JP2015129412A - Construction method for column-beam frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method for a column-beam frame, which facilitates adaptation to diverse frame types and execution methods.SOLUTION: A construction method for a column-beam frame 10 includes the steps of: erecting a first PCa column 14 in which a first longitudinal joint member is embedded; erecting a second PCa column 16, having a joint part 17 in which a first lateral through-hole is formed, next to the first column 14; moving a joint part 19 with a formed first longitudinal through-hole 44 and a first PCa beam 18 having beam reinforcements 36 and 46 protruded from both ends, and joining the beam reinforcement 46 in such a manner as to make it pass through a first through-hole 40 of the second column 16; moving a second PCa beam 20 having first lateral joint members 32 laterally embedded at both ends, and inserting and joining the beam reinforcement 46 of the first beam 18 into the first lateral joint member 32; and moving an upper-story column 14U with a protruded connection reinforcement 42U downward, and joining it to the first longitudinal joint member 30 of the first column 14 by making it pass through the first longitudinal through-hole of the first beam 14.

Description

  The present invention relates to a method for constructing a column beam frame.

In the case of a column made of precast concrete (PCa) and a column beam made of PCa constructed of beams made of PCa, reduction of concrete placing work on site is required.
Here, a column beam frame made of PCa that does not require concrete placement work on site has been proposed (Patent Document 1).

In Patent Document 1, a column made of PCa having a joint portion in which a plurality of through holes are formed in the horizontal direction, and a plurality of connecting bars for beams are projected from one end surface in the longitudinal direction, and the other end surface is Inward, a method for constructing a column beam frame using a PCa beam in which a plurality of beam joint members are embedded is described.
Specifically, in the first step, the column made of PCa is moved downward in the vertical direction and installed at a position in contact with the end face of one of the beams arranged in advance. Subsequently, in the second step, the other beam made of PCa in which the beam connecting reinforcing bar protrudes from the end face in the horizontal direction is moved in the horizontal direction, and the beam is inserted into the through hole of the column joint formed in the column. The connecting rebar is penetrated and joined to a beam joint member embedded in one of the beams. The first and second steps are sequentially repeated to construct the column beam frame.

Japanese Patent No. 4781687

  However, in the technique of Patent Document 1, all the joints are provided on the columns made of PCa, and are connected reinforcing bars for beams protruding in the horizontal direction from the beams made of PCa. Connected in the same direction. Thus, since the column beam frame of patent document 1 is a uniform structure, it is difficult to cope with various frame types and construction methods.

  In view of the above facts, the present invention can provide various types of column beam structures by dispersing the joints in the PCa columns and the PCa beams, or by changing the method of connecting reinforcing bars and the connecting direction. It aims at facilitating the correspondence to the frame type and construction method.

  The construction method of the column beam frame according to the invention of claim 1 includes a step of building a first column made of precast concrete having no joint portion and having a first vertical joint member embedded in the vertical direction on the upper surface, A step of building a second column made of precast concrete having a joint portion in which a first horizontal through hole is formed in the horizontal direction next to the first column, and a first vertical through hole is formed in the vertical direction. A first beam made of precast concrete having a joint portion and a beam length corresponding to one span and projecting the beam reinforcing bar from both ends is moved in the lateral direction, and the beam reinforcing bar is connected to the first column of the second column. The step of joining by penetrating the horizontal through-hole, the beam length for one span, the second beam made of precast concrete in which the first horizontal joint member is embedded in the lateral direction at both ends is moved in the lateral direction, The beam reinforcement of the first beam is inserted into the first lateral joint member And a step of moving the upper-level column with the column reinforcing bar protruding from the lower surface, and passing the column reinforcing bar through the first vertical through hole of the first beam to the first column of the first column. And a step of joining to one longitudinal joint member.

According to the first aspect of the present invention, the beam reinforcing bar protruding from the first beam is inserted into the first lateral through hole formed in the joint portion of the second column, and the second column and the first beam are Be joined. In addition, the beam reinforcement that protrudes from the column on the upper floor is inserted into the first vertical through hole formed in the joint portion of the first beam, the first column and the first beam are joined, and protrude from the first beam The first beam and the second beam are joined by the beam reinforcement.
Thereby, a joint part can be disperse | distributed to a 2nd pillar and a 1st beam. At this time, the joining directions of the connecting reinforcing bars penetrating the joint portion can be made different in the vertical direction and the horizontal direction, respectively. Further, the configurations of the first column and the second column, and the first beam and the second beam can be made different from each other. As a result, it is possible to easily cope with various frame types and construction methods of the column beam frame.

  The construction method of the column beam frame according to the invention of claim 2 includes a step of building the first column made of precast concrete in which the first vertical joint member is embedded in the vertical direction on the upper surface without a joint portion, A step of building a second column made of precast concrete having a joint portion in which a first horizontal through hole is formed in the horizontal direction next to the first column, and a first vertical through hole is formed in the vertical direction. A joint portion and a beam length for one span are provided, a first transverse joint member is embedded in a lateral direction at the end portion on the joint portion side, and a beam reinforcing bar is projected from the end portion on the second column side. The first beam made of precast concrete is moved laterally, and the beam rebar is joined through the first lateral through-hole of the second column, and the beam length for one span is provided. The second beam made of precast concrete with beam reinforcement protruding from the end of the beam 1 is moved laterally. , The step of inserting and joining the beam rebar to the first transverse joint member of the first beam, moving the column on the upper floor with the column rebar protruding from the lower surface, and moving the column rebar to the first And a step of passing through the first vertical through hole of one beam and joining to the first vertical joint member of the first column.

According to invention of Claim 2, the beam reinforcement protruded from the 1st beam is inserted in the 1st horizontal penetration hole formed in the joint part of the 2nd pillar, and the 2nd pillar and the 1st beam are Be joined. In addition, the column reinforcement that protrudes from the column on the upper floor is inserted into the first vertical through hole formed in the joint portion of the first beam, the first column and the first beam are joined, and the column protrudes from the second beam The first beam and the second beam are joined by the beam reinforcement.
Thereby, a joint part can be disperse | distributed to a 2nd pillar and a 1st beam. At this time, the joining direction of the connecting reinforcing bars penetrating the joint portion can be made different in the vertical direction and the horizontal direction. Further, the configurations of the first column and the second column, and the first beam and the second beam can be made different from each other. As a result, it is possible to easily cope with various frame types and construction methods of the column beam frame.

  According to a third aspect of the present invention, there is provided a method for constructing a column beam structure in which a first column made of precast concrete having a joint portion in which a first lateral through hole is formed in a lateral direction protrudes from a beam arranged in advance. The beam reinforcing bar has a beam length corresponding to one span, and the first horizontal joint member is embedded in both ends in the horizontal direction while passing the first beam through the first through hole and moving in the horizontal direction. A step of laterally moving the first beam made of precast concrete to join the beam reinforcing bar protruding from the first lateral through hole and the first horizontal joint member, and a process in which the second lateral through hole is formed in the lateral direction. A second beam made of precast concrete having a step of building a second column made of precast concrete having a mouth portion adjacent to the first column, a beam length of one span, and a beam reinforcing bar projecting from both ends. Is moved laterally, and the beam reinforcement is It is characterized by comprising the steps of: passed through a 2 lateral holes joined to the first lateral joint member of the first beam and the.

According to the invention described in claim 3, the beam reinforcing bar protruding from the beam arranged in advance is inserted into the first lateral through hole formed in the joint portion of the first column, and the first column and the first column The beams are joined. Further, the beam reinforcing bar protruding from the second beam passes through the second lateral through hole formed in the joint portion of the second column, is joined to the first beam, and the second column, the first beam, and The second column and the second beam are joined.
As a result, although the joint portion is provided on both the first column and the second column, the joining direction of the connecting reinforcing bars penetrating the joint portion is changed from the right direction to the left direction in the front view. be able to. Further, the configurations of the first column and the second column, and the first beam and the second beam can be made different from each other. As a result, it is possible to easily cope with various frame types and construction methods of the column beam frame.

  According to a fourth aspect of the present invention, there is provided a method for constructing a column beam structure in which a first column made of precast concrete having a joint portion in which a beam reinforcing bar is protruded laterally from both side surfaces is arranged at the end of a beam arranged in advance. The horizontal joint member embedded in the part is provided with a step of moving in the horizontal direction while inserting the beam reinforcing bar, and a beam length for one span, and the first horizontal joint member is embedded in the lateral direction at both ends. A step of laterally moving the precast concrete first beam to join the beam reinforcing bar protruding from the first beam and the first horizontal joint member, and a process in which the first horizontal through hole is formed in the horizontal direction. A precast concrete second column having a mouth portion is built next to the first column, a beam length corresponding to one span, and a beam reinforcement projecting from the end of the second column side Move the second concrete beam laterally, Rebar, is characterized by having a step of joining the first lateral joint member of the second pillar said by penetrating the first transverse through-hole first beams.

According to invention of Claim 4, the beam reinforcement protruded from the joint part of the 1st column is joined with the joint member of the 1st beam, and the 1st column and the 1st beam are joined. In addition, the beam reinforcing bar protruding from the second beam passes through the first lateral through hole formed in the second column and is joined to the first beam, and the second column, the first beam, the first beam, and the first beam Two beams are joined.
Thereby, although a joint part is provided in a 1st pillar and a 2nd pillar, respectively, the bar arrangement method of the connection reinforcement in a joint part can be varied, respectively. Further, the configurations of the first column and the second column, and the first beam and the second beam can be made different from each other. As a result, it is possible to easily cope with various frame types and construction methods of the column beam frame.

  According to a fifth aspect of the present invention, there is provided a method for constructing a column beam structure in which a first pillar made of precast concrete having a joint portion in which a first lateral through hole is formed in a lateral direction is built, and the first lateral penetration is formed. A beam connecting rebar is passed through the hole, and the beam rebar is inserted into the transverse joint member embedded in the end of the beam arranged in advance, and the beam length for one span is provided. A step of laterally moving the first beam made of precast concrete in which the first horizontal joint member is embedded, and inserting and joining the beam connecting reinforcing bar protruding from the first horizontal through hole to the first horizontal joint member; The second column made of precast concrete having a joint portion in which a second lateral through hole is formed in the lateral direction is provided next to the first column, and a beam length for one span, Precast concrete with beam reinforcement protruding from the end of 2 pillars Moving the second beam made of metal laterally and passing the beam reinforcing bar through the second lateral through hole of the second column to join the first lateral joint member of the first beam; It is characterized by having.

According to the fifth aspect of the present invention, the beam connecting rebar for beam connection is inserted into the first lateral through hole formed in the joint portion of the first column, and the first column and the first beam are joined. The Further, the beam reinforcing bar protruding from the second beam passes through the second lateral through hole formed in the joint portion of the second column, is joined to the first beam, and the second column, the first beam, and The first beam and the second beam are joined.
Thereby, although all the joint parts are provided in the 1st pillar and the 2nd pillar, and become the same composition, the bar arrangement method of the connection reinforcing bar in a joint part can be varied, respectively. Further, the configurations of the first beam and the second beam can be made different from each other. As a result, it is possible to easily cope with various frame types and construction methods of the column beam frame.

  Since the present invention is configured as described above, the joints can be provided in a distributed manner on the PCa columns and the PCa beams, or the connecting bar reinforcing method and connecting direction can be changed. Therefore, it is possible to easily cope with various frame types and construction methods.

It is sectional drawing which shows typically the column beam frame constructed | assembled with the construction method which concerns on 1st Embodiment of this invention. (A), (B) is sectional drawing which shows the construction step in the construction method of the column beam frame which concerns on 1st Embodiment of this invention. (A), (B) is sectional drawing which shows the construction step in the construction method of the column beam frame which concerns on 1st Embodiment of this invention. (A), (B) is sectional drawing which shows the construction step in the construction method of the column beam frame which concerns on 1st Embodiment of this invention. It is sectional drawing which shows typically the column beam frame constructed | assembled with the construction method which concerns on 2nd Embodiment of this invention. (A), (B) is sectional drawing which shows the construction step in the construction method of the column beam frame which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows typically the column beam frame constructed | assembled with the construction method which concerns on 3rd Embodiment of this invention. (A), (B) is sectional drawing which shows the construction step in the construction method of the column beam frame which concerns on 3rd Embodiment of this invention. (A), (B), (C) is sectional drawing which shows the connection procedure of the column in the construction method of the column beam frame which concerns on 3rd Embodiment of this invention. It is sectional drawing which shows typically the column beam frame constructed | assembled with the construction method which concerns on 4th Embodiment of this invention. (A), (B) is sectional drawing which shows the construction stage in the construction method of the column beam frame which concerns on 4th Embodiment of this invention. (A), (B) is sectional drawing which shows the construction stage in the construction method of the column beam frame which concerns on 4th Embodiment of this invention. It is sectional drawing which shows typically the column beam frame constructed | assembled with the construction method which concerns on 5th Embodiment of this invention. (A), (B) is sectional drawing which shows the construction step in the construction method of the column beam frame which concerns on 5th Embodiment of this invention.

(First embodiment)
The construction method of the column beam frame 10 according to the first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a cross-sectional view seen from the front showing a column beam structure 10 constructed by the construction method according to the present embodiment, and FIGS. 2 to 4 show construction stages.

  FIG. 1 shows a part of the column beam frame on the reference floor nF of the column beam frame 10. Although the column beam frame 10 is described only in one direction (X-axis direction), a similar column beam frame is also constructed in the depth direction (Y-axis direction) of the drawing. Furthermore, it is also constructed in the vertical direction (Z-axis direction) to form a multi-layered column beam structure.

The column beam frame 10 includes a column beam frame 26 positioned at an end, and a column beam structure 28 that is constructed following the column beam frame 26. The column beam construction 28 is constructed by repeating the required minimum number of column beam frames 12 (12A, 12B,...) As many times as necessary.
The column beam frame 12 (12A, 12B,...) Has the same configuration, and will be described as the column beam frame 12 hereinafter.

First, the construction method of the column beam frame 26 located at the end will be described.
The column beam frame 26 is constructed by a column 22 made of precast concrete (hereinafter referred to as PCa) and a beam 24 made of PCa.
As shown in FIG. 2A, first, the pillar 22 is built in a predetermined position. Here, the column 22 has a column length H corresponding to a floor height (hereinafter, referred to as a height H between beams on the upper and lower floors in the present embodiment), and a joint portion 23 is integrated with the upper portion of the column 22. Is formed. A column sleeve 30 is embedded in the lower surface of the column 22, and a connecting rod 34 for the column projects from the upper surface of the joint portion 23. Further, from one side surface of the joint portion 23, a connecting reinforcing bar 36 for the beam is projected.

  The pillar 22 is moved vertically downward (in the direction of the arrow DV), built on the pillar 22D made of PCa arranged in advance on the lower floor, and joined to the pillar 22D. Here, the column 22D has the same configuration as the column 22, and a connection reinforcing bar (column reinforcing bar) 34D protruding from the upper surface of the column 22D is inserted into the sleeve 30 of the column 22 and joined. At this time, the connecting reinforcing bars (beam reinforcing bars) 36 are directed in the direction in which the column beam frame 12 is constructed (X-axis direction).

  Next, the beam 24 made of PCa is moved in the lateral direction (arrow H direction) and joined to the joint portion 23 of the column 22. Here, the beam 24 has a length S corresponding to one span (hereinafter, referred to as a distance S between side surfaces of adjacent columns in the present embodiment), and sleeves for the beam are provided at both ends in the longitudinal direction. 32 is embedded. Thereby, the connecting reinforcing bar 36 for the beam protruding from the column 22 is inserted into the sleeve 32 on the column 22 side and joined. At this time, the other end of the beam 24 is supported by the support 38 as necessary.

The joint between the column 22 and the column 22D and the joint between the column 22 and the beam 24 are fixed by filling or press-fitting and filling the joints and the sleeves 30 and 32 with grout.
The column beam frame 26 is constructed by the above procedure (see FIG. 2B).

Then, the construction method of the column beam frame 12 is demonstrated.
Here, the column beam frame 28 is constructed by the columns 14 and 16 made of PCa and the beams 18 and 20 made of PCa.

First, as shown in FIG. 3A, the pillar (first pillar) 14 is built on the beam 18D on the lower floor arranged in advance. Here, the pillar 14 has a beam length H corresponding to the floor height, and no joint is provided. A column sleeve (first longitudinal joint member) 30 is embedded in the upper surface in the vertical direction, and a column connection reinforcing bar (column reinforcing bar) 42 is projected from the lower surface.
As will be described later, the column 14 is moved downward in the vertical direction (in the direction of arrow D) during the construction of the lower-level column beam frame 12D arranged in advance, and the through hole 44D of the beam 18D made of PCa on the lower floor. And is joined to the sleeve 30 of the column 14D.

Next, a pillar (second pillar) 16 is built next to the pillar 14 with a distance S corresponding to one span.
Here, the column 16 has a column length H corresponding to the height of the floor, and the joint portion 17 is integrally formed at the upper portion. In addition, a through hole (first horizontal through hole) 40 is formed in the joint portion 17 in the lateral direction, and a connecting rod 34 for a column protrudes from the upper surface of the joint portion 17. A column sleeve (first longitudinal joint member) 30 is embedded in the lower surface in the vertical direction.

  The column 16 is moved downward in the vertical direction indicated by the arrow DV and joined to the PCa column 16D on the lower floor. The column 16D has the same configuration as the column 16, and a connection reinforcing bar 34D protruding from the upper surface of the column 16D is inserted into and joined to the column sleeve 30. At this time, the pillar 16 is built with the through hole 40 facing in the direction (X-axis direction) in which the pillar beam frame 12 is constructed.

Next, as shown in FIG. 3B, the beam (first beam) 18 is attached to the column 16.
Here, the beam 18 has a beam length S for one span, and a joint portion 19 is provided at one end. A through hole (first through hole) 44 is formed in the joint portion 19 of the beam 18 in the vertical direction. Further, from the end of the beam 18 on the column 16 side, a connecting reinforcing bar 46 for the beam is projected in the lateral direction.

  The beam 18 is moved in the horizontal direction (arrow HV direction) while being placed on the column 14. As a result, the beam reinforcement 46 penetrates the through hole 40 of the column 16 and the tip is joined to the sleeve 32 of the beam 24. At this time, the beam 18 is supported by the support 38 as necessary. In the state where the beam 18 is joined to the column 16, the joint portion 19 is placed on the upper surface of the column 14, and the positions of the through hole 44 of the beam 18 and the sleeve 30 of the column 14 coincide with each other in the vertical direction.

Next, as shown in FIG. 4A, the beam (first beam) 20 is moved in the lateral direction (arrow HV direction) and attached to the joint 19.
Here, the beam 20 has the same configuration as the beam 24 described above, has a beam length S for one span, and a sleeve 32 for the beam is embedded at both ends in the longitudinal direction. By moving the beam 20 in the direction of the arrow HV, the connection reinforcing bar 36 protruding from the joint 19 is inserted into the sleeve 32 on the joint 19 side and joined. The beam 20 is supported by a support 38 as necessary.

Finally, as shown in FIG. 4 (B), the upper-floor column 14U with the connecting rebar 42U protruding from the lower surface is moved downward (in the direction of arrow DV). Thereby, the connecting rebar 42U of the column 14U is penetrated into the vertical through hole 44 of the beam 18, and is inserted into the sleeve 32 of the column 14 and joined.
In the column beam joint described above, grout is injected into the joints, the through holes 40 and 44, and the sleeves 30 and 32, or press-fitted and fixed.
The column beam frame 28 is constructed by repeating the above steps in the X-axis direction and the Y-axis direction orthogonal to the X-axis.

  As described above, according to the present embodiment, the connection reinforcing bar 46 protruding from the beam 18 is inserted into the through hole 40 formed in the joint portion 17 of the column 16, and the column 16 and the beam 18 are joined. The In addition, the connecting rebar 42U protruding from the upper column 14U is inserted into the through hole 44 formed in the joint portion 19 of the beam 18, the column 14 and the beam 18 are joined, and the connection protruding from the beam 18 is connected. The beam 18 and the beam 20 are joined by the reinforcing bar 36.

Thereby, the joint portions 17 and 19 can be dispersed in the columns 16 and the beams 18. At this time, the joining direction of the connecting reinforcing bars 46 penetrating the joint portion 17 and the joining direction of the connecting reinforcing bars 42U penetrating the joint portion 19 can be made different in the vertical direction and the lateral direction, respectively. Further, the configurations of the columns 16 and 14 and the beams 18 and 20 can be made different from each other.
As a result, the column beam frame 10 can be easily adapted to various frame types and construction methods.

Further, conventionally, as shown in, for example, Patent Document 1, any precast (PCa) beam cannot be placed on a PCa column, and all of the beams are not fixed until the reinforcing bars are fixed. It was necessary to temporarily hold the beam made of PCa by a support work or the like. For this reason, many support 38 which is a member for temporary holding was required.
On the other hand, in this embodiment, a part of the beam made of PCa can be placed on the column made of PCa, and the number of supports 38 can be reduced as compared with the conventional case.

(Second Embodiment)
A construction method of the column beam frame 50 according to the second embodiment of the present invention will be described with reference to FIGS. 5 and 6. The column beam frame 50 has a configuration in which the beam 52 and the beam 54 are different from the column beam frame 10 according to the first embodiment. The difference will be mainly described.
FIG. 5 is a cross-sectional view of the column beam frame 50 constructed by the construction method according to the present embodiment as viewed from the front, and FIGS. 6A and 6B show each construction stage.

The column beam frame 50 includes a column beam frame 26 located at an end, and a column beam frame 51 constructed following the column beam frame 26. The column beam frame 51 is constructed by repeating a standardized minimum unit column beam frame 48 (48A, 48B,...) As many times as necessary.
The column beam frame 48 (48A, 48B,...) Has the same configuration, and will be described as the column beam frame 48 hereinafter.

As shown in FIG. 6A, first, the column 16 is built, and the beam 52 made of PCa and the column 16 are joined. At this time, the beam 52 is moved and joined in the direction of arrow HV (lateral direction) while being placed on the column 14.
Here, the beam 52 has a beam length S for one span, and a joint portion 53 is integrally formed at one end. A through hole (first through hole) 44 is formed in the joint portion 53 of the beam 52 in the vertical direction, and a sleeve 32 is embedded in a side surface of the beam 52 on the column 54 side.

  As a result, the connecting rebar 46 passes through the through hole 40 of the column 16 and the tip is inserted into the sleeve 32 of the beam 24 and joined. At this time, the beam 52 is supported by the support 38 as necessary. In a state where the beam 52 is joined to the column 16, the joint portion 53 is placed on the upper surface of the column 14, and the positions of the through hole 44 and the sleeve 30 coincide with each other in the vertical direction.

  Next, the beam (first beam) 54 made of PCa is moved in the lateral direction (arrow H direction) and attached to the joint portion 53. Here, the beam 54 has a beam length S for one span, and the connecting reinforcing bar 36 protrudes from the end portion on the side of the joint portion 53. A sleeve 32 is embedded at the other end. The beam 54 is supported by the support 38 as necessary.

Next, as shown in FIG. 6B, the upper-floor column 14U with the connecting reinforcing bars 42U protruding from the lower surface is moved downward (in the direction of arrow D). Thereby, the connecting rebar 42U passes through the vertical through hole 44 of the beam 52 and is joined to the sleeve 32 of the column 14.
The column beam joint described above is fixed by injecting grout into the joints, the through holes 40 and 44, and the sleeves 30 and 32, or by press-fitting and filling them. Other steps are the same as those in the first embodiment, and a description thereof will be omitted.

  According to the present embodiment, the connection reinforcing bar 46 protruding from the beam 52 is inserted into the through hole 40 formed in the joint portion 17 of the column 16, and the column 16 and the beam 52 are joined. Further, the connecting rebar 42U protruding from the column 14U on the upper floor is inserted into the through hole 44 formed in the joint portion of the beam 52, and the column 14 and the beam 52 are joined. Further, the beam 52 and the beam 54 are joined by the connection reinforcing bar 36 protruding from the beam 54.

Thereby, the joints 17 and 53 can be dispersed in the column 16 and the beam 52. At this time, the joining direction of the connecting reinforcing bar 46 penetrating the joint part 17 and the joining direction of the connecting reinforcing bar 42U penetrating the joint part 53 can be made different in the vertical direction and the lateral direction, respectively. Moreover, the structure of the pillar 16 and the pillar 14, and the beam 52 and the beam 54 can each be varied.
As a result, the column beam frame 50 can be easily adapted to various frame types and construction methods.

(Third embodiment)
A construction method of the column beam frame 60 according to the third embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a cross-sectional view of the column beam frame 60 constructed by the construction method according to the present embodiment as viewed from the front, and FIGS. 8 and 9 are diagrams showing each construction stage.

  As shown in FIG. 7, the column beam frame 60 is constructed between the column beam frame 26 at the end, the column beam frame 68 in which the column beam frame 62 is repeatedly constructed, and the column beam frame 62 and the column beam frame 6. The column beam frame 66 is provided. The description will focus on the differences from the column beam frame 10 according to the first embodiment.

First, a method for constructing the column beam frame 66 will be described.
As shown in FIG. 8A, a PCa column (second column) 16 is built next to the beam 24 and on the PCa column 16D. In the state where the column 16 is built, the through hole (first lateral through hole) 40 of the joint portion 17 is aligned with the sleeve 32 of the beam 24 in the lateral direction.

Subsequently, the beam 64 is moved in the lateral direction (arrow HV direction), and the beam 64 is joined to the column 16.
Here, the beam 64 has a beam length S corresponding to one span, and the connection rebar 36 protrudes from both ends. The connection rebar 36 passes through the through hole 40 of the column 16 and the sleeve 32 of the beam 24. And join. At this time, the beam 64 is supported by the support 38 as necessary.
Thereby, the column beam frame 66 is constructed.

Next, a method for constructing the column beam frame 62 will be described.
As shown in FIG. 8B, first, the column 78 is moved in the lateral direction (arrow HV direction). At this time, the connecting rebar 36 is passed through the through hole 40, and after the movement, joined to the PCa column 78D on the lower floor.
Here, the column 78 has a column length H corresponding to the floor height, and a joint portion 79 is integrally formed at the upper end. A through hole 40 is formed in the joint portion 79 in the lateral direction, and a sleeve 80 is movably attached to a lower end portion of the column 78. A sleeve receiving portion 82 is provided at the upper end portion.

Here, a method of joining the pillar 78 and the pillar 78D will be described.
As shown in FIG. 9A, an upper column joint 100 is provided at the lower end of the column 78. The upper column joint 100 has a protective tube 84, and the protective tube 84 is embedded with the lower end opened to the lower end of the column 78. The protective tube 84 is embedded around the column reinforcement 88 at a predetermined depth in the direction of the column reinforcement 88, and a space is formed inside the protection tube 84. A sleeve 80 is movably inserted into the space inside the protective tube 84. The column reinforcement 88 has a length that does not protrude from the lower end of the column 78. Further, the sleeve 80 is suspended in a space by a hanging strap 92 so as not to drop due to gravity.

On the other hand, a lower column joint 102 is provided at the upper end of the column 78D. The lower column joint 102 has a protective tube 86, and the protective tube 86 is embedded with the upper end opened to the upper end of the column 78D. The protective tube 86 is embedded around a column reinforcing bar 88 that faces the protective tube 84. Further, the protective tube 86 is embedded in the direction of the column reinforcement 88 shallower than the protective tube 84. The protective tube 86 has a larger diameter than the sleeve 80, and a space is formed inside the protective tube 86. Further, the column reinforcement 88 has a length that does not protrude from the upper end of the column 78D.
The sleeve 80 is formed longer than the embedding depth of the protective tube 86.

  Thereby, the pillar 78 can be moved to a horizontal direction (arrow HV direction), and can be built on the pillar 78D. When the column 78 is moved to the built-in position, the column reinforcement 88 of the column 78 and the column reinforcement 88 of the column 78D, and the protection tube 84 and the protection tube 86 are respectively arranged in the vertical direction.

  Next, as shown in FIG. 9 (B), when the built-in position of the pillar 78 is determined, the hanging strap 92 is cut. Thereby, the sleeve 80 falls to the lower end part of the protective tube 86 of the pillar 78D. As a result, the sleeve 80 is disposed at a position that surrounds the end of the column reinforcing bar 88 of the column 78 and the column 78D and surrounds the periphery.

  Finally, as shown in FIG. 9C, the joint 91 is closed with a sealing material 94, and a grout 96 is filled into the space using the opening 90. Thereby, the column reinforcement 88 and the protective tubes 84 and 86 are integrated, and the column 78 and the column 78D are joined.

  Subsequently, as shown in FIG. 4A, the beam 20 is moved in the lateral direction (arrow H direction) and attached to the joint portion 79. At this time, the connection reinforcing bar 36 protruding from the beam 64 is joined to the sleeve 32 of the beam 20 through the through hole 40 of the column 78. The beam 20 is supported by a support 38 as necessary.

Next, as shown in FIG. 7, the pillar 16 is built next to the pillar 78. In the state in which the column 16 is built, the through hole 40 of the joint portion 17 is aligned with the sleeve 32 of the beam 20 in the lateral direction.
Next, the beam 64 is moved in the lateral direction, and the connecting rebar 36 is passed through the through hole 40 of the column 16 and joined to the sleeve 32 of the beam 20.
The column beam frame 68 is constructed by repeating the above steps in the X-axis direction and the Y-axis direction orthogonal to the X-axis.

  As described above, according to the present embodiment, the connection reinforcing bar 36 protruding from the beam 64 arranged in advance is inserted into the through hole 40 formed in the joint portion 79 of the column 78, and the column 78 and the beam 20 are joined. Further, the connecting reinforcing bar 36 protruding from the beam 64 passes through the through hole 40 formed in the joint portion 17 of the column 16 and is joined to the beam 20, and the column 16 and the beam 20, and the beam 20 and the beam 64. Are joined.

Thereby, although both the joint parts 17 and 79 are provided in the pillar 16 and the pillar 78, the joining direction of the connecting reinforcing bar 36 penetrating the joint parts 17 and 79 is the right direction and the left direction in the front view. Each can be different. Further, the configurations of the columns 16 and 78 and the beams 20 and 64 can be made different from each other.
As a result, the column beam frame 60 can be easily adapted to various frame types and construction methods.

(Fourth embodiment)
The construction method of the column beam frame 70 according to the fourth embodiment of the present invention will be described with reference to FIGS. FIG. 10 is a cross-sectional view seen from the front showing the column beam frame 70 constructed by the construction method according to this embodiment, and FIGS. 11 and 12 are diagrams showing each construction stage.

  As shown in FIG. 10, the column beam frame 70 includes a column beam frame 26 constructed at the end, a column beam frame 72 in which the column beam frame 71 is repeatedly constructed, and the column beam frame 72 and the column beam frame 26. And a column beam frame 78 constructed therebetween. The column beam frame 26 is the same as the column beam frame 26 of the column beam frame 60 according to the third embodiment, and a description thereof will be omitted. The column beam frame 78 and 71 will be mainly described.

First, the construction method of the column beam frame 78 will be described.
As shown in FIG. 11A, the pillar 16 is next to the beam 24 and is built on the pillar 16D on the lower floor. In the state where the column 16 is built, the through hole 40 of the joint portion 17 is aligned with the sleeve 32 of the beam 24 in the lateral direction.

Subsequently, the beam 76 made of PCa is moved in the horizontal direction (arrow HV direction), and the beam 76 and the column 16 are joined. Here, the beam 76 has a beam length S for one span, the connection reinforcing bar 36 projects from one end, and the sleeve 32 is embedded in the other end. A connecting rebar 36 passes through the through hole 40 of the joint 17 and is inserted into the sleeve 32 of the beam 24 and joined. At this time, the beam 64 is supported by the support 38 as necessary.
Thereby, the column beam frame 78 is constructed.

Then, the construction method of the column beam frame 71 is demonstrated.
As shown in FIG. 11B, first, the PCa column 74 is moved in the horizontal direction (arrow HV direction) and joined to the PCa column 74D on the lower floor.
Here, the column 74 has a column length H corresponding to the floor height, and a joint portion 75 is integrally formed at the upper end. An upper column joint 100 is attached to the lower end portion of the column 74, and a lower column joint 102 is provided to the upper end portion of the column 74. Connection reinforcing bars 98 protrude from both side surfaces of the column 74. In addition, about the joining method of the pillar 74 and pillar 74D using the top pillar coupling 100 and the top pillar joint 100, it is the same as 3rd Embodiment, and description is abbreviate | omitted.

  Next, as shown in FIG. 12A, the beam 20 is moved in the lateral direction (arrow H direction) and attached to the joint portion 75. At this time, the connection reinforcing bar 98 protruding from the column 74 is inserted and joined to the sleeve 32 of the beam 20. The beam 20 is supported by a support 38 as necessary.

Next, as shown in FIG. 12B, the pillar 16 is built next to the pillar 74. In the column 16, the joint portion 17 is integrally formed at the upper end portion, and the through hole 40 of the joint portion 17 is aligned with the sleeve 32 of the beam 20 in the lateral direction in the built-in state. .
Next, the beam 76 is moved laterally and joined to the column 16. At this time, the connecting reinforcing bar 36 of the beam 76 passes through the through hole 40 and is inserted into the sleeve 32 of the beam 20 and joined.
The column beam frame 72 is constructed by repeating the above steps in the X-axis direction and the Y-axis direction orthogonal to the X-axis. Others are the same as 3rd Embodiment, and description is abbreviate | omitted.

  As described above, according to this embodiment, the connecting reinforcing bar 98 protruding from the joint portion 75 of the column 74 is joined to the sleeve 32 of the beam 20, and the column 74 and the beam 20 are joined. Further, the connecting reinforcing bar 36 protruding from the beam 76 passes through the through hole 40 formed in the column 16 and is joined to the beam 20, and the column 16 and the beam 20, and the beam 20 and the beam 76 are joined.

Thereby, although the joint parts 17 and 75 are both provided in the pillar 16 and the pillar 78, the bar arrangement method of the connection reinforcing bars 36 and 98 in the joint parts 17 and 75 can be varied, respectively. Further, the configurations of the columns 16 and 78 and the beams 20 and 76 can be made different from each other.
As a result, the column beam frame 70 can be easily adapted to various frame types and construction methods.

(Fifth embodiment)
A method for constructing the column beam frame 80 according to the fifth embodiment of the present invention will be described with reference to FIGS. Here, FIG. 13 is a cross-sectional view of the column beam frame 80 constructed by the construction method according to the present embodiment as viewed from the front, and FIGS. 14A and 14B are diagrams showing the construction stage. It is.

As shown in FIG. 13, the column beam frame 80 is constructed between the column beam frame 26 at the end, the column beam frame 82 in which the column beam frame 81 is repeatedly constructed, and the column beam frame 82 and the column beam frame 26. The column beam frame 78 is provided. The difference from the column beam frame 60 according to the fourth embodiment will be mainly described.
The method for constructing the column beam frames 26 and 78 is the same as that of the column beam frame 60 according to the fourth embodiment, and a description thereof will be omitted. The method for constructing the column beam frame 81 will be described.

  First, as shown in FIG. 14A, the pillar 16 is built next to the beam 24 and on the lower floor pillar 16D. A joint portion 17 is integrally formed on the top of the column 16, and a through hole 40 is formed in the joint portion 17. The through hole 40 is aligned with the sleeve 32 of the beam 24 in the lateral direction in a state where the beam 16 is built.

  Next, as shown in FIG. 14B, the connecting reinforcing bars 99 are inserted into the through holes 40. The connecting reinforcing bar 99 has a length L that allows the through hole 40 to pass therethrough and allows both ends to be inserted into the sleeve 32. The connecting rebar 99 is moved in the lateral direction (arrow HV direction) and penetrates the through hole 40 of the column 16 and joined to the sleeve 32 of the beam 24. At this time, one end is protruded from the joint portion 17.

  Subsequently, the beam 20 is moved in the lateral direction, and the connection reinforcing bar 99 is inserted into the sleeve 32 of the beam 20 and joined. Next, as shown in FIG. 13, the pillar 16 is built adjacent to the pillar 16. In the state where the column 16 is built, the through hole 40 of the joint portion 17 is aligned with the sleeve 32 of the beam 20 in the lateral direction.

Next, the second beam 76 is moved in the lateral direction, and the connecting reinforcing bar 36 protruding from the beam 76 is inserted into the sleeve 32 of the beam 20 through the through hole 40 of the column 16 and joined.
The column beam frame 82 is constructed by repeating the above steps in the X-axis direction and the Y-axis direction orthogonal to the X-axis. Others are the same as those in the fourth embodiment, and a description thereof will be omitted.

  As described above, according to the present embodiment, the beam connecting rebar 99 for connecting the beam is inserted into the through hole 40 formed in the joint portion 17 of the column 16 and the column 16 and the beam 20 are joined. . Further, the beam reinforcing bar protruding from the beam 76 passes through the through hole 40 formed in the joint portion 17 of the column 16 and is joined to the beam 20, and the column 16 and the beam 20, and the beam 20 and the beam 76 are connected. Be joined.

Thereby, all the joint parts 17 are provided in the same pillar 16, and become the same structure. However, the bar arrangement method of the connection reinforcing bars 36 and 99 in the joint portion 17 can be varied. Further, the configurations of the beam 20 and the beam 76 can be made different from each other.
As a result, the column beam frame 82 can be easily adapted to various frame types and construction methods.

10, 50, 60, 70, 80 Column beam frame 12, 48, 62, 71, 81 Column beam frame (column beam frame repeatedly constructed)
14 pillars (1st pillar)
14D Lower floor pillar 14U Upper floor pillar 16 pillar (second pillar)
16D Lower floor pillar 17, 19 Joint part 18 Beam (first beam)
20 beams (second beam)
30 Sleeve (first vertical joint member)
32 Sleeve (first horizontal joint member)
34 Connection reinforcement (column reinforcement)
40 Through hole (first horizontal through hole)
42 Connecting reinforcing bars (column reinforcing bars)
42U Lower level connecting bar (column reinforcing bar)
44 Through hole (first vertical through hole)
46 Connection reinforcement (beam reinforcement)
99 Connection reinforcement (beam connection reinforcement)
S Distance for one span H Height for floor height HV Movement direction (horizontal direction)
DV movement direction (vertical direction)

Claims (5)

The process of building the first pillar made of precast concrete in which the first longitudinal joint member is embedded in the vertical direction on the upper surface without the joint portion;
Building a second column made of precast concrete having a joint portion in which a first lateral through hole is formed in the lateral direction, next to the first column;
A precast concrete first beam having a joint portion in which a first vertical through hole is formed in the vertical direction and a beam length for one span, with beam reinforcing bars protruding from both ends, is moved in the horizontal direction, Joining beam rebar through the first lateral through hole of the second pillar;
A second beam made of precast concrete having a beam length of one span and having a first horizontal joint member embedded in both ends in the horizontal direction is moved in the horizontal direction, and the first beam is moved to the first horizontal joint member. Inserting and joining the beam reinforcing bars;
The upper column with the column reinforcing bar protruding from the lower surface is moved downward, the column reinforcing bar passes through the first vertical through hole of the first beam, and the first vertical joint member of the first column. Joining, and
A method for constructing a column beam frame having The process of building the first pillar made of precast concrete in which the first longitudinal joint member is embedded in the vertical direction on the upper surface without the joint portion;
Building a second column made of precast concrete having a joint portion in which a first lateral through hole is formed in the lateral direction, next to the first column;
It has a joint portion in which a first vertical through hole is formed in the longitudinal direction and a beam length for one span, and a first transverse joint member is embedded in the transverse direction at the end portion on the joint portion side, and the second A step of moving the first beam made of precast concrete from which the beam reinforcing bar protrudes from the column side end portion in the lateral direction, and joining the beam reinforcing bar through the first horizontal through hole of the second column; ,
A second beam made of precast concrete having a beam length of one span and having a beam reinforcing bar protruding from the end on the first beam side is laterally moved, and the beam is applied to the first transverse joint member of the first beam. Inserting the reinforcing bars and joining them,
The upper column with the column reinforcing bar protruding from the lower surface is moved downward, the column reinforcing bar passes through the first vertical through hole of the first beam, and the first vertical joint member of the first column. Joining, and
A method for constructing a column beam frame having A first column made of precast concrete having a joint portion in which a first horizontal through hole is formed in the horizontal direction is passed in a horizontal direction while passing a beam reinforcing bar protruding from a previously arranged beam through the first through hole. The process of moving to and building,
A first beam made of precast concrete having a beam length corresponding to one span and having a first horizontal joint member embedded in both ends at a lateral direction, and a beam reinforcing bar projecting from the first lateral through hole; Joining the first transverse joint member;
Building a second column made of precast concrete having a joint portion formed with a second lateral through hole in the lateral direction next to the first column;
A second beam made of precast concrete having a beam length of one span and protruding from both ends is moved in the lateral direction, and the beam reinforcing bar passes through the second lateral through-hole and the first Joining the first transverse joint member of the beam;
A method for constructing a column beam frame having The first column made of precast concrete having a joint part in which a beam reinforcing bar protrudes laterally from both sides is moved in the lateral direction to the lateral joint member embedded in the end of the beam arranged in advance. The process of building while inserting beam reinforcement,
A first beam made of precast concrete having a beam length for one span and having a first transverse joint member embedded in both ends in a lateral direction is moved laterally, and the beam reinforcing bar protruding from the first beam and the first beam Joining the horizontal joint members;
Building a second column made of precast concrete having a joint portion in which a first lateral through hole is formed in the lateral direction, next to the first column;
A second beam made of precast concrete having a beam length of one span and protruding from the end on the second column side is moved laterally, and the beam rebar is moved to the second column of the second column. A step of passing through one horizontal through hole and joining to the first horizontal joint member of the first beam;
A method for constructing a column beam frame having The first end of a precast concrete having a joint portion in which a first lateral through hole is formed in the lateral direction is built, and a beam connecting reinforcing bar is passed through the first lateral through hole, and the end of the beam arranged in advance Inserting the beam rebar into the transverse joint member embedded in
The beam connecting rebar which has a beam length of one span and is laterally moved by a first beam made of precast concrete in which a first horizontal joint member is embedded in both ends in a lateral direction, and protrudes from the first lateral through hole Inserting and joining the first transverse joint member;
Building a second column made of precast concrete having a joint portion formed with a second lateral through hole in the lateral direction next to the first column;
A second beam made of precast concrete having a beam length of one span and protruding from the end on the second column side is moved laterally, and the beam rebar is moved to the second column of the second column. A step of passing through two horizontal through holes and joining to the first horizontal joint member of the first beam;
A method for constructing a column beam frame having

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