JP6630768B2 - Column-beam connection structure - Google Patents

Description

  The present invention relates to a column-beam connection structure.

  Frames in which the side surfaces of the beams are arranged outside the side surfaces of the columns (frames in which the beam section and the column section are partially joined, frames in which the beam side and the column side are joined, etc.) are desired from the viewpoint of design design. ing.

  In view of such a design requirement, Patent Literature 1 discloses that one side of a beam projects beyond one side of a column, and at least one of the beam main bars is arranged inside the column main bar. In addition, a frame is disclosed that includes a wall column and a beam having a flat cross section and arranged at least on the other beam main bar outside the column main bar (see Patent Document 1).

  Further, in Patent Literature 2, at a joint portion of a column and a beam, one side surface of a column projects more than one side surface of a beam, and a joint surface between a column and a beam is orthogonal to the column main bar and the beam main bar. There is disclosed a column-beam frame having intersecting reinforcing bars (see Patent Document 2).

  However, in a frame in which the side surfaces of the beams are arranged outside the side surfaces of the columns, it is difficult to secure the connection strength between the columns and the beams, and there is room for improvement in this respect.

JP 2011-58311 A JP 2012-26102A

  An object of the present invention is to improve the connection strength between a column and a beam in a frame in which the side surface of a beam is disposed outside the side surface of a column.

The first aspect is a column that constitutes a frame, a beam that constitutes the frame, and is connected to the column so that a side surface is outside the side surface of the column, and passes through a connection interface of the side surface of the beam. A connecting member provided so as to straddle the column and the beam, a supporting member provided at both ends of the connecting member to support the column and the beam, and a shear direction of the plurality of connecting members. And a restraining member for restraining the movement of the connecting member, wherein the beam is a steel beam having a plurality of insertion holes through which the connecting member is inserted, and the restraining member includes the steel beam and the plurality of connecting members. And a restraining bar that surrounds and restrains the beam.

In the first aspect , the shear force acting on the connection interface of the beam is resisted by the Dowel effect of the connection member provided with the supporting members at both ends. Further, the plurality of connecting members are effectively restrained from moving in the shear direction by the steel beams and the restraining bars. Therefore, the shear transmission by the Dowel effect of the connecting member is effectively performed, and a couple is generated, thereby resisting the beam bending moment. Therefore, the connection strength between the column and the beam in the frame in which the side surface of the beam is disposed outside the side surface of the column is improved. Further, by inserting the connecting member into the insertion hole of the steel beam, movement of the plurality of connecting members in the shear direction is easily restricted.

Second aspect, the steel beam is a C-shaped steel in which a plurality of the insertion holes in the web is formed, said restraining member has a said web, said a restraining muscle, a, according to the first aspect It is a column-beam connection structure.

In the second aspect , the plurality of connecting members are effectively restrained from moving in the shear direction by the C-shaped steel web and the restraining bars. Further, by inserting the connection member into the insertion hole of the web of the C-shaped steel, the movement of the plurality of connection members in the shear direction is easily restricted.

A third aspect is that the steel beam is an H-shaped steel in which a plurality of the insertion holes are formed in a web, and the restraining member has the web and the restraining bars, and the web and the column The column-beam connection structure according to the first embodiment , in which a filler is filled between the column and the side wall.

In the third aspect , the plurality of connecting members are effectively restrained from moving in the shear direction by the web of the H-section steel and the restraining bars. Further, by inserting the connection member into the insertion hole of the web of the H-section steel, movement of the plurality of connection members in the shear direction is easily restricted.

  ADVANTAGE OF THE INVENTION According to this invention, the connection intensity | strength of a pillar and a beam in the frame where the side surface of the beam is arrange | positioned outside the side surface of the pillar can be improved.

It is a perspective view showing the frame where the side of a beam concerning a first embodiment of the present invention was arranged outside the side of a pillar. (A) is a horizontal sectional view of the frame of FIG. 1, (B) is a vertical sectional view of the frame of FIG. 1 along the X direction. (C) is a vertical sectional view along the Y direction of the frame in FIG. 1. FIG. 3 is a diagram illustrating only main members such as connection reinforcing bars and restraining bars in FIG. (A) showing the first modification of the first embodiment is a side view seen from the X direction, (B) is a rear view seen from the column side in the Y direction, and (C) is a beam in the Y direction. It is the front view seen from the side. It is a horizontal sectional view corresponding to Drawing 2 (A) showing the 2nd modification of a first embodiment. (A) is a vertical sectional view (exploded vertical sectional view) along the Y direction showing a state before the columns and beams are connected in the frame of the second embodiment, and (B) is a Y direction after the connection. FIG. (A) is a vertical cross-sectional view along the Y direction including a state before the connection rebar in the column and the beam in the frame of the third embodiment is fastened, and (B) is a Y direction in another example of the beam. FIG. (A) is a vertical sectional view along a column, a beam, and the Y direction in the frame of the fourth embodiment, (B) is a diagram showing a connecting steel wire, and (C) is a front view seen from the Y direction. It is. (A) is a vertical sectional view (exploded vertical sectional view) along the Y direction showing a state before the column and the beam are connected in the frame of the fifth embodiment, and (B) is a Y direction after the connection. FIG. (A) is a vertical sectional view (exploded vertical sectional view) along the Y direction showing a state before the columns and beams are connected in the frame of the first modification of the second embodiment, and (B) is It is a vertical sectional view along the Y direction after connection. (A) is a vertical sectional view along the Y direction corresponding to FIG. 6 (B) showing an example in which the tip of the coupler protrudes in the second embodiment, and (B) is a disk of the coupler in the second embodiment. FIG. 7B is a vertical sectional view along the Y direction corresponding to FIG. 6B showing an example in which the side faces the beam side. (A) is a vertical sectional view (exploded vertical sectional view) along the Y direction showing a state before the columns and beams are connected in the frame of the second modification of the second embodiment, and (B) is It is a vertical sectional view along the Y direction after connection. It is a perspective view which shows the frame of the 3rd modification which the beam of 1st Embodiment is comprised by the 1st beam and the 2nd beam. FIG. 14 is a vertical sectional view of the frame of FIG. 13 along the X direction.

<First embodiment>
First, a column-beam structure in which a column and a beam are connected by applying the column-beam connection structure according to the first embodiment of the present invention will be described. The vertical direction is indicated by an arrow Z, the longitudinal direction of a beam described later is indicated by an arrow X, and the direction orthogonal to the Z direction and the X direction (the direction orthogonal to the column and the beam) is indicated by an arrow Y. Although FIGS. 2 and 3 are cross-sectional views, for the sake of simplicity, diagonal lines indicating cross sections are omitted.

(Construction)
As shown in FIGS. 1 and 2, the frame 10 is configured by connecting reinforced concrete columns 20 and reinforced concrete beams 30. In the present embodiment, the columns 20 and the beams 30 are flat columns and beams that are flat in the Y direction.

  The outer peripheral surface 22 of the column 20 includes a side surface 22A, a side surface 22B, a side surface 22C, and a side surface 22D. The outer peripheral surface 32 of the beam 30 includes a side surface 32A, an upper surface 32B, a side surface 32C, and a lower surface 32D. Further, in the present embodiment, the side surface 22A on the beam side that forms the outer peripheral surface 22 of the column 20 and the side surface 32A on the column side that forms the outer peripheral surface 32 of the beam 30 are connected.

  As shown in FIG. 2, the reinforced concrete column 20 has a plurality of column main reinforcements 40 arranged along the vertical direction (Z direction), and a plurality of column main reinforcements 40 arranged around the column main reinforcement 40 in the vertical direction (Z direction). A plurality of shear reinforcing bars (band bars) 42 arranged at intervals are embedded.

  In the reinforced concrete beam 30, a plurality of beam main reinforcements 44 arranged along the longitudinal direction (X direction) are arranged around the plurality of beam main reinforcements 44 at intervals in the longitudinal direction (X direction). A plurality of shear reinforcing bars (stirrups) 46 are embedded.

  As shown in FIGS. 2 (A) and 2 (B), the shear reinforcement 46 arranged near the joint portion of the beam 30 with the column 20 has a double reinforcement (two adjacent reinforcements). The main arrangement is).

  In the present embodiment, the side surface 32A of the beam 30 and the side surface 22A of the column 20 are connected as described above. In other words, the one side surface 32A in the Y direction that forms the outer peripheral surface 32 of the beam 30 is located outside (the other side in the Y direction) the one side surface 22C in the Y direction that forms the outer peripheral surface 22 of the column 20. Are located. Alternatively, a side surface 22C on one side in the Y direction that forms the outer peripheral surface 22 of the column 20 protrudes to one side in the Y direction from a side surface 32A on the one side in the Y direction that forms the outer peripheral surface 32 of the beam 30.

  In a front view (when viewed from the Y direction), a portion of the side surface 32A of the beam 30 that overlaps the side surface 22A of the column 20 is a connection interface 37 of the side surface 22A of the beam 30 (see FIG. 2A and FIG. C)).

  As shown in FIGS. 2 and 3, a plurality of connecting reinforcing bars 50 are embedded across the columns 20 and the beams 30 so as to pass through the connecting interface 37. Each connecting reinforcing bar 50 is arranged along the Y direction. Further, a mechanical fixing member 52 having a disk 54 (see FIG. 3) having a diameter larger than that of the connection rebar 50 is provided at both ends of each connection rebar 50.

  In the present embodiment, a total of 24 connecting reinforcing bars 50 are arranged so as not to interfere with the column main reinforcement 40, the shear reinforcement 42, the beam reinforcement 44, and the shear reinforcement 46 as shown in FIG. ing.

  As shown in FIG. 2 and FIG. 3, a plurality (24 in this embodiment) of the connecting rebars 50 are surrounded by restraining muscles 60 for each of a plurality of (in this embodiment, every six) and are restrained. . In addition, as shown in FIGS. 2A and 2C, the restraining bars 60 are provided close to the column 20 side and the beam 30 side with the connection interface 37 as a boundary. As shown in FIG. 3, a group of a plurality of (six in the present embodiment) connecting rebars 50 restrained by the restraining bars 60 is referred to as a connecting reinforcing bar group 62. In addition, four of these connecting reinforcing bar groups 62 are arranged in a rectangular shape (rectangular corners) at the connecting interface 37 when viewed from the Y direction.

  Further, as shown in FIG. 3, in the present embodiment, in each of the connecting rebar groups 62, a plurality of (six in the present embodiment) connecting rebars 50 are arranged in a rectangular shape when viewed from the Y direction. . However, the connection rebar 50 is not limited to this arrangement. The plurality of connection rebars 50 may be arranged, for example, in a circular shape.

(Action and effect)
Next, the operation and effects of the present embodiment will be described.

  Due to the Dowel effect of the connecting rebar 50 provided with the mechanical fixing members 52 at both ends, the shear force acting on the connecting interface 37 of the beam 30 is resisted. Further, since the plurality of connecting rebars 50 are restrained from moving in the shearing direction by the restraining bars 60, the shear transmission by the Dowel effect of the connecting rebars 50 is effectively performed, a couple is generated, and a resistance to the beam bending moment is generated. I do. Therefore, the connection strength between the column 20 and the beam 30 is improved. That is, the connection strength between the column 20 and the beam 30 is reliably ensured.

  Also, for example, when a beam bending moment rotating counterclockwise acts on the beam 30 as shown by an arrow K1 in FIG. 3, the connecting rebars 50 of the connecting rebar group 62 are subjected to the forces K2 and K3 in the shear direction. Although acting as a couple, the movement of the connecting reinforcing bar 50 is restricted by the restricting bar 60. As described above, the connecting rebar group 62 in which the connecting rebar 50 is constrained by the constraining bars 60 is disposed at four locations in the rectangular shape at the connecting interface 37, thereby improving the resistance to the beam bending moment due to couple. Therefore, the connection strength between the column 20 and the beam 30 is further improved.

[Modification]
Next, a modified example of the present embodiment will be described.

(First modification)
As shown in FIGS. 4A and 4C, an L-shaped joining member 70 is joined to the side surface 22A of the outer peripheral surface 22 of the column 20 and the upper surface 32B and the lower surface 32D of the outer peripheral surface 32 of the beam 30. I have. As shown in FIGS. 4A and 4B, an L-shaped joining member 70 is joined to the side surfaces 22B and 22D of the outer peripheral surface 22 of the column 20 and the side surface 32A of the outer peripheral surface 32 of the beam 30. Have been.

  By joining the joining member 70 to the outer peripheral surface 22 of the column 20 and the outer peripheral surface 32 of the beam 30 in this manner, the joining member 70 resists rotation of the beam 30 (beam bending moment (see FIG. 3)). Therefore, the rotational rigidity is improved. Therefore, the connection strength between the column 20 and the beam 30 is further improved.

  In this modification, the joining members 70 are provided at a total of four places, but the present invention is not limited to this. If one or more joint members 70 are provided, the rotational rigidity is improved.

(Second modification)
In the above embodiment, as shown in FIGS. 1 and 2, the side surface 22A of the pillar 20 and the side surface 32A of the beam 30 are connected, but the present invention is not limited to this. Explaining from another point of view, the main bar 40 of the column 20 is not arranged in the beam 30, and the main bar 44 of the beam 30 is not arranged in the column 20. It is not limited.

  As in the second modification shown in FIG. 5, a configuration may be employed in which the side surface 32A of the beam 30 is located inside the column 20, in other words, a configuration in which the beam cross section and the column cross section are partially joined. Explaining from another viewpoint, the main bar 40 of the column 20 may be arranged in the beam 30, or the main bar 44 of the beam 30 may be arranged in the column 20.

  Further, a portion in the column 20 on the side surface 32A of the beam 30 is a connection interface 37. In other words, in a front view (when viewed from the Y direction), a portion of the side surface 32A of the beam 30 that overlaps the side surface 22A of the column 20 is the connection interface 37.

  In the second modification of FIG. 5, an example is shown in which the column main reinforcement 40 of the column 20 is arranged inside the beam 30 and the beam main reinforcement 44 of the beam 30 is arranged inside the column 20. , Or only one of them.

  In short, the side surface 32A on the one side in the Y direction that forms the outer peripheral surface 32 of the beam 30 is located outside (the other side in the Y direction) the side surface 22C on the one side in the Y direction that forms the outer peripheral surface 22 of the column 20. It is sufficient if they are arranged. Alternatively, the one side surface 22C in the Y direction forming the outer peripheral surface 22 of the column 20 is disposed so as to protrude to one side in the Y direction from the one side surface 32A in the Y direction forming the outer peripheral surface 32 of the beam 30. Just do it.

  Further, in the above-described embodiment, as shown in FIG. 3, the periphery is restrained by a plurality of (every six in the above-described embodiment) by the restraining muscle 60, but is not limited thereto. As in the second modification shown in FIG. 5, the configuration may be such that all the connection reinforcing bars 50 are restrained by the restraining bars 60.

(Third modification)
As shown in FIGS. 13 and 14, the beam 30 includes a first beam 31 and a second beam 33. The end face 37 of the first beam 31 and the end face 39 of the second beam 33 are arranged to face each other, and concave portions 37A and 39A are formed respectively.

  As shown in FIG. 13, a grout material 172 is filled between an end face 37 of the first beam 31 including these recesses 37A and 39A and an end face 38 of the second beam 33. The grout material 172 is also filled between the side surface 22A of the column 20 and the side surface 32A of the beam 30 (the first beam 31 and the second beam 33).

  As shown in FIG. 14, the connecting bar 50 (the connecting bar group 62 (see FIG. 3)) on the right half of the figure is embedded in the first beam 31, and the connecting bar 50 (the connecting bar group 62 ( 3) is buried in the second beam 33.

  In this modification, concave portions 37A and 39A are formed on the end face 37 of the first beam 31 and the end face 39 of the second beam 33, respectively, and the grout material 172 is filled. Therefore, the shearing force is effectively transmitted between the end face 37 of the first beam 31 and the end face 39 of the second beam 33.

<Second embodiment>
Next, a column-beam frame in which a column and a beam are connected by applying the column-beam connection structure according to the second embodiment of the present invention will be described. Note that the same members as those of the first embodiment are denoted by the same reference numerals, and overlapping description will be omitted or simply described.

(Construction)
As shown in FIG. 6, the pillar 120 and the beam 130 of the present embodiment are made of precast concrete.

  The column 120 has a plurality of insertion holes 180 through which the connection reinforcing bars 150 (FIG. 6B) are inserted. The insertion hole 180 opens on the side surface 122A of the pillar 120, and a recess 182 is formed in the opening. Similarly, the beam 130 has a plurality of insertion holes 190 through which the connection reinforcing bars 150 (see FIG. 6B) are inserted. The insertion hole 190 is a through hole opened on the side surface 132A and the side surface 132C. In addition, a concave portion 192 is formed in the opening of the side surface 132C of the insertion hole 190.

  The connection reinforcing bar 150 has a first spiral reinforcing bar 151 and a second spiral reinforcing bar 153, and ends of the first spiral reinforcing bar 151 and the second spiral reinforcing bar 153 are joined by a coupler 155 to be integrated. ing. Further, the mechanical fixing member 52 and the supporting member 152 are fastened to both ends of the connection reinforcing bar 150.

  The coupler 155 fits into the concave portion 182 on the side surface 122A of the column 120, and the bearing member 152 fits into the concave portion 192 on the side surface 132C of the beam 130. The column-side mechanical fixing member 52 is embedded in the column 120. In the present embodiment, the mechanical fixing member 52, the supporting member 152, and the coupler 155 are members having substantially the same structure except that the provided positions are different.

  A grout 172 is filled between the side surface 122A of the pillar 120 and the side surface 132A of the beam 130. Therefore, the connection reinforcing bar 150 is restrained from moving in the shear direction by the steel plate 170. The grout material 172 is also filled in the recess 182.

  In a front view (when viewed from the Y direction), a portion of the side surface 132A of the beam 130 that overlaps the side surface 122A of the column 120 is the connection interface 137.

  Further, as shown in FIG. 11A, a configuration may be adopted in which the distal end 155A of the coupler 155 housed in the concave portion 182 of the side surface 122A of the pillar 120 projects from the concave portion 182.

  Alternatively, as shown in FIG. 11B, the coupler 155 housed in the concave portion 182 of the side surface 122A of the pillar 120 may be arranged such that the disk 54 side faces the beam 130 side.

(Action and effect)
Next, the operation and effects of the present embodiment will be described.

  As in the first embodiment, the connection strength between the column 120 and the beam 130 is improved by the connection reinforcing bar 150 in which the mechanical fixing member 52 and the supporting member 152 are provided at both ends. In addition, each connecting reinforcing bar 150 is improved in resistance to a beam bending moment by a couple generated effectively by being restrained by the grout material 172. Therefore, the connection strength between the column 120 and the beam 130 is further improved.

  In addition, by filling the grout material 172 between the precast concrete column 120 and the precast beam 130, the movement of the plurality of connection reinforcing bars 150 in the shear direction is restricted, and the connection interface 137 of the beam 130 is changed. The connecting reinforcing bar 150 can be easily provided across the column 120 and the beam 130 so as to pass through.

  In the present embodiment, the connection reinforcing bar 150 has a structure in which the first spiral reinforcing bar 151 and the second spiral reinforcing bar 153 are joined by the coupler 155 to be integrated, but is not limited thereto. For example, two rebars may be connected and integrated by a configuration in which rolling screws are provided at both ends of the rebar, a configuration in which screws are provided by friction bonding, or an EG joint. Alternatively, one connecting reinforcing bar may be used.

[Modification]
Next, a modified example of the present embodiment will be described.

(First modification)
In the first modified example, as shown in FIG. 10, a steel plate 170 is sandwiched between a side surface 122A of the column 120 and a side surface 132A of the beam 130. The steel plate 170 is provided with a plurality of through holes 172 through which the connection reinforcing bars 150 are inserted. Therefore, the connection reinforcing bar 150 is restrained from moving in the shear direction by the steel plate 170.

  As described above, by inserting the connecting reinforcing bar 150 with the steel plate 170 interposed between the precast concrete column 120 and the precast beam 130, the movement of the plurality of connecting reinforcing bars 150 in the shear direction is restricted, and The connection reinforcing bar 150 can be easily provided across the column 120 and the beam 130 so as to pass through the connection interface 137 of the beam 130.

(Second modification)
In the second modified example, as shown in FIG. 12A, a spiral reinforcing bar 202 having a mechanical fixing member 52 provided at an end thereof is embedded in a pillar 120. Further, a sleeve joint 200 to which the spiral reinforcing bar 202 is connected is embedded in the beam 130.

  As shown in FIG. 12B, a spiral reinforcing bar 202 protruding from the column 120 is inserted into the sleeve joint 200 of the beam 130, and the grout material 172 is filled and connected. The grout 172 is filled between the side surface 122A of the pillar 120 and the side surface 132A of the beam 130.

<Third embodiment>
Next, a column-beam frame in which a column and a beam are connected by applying the column-beam connection structure according to the third embodiment of the present invention will be described. The same members as those of the first embodiment and the second embodiment are denoted by the same reference numerals, and overlapping description will be omitted or simply described.

(Construction)
As shown in FIG. 7A, the pillar 120 of the present embodiment is made of precast concrete. Note that the pillar 120 does not have the concave portion 182 formed on the side surface 122A. Further, two restraining bars 60 are provided around the insertion hole 180 of the pillar 120. Except for these, the configuration is the same as the column 120 of the second embodiment.

  The beam 230 according to the present embodiment is a steel beam made of C-shaped steel. The web 232 of the beam 230 has a plurality of insertion holes 234 through which the connection reinforcing bars 250 formed of spiral reinforcing bars are inserted. Support members 152 are fastened to both ends of the connection reinforcing bar 250. Since the connection reinforcing bar 250 is inserted into the insertion hole 234 of the web 232 of the beam 230, the movement in the shear direction is restricted by the web 232.

  The side surface 232A of the web 232 of the beam 230 is connected to the side surface 122A of the column 120, and a portion of the side surface 232A that overlaps the side surface 122A of the column 120 at the connection interface 237 in a front view (when viewed from the Y direction). is there.

(Action and effect)
Next, the operation and effect of the present embodiment will be described.

  As in the first embodiment and the second embodiment, the connection strength between the column 120 and the beam 230 is improved by the connection reinforcing bar 250 having the mechanical fixing member 52 and the supporting member 152 provided at both ends. Further, each connection reinforcing bar 250 is effectively restrained by the web 232 of the beam 230 and the two restraining bars 60, and a couple force generated effectively improves resistance to a beam bending moment. Therefore, the connection strength between the column 120 and the beam 230 is further improved.

  In addition, by inserting the connection rebar 250 into the insertion hole 234 of the web 232 of the beam 230, the movement of the plurality of connection rebars 250 in the shear direction is easily restricted.

  In the present embodiment, the beam 230 is a steel beam made of C-shaped steel, but is not limited to this. For example, as shown in FIG. 7B, for example, a beam 260 made of an H-shaped steel having an insertion hole 264 formed in a web 262 may be used. In this case, a filler 268 such as mortar or grout is filled between the web 262 and the side surface 122A of the column 120. In addition, between the web 262 and the side surface 122 </ b> A of the column 120, the restraining bar 60 is disposed so as to restrain the movement of the connecting bar 250, and is embedded in the filler 268.

  The side surface 268A of the filler 268 is connected to the side surface 122A of the column 120, and a portion of the side surface 268A that overlaps the side surface 122A of the column 120 is a connection interface 239 in a front view (when viewed from the Y direction).

<Fourth embodiment>
Next, a column-to-column frame connected by applying the column-to-column connection structure according to the fourth embodiment of the present invention will be described. The same members as those in the first to third embodiments are denoted by the same reference numerals, and overlapping description will be omitted or simply described.

(Construction)
As shown in FIG. 8A, the columns 320 and beams 130 of the present embodiment are made of precast concrete. Note that the beam 130 has the same configuration as the beam 130 of the second embodiment.

  The column 320 has a plurality of insertion holes 380 through which the connection steel wires 350 are inserted. The insertion hole 380 has a substantially U-shape in a lateral direction in a side view, and both ends are opened on a side surface 322A of the column 320.

  Then, when the side surface 322A of the column 320 and the side surface 132A of the city of the beam 130 abut, the insertion hole 380 on the column side and the insertion hole 190 on the beam side are connected, and the connection steel wire 350 is inserted. Support members 152 are fastened to both ends of the connection steel wire 350. Note that a configuration in which the insertion holes 380 on the pillar side intersect as in the right side of FIG. 8C may be employed.

  Further, as shown in FIG. 8, a grout material 172 for eliminating unevenness of the precast concrete surface is filled between the side surface 322A of the column 320 and the side surface 132A of the beam 130. Therefore, the connection steel wire 350 is restrained from moving in the shear direction by the grout material 172.

(Action and effect)
Next, the operation and effects of the present embodiment will be described.

  As in the first embodiment, the connection strength between the column 320 and the beam 130 is improved by the connection steel wire 350 in which the mechanical fixing member 52 and the supporting member 152 are provided at both ends. Further, each connecting steel wire 350 is improved in resistance to the beam bending moment by a couple generated effectively by being restrained by the grout material 172. Therefore, the connection strength between the column 320 and the beam 130 is further improved.

  Note that a steel plate 170 (see FIG. 10) may be interposed between the side surface 322A of the column 320 and the side surface 132A of the beam 130, and the movement of the connecting steel wire 35 in the shear direction may be restricted by the steel plate 170.

<Fifth embodiment>
Next, a description is given of a beam-column frame connected by applying the beam-column connection structure according to the fifth embodiment of the present invention. The same members as those in the first to fourth embodiments are denoted by the same reference numerals, and overlapping description will be omitted or simply described.

(Construction)
As shown in FIG. 9, the pillar 420 and the beam 430 of this embodiment are made of precast concrete. In the column 420, a plurality of insertion holes 480 through which the connection reinforcing bars 250 are inserted are formed obliquely at an angle α with respect to the horizontal. The insertion hole 480 opens on the side surface 422A of the pillar 420.

  The beam 430 has the side surfaces 432A and 432C arranged obliquely at an angle α with respect to the vertical, and has a substantially parallelogram shape in a side view. In the beam 430, a plurality of insertion holes 490 through which the connection reinforcing bars 250 are inserted are formed obliquely at an angle α with respect to the horizontal. The insertion hole 490 is a through hole opened on the side surface 432A and the side surface 432C.

  A pedestal 425 is provided between the side surface 422A of the pillar 420 and the side surface 432A of the beam 430. The side surface 425A of the pedestal 425 on the column 420 side is vertical, but the side surface 425C of the pedestal 425 on the beam 430 side is an inclined surface having an angle α with respect to the vertical. The pedestal 425 is formed with a through-hole 482 through which the connection reinforcing bar 250 is inserted, at an angle α to the horizontal. Further, the connection reinforcing bar 250 is restrained by the base 425.

  In the present embodiment, the grout material 172 is filled between the side surface 425A of the pedestal 125 and the side surface 432A of the beam 430 (between the side surface 425A of the pedestal 125 and the side surface 432A of the beam 430). A grout layer is provided).

  Further, a solar panel 450 in which solar cells are arranged and interconnected to form a panel is attached (fixed) to the side surface 432C of the beam 430.

  In a front view (when viewed from the Y direction), a portion of the side surface 432A of the beam 430 that overlaps the side surface 422A of the column 420 is the connection interface 437.

(Action and effect)
Next, the operation and effects of the present embodiment will be described.

  As in the first embodiment, the connection strength between the column 420 and the beam 430 is improved by the connection reinforcing bar 250 provided with the mechanical fixing member 52 and the supporting member 152 at both ends. In addition, the resistance to the beam bending moment of each connection reinforcing bar 250 is improved by a couple generated effectively by being restrained by the pedestal 425. Therefore, the connection strength between the column 420 and the beam 430 is further improved.

  Further, since the side surface 422C of the beam 430 is oblique, the angle of the light receiving surface 450C of the solar panel 450 with respect to the sun 460 (see FIG. 9B) is close to a right angle, and the power generation efficiency of the solar panel 450 is improved. .

<Others>
Note that the present invention is not limited to the above embodiment.

  For example, in the second embodiment to the fifth embodiment as well, similarly to the first embodiment, a configuration in which the connecting rebar or the connecting steel wire is restrained by the restraining bar 60 may be employed. Also, in the first embodiment, a steel plate having a through hole may be used as the restraining member. Further, a structure having both restraining bars and a steel plate may be used.

  According to the present invention, there is provided a column in which one side surface in the Y direction constituting the outer peripheral surface of the beam is disposed outside (the other side in the Y direction) side of the one side in the Y direction constituting the outer peripheral surface of the column. It can be applied to beam structures in general. Alternatively, the entire column-beam frame in which the side surface on one side in the Y direction forming the outer peripheral surface of the column protrudes to one side in the Y direction from the one side surface on the Y direction forming the outer peripheral surface of the beam. Can be applied to In addition, the connection interface refers to a portion (connected portion) that overlaps the side surface of the pillar on one side surface in the Y direction of the beam when viewed from the front (when viewed from the Y direction).

  In addition, the above-described plurality of embodiments and modified examples can be appropriately combined and implemented. Further, it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 Frame 20 Column 30 Beam 37 Connection interface 50 Connection reinforcement (an example of a connection member)
52 Mechanical fixing member (example of supporting member)
60 Restraining muscles (an example of restraining members)
62 Connecting Rebar Group (Example of Connecting Member Group)
120 pillar 130 beam 137 connection interface 150 connection rebar (an example of a connection member)
152 Bearing member 170 Steel plate (an example of a restraining member)
172 grout material (an example of a restraining member)
180 insertion hole (column side insertion hole)
190 insertion hole (beam side insertion hole)
200 Sleeve joint 202 Spiral rebar (an example of a connecting member)
202 Sleeve joint 230 Beam 237 Connection interface 239 Connection interface 232 Web (an example of a restraining member)
234 insertion hole (beam side insertion hole)
250 Connection Rebar (Example of Connection Member)
260 beam 262 web (an example of a restraining member)
264 insertion hole (beam side insertion hole)
320 pillar 350 connecting steel wire (example of connecting member)
380 insertion hole (column side insertion hole)
420 pillar 425 pedestal (an example of a restraining member)
430 Beam 437 Connection interface 480 Insertion hole (column side insertion hole)
490 insertion hole (beam side insertion hole)

Claims (4)

Pillars that make up the frame,
A beam that constitutes the frame, and is connected to the column so that a side surface is outside a side surface of the column,
A connection member provided across the column and the beam so as to pass through a connection interface on the side surface of the beam,
A support member provided at both ends of the connection member to support the column and the beam,
A restraining member that restrains movement of the plurality of connection members in the shear direction,
With
The beam is a steel beam formed with a plurality of insertion holes through which the connection member is inserted,
The restraining member has the steel beam and a restraining bar surrounding and restraining the plurality of connecting members ,
A plurality of the connection members have a plurality of connection member groups restrained by the restraining muscle,
The connection member group is arranged at least four in a rectangular shape,
Column-beam connection structure. The steel beam is a C-shaped steel in which a plurality of the insertion holes are formed in a web,
The restraining member has the web and the restraining muscle,
The column-beam connection structure according to claim 1. The steel beam is an H-section steel in which a plurality of the insertion holes are formed in a web,
The restraining member has the web and the restraining muscle,
A filler is filled between the web and the side surface of the column,
The column-beam connection structure according to claim 1.   Pillars that make up the frame,
  A beam that constitutes the frame, and is connected to the column so that a side surface is outside a side surface of the column,
  A connection member provided across the column and the beam so as to pass through a connection interface on the side surface of the beam,
  A support member provided at both ends of the connection member to support the column and the beam,
  A restraining member that restrains movement of the plurality of connection members in the shear direction,
  With
  The beam is a steel beam formed with a plurality of insertion holes through which the connection member is inserted,
  The restraining member has the steel beam and a restraining bar surrounding and restraining the plurality of connecting members,
  The steel beam is an H-shaped steel in which a plurality of the insertion holes are formed in a web,
  The restraining member has the web and the restraining muscle,
  A filler is filled between the web and the side surface of the column,
  Column-beam connection structure.