JP2011089370A - Joint structure of precast concrete beam member - Google Patents

Joint structure of precast concrete beam member Download PDF

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JP2011089370A
JP2011089370A JP2009245772A JP2009245772A JP2011089370A JP 2011089370 A JP2011089370 A JP 2011089370A JP 2009245772 A JP2009245772 A JP 2009245772A JP 2009245772 A JP2009245772 A JP 2009245772A JP 2011089370 A JP2011089370 A JP 2011089370A
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joint
precast concrete
mechanical
column
joining
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Kentaro Nakagawa
健太郎 中川
Masaru Shimazaki
大 島崎
Kei Tsumagari
敬 津曲
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Shimizu Construction Co Ltd
Shimizu Corp
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Shimizu Construction Co Ltd
Shimizu Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To achieve absorption of a construction error and easy joint of a beam main reinforcement. <P>SOLUTION: A first mechanical joint 12 into which the beam main reinforcement 11 is inserted is arranged in one end part 2a of a beam member 2 made of precast concrete (the precast concrete beam member), and the beam main reinforcement 11 is projected from the other end part 2b. A second mechanical joint 15 is arranged in the midsection of a column-beam joint member 6, and reinforcing iron bars 13 for joint are arranged between the first and second mechanical joints 12, 15. Then the first mechanical joint 12 joints between the beam main reinforcement 11 inserted to the first mechanical joint 12 and the reinforcing iron bars 13 for joint, and the second mechanical joint 15 joints between the reinforcing iron bars 13 for joint and the beam main reinforcement 11 projected from the other end part 2b of the beam member 2. The first mechanical joint 12 is provided with a play 12a which can absorb the construction error of the reinforcing iron bars 13 for joint which are inserted. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、プレキャストコンクリート梁部材の接合構造に関する。   The present invention relates to a joint structure for precast concrete beam members.

近年、建築物の構築において工期短縮や品質確保を目的として、躯体にプレキャストコンクリート部材やハーフプレキャストコンクリート部材が採用されている。   In recent years, precast concrete members and half precast concrete members have been adopted for the frame for the purpose of shortening the construction period and ensuring quality in building construction.

例えば、特許文献１によれば、仕口部の外周を構成し、側面の梁主筋にあたる位置に貫通孔が設けられた筒状の外殻ＰＣ部材の貫通孔に梁主筋を挿通させ、外殻ＰＣ部材内に仕口部の内部を構成するコンクリートを打設すると共に、梁部を構成するコンクリートを打設する柱梁架構の仕口部の構築方法が開示されている。   For example, according to Patent Document 1, the beam main bar is inserted into a through-hole of a cylindrical outer shell PC member that constitutes the outer periphery of the joint portion and is provided with a through-hole at a position corresponding to the beam main bar on the side surface. There has been disclosed a method for constructing a joint portion of a column beam structure in which concrete constituting the interior of a joint portion is placed in a PC member and concrete constituting the beam portion is placed.

また、特許文献２によれば、柱用仕口部と梁とを予め一体化したＰＣ製水平構造体が、建物のＰＣ製柱の上に水平方向に取り付けられ、ＰＣ製水平構造体を構成する柱用仕口部は、柱梁接合部で少なくとも下階のＰＣ製柱に直接的に接合され、梁同士は、隣り合うＰＣ製柱の間に位置する少なくとも一つの梁接合部で直接的に接合されていて、建物の最上階の上部に設置されるＰＣ製水平構造体の柱用仕口部には複数の最上階貫通孔を縦方向に貫通形成し、最上階のＰＣ製水平構造体を支持する最上階用のＰＣ製柱の柱頭部には、柱継手部材を埋め込み、最上階用柱用接続鉄筋を最上階貫通孔に貫通させ且つ最上階用のＰＣ製柱の柱継手部材に挿入して固定することにより、最上階用ＰＣ製水平構造体と最上階用のＰＣ製柱とを柱梁接合部で接合する建物の柱梁接合構造体が開示されている。   Further, according to Patent Document 2, a horizontal structure made of PC in which a column fitting and a beam are integrated in advance is mounted on a PC column in a building in a horizontal direction to form a horizontal structure made of PC. The column joint is directly joined to at least the lower PC column at the column beam joint, and the beams are directly joined to at least one beam joint located between the adjacent PC columns. Are connected to the top of the top floor of the building, and the top part of the PC horizontal structure is formed with a plurality of top floor through holes in the vertical direction. A column joint member is embedded in the column head of the PC column for the top floor that supports the body, the column connection member of the column for the top floor PC is inserted through the connection rod for the top floor through the top floor through hole. By inserting and fixing to the top floor PC horizontal structure and the top floor PC pillar at the column beam joint Beam-to-column junction structure of the building that case have been disclosed.

また、特許文献３によれば、両端部から突出する長さの梁上端主筋を上部が露出された肋筋の内側に移動可能に挿入している半ＰＣ梁を柱上端部から長尺の柱主鉄筋を突出させてなる連設の柱間に架設していて、梁上端主筋の端部を予め一方の梁端部の近傍に片寄せてなる半ＰＣ梁を柱間に架設し、次いで直交方向の半ＰＣ梁端部を梁上端主筋が梁端部の近傍に片寄せられた一方側の柱上に落としこみ、しかる後に、梁端部の近傍に片寄せておいた梁上端主筋を半ＰＣ梁の他方側に直交方向の半ＰＣ梁端部が落とし込めるまで移動させてから直交方向の半ＰＣ梁端部を他方側の柱上に落とし込み、その後に、移動させた梁上端主筋を柱・梁接合部領域内の所定の位置まで反転移動させる半ＰＣ梁の施工方法が開示されている。   According to Patent Document 3, a half-PC beam in which a beam upper main bar protruding from both ends is movably inserted into the inside of a barb with the upper part exposed is a long column from the column upper end. A half-PC beam is installed between the columns, with the main reinforcing bar protruding between the columns, and the end of the upper end of the beam is preliminarily moved near one of the beam ends. The half-PC beam end in the direction is dropped onto a column on one side where the beam top main bar is offset near the beam end, and then the beam top main bar that is offset near the beam end is half Move the end of the PC beam to the other side of the PC beam until the end of the half PC beam can be dropped, drop the end of the PC beam on the other side onto the other side of the beam, and then move the main beam top bar to the column. A method of constructing a half-PC beam that reversely moves to a predetermined position in the beam joint area is disclosed.

特開２００８−２４０２９１号公報JP 2008-240291 A 特開２００６−１０４８５４号公報JP 2006-104854 A 特開２００４−１９７４９１号公報JP 2004-197491 A

しかしながら、プレキャストコンクリート部材やハーフプレキャストコンクリート部材は予め工場等で製作されているため、建設現場における施工誤差の処理が難しいという問題があった。また、これらの部材の接合は、接合部内の限られたスペースで接合するため作業が行いにくく、特に限られたスペースで梁主筋などを接合する場合は困難であった。   However, since the precast concrete member and the half precast concrete member are manufactured in advance in a factory or the like, there is a problem that it is difficult to process the construction error at the construction site. Further, since these members are joined in a limited space in the joint, it is difficult to perform the operation, and it is particularly difficult to join the main beam of the beam in the limited space.

本発明は、上述する問題点に鑑みてなされたもので、建設現場においてプレキャストコンクリート部材の施工誤差を吸収できると共に、梁主筋の接合を容易にできるプレキャストコンクリート梁部材の接合構造を提供することを目的とする。   The present invention has been made in view of the above-described problems, and provides a precast concrete beam member joining structure capable of absorbing construction errors of precast concrete members at a construction site and facilitating joining of beam main bars. Objective.

上記目的を達成するため、本発明に係るプレキャストコンクリート梁部材の接合構造は、柱梁接合部材の両側に配設されるプレキャストコンクリート梁部材を接合するプレキャストコンクリート梁部材の接合構造において、前記プレキャストコンクリート梁部材は一方の端部に梁主筋が挿入された第一の機械式継手が配設されると共に他方の端部からは前記梁主筋が突出して、前記柱梁接合部材は中央部に第二の機械式継手が配設され、前記第一および第二の機械式継手の間には接合用鉄筋が配設されていて、前記第一の機械式継手は前記第一の機械式継手に挿入された梁主筋と前記接合用鉄筋とを接合し、前記第二の機械式継手は前記接合用鉄筋と前記プレキャストコンクリート梁部材の他方の端部から突出する梁主筋とを接合して、前記第一および第二の機械式継手の少なくともいずれか一方は挿入される前記接合用鉄筋の施工誤差を吸収可能なガタを備えていることを特徴とする。   In order to achieve the above object, a precast concrete beam member joining structure according to the present invention is a precast concrete beam member joining structure for joining precast concrete beam members disposed on both sides of a column beam joining member. The beam member is provided with a first mechanical joint in which a beam main bar is inserted at one end, the beam main bar protrudes from the other end, and the beam-to-column connecting member is second in the center. A mechanical joint is disposed, and a reinforcing bar is disposed between the first and second mechanical joints, and the first mechanical joint is inserted into the first mechanical joint. The beam reinforcing bar and the joining reinforcing bar are joined, and the second mechanical joint joins the joining reinforcing bar and the beam reinforcing bar protruding from the other end of the precast concrete beam member, Characterized in that it comprises a first and second at least backlash capable of absorbing construction errors of the joining reinforcing bars either is inserted mechanical joints.

本発明では、プレキャストコンクリート梁部材は一方の端部に梁主筋が挿入された第一の機械式継手が配設されると共に他方の端部からは梁主筋が突出して、柱梁接合部材は中央部に第二の機械式継手が配設され、第一および第二の機械式継手の間には接合用鉄筋が配設されていて、第一の機械式継手は第一の機械式継手に挿入された梁主筋と接合用鉄筋とを接合し、第二の機械式継手は接合用鉄筋とプレキャストコンクリート梁部材の他方の端部から突出する梁主筋とを接合されて、第一および第二の機械式継手の少なくともいずれか一方は挿入される接合用鉄筋の施工誤差を吸収可能なガタを備えていることにより、接合用鉄筋の挿入位置の施工誤差があった場合にも、その施工誤差を吸収することができる。
また、第一及び第二の機械式継手と接合用鉄筋とで梁主筋を接合しているので、梁主筋の接合を容易に行うことができる。 In the present invention, the precast concrete beam member is provided with the first mechanical joint in which the beam main bar is inserted at one end, and the beam main bar protrudes from the other end. A second mechanical joint is disposed in the section, and a reinforcing bar is disposed between the first and second mechanical joints. The first mechanical joint is connected to the first mechanical joint. The inserted beam main bar and the joining reinforcing bar are joined, and the second mechanical joint is joined to the first and second joints by joining the joining reinforcing bar and the beam reinforcing bar protruding from the other end of the precast concrete beam member. Since at least one of the mechanical joints is equipped with a backlash that can absorb the construction error of the joining rebar to be inserted, even if there is a construction error in the insertion position of the joining rebar, the construction error Can be absorbed.
Further, since the beam main bars are joined by the first and second mechanical joints and the joining reinforcing bars, the beam main bars can be easily joined.

また、本発明に係るプレキャストコンクリート梁部材の接合構造では、前記プレキャストコンクリート梁部材は、予めプレキャストコンクリート外壁フレーム部材と連結されていることを特徴とする。
本発明では、プレキャストコンクリート梁部材は、予めプレキャストコンクリート外壁フレーム部材と連結されていることにより、プレキャストコンクリート梁部材とプレキャストコンクリート外壁部材とを一体化させこれらを一体的に設置することができ、工期を短縮することができる。 Moreover, in the joining structure of the precast concrete beam member which concerns on this invention, the said precast concrete beam member is connected with the precast concrete outer wall frame member previously, It is characterized by the above-mentioned.
In the present invention, the precast concrete beam member is connected to the precast concrete outer wall frame member in advance, so that the precast concrete beam member and the precast concrete outer wall member can be integrated and installed integrally. Can be shortened.

本発明によれば、プレキャストコンクリート梁部材には第一の機械式継手が配設され、柱梁接合部材には第二の機械式継手が配設されていて、第一および第二の機械式継手の少なくともいずれか一方は挿入される接合用鉄筋の施工誤差を吸収可能なガタを備えていることにより、接合用鉄筋の挿入位置の施工誤差があった場合にも、その施工誤差を吸収できると共に、第一及び第二の機械式継手と接合用鉄筋とで梁主筋を接合しているので、梁主筋の接合を容易に行うことができ、現場での管理が行い易く、また、工期短縮を図ることができる。   According to the present invention, the first mechanical joint is disposed on the precast concrete beam member, the second mechanical joint is disposed on the column beam joining member, and the first and second mechanical joints are disposed. Since at least one of the joints has a backlash that can absorb the construction error of the joining rebar to be inserted, even if there is a construction error in the insertion position of the joining rebar, the construction error can be absorbed At the same time, since the beam main bars are joined by the first and second mechanical joints and the reinforcing bars, the beam main bars can be easily joined, making it easy to manage on site, and shortening the work period. Can be achieved.

（ａ）は本発明の実施の形態による柱部材および外壁ＰＣパネルフレームとの位置関係を示す図、（ｂ）は（ａ）のＡ−Ａ線断面図である。(A) is a figure which shows the positional relationship with the column member and outer wall PC panel frame by embodiment of this invention, (b) is the sectional view on the AA line of (a). 本実施の形態の梁部材の接合構造の一例を示す図である。It is a figure which shows an example of the joining structure of the beam member of this Embodiment. （ａ）、（ｂ）は本実施の形態の梁部材の接合方法の工程を説明する図である。(A), (b) is a figure explaining the process of the joining method of the beam member of this Embodiment. （ａ）、（ｂ）は図３に示す梁部材の接合方法の工程に続く工程を説明する図である。(A), (b) is a figure explaining the process following the process of the joining method of the beam member shown in FIG. 梁部材の接合構造の強度を確認するための加力試験に使用した試験体の概要を示す図である。It is a figure which shows the outline | summary of the test body used for the force test for confirming the intensity | strength of the joining structure of a beam member. 加力試験の加力サイクルを示す図である。It is a figure which shows the force cycle of a force test. 試験体Ｎｏ．１の加力試験による層間変形角と柱せん断力との関係を示す図である。Specimen No. It is a figure which shows the relationship between the interlayer deformation angle by the force test of 1 and column shear force. 試験体Ｎｏ．１の加力試験による変形角成分の推移を示す図である。Specimen No. It is a figure which shows transition of the deformation angle component by the force test of 1. FIG. 試験体Ｎｏ．２の加力試験による層間変形角と柱せん断力との関係を示す図である。Specimen No. It is a figure which shows the relationship between the interlayer deformation angle by the force test of 2, and column shear force. 試験体Ｎｏ．２の加力試験による変形角成分の推移を示す図である。Specimen No. It is a figure which shows transition of the deformation angle component by the force test of 2. FIG. 試験体Ｎｏ．３の加力試験による層間変形角と柱せん断力との関係を示す図である。Specimen No. FIG. 3 is a diagram showing a relationship between an interlayer deformation angle and a column shear force by a force test of No. 3; 試験体Ｎｏ．３の加力試験による変形角成分の推移を示す図である。Specimen No. FIG. 6 is a diagram showing a transition of a deformation angle component by a force test of 3.

以下、本発明の実施の形態によるプレキャストコンクリート梁部材の接合構造について、図１乃至図４に基づいて説明する。
図１および図２に示すように、本実施の形態では、免震構造の構造物においてプレキャスト化された鉄筋コンクリート造の梁部材（プレキャストコンクリート梁部材）２および外壁フレーム部材（プレキャストコンクリート外壁フレーム部材）３とからなる外壁ＰＣパネルフレーム４が柱部材５および柱部材５の上部に設置された柱梁接合部材６を介して配列されていて、本発明のプレキャストコンクリート梁部材の接合構造１によって柱梁接合部材６の両側に配設された梁部材２が接合されている。
図１に示すように、外壁ＰＣパネルフレーム４は、外装材としての機能と構造体としての機能とを有し、外壁フレーム部材３に太陽光発電パネルや耐力壁パネルなどのパネル７を組み込むことで多機能型のＰＣ外壁パネルとして使用することができる。外壁ＰＣパネルフレーム４は、梁部材２が外壁フレーム部材３の上部に設置されていて、梁部材２および外壁フレーム３は正面視で田の字型のフレームを構成している。 Hereinafter, the joint structure of the precast concrete beam member by embodiment of this invention is demonstrated based on FIG. 1 thru | or FIG.
As shown in FIGS. 1 and 2, in the present embodiment, a reinforced concrete beam member (precast concrete beam member) 2 and an outer wall frame member (precast concrete outer wall frame member) precast in a structure having a base isolation structure. 3 are arranged via a column member 5 and a column beam joining member 6 installed on the top of the column member 5, and the column beam is formed by the precast concrete beam member joining structure 1 of the present invention. The beam members 2 disposed on both sides of the joining member 6 are joined.
As shown in FIG. 1, the outer wall PC panel frame 4 has a function as an exterior material and a function as a structure, and a panel 7 such as a photovoltaic power generation panel or a load-bearing wall panel is incorporated in the outer wall frame member 3. It can be used as a multifunctional PC outer wall panel. In the outer wall PC panel frame 4, the beam member 2 is installed on the upper portion of the outer wall frame member 3, and the beam member 2 and the outer wall frame 3 constitute a rice field frame in a front view.

図２に示すように、梁部材２は、一方の端部２ａに第一の機械式継手１２が埋設されていて、他方の端部２ｂからは梁主筋１１が突出している。第一の機械式継手１２は、ガタ（クリアランス）１２ａが適度にあり挿入される鉄筋のずれなどの施工誤差を吸収することができる機械式継手である。具体的には、鉄筋の軸方向に直交する方向の位置ずれを吸収できる。   As shown in FIG. 2, the beam member 2 has a first mechanical joint 12 embedded in one end 2a, and a beam main bar 11 protrudes from the other end 2b. The first mechanical joint 12 is a mechanical joint that has moderate play (clearance) 12a and can absorb construction errors such as displacement of inserted reinforcing bars. Specifically, it is possible to absorb a positional shift in a direction orthogonal to the axial direction of the reinforcing bar.

柱部材５は、上部に柱梁接合部材６が一体的に設けられていて、柱部材５の柱主筋１４が柱梁接合部材６を貫通している。柱部材５は、部分的にプレキャスト化された部材で梁部材２と一体化されている。
柱梁接合部材６は、中央部に第一の機械式継手１２と軸方向および高さを合わせた第二の機械式継手１５が設置されている。第二の機械式継手１５は、ネジ式機械式継手である。 The column member 5 is integrally provided with a column beam joining member 6 at the upper portion thereof, and the column main reinforcement 14 of the column member 5 passes through the column beam joining member 6. The column member 5 is a partially precast member and is integrated with the beam member 2.
The column beam joining member 6 has a first mechanical joint 12 and a second mechanical joint 15 having the same axial direction and height as the central part. The second mechanical joint 15 is a threaded mechanical joint.

第一及び第二の機械式継手１２、１５の間には接合用鉄筋１３が設けられていて、接合用鉄筋１３は梁部材２と柱梁接合部材６とに跨るように配設されている。
第一の機械式継手１２は、梁主筋１１と接合用鉄筋１３とを接合していて、第二の機械式継手１５は、梁部材２の端部２ｂから突出する梁主筋１１と接合用鉄筋１３とを接合しており、柱梁接合部６の両側に配設された梁部材２の梁主筋１１は第一及び第二の機械式継手１２、１５と接合用鉄筋１３を介して接合されている。 A joining rebar 13 is provided between the first and second mechanical joints 12 and 15, and the joining rebar 13 is disposed so as to straddle the beam member 2 and the column beam joining member 6. .
The first mechanical joint 12 joins the beam main reinforcing bar 11 and the connecting reinforcing bar 13, and the second mechanical joint 15 connects the beam main reinforcing bar 11 protruding from the end 2 b of the beam member 2 and the connecting reinforcing bar. 13 and the beam main reinforcing bars 11 of the beam member 2 disposed on both sides of the column beam connecting portion 6 are connected to the first and second mechanical joints 12 and 15 via the connecting reinforcing bars 13. ing.

次に、本実施の形態による外壁ＰＣパネルフレーム４の接合方法について説明する。
まず、図３（ａ）に示すように柱部材５および柱梁接合部材６の配筋を行い、図３（ｂ）に示すように、柱部材５および柱梁接合部材６の間に外壁ＰＣパネルフレーム４を配設する。このとき柱梁接合部材６の一方の側に梁部材２の端部２ａが位置し、その反対側に梁部材２の端部２ｂが位置する。 Next, a method for joining the outer wall PC panel frame 4 according to the present embodiment will be described.
First, the bar member 5 and the beam-column joining member 6 are arranged as shown in FIG. 3A, and the outer wall PC is placed between the column member 5 and the beam-column joining member 6 as shown in FIG. A panel frame 4 is provided. At this time, the end 2a of the beam member 2 is located on one side of the column-beam joining member 6, and the end 2b of the beam member 2 is located on the opposite side.

そして、図４（ａ）に示すように、第一の機械式継手１２と第二の機械式継手１５との間に接合用鉄筋１３を挿入すると共に、第二の機械式継手１５の梁部材２の端部２ｂ側に梁部材２の端部２ｂから突出する梁主筋１１を挿入する。
このとき、接合用鉄筋１３は第二の機械式継手１５側の端部１３ａの位置を基準とする。そして、第一の機械式継手１２は、ガタ１２ａが適度にあり挿入される鉄筋のずれなどの施工誤差を吸収できることにより、接合用鉄筋１３は第一の機械式継手１２側の端部１３ｂの位置を第一の機械式継手１２への挿入位置で調整することにより、梁部材２の施工誤差があった場合にも梁部材２と柱梁接合部材６とを所定の位置で接合することができ、外壁ＰＣパネルフレーム４が所定の位置に配設される。 And as shown to Fig.4 (a), while inserting the reinforcing bar 13 for joining between the 1st mechanical coupling 12 and the 2nd mechanical coupling 15, the beam member of the 2nd mechanical coupling 15 The main beam 11 that protrudes from the end 2 b of the beam member 2 is inserted into the end 2 b of the second end.
At this time, the joining rebar 13 is based on the position of the end 13a on the second mechanical joint 15 side. The first mechanical joint 12 has a moderate backlash 12a and can absorb construction errors such as displacement of the inserted reinforcing bars, so that the joining reinforcing bars 13 are connected to the end portions 13b on the first mechanical joint 12 side. By adjusting the position at the insertion position to the first mechanical joint 12, the beam member 2 and the beam-to-column joining member 6 can be joined at a predetermined position even when there is a construction error of the beam member 2. The outer wall PC panel frame 4 is disposed at a predetermined position.

そして、第一および第二の機械式継手１２、１５のスリーブ内にモルタルなどの充填材を充填して梁主筋１１及び接合用鉄筋１３を接合する。
次に、図４（ｂ）に示すように柱部材５および柱梁接合部材６にコンクリートを打設し、梁部材２と柱梁接合部材６とが接合され、隣り合う外壁ＰＣパネルフレーム４が接合される。このとき、外壁ＰＣパネルフレーム４の側面を柱部材５および柱梁接合部材６の型枠の一部とすることができ、型枠の設置およびはずしの工期を短縮することができる。 The sleeves of the first and second mechanical joints 12 and 15 are filled with a filler such as mortar to join the beam reinforcing bar 11 and the joining reinforcing bar 13.
Next, as shown in FIG. 4 (b), concrete is placed on the column member 5 and the column beam joining member 6, the beam member 2 and the column beam joining member 6 are joined, and the adjacent outer wall PC panel frame 4 is connected. Be joined. At this time, the side surface of the outer wall PC panel frame 4 can be a part of the mold of the column member 5 and the column beam joining member 6, and the installation and removal work period of the mold can be shortened.

次に、上述した本実施の形態によるプレキャストコンクリート梁部材の接合構造の効果について図面を用いて説明する。
本実施の形態によるプレキャストコンクリート梁部材の接合構造１では、梁部材２の端部２ａに挿入される鉄筋の施工誤差を吸収できる第一の機械式継手１２が設けられ、柱梁接合部材６に第二の機械式継手１５が設けられていて、第一及び第二の機械式継手１２、１５の間に接合用鉄筋１３が配設されるので、建設現場において梁部材２の施工誤差を吸収することができると共に、梁主筋の接合を容易に行うことができ、現場での管理が行い易く、工期短縮を図ることができる効果を奏する。 Next, the effect of the joint structure of the precast concrete beam members according to the above-described embodiment will be described with reference to the drawings.
In the joint structure 1 of the precast concrete beam member according to the present embodiment, the first mechanical joint 12 capable of absorbing the construction error of the reinforcing bar inserted into the end portion 2a of the beam member 2 is provided. Since the second mechanical joint 15 is provided and the joining rebar 13 is disposed between the first and second mechanical joints 12 and 15, the construction error of the beam member 2 is absorbed at the construction site. In addition, it is possible to easily join the beam main bars, to easily perform on-site management, and to shorten the work period.

ここで、本実施の形態によるプレキャストコンクリート梁部材の接合構造を有する試験体に加力試験を行った。
試験体は、実大スケールで、図５（ａ）に示すように、柱梁接合部材６の上下にそれぞれ柱部材５の一部が配設されて、両側に梁部材２を含む外壁ＰＣパネルフレーム４の一部がそれぞれ配設されている。
図５（ｂ）の試験体の一覧に示すように、試験体Ｎｏ．１は仕口（柱梁接合部材）内に機械式継手を有し、試験体Ｎｏ．２および試験体Ｎｏ．３は仕口に機械式継手を備えていない。また、試験体Ｎｏ．１と試験体Ｎｏ．２は配筋が同じで、試験体Ｎｏ．３は配筋が異なる。
加力試験では、柱軸力を０．１σＢ ・Ｄ・Ｂとし、図６に示す加力サイクルで、層間変形角が±１／５００、±１／３００、±１／２００、±１／１００となるように２回ずつ正負交互に載荷した。 Here, a force test was performed on a test body having a joint structure of precast concrete beam members according to the present embodiment.
As shown in FIG. 5 (a), the test body is a full-scale scale. As shown in FIG. 5A, a part of the column member 5 is disposed above and below the column beam joining member 6, and the outer wall PC panel including the beam member 2 on both sides. A part of the frame 4 is disposed.
As shown in the list of specimens in FIG. No. 1 has a mechanical joint in the joint (column beam joint member). 2 and Specimen No. No. 3 does not have a mechanical joint at the end. In addition, the specimen No. 1 and specimen No. No. 2 has the same bar arrangement and specimen No. 3 has different bar arrangements.
In the force test, the column axial force is set to 0.1σ B · D · B, and in the force cycle shown in FIG. 6, the interlayer deformation angles are ± 1/500, ± 1/300, ± 1/200, ± 1 / It was loaded alternately with positive and negative two times so as to be 100.

次に、上述した加力試験の結果について図面に基づいて説明する。
図７乃至図１２では各試験体の荷重変形関係と変形角成分の推移を示している。図７および図８からわかるように、試験体Ｎｏ．１は荷重変形関係が安定しており、図９に示す試験体Ｎｏ．２の荷重変形関係と同様であることが確認できる。
従って、仕口内に継手が設けられても構造性能上問題なく、梁部材２の端部２ａに第一の機械式継手１２を配設して、柱梁接合部６に第二の機械式継手１５を配設し、第一及び第二の機械式継手１２、１５の間に接合用鉄筋１３を配設した本発明のプレキャストコンクリート梁部材の接合構造の構造性能が検証される。 Next, the results of the force test described above will be described with reference to the drawings.
7 to 12 show the load deformation relationship and the transition of the deformation angle component of each specimen. As can be seen from FIG. 7 and FIG. No. 1 has a stable load deformation relationship, and the specimen No. 1 shown in FIG. It can be confirmed that this is the same as the load deformation relationship of No. 2.
Therefore, even if a joint is provided in the joint, there is no problem in structural performance, and the first mechanical joint 12 is disposed at the end 2a of the beam member 2, and the second mechanical joint is provided at the beam-column joint 6. The structural performance of the joint structure of the precast concrete beam member of the present invention in which 15 is disposed and the rebar 13 for joining is disposed between the first and second mechanical joints 12 and 15 is verified.

以上、本発明によるプレキャストコンクリート梁部材の接合構造の実施の形態について説明したが、本発明は上記の実施の形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。
例えば、上述した実施の形態では、梁部材２は外壁フレーム部材３と予め一体化されて外壁ＰＣパネルフレーム４を構成しているが、外壁フレーム３と予め一体化されていなくてもよく、外壁フレーム３と一体化されていない梁部材２の接合に本発明のプレキャストコンクリート梁部材の接合構造１を適用させてもよい。
また、例えば上述した実施の形態では、免震構造の構造物に本発明のプレキャストコンクリート梁部材の接合構造１を採用しているが、免震構造でない構造物におけるプレキャストコンクリート梁部材の接合に本発明のプレキャストコンクリート梁部材の接合構造１を採用してもよい。
また、上述した実施の形態では、梁部材２の一方の端部に設置される第一の機械式継手１２を鉄筋の施工誤差を吸収できる機械式継手とし、柱梁接合部材６に設置される第二の機械式継手１５をネジ式機械式継手としているが、例えば、第一および第二の機械式継手１２、１５を鉄筋の施工誤差を吸収できる機械式継手としてもよい。 As mentioned above, although embodiment of the joining structure of the precast concrete beam member by this invention was described, this invention is not limited to said embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the above-described embodiment, the beam member 2 is integrated with the outer wall frame member 3 in advance to form the outer wall PC panel frame 4, but may not be integrated with the outer wall frame 3 in advance. The joint structure 1 of the precast concrete beam member of the present invention may be applied to the joint of the beam member 2 that is not integrated with the frame 3.
Further, for example, in the above-described embodiment, the precast concrete beam member joining structure 1 of the present invention is adopted for a structure having a seismic isolation structure. You may employ | adopt the joining structure 1 of the precast concrete beam member of invention.
Moreover, in embodiment mentioned above, the 1st mechanical coupling 12 installed in one edge part of the beam member 2 is made into the mechanical coupling which can absorb the construction error of a reinforcing bar, and is installed in the column beam joining member 6. Although the second mechanical joint 15 is a threaded mechanical joint, for example, the first and second mechanical joints 12 and 15 may be mechanical joints that can absorb construction errors of reinforcing bars.

１ プレキャストコンクリート梁部材の接合構造
２ 梁部材（プレキャストコンクリート梁部材）
３ 外壁フレーム部材（プレキャストコンクリート外壁フレーム部材）
４ 外壁ＰＣパネルフレーム
６ 柱梁接合部材
１１ 梁主筋
１２ 第一の機械式継手
１３ 接合用鉄筋
１３ａ 端部
１３ｂ 端部
１５ 第二の機械式継手 1 Joint structure of precast concrete beam members 2 Beam members (precast concrete beam members)
3 Outer wall frame member (Precast concrete outer wall frame member)
4 External wall PC panel frame 6 Beam-column joint 11 Beam main reinforcement
12 1st mechanical joint 13 Reinforcing bar for joining 13a End 13b End 15 Second mechanical joint

Claims (2)

柱梁接合部材の両側に配設されるプレキャストコンクリート梁部材を接合するプレキャストコンクリート梁部材の接合構造において、
前記プレキャストコンクリート梁部材は一方の端部に梁主筋が挿入された第一の機械式継手が配設されると共に他方の端部からは前記梁主筋が突出して、前記柱梁接合部材は中央部に第二の機械式継手が配設され、前記第一および第二の機械式継手の間には接合用鉄筋が配設されていて、前記第一の機械式継手は前記第一の機械式継手に挿入された梁主筋と前記接合用鉄筋とを接合し、前記第二の機械式継手は前記接合用鉄筋と前記プレキャストコンクリート梁部材の他方の端部から突出する梁主筋とを接合して、前記第一および第二の機械式継手の少なくともいずれか一方は挿入される前記接合用鉄筋の施工誤差を吸収可能なガタを備えていることを特徴とするプレキャストコンクリート梁部材の接合構造。 In the joint structure of the precast concrete beam member that joins the precast concrete beam member disposed on both sides of the column beam joint member,
The precast concrete beam member has a first mechanical joint in which a beam main bar is inserted at one end, and the beam main bar protrudes from the other end, and the column beam joint member A second mechanical joint is disposed, and a joining rebar is disposed between the first and second mechanical joints, and the first mechanical joint is the first mechanical joint. The main reinforcing bar inserted into the joint is joined to the joining reinforcing bar, and the second mechanical joint is joined to the joining reinforcing bar and the main reinforcing beam protruding from the other end of the precast concrete beam member. At least one of the first and second mechanical joints is provided with a backlash capable of absorbing construction errors of the joining reinforcing bars to be inserted. 前記プレキャストコンクリート梁部材は、予めプレキャストコンクリート外壁フレーム部材と連結されていることを特徴とする請求項１に記載のプレキャストコンクリート梁部材の接合構造。   The joint structure of precast concrete beam members according to claim 1, wherein the precast concrete beam members are connected in advance to a precast concrete outer wall frame member.
JP2009245772A 2009-10-26 2009-10-26 Joint structure of precast concrete beam member Pending JP2011089370A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180026286A (en) * 2016-09-02 2018-03-12 삼성물산 주식회사 Grid precast concrete structure and constructing method thereof
JP7425665B2 (en) 2020-05-08 2024-01-31 五洋建設株式会社 Filler filling management method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5744036A (en) * 1980-08-28 1982-03-12 Kumagai Gumi Co Ltd Joining method of precast concrete member , pillar and mutual distance between upper and lower member
JPH055327A (en) * 1991-02-15 1993-01-14 Tokyo Tekko Kk End part connection structure between members made of precast concrete and end part connecting method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5744036A (en) * 1980-08-28 1982-03-12 Kumagai Gumi Co Ltd Joining method of precast concrete member , pillar and mutual distance between upper and lower member
JPH055327A (en) * 1991-02-15 1993-01-14 Tokyo Tekko Kk End part connection structure between members made of precast concrete and end part connecting method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180026286A (en) * 2016-09-02 2018-03-12 삼성물산 주식회사 Grid precast concrete structure and constructing method thereof
KR101954387B1 (en) * 2016-09-02 2019-03-05 삼성물산 주식회사 Grid precast concrete structure and constructing method thereof
JP7425665B2 (en) 2020-05-08 2024-01-31 五洋建設株式会社 Filler filling management method

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