed with steel frame. In addition to being more economical than being made from reinforced concrete, it is lighter in weight and more efficient in transport and lifting.

【0009】[0009]

【実施例】以下本発明を一実施例を示す図面に基づいて
説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing one embodiment.

【0010】この発明は柱鉄骨11と、梁鉄骨21とその柱
1との接合部の位置を除いて両側の一部の区間に一体化
したプレキャストコンクリート22からなる梁部材20を用
いて鉄骨鉄筋コンクリート造躯体を構築する方法であ
る。
The present invention uses a steel member reinforced concrete using a beam member 20 composed of a column steel frame 11 and a precast concrete 22 integrated into a part of the both sides except for the joint between the beam frame 21 and the column 1. It is a method of building a building.

【0011】梁部材20の梁鉄骨21は図8に示すように少
なくとも1スパンの柱1,1間距離に相当する長さを持
ち、中央部で下層側の柱鉄骨11の頭部上に載置され、両
端が隣接する柱1,1間の中央部に位置する。
As shown in FIG. 8, the beam steel member 21 of the beam member 20 has a length corresponding to the distance between the columns 1 and 1 of at least one span, and is mounted on the head of the lower column steel frame 11 at the center. And both ends are located at the center between the adjacent columns 1 and 1.

【0012】プレキャストコンクリート22は図1に示す
ように柱1との接合部位置を除いて両側の一部の区間に
のみ梁鉄骨21に一体化し、完成する梁2は構造的には梁
部材20の中央部に該当する両端部が鉄骨鉄筋コンクリー
ト造で、両端部に該当する中間部が鉄骨造,または現場
で梁鉄骨21がコンクリート8によって被覆されることに
より鉄骨コンクリート造となる。前者の場合、梁鉄骨21
の両端部には耐火被覆が施される。
As shown in FIG. 1, the precast concrete 22 is integrated with the beam steel frame 21 only in a part of both sides except for the joint position with the column 1, and the completed beam 2 is structurally a beam member 20. Both ends corresponding to the center of the steel frame are made of steel reinforced concrete, and the middle portions corresponding to the both ends are made of steel, or the steel beam 21 is covered with concrete 8 on site to make steel concrete. In the former case, beam steel 21
Are provided with a fireproof coating on both ends.

【0013】プレキャストコンクリート22は縦断面上、
図2に示すように梁鉄骨21の下部フランジとウェブの回
りを包囲して梁鉄骨21に一体化し、内部には主筋(下端
主筋)23とスターラップ24が配筋される。主筋23は柱1
との接合部を貫通し、スターラップ24の上部はプレキャ
ストコンクリート22の天端から突出する。
The precast concrete 22 has a vertical section,
As shown in FIG. 2, the lower flange and the web of the beam steel 21 are surrounded and integrated with the beam steel 21, and a main reinforcing bar (lower main bar) 23 and a stirrup 24 are arranged inside. Main bar 23 is pillar 1
The upper portion of the stirrup 24 protrudes from the top end of the precast concrete 22.

【0014】梁2が鉄骨鉄筋コンクリート造となる区間
は梁部材20の、柱1を挟んだ両側位置になることから、
実施例では主筋23を環状に形成し、接合部を挟むプレキ
ャストコンクリート22,22内に連続的に周回して配筋す
ることにより主筋23に下端主筋と上端主筋を兼ねさせて
いる。
The section where the beam 2 is made of steel reinforced concrete is located on both sides of the beam member 20 with the column 1 interposed therebetween.
In the embodiment, the main reinforcement 23 is formed in an annular shape, and is continuously wrapped around and arranged in the precast concrete 22, 22 sandwiching the joint, so that the main reinforcement 23 serves as the lower main reinforcement and the upper end main reinforcement.

【0015】梁部材20はプレキャストコンクリート22,
22で挟まれた梁鉄骨21の部分で下層側の柱鉄骨11の頭部
上に載置され、この柱鉄骨11とボルト接合され、梁2の
中間部に該当する梁鉄骨21の端部が軸方向に隣接する梁
部材20の梁鉄骨21に接続される。
The beam member 20 is made of precast concrete 22,
It is placed on the head of the lower column steel frame 11 at the part of the beam steel frame 21 sandwiched by 22 and is bolted to this column steel frame 11, and the end of the beam steel frame 21 corresponding to the middle part of the beam 2 is It is connected to the beam steel frame 21 of the beam member 20 adjacent in the axial direction.

【0016】柱鉄骨11は梁鉄骨21のフランジに突き合わ
せられてボルト接合されるが、実施例では柱鉄骨11がH
形断面をすることから、図3,図4に示すように柱鉄骨
11のフランジの端部にスプリットT金物3を予め溶接
し、これを梁鉄骨21のフランジにボルト接合している。
スプリットT金物3はカットT形鋼を含み、柱鉄骨11の
フランジに重なってボルト接合される場合もある。軸方
向に隣接する梁部材20,20の梁鉄骨21,21は双方のフラ
ンジとウェブに跨設される継手プレート4とボルトによ
り接続される。
The steel column 11 is bolted to the flange of the beam steel 21 by abutting the flange.
Because of the cross-section, as shown in Figs.
The split T hardware 3 is welded in advance to the end of the flange 11 and bolted to the flange of the beam steel 21.
The split T metal piece 3 includes a cut T-section steel, and may be bolted to overlap the flange of the column steel frame 11 in some cases. The beam steel members 21, 21 of the beam members 20, 20 adjacent in the axial direction are connected by bolts to the joint plate 4 laid over both flanges and the web.

【0017】図1は梁部材20の梁鉄骨21が1スパン相当
の長さを持つ場合の実施例を示すが、梁2の応力はスパ
ン方向の中間部で小さく、端部で大きくなることから、
梁鉄骨21の寸法(成)を梁2の中間部の応力に応じて決
め、図5に示すように梁2の端部に該当する梁鉄骨21の
中間部の上下フランジをカバープレート5で補強するこ
とにより梁鉄骨21の寸法が小さく抑えられる。図6は2
スパン分の長さを持つ梁部材20の製作例を示す。
FIG. 1 shows an embodiment in which the beam steel 21 of the beam member 20 has a length corresponding to one span. The stress of the beam 2 is small at the middle part in the span direction and large at the end. ,
The dimensions (composition) of the beam steel frame 21 are determined according to the stress of the middle portion of the beam 2, and the upper and lower flanges of the middle portion of the beam steel frame 21 corresponding to the end of the beam 2 are reinforced with the cover plate 5 as shown in FIG. By doing so, the dimensions of the beam steel frame 21 can be kept small. FIG.
A production example of the beam member 20 having a length corresponding to the span will be described.

【0018】ここで図7〜図11により1層分の施工手順
を説明する。
The procedure for constructing one layer will now be described with reference to FIGS.

【0019】図7は下階のスラブコンクリートの打設が
完了した状態を示すが、このスラブから突出した柱鉄骨
11上に梁部材20が吊り込まれ(図8)、その梁鉄骨21が
柱鉄骨11に接合され、続いて隣接する梁鉄骨21,21が互
いに接続される。その後、梁部材20の下階側の柱鉄骨11
回りに主筋12及びフープ13が配筋されると同時に、柱鉄
骨11回りに柱型枠6が設置され、梁部材20上に床型枠兼
用のプレキャストコンクリート床版7が敷設される(図
9)。更に梁部材20上に上階側の柱鉄骨11が建て込まれ
(図10)、柱型枠6内とプレキャストコンクリート床版
7上にコンクリート8が打設された(図11)ところで、
1層分の施工が終了する。
FIG. 7 shows a state where the casting of the lower slab concrete is completed.
The beam member 20 is suspended on the 11 (FIG. 8), the beam steel 21 is joined to the column steel 11, and the adjacent beam steels 21 and 21 are connected to each other. After that, the column steel frame 11 on the lower floor side of the beam member 20
At the same time as the main reinforcement 12 and the hoop 13 are arranged around, the column formwork 6 is installed around the column steel frame 11, and the precast concrete floor slab 7 serving as the floor formwork is laid on the beam member 20 (FIG. 9). ). Further, a column steel frame 11 on the upper floor is erected on the beam member 20 (FIG. 10), and concrete 8 is poured into the column formwork 6 and the precast concrete slab 7 (FIG. 11).
Construction of one layer is completed.

【0020】実施例では柱鉄骨11が1層分の長さを持
ち、上下端が梁鉄骨21に接合される場合を示している
が、1層分の柱鉄骨11を分割し、その一部を予め梁鉄骨
21の上下に接合して梁部材20に一体化しておき、梁部材
20の吊り込み時に分割されている柱鉄骨11,11を互いに
接合する場合もある。
In the embodiment, the column steel frame 11 has the length of one layer, and the upper and lower ends are joined to the beam steel frame 21. However, the column steel frame 11 of one layer is divided and a part thereof is divided. The beam in advance
It is joined to the top and bottom of 21 and integrated into the beam member 20, and the beam member
In some cases, the column steel frames 11, 11 divided when the 20 is suspended are joined to each other.

【0021】[0021]

【発明の効果】この発明は以上の通りであり、梁部材を
接合部を貫通させ、柱鉄骨を梁部材の梁鉄骨にボルト接
合するものであるため溶接が不要になり、溶接による作
業工程と、梁鉄骨の寸法精度への影響が回避され、また
梁部材のプレキャストコンクリートを柱との接合部の位
置を除いて両側の一部の区間にのみ一体化させているた
め接合部における鉄筋同士の接合作業を省略することが
できる他、梁部材が軽量化され、運搬と揚重作業を効率
化することができる。
The present invention is as described above. Since a beam member is penetrated through a joint and a column steel frame is bolted to a beam steel frame of a beam member, welding becomes unnecessary, and the work process by welding is reduced. The effect on the dimensional accuracy of the beam steel is avoided, and the precast concrete of the beam member is integrated only in some sections on both sides except for the position of the joint with the column, so the reinforcing bars at the joint In addition to omitting the joining operation, the weight of the beam member is reduced, and the efficiency of the transportation and lifting operations can be improved.

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

【図1】柱・梁の接合部を示した立面図である。FIG. 1 is an elevation view showing a joint between a column and a beam.

【図2】図1における梁部材の端部位置の縦断面図であ
る。
FIG. 2 is a longitudinal sectional view of an end position of a beam member in FIG.

【図3】図1の一部詳細図である。FIG. 3 is a partially detailed view of FIG. 1;

【図4】図3の横断面図である。FIG. 4 is a cross-sectional view of FIG.

【図5】梁鉄骨の中間部をカバープレートで補強した場
合の梁部材を示した立面図である。
FIG. 5 is an elevational view showing a beam member when a middle portion of the beam steel frame is reinforced by a cover plate.

【図6】2スパン分の長さを持つ梁部材を示した立面図
である。
FIG. 6 is an elevation view showing a beam member having a length for two spans.

【図7】下階側の施工が終了した段階を示した立面図で
ある。
FIG. 7 is an elevation view showing a stage where the construction on the lower floor side is completed.

【図8】図7の次の工程を示した立面図である。FIG. 8 is an elevation view showing a step subsequent to FIG. 7;

【図9】図8の次の工程を示した立面図である。FIG. 9 is an elevation view showing a step subsequent to that of FIG. 8;

【図10】図9の次の工程を示した立面図である。FIG. 10 is an elevation view showing a step subsequent to that of FIG. 9;

【図11】図10の次の工程を示した立面図である。FIG. 11 is an elevation view showing a step subsequent to that of FIG. 10;

【符号の説明】[Explanation of symbols]

1……柱、11……柱鉄骨、12……主筋、13……フープ、
2……梁、20……梁部材、21……梁鉄骨、22……プレキ
ャストコンクリート、23……主筋、24……スターラッ
プ、3……スプリットT金物、4……継手プレート、5
……カバープレート、6……柱型枠、7……プレキャス
トコンクリート床版、8……コンクリート。
1 ... pillar, 11 ... pillar steel frame, 12 ... main bar, 13 ... hoop,
2 ... beam, 20 ... beam member, 21 ... steel beam, 22 ... precast concrete, 23 ... main bar, 24 ... stirrup, 3 ... split T hardware, 4 ... joint plate, 5
... cover plate, 6 ... column formwork, 7 ... precast concrete slab, 8 ... concrete.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 柱鉄骨と、梁鉄骨とその柱との接合部の
位置を除いて両側の一部の区間に一体化したプレキャス
トコンクリートからなる梁部材を用いて鉄骨鉄筋コンク
リート造躯体を構築する方法であり、下層側の柱鉄骨の
頭部上に梁部材の中央部を載置して梁鉄骨を柱鉄骨に接
合すると共に、軸方向に隣接する梁部材の梁鉄骨を互い
に接続した後、梁部材の梁鉄骨上に上層側の柱鉄骨を載
置してこれを梁鉄骨に接合し、下層側の柱鉄骨回りと、
梁部材の柱との接合部位置の梁鉄骨回りにコンクリート
を打設する、という手順を繰り返して躯体を構築する鉄
骨鉄筋コンクリート造躯体の構築方法。
1. A method of constructing a steel reinforced concrete structure using a column steel frame and a beam member made of precast concrete integrated into a part of a section on both sides except for a position of a joint between the beam steel frame and the column. After placing the central part of the beam member on the head of the lower column steel frame and joining the beam steel frame to the column steel frame, and connecting the beam steel frames of the axially adjacent beam members to each other, Place the upper column steel on the beam steel of the member and join it to the beam steel, around the lower column steel,
A method of constructing a steel-framed reinforced concrete skeleton by repeating the procedure of placing concrete around the beam steel at the position of the joint between the beam member and the column.
JP27800193A 1993-11-08 1993-11-08 Construction method of steel frame reinforced concrete structure Expired - Lifetime JP2723011B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27800193A JP2723011B2 (en) 1993-11-08 1993-11-08 Construction method of steel frame reinforced concrete structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27800193A JP2723011B2 (en) 1993-11-08 1993-11-08 Construction method of steel frame reinforced concrete structure

Publications (2)

Publication Number Publication Date
JPH07127136A JPH07127136A (en) 1995-05-16
JP2723011B2 true JP2723011B2 (en) 1998-03-09

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