JP5620062B2 - Column wall structure and building having column wall structure - Google Patents

Description

The present invention relates to a column wall structure and a building having a column wall structure .

  Conventionally, a wall member made of precast concrete is known (for example, Patent Document 1). This wall member is arranged between the upper and lower steel beams, and the vertical rebars protruding from the upper and lower surfaces of the wall member are passed through the flanges of the upper and lower steel beams and tightened with nuts to It is joined to the beam. Patent Document 2 proposes a wall member made of precast concrete that is pressure-bonded to upper and lower precast concrete beams with PC steel. The wall member is disposed with a gap between the wall and the column, and the gap is filled with mortar, concrete, or the like to join the column. Further, Patent Document 3 proposes a wall member made of precast concrete in which a beam type is integrated with an upper part and a lower part of the wall member. This wall member is disposed adjacent to the column and is pressure-bonded to the column with a PC steel material. Constructing a wall with such precast wall members is advantageous because it eliminates formwork and concrete work on site.

  However, the wall members of Patent Documents 2 and 3 need to be joined to the pillars in the field, which is not only troublesome for construction, but also there is a concern that sufficient joining strength between the wall members and the pillars cannot be secured. The

Japanese Patent Laid-Open No. 5-31922 JP 2005-90107 A Japanese Utility Model Publication No. 6-67619

  In view of the above facts, the present invention aims to reduce the labor of joining the column portion made of precast concrete and the wall portion and to secure the joining strength between the column portion and the wall portion.

The column wall structure according to claim 1 has a column portion made of precast concrete, a wall portion of precast concrete integrated with the column portion, and at least a through hole formed in the column portion, A plurality of pillar wall members that are stacked to form a one-level wall surface, a spacer that is disposed between the upper and lower pillar portions, and that forms a joint space between the pillar wall members that form the wall surface, and the joint space And a vertical steel material that penetrates the through holes in the vertical direction and joins the adjacent column wall members.

  According to said structure, the pillar wall member is provided with the pillar part made from precast concrete, and the wall part made from precast concrete. The pillar part and the wall part are integrated, and at least the pillar part is formed with a through hole through which the vertical steel material penetrates in the vertical direction.

Further, a plurality of column wall members are stacked to form a one-level wall surface . Here, spacers are arranged between the column portions of the upper and lower column wall members. By this spacer, a joint space is formed between a plurality of column wall members that form a one-layer wall surface. This joint space is filled with a curing material. Furthermore, the adjacent column wall member is joined by the vertical steel material penetrated to the up-down direction at each of the through-hole of the column part.

The column wall structure according to claim 2, a joint portion made of precast concrete, a beam portion made of precast concrete integrated with the joint portion, an insertion hole formed at least in the joint portion, A precast concrete column portion, a precast concrete wall portion integrated with the column portion, and at least a through hole formed in the column portion, and the top of the beam member A plurality of column wall members stacked vertically, and a vertical steel member that is vertically penetrated through each of the insertion hole and the through hole and joins the beam member and the plurality of column wall members.

According to said structure, the beam member is provided with the joint part made from precast concrete, and the beam part made from precast concrete. The joint portion and the beam portion are integrated, and an insertion hole is formed at least in the joint portion.

  Moreover, the column wall member is provided with the column part made from precast concrete, and the wall part made from precast concrete. The pillar part and the wall part are integrated, and at least the pillar part is formed with a through hole through which the vertical steel material penetrates in the vertical direction. A plurality of the column wall members are stacked on the beam member. And the beam member and the some column wall member are joined by the vertical steel material penetrated in the up-down direction to each of the insertion hole and through-hole of a pillar part.

The column wall structure according to claim 3 has a column part made of precast concrete, a wall part of precast concrete integrated with the column part, and a through hole formed in at least the column part, A plurality of stacked column wall members, and a vertical steel member that vertically penetrates each of the through holes and joins the adjacent column wall members, the two column wall members facing each other in the lateral direction. disposed Te, the side surface of the pillar portion of one of said wall portion provided on a side surface of the pillar portion of the pillar wall member has an end face that is facing the end face of the wall portion other of the columnar wall member And the wall portion provided on the wall .

  According to said structure, the two column wall members are arrange | positioned facing. Here, the wall part provided in the side surface of one pillar part, and the wall part which is provided in the side face of the other pillar part, and has an end surface facing the end surface of one pillar part are joined. That is, the two column wall members are arranged so that the end surfaces of the wall portions provided on the side surfaces of the respective column portions face each other, and these wall portions are joined to each other.

  By joining the two column wall members in this way to construct the column and wall, the column wall member can be miniaturized, so that lifting, transportation and the like are facilitated, and workability is improved.

The column wall structure according to claim 4 is the column wall structure according to claim 3 , wherein the column wall structure is provided in the insertion portion provided in the end surface of one of the wall portions facing each other and in the end surface of the other wall portion. A hollow tube stored in the storage portion is pulled out from the storage portion, inserted into the insertion portion, and fixedly coupled.

  According to said structure, the insertion part is provided in the end surface of one wall part which faces. Moreover, the accommodating part is provided in the end surface of the other wall part which faces. A hollow tube is housed in the housing portion, and this hollow tube is pulled out from the housing portion, inserted into the insertion portion, and fixedly coupled.

  Here, since the hollow tube can be stored in the storage portion, the hollow tube does not become an obstacle when the end surfaces of the wall portions face each other. That is, when the end surfaces of the wall portions face each other by storing the hollow tube in the storage portion so as not to protrude from the end surface of the wall portion, for example, the other column wall member is opposed to one column wall member. Can be moved relative to each other in the vertical direction or in the horizontal direction so that the end faces of the wall portions face each other. Therefore, there is no restriction on the moving direction of the column wall member, and the degree of freedom in construction is improved.

  Moreover, what is necessary is just to provide only the gap | interval (for example, 5-25 mm) of the grade which absorbs a construction error in the junction part of a wall part and a wall part by fixingly coupling an insertion part and a hollow tube, Conventional large-scale formwork and concrete work are no longer necessary, improving workability and shortening the work period.

The column wall structure according to claim 5 is the column wall structure according to claim 3 , wherein the horizontal reinforcing bar protrudes from the other wall portion into the insertion portion provided on the end surface of the one wall portion facing each other. Is inserted and fixed.

  According to said structure, the insertion part is provided in the end surface of one wall part which faces, and the horizontal reinforcing bar protruded from the end surface of the other wall part which faces is inserted in this insertion part, and is fixedly coupled. ing.

  Here, with respect to the wall portion provided with the insertion portion, by moving the wall portion from which the horizontal reinforcing bar protrudes relatively in the lateral direction, the horizontal reinforcing bar is inserted into the insertion portion. Are fixedly coupled. Therefore, it is only necessary to provide a gap (for example, 5 to 25 mm) enough to absorb the construction error at the joint between the wall and the wall, and the conventional large-scale formwork and concrete work are not required. It is possible to improve the workability and shorten the construction period.

The column wall structure according to claim 6 is the column wall structure according to claim 3 , wherein an insertion portion is provided at an end surface of the wall portion facing each other, and a reinforcing bar is inserted into each of the insertion portions and fixedly coupled. ing.

  According to said structure, the insertion part is each provided in the end surface of the wall part which faces. A rebar is inserted into each of these insertion portions, and the insertion portion and the rebar are fixedly coupled.

  Here, a reinforcing bar is inserted into one of the insertion portions provided on the facing wall. Then, by moving the other wall portion relative to one wall portion in the lateral direction, reinforcing bars are also inserted into the insertion portion of the other wall portion, and these insertion portions and the reinforcing bar are fixedly coupled. Is done. Therefore, it is only necessary to provide a gap (for example, 5 to 25 mm) enough to absorb the construction error at the joint between the wall and the wall, and the conventional large-scale formwork and concrete work are not required. It is possible to improve the workability and shorten the construction period.

The column wall structure according to claim 7 is the column wall structure according to any one of claims 1 to 6, wherein the vertical steel material is made of a PC steel material, and the PC steel material is passed through each of the through holes of the column wall member, The columnar member is crimped and joined by tensioning the PC steel material.
According to said structure, the vertical rebar is made into PC steel material. The column wall member is pressure-bonded by passing the PC steel material through each of the stacked through holes of the column wall member and tensioning the PC steel material.
By crimping and joining the multi-stage column wall members with the PC steel material thus tensioned, prestress is introduced into each column wall member and strengthened, and the bonding strength between adjacent column wall members increases. . Therefore, the rigidity and proof stress of the column wall member can be increased. As the PC steel material, a bond type, an after bond type, and an unbond type can be applied.
The column wall structure according to claim 8 has a column portion made of precast concrete, a wall portion of precast concrete integrated with the column portion, and at least a through hole formed in the column portion, A plurality of stacked column wall members, a spacer that is disposed between the upper and lower column portions, and forms joint spaces between the column wall members, a hardener filled in the joint spaces, and the through holes A vertical steel material that penetrates in the vertical direction and joins the adjacent column wall members, and provides a gap between the wall portions of the column wall members adjacent in the vertical direction. Are connected by steel dampers.
The column wall structure according to claim 9 is the column wall structure according to any one of claims 2 to 7, wherein a gap is provided between the wall portions of the column wall members adjacent in the vertical direction. The wall portions are connected to each other by a steel damper.

  According to said structure, the clearance gap is provided between the wall parts of the column wall member adjacent to an up-down direction, and these wall parts are connected with the steel material damper. By providing the steel damper in this way, when the adjacent column wall member is relatively displaced, the steel damper is deformed and absorbs vibration energy. Therefore, the vibration of the building is reduced, and the living performance and the earthquake resistance can be improved.

Hashirakabe structure according to claim 10, in Hashirakabe structure according to claim 8 or claim 9, wherein the steel damper is a steel plate or dowel reinforcement erected the gap.

  According to said structure, the steel material damper is made into the steel plate or dowel reinforcement which stood between wall parts. When adjacent column wall members are relatively displaced, these steel plates or dowel reinforcing bars are deformed to absorb vibration energy. Therefore, the vibration of the building is reduced, and the living performance and the earthquake resistance can be improved.

Building according to claim 11 has a Hashirakabe structure according to any one of claims 1-10.

According to the above configuration, to have a Hashirakabe structure according to any one of claim 1 to 10, it is possible to construct a building workability is improved.

  Since this invention set it as said structure, while reducing the effort of joining operation | work of the column part made from precast concrete, and a wall part, the joint strength of a column part and a wall part can be ensured.

It is a schematic front view which shows the column wall structure which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the column wall member and beam member which concern on the 1st Embodiment of this invention. It is a front view showing the pillar wall structure concerning a 1st embodiment of the present invention. (A) And (B) is a front view which shows the modification of the column wall structure which concerns on the 1st Embodiment of this invention. It is a front view which shows the modification of the column wall structure which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the column wall member which concerns on the 2nd Embodiment of this invention. (A) And (B) is an enlarged plan view which shows the junction part of the wall part which concerns on the 2nd Embodiment of this invention. (A) And (B) is a front view of the column wall structure which shows the example of the construction procedure of the column wall structure which concerns on the 2nd Embodiment of this invention. It is a front view which shows the column wall structure which concerns on the 2nd Embodiment of this invention. (A) And (B) is an enlarged front view which shows the modification of the junction part of the wall part which concerns on the 2nd Embodiment of this invention. (A) And (B) is an enlarged side view which shows the modification of the wall part which concerns on the 2nd Embodiment of this invention. (A) And (B) is an enlarged plan view which shows the modification of the junction part of the wall part which concerns on the 2nd Embodiment of this invention. (A) And (B) is an enlarged plan view which shows the modification of the junction part of the wall part which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the column wall structure which concerns on the 3rd Embodiment of this invention. It is a front view which shows the column wall structure which concerns on the 3rd Embodiment of this invention. It is a front view which shows the modification of the column wall structure which concerns on the 3rd Embodiment of this invention. It is a front view which shows the modification of the column wall structure which concerns on embodiment of this invention. It is a schematic perspective view which shows the modification of the column wall member which concerns on embodiment of this invention. It is a schematic perspective view which shows the modification of the column wall member which concerns on embodiment of this invention. (A) is a top view which shows the formwork which concerns on embodiment of this invention, (B) is the 1-1 sectional view taken on the line of FIG. 20 (A), (C) is 2 of FIG. 20 (A). FIG. It is a perspective view which shows the column wall member manufactured with the column wall member manufacturing method in embodiment of this invention. It is a perspective view which shows the column wall member manufactured with the column wall member manufacturing method in embodiment of this invention. These are top views which show the modification of the formwork which concerns on embodiment of this invention.

  Hereinafter, a column wall structure 10 according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a schematic configuration of the column wall structure 10, and FIG. 2 is an enlarged perspective view of the column wall member 12 and the beam member 20.

  As shown in FIG. 1, the pillar wall structure 10 includes a plurality (five in FIG. 1) of pillar wall members 12. These pillar wall members 12 are stacked and joined in a plurality of stages, and the pillar 16 and the wall 18 of the building 14 are configured. Further, the beam 22 of the building 14 is constituted by the beam members 20 arranged above and below the wall 18.

  Next, the configuration of the beam member 20 will be described.

  As shown in FIG. 2, the beam member 20 includes two joint portions 48 made of precast concrete (hereinafter referred to as “PCa”) and a beam portion 50 made of PCa provided between the joint portions 48. ing. The joint portion 48 and the beam portion 50 are manufactured integrally in a factory and are formed in an I shape in plan view. Further, the beam member 20 is provided with a horizontal reinforcing bar 60 (see FIG. 3) across the joint portion 48 and the beam portion 50.

As shown in FIGS. 2 and 3, insertion holes are formed in the lower surface 48 </ b> B of the joint portion 48 by four sheath tubes 52 (see FIG. 3) embedded in the four corners. In the sheath tube 52, one end of the column reinforcing bar 30 (longitudinal steel material) arranged in the vertical direction in the joint portion 48 is inserted so as not to protrude from the lower surface 48B. The other end of the column reinforcing bar 30 protrudes from the upper surface 48A of the joint portion 48 and is inserted into a sheath tube 28 embedded in the pillar portion 24 stacked on the joint portion 48 and fixedly coupled. Further, the column reinforcing bars 30 penetrating the sheath tube 28 are inserted into the sheath tube 52 embedded in the joint portion 48 of the beam member 20 stacked on the column wall member 12 and fixedly coupled. An injection hole 66 communicating with the inside of the sheath tube 52 is formed on the side surface 48 </ b> C of the joint portion 48, and the hardening material 34 is injected into the sheath tube 52 from the injection hole 66. Further, four cotters 54 are formed on the upper surface 48A of the joint portion 48 along the outer periphery thereof. These cotters 54 are filled with the curing material 34 at the time of joining with the column portion 24 of the adjacent column wall member 12 to transmit a shearing force.
Note that the cotter 54 is not always necessary, and can naturally be omitted when the shearing force can be transmitted by the dowel effect of the column reinforcing bar 30 or the frictional force of the interface between the adjacent column wall members 12. Further, in FIG. 3, the hoop lines of the column part 24 are omitted.

An insertion hole is formed in the lower surface 50B of the beam portion 50 extending from the side surface 48D of the joint portion 48 by a plurality of sheath tubes 56 embedded in the lower surface 50B. One end of a wall rebar 40 (longitudinal steel material) arranged in the beam portion 50 in the vertical direction is inserted into the sheath tube 56 so as not to protrude from the lower surface 50B. The other end of the wall reinforcing bar 40 protrudes from the upper surface 50A of the beam portion 50, and is inserted into the sheath tube 38 of the wall portion 26 stacked on the beam portion 50, and is fixedly coupled. The wall reinforcing bars 40 penetrating the sheath tube 38 are inserted into the sheath tube 56 embedded in the lower surface 50B of the beam portion 50 stacked on the column wall member 12, and are fixedly coupled. An injection hole 68 that communicates with the inside of the sheath tube 56 is formed in the side surface 50 </ b> C of the beam portion 50, and the hardening material 34 is injected into the sheath tube 56 from the injection hole 68. Further, four cotters 58 are formed on the upper surface 50A of the beam portion 50 with a gap in the horizontal direction. The cotter 58 is filled with the curing material 34 at the time of joining with the wall portion 26 of the adjacent column wall member 12 to transmit a shearing force.
Note that the cotter 58 is not always necessary, and can naturally be omitted when the shearing force can be transmitted due to the dowel effect of the wall reinforcing bar 40 or the frictional force of the interface between the adjacent column wall members 12.

  Next, the configuration of the column wall member 12 will be described.

  As shown in FIGS. 2 and 3, the pillar wall member 12 includes two pillar parts 24 made of PCa and a wall part 26 made of PCa provided between the pillar parts 24. The column part 24 and the wall part 26 are integrally manufactured in the factory, and are formed in an I shape in plan view. The column wall member 12 is provided with a horizontal reinforcing bar 46 (see FIG. 3) across the column part 24 and the wall part 26.

  Sheath tubes 28 are respectively embedded in the four corners of the column portion 24, and through holes extending in the vertical direction are formed by the sheath tubes 28. By the column reinforcing bars 30 penetrating vertically through these through holes, the adjacent column portions 24 or the adjacent column portions 24 and the joint portion 48 are joined so as to transmit a shearing force, and the columns 16 (see FIG. 1). It becomes. An injection hole 36 communicating with the inside (through hole) of the sheath tube 28 is formed on the side surface 24C of the column portion, and the curing material 34 is injected from the injection hole 36, and the sheath tube 28 and the column reinforcing bar 30 are fixed. Combined. The sheath tube 28 is embedded so as not to protrude from the upper surface 24A and the lower surface 24B of the column part 24.

Four cotters 32 are provided along the outer periphery of the upper surface 24A of the column part 24, and four cotters are also provided along the outer periphery of the lower surface 24B of the column part 24 although not shown. ing. These cotters are filled with the curing material 34 when bonded to the adjacent joint portion 48 or the wall portion 26 to transmit a shearing force.
Note that the cotter 32 is not always necessary, and can naturally be omitted when the shearing force can be transmitted due to the dowel effect of the column reinforcing bar 30 or the frictional force of the interface between the adjacent column wall member 12 and the beam member 20.

A plurality of sheath tubes 38 are embedded in the wall portion 26 extending from the side surface 24D of the column portion 24, and a through-hole extending in the vertical direction is formed by the sheath tube 38. Adjacent wall portions 26 are joined by the wall reinforcing bars 40 penetrating vertically through the through-holes to form the walls 18 (see FIG. 1). An injection hole 44 communicating with the inside (through hole) of the sheath tube 38 is formed on the side surface 26 </ b> C of the wall portion 26, and the curing material 34 is injected from the injection hole 44, and the sheath tube 38 and the wall reinforcing bar 40 are injected. Are fixedly coupled.
Similar to the column portion 24, the sheath tube 38 is embedded so as not to protrude from the upper surface 26A and the lower surface 26B of the wall portion 26, and is also provided between the upper surface 26A and the lower surface 26B of the wall portion 26 in the horizontal direction. Four cotters 42 are formed with a gap.
Note that the cotter 42 is not necessarily required, and can naturally be omitted when the shearing force can be transmitted due to the dowel effect of the wall reinforcing bars 40 or the frictional force of the interface between the adjacent column wall members 12.

  Next, an example of a construction method for the column wall structure 10 will be described.

  First, as shown in FIG. 2, the column wall member 12 is lowered from above the beam member 20, and the column rebar 30 protruding from the upper surface 48 </ b> A of the joint portion 48 passes through the sheath tube 28 of the column portion 24. The wall rebar 40 protruding from the upper surface 50 </ b> A of the beam portion 50 is passed through the sheath tube 38 of the wall portion 26, and the column wall member 12 is placed on the beam member 20. At this time, a spacer 62 is disposed between the beam member 20 and the column wall member 12, and a joint space 64 of about 20 mm is formed between the beam member 20 and the column wall member 12. The joint space 64 absorbs manufacturing errors of the beam member 20 and the column wall member 12, and the horizontal level of the column wall member 12 is adjusted by adjusting the height of the spacer 62. The spacer 62 (joint space 64) can be omitted, but it is desirable to install it from the viewpoint of the workability described above.

Next, although not shown, a simple formwork such as an air hose is temporarily installed at the peripheral edge of the joint space 64 to seal the joint space 64. Next, the hardening material 34 is injected from the injection holes 36 and 44 provided in the side surface 24C of the column portion 24 of the column wall member 12 and the side surface 26C of the wall portion 26, and the sheath tubes 28 and 38 and the joint space 64 are injected. Is filled with a curing material 34. At this time, each cotter 32, 42, 54, 58 is also filled with the curing material 34. In addition, when sealing the joint space 64 with an air hose or the like, an injection hole may be provided in the peripheral portion of the joint space 64 and the curing material 34 may be injected into the joint space 64 from the injection hole.
The column reinforcement 30 and the wall reinforcement 40 are fixedly coupled to the sheath tubes 28 and 38 by the hardening material 34 filled in the sheath tubes 28 and 38, respectively. Next, after the curing material 34 is cured, a mold such as an air hose is removed. As the curing material 34, mortar, epoxy resin, or the like is used.

  Next, according to the same procedure as described above, a new column wall member 12 is stacked on the column wall member 12 via the spacer 62, and the sheath tube 28, 38 and the joint space 64 are filled with the curing material 34. By repeating this operation, the column wall members 12 are stacked in a plurality of stages (in the structure shown in FIGS. 1 and 3, five stages).

  Next, the beam member 20 is lowered from the top of the column wall member 12 at the uppermost level (the fifth level in the configuration shown in FIGS. 1 and 3), and the beam member 20 is placed on the column wall member 12. To do. At this time, one end of the column reinforcing bar 30 and the wall reinforcing bar 40 is inserted into the sheath pipes 52 and 56 embedded in the joint portion 48 of the beam member 20 and the lower surfaces 48B and 50B of the beam portion 50, respectively. Next, the hardening material 34 is injected from the injection holes 66 and 68 formed in the side surfaces 48C and 50C of the joint portion 48 and the beam portion 50, and the sheath tubes 52 and 56 are filled with the hardening material 34. As a result, the column reinforcing bars 30 and the wall reinforcing bars 40 are fixedly coupled to the sheath tubes 52 and 56, and the column reinforcing bars 30 and the wall reinforcing bars 40 of the adjacent beam members 20 are connected to each other via the sheath tubes 52 and 58. Connected.

  Next, the operation and effect of the column wall structure 10 according to the first embodiment will be described.

  In the column wall member 12 made of PCa, the wall portion 26 is integrated with the column portion 24. For this reason, the joining work of the column part 24 and the wall part 26 in the field becomes unnecessary, and workability improves. In addition, since the column wall member 12 is manufactured in the factory, the fixing strength of the horizontal reinforcing bars 46 arranged across the column part 24 and the wall part 26 is increased, and thus the bonding strength between the column part 24 and the wall part 26 is increased. It is possible to manufacture the column wall member 12 that is easy to secure and has improved quality. Therefore, compared with the case where the pillar part 24 and the wall part 26 are joined in the field, the mutual transmission of a shear force becomes favorable.

Moreover, in this embodiment, since the wall 18 was constructed by stacking a plurality of column wall members 12, the height of each column wall member 12 can be reduced, that is, the height relative to the width of the column wall member 12. The ratio (aspect ratio) of the thickness can be reduced, and the stability of the column wall member can be improved.
Here, when the wall 18 is constructed with a single PCa wall member as in the prior art (for example, Patent Document 1), the aspect ratio of the wall member becomes large, and the inclination of the wall member is prevented during installation. There was a need. On the other hand, in this embodiment, since the aspect ratio of the column wall member 12 per one can be reduced, the stability of the column wall member 12 is increased as compared with the conventional case. Therefore, the trouble of preventing the column wall member 12 from being tilted can be reduced. Moreover, since the column wall member 12 can be miniaturized, lifting, transportation and the like are facilitated, and workability is improved.

Further, the sheath tubes 28 and 38 embedded in each column wall member 12 are penetrated by the column rebar 30 and the wall rebar 40, and the sheath tubes 28 and 38 are filled with a hardening material 34, so that the sheath tubes 28 and 38 and By fixing and connecting the column reinforcing bars 30 and the wall reinforcing bars 40, the joining operation is simplified, the bonding strength between the adjacent column wall members 12 is increased, and the rigidity and proof strength of the columns 16 and the walls 18 are ensured. be able to. Also, the cotters 32 and 42 are provided on the upper surface 24A and the lower surface 24B of the column portion 24 and the upper surface 26A and the lower surface 26B of the wall portion 26, respectively. Can be made.
Note that, as described above, the cotters 32 and 42 are not necessarily required, and naturally the shear force can be transmitted by the dowel effect of the column reinforcement 30 and the wall reinforcement 40 or the frictional force of the interface between the adjacent column wall members 12. It can be omitted.

Furthermore, in the beam member 20 made of PCa, the beam portion 50 is integrated with the joint portion 48. For this reason, since the joining work of the joint part 48 and the beam part 50 in the field becomes unnecessary similarly to the column wall member 12, workability | operativity improves. In addition, since the beam member 20 is manufactured in the factory, the fixing strength of the horizontal reinforcing bar 60 arranged across the joint portion 48 and the beam portion 50 is increased. For example, the joint strength between the joint portion 48 and the beam portion 50 is increased. The beam member 20 that is easy to secure and improved in quality can be manufactured. Therefore, compared with the case where the joint part 48 and the beam part 50 are joined in the field, the mutual transmission of a shear force becomes favorable.
Note that, as described above, the cotters 54 and 58 are not necessarily required. Naturally, the shear force can be transmitted due to the dowel effect of the column reinforcement 30 and the wall reinforcement 40 or the frictional force of the interface between the adjacent column wall members 12. It can be omitted.

  Next, a modified example of the column wall structure 10 according to the first embodiment will be described.

  In the first embodiment, the column wall member 12 is stacked on the beam member 20 from which the column reinforcement 30 and the wall reinforcement 40 protrude from the upper surface 48A of the joint portion 48 and the upper surface 50A of the beam portion 50, and the column portion. The column rebar 30 and the wall rebar 40 are penetrated through the sheath tube 28 of 24 and the sheath tube 38 of the wall portion 26 (hereinafter referred to as “forward piercing method”). In this modification, a so-called reverse piercing method is used.

  Specifically, as shown in FIGS. 4A and 4B, insertion holes are formed in the upper surface 48A of the joint portion 48 of the beam member 21 by sheath tubes 52 embedded in the four corners. Has been. In the sheath tube 52, one end of the column reinforcing bar 30 arranged in the vertical direction in the joint portion 48 is inserted so that the upper surface 48A does not protrude. The other end of the column reinforcing bar 30 protrudes from the lower surface 48B of the joint portion 48 and penetrates the sheath tube 28 from the upper surface 24A of the column portion 24.

  Similar to the joint portion 48, insertion holes are formed in the upper surface 50A of the beam portion 50 by sheath tubes 56 embedded in the four corners thereof. One end of the wall reinforcing bar 40 arranged in the beam portion 50 in the vertical direction is inserted into the sheath tube 56 so as not to protrude from the upper surface 50A. The other end of the wall reinforcing bar 40 protrudes from the lower surface 50B of the beam portion 50 and penetrates the sheath tube 38 from the upper surface 26A of the wall portion 26. The column wall member 12 has the same configuration as that of the first embodiment.

  Next, the example of the construction method of this modification is demonstrated.

  As shown in FIG. 4A, first, a plurality of column wall members 12 are stacked on the beam member 21. Here, unlike the first embodiment (see FIG. 3), the column reinforcement 30 and the wall reinforcement 40 are not projected from the upper surface 48A of the joint portion 48 of the beam member 21 and the upper surface 50A of the beam portion 50. The column reinforcing bars 30 and the wall reinforcing bars 40 do not become obstacles, and the column wall member 12 can be moved on the beam member 21 or the column wall member 12 by moving in the horizontal direction or the horizontal direction (arrow A direction). it can. The column wall member 12 is placed on the beam member 21 or the column wall member 12 through the spacer 62.

  Next, as shown in FIGS. 4B and 5, after stacking a plurality of column wall members 12 (five steps in the configuration shown in FIG. 4B), the uppermost (fifth step) The beam member 21 is lowered from above the column wall member 12, and the beam member 21 is placed on the column wall member 12. At this time, the column rebar 30 and the wall rebar 40 protruding from the lower surface 48B of the joint portion 48 of the beam member 21 and the lower surface 50B of the beam portion 50 are connected to the column portion 24 and the wall portion 26, and the sheath tube 28 embedded in the wall portion 26. 38, and is inserted into the sheath pipes 52 and 56 embedded in the upper surface 48A of the joint portion 48 of the beam member 21 and the upper surface 50A of the beam portion 50 located below.

  Next, as shown in FIG. 5, a simple formwork such as an air hose is temporarily installed at the periphery of the joint space 64 formed by the spacer 62, and the joint space 64, the sheath tubes 28 and 38, and the sheath tube 52. , 56 is filled with the curing material 34. The sheath tube 28 and the column rebar 30 and the sheath tube 38 and the wall rebar 40 are fixedly coupled to each other by the hardening material 34 filled in the sheath tubes 28 and 38, and adjacent to each other through the sheath tubes 52 and 56. The column reinforcing bars 30 and the wall reinforcing bars 40 of the beam member 21 are connected to each other.

  Next, the operation and effect of this modification will be described.

  After the column wall member 12 is stacked in a plurality of stages, the column rebar 30 and the wall rebar 40 are installed when the column wall member 12 is installed by passing the column rebar 30 and the wall rebar 40 through the sheath tubes 28 and 38. The column wall member 12 can be moved and installed in the horizontal direction or the horizontal direction (arrow A direction) without becoming an obstacle. Therefore, the freedom degree of the moving direction of the column wall member 12 increases, and workability improves. Of course, instead of moving the column wall member 12 in the horizontal direction or the horizontal direction (arrow A direction), the column wall member 12 can be lowered and installed from above.

  Next, the column wall structure 70 according to the second embodiment will be described. Note that the same components as those in the first embodiment are denoted by the same reference numerals and will be appropriately omitted.

  As shown in FIG. 6, the column wall structure 70 includes a plurality of column wall members 72. The column wall member 72 is protruded from a column portion 74 made of PCa, a wall portion 76 made of PCa extending from a side surface 74D of the column portion 74, and a side surface 74E opposite to the wall portion 76 of the column portion 74. And a wall portion 78 made of PCa. These column portions 74 and wall portions 76 and 78 are integrally manufactured in a factory.

  In the column wall member 72, a horizontal reinforcing bar 80 is arranged over the column portion 74 and the wall portions 76 and 78. An insertion hole 84 (see FIG. 7) as an insertion portion is formed on the end surface 78D of the wall 78 by an eight sheath tube 82 (see FIG. 8) embedded in the end surface 78D or a hollow tube such as a mechanical joint. ) Is formed. One end of the horizontal reinforcing bar 80 arranged in the column wall member 72 is inserted into the sheath tube 82 so as not to protrude from the end surface 78 </ b> D of the wall portion 78. The other end of the horizontal reinforcing bar 80 protrudes from the end surface 76D of the wall 76.

  As shown in FIGS. 7A and 7B, the two columnar wall members 72 are arranged with the end surface 76D of the wall portion 76 and the end surface 78D of the wall portion 78 facing each other, and these wall portions 76 are arranged. A part of the wall 18 (see FIG. 1) is formed by joining the wall portion 78 and the wall portion 78. At this time, the horizontal rebar 80 protruding from the end surface 76D of the wall 76 is inserted into the sheath tube 82 embedded in the end surface 78D of the wall 78, and the sheath tube 82 and the sheath tube 82 are filled with the hardening material 34 filled in the sheath tube 82. The horizontal reinforcing bar 80 is fixedly coupled. Thereby, the horizontal reinforcing bars 80 of the adjacent column wall members 72 are connected to each other. Although illustration is omitted, an injection hole leading to the inside of the sheath tube 82 is formed in the side surface 78C of the wall portion 78, and the hardening material 34 is injected into the sheath tube 82 from the injection hole.

  Next, an example of a construction method for the column wall structure 70 according to the second embodiment will be described. For convenience of explanation, in FIGS. 8 and 9, the column wall member 72 disposed on the left side is referred to as a column wall member 72A, and the column wall member 72 disposed on the right side is referred to as a column wall member 72B.

  As shown in FIGS. 8A to 8C, first, the column wall member 72 </ b> A is placed on the beam member 21 or the column wall member 72 </ b> A stacked on the beam member 21. A beam member 51 is joined to the joint portion 48 of the beam member 21 located below.

  Next, the column wall member 72B is moved in the horizontal direction or the horizontal direction (arrow B direction) relative to the column wall member 72A, and the end surface 78D of the wall portion 78 of the column wall member 72A and the column wall member 72B are moved. The horizontal reinforcing bar 80 projecting from the end surface 76D is inserted into the sheath tube 82 (insertion hole 84) embedded in the end surface 78D. At this time, a joint space 86 of about 20 mm (see FIG. 7B) is formed between the end face 78D and the end face 76D. The joint space 86 can absorb manufacturing errors of the column wall members 72A and 72B, thereby improving workability. The joint space 86 can be omitted, but it is desirable to provide it from the viewpoint of the workability described above.

  Next, a simple formwork such as an air hose is temporarily installed at the peripheral edge of the joint space 86, and the joint space 86 is closed except for the upper part. Next, the hardening material 34 is injected from the side surface 78 </ b> C of the wall portion 78, the sheath tube 82 is filled with the hardening material 34, and the horizontal reinforcing bars 80 inserted into the sheath tube 82 are fixedly coupled to the sheath tube 82. Accordingly, the horizontal reinforcing bars 80 of the column wall members 72A and 72B are connected to each other via the sheath tube 82. Further, the hardening material 34 is filled into the joint space 86 from above, and the wall portion 78 of the column wall member 72A and the wall portion 76 of the column wall member 72B are joined. By repeating these operations, the pillar wall members 72A and 72B are stacked on the beam member 21 in a plurality of stages (in the configuration shown in FIG. 8B, five stages).

  Next, the beam member 21 is lowered from above the uppermost (fifth) column wall member 12, and the beam member 21 is placed on the column wall members 72A and 72B. At this time, the column reinforcement 30 and the wall reinforcement 40 protruding from the lower surface 48B of the joint portion 48 of the beam member 21 and the lower surface 50B of the beam portion 50 are embedded in the column portion 24 and the wall portion 26 of the column wall members 72A and 72B. The sheath tubes 28 and 38 are inserted into the sheath tubes 52 and 56 embedded in the upper surface 48A of the joint portion 48 of the beam member 21 and the upper surface 50A of the beam portion 50.

  Next, a simple formwork such as an air hose is temporarily installed at the periphery of the joint space 64 formed by the spacer 62, and the hardening material 34 is placed in the joint space 64, the sheath tubes 28 and 38, and the sheath tubes 52 and 56. Fill. The sheath tube 28 and the column rebar 30 and the sheath tube 38 and the wall rebar 40 are fixedly coupled to each other by the hardening material 34 filled in the sheath tubes 28 and 38, and adjacent to each other through the sheath tubes 52 and 56. The column reinforcing bars 30 and the wall reinforcing bars 40 of the beam member 21 are connected to each other.

  Next, operations and effects of the column wall structure 70 according to the second embodiment will be described.

  The two column wall members 72 are arranged to face each other, that is, the end surface 78D of the wall portion 78 of one column wall member 72 and the end surface 76D of the wall portion 76 of the other column wall member 72 face each other. Since the wall portion 78 and the wall portion 76 are joined to construct a part of the wall 18 (see FIG. 1), the column wall member 72 can be downsized. Therefore, the lifting and transportation of the column wall member 72 is facilitated, and the workability is improved.

  Further, by moving the wall portion 76 from which the horizontal reinforcing bar 80 protrudes relative to the wall portion 78 provided with the insertion hole 84 (sheath tube 82) in the lateral direction or the horizontal direction (arrow B direction). Then, the horizontal reinforcing bar 80 is inserted into the insertion hole 84, and the sheath tube 82 and the horizontal reinforcing bar 80 are fixedly coupled. Accordingly, only a gap (for example, 5 to 25 mm, 20 mm in the present embodiment) that absorbs the construction error such as the joint space 86 is provided between the end surface 78D of the wall portion 78 and the end surface 76D of the wall portion 76. Thus, the wall portion 78 and the wall portion 76 can be joined to each other, and the conventional large-scale formwork and concrete work are not required, so that the workability can be improved and the work period can be shortened.

  Next, a modification of the column wall structure 70 according to the second embodiment will be described. FIG. 10 is an enlarged side view of the joint between the wall portion 76 and the wall portion 78.

  As shown in FIGS. 10A and 11, a sheath tube 90 (housing portion) is embedded in the end surface 78 </ b> D of the wall portion 78. The sheath tube 90 is inserted so that one end of the horizontal reinforcing bar 80 arranged in the wall portion 78 does not protrude from the end surface 78D, and a mechanical joint 92 (hollow tube) is accommodated therein. The cylindrical mechanical joint 92 is housed in the sheath tube 90 in a state where the horizontal reinforcing bar 80 is inserted, and is slidable along the horizontal reinforcing bar 80. The mechanical joint 92 may be a screw-in mechanical joint with a threaded inner peripheral wall.

  An insertion hole 96 (insertion portion) is formed in the end surface 76D of the wall portion 76 facing the end surface 78D of the wall portion 78 by a sheath tube 94 embedded in the end surface 76D. One end of the horizontal reinforcing bar 80 arranged in the column portion 76 is inserted into the sheath tube 94 so as not to protrude from the end surface 76D. In the sheath tube 94, a mechanical joint 92 drawn out from the sheath tube 90 is embedded at a position where it can be inserted.

  The wall portion 78 and the wall portion 76 are disposed with the end surface 78D and the end surface 76D facing each other. At this time, a joint space 86 of about 20 mm is formed between the end face 78D and the end face 76D. Groove portions 98 and 100 are formed in the end surface 76D of the wall portion 76 and the end surface 78D of the wall portion 78, respectively, and a joint space is formed between the sheath tube 90 and the sheath tube 94 by the groove portions 98 and 100. A space (about 60 mm) wider than 86 is formed. A gripping tool such as a hand or a pipe wrench is put in this space, and the mechanical joint 92 is easily pulled out from the sheath tube 90. Although not shown in the drawings, injection holes communicating with the sheath tubes 90 and 94 are formed on the side surfaces of the wall portions 78 and 76, and the hardening material 34 is transferred from the injection holes to the sheath tubes 90 and 94. Injected.

  Next, the example of the construction method of this modification is demonstrated.

  First, the two column wall members 72 are arranged so that the end surface 78D of the wall portion 78 and the end surface 76D of the wall portion 76 face each other. Next, a hand or a pipe wrench or the like is put into the space formed by the grooves 98 and 100, and the mechanical joint 92 accommodated in the sheath tube 90 is gripped and pulled out, and the sheath tube embedded in the end surface 76D. Move toward 94. As a result, the mechanical joint 92 is slid along the horizontal rebar 80 (in the direction of arrow C) and inserted into the sheath tube 94, and the horizontal rebar 80 in the sheath tube 94 is inserted into the mechanical joint 92. Next, the hardening material 34 is filled into the inside of the mechanical joint 92 from an injection hole (not shown) formed in the peripheral surface of the mechanical joint 92, and the horizontal reinforcing bar 80 of the wall portion 78 and the horizontal reinforcing bar of the wall portion 76 are filled. 80 is fixedly connected and connected.

  Next, a simple formwork such as an air hose is temporarily installed at the peripheral edge of the joint space 86 and the groove portions 98 and 100, and the joint space 64 and the groove portions 98 and 100 are closed except for the upper part. Next, each of the sheath tubes 90 and 94, the joint space 86, and the grooves 98 and 100 are filled with the curing material 34. Thereby, the wall part 78 and the wall part 76 are joined so that shearing force can be transmitted.

  Next, the operation and effect of this modification will be described.

  By sliding the mechanical joint 92 accommodated in the sheath tube 90 along the horizontal reinforcing bar 80, the horizontal reinforcing bar 80 of the wall 78 and the horizontal reinforcing bar 80 of the wall 76 are connected. Further, when the mechanical joint 92 is accommodated in the sheath tube 90 so as not to protrude from the end surface 78D of the wall 78, the end surface 78D of the wall portion 78 and the end surface 76D of the wall portion 76 face each other. The end surface 78D and the end surface 76D can face each other by moving the wall portion 76 in the vertical direction or moving it in the horizontal direction relative to the wall portion 78 without causing the obstacle 92. Furthermore, it is only necessary to provide a gap (for example, 5 to 25 mm, 20 mm in the present embodiment) enough to absorb construction errors at the joint between the wall portion 78 and the wall portion 76. No frame work or concrete work is required. Therefore, it is possible to improve the workability and shorten the construction period.

  Further, by connecting the horizontal reinforcing bar 80 of the wall portion 78 and the horizontal reinforcing bar 80 of the wall portion 76 with the mechanical joint 92, the horizontal reinforcing bars 80 can be connected easily and reliably. Furthermore, by providing the grooves 98 and 100 on the end surface 78D of the wall portion 78 and the end surface 76D of the wall portion 76, the mechanical joint 92 can be easily gripped.

  12A and 12B, the mechanical joint 92 having the string 102 attached to the rear end portion is housed in the sheath tube 90, and the string 102 is pulled (arrow D). Direction), the mechanical joint 92 may be moved toward the sheath tube 94.

  Further, as shown in FIGS. 13A and 13B, a reinforcing bar 104 is inserted into each of the sheath tube 90 and the sheath tube 94, and the reinforcing bar 104 and the sheath tubes 90 and 94 are fixedly coupled. Alternatively, the horizontal reinforcing bar 80 of the wall part 78 and the horizontal reinforcing bar 80 of the wall part 76 may be connected. Specifically, the reinforcing bar 104 is inserted into the sheath tube 90 or the sheath tube 94, and the reinforcing bar 104 protrudes from the end surface of the wall portion 78 or the end surface of the wall portion 76. Then, by moving the wall portion 76 in the lateral direction or the horizontal direction relative to the wall portion 78, the reinforcing bar 104 is inserted into the insertion hole 84 formed by the sheath tube 90 and the insertion hole 96 formed by the sheath tube 94. Are inserted respectively. At this time, the reinforcing bars 104 are inserted into the insertion holes 84 and 96 so that the axes of the horizontal reinforcing bars 80 and the reinforcing bars 104 substantially coincide with each other. The insertion holes 84 and 96 are filled with the hardening material 34, and the sheath tubes 90 and 94 and the reinforcing bar 104 are fixedly coupled. Thereby, the horizontal reinforcement 80 of the wall part 78 and the horizontal reinforcement 80 of the wall part 76 are connected.

  Next, the column wall structure 110 according to the third embodiment will be described. Note that the same components as those in the first embodiment are denoted by the same reference numerals and will be appropriately omitted.

  As shown in FIGS. 14 and 15, the column wall structure 110 includes a column wall member 112 and a column wall member 114. The pillar wall member 112 includes two pillar parts 116 made of PCa and a wall part 118 made of PCa provided between the pillar parts 116, and the pillar part 116 and the wall part 118 are used in a factory. It is manufactured integrally and formed in an I shape in plan view.

  The wall portion 118 is lower in height than the column portion 116, and a step is formed between the upper surface 116 </ b> A of the column portion 116 and the upper surface 118 </ b> A of the wall portion 118. A gap is formed between the step and the column wall member 114. A fixing portion 122 to which a steel plate 120 as a steel material damper is fixed is provided on the upper surface 118A of the wall portion 118. The fixing part 122 is a groove-like hole, and the lower part of the steel plate 120 can be inserted. The fixing part 122 is arranged in the fixing part 122 via the spacer 124, and the lower part of the steel plate 120 is fixed to the fixing part 122 by the hardened material 34 (see FIG. 15) filled in the fixing part 122. The hardening material 34 is also filled into a plurality of through holes 120 </ b> A formed in the lower portion of the steel plate 120, and the lower portion of the steel plate 120 is firmly fixed to the fixing portion 122. As the material of the steel plate 120, ordinary steel or low yield point steel is used.

  A plurality of sheath tubes 134 (see FIG. 15) are embedded in the lower surface 118B of the wall portion 118. The wall reinforcing bar 40 is inserted into the sheath tube 134, and the adjacent column wall member 112 and the column wall member 12 are joined.

  The column wall member 114 is placed on the column portion 116 of the column wall member 112 via the spacer 62. The pillar wall member 114 includes two pillar parts 126 made of PCa and a wall part 128 made of PCa provided between the pillar parts 126. The wall portion 128 is lower in height than the column portion 126, and a step is formed between the lower surface 126B of the column portion 126 and the lower surface 128B of the wall portion 128. Thereby, when the column portion 126 is placed on the column portion 116 of the column wall member 112, a gap is formed between the wall portion 128 and the wall portion 118.

  A fixing portion 132 to which the steel plate 120 is fixed is provided on the lower surface 128 </ b> B of the wall portion 128. The fixing part 132 is a groove-shaped hole, and the upper part of the steel plate 120 can be inserted. The upper part of the steel plate 120 inserted into the fixing part 132 is fixed to the fixing part 132 by a hardener 34 (see FIG. 15) filled in the fixing part 132. The hardening material 34 is also filled into a plurality of through holes 120B formed in the upper part of the steel plate 120, and the upper part of the steel plate 120 is firmly fixed to the fixing portion 132. Thereby, the wall part 118 of the column wall member 112 and the wall part 128 of the column wall member 114 are connected by the steel plate 120. A plurality of sheath tubes 136 are embedded in the upper surface 128 </ b> A of the wall portion 128. The wall reinforcing bar 40 is inserted into the sheath tube 136.

  Next, operations and effects of the column wall structure 110 according to the third embodiment will be described.

  The wall portion 118 of the column wall member 112 and the wall portion 128 of the column wall member 114 that are adjacent in the vertical direction are connected by a steel plate 120. Thus, when the wall 118 and the wall 128 are relatively displaced in the lateral direction (arrow E direction) during an earthquake, the steel plate 120 is shear-deformed and resists this, and exhibits seismic performance. Moreover, by designing so that the steel plate 120 yields, vibration energy is absorbed by the hysteresis energy of the steel material, and the damping function is exhibited. Therefore, the vibration of the building 14 is reduced, and the living performance and the earthquake resistance are improved. In addition, vibration energy absorption capacity can be raised by using low yield point steel etc. for the steel plate 120. FIG.

  In the present embodiment, the fixing portions 122 and 132 are grooved holes, but the present invention is not limited to this. The fixing parts 122 and 132 only have to be able to fix the steel plate 120 so that shearing force can be transmitted. Even if the steel plate 120 is fixed to the upper surface 118A of the wall 118 and the lower surface 128B of the wall 128 by an adhesive such as a bolt or an epoxy resin. good.

  Moreover, it replaces with the steel plate 120, and as shown in FIG. 16, you may connect the wall part 118 and the wall part 128 with the dowel rebar 138 (steel material damper). One end of the dowel reinforcing bar 138 is inserted into the sheath tube 38 embedded in the wall portion 118, and the other end is inserted into the sheath tube 38 embedded in the wall portion 128. One end of each of the wall reinforcing bars 40 is inserted into the sheath tube 38, and the dowel reinforcing bar 138, the wall reinforcing bar 40, and the sheath tube 38 are fixedly coupled by the hardening material 34 filled in the sheath tube 38. Thereby, the wall part 118 and the wall part 128 are connected by the dowel rebar 138.

  Here, when the wall 118 and the wall 128 are relatively displaced in the lateral direction (arrow E direction) during an earthquake, the dowel rebar 138 is deformed and vibration energy is absorbed. Therefore, the vibration of the building 14 is reduced, and the living performance and the earthquake resistance are improved. In addition, vibration energy absorption capacity | capacitance can be raised by using low yield point steel etc. for the dowel reinforcement 138. FIG.

  In addition, in the said 1st-3rd embodiment, although the piled column wall member 12 or the column wall members 112 and 114 were joined by the column reinforcement 30 and the wall reinforcement 40, as shown in FIG. (Vertical steel material) may be pressure bonded.

  Specifically, a plurality of column wall members 12 are stacked between the upper and lower beam members 142A and 142B. Sheath tubes 148 and 150 are embedded in the joint portion 144 and the beam portion 146 of the beam members 142A and 142B, respectively. The PC steel 140 is vertically penetrated through the sheath tubes 148 and 150 and the sheath tubes 28 and 38 (through holes) embedded in the column portions 24 and the wall portions 26 of the stacked column wall members 12. Yes. The PC steel material 140 is fixed to the upper part of the beam member 142A and the lower part of the beam member 142B by nuts 152 attached to both ends of the PC steel material 140 in the axial direction while being tensioned by a hydraulic jack (not shown) or the like. As a result, the beam members 142A and 142B and the stacked column wall members 12 are joined by pressure bonding. Each sheath tube 28, 38, 148, 150 is filled with a curing material 34.

  Thus, by press-bonding the stacked column wall members 12 with the PC steel material 140 that has been tensioned, prestress is introduced into each column wall member 12 and strengthened, and the column wall members 12 adjacent to each other are strengthened. Bonding strength is increased. Therefore, the transmission efficiency of the shear force between the adjacent column wall members 12 is improved. In the pressure bonding using the PC steel material 140, not only a bond type but also an after bond type and an unbond type can be applied. Furthermore, when the column wall member 12 is made continuous with the upper layer of the beam member 142A, the lower layer PC steel material 140 and the PC steel material 140 penetrated by the upper layer column wall member 12 may be connected to each other with a coupler or the like.

  Further, the column wall members 12, 112, and 114 can be configured in various shapes by combining the column portion and the wall portion. For example, as shown in the schematic view of the column wall member 12 shown in FIGS. 18A to 18E, one wall portion 26 may be integrated with the column portion 24 (FIG. 18B), or the column portion. 24, the two wall portions 26 projecting at a substantially right angle are integrated (FIG. 18C), and a wall portion 26 is provided between the two column portions 24, and the wall projecting at a substantially right angle with the wall portion 26. The portion 26 may be provided on one column portion 24 (FIG. 18D). Moreover, the wall part 26 and the beam part 50 may be provided between the pillar parts 24, and these pillar part 24, the wall part 26, and the beam part 50 may be integrated (FIG.18 (E)). In the configuration shown in FIG. 18, since the drawing is complicated, the sheath tube 28 and the like embedded in the column portion 24 and the like are omitted. Furthermore, as shown in FIG. 19, the pillar 16 and the wall 18 (see FIG. 1) may be configured by one pillar wall member 154 in which the wall 158 is integrated with the pillar 156. In this case, the column wall member 154 and the upper and lower beams 160 may be appropriately joined by a forward piercing method, a reverse piercing method, a PC crimping method, a conventional formwork method, or the like.

  Next, the example of the column wall member manufacturing method which concerns on embodiment of this invention is demonstrated. In addition, the column wall member which concerns on the said 1st-3rd embodiment is not limited to what was manufactured with the following column wall member manufacturing methods.

  As shown in FIGS. 20 to 22, in the column wall member manufacturing method, a column wall member 172 (second column wall member) and two column wall members 174 (first column wall member) are formed by one mold 170. To manufacture. As shown in FIG. 22, the column wall member 172 includes a column part 178 and two wall parts 180, and the wall part 180 is integrated with each of the opposing side surfaces of the column part 178, and T in plan view. Molded into a mold. The column wall member 172 has a horizontal reinforcing bar 80 extending over the column portion 178 and the two wall portions 180. One end of the horizontal reinforcing bar 80 is inserted into a sheath tube 94 embedded in the end surface of one wall portion 180, and the other end of the horizontal reinforcing bar 80 is inserted into the sheath tube 94 embedded in the end surface of the other wall portion 180. Has been inserted. Further, a through hole through which the column reinforcing bar penetrates in the vertical direction is formed in the column part 178 by the sheath tube 28 embedded in the column part 178.

  The column wall member 174 includes a column portion 184 and a wall portion 186. The wall portion 186 is integrated with the side surface of the column portion 184, and is formed into an L shape in plan view. In the column wall member 172, a horizontal reinforcing bar 80 is arranged across the column portion 184 and the wall portion 186. One end of the horizontal reinforcing bar 80 is inserted into the sheath tube 90 embedded in the end surface of the wall portion 186. Further, a through hole through which the column reinforcing bar penetrates in the vertical direction is formed in the column part 184 by the sheath tube 28 embedded in the column part 184.

  The column wall member 172 and the column wall member 174 are arranged with the end surface of the wall portion 180 facing the end surface of the wall portion 186, and the rebars 80 inserted between the sheath tubes 90 and 94, respectively, Is connected. The sheath pipes 90 and 94 and the joint space formed between the end face of the wall part 180 and the end face of the wall part 186 are filled with a hardener (not shown) to form the wall part 180 and the wall part 186. Be joined.

  As shown in FIGS. 20A to 20C, the steel mold 170 includes a bottom plate 188 and four side plates 190 </ b> A, 190 </ b> B, 190 </ b> C, and 190 </ b> D that stand along the four sides of the bottom plate 188. ing. The opposing side plates 190A and 190B are erected along the long side of the bottom plate 188, and the opposing side plates 190C and 190D are erected along the short side of the bottom plate 188. By assembling these side plates 190 </ b> A to 190 </ b> D into a frame shape, a placement space 192 (concrete placement space) in which concrete is laid is formed inside the mold 170. The placement space 192 has a T-shaped striking in plan view in which the column wall member 172 is manufactured by the wall partition plate 194 (partition member) and the column partition plate 196 (partition member) disposed inside the mold 170. The installation space 192A (second placement space) and the L-shaped two placement spaces 192B (first placement space) are partitioned in plan view where the column wall member 174 is manufactured.

  The two wall partition plates 194 are disposed substantially parallel to the side plates 170A and 170B, and are located in the center of the mold 170 in the short direction (arrow Y direction) and in the longitudinal direction of the mold 170 (arrow X direction). It is arranged with a gap. By the wall partition plate 194, the placement space 192 is partitioned in the short direction (arrow Y direction) of the mold 170, and the wall surfaces 180A and 186A (see FIG. 21) of the wall portions 180 and 186 are formed.

  The four columnar partition plates 196 are disposed substantially parallel to the side plates 170C and 170D, and are arranged between one end in the longitudinal direction of each wall partition plate 194 and the side plate 170A, or the other end in the longitudinal direction of the wall partition plate 194 and the side plate. 170B. That is, the column partition plates 196 are alternately extended from both ends in the longitudinal direction of the wall partition plates 194 to reach the side plates 170C and 170D. By the column partition plate 196, the placement space 192 is partitioned in the longitudinal direction (X direction) of the mold 170, and the side surfaces 178A and 184A (see FIG. 21) of the column portions 178 and 184 and the end surfaces 180B of the wall portions 180 and 186. 186B is formed.

  As described above, the placement space 192A and the placement space 192B are partitioned by the wall partition plate 194 and the column partition plate 196 disposed in the mold 170. Thereby, the wall surface 180A of the wall portion 180 manufactured in the placement space 192A and the wall surface 186A of the wall portion 186 manufactured in the placement space 192B are partitioned so as to face each other.

  Four sheath tubes 28 are erected at the position where the column portion 178 of the placement space 192A is manufactured. A plurality of shear reinforcement bars 200 are arranged around these sheath tubes 28. In addition, a sheath tube 94 into which one end of the horizontal reinforcing bar 80 is inserted is fixed to the column partition plate 196 forming the end surface 180B of the wall portion 180 with an adhesive or the like. In addition, four sheath tubes 28 are erected at the position where the column portion 184 of the placement space 192B is manufactured. A plurality of shear reinforcement bars 200 are arranged around these sheath tubes 28. In addition, the sheath tube 94 into which one end of the horizontal reinforcing bar 80 is inserted is fixed to the column partition plate 196 that forms the end surface 186B of the wall portion 186 with an adhesive or the like.

  In this way, the wall surface 180A of the wall portion 180 manufactured in the placement space 192A and the wall surface 186A of the wall portion 186 manufactured in the placement space 192B face each other, that is, the wall portion 180 and the wall portion 186 are. The placement space 192 in the mold 170 is partitioned by the wall partition plate 194 and the column partition plate 196 so as to face each other. Thereby, the effective use of the placement space 192 can be aimed at and manufacturing cost can be reduced. That is, the placement space 192A and the placement space 192B are each divided into a T shape and an L shape in plan view, and by combining these placement spaces 192A and 192B, a plurality of column wall members can be formed by a single concrete placement. Since 172 and 174 can be manufactured in one mold 170, manufacturing efficiency is improved.

  In the above-described embodiment, the T-shaped column wall member 172 in the plan view and the L-shaped column wall member 174 in the plan view are manufactured in the mold 170, but the present invention is not limited thereto. For example, as shown in FIG. 23, the placement space 202 is partitioned by a wall partition plate 194 and a column partition plate 196 so that the wall surfaces 186A of the wall portion 186 of the manufactured column wall member 174 face each other, and in plan view The L-shaped placement space 202A (first placement space) and the placement space 202B (second placement space) may be formed. Thereby, the effective use of the placement space 202 can be achieved and the manufacturing cost can be reduced. That is, the placement space 202A and the placement space 202B are partitioned into an L shape in plan view, and by combining these placement spaces 202A and 202B, a plurality of column wall members 174 can be combined into one by one concrete placement. Since it can manufacture within the formwork 170, manufacturing efficiency improves.

  Further, the plurality of column wall members 172 and 174 may be manufactured by appropriately combining the placement spaces 192A, 192B, 202A and 202B. Further, the horizontal reinforcing bar 80, the sheath tube 28, the shear reinforcement bar 200, and the like installed in the placement space 192 may be arranged according to the strength required for the column wall members 172 and 174. Further, a beam member in which the joint portion and the beam portion are integrated can be manufactured by the same manufacturing method as in the present embodiment. Moreover, in this embodiment, although the steel formwork 170 was used, not only this but various formwork, such as a wooden formwork, can be used.

  In the first to fourth embodiments, the example in which the through holes are formed in the column part 24 and the wall part 26 of the column wall member 12 using the sheath tubes 28, 38, etc. has been shown. As long as the reinforcing bar 30, the wall reinforcing bar 40, and the like can be penetrated, a through-hole may be formed using a tube material other than the sheath tube. Further, the through hole only needs to be at least in the column portion 24, and the through hole (the sheath tube 38) of the wall portion 26 can be omitted as appropriate.

  Similarly, in the second embodiment, the insertion holes 84 and 96 are formed in the end surface of the wall portion using the sheath tubes 90 and 94. The insertion holes 84 and 96 are provided with the horizontal reinforcing bar 80, the reinforcing bar 104, and the mechanical joint. The insertion holes 84 and 96 may be formed using a tube material other than the sheath tube. Further, for example, a columnar member such as urethane foam may be disposed at a position where the insertion hole is formed, and the through-hole may be formed by taking out the columnar member after the concrete has hardened. Further, the insertion holes 84 and 96 may be formed by drilling.

  Furthermore, the column wall members 12, 72, 112, 114 and the like according to the first to third embodiments are not limited to reinforced concrete structures, but may be steel reinforced concrete structures or prestressed concrete structures. In addition, for convenience of explanation, the explanation has been made by omitting the shear reinforcement bars provided in the column wall members 12, 72, 112, 114, etc., but the shear reinforcement bars etc. correspond to the strength required for each column wall member. May be provided as appropriate. Further, the column wall structures 10, 70, 110 may be used for a part of the building 14 or for all of them.

  The first to fourth embodiments of the present invention have been described above. However, the present invention is not limited to such embodiments, and the first to fourth embodiments may be used in combination. Of course, various embodiments can be implemented without departing from the scope of the invention.

10 Column wall structure 12 Column wall member 14 Building 24 Column 26 Wall 28 Sheath tube (through hole)
30 Column reinforcement (vertical steel)
38 Sheath tube (through hole)
40 Wall reinforcement (vertical steel)
70 Column wall structure 72 Column wall member 74 Column 76 Wall 76D End surface (end surface of wall)
78 Wall 78D End face (End face of wall part)
80 Horizontal bar 84 Insertion hole (insertion part)
92 Mechanical coupling (hollow tube)
96 Insertion hole (insertion part)
104 Reinforcement 110 Column wall structure 112 Column wall member 114 Column wall member 116 Column 118 Wall 120 Steel plate (steel damper)
126 Column 128 Wall 138 Dowel Reinforcement (Steel Damper)
140 PC Steel 154 Column Wall Member 156 Column 158 Wall 170 Form 172 Column 172 Column Wall Member 174 Column Wall Member 178 Column 180 Wall 184 Column 186 Wall 192 Placing Space (Concrete Placing Space)
192A placement space (second placement space)
192B placement space (first placement space)
194 Wall divider (partition member)
196 Column divider (partition member)
202 Placement space (concrete placement space)
202A placement space (first placement space)
202B placement space (first placement space)

Claims (11)

A precast concrete pillar portion; a precast concrete wall portion integrated with the pillar portion; and at least a through-hole formed in the pillar portion; and a plurality of layers stacked to form a one-level wall surface. A column wall member;
A spacer that is disposed between the upper and lower column portions and forms a joint space between the column wall members that form the wall surface ;
A hardener filled in the joint space;
A vertical steel material that is vertically penetrated into each of the through holes and joins the adjacent column wall members;
Column wall structure with A beam member having a joint part made of precast concrete, a beam part made of precast concrete integrated with the joint part, and an insertion hole formed in at least the joint part;
A plurality of precast concrete pillars, precast concrete wall parts integrated with the pillars, and at least through holes formed in the pillars, and stacked on the beam member. A column wall member;
A vertical steel material that is vertically penetrated into each of the insertion hole and the through hole, and joins the beam member and the plurality of column wall members;
Column wall structure with A plurality of pillar wall members stacked, each having a pillar part made of precast concrete, a wall part of precast concrete integrated with the pillar part, and a through-hole formed in at least the pillar part;
A vertical steel material that is vertically penetrated into each of the through holes and joins the adjacent column wall members;
With
The two column wall members are arranged to face each other in the lateral direction, and have the wall portion provided on the side surface of the column portion of one of the column wall members, and an end surface facing the end surface of the wall portion. The column wall structure which joined the said wall part provided in the side surface of the said column part of the other said column wall member.   The hollow tube stored in the storage part provided on the end surface of the other wall part is drawn out from the storage part to the insertion part provided on the end surface of the one wall part facing, and inserted into the insertion part. 4. The pillar wall structure according to claim 3, wherein the pillar wall structure is fixedly coupled.   The column wall structure according to claim 3, wherein a horizontal reinforcing bar projecting from the other wall portion is inserted into an insertion portion provided on an end surface of one of the facing wall portions and fixedly coupled.   The column wall structure according to claim 3, wherein an insertion portion is provided on an end surface of the facing wall portion, and a reinforcing bar is inserted and fixedly coupled to each of the insertion portions. The vertical steel material is made of PC steel material,
The column wall structure according to any one of claims 1 to 6, wherein the PC steel material is passed through each of the through holes of the column wall member, the PC steel material is tensioned, and the column wall member is bonded by pressure bonding. A plurality of pillar wall members stacked, each having a pillar part made of precast concrete, a wall part of precast concrete integrated with the pillar part, and a through-hole formed in at least the pillar part;
A spacer that is arranged between the upper and lower column parts and forms a joint space between the column wall members;
A hardener filled in the joint space;
A vertical steel material that is vertically penetrated into each of the through holes and joins the adjacent column wall members;
With
A clearance, pillar wall said wall portions and connected by steel damper structure between the wall portions of the columnar wall member adjacent to the vertical direction. The column wall structure according to any one of claims 2 to 7, wherein a gap is provided between the wall portions of the column wall members adjacent in the vertical direction, and the wall portions are connected to each other by a steel damper. The column wall structure according to claim 8 or 9, wherein the steel material damper is a steel plate or a dowel rebar erected in the gap. The building which has the column wall structure of any one of Claims 1-10.

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