JP6739929B2 - Compaction member and compaction method - Google Patents

Description

The present invention relates to a compaction member for compacting cast concrete and a compaction method.

Japanese Unexamined Patent Publication No. 6-108654 discloses a concrete compacting device. This compaction device includes vibration generating means for generating vibration outside the PC inner mold, a transmission rod penetrating the PC inner mold, and a transmission rod located inside the PC inner mold and connected to the transmission rod continuously. It is equipped with a vibrating rod. In this compaction device, the vibration generated by the vibration generating means is transmitted to the vibrating rod via the transmitting rod, and the vibrating rod vibrates to thereby compact the concrete.

In Japanese Unexamined Patent Publication No. 4-297663, an exciter attached to the outside of the mold, a transmission rod that is connected to the exciter and penetrates the form, and is connected to the transmission rod inside the form. And a rod-shaped vibrating member. In this compaction device, the vibration of the exciter is transmitted to the rod-shaped vibrating member via the transmission rod, whereby the concrete is compacted.

JP-A-6-108654 JP-A-4-297663

The concrete compaction device described above compacts concrete by vibrating the concrete with a rod-shaped member. When vibrating concrete with a rod-shaped member in this way, since the contact area between the rod-shaped member and the gravel that composes the concrete is small, it is difficult to transmit vibration in the concrete and the compaction range of concrete is narrow. is there.

As described above, since the compaction device described above has a narrow compaction range of concrete, it is necessary to arrange a large number of compaction devices described above when compacting concrete over a wide range. Further, when using this compaction device, it is necessary to pass the transmission rod through the mold. Therefore, there is a problem that the arrangement work of the device is complicated and the workability is deteriorated.

It is an object of the present invention to provide a compaction member and a compaction method that can broaden the range of compaction of concrete and can easily perform the work of disposing the device.

The compaction member according to the present invention is a compaction member that compacts concrete by vibrating the cast concrete, and is a rod-shaped steel material embedded in the concrete and attached to the steel material and vibrates through the steel material. Is attached to the part of the steel material that is embedded in the concrete, and is attached to the part that is embedded in the concrete of the steel material, and has a thickness thicker than that of the steel material and is buried in the concrete. And the steel member from which the vibrator has been removed, and the expansion member are buried in the concrete .

In the compaction member according to the present invention, the expansion member having a thickness larger than that of the steel material is provided in the portion of the rod-shaped steel material embedded in the concrete. Therefore, the vibration from the vibrator attached to the steel material is transmitted to the expansion member via the steel material, and the vibration of the expansion member causes the concrete to be compacted. With this expansion member, it is possible to increase the contact area between the expanding expansion member and the gravel forming the concrete. Therefore, the vibration can be easily transmitted to the gravel, and the vibration can be easily transmitted in the concrete, so that the range of compaction of the concrete can be expanded. Further, by expanding the compaction range of the concrete, the number of compacting members to be arranged and the number of times the compacting member is inserted into the concrete can be reduced. Further, since the compaction member can be arranged by embedding the steel material to which the expansion member is attached together with the expansion member in concrete, the arrangement work of the device can be easily performed.

Further, the expansion member may be made of a fiber-reinforced cementitious material. In this case, since the vibrating member is reinforced, it is possible to make the expansion member more unlikely to come off when the vibrator is vibrated.

Further, the expansion member may be attached to a plurality of locations of the one steel material. In this case, the range of vibration can be widened at a plurality of points on the concrete, so that the range of compaction can be widened at a desired point.

The steel material may have a bent portion that is bent with respect to a portion to which the vibrator is attached, and the expansion member may be attached to the bent portion. In this case, since the expansion member is attached to the bent portion of the steel material, the expansion member can be surely inserted into a portion having a complicated shape such as a haunch portion. Therefore, by inserting the expansion member into a place where vibration is hard to reach, the compaction range can be expanded even in a place where vibration is hard to reach. In this way, the vibration can be easily reached even to a portion having a complicated shape, so that the compaction effect of concrete can be further enhanced.

Further, the expansion member has a half-structure and may be attached to the steel material from a direction intersecting the direction in which the steel material extends. In this case, for example, it is possible to attach a half-split expansion member to a steel material previously brought in. That is, since it is not necessary to attach the expansion member to the steel material in advance and the expansion member can be attached afterwards, the expansion member can be attached to an arbitrary portion of the steel material.

Also, the expansion member may have a protrusion that faces the formwork when embedded in concrete. In this way, when the expansion member has the protrusions facing the formwork, the protrusions function as spacers that secure the distance between the formwork and the steel material. That is, it is possible to secure the covering of the cast concrete by the projection. Therefore, the expansion member that expands the compaction range can also be used as the spacer, so that the work of separately disposing the spacer can be omitted. Therefore, the amount of work for placing and compacting concrete can be further reduced, and the work can be performed more easily.

A compaction method according to the present invention is a compaction method for compacting concrete using the above-described compaction member, wherein a step of burying a steel material to which an expansion member is attached in concrete together with the expansion member, and a vibrator on the steel material. The method includes a step of mounting and a step of vibrating the vibrator and transmitting the vibration of the vibrator to the concrete through the steel material and the expansion member.

In the compaction method according to the present invention, the compaction member described above is used, the steel material is embedded in the concrete together with the expansion member, and then the vibration from the vibrator is transmitted to the concrete through the steel material and the expansion member. Therefore, since the expansion member can increase the contact area with the gravel forming the concrete, it is possible to easily transmit the vibration to the gravel, like the compaction member described above. Therefore, the range of compaction of concrete can be expanded. Further, by expanding the compaction range of the concrete, it is possible to reduce the number of compacting members to be arranged and reduce the number of times of inserting the compacting member into the concrete. Further, since the arrangement can be performed by embedding the steel material in the concrete together with the expansion member, the arrangement work of the device can be easily performed.

INDUSTRIAL APPLICABILITY The compaction member and the compaction method according to the present invention can broaden the range of compaction of concrete and can easily perform the work of disposing the device.

It is a longitudinal section showing a state where a concrete compaction member concerning a 1st embodiment is installed. It is a perspective view which shows the expansion member of the compaction member of FIG. (A) And (b) is a side view which shows the example of the vibrator in the compaction member of FIG. It is a perspective view showing an expansion member of a compaction member concerning a 2nd embodiment. (A) is a side view which shows the compaction member which concerns on 3rd Embodiment, (b) is a longitudinal cross-sectional view which shows the state which inserted the compaction member of (a) into the haunch part. (A) is a perspective view showing a compaction member concerning a 4th embodiment, and (b) is a perspective view showing a compaction member concerning a 5th embodiment. It is a longitudinal section showing the state where the expansion member of the compaction member concerning a 6th embodiment was inserted in the formwork. (A) is a side view which shows the compaction member which concerns on 7th Embodiment, (b) is a side view which shows the compaction member which concerns on 8th Embodiment.

Embodiments of a concrete compacting member and a compacting method according to the present invention will be described below with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the concrete compacting member 1 according to the first embodiment is used, for example, inside a formwork 10 used when building a side wall on a bottom plate when building a body. A haunch part 11 is constructed at the joint between the bottom plate and the side wall. A plurality of rebars 12 which are structural rebars are assembled inside the form 10, and each rebar 12 is composed of a plurality of vertical bars 12a extending in the vertical direction and a plurality of horizontal bars 12b extending in the horizontal direction.

The formwork 10 includes a haunch part formwork 13 that is installed at an angle to form a haunch part 11. Further, inside the haunch portion form 13, a haunch muscle 14 extending obliquely along the inner side surface of the haunch portion form 13 is provided as the outermost rebar of the haunch portion 11. The vertical streak 12a, the horizontal streak 12b, and the haunch streak 14 described above are bound together by, for example, a wire.

As shown in FIGS. 1 and 2, the compaction member 1 compacts the concrete C by vibrating the uncured concrete C cast in the mold 10. The compacting member 1 includes a reinforcing bar 2 embedded in concrete C, a vibrator 3 located at one end of the reinforcing bar 2, and an expansion member 4 located at the other end of the reinforcing bar 2.

The reinforcing bar 2 is a rod-shaped steel material embedded in concrete C. As the reinforcing bar 2, it is preferable to use a reinforcing bar other than the structural reinforcing bar. Further, the reinforcing bar 2 has, for example, a round bar shape, and the diameter R1 of the reinforcing bar 2 is, for example, 16 mm or more and 22 mm or less.

The expansion member 4 has a thickness larger than that of the reinforcing bar 2. The expansion member 4 has, for example, a cylindrical outer periphery, and is fixed to the outer periphery of the reinforcing bar 2. The expansion member 4 is attached to a portion of the reinforcing bar 2 which is embedded in the concrete C. By fixing the expansion member 4 to the outer periphery of the reinforcing bar 2 in this manner, the contact area between the compacting member 1 and the concrete C is increased. The expansion member 4 is a cement-based material, but is preferably made of a fiber-reinforced cement-based material. Thus, when the expansion member 4 is a fiber-reinforced cement material, the expansion member 4 can be more firmly fixed to the reinforcing bar 2. The diameter R2 of the outer periphery 4a of the expansion member 4 is, for example, 40 mm or more and less than 60 mm.

The vibrator 3 is attached to, for example, the upper end of the reinforcing bar 2 and transmits vibration to the concrete C using the reinforcing bar 2 and the expansion member 4 as a transmission medium. The vibrator 3 is attached to, for example, a portion of the reinforcing bar 2 that is not embedded in the concrete C. As shown in FIGS. 3A and 3B, the vibrator 3 includes a vibrating portion 3a attached to the reinforcing bar 2, a cable 3b extending from the vibrating portion 3a, and a vibrating portion 3a of the cable 3b opposite to the vibrating portion 3a. And a power source connected to the end. In the vibrator 3, for example, when the power is supplied from the power source to the vibrating section 3a via the cable 3b, the vibrating section 3a vibrates. Further, the vibrator 3 is provided with, for example, a switch for turning on/off the power supply to the vibrating unit 3a.

As described above, the vibrator 3 is attached to one end of the reinforcing bar 2, but various kinds of vibrators can be used. For example, in the vibrator 3A shown in FIG. 3(a), the vibrating portion 3a is attached to the reinforcing bar 2 by the mechanical joint 3e, that is, the vibrator 3A is installed on the clamped threaded joint reinforcing bar.

Further, the vibrator 3B shown in FIG. 3(b) is of a stationary type and includes a rectangular attachment jig 3d that is continuous with the vibrating portion 3a. The mounting jig 3d has a hole 3f into which the reinforcing bar 2 is inserted from below, and the vibrating section 3a is mounted to the reinforcing bar 2 by inserting the reinforcing bar 2 into the hole 3f of the mounting jig 3d from below. .. As described above, various vibrators 3 can be used as the vibrator 3 attached to the reinforcing bar 2.

In the compacting member 1 configured as described above, as described above, the expansion member 4 having a thickness larger than that of the reinforcing bar 2 is provided in a portion of the rod-shaped reinforcing bar 2 which is embedded in the concrete C. Therefore, the vibration from the vibrator 3 attached to the reinforcing bar 2 is transmitted to the expansion member 4 via the reinforcing bar 2, and the expansion member 4 vibrates, whereby the concrete C is compacted.

Next, a compaction method for compacting the concrete C using the compaction member 1 will be described.

First, the expansion member 4 is fixed to the reinforcing bar 2 in advance. Then, as shown in FIG. 1, in a state where the uncured concrete C is placed inside the mold 10, the reinforcing member 2 is inserted into the concrete C together with the expanding member 4 with the expanding member 4 facing downward. In this way, the step of burying the reinforcing bar 2 to which the expansion member 4 is attached in the concrete C together with the expansion member 4 is executed.

Then, the step of attaching the vibrator 3 to the reinforcing bar 2 is executed. The step of attaching the vibrator 3 may be performed after the reinforcing bar 2 is embedded in the concrete C, or may be performed in advance before the reinforcing bar 2 is embedded in the concrete C. In this way, the vibrator 3 is attached to the reinforcing bar 2 embedded in the concrete C, and the vibration of the vibrator 3 is transmitted to the concrete C via the reinforcing bar 2 and the expansion member 4.

After that, the switch of the vibrator 3 is turned on to supply electric power to the vibrating section 3a to vibrate the vibrating section 3a. Then, the vibration of the vibrating portion 3a is transmitted to the concrete C via the reinforcing bar 2 and the expansion member 4, whereby the concrete C is compacted. After the compaction of the concrete C is completed, for example, the vibrator 3 is removed from the reinforcing bar 2 and the reinforcing bar 2 and the expansion member 4 are buried in the concrete C.

As described above, in the compaction member 1 and the compaction method according to the present embodiment, the reinforcing member 2 that transmits the vibration of the vibrator 3 is provided with the expansion member 4, and the expansion member 4 vibrates by the expansion member 4. The contact area between the gravel and the gravel that constitutes the concrete C can be increased. Therefore, the vibration can be easily transmitted to the gravel of the concrete C. Therefore, the vibration can be easily transmitted in the concrete C, so that the compaction range of the concrete C can be expanded.

Further, by expanding the compaction range of the concrete C, it is possible to reduce the number of compaction members 1 to be arranged and also reduce the number of times the compaction member 1 is inserted into the concrete C. Further, since the compaction member 1 can be arranged only by burying the reinforcing bar 2 to which the expansion member 4 is attached in the concrete C together with the expansion member 4, the arrangement work of the device can be easily performed. Further, the expansion member 4 can be made of a fiber reinforced cement-based material, and in this case, since the expansion member 4 is in a reinforced state, the expansion member 4 is more difficult to peel off when the vibrator 3 is vibrated. can do.

Furthermore, since the compaction member 1 is formed in a rod shape, it can be directly inserted into a portion where the reinforcing bars 12 are overcrowded and a portion where the structure of the reinforcing bars 12 is complicated, so that compacting is sufficiently performed. be able to. Further, the compaction member 1 includes a reinforcing bar 2, a vibrator 3, and an expansion member 4, and the vibrator 3 is detachable. In this way, the compaction member 1 has a simple structure, so that the raising and lowering work of the compaction member 1 can be easily performed. Furthermore, since the compaction member 1 is compacted by being inserted into and removed from the concrete C, and the range of compaction can be widened as described above, it is possible to reduce the number of compaction workers. is there.

(Second embodiment)
Next, the compaction member 21 according to the second embodiment will be described with reference to FIG. In the following description, a description that overlaps with the content described above will be omitted. As shown in FIG. 4, the compacting member 21 includes the same reinforcing bar 2 as that of the first embodiment, but the form of the expanding member 24 is different from that of the expanding member 4 of the first embodiment.

A plurality of expansion members 24 are provided for one rebar 2, and the plurality of expansion members 24 are intermittently arranged along the rebar 2. The plurality of expansion members 24 may be arranged at equal intervals or may be arranged at mutually different intervals. Further, the arrangement position of the expansion member 24 with respect to the reinforcing bar 2 can be appropriately changed depending on the location of the concrete C where the compaction range is desired to be widened. In this way, since the expansion member 24 of the second embodiment is attached to a plurality of locations of the single reinforcing bar 2, it is possible to expand the range of vibration at a plurality of locations of the concrete C. Therefore, it is possible to expand the compaction range at a desired location.

(Third Embodiment)
Next, the compaction member 31 according to the third embodiment will be described with reference to FIGS. 5(a) and 5(b). As shown in FIG. 5( a ), the reinforcing member 32 of the compacting member 31 is different from the reinforcing bar 2 described above.

The reinforcing bar 32 has a general portion 32a to which the vibrator 3 is attached and extends in the vertical direction, and a bent portion 32b that is bent at the lower end of the general portion 32a. The expansion member 4 is attached to the bent portion 32b as in the first and second embodiments. The bending angle θ1 of the bending portion 32b with respect to the general portion 32a is the same as the inclination angle θ2 of the haunch portion 11, for example. As a result, when the reinforcing bar 32 is embedded in the concrete C, the extending direction of the bent portion 32b and the inclination direction of the haunch portion 11 can be matched.

As described above, in the third embodiment, the reinforcing bar 32 has the bent portion 32b that is bent with respect to the general portion 32a that is the portion to which the vibrator 3 is attached, and the expansion member 4 is attached to the bent portion 32b. There is. In this way, since the expansion member 4 is attached to the bent portion 32b of the reinforcing bar 32, the expansion member 4 can be surely inserted into a portion having a complicated shape such as the haunch portion 11.

Therefore, by inserting the expansion member 4 into a place where vibration is hard to reach, the compaction range can be expanded even in a place where vibration is hard to reach. In this way, it is possible to make the vibration easily reach a portion having a complicated shape, so that the compaction effect of the concrete C can be further enhanced.

In addition, 3rd Embodiment demonstrated the reinforcing bar 32 provided with the bending part 32b bent at the lower end of the general part 32a. However, the bending angle of the bent portion, the location of the bent portion, the location of the expansion member attached to the bent portion, and the number of the bent portions can be appropriately changed according to the shape of the mold and the like.

(Fourth Embodiment)
Next, the compaction member 41 according to the fourth embodiment will be described with reference to FIG. As shown in FIG. 6A, the compaction member 41 according to the fourth embodiment includes an expansion member 44 having a configuration different from that of the expansion member 4 of the first embodiment.

The expansion member 44 includes a first half portion 44a and a second half portion 44b that are separate from each other, and a binding band 44c that fixes the first half portion 44a and the second half portion 44b to the reinforcing bar 2. .. In the expansion member 44, the first half portion 44a and the second half portion 44b are divided into two. The first half portion 44a and the second half portion 44b are attached to the reinforcing bar 2 from a direction (for example, a horizontal direction) intersecting the direction in which the reinforcing bar 2 extends. Specifically, the reinforcing bar 2 is sandwiched by the first half part 44a and the second half part 44b, and the binding band 44c is wound around the outer circumferences of the first half part 44a and the second half part 44b. Therefore, the expansion member 44 can be attached.

As described above, the expansion member 44 according to the fourth embodiment has a half-split structure, and is attached to the reinforcing bar 2 from a direction intersecting the direction in which the reinforcing bar 2 extends. Therefore, for example, it is possible to attach the half-split expansion member 44 later to the reinforcing bar 2 previously brought in. That is, since it is not necessary to attach the expansion member 44 to the reinforcing bar 2 in advance and the expansion member 44 can be attached afterwards, the expansion member 44 can be attached to any place of the reinforcing bar 2. Further, by using the binding band 44c, the first half portion 44a and the second half portion 44b can be easily fixed to the reinforcing bar 2.

(Fifth Embodiment)
FIG.6(b) has shown the compaction member 51 which concerns on 5th Embodiment. The compaction member 51 includes an expansion member 54 having a configuration different from that described above. The expansion member 54 includes a first half portion 54a and a second half portion 54b similar to those in the fourth embodiment, but the fixing means for the first half portion 54a and the second half portion 54b is the same as that in the fourth embodiment. Different.

That is, the expansion member 54 includes the bolt nut fixing member 54c that joins the first half portion 54a and the second half portion 54b while sandwiching the reinforcing bar 2. The bolt-nut fixing member 54c is, for example, an annular band portion 54d that bundles and holds the first half portion 54a and the second half portion 54b, and a pair of protrusions that protrude radially outward from both circumferential ends of the band portion 54d. A piece 54e, a bolt 54f inserted into the hole of the protruding piece 54e, and a nut 54g screwed into the bolt 54f inserted into the hole of the two protruding pieces 54e are provided. However, the configuration of the bolt nut fixing member 54c is not limited to the above, and can be changed as appropriate.

The expansion member 54 according to the fifth embodiment described above also has the same half-split structure as in the fourth embodiment, and is attached to the reinforcing bar 2 from a direction intersecting the direction in which the reinforcing bar 2 extends. Therefore, since the expansion member 54 can be attached to the reinforcing bar 2 afterwards, the same effect as the fourth embodiment can be obtained. Further, by joining the first half portion 54a and the second half portion 54b with the bolt nut fixing member 54c, the first half portion 54a and the second half portion 54b can be easily fixed to the reinforcing bar 2.

(Sixth Embodiment)
Next, the compaction member 61 according to the sixth embodiment will be described with reference to FIG. 7. The compaction member 61 includes an expansion member 64 having a half-split structure, as in the fourth and fifth embodiments. Therefore, the expansion member 64 includes the same first half 64a and second half 64b as described above. Further, the shape of the first half portion 64a of the expansion member 64 is different from that of the fourth and fifth embodiments.

As shown in FIG. 7, the first half 64 a has a protrusion 65 protruding from the surface 64 d of the expansion member 64. The protrusion 65 has a shape that protrudes in a curved shape from the surface 64d, and protrudes, for example, in a parabolic shape or an arc shape. The protrusion 65 is provided to prevent the mold 10 from approaching the reinforcing bar 2, and contacts the inner surface of the mold 10, for example. The projection 65 is provided to make the distance between the formwork 10 and the reinforcing bar 2, that is, the cover D of the cast concrete C, a predetermined length or more. In this way, the protrusion 65 defines the distance between the form 10 and the reinforcing bar 2. Therefore, the height H, which is the protruding height of the protrusion 65 with respect to the surface 64d, has a predetermined value, and is determined according to the required length of the overcoat D.

As described above, the expansion member 64 according to the sixth embodiment has the protrusion 65 that faces the formwork 10 when embedded in the concrete C. In this way, since the expansion member 64 has the projection 65 facing the formwork 10, the projection 65 functions as a spacer that secures the distance between the formwork 10 and the reinforcing bar 2, and the concrete C cast by the projection 65 is placed. The overcoat D can be secured. Further, in the sixth embodiment, since the expansion member 64 that widens the compaction range can also be used as a spacer, it is possible to eliminate the work of disposing a separate spacer. Therefore, the work amount of placing and compacting the concrete C can be further reduced, so that the work can be performed more easily.

Although the expansion member 64 having the half-split structure has been described above, the expansion member need not have the half-split structure in the sixth embodiment. That is, it is possible to form the protrusion 65 on the expansion member 4 that does not have a half-split structure.

(Seventh embodiment)
Next, the compaction member 71 according to the seventh embodiment will be described with reference to FIG. In the seventh embodiment, the shape of the reinforcing bar 72 is different from that in each of the above-described embodiments. The reinforcing bar 72 includes a general portion 32a similar to that of the third embodiment, and a plurality of branch portions 72b branching in a plurality of directions at the lower end of the general portion 32a. In the example of FIG. 8A, each branch part 72b extends perpendicularly to the general part 32a, and three sets of branch parts 72b extending left and right from the general part 32a are provided vertically. The expansion member 4 of each of the above-described embodiments is attached to the tip of each branch 72b.

As described above, in the compaction member 71 according to the seventh embodiment, since the expansion member 4 is attached to each branch portion 72b that is branched so as to spread from the general portion 32a, the range of vibration that spreads in the concrete C is reduced. It can be expanded further. Further, with the compaction member 71, the compaction range of the concrete C can be made wider, and by inserting the branch part 72b into the narrow part, the compaction range can be expanded even in a place where vibration is difficult to reach. it can.

(Eighth Embodiment)
FIG.8(b) has shown the compaction member 81 which concerns on 8th Embodiment. As shown in FIG. 8B, the compaction member 81 includes a reinforcing bar 82 having a shape different from those of the above-described embodiments. The reinforcing bar 82 includes the same general portion 32a as described above, and a lattice-shaped portion 82b formed in a lattice shape (mesh shape) at the lower end of the general portion 32a. In the example of FIG. 8B, the lattice-shaped portion 82b connects three vertical stripes 82c extending in the same direction as the general portion 32a and each vertical stripe 82c and extends in the direction perpendicular to the general portion 32a. It includes three horizontal stripes 82d. The above-described expansion member 4 is attached to the corners of the lattice-shaped portion 82b and the central portion of the lattice-shaped portion 82b.

The compaction member 81 according to the eighth embodiment includes a lattice-shaped portion 82b extending from the general portion 32a, and the expansion member 4 is attached to the lattice-shaped portion 82b. Therefore, it is possible to further widen the range in which the vibration is spread in the concrete C. Therefore, similarly to the seventh embodiment, the compaction range of the concrete C can be further widened.

Although the embodiments have been described above, the present invention is not limited to the above-described embodiments. That is, it is easily recognized by those skilled in the art that various modifications and changes can be made within the scope of the gist of the present invention described in the claims.

For example, in the above-described embodiment, an example in which a reinforcing bar other than the structural reinforcing bar is used as the reinforcing bar to which the expansion member is attached has been described, but each reinforcing bar described above may be the same structural reinforcing bar as the reinforcing bar 12. Further, the diameter of the reinforcing bar to which the expansion member is attached and the diameter of the expansion member are not limited to the values described above. Furthermore, as the member to which the expansion member is attached, a rod-shaped steel material other than the reinforcing bar can be used. However, the reinforcing bar has an advantage that it is more easily available than other rod-shaped steel materials.

Further, in the above-described embodiment, the example in which the vibrator 3 is provided at one end (upper end) of the reinforcing bar 2 has been described, but the place where the vibrator 3 is provided may be a position other than one end of the reinforcing bar 2.

Further, in the above-described embodiment, an example in which the expansion member is a cement-based material has been described, but the expansion member can be made of a material other than the cement-based material.

Further, in the above-described embodiment, an example in which the expansion member 4 has a cylindrical shape has been described, but the expansion member 4 may have a shape other than the cylindrical shape. Further, in the above-described embodiment, an example in which the expansion member 4 is attached to the other end of the reinforcing bar 2 has been described, but the expansion member 4 may be attached to a position other than the other end of the reinforcing bar 2.

Further, in the above-described embodiment, the mold 10 having the haunch portion 11 and the reinforcing bar 12 provided inside the mold 10 have been described, but the shape of the mold and the arrangement of the reinforcing bars in the mold are also described. It can be changed as appropriate.

1, 21, 31, 41, 51, 61, 71, 81... Compacting member, 2, 12, 32, 72, 82... Reinforcing bar, 3, 3A, 3B... Vibrator, 3a... Vibrating section, 3b... Cable, 3d ... Attachment jig, 4, 24, 44, 64... Expansion member, 4a... Outer periphery, 10... Formwork, 11... Haunch part, 12a... Vertical bar, 12b... Horizontal bar, 13... Haunch part formwork, 14... Haunch bar , 32a... General part, 32b... Bent part, 44a, 54a, 64a... First half part, 44b, 54b, 64b... Second half part, 44c... Binding band, 54c... Bolt nut fixing member, 54d... Band part, 54e... Projecting piece, 54f... Bolt, 54g... Nut, 64d... Surface, 65... Projection, 72b... Branch part, 82b... Lattice part, 82c... Vertical bar, 82d... Horizontal bar, C... Concrete, R1, R2... Diameter , Θ1... Bending angle, θ2... Inclination angle.

Claims (7)

A compaction member for compacting the concrete by vibrating the cast concrete,
A rod-shaped steel material embedded in the concrete,
A detachable vibrator attached to the steel material and transmitting vibrations to the concrete through the steel material, and attached to a portion not embedded in the concrete,
An expansion member that is attached to a portion of the steel material that is embedded in the concrete, and has a thickness that is thicker than the thickness of the steel material and that is buried in the concrete.
Equipped with
The steel material and the expansion member from which the vibrator has been removed are buried in the concrete ,
Compaction member. The expansion member is composed of a fiber-reinforced cementitious material,
The compaction member according to claim 1. The expansion member is attached to a plurality of locations of the one steel material,
The compaction member according to claim 1 or 2. The steel material has a bent portion that is bent with respect to a portion to which the vibrator is attached,
The expansion member is attached to the bent portion,
The compaction member according to any one of claims 1 to 3. The expansion member has a half-structure, and is attached to the steel material from a direction intersecting a direction in which the steel material extends,
The compaction member according to any one of claims 1 to 4. The compaction member according to any one of claims 1 to 5, wherein the expansion member has a protrusion facing the formwork when the expansion member is embedded in the concrete. A compaction method for compacting concrete using the compaction member according to claim 1.
Burying the steel material to which the expansion member is attached in the concrete together with the expansion member,
Attaching the vibrator to the steel material,
Vibrating the vibrator, and transmitting the vibration of the vibrator to the concrete through the steel material and the expansion member,
A compaction method comprising.

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