JP7064976B2

JP7064976B2 - RC beam structure, column beam frame

Info

Publication number: JP7064976B2
Application number: JP2018116538A
Authority: JP
Inventors: 栄二白澤; 彰西野
Original assignee: Taisei Corp
Current assignee: Taisei Corp
Priority date: 2018-06-20
Filing date: 2018-06-20
Publication date: 2022-05-11
Anticipated expiration: 2038-06-20
Also published as: JP2019218746A

Description

本発明は、建物の柱相互間に架設される、梁主筋がＸ型状に配筋されたＲＣ梁構造、及びそのＲＣ梁構造と柱部材とで構成される柱梁架構に関する。 The present invention relates to an RC beam structure in which beam main bars are arranged in an X shape, which is erected between columns of a building, and a column-beam structure composed of the RC beam structure and column members.

例えば、特許文献１には、互いに隣り合う柱の間に設けられる梁の剛性、強度を高めるため、梁の長手方向に配設された主筋をＸ字状に交差させて配筋する構成が開示されている。
このような、主筋をＸ字状に交差させて配筋するように梁を施工するに際し、例えば柱がプレキャストコンクリート造である場合等には、鉄筋を、一端を柱に埋設させ、他端が外方へ突出するように予め設けることがある。このような場合においては、これら鉄筋の他端同士が互いに対向するように２本の柱を設置した後に、他端同士を接合することで、梁の主筋が形成される。 For example, Patent Document 1 discloses a configuration in which main bars arranged in the longitudinal direction of a beam are arranged in an X-shape in order to increase the rigidity and strength of a beam provided between columns adjacent to each other. Has been done.
When constructing a beam so that the main bars cross each other in an X shape and arrange the beams, for example, when the column is made of precast concrete, one end of the reinforcing bar is embedded in the column and the other end is. It may be provided in advance so as to protrude outward. In such a case, after installing the two columns so that the other ends of these reinforcing bars face each other, the other ends are joined to form the main bar of the beam.

例えば特許文献２には、互いに隣り合う柱の間に設けられる梁の長手方向に配筋された主筋をＸ字状に交差させる部分に、Ｘ字状のスリーブを設け、各主筋の端部をスリーブ管内に挿入する構成が開示されている。
このような構成では、例えば柱をプレキャストコンクリート造とする場合、プレキャストコンクリート造の柱に埋設した鉄筋の端部を、梁の部分でＸ字状のスリーブに挿入する。しかし、梁の両側に設けた柱からそれぞれ延びる鉄筋の端部同士の間隔は狭く、鉄筋の端部をＸ字状のスリーブに挿入することは困難である。梁の両側に設けた柱からそれぞれ延びる鉄筋の端部同士の間隔を大きくしたのでは、施工精度の低下に繋がる。 For example, in Patent Document 2, an X-shaped sleeve is provided at a portion where main bars arranged in the longitudinal direction of a beam provided between adjacent columns intersect in an X-shape, and the end of each main bar is provided. The configuration to be inserted into the sleeve tube is disclosed.
In such a configuration, for example, when the column is made of precast concrete, the end portion of the reinforcing bar embedded in the column made of precast concrete is inserted into the X-shaped sleeve at the beam portion. However, the distance between the ends of the reinforcing bars extending from the columns provided on both sides of the beam is narrow, and it is difficult to insert the ends of the reinforcing bars into the X-shaped sleeve. Increasing the distance between the ends of the reinforcing bars extending from the columns provided on both sides of the beam will lead to a decrease in construction accuracy.

また、特許文献３には、２本の板状金物を重ね合わせ、中心点で結合させることによって、Ｘ状としたクロス部ジョイント金物に対し、鉄筋の端部を結合させる構成が開示されている。このような構成では、特殊なクロス部ジョイント金物を用いる必要がある。 Further, Patent Document 3 discloses a configuration in which the end portions of reinforcing bars are bonded to an X-shaped cross portion joint hardware by superimposing two plate-shaped metal fittings and connecting them at a center point. .. In such a configuration, it is necessary to use a special cross joint hardware.

特開平８－２４６５５０号公報Japanese Unexamined Patent Publication No. 8-246550 特開平８－２４６５４９号公報Japanese Unexamined Patent Publication No. 8-246549 特開２００２－２０６３１４号公報Japanese Unexamined Patent Publication No. 2002-206314

本発明の目的は、特殊な鉄筋継手金物を使用することなく、容易に精度よく構築することが可能な、柱相互間に梁主筋がＸ型状に配筋されたＲＣ梁構造、及びこれを用いた柱梁架構を提供することである。 An object of the present invention is an RC beam structure in which beam main bars are arranged in an X shape between columns, which can be easily and accurately constructed without using special reinforcing bar joint hardware. It is to provide the used column beam frame.

本発明は、上記課題を解決するため、以下の手段を採用する。
本発明者らは、柱相互間に梁主筋がＸ型状に配筋されたＲＣ梁構造として、特殊な鉄筋継手金物を使用することなく、梁中央部において、Ｘ型状に配筋される梁主筋同士の間に短い接続鉄筋を配置し、その接続鉄筋の両端部と梁主筋とを其々、汎用品の鉄筋継手金物で接合させた。よって、ＲＣ梁構造では、斜め方向に配筋される梁主筋の途中に、１箇所ではなく、２箇所、鉄筋継手金物を隣接して設けることで、複数の鉄筋継手金物によって、梁主筋を其々位置調整することが可能となり、梁部材内に特殊な鉄筋継手金物を使用することなく、Ｘ型状に配筋される斜め梁主筋を備えるＲＣ梁構造が実現可能である点に着眼して、本発明に至った。
すなわち、本発明のＲＣ梁構造は、柱相互間に梁主筋がＸ型状に配筋されたＲＣ梁構造であって、Ｘ型状に配筋された前記梁主筋は、梁の一方の端部側の第１鉄筋と、他方の端部側の第２鉄筋と、これらの間に斜めに設けられた接続鉄筋と、を備え、前記第１鉄筋と前記接続鉄筋、及び前記第２鉄筋と前記接続鉄筋は、それぞれ鉄筋継手治具で連結されていることを特徴とする。
このような構成によれば、Ｘ型状に配筋される梁主筋は、第１鉄筋と、第２鉄筋と、接続鉄筋の３分割された鉄筋で構成され、其々の鉄筋同士が鉄筋継手治具で連結されている。具体的には、鉄筋継手治具を用いて鉄筋同士を連結するときには、鉄筋継手治具に一方の鉄筋の端部を挿入しておく。その後、一方の鉄筋の端部を他方の鉄筋の端部に対向させた状態で、鉄筋継手治具を他方の鉄筋側に移動させて、鉄筋継手治具の内側に他方の鉄筋の端部を挿入する。これにより、鉄筋継手治具に、一方の鉄筋の端部と他方の鉄筋の端部が挿入され、一方の鉄筋と他方の鉄筋とを連結することができる。このような鉄筋継手治具を用い、第１鉄筋と接続鉄筋、第２鉄筋と接続鉄筋を、それぞれ連結する。これにより、第１鉄筋と接続鉄筋との間隔、第２鉄筋と接続鉄筋との間隔が狭い場合であっても、第１鉄筋と接続鉄筋、第２鉄筋と接続鉄筋を、それぞれ連結することができる。このようにして、梁主筋を構成する第１鉄筋、接続鉄筋、第２鉄筋は、特殊な鉄筋継手金物を使用することなく、Ｘ型状に連続して配筋されるＲＣ梁構造を実現できる。 The present invention employs the following means in order to solve the above problems.
The present inventors have an RC beam structure in which the beam main bars are arranged in an X shape between the columns, and the beams are arranged in an X shape in the central portion of the beam without using a special reinforcing bar joint metal fitting. Short connecting reinforcing bars were placed between the beam main bars, and both ends of the connecting reinforcing bars and the beam main bars were joined with general-purpose reinforcing bar joint hardware. Therefore, in the RC beam structure, by providing two reinforcing bar joint hardware adjacent to each other in the middle of the beam main bar arranged in the diagonal direction, the beam main bar can be provided by a plurality of reinforcing bar joint hardware. Focusing on the fact that RC beam structures with diagonal beam main bars arranged in an X shape can be realized without using special reinforcing bar joint hardware inside the beam members. , Which led to the present invention.
That is, the RC beam structure of the present invention is an RC beam structure in which the beam main bars are arranged in an X shape between the columns, and the beam main bars arranged in the X shape is one end of the beam. The first reinforcing bar on the portion side, the second reinforcing bar on the other end side, and the connecting reinforcing bar diagonally provided between them are provided, and the first reinforcing bar, the connecting reinforcing bar, and the second reinforcing bar are provided. The connecting reinforcing bars are each connected by a reinforcing bar joint jig.
According to such a configuration, the beam main reinforcing bar arranged in an X shape is composed of the first reinforcing bar, the second reinforcing bar, and the connecting reinforcing bar divided into three, and each reinforcing bar is a reinforcing bar joint. It is connected by a jig. Specifically, when connecting the reinforcing bars to each other using the reinforcing bar joint jig, the end portion of one of the reinforcing bars is inserted into the reinforcing bar joint jig. After that, with the end of one reinforcing bar facing the end of the other reinforcing bar, the reinforcing bar joint jig is moved to the other reinforcing bar side, and the end of the other reinforcing bar is placed inside the reinforcing bar joint jig. insert. As a result, the end portion of one reinforcing bar and the end portion of the other reinforcing bar are inserted into the reinforcing bar joint jig, and one reinforcing bar and the other reinforcing bar can be connected to each other. Using such a reinforcing bar joint jig, the first reinforcing bar and the connecting reinforcing bar and the second reinforcing bar and the connecting reinforcing bar are connected to each other. As a result, even when the distance between the first rebar and the connecting rebar and the distance between the second rebar and the connecting rebar are narrow, the first rebar and the connecting rebar and the second rebar and the connecting rebar can be connected, respectively. can. In this way, it is possible to realize an RC beam structure in which the first reinforcing bar, the connecting reinforcing bar, and the second reinforcing bar constituting the beam main bar are continuously arranged in an X shape without using a special reinforcing bar joint hardware. ..

本発明の一態様においては、本発明のＲＣ梁構造では、前記鉄筋継手治具の少なくとも一方は、モルタル充填式継手治具であることを特徴とする。
このような構成によれば、Ｘ型状に配筋された梁主筋を構成する第１鉄筋と接続鉄筋との間、及び接続鉄筋と第２鉄筋との間にあっては、一方のみ、或いは両方にモルタル充填式継手治具が配置され、全ての鉄筋が接合されて梁主筋が形成されている。 In one aspect of the present invention, the RC beam structure of the present invention is characterized in that at least one of the reinforced concrete joint jigs is a mortar-filled joint jig.
According to such a configuration, between the first reinforcing bar and the connecting reinforcing bar constituting the X-shaped beam main reinforcing bar, and between the connecting reinforcing bar and the second reinforcing bar, only one or both of them are provided. A mortar-filled joint jig is arranged, and all reinforcing bars are joined to form a beam main bar.

本発明の一態様においては、本発明の柱梁架構は、建物外周部の柱梁架構であって、上記したようなＲＣ梁構造と、前記ＲＣ梁構造の両側に設けられたプレキャストコンクリート造の柱部材と、を備え、前記ＲＣ梁構造の建物内部側側面は、前記柱部材の建物内部側側面と面一であり、かつ前記ＲＣ梁構造を構成する梁主筋の少なくとも１本は柱主筋の内側を梁通しで配筋されていることを特徴とする。
または、本発明の一態様においては、本発明の柱梁架構は、建物外周部の柱梁架構であって、上記したようなＲＣ梁構造と、前記ＲＣ梁構造の両側に設けられたプレキャストコンクリート造の柱部材と、を備え、前記ＲＣ梁構造の建物内部側側面は、前記柱部材の建物内部側側面より建物内部側に設けられ、かつ前記ＲＣ梁構造を構成する梁主筋の少なくとも１本は柱主筋の内側を梁通しで配筋されていることを特徴とする。
このような構成によれば、建物外周部の柱梁架構において、ＲＣ梁構造が柱部材の建物内部側側面と面一、または柱部材の建物内部側側面よりも建物内部側に設けるとともに、少なくともＲＣ梁構造を構成する梁主筋の１本が柱主筋の内側を梁通しで配筋されていることで、柱とＲＣ梁構造が大きく偏心接合されていても、ＲＣ梁構造の耐力を形成する梁主筋の少なくとも１本が梁主筋の内側を梁通しで貫通しているために、柱とＲＣ梁構造が強固に接合されることができる。
また、柱型が建物室内側に突出していないことで、室内床面積を増加させることが可能であり、利用勝手のよい建物室内を有する柱梁架構を実現出来る。 In one aspect of the present invention, the beam-beam structure of the present invention is a beam-beam structure on the outer periphery of the building, and is of an RC beam structure as described above and a precast concrete structure provided on both sides of the RC beam structure. The RC beam structure is provided with a pillar member, the side surface of the RC beam structure on the inner side of the building is flush with the side surface of the pillar member on the inner side of the building, and at least one of the beam main bars constituting the RC beam structure is the pillar main bar. It is characterized by the fact that the inside is reinforced by a beam.
Alternatively, in one aspect of the present invention, the beam-beam structure of the present invention is a beam-beam structure on the outer periphery of the building, and the RC beam structure as described above and the precast concrete provided on both sides of the RC beam structure. The building interior side side surface of the RC beam structure is provided on the building interior side from the building interior side side surface of the pillar member, and at least one of the beam main bars constituting the RC beam structure is provided. Is characterized in that the inside of the pillar main bar is arranged through a beam.
According to such a configuration, in the beam-beam structure on the outer periphery of the building, the RC beam structure is provided flush with the side surface of the pillar member on the inside side of the building, or at least on the inside side of the building rather than the side surface of the pillar member on the inside side of the building. Since one of the beam main bars constituting the RC beam structure is arranged through the beam through the inside of the column main bar, the strength of the RC beam structure is formed even if the column and the RC beam structure are largely eccentrically joined. Since at least one of the beam main bars penetrates the inside of the beam main bars through the beam, the column and the RC beam structure can be firmly joined.
Further, since the pillar type does not project to the inside of the building, it is possible to increase the floor area of the room, and it is possible to realize a pillar-beam frame having a convenient building room.

本発明によれば、容易に精度よく構築することが可能な、柱相互間に梁主筋がＸ型状に配筋されたＲＣ梁構造、及びこれを用いた柱梁架構を提供することが可能となる。 According to the present invention, it is possible to provide an RC beam structure in which beam main bars are arranged in an X shape between columns, and a column-beam frame using the RC beam structure, which can be easily and accurately constructed. Will be.

本実施形態におけるＲＣ梁構造、柱梁架構を備えた建物の構成を示す平断面図である。It is a plan sectional view which shows the structure of the building provided with the RC beam structure and the column beam frame in this embodiment. 図１に示すＲＣ梁構造と、柱梁架構の概略構成を示す正面図である。It is a front view which shows the RC beam structure shown in FIG. 1 and the schematic structure of a column beam frame. 図２に示すＲＣ梁構造の梁端部位置のＡ－Ａ矢視断面図である。FIG. 2 is a cross-sectional view taken along the line AA of the beam end position of the RC beam structure shown in FIG. 図２に示すＲＣ梁構造の正面図である。It is a front view of the RC beam structure shown in FIG. 図２に示すＲＣ梁構造の梁端部位置のＢ－Ｂ矢視断面図である。FIG. 2 is a cross-sectional view taken along the line BB of the beam end position of the RC beam structure shown in FIG. 図２に示すＲＣ梁構造の伏せ図（見下げ図）である。It is a plan (downward view) of the RC beam structure shown in FIG. 図２に示すＲＣ梁構造の斜め梁主筋の接続構造を示す部分断面図である。It is a partial cross-sectional view which shows the connection structure of the diagonal beam main bar of the RC beam structure shown in FIG. 図２に示すＲＣ梁構造の施工説明図１（ＰＣａＲＣ造の柱部材を建て込んだ状態）である。FIG. 1 is a construction explanatory view 1 (a state in which a pillar member made of PCaRC is built) of the RC beam structure shown in FIG. 図２に示すＲＣ梁構造の施工説明図２（梁主筋と、鉄筋継手治具を装着した接続鉄筋の関係）である。FIG. 2 is a construction explanatory view 2 (relationship between the beam main bar and the connecting reinforcing bar to which the reinforcing bar joint jig is attached) of the RC beam structure shown in FIG. 図２に示すＲＣ梁構造の施工説明図３（梁主筋と、鉄筋継手治具との接合状態）である。FIG. 3 is a construction explanatory view 3 (joint state of the beam main bar and the reinforcing bar joint jig) of the RC beam structure shown in FIG. 本実施形態の変形例１であり、接続鉄筋がＸ型状配筋の梁主筋より細径であるＲＣ梁構造の正面図である。It is a modification 1 of this embodiment, and is a front view of the RC beam structure in which the connecting reinforcing bar has a smaller diameter than the beam main bar of the X-shaped reinforcing bar. 本実施形態の変形例２であり、接続鉄筋の一方端のみにモルタル充填式継手治具が取り付けられたＲＣ梁構造の正面図である。FIG. 2 is a modification 2 of the present embodiment, and is a front view of an RC beam structure in which a mortar-filled joint jig is attached only to one end of a connecting reinforcing bar. 本実施形態の変形例３であり、ＲＣ梁構造が柱部材より建物内部側に設けられた部分矢視断面図である。FIG. 3 is a modification 3 of the present embodiment, and is a partial cross-sectional view in which the RC beam structure is provided on the inner side of the building from the pillar member. 図１３及び図３に示す本実施形態の柱梁架構の部分斜視図である。13 is a partial perspective view of the column-beam frame of the present embodiment shown in FIGS. 13 and 3.

本発明は、柱相互間に梁主筋がＸ型状に配筋されたＲＣ梁構造、及びそのＲＣ梁構造とプレキャストコンクリート造の柱部材で形成される建物外周部の柱梁架構である。
ＲＣ梁構造の実施形態では、梁主筋は、上下段ともに其々２段配筋され、かつ上下段ともに外側の梁主筋は梁の材軸方向に平行配筋され、上下段ともに内側の梁主筋はＸ型状に配筋されている。また、Ｘ型状に配筋された梁主筋では、梁中央付近に接続鉄筋が配置され、その接続鉄筋の両端部に汎用品の鉄筋継手治具が設けられ、梁主筋と鉄筋継手治具、及び接続鉄筋が接合されている（図２～図１０）。
変形例１では、接続鉄筋の外径がＸ型状配筋の梁主筋より細径である点が上記実施形態とは異なり、他は同様である（図１１）。
変形例２では、柱に定着された梁主筋の端部側に事前に嵌合継手治具が取り付けられ、かつ接続鉄筋には一方端のみにモルタル充填式継手治具が取付けられている点が上記実施形態とは異なり、他は同様である（図１２）。
変形例３では、ＲＣ梁構造の建物内部側側面が、柱部材の建物内部側側面より建物内部側に設けられている点が上記実施形態とは異なり、他は同様である（図１３）。 The present invention is an RC beam structure in which beam main bars are arranged in an X shape between columns, and a column-beam structure at the outer periphery of a building formed of the RC beam structure and precast concrete column members.
In the embodiment of the RC beam structure, the beam main bars are arranged in two stages in each of the upper and lower stages, and the outer beam main bars in both the upper and lower stages are arranged in parallel in the material axis direction of the beam, and the upper and lower stages are inner beam main bars. Is arranged in an X shape. Further, in the beam main bar arranged in an X shape, connecting reinforcing bars are arranged near the center of the beam, and general-purpose reinforcing bar joint jigs are provided at both ends of the connecting reinforcing bars. And the connecting reinforcing bars are joined (FIGS. 2 to 10).
Modification 1 is different from the above embodiment in that the outer diameter of the connecting reinforcing bar is smaller than that of the beam main bar of the X-shaped reinforcing bar, and is the same except for the above embodiment (FIG. 11).
In the second modification, the fitting joint jig is attached in advance to the end side of the beam main bar fixed to the column, and the mortar filling type joint jig is attached to only one end of the connecting reinforcing bar. Unlike the above embodiment, the others are the same (FIG. 12).
Modification 3 is different from the above embodiment in that the side surface of the RC beam structure on the inner side of the building is provided on the inner side of the building from the side surface of the pillar member on the inner side of the building, and the other aspects are the same (FIG. 13).

以下、添付図面を参照して、本発明によるＲＣ梁構造、柱梁架構を実施するための形態について、図面に基づいて説明する。
本実施形態におけるＲＣ梁構造、柱梁架構を備えた建物の構成を示す平断面図を図１に示す。図２は、図１に示すＲＣ梁構造と、柱梁架構の概略構成を示す正面図である。図３は、図２に示すＲＣ梁構造の梁端部位置のＡ－Ａ矢視断面図である。図４は、図２に示すＲＣ梁構造の正面図である。図５は、図２に示すＲＣ梁構造の梁端部位置のＢ－Ｂ矢視断面図である。図６は、図２に示すＲＣ梁構造の伏せ図（見下げ図）である。図７は、図２に示すＲＣ梁構造の斜め梁主筋の接続構造を示す断面図である。図８は、図２に示すＲＣ梁構造の施工説明図１（ＰＣａＲＣ造の柱部材を建て込んだ状態）であり、プレキャストコンクリート造の柱部材を建て込んだ状態を示す図である。図９は、図２に示すＲＣ梁構造の施工説明図２（梁主筋と、鉄筋継手治具を装着した接続鉄筋の関係）である。図１０は、図２に示すＲＣ梁構造の施工説明図３（梁主筋と、鉄筋継手治具との接合状態）である。
図１に示されるように、建物１は、地盤中に構築された図示しない基礎部と、基礎部上に構築された上部構造体２と、を備えている。
上部構造体２は、上下方向に複数階を有している。上部構造体２は、複数本の柱３と、互いに隣接する柱３の間に架設された梁４と、を備えている。 Hereinafter, with reference to the attached drawings, the RC beam structure and the embodiment for implementing the column-beam frame according to the present invention will be described with reference to the drawings.
FIG. 1 shows a plan sectional view showing the structure of a building provided with an RC beam structure and a column-beam frame in the present embodiment. FIG. 2 is a front view showing the RC beam structure shown in FIG. 1 and the schematic configuration of the column-beam frame. FIG. 3 is a cross-sectional view taken along the line AA of the beam end position of the RC beam structure shown in FIG. FIG. 4 is a front view of the RC beam structure shown in FIG. FIG. 5 is a cross-sectional view taken along the line BB at the beam end position of the RC beam structure shown in FIG. FIG. 6 is a plan (downward view) of the RC beam structure shown in FIG. FIG. 7 is a cross-sectional view showing the connection structure of the diagonal beam main bar of the RC beam structure shown in FIG. FIG. 8 is a construction explanatory view 1 (state in which a pillar member made of PCaRC is built) of the RC beam structure shown in FIG. 2, and is a diagram showing a state in which a pillar member made of precast concrete is built. FIG. 9 is a construction explanatory view 2 (relationship between the beam main bar and the connecting reinforcing bar to which the reinforcing bar joint jig is attached) of the RC beam structure shown in FIG. FIG. 10 is a construction explanatory view 3 (joining state of the beam main bar and the reinforcing bar joint jig) of the RC beam structure shown in FIG.
As shown in FIG. 1, the building 1 includes a foundation portion (not shown) constructed in the ground and a superstructure 2 constructed on the foundation portion.
The superstructure 2 has a plurality of floors in the vertical direction. The superstructure 2 includes a plurality of columns 3 and a beam 4 erected between columns 3 adjacent to each other.

建物１の外周部には、以下に示すような柱梁架構２０が設けられている。
図１、図２に示されるように、柱梁架構２０は、プレキャストコンクリート造の柱部材（柱）３０と、ＲＣ（鉄筋コンクリート）造のＲＣ梁（ＲＣ梁構造、梁）４０と、を備えている。
柱部材３０は、上下方向に延びている。柱部材３０は、上下方向に延びる軸方向に直交する平断面形状が、建物１の外周面に沿った水平方向を長辺とした長方形状である。図２に示されるように、柱部材３０は、上下方向に延びる柱主筋３１と、図示しないせん断補強筋と、プレキャストコンクリート部３３と、を有している。 A pillar-beam frame 20 as shown below is provided on the outer peripheral portion of the building 1.
As shown in FIGS. 1 and 2, the column-beam structure 20 includes a precast concrete column member (column) 30 and an RC (reinforced concrete) RC beam (RC beam structure, beam) 40. There is.
The pillar member 30 extends in the vertical direction. The pillar member 30 has a rectangular cross-sectional shape orthogonal to the axial direction extending in the vertical direction and has a long side in the horizontal direction along the outer peripheral surface of the building 1. As shown in FIG. 2, the column member 30 has a column main bar 31 extending in the vertical direction, a shear reinforcing bar (not shown), and a precast concrete portion 33.

ＲＣ梁４０は、建物１の外周面に沿った水平方向において互いに隣り合う柱部材３０相互間で、水平方向に延びて設けられている。ＲＣ梁４０は、水平方向に延びる軸方向に直交する鉛直断面形状が、建物１の外周面に沿った鉛直方向を長辺とした縦長の長方形状とされている。
図３に示されるように、ＲＣ梁４０は、その建物内部側側面４０ｆが、柱部材３０の建物内部側側面３０ｆと面一となり、これにより壁面５が形成されるように設けられている。図３においては、紙面右側が建物内部側Ｉであり、紙面左側が建物外部側Ｏである。
図３、図４に示されるように、ＲＣ梁４０は、水平梁主筋４１と、斜め梁主筋（梁主筋）４２と、梁せん断補強筋４３と、コンクリート部４４と、を備えている。
水平梁主筋４１は、ＲＣ梁４０の上部と下部とにそれぞれ配置されている。本実施形態において、水平梁主筋４１は、ＲＣ梁４０の上部と下部のそれぞれにおいて、建物１の壁面５に直交する水平方向（ＲＣ梁４０の幅方向）に間隔をあけて、例えば４本ずつが設けられている。水平梁主筋４１は、柱部材３０に埋設され、その端部４１ａが柱部材３０から側方に突出している。ＲＣ梁４０の一方の端部４０ａ側の水平梁主筋４１の端部４１ａと、ＲＣ梁４０の他方の端部４０ｂ側の水平梁主筋４１の端部４１ａとは、機械式継手４９によって接続されている。
また、ＲＣ梁４０の長さ方向における端部に、柱部材３０内に埋設されて設けられている梁せん断補強筋４３ａには、図４に示すように、他の部分に設けられる梁せん断補強筋４３より１サイズアップの太径鉄筋が使用されている。これに替えて、他の部分に設けられる梁せん断補強筋４３を２本隣接して巻き立ててもよい。 The RC beam 40 is provided so as to extend in the horizontal direction between the pillar members 30 adjacent to each other in the horizontal direction along the outer peripheral surface of the building 1. The RC beam 40 has a vertically long rectangular shape whose long side is the vertical direction along the outer peripheral surface of the building 1 and whose vertical cross-sectional shape is orthogonal to the axial direction extending in the horizontal direction.
As shown in FIG. 3, the RC beam 40 is provided so that the side surface 40f on the inner side of the building is flush with the side surface 30f on the inner side of the building of the pillar member 30 so that the wall surface 5 is formed. In FIG. 3, the right side of the paper is the building inner side I, and the left side of the paper is the building outer side O.
As shown in FIGS. 3 and 4, the RC beam 40 includes a horizontal beam main bar 41, an oblique beam main bar (beam main bar) 42, a beam shear reinforcing bar 43, and a concrete portion 44.
The horizontal beam main bar 41 is arranged at the upper part and the lower part of the RC beam 40, respectively. In the present embodiment, the horizontal beam main bars 41 are spaced apart from each other in the horizontal direction (width direction of the RC beam 40) orthogonal to the wall surface 5 of the building 1 at the upper part and the lower part of the RC beam 40, for example, four by four. Is provided. The horizontal beam main bar 41 is embedded in the column member 30, and its end portion 41a projects laterally from the column member 30. The end 41a of the horizontal beam main bar 41 on the one end 40a side of the RC beam 40 and the end 41a of the horizontal beam main bar 41 on the other end 40b side of the RC beam 40 are connected by a mechanical joint 49. ing.
Further, as shown in FIG. 4, the beam shear reinforcing bar 43a embedded in the column member 30 at the end of the RC beam 40 in the length direction is provided with beam shear reinforcement in other portions. A large-diameter reinforcing bar that is one size larger than the reinforcing bar 43 is used. Instead of this, two beam shear reinforcing bars 43 provided in other portions may be wound adjacent to each other.

斜め梁主筋４２は、図３、４に示されるようにＲＣ梁４０の上部に設けられた水平梁主筋４１と、ＲＣ梁４０の下部に設けられた水平梁主筋４１との間に設けられている。斜め梁主筋４２は、互いに隣り合う柱部材３０相互間で、斜めに延びて設けられている。詳しくは、斜め梁主筋４２は、ＲＣ梁４０の一方の端部４０ａ側から、他方の端部側に向かって斜め上方又は斜め下方に向かって延びている。図３、図５、図６に示されるように、本実施形態において、斜め梁主筋４２は、ＲＣ梁４０の幅方向に間隔をあけて、例えば計４本が設けられている。図３～図５に示されるように、ＲＣ梁４０の幅方向において互いに隣り合う斜め梁主筋４２は、斜行方向が互いに異なっている。すなわち、ＲＣ梁４０の幅方向において互いに隣り合う斜め梁主筋４２同士で、一方の斜め梁主筋４２Ａは、ＲＣ梁４０の一方の端部４０ａ側から他方の端部側に向かって斜め上方に向かって延びている。ＲＣ梁４０の幅方向において互いに隣り合う斜め梁主筋４２同士で、他方の斜め梁主筋４２Ｂは、ＲＣ梁４０の一方の端部４０ａ側から他方の端部側に向かって斜め下方に向かって延びている。
これにより、ＲＣ梁４０を、建物１の壁面５に直交する方向（ＲＣ梁４０の幅方向）から見ると、ＲＣ梁４０の幅方向において互いに隣り合う斜め梁主筋４２は、Ｘ型状に配筋されている。 The diagonal beam main bar 42 is provided between the horizontal beam main bar 41 provided at the upper part of the RC beam 40 and the horizontal beam main bar 41 provided at the lower part of the RC beam 40 as shown in FIGS. There is. The diagonal beam main bar 42 is provided so as to extend diagonally between the column members 30 adjacent to each other. Specifically, the diagonal beam main bar 42 extends diagonally upward or diagonally downward from one end 40a side of the RC beam 40 toward the other end side. As shown in FIGS. 3, 5, and 6, in the present embodiment, for example, a total of four diagonal beam main bars 42 are provided at intervals in the width direction of the RC beam 40. As shown in FIGS. 3 to 5, the diagonal beam main bars 42 adjacent to each other in the width direction of the RC beam 40 are different from each other in the diagonal direction. That is, between the diagonal beam main bars 42 adjacent to each other in the width direction of the RC beam 40, one diagonal beam main bar 42A faces diagonally upward from one end 40a side of the RC beam 40 toward the other end side. It extends. The diagonal beam main bars 42 adjacent to each other in the width direction of the RC beam 40, and the other diagonal beam main bar 42B extends diagonally downward from one end 40a side of the RC beam 40 toward the other end side. ing.
As a result, when the RC beam 40 is viewed from the direction orthogonal to the wall surface 5 of the building 1 (the width direction of the RC beam 40), the diagonal beam main bars 42 adjacent to each other in the width direction of the RC beam 40 are arranged in an X shape. It is streaked.

図４、図７に示されるように、斜め梁主筋４２Ａは、第１鉄筋４５Ａと、第２鉄筋４６Ａと、接続鉄筋４７Ａと、を備えている。第１鉄筋４５Ａは、ＲＣ梁４０の一方の端部４０ａ側に設けられている。第１鉄筋４５Ａは、ＲＣ梁４０の一方の端部４０ａ側に位置する柱部材３０に埋設され、その端部４５ｓが、柱部材３０の側面から側方に突出している。第１鉄筋４５Ａの端部４５ｓは、ＲＣ梁４０の他方の端部４０ｂ側に向かって斜め上方に向かって延びている。
第２鉄筋４６Ａは、ＲＣ梁４０の他方の端部４０ｂ側に設けられている。第２鉄筋４６Ａは、ＲＣ梁４０の他方の端部４０ｂ側に位置する柱部材３０に埋設され、その端部４６ｓが、柱部材３０の側面から側方に突出している。第２鉄筋４６Ａの端部４６ｓは、ＲＣ梁４０の一方の端部４０ａ側に向かって斜め下方に向かって延びている。
接続鉄筋４７Ａは、第１鉄筋４５Ａの端部４５ｓと、第２鉄筋４６Ａの端部４６ｓとの間に、斜めに延びて設けられている。 As shown in FIGS. 4 and 7, the diagonal beam main bar 42A includes a first reinforcing bar 45A, a second reinforcing bar 46A, and a connecting reinforcing bar 47A. The first reinforcing bar 45A is provided on one end 40a side of the RC beam 40. The first reinforcing bar 45A is embedded in a column member 30 located on one end 40a side of the RC beam 40, and the end 45s projects laterally from the side surface of the column member 30. The end portion 45s of the first reinforcing bar 45A extends diagonally upward toward the other end portion 40b side of the RC beam 40.
The second reinforcing bar 46A is provided on the other end 40b side of the RC beam 40. The second reinforcing bar 46A is embedded in a column member 30 located on the other end portion 40b side of the RC beam 40, and the end portion 46s projects laterally from the side surface of the column member 30. The end portion 46s of the second reinforcing bar 46A extends diagonally downward toward one end portion 40a side of the RC beam 40.
The connecting reinforcing bar 47A is provided so as to extend diagonally between the end portion 45s of the first reinforcing bar 45A and the end portion 46s of the second reinforcing bar 46A.

図４に示されるように、斜め梁主筋４２Ｂは、第１鉄筋４５Ｂと、第２鉄筋４６Ｂと、接続鉄筋４７Ｂと、を備えている。第１鉄筋４５Ｂは、ＲＣ梁４０の一方の端部４０ａ側に設けられている。第１鉄筋４５Ｂは、ＲＣ梁４０の一方の端部４０ａ側に位置する柱部材３０に埋設され、その端部４５ｔが、柱部材３０の側面から側方に突出している。第１鉄筋４５Ｂの端部４５ｔは、ＲＣ梁４０の他方の端部４０ｂ側に向かって斜め下方に向かって延びている。
第２鉄筋４６Ｂは、ＲＣ梁４０の他方の端部４０ｂ側に設けられている。第２鉄筋４６Ｂは、ＲＣ梁４０の他方の端部４０ｂ側に位置する柱部材３０に埋設され、その端部４６ｔが、柱部材３０の側面から側方に突出している。第２鉄筋４６Ｂの端部４６ｔは、ＲＣ梁４０の一方の端部４０ａ側に向かって斜め上方に向かって延びている。
接続鉄筋４７Ｂは、第１鉄筋４５Ｂの端部４５ｔと、第２鉄筋４６Ｂの端部４６ｔとの間に、斜めに延びて設けられている。 As shown in FIG. 4, the diagonal beam main bar 42B includes a first reinforcing bar 45B, a second reinforcing bar 46B, and a connecting reinforcing bar 47B. The first reinforcing bar 45B is provided on one end 40a side of the RC beam 40. The first reinforcing bar 45B is embedded in a column member 30 located on one end 40a side of the RC beam 40, and the end 45t thereof projects laterally from the side surface of the column member 30. The end portion 45t of the first reinforcing bar 45B extends diagonally downward toward the other end portion 40b side of the RC beam 40.
The second reinforcing bar 46B is provided on the other end portion 40b side of the RC beam 40. The second reinforcing bar 46B is embedded in a column member 30 located on the other end 40b side of the RC beam 40, and the end portion 46t projects laterally from the side surface of the column member 30. The end portion 46t of the second reinforcing bar 46B extends diagonally upward toward one end portion 40a side of the RC beam 40.
The connecting reinforcing bar 47B is provided so as to extend diagonally between the end portion 45t of the first reinforcing bar 45B and the end portion 46t of the second reinforcing bar 46B.

図７に示されるように、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂ、及び第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂは、それぞれ鉄筋継手治具５０で連結されている。なお、斜め梁主筋４２Ａと斜め梁主筋４２Ｂは、その斜行方向が異なるのみで、鉄筋継手治具５０による連結構造は同様であるので、以下においては、図７に示した斜め梁主筋４２Ａを参照しつつ、その説明を行う。
第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂとは、鉄筋継手治具５０として、モルタル充填式継手治具５１により連結されている。図７に示されるように、モルタル充填式継手治具５１（例えば、東京鉄鋼株式会社製の商品名：モルタル充填式継手ボルトップス）は、筒状の治具本体５３と、治具本体５３内に充填されるモルタル５４と、を備えている。第１鉄筋４５Ａ，４５Ｂの端部４５ｓ，４５ｔと、接続鉄筋４７Ａ，４７Ｂの端部４７ｓ，４７ｔとは、治具本体５３内に挿入される。第１鉄筋４５Ａ，４５Ｂの端部４５ｓ，４５ｔと、接続鉄筋４７Ａ，４７Ｂの端部４７ｓ，４７ｔとは、治具本体５３内で、互いに所定の間隔をあけて互いに対向する。治具本体５３は、第１鉄筋４５Ａ，４５Ｂ、接続鉄筋４７Ａ，４７Ｂの外径よりも大きな内径を有し、第１鉄筋４５Ａ，４５Ｂ、接続鉄筋４７Ａ，４７Ｂの延伸方向にスライド移動可能とされている。治具本体５３には、固定ボルト５３ｂ、５３ｃが設けられている。固定ボルト５３ｂ、５３ｃは、治具本体５３の径方向に進退可能に設けられている。固定ボルト５３ｂ、５３ｃは、その先端部を治具本体５３内に挿入された第１鉄筋４５Ａ，４５Ｂ、接続鉄筋４７Ａ，４７Ｂに突き当てることで、治具本体５３が第１鉄筋４５Ａ，４５Ｂ、接続鉄筋４７Ａ，４７Ｂの延伸方向に移動しないように固定する。モルタル５４は、治具本体５３に形成された注入口５３ｈから治具本体５３内に充填され、治具本体５３の内周面と、第１鉄筋４５Ａ，４５Ｂの端部４５ｓ，４５ｔと、接続鉄筋４７Ａ，４７Ｂの端部４７ｓ，４７ｔとの隙間を塞ぐ。このモルタル５４が硬化することで、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂとがモルタル充填式継手治具５１によって接合される。 As shown in FIG. 7, the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B, and the second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B are connected by the reinforcing bar joint jig 50, respectively. The diagonal beam main bar 42A and the diagonal beam main bar 42B differ only in the diagonal direction, and the connecting structure by the reinforcing bar joint jig 50 is the same. Therefore, in the following, the diagonal beam main bar 42A shown in FIG. 7 is used. The explanation will be given with reference to it.
The first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B are connected as a reinforcing bar joint jig 50 by a mortar filling type joint jig 51. As shown in FIG. 7, the mortar-filled joint jig 51 (for example, a trade name manufactured by Tokyo Steel Co., Ltd .: mortar-filled joint boltops) has a tubular jig main body 53 and a inside of the jig main body 53. The mortar 54 to be filled in is provided. The ends 45s and 45t of the first reinforcing bars 45A and 45B and the ends 47s and 47t of the connecting reinforcing bars 47A and 47B are inserted into the jig main body 53. The ends 45s and 45t of the first reinforcing bars 45A and 45B and the ends 47s and 47t of the connecting reinforcing bars 47A and 47B face each other at a predetermined distance in the jig main body 53. The jig main body 53 has an inner diameter larger than the outer diameter of the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B, and can be slidably moved in the stretching direction of the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B. ing. The jig main body 53 is provided with fixing bolts 53b and 53c. The fixing bolts 53b and 53c are provided so as to be able to advance and retreat in the radial direction of the jig main body 53. The fixing bolts 53b and 53c have their tips abutting against the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B inserted in the jig main body 53, so that the jig main body 53 has the first reinforcing bars 45A and 45B. Fix the connecting reinforcing bars 47A and 47B so as not to move in the stretching direction. The mortar 54 is filled in the jig body 53 from the injection port 53h formed in the jig body 53, and is connected to the inner peripheral surface of the jig body 53 and the ends 45s, 45t of the first reinforcing bars 45A, 45B. The gap between the ends 47s and 47t of the reinforcing bars 47A and 47B is closed. When the mortar 54 is hardened, the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B are joined by the mortar filling type joint jig 51.

第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂとは、鉄筋継手治具５０として、ネジ節鉄筋用の嵌合継手治具５２（例えば、東京鉄鋼株式会社製の商品名：ネジ節鉄筋継手フリージョイント）により連結されている。ネジ節鉄筋用の嵌合継手治具５２は、筒状の治具本体５６を有している。治具本体５６の内周面には、第２鉄筋４６Ａ，４６Ｂ、接続鉄筋４７Ａ，４７Ｂの外周面に形成されたネジ節（図示無し）に螺合するネジ溝（図示無し）が形成されている。第２鉄筋４６Ａ，４６Ｂの端部４６ｓ，４６ｔに形成されたネジ節（図示無し）と、接続鉄筋４７Ａ，４７Ｂの端部４７ｕ、４７ｖに形成されたネジ節（図示無し）は、それぞれ、治具本体５６のネジ溝（図示無し）にねじ込まれる。さらに、第２鉄筋４６Ａ，４６Ｂの端部４６ｓ，４６ｔと、接続鉄筋４７Ａ，４７Ｂの端部４７ｕ、４７ｖとは、治具本体５６内で、互いに所定の隙間をあけて互いに対向する。治具本体５６内には、第２鉄筋４６Ａ，４６Ｂの端部４６ｓ，４６ｔと、接続鉄筋４７Ａ，４７Ｂの端部４７ｕ、４７ｖとの間にエポキシ樹脂等の充填材５７が充填される。これにより、第２鉄筋４６Ａ，４６Ｂの端部４６ｓ，４６ｔと、接続鉄筋４７Ａ，４７Ｂの端部４７ｕ、４７ｖとが、ネジ節鉄筋用の嵌合継手治具５２によって接合される。 The second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B are fitting joint jigs 52 for threaded reinforcing bars (for example, trade name made by Tokyo Steel Co., Ltd .: threaded reinforcing bar joint free) as the reinforcing bar joint jig 50. It is connected by a joint). The fitting joint jig 52 for the threaded reinforcing bar has a cylindrical jig body 56. On the inner peripheral surface of the jig body 56, a screw groove (not shown) is formed to be screwed into a screw node (not shown) formed on the outer peripheral surfaces of the second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B. There is. The screw joints (not shown) formed at the ends 46s and 46t of the second reinforcing bars 46A and 46B and the screw joints (not shown) formed at the ends 47u and 47v of the connecting reinforcing bars 47A and 47B are cured, respectively. It is screwed into the screw groove (not shown) of the tool body 56. Further, the end portions 46s, 46t of the second reinforcing bars 46A, 46B and the end portions 47u, 47v of the connecting reinforcing bars 47A, 47B face each other with a predetermined gap in the jig main body 56. The jig body 56 is filled with a filler 57 such as epoxy resin between the ends 46s and 46t of the second reinforcing bars 46A and 46B and the ends 47u and 47v of the connecting reinforcing bars 47A and 47B. As a result, the end portions 46s, 46t of the second reinforcing bars 46A, 46B and the end portions 47u, 47v of the connecting reinforcing bars 47A, 47B are joined by the fitting joint jig 52 for the thread joint reinforcing bar.

図４に示されるように、梁せん断補強筋４３は、上記したような水平梁主筋４１および斜め梁主筋４２を取り囲むように、ＲＣ梁４０の中心軸回りに巻き回されている。
コンクリート部４４は、上記水平梁主筋４１、斜め梁主筋４２、モルタル充填式継手治具５１、ネジ節鉄筋用の嵌合継手治具５２、梁せん断補強筋４３を埋設するように、現場打ちで打設されたコンクリートによって形成されている。 As shown in FIG. 4, the beam shear reinforcing bar 43 is wound around the central axis of the RC beam 40 so as to surround the horizontal beam main bar 41 and the diagonal beam main bar 42 as described above.
The concrete portion 44 is cast in the field so as to embed the horizontal beam main bar 41, the diagonal beam main bar 42, the mortar filling type joint jig 51, the fitting joint jig 52 for the threaded joint reinforcing bar, and the beam shear reinforcing bar 43. It is formed by cast concrete.

（ＲＣ梁の施工方法）
次に、上記したようなＲＣ梁４０の施工方法について説明する。
まず、図８に示されるように、プレキャストコンクリート造の柱部材３０を所定の位置に建て込む。なお、柱部材３０には、予め、上下の水平梁主筋４１、第１鉄筋４５Ａ，４５Ｂ、第２鉄筋４６Ａ，４６Ｂが埋設されている。上下の水平梁主筋４１同士を連結する機械式継手４９は、互いに対向する水平梁主筋４１のうちの一方に寄せて設けておく。
柱部材３０を所定の位置に建て込むと、建物１の壁面５に沿った水平方向において互いに隣り合う柱部材３０相互間で、ＲＣ梁４０の一方の端部４０ａ側に位置する第１鉄筋４５Ａ，４５Ｂの端部４５ｓ，４５ｔと、ＲＣ梁４０の他方の端部４０ｂ側に位置する第２鉄筋４６Ａ，４６Ｂの端部４６ｓ，４６ｔとが、斜め方向に間隔をあけた状態で互いに向き合う。 (RC beam construction method)
Next, the construction method of the RC beam 40 as described above will be described.
First, as shown in FIG. 8, the precast concrete pillar member 30 is built in a predetermined position. The upper and lower horizontal beam main bars 41, the first reinforcing bars 45A and 45B, and the second reinforcing bars 46A and 46B are embedded in the column member 30 in advance. The mechanical joint 49 for connecting the upper and lower horizontal beam main bars 41 to each other is provided close to one of the horizontal beam main bars 41 facing each other.
When the column member 30 is built in a predetermined position, the first reinforcing bar 45A located on one end 40a side of the RC beam 40 between the column members 30 adjacent to each other in the horizontal direction along the wall surface 5 of the building 1. , 45B end portions 45s, 45t and the end portions 46s, 46t of the second reinforcing bars 46A, 46B located on the other end portion 40b side of the RC beam 40 face each other in a diagonally spaced state.

次いで、図９に示されるように、機械式継手４９により、水平梁主筋４１同士を連結する。続いて、上下の第１鉄筋４５Ａ，４５Ｂの端部４５ｓ，４５ｔと、第２鉄筋４６Ａ，４６Ｂの端部４６ｓ，４６ｔとの間に、接続鉄筋４７Ａ，４７Ｂを挿入する。このとき、接続鉄筋４７Ａ，４７Ｂの端部４７ｓ，４７ｔには、モルタル充填式継手治具５１の治具本体５３を装着し、端部４７ｕ，４７ｖには、ネジ節鉄筋用の嵌合継手治具５２の治具本体５６を装着しておく。
接続鉄筋４７Ａ，４７Ｂを第１鉄筋４５Ａ，４５Ｂの端部４５ｓ，４５ｔと第２鉄筋４６Ａ，４６Ｂの端部４６ｓ，４６ｔとの間に挿入したら、図１０に示されるように、ネジ節鉄筋用の嵌合継手治具５２の治具本体５６を回転させ、治具本体５６に第２鉄筋４６Ａ，４６Ｂの端部４６ｓ，４６ｔをねじ込む。また、モルタル充填式継手治具５１の治具本体５３を第１鉄筋４５Ａ，４５Ｂ側にスライドさせ、治具本体５３の内側に第１鉄筋４５Ａ，４５Ｂの端部４５ｓ，４５ｔを挿入させる。
この後、ネジ節鉄筋用の嵌合継手治具５２の治具本体５６内にエポキシ樹脂等の充填材５７を充填し、モルタル充填式継手治具５１の治具本体５３内には、モルタル５４を充填する。充填材５７及びモルタル５４が硬化したら、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂ、及び第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂが連結される。 Next, as shown in FIG. 9, the horizontal beam main bars 41 are connected to each other by the mechanical joint 49. Subsequently, the connecting reinforcing bars 47A and 47B are inserted between the upper and lower ends 45s and 45t of the first reinforcing bars 45A and 45B and the ends 46s and 46t of the second reinforcing bars 46A and 46B. At this time, the jig main body 53 of the mortar filling type joint jig 51 is attached to the ends 47s and 47t of the connecting reinforcing bars 47A and 47B, and the fitting joints for the screw joint reinforcing bars are attached to the ends 47u and 47v. The jig body 56 of the tool 52 is attached.
After inserting the connecting reinforcing bars 47A and 47B between the ends 45s and 45t of the first reinforcing bars 45A and 45B and the ends 46s and 46t of the second reinforcing bars 46A and 46B, as shown in FIG. The jig body 56 of the fitting joint jig 52 is rotated, and the ends 46s, 46t of the second reinforcing bars 46A, 46B are screwed into the jig body 56. Further, the jig body 53 of the mortar filling type joint jig 51 is slid toward the first reinforcing bars 45A and 45B, and the ends 45s and 45t of the first reinforcing bars 45A and 45B are inserted inside the jig body 53.
After that, a filler 57 such as epoxy resin is filled in the jig body 56 of the fitting joint jig 52 for the threaded reinforcing bar, and the mortar 54 is filled in the jig body 53 of the mortar filling type joint jig 51. Fill. After the filler 57 and the mortar 54 are hardened, the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B, and the second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B are connected.

この後、水平梁主筋４１の周囲に梁せん断補強筋４３を配筋する。さらに、ＲＣ梁４０のコンクリート部４４を形成するため、図示しない型枠を組み、型枠内にコンクリートを打設する。打設したコンクリートを所定期間養生し、所定の強度が発現することによって、コンクリート部４４が形成される。しかる後、型枠を解体撤去することで、ＲＣ梁４０が形成される。 After that, the beam shear reinforcing bar 43 is arranged around the horizontal beam main bar 41. Further, in order to form the concrete portion 44 of the RC beam 40, a formwork (not shown) is assembled and concrete is placed in the formwork. The concrete portion 44 is formed by curing the cast concrete for a predetermined period and developing a predetermined strength. After that, the RC beam 40 is formed by dismantling and removing the formwork.

（ＲＣ梁構造、及び柱梁架構の作用効果）
以下に、上記に述べたＲＣ梁構造、及び柱梁架構の効果を説明する。
ＲＣ梁４０によれば、ＲＣ梁４０は、柱部材３０相互間に斜め梁主筋４２がＸ型状に配筋されたＲＣ梁４０であって、Ｘ型状に配筋された斜め梁主筋４２Ａ，４２Ｂは、ＲＣ梁４０の一方の端部４０ａ側の第１鉄筋４５Ａ，４５Ｂと、他方の端部４０ｂ側の第２鉄筋４６Ａ，４６Ｂと、これらの間に斜めに設けられた接続鉄筋４７Ａ，４７Ｂと、を備え、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂ、及び第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂは、それぞれ鉄筋継手治具５０で連結されている。
このような構成によれば、鉄筋継手治具５０を用いて第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂ、及び第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂを連結するときには、鉄筋継手治具５０に一方の接続鉄筋４７Ａ，４７Ｂを挿入しておく。その後、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂ、及び第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂをそれぞれ対向させた状態で、鉄筋継手治具５０を他方の第１鉄筋４５Ａ，４５Ｂ、第２鉄筋４６Ａ，４６Ｂ側に移動させ、鉄筋継手治具５０の内側に他方の第１鉄筋４５Ａ，４５Ｂ、第２鉄筋４６Ａ，４６Ｂを挿入する。これにより、鉄筋継手治具５０に、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂ、及び第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂが挿入される。このような鉄筋継手治具５０を用い、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂ、第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂを、それぞれ連結することができる。これにより、斜め梁主筋４２を構成する第１鉄筋４５Ａ，４５Ｂ、接続鉄筋４７Ａ，４７Ｂ、第２鉄筋４６Ａ，４６Ｂの隙間が狭い場合であっても、特殊な継手金物を使用することなく、斜め梁主筋４２をＸ型状に配筋させたＲＣ梁４０が実現可能である。
したがって、容易に精度よく構築することが可能な、柱部材３０相互間に斜め梁主筋４２がＸ型状に配筋されたＲＣ梁４０が提供可能となる。 (Action and effect of RC beam structure and column beam frame)
The effects of the RC beam structure and the column-beam frame described above will be described below.
According to the RC beam 40, the RC beam 40 is an RC beam 40 in which diagonal beam main bars 42 are arranged in an X shape between the column members 30, and the diagonal beam main bars 42A arranged in an X shape. , 42B are the first reinforcing bars 45A and 45B on the one end 40a side of the RC beam 40, the second reinforcing bars 46A and 46B on the other end 40b side, and the connecting reinforcing bars 47A diagonally provided between them. , 47B, and the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B, and the second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B are connected by a reinforcing bar joint jig 50, respectively.
According to such a configuration, when connecting the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B, and the second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B by using the reinforcing bar joint jig 50, the reinforcing bar joint is repaired. One of the connecting reinforcing bars 47A and 47B is inserted into the tool 50. After that, with the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B, and the second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B facing each other, the reinforcing bar joint jig 50 is used as the other first reinforcing bar 45A and 45B. , The second reinforcing bars 46A and 46B are moved, and the other first reinforcing bars 45A and 45B and the second reinforcing bars 46A and 46B are inserted inside the reinforcing bar joint jig 50. As a result, the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B, and the second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B are inserted into the reinforcing bar joint jig 50. Using such a reinforcing bar joint jig 50, the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B, and the second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B can be connected, respectively. As a result, even when the gaps between the first reinforcing bars 45A and 45B, the connecting reinforcing bars 47A and 47B, and the second reinforcing bars 46A and 46B constituting the diagonal beam main reinforcing bar 42 are narrow, the diagonal joint hardware is not used. It is possible to realize an RC beam 40 in which the beam main bars 42 are arranged in an X shape.
Therefore, it is possible to provide an RC beam 40 in which diagonal beam main bars 42 are arranged in an X shape between the column members 30 which can be easily and accurately constructed.

また、上記のような構成によれば、斜め梁主筋４２が、施工前においては第１鉄筋４５Ａ，４５Ｂ、第２鉄筋４６Ａ，４６Ｂ、及び接続鉄筋４７Ａ，４７Ｂの３つに分割される。このため、例えば斜め梁主筋を第１鉄筋と第２鉄筋の２つに分割しこれらを鉄筋継手治具で連結する場合に比べると、柱部材３０からの第１鉄筋４５Ａ，４５Ｂと第２鉄筋４６Ａ，４６Ｂの突出長を短くすることができる。したがって、柱部材３０を例えば工場などで作成した場合等においては、施工現場への運搬が容易である。 Further, according to the above configuration, the diagonal beam main bar 42 is divided into three, first reinforcing bars 45A and 45B, second reinforcing bars 46A and 46B, and connecting reinforcing bars 47A and 47B before construction. Therefore, for example, as compared with the case where the diagonal beam main bar is divided into two, a first reinforcing bar and a second reinforcing bar, and these are connected by a reinforcing bar joint jig, the first reinforcing bars 45A and 45B and the second reinforcing bar from the column member 30 are compared. The protrusion lengths of 46A and 46B can be shortened. Therefore, when the pillar member 30 is manufactured, for example, in a factory, it can be easily transported to the construction site.

また、鉄筋継手治具５０の少なくとも一方は、モルタル充填式継手治具５１である。より詳細には、本実施形態においては、鉄筋継手治具５０の一方は、モルタル充填式継手治具５１であり、他方はネジ節鉄筋用の嵌合継手治具５２である。
このような構成によれば、斜め梁主筋４２を構成する第１鉄筋４５Ａ，４５Ｂ、接続鉄筋４７Ａ，４７Ｂ、第２鉄筋４６Ａ，４６Ｂを、モルタル充填式継手治具５１と、他の鉄筋継手治具５０、例えばネジ節鉄筋用の嵌合継手治具５２を用いて接続することができる。施工に際しては、ネジ節鉄筋用の嵌合継手治具５２で、第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂを接続し、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂをモルタル充填式継手治具５１で接続する。モルタル充填式継手治具５１は、筒状の治具本体５３の内側に、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂを挿入した後、治具本体５３内にモルタル５４を充填する。したがって、治具本体５３の内周面と、第１鉄筋４５Ａ，４５Ｂと接続鉄筋４７Ａ，４７Ｂの外周面との間には、モルタル５４が充填される径方向の隙間が存在する。このため、ネジ節鉄筋用の嵌合継手治具５２で、第２鉄筋４６Ａ，４６Ｂと接続鉄筋４７Ａ，４７Ｂを接続した後、接続鉄筋４７Ａ，４７Ｂの端部４７ｓ，４７ｔと、第１鉄筋４５Ａ，４５Ｂの端部４５ｓ，４５ｔとの位置がずれていても、モルタル充填式継手治具５１の治具本体５３内に第１鉄筋４５Ａ，４５Ｂを容易に挿入することができる。したがって、施工を容易に行うことができる。 Further, at least one of the reinforcing bar joint jigs 50 is a mortar filling type joint jig 51. More specifically, in the present embodiment, one of the reinforcing bar joint jigs 50 is a mortar filling type joint jig 51, and the other is a fitting joint jig 52 for threaded reinforcing bars.
According to such a configuration, the first reinforcing bars 45A and 45B, the connecting reinforcing bars 47A and 47B, and the second reinforcing bars 46A and 46B constituting the diagonal beam main bar 42 are connected to the mortar filling type joint jig 51 and other reinforcing bar joints. It can be connected by using a tool 50, for example, a fitting joint jig 52 for threaded reinforcing bars. At the time of construction, the second reinforcing bars 46A and 46B are connected to the connecting reinforcing bars 47A and 47B, and the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B are connected to the mortar filling type joint by the fitting joint jig 52 for the thread joint reinforcing bar. Connect with the jig 51. The mortar-filled joint jig 51 fills the jig body 53 with the mortar 54 after inserting the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B inside the tubular jig main body 53. Therefore, there is a radial gap in which the mortar 54 is filled between the inner peripheral surface of the jig body 53 and the outer peripheral surfaces of the first reinforcing bars 45A and 45B and the connecting reinforcing bars 47A and 47B. Therefore, after connecting the second reinforcing bars 46A and 46B and the connecting reinforcing bars 47A and 47B with the fitting joint jig 52 for the thread joint reinforcing bars, the ends 47s and 47t of the connecting reinforcing bars 47A and 47B and the first reinforcing bar 45A The first reinforcing bars 45A and 45B can be easily inserted into the jig body 53 of the mortar filling type joint jig 51 even if the ends 45s and 45t of the 45B are displaced from each other. Therefore, the construction can be easily performed.

上記のように、モルタル充填式継手治具５１は筒状の治具本体５３を挟んだ両側の鉄筋を治具本体５３と嵌合させる必要がないために、鉄筋の節形状やある程度の鉄筋外径が異なる鉄筋同士であっても、接合材（例えば、モルタル、グラウト材、接着剤）を介して接合させることが可能である反面、鉄筋と筒状の治具本体５３との間においては、所定の付着面積を確保する必要があり、図４に示すようにネジ節鉄筋用の嵌合継手治具５２に比べて、モルタル充填式継手治具５１の継手部は長くなる傾向である。また、モルタル充填式継手治具５１の場合、筒状の治具本体５３と、当該筒状の治具本体５３に挿入される鉄筋との間の接合材が充填される部分において、接合材が硬化するまでの間に鉄筋の位置調整を行うことができる。例えば、異形鉄筋Ｄ３２用の、モルタル充填式継手治具５１の場合、筒状の治具本体５３と、当該筒状の治具本体５３に挿入される鉄筋との間には、外周方向に厚さ８ｍｍの接合材が充填される部分が確保される。
よって、Ｘ型状配筋の梁本体では、Ｘ型状配筋の梁主筋の中央付近にモルタル充填式継手治具５１を２箇所設置できる場合と、本実施形態のように、一方にモルタル充填式継手治具５１を設置し、他方にネジ節鉄筋用の嵌合継手治具５２を設置して、梁主筋同士を接合させる場合とがある。本実施形態のモルタル充填式継手治具５１とネジ節鉄筋用の嵌合継手治具５２を併用したＲＣ梁構造では、ネジ節鉄筋用の嵌合継手治具５２を構成する治具本体５６内にはモルタル充填は不要であり、モルタル充填作業を行う必要がなく短工期化が可能である。また、ネジ節鉄筋用の嵌合継手治具５２は、モルタル充填式継手治具５１に比べて、継手部を短くでき、Ｘ型状配筋の梁主筋に対する適用範囲は広く、使い勝手が良い。
しかしながら、Ｘ型状配筋の梁主筋を２組のネジ節鉄筋用の嵌合継手治具５２を設置して連結しようとしても、嵌合継手治具はネジ節鉄筋と嵌合させる必要があるために、ネジ節鉄筋用の嵌合継手治具５２の継手位置では梁主筋の位置調整を行うための鉄筋の移動可能量は僅かであり、ネジ節鉄筋用の嵌合継手治具５２を２組ともに使用して梁主筋同士を接合させることは困難である。
よって、梁主筋がＸ型状に配筋されたＲＣ梁構造では、梁主筋同士の間に接続鉄筋４７Ａ，４７Ｂを配置し、その接続鉄筋４７Ａ，４７Ｂの一方端部にネジ節鉄筋用の嵌合継手治具５２を配置し、他方端部にモルタル充填式継手治具５１を設けた梁主筋の継手治具５０の組み合わせが、特殊な鉄筋継手金物を使用することなく、容易に精度よく構築する梁主筋の継ぎ手手段として好ましい。
また、ＲＣ梁の梁端部には、梁端部以外の梁本体部分に設けられる梁せん断補強筋４３よりも鉄筋量を増加させた梁せん断補強筋４３ａが設けられることで、柱とＲＣ梁との接合部強度が高められるために、柱梁架構において、高い構造安全性を確保することができる。 As described above, in the mortar filling type joint jig 51, since it is not necessary to fit the reinforcing bars on both sides of the tubular jig main body 53 with the jig main body 53, the shape of the reinforcing bars and the outside of the reinforcing bars to some extent Even if the reinforcing bars have different diameters, they can be joined via a joining material (for example, mortar, grout material, adhesive), but on the other hand, between the reinforcing bar and the tubular jig body 53, It is necessary to secure a predetermined adhesion area, and as shown in FIG. 4, the joint portion of the mortar filling type joint jig 51 tends to be longer than that of the fitting joint jig 52 for threaded reinforcing bars. Further, in the case of the mortar filling type joint jig 51, the joining material is formed in a portion where the joining material between the tubular jig main body 53 and the reinforcing bar inserted into the tubular jig main body 53 is filled. The position of the reinforcing bar can be adjusted until it hardens. For example, in the case of the mortar filling type joint jig 51 for the deformed reinforcing bar D32, the thickness between the cylindrical jig main body 53 and the reinforcing bar inserted into the tubular jig main body 53 is thick in the outer peripheral direction. A portion filled with the 8 mm joint material is secured.
Therefore, in the beam body of the X-shaped reinforcing bar, there are cases where two mortar filling type joint jigs 51 can be installed near the center of the beam main bar of the X-shaped reinforcing bar, and one of them is filled with mortar as in the present embodiment. In some cases, a type joint jig 51 is installed, and a fitting joint jig 52 for threaded reinforcing bars is installed on the other side to join the beam main bars to each other. In the RC beam structure in which the mortar filling type joint jig 51 of the present embodiment and the fitting joint jig 52 for the threaded reinforcing bar are used in combination, the inside of the jig main body 56 constituting the fitting joint jig 52 for the threaded reinforcing bar No mortar filling is required, and there is no need to perform mortar filling work, and the construction period can be shortened. Further, the fitting joint jig 52 for the threaded reinforcing bar can have a shorter joint portion than the mortar filling type joint jig 51, has a wide range of application to the beam main bar of the X-shaped reinforcing bar, and is easy to use.
However, even if an attempt is made to connect the beam main bars of the X-shaped reinforcing bar by installing two sets of fitting joint jigs 52 for the threaded reinforcing bars, the fitting joint jig needs to be fitted with the threaded joint reinforcing bars. Therefore, at the joint position of the fitting joint jig 52 for the threaded rebar, the movable amount of the reinforcing bar for adjusting the position of the beam main bar is small, and the fitting joint jig 52 for the threaded reinforcing bar 2 is used. It is difficult to join the beam main bars together by using them together.
Therefore, in the RC beam structure in which the beam main bars are arranged in an X shape, the connecting reinforcing bars 47A and 47B are arranged between the beam main bars, and the connecting reinforcing bars 47A and 47B are fitted to one end of the connecting reinforcing bars for screw joint reinforcing bars. The combination of the joint jig 50 of the beam main bar with the joint joint jig 52 arranged and the mortar filling type joint jig 51 provided at the other end can be easily and accurately constructed without using special reinforcing bar joint hardware. It is preferable as a means for joining the main reinforcing bar of the beam.
Further, the beam end portion of the RC beam is provided with a beam shear reinforcing bar 43a having a larger amount of reinforcing bars than the beam shear reinforcing bar 43 provided in the beam main body portion other than the beam end portion, whereby the column and the RC beam are provided. Since the strength of the joint with the beam is increased, high structural safety can be ensured in the beam-beam structure.

また、上述したような柱梁架構２０は、建物１の外周部の柱梁架構２０であって、上記したようなＲＣ梁４０と、ＲＣ梁４０の両側に設けられたプレキャストコンクリート造の柱部材３０と、を備え、ＲＣ梁４０の建物内部側側面４０ｆは、柱部材３０の建物内部側側面３０ｆと面一とされて、壁面５が形成されている。
このような構成によれば、ＲＣ梁４０の建物内部側側面４０ｆと柱部材３０の建物内部側側面３０ｆとによって、面一の壁面５を構築可能である。建物１の室内側Ｉに柱型や梁型が突出しない。したがって、柱型や梁型が建物１の室内側に突出しない利用勝手のよい建物室内を有する柱梁架構２０を実現出来る。 Further, the column-beam structure 20 as described above is a column-beam structure 20 on the outer periphery of the building 1, and the RC beam 40 as described above and the precast concrete column members provided on both sides of the RC beam 40. The wall surface 5 is formed so that the side surface 40f on the inner side of the building of the RC beam 40 is flush with the side surface 30f on the inner side of the building of the pillar member 30.
According to such a configuration, the flush wall surface 5 can be constructed by the building internal side side surface 40f of the RC beam 40 and the building internal side side surface 30f of the pillar member 30. The pillar type and the beam type do not protrude on the indoor side I of the building 1. Therefore, it is possible to realize a pillar-beam frame 20 having a convenient building interior in which the pillar-shaped or beam-shaped does not protrude to the indoor side of the building 1.

（変形例）
なお、本発明のＲＣ梁構造、柱梁架構は、図面を参照して説明した上述の実施形態に限定されるものではなく、その技術的範囲において様々な変形例が考えられる。
例えば、変形例１では、図１１に示されるように、接続鉄筋４７Ａ’，４７Ｂ’は、第１鉄筋４５Ａ，４５Ｂ、第２鉄筋４６Ａ，４６Ｂよりも外径より細径とする。これにより、モルタル充填式継手治具５１の治具本体５３、ネジ節鉄筋用の嵌合継手治具５２の治具本体５６に、第１鉄筋４５Ａ，４５Ｂ、第２鉄筋４６Ａ，４６Ｂを挿入する際、治具本体５３，５６を、その径方向に、より大きく移動させることができる。したがって、治具本体５３、５６に、第１鉄筋４５Ａ，４５Ｂ、第２鉄筋４６Ａ，４６Ｂを容易に挿入して接続作業を行うことができる。また、接続鉄筋４７Ａ’，４７Ｂ’が第１鉄筋４５Ａ，４５Ｂ、及び第２鉄筋４６Ａ，４６Ｂより細径であるために、ＲＣ梁内でのコンクリートの充填性能を高めることができる。 (Modification example)
The RC beam structure and the column-beam frame of the present invention are not limited to the above-described embodiments described with reference to the drawings, and various modifications can be considered within the technical scope thereof.
For example, in the first modification, as shown in FIG. 11, the connecting reinforcing bars 47A'and 47B'have a smaller outer diameter than the first reinforcing bars 45A and 45B and the second reinforcing bars 46A and 46B. As a result, the first reinforcing bars 45A and 45B and the second reinforcing bars 46A and 46B are inserted into the jig main body 53 of the mortar filling type joint jig 51 and the jig main body 56 of the fitting joint jig 52 for threaded reinforcing bars. At this time, the jig bodies 53 and 56 can be moved more in the radial direction thereof. Therefore, the first reinforcing bars 45A and 45B and the second reinforcing bars 46A and 46B can be easily inserted into the jig main bodies 53 and 56 to perform the connection work. Further, since the connecting reinforcing bars 47A'and 47B' have smaller diameters than the first reinforcing bars 45A and 45B and the second reinforcing bars 46A and 46B, the concrete filling performance in the RC beam can be improved.

上記実施形態では、施工に際して、図９に示されるように、接続鉄筋４７Ａ，４７Ｂの両端部に、モルタル充填式継手治具５１の治具本体５３と、ネジ節鉄筋用の嵌合継手治具５２の治具本体５６とを装着しておくようにしたが、これに限らない。
例えば、変形例２では、図１２に示されるように、モルタル充填式継手治具５１の治具本体５３、及びネジ節鉄筋用の嵌合継手治具５２の治具本体５６のうち、一方のみを接続鉄筋４７Ａ，４７Ｂに装着し、他方を第２鉄筋４６Ａ，４６Ｂ（または第１鉄筋４５Ａ，４５Ｂ）に装着する。さらに、可能であれば、モルタル充填式継手治具５１の治具本体５３、及びネジ節鉄筋用の嵌合継手治具５２の治具本体５６を、第１鉄筋４５Ａ，４５Ｂと、第２鉄筋４６Ａ，４６Ｂに装着しておくようにしてもよい。これにより、予め柱部材３０に定着された梁主筋の先端部に鉄筋継手治具５０が取り付けられていることで、建設現場での接続鉄筋４７Ａ，４７Ｂと梁主筋との接続作業量を少なくできるために、工期短縮が可能である。 In the above embodiment, as shown in FIG. 9, at the time of construction, the jig main body 53 of the mortar filling type joint jig 51 and the fitting joint jig for the threaded reinforcing bar are attached to both ends of the connecting reinforcing bars 47A and 47B. The jig main body 56 of 52 is attached, but the present invention is not limited to this.
For example, in the second modification, as shown in FIG. 12, only one of the jig main body 53 of the mortar filling type joint jig 51 and the jig main body 56 of the fitting joint jig 52 for threaded reinforcing bars is used. Is attached to the connecting reinforcing bars 47A and 47B, and the other is attached to the second reinforcing bars 46A and 46B (or the first reinforcing bars 45A and 45B). Further, if possible, the jig main body 53 of the mortar filling type joint jig 51 and the jig main body 56 of the fitting joint jig 52 for the thread-knot rebar are provided with the first reinforcing bars 45A and 45B and the second reinforcing bar. It may be attached to 46A and 46B. As a result, since the reinforcing bar joint jig 50 is attached to the tip of the beam main bar previously fixed to the column member 30, the amount of connection work between the connecting reinforcing bars 47A and 47B and the beam main bar at the construction site can be reduced. Therefore, it is possible to shorten the construction period.

また、上記実施形態では、柱部材３０の建物内部側側面３０ｆとＲＣ梁４０の建物内部側側面４０ｆは、面一であるが、これに限らない。
例えば、変形例３では、図１３に示されるように、ＲＣ梁４０の建物内部側側面４０ｆは、柱部材３０の建物内部側側面３０ｆより建物内部側Ｉに設けられていてもよい。これにより、柱型が建物室内側Ｉに突出することなく、例えば後に説明する図１４（ｂ）に示されるように柱上部と接合される梁型が柱型より建物室内側Ｉに突出していることで、室内床面積を増加させることが可能であり、利用勝手のよい建物室内を有する柱梁架構を実現出来る。 Further, in the above embodiment, the building internal side side surface 30f of the pillar member 30 and the building internal side side surface 40f of the RC beam 40 are flush with each other, but the present invention is not limited to this.
For example, in the third modification, as shown in FIG. 13, the building interior side side surface 40f of the RC beam 40 may be provided on the building interior side I from the building interior side side surface 30f of the pillar member 30. As a result, the pillar type does not protrude toward the building interior side I, and the beam type joined to the upper part of the pillar protrudes from the pillar type toward the building interior side I, for example, as shown in FIG. 14 (b) described later. Therefore, it is possible to increase the floor area of the interior, and it is possible to realize a column-beam structure having a convenient building interior.

また、上記の実施形態及び各変形例において、ＲＣ梁４０を構成する梁主筋４１、４２の少なくとも１本は、図１４各図に示されるように、柱主筋３１の内側を、梁通しで配筋されていてもよい。
図１４（ａ）は、上記実施形態として例えば図３に示した、ＲＣ梁４０の建物内部側側面４０ｆと柱部材３０の建物内部側側面３０ｆとが面一の場合の柱梁架構の斜視図である。また、図１４（ｂ）は、変形例３として例えば図１３に示した、ＲＣ梁４０の建物内部側側面４０ｆが柱部材３０の建物内部側側面３０ｆより建物内部側Ｉに設けられた場合の柱梁架構の斜視図である。
いずれの場合においても、二点鎖線で示される梁主筋４１、４２の少なくとも１本は、柱主筋３１の内側、すなわち、建物内部側Ｉに設けられた柱主筋３１の建物外部側Ｏを、梁通しで配筋されている。
このような構造においては、柱部材３０とＲＣ梁構造４０が大きく偏心接合されていても、ＲＣ梁構造４０の耐力を形成する梁主筋４１、４２の少なくとも１本が柱主筋３１の内側を梁通しで貫通しているために、柱部材３０とＲＣ梁構造４０が強固に接合されることができる。
これ以外にも、本発明の主旨を逸脱しない限り、上記実施の形態で挙げた構成を取捨選択したり、他の構成に適宜変更したりすることが可能である。 Further, in the above-described embodiment and each modification, at least one of the beam main bars 41 and 42 constituting the RC beam 40 is arranged with a beam through the inside of the column main bar 31 as shown in each drawing of FIG. It may be streaked.
FIG. 14A is a perspective view of a column-beam frame in the case where the building internal side side surface 40f of the RC beam 40 and the building internal side side surface 30f of the column member 30 are flush with each other, for example, as shown in FIG. Is. Further, FIG. 14B shows a case where the building internal side surface 40f of the RC beam 40 is provided on the building internal side I from the building internal side side surface 30f of the pillar member 30, as shown in FIG. 13 as a modification 3. It is a perspective view of a column beam frame.
In any case, at least one of the beam main bars 41 and 42 indicated by the alternate long and short dash line is the inside of the column main bar 31, that is, the beam on the building outer side O of the column main bar 31 provided on the building inner side I. Reinforcement is arranged through.
In such a structure, even if the column member 30 and the RC beam structure 40 are largely eccentrically joined, at least one of the beam main bars 41 and 42 forming the bearing capacity of the RC beam structure 40 is a beam inside the column main bar 31. Since it penetrates through, the column member 30 and the RC beam structure 40 can be firmly joined.
In addition to this, as long as it does not deviate from the gist of the present invention, it is possible to select the configuration described in the above embodiment or change it to another configuration as appropriate.

１建物４１水平梁主筋
５壁面４２、４２Ａ、４２Ｂ斜め梁主筋（梁主筋）
２０柱梁架構４５Ａ、４５Ｂ第１鉄筋
３０柱部材（柱）４６Ａ、４６Ｂ第２鉄筋
３０ｆ建物内部側側面４７Ａ、４７Ａ’、４７Ｂ、４７Ｂ’ 接続鉄筋
４０ＲＣ梁（ＲＣ梁構造、梁）５０鉄筋継手治具
４０ａ一方の端部５１モルタル充填式継手治具
４０ｂ他方の端部５２ネジ節鉄筋用の嵌合継手治具
４０ｆ建物内部側側面 1 Building 41 Horizontal beam main bar 5 Wall surface 42, 42A, 42B Diagonal beam main bar (beam main bar)
20 Pillar beam frame 45A, 45B 1st reinforcing bar 30 Pillar member (pillar) 46A, 46B 2nd reinforcing bar 30f Building interior side side surface 47A, 47A', 47B, 47B'Connecting reinforcing bar 40 RC beam (RC beam structure, beam) 50 Reinforcing bar Joint jig 40a One end 51 Mortal filling type joint jig 40b The other end 52 Fitting joint jig 40f for threaded rebar 40f Inside side of the building

Claims

柱相互間に梁主筋がＸ型状に配筋されたＲＣ梁構造であって、
Ｘ型状に配筋された前記梁主筋は、梁の一方の端部側の第１鉄筋と、他方の端部側の第２鉄筋と、これらの間に斜めに設けられた接続鉄筋と、を備え、
前記第１鉄筋と前記接続鉄筋、及び前記第２鉄筋と前記接続鉄筋は、それぞれ鉄筋継手治具で連結されていることを特徴とするＲＣ梁構造。 It is an RC beam structure in which the beam main bars are arranged in an X shape between the columns.
The beam main reinforcing bars arranged in an X shape include a first reinforcing bar on one end side of the beam, a second reinforcing bar on the other end side, and a connecting reinforcing bar diagonally provided between them. Equipped with
An RC beam structure characterized in that the first reinforcing bar and the connecting reinforcing bar, and the second reinforcing bar and the connecting reinforcing bar are connected by a reinforcing bar joint jig, respectively.

前記鉄筋継手治具の少なくとも一方は、モルタル充填式継手治具であることを特徴とする請求項１に記載のＲＣ梁構造。 The RC beam structure according to claim 1, wherein at least one of the reinforcing bar joint jigs is a mortar-filled joint jig.

建物外周部の柱梁架構であって、
請求項１または請求項２に記載のＲＣ梁構造と、
前記ＲＣ梁構造の両側に設けられたプレキャストコンクリート造の柱部材と、を備え、
前記ＲＣ梁構造の建物内部側側面は、前記柱部材の建物内部側側面と面一であり、かつ前記ＲＣ梁構造を構成する梁主筋の少なくとも１本は柱主筋の内側を梁通しで配筋されていることを特徴とする柱梁架構。 It is a pillar-beam frame on the outer circumference of the building.
The RC beam structure according to claim 1 or 2,
A precast concrete column member provided on both sides of the RC beam structure is provided.
The side surface of the RC beam structure on the inner side of the building is flush with the side surface of the pillar member on the inner side of the building, and at least one of the beam main bars constituting the RC beam structure is arranged through a beam through the inside of the column main bar. A pillar-beam structure characterized by being made.

建物外周部の柱梁架構であって、
請求項１または請求項２に記載のＲＣ梁構造と、
前記ＲＣ梁構造の両側に設けられたプレキャストコンクリート造の柱部材と、を備え、
前記ＲＣ梁構造の建物内部側側面は、前記柱部材の建物内部側側面より建物内部側に設けられ、かつ前記ＲＣ梁構造を構成する梁主筋の少なくとも１本は柱主筋の内側を梁通しで配筋されていることを特徴とする柱梁架構。 It is a pillar-beam frame on the outer circumference of the building.
The RC beam structure according to claim 1 or 2,
A precast concrete column member provided on both sides of the RC beam structure is provided.
The side surface of the RC beam structure on the inner side of the building is provided on the inner side of the building from the side surface of the pillar member on the inner side of the building, and at least one of the beam main bars constituting the RC beam structure is passed through the inside of the column main bar. A column-beam structure characterized by the arrangement of reinforcement.