JP2004197328A - Wall and construction method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall whose construction time can be shortened and a construction method therefor. <P>SOLUTION: Concrete blocks 10 constituting both faces of a wall to be constructed, respectively, are laid oppositely so as to form a space 19 therebetween and a regulation member 60 preventing the space 19 from widening in the wall thickness direction is stuck astride between the two concrete blocks 10. Thereafter, grout is placed in the space 19. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wall using a concrete block and a method for constructing the wall.
[0002]
[Prior art]
As a conventional construction method for adding an earthquake-resistant reinforcing wall to an existing building, a method of adding a concrete block inside a column-beam frame of the existing building to add a wall is known. Concretely, concrete blocks constituting both sides of the wall to be constructed are laid facing each other so that a space is formed therebetween, and thereafter, a grout material is poured into the space. This is a method of adding a wall (for example, see Non-Patent Document 1).
[0003]
However, when the grout is cast, the pressure of the grout (hereinafter referred to as lateral pressure) acts in a direction to widen the space between the opposing concrete blocks. If the lateral pressure is large, the masonry concrete blocks may be moved in the direction in which the space spreads. Here, the lateral pressure is, so to speak, a hydraulic pressure based on the weight of the grout. Therefore, the greater the amount of the grout material poured at a time, the greater the lateral pressure, and the masonry concrete block becomes easy to move.
[0004]
For this reason, at the work site, the amount of grout material that can be cast at one time is limited. That is, when the total height of the grout material is increased due to a high wall height, the grout material is not divided at once but divided into plural times. For example, when constructing a wall consisting of twelve steps of concrete blocks, first grout the grout material to three steps, wait for the grout material to harden, and then cast the grout material to three steps above it. And this procedure is repeated up to the top.
[0005]
[Non-patent document 1]
Kohei Kurita and four others, "Development of additional earthquake-resistant wall construction method using small precast blocks (part 2)", 2002 Architectural Institute of Japan Abstracts of Science Lectures, C-2 Volume, p. 687
[0006]
[Problems to be solved by the invention]
However, in this method of limiting the amount of casting, the grout material has to wait for the hardening of the grout material a plurality of times, so that the construction time is prolonged and the construction period is prolonged.
The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a wall capable of shortening the construction time and a method of constructing the wall.
[0007]
[Means for Solving the Problems]
In order to achieve this object, an invention according to claim 1 is a method of constructing a wall using a concrete block, wherein concrete blocks constituting both sides of a wall to be constructed are formed with a space therebetween. In such a manner as to oppose each other, a restricting member for restricting the space from spreading in the wall thickness direction is attached so as to straddle between two concrete blocks forming the space, and thereafter, the space is It is characterized in that a grout material is cast on the surface.
[0008]
According to the invention, before the grout material is cast, the regulating member is attached so as to straddle between two concrete blocks forming a space for the grout material. Therefore, when the grout material is poured into the space, the regulating member effectively receives and opposes the side pressure acting on the concrete block in a direction in which the space is expanded due to the liquid pressure of the grout material. Thus, the concrete block is prevented from moving. Therefore, even when the wall height is high and the amount of the grout material to be cast is large, the grout material can be cast at once without being divided into a plurality of times, thereby shortening the construction time.
Also, the work of attaching the regulating member to the concrete block can be performed in a short time because it can be simply performed by sticking it to the concrete block.
[0009]
The invention according to claim 2 is a method for constructing a wall using a concrete block for increasing the thickness of an existing wall, wherein the concrete wall is opposed to the existing wall so as to form a space between the existing wall and the concrete block. Along with masonry of the blocks, a regulating member for regulating the space from spreading in the wall thickness direction is attached so as to straddle between the existing wall forming the space and the concrete block, and then grouted in the space. It is characterized in that the concrete block is cast and the concrete block is integrated with the existing wall.
[0010]
According to the above invention, before the grout material is cast, the regulating member is attached so as to straddle between the existing wall forming the space for the grout material and the concrete block. Therefore, when a grout material is cast into the space, due to the liquid pressure of the grout material, the restricting member effectively receives and counteracts the side pressure acting on the concrete block in a direction in which the space is expanded, This prevents the concrete block from moving. Therefore, even when the wall height is high and the amount of the grout material to be cast is large, the grout material can be cast at once without being divided into a plurality of times, thereby shortening the construction time. In addition, since the work of attaching the regulating member to the existing wall and the concrete block can be simply performed by simply attaching the regulating member to both of them, it can be performed in a short time.
[0011]
According to a third aspect of the present invention, in the wall construction method according to the first or second aspect, the regulating member is a sheet-shaped member.
According to the above invention, since the regulating member is a sheet-like member, the regulating member can be attached even in a narrow place, so that the degree of freedom in selecting the attaching position is long.
[0012]
According to a fourth aspect of the present invention, in the method of constructing a wall according to any one of the first to third aspects, the regulating member is selectively provided on a concrete block of a predetermined step.
According to the above invention, the regulating member is not provided for the concrete blocks of all the steps. Therefore, the operation time for attaching the regulating member can be shortened, and the construction period can be shortened.
[0013]
According to a fifth aspect of the present invention, in the method for constructing a wall according to any one of the first to fourth aspects, the concrete block includes a flat plate-shaped body forming a wall surface and a projection protruding from a back surface of the plate-shaped body. And the concrete block is disposed with its protrusion directed toward the inside of the wall to be constructed.
According to the above invention, since the protrusion of the concrete block is directed toward the inside of the wall to be constructed, the space in which the grout is cast is a space in which the protrusion protrudes. Therefore, the adhesion area between the grout material and the concrete block cast in the space can be increased, and both can be reliably adhered to each other, so that the strength and rigidity of the wall can be increased.
[0014]
According to a sixth aspect of the present invention, in the wall construction method according to any one of the first to fifth aspects, the regulating member is made of fiber reinforced plastic.
According to the above invention, since the regulating member is made of fiber reinforced plastic, the regulating member has rigidity and strength enough to oppose the lateral pressure acting when the grout material is cast. Therefore, it is possible to reliably prevent the concrete block from moving during the casting.
[0015]
An invention according to claim 7 is a wall constructed by the method according to any one of claims 1 to 6.
According to the above invention, the same operation as the inventions of claims 1 to 6 can be obtained.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
=== First Embodiment ===
The present invention relates to a wall constructed by masonrying concrete blocks and a method for constructing the same. In the first embodiment, a case where an earthquake-resistant reinforcing wall is added to an existing building will be described as an example.
FIG. 1 is a diagram showing an expanded seismic reinforcement wall, FIG. 1 (a) is a front view showing a part of the block is cut away, and FIG. 1 (b) is FIG. 1 (a). It is sectional drawing in the BB line arrow. FIG. 2 is an enlarged view of a portion II in FIG. However, in order to prevent the figure from being difficult to see, FIGS. 1B and 2 do not show cross-sectional lines of the grout material portion, and FIG. 1B also shows wall streaks. Absent. In the following description, the wall thickness direction of the seismic reinforcement wall is also referred to as the front-rear direction, the wall width direction is also referred to as the left-right lateral direction, and the height direction is referred to as the up-down direction.
[0017]
As shown in FIG. 1, this reinforced seismic wall is formed by assembling a large number of concrete blocks 10 inside a column-beam frame including a pair of right and left columns 2 and 2 and a pair of upper and lower beams 4 provided in an existing building. The wall 30 is constructed by stacking. Both the column 2 and the beam 4 are made of reinforced concrete (RC structure), and both ends thereof are integrally connected by a column-beam connection structure. The columns 2 and the beams 4 are not limited to the RC structure as long as the surface layer is concrete, and may be, for example, a steel concrete structure (SRC structure).
[0018]
The wall 30 is mainly composed of block walls 32 and 42 formed by masonrying small precast concrete blocks 10 (hereinafter, referred to as blocks) in the height direction and the wall width direction. As shown in FIG. 1B, the block walls 32 and 42 are provided facing each other before and after in the wall thickness direction. A space 19 is formed between the pair of block walls 32 and 42, and in this space 19, as shown in FIG. At the same time, the grout material 19a is densely filled, whereby the block walls 32 and 42 are integrated as the wall 30. The shape of the block 10 and the method of masonry will be described in a construction procedure described later.
[0019]
The fixing of the wall 30 to the beam-column structure is performed by fixing steel members 52, 52, 54, 56 such as channel steel adhered to the inner peripheral surfaces 2a, 4a of the beam-column frame shown in FIG. More specifically, for each of the left and right pillars 2 and the upper and lower beams 4, an anchoring steel material 52, 52, 54, 56 having substantially the same length as that of the inner method is applied to the epoxy resin adhesive while aligning the longitudinal direction. It is glued in. The bonding positions of the anchoring steel members 52, 52, 54, 56 in the column-beam frame are aligned with each other in the wall thickness direction, so that these anchoring steel members 52, 52, 54, 56 are arranged on the four sides of the wall 30. They are arranged so as to face the end faces. From these anchoring steel members 52, 52, 54, 56, inward anchoring bars 58 project at the arrangement pitch of the wall bars 6, 8, and the anchoring bars 58 move before the grouting material 19a is cast. The wall 30 is integrated with and fixed to the column-beam frame by being connected to the wall bars 6, 8 by welding or the like. As shown in FIG. 2, the fixing streaks 58 are fixed to the fixing steel members 52, 52, 54, 56 by connecting the male screws of the nuts 51 welded to the fixing steel members 52, 52, 54, 56 to the male screws. This is done by screwing one end of the fixing streaks 58 that have been threaded.
[0020]
Of the anchoring steel members 52, 52, 54, and 56, it is desirable to use flat steel instead of the above-described channel steel, particularly for the anchoring steel member 56 provided on the lower beam 4. This is because, in the lower beam 4, since the blocks are laid on the anchoring steel material 56, it is difficult to mount the blocks with ribs such as channel steel. The flat steel 56 has low rigidity and low adhesive strength due to the absence of the ribs as compared with the channel steel, but this can be dealt with by increasing the thickness of the steel material.
[0021]
Further, it is preferable that the steel material width, which is the dimension in the wall thickness direction of the fixing steel materials 52, 52, 54, 56, is at least as thick as the wall 30. This is because the anchoring also depends on the adhesion between the anchoring steel members 52, 52, 54, 56 and the beam-column frame.
[0022]
Here, a construction procedure of the earthquake-resistant reinforcing wall 30 will be described. 3 to 6 are explanatory diagrams for explaining the construction procedure. In each of the drawings, (a) is a front view, and (b) is a view taken along line BB in (a). FIG. However, the wall streaks and anchor streaks are not shown in FIGS.
[0023]
−−− (1) Installation of anchored steel to beam-column structure −−−
First, as shown in FIG. 3, the fixing steel members 52, 52, 54, 56 are adhered to each of the left and right columns 2 and the upper and lower beams 4 constituting the column-to-column frame with an epoxy resin adhesive. The flat beam 56 is bonded to the lower beam 4, and the channel steels 52, 52, 54 are bonded to the other columns 2, 2, and 4, respectively. Then, the fixing streaks 58 are screwed into the nuts 51 of the fixing steel members 52, 52, 54, 56, and these fixing streaks 58 are fixed inwardly to the column-beam frame. Then, only the vertical streaks 6 (shown by broken lines in the drawing) of the wall streaks 6 and 8 are arranged. These vertical stripes 6 are arranged at positions that can be stored in a central space 18 or a communication space 20 formed in a wall body 30 described later, and are vertically passed through. It is welded to the fixing streaks 58,58. Note that the arrangement timing of the vertical streaks 6 is not limited to this, and may be performed, for example, in parallel with the masonry work of the block 10 described later. However, in the present embodiment, since the vertical streaks 6 are arranged between the pair of block walls 32 and 42, even if the vertical streaks 6 are arranged before the blocks 10 are laid, the masonry is In order to prevent the workability from deteriorating at all, the work is performed at a timing before the masonry.
[0024]
--- (2) Formation of a pair of block walls ---
Next, the block 10 is assembled inside the anchoring steel members 52, 52, 54, 56, and finally, a pair of block walls 32, 42 are formed in front and rear in the wall thickness direction as shown in FIG. Form. In the following, of the pair of block walls 32, 42, the block wall 32 located forward is referred to as a front block wall, and the block wall 42 located rearward is referred to as a rear block wall.
[0025]
7 to 9 show blocks provided for the block wall. 7 is a bottom view, FIG. 8 is a rear view, and FIG. 9 is a side view. FIG. 10 is a perspective view of a block wall in the middle of masonry.
[0026]
The block 10 includes a block body 12 and a pair of protrusions 14 protruding from a back surface of the block body 12. The block body 12 is a substantially rectangular plate having a flat surface 12a. When the block wall is constructed by assembling the blocks 10 as shown in FIG. To form As shown in FIG. 9, the protrusion 14 has an upper surface 14 c and a lower surface 14 d formed flush with the block main body 12, so that the weight of the block 10 is also supported by the protrusion 14 at the time of the stacking.
[0027]
As shown in FIG. 7, a pair of the protrusions 14 is provided at an interval in the left-right direction, and a central space 18 is formed therebetween. The protrusions 14 are provided inside the left and right ends 12b of the block body 12, and when the blocks 10 are arranged side by side in a horizontal direction as shown in FIG. A common space 20 is formed between the projection 14 and the projection 14. The central space 18 and the common space 20 communicate with each other up and down in the state where the block walls 32 and 42 are formed as shown in FIG. It is supposed to. In addition, the width of the common space 20 and the central space 18 is formed sufficiently wider than the width of the protrusion 14.
[0028]
The formation of the front and rear block walls 32 and 42 using such a block 10 is performed as follows.
First, as shown in FIG. 4, the lowermost (first) block row 32a of the front block wall 32 is arranged. That is, as shown in FIG. 11 (enlarged view of a portion XI in FIG. 4B), while aligning the flat surface 12a of the block body 12 with the front edge 56a of the flat steel 56 which is the anchoring steel material of the lower beam 4, The blocks 10 are sequentially arranged in the left and right lateral directions from the left pillar 2 to the right pillar 2. At this time, the ends 12b of the blocks 10 adjacent to the left and right are adhered to each other, and the lower surface of the block 10 is adhered to the upper surface of the flat steel 56. These bonds are made with an epoxy resin adhesive.
[0029]
Next, as shown in FIG. 4B, a first block row 42a of the rear block wall 42 is formed to face the front block row 32a. That is, as shown in FIG. 11, while aligning the flat surface 12a of the block main body 12 with the rear edge 56b of the flat steel 56, the blocks 10 are sequentially arranged in the left and right lateral directions. At this time, the projection 14 of the rear block 10 is disposed so as to face the projection 14 of the front block 10. The bonding between the ends 12b of the blocks 10 adjacent to the left and right and the bonding on the flat steel 56 on the lower surface of the block 10 are performed in the same manner as in the case of the above-described front block row 32a.
[0030]
Next, as shown in FIG. 11 and FIG. 12, a band-shaped sheet 60 as a regulating member is attached so as to straddle the front block 10 and the rear block 10 facing each other, and the front and rear blocks are attached. 10 are regulated so as not to be separated from each other in the wall thickness direction. More specifically, while aligning the longitudinal direction of the belt-shaped sheet 60 with the wall thickness direction, one end in the longitudinal direction of the belt-shaped sheet 60 is attached from the upper surface of the front block body 12 to the upper surface of the protrusion 14, and the other end thereof. Is attached from the upper surface of the block body 12 on the rear side to the upper surface of the protrusion 14. By sticking in this manner, the belt-shaped sheet 60 can be effectively opposed to a lateral pressure at the time of grouting, and the movement of the block 10 in the wall thickness direction can be surely restricted. That is, when a grout material is cast into the space 19 between the front and rear block walls 32 and 42 formed as shown in FIG. 6, the space 19 is expanded in each block 10 in the wall thickness direction. Pressure (side pressure) acts in the direction, and the block 10 may move depending on the adhesive strength of the adhesive. However, if the longitudinal direction of the belt-shaped sheet 60 is aligned in the wall thickness direction as described above, the belt-like sheet 60 is effectively prevented from twisting, and the tensile rigidity of the belt-like sheet 60 effectively resists the lateral pressure. Therefore, the movement of the block 10 can be reliably prevented.
[0031]
As a material of the belt-shaped sheet 60, any material can be used as long as it has rigidity and strength capable of withstanding the lateral pressure, but fiber-reinforced plastics such as CFRP (carbon fiber reinforced plastics) and steel are particularly suitable. . The sheet thickness is preferably as thin as possible. This is because the belt-shaped sheet 60 is attached to the upper surface of the block 10 and the next block 10 is stacked. That is, if the step of attaching the belt-shaped sheet 60 on the upper surface of the block 10 becomes large, the masonry stability of the block 10 at the time of multi-stage stacking becomes poor. Generally, a thickness of 0.5 to 1.5 mm is acceptable. Further, the sheet length and width are appropriately set in consideration of the wall thickness and the adhesion area of the wall body 30 to be constructed.
[0032]
It is not always necessary to attach the belt-shaped sheet 60 to all the blocks 10 in the lateral direction, and only to the blocks 10 in which the adhesive strength between the blocks 10 may be reduced by the lateral pressure. It may be provided selectively. In this way, the time required for attaching the belt-shaped sheet 60 can be reduced. The position where the belt-shaped sheet 60 is attached is not limited to the above-described upper surface of the block body 12 and the upper surface of the protrusion 14, but may be the left and right side surfaces of the block body 12 or the left and right side surfaces of the protrusion 14.
[0033]
When the first-stage block rows 32a and 42a are arranged in this way, the second-row block rows 32a and 42a are stacked on top of this, but before that, as shown in FIG. 4A and FIG. As described above, the horizontal streaks 8 (shown by broken lines in FIG. 4A) for the second-stage block rows 32a and 42a are arranged. FIG. 13 is a cross-sectional view taken along the line XIII-XIII in FIG. 11, and the horizontal streak 8 is passed through the concave portion 16 on the lower surface of the protrusion 14 of the second-stage block 10. As shown in FIG. 11, the horizontal streaks 8 are arranged so as to span right and left, and the left and right ends thereof can be welded to the fixing streaks 58 of the left and right columns 2. In FIG. 13, the virtually arranged second-stage block rows 32 a and 42 a are indicated by two-dot chain lines.
[0034]
After this arrangement, the second row of blocks 32a and 42a are stacked as shown in FIG. 5. In this case, the ends 12b of the blocks 10 adjacent to the left and right are bonded together as described above, and The lower surface of the block 10 is bonded to the upper surface of the lower first block 10. Further, as shown in FIG. 14 (enlarged view of the XIV portion in FIG. 5B), the attachment of the belt-shaped sheet 60 and the arrangement of the horizontal streaks 8 for the third row of block rows are the same as those in the first step. Do the same. In FIG. 14, the first-stage block rows 32a and 42a are indicated by alternate long and short dash lines.
[0035]
However, it is not necessary to apply the band-shaped sheet 60 to all the steps, and it is selectively provided only to the step where the adhesive strength between the blocks may be defeated by the lateral pressure. Is also good. For example, in some cases, the second row of blocks 32a and 42a may be omitted. In this manner, the time required for attaching the belt-shaped sheet 60 can be further reduced.
[0036]
In addition, in this stacking, from the viewpoint of the strength of the wall body 30, vertical joints, which are bonding portions between the left and right blocks 10, are prevented from being aligned between the upper and lower block rows 32a (42a). . That is, as shown in FIG. 14, the second-stage block rows 32a and 42a are placed from the first-stage block rows 32a and 42a while being laterally shifted by about half of the width of the protrusion 14, and thereafter, The odd-numbered joints are aligned with the first-stage 32a, 42a, and the even-numbered joints are aligned with the second-stage 32a, 42a. When the stacking is repeated and the block rows 32a, 42a reach the vicinity of the anchor steel 54 of the upper beam 4, the formation of the front and rear block walls 32, 42 is completed.
[0037]
−−− (3) Casting of grout material −−−−
Finally, a grout material such as a non-shrink mortar is poured into the space 19 between the front and rear block walls 32 and 42 shown in FIG. The grouting is performed by utilizing a gap S formed between the uppermost block row 32a, 42a and the anchoring steel 54 of the upper beam 4. That is, since the block 10 is a standard product formed in a predetermined standard size, the masonry height of the block 10 rarely coincides with the opening height of the beam-column frame of the existing building. In this case, there is a gap S between the uppermost block row 32 a, 42 a and the anchor steel 54 of the upper beam 4. Therefore, the grout material is filled into the space 19 from the gap S, and the wall 30 is constructed by integrating the block walls 32 and 42 on the front side and the rear side.
[0038]
Note that the gap S is filled by formwork. That is, before the grout material is cast, a dam plate is leaned against the fixing steel material 54 near the gap S and the uppermost block rows 32a, 42a while leaving the grout material inlet portion, thereby forming the gap S. To close. At the same time as the grout material is poured into the space 19 between the block walls 32 and 42, the gap S is also filled with the grout material.
[0039]
Incidentally, as described above, when the grout is cast, a side pressure is applied to the block 10 to open the space 19 in the wall thickness direction, and the band-shaped sheet 60 effectively receives the side pressure and opposes. Thus, the movement of the block 10 can be prevented. Therefore, all the grout materials can be cast at once, thereby shortening the construction time.
[0040]
=== Second Embodiment ===
15A and 15B are views showing a seismic reinforcement wall according to the second embodiment, in which FIG. 15A is a front view showing a part of the block cut away, and FIG. It is sectional drawing in the BB line arrow in (a). Note that FIG. 15B does not show the cross-sectional lines and wall streaks of the grout material. In the figure, the same components as those of the first embodiment are denoted by the same reference numerals, and the description of the same components will be omitted.
[0041]
In the above-described first embodiment, the seismic reinforcement wall 30 is added to the column-beam frame to reinforce it. In the second embodiment, the existing wall 5 provided in the column-beam frame is increased in advance. It is to reinforce. That is, in the second embodiment, the existing wall 5 is provided inside the column-beam frame instead of the rear block wall 42 according to the first embodiment. Then, one block wall 32 is masonically formed while facing the existing wall 5, and the grout material 19 a is cast into the space 19 between the block wall 32 and the existing wall 5 to form An integrated wall 31 is constructed.
[0042]
When the grout material 19a is cast, a lateral pressure acts on each block 10 of the block wall 32 in the wall thickness direction, as in the first embodiment. Reference numeral 60 is attached to prevent the block 10 from moving. However, the method of attachment is different from that of the first embodiment, and the differences will be mainly described below.
[0043]
FIG. 16 and FIG. 17 show a state where the first-stage block rows are arranged. 16 is a plan view, and FIG. 17 is a cross-sectional view taken along the line XVII-XVII in FIG.
[0044]
As shown in FIG. 15, an existing RC wall 5 is erected beforehand inside the column-beam frame. In addition, anchoring steel members 53, 53, 55, and 56 are arranged on the inner periphery of the beam-column structure along the existing wall 5 so as to reinforce the thickness. The flat steel is used for the anchoring steel material 56 of the lower beam 4 as described above, but the angle steel is used for the anchoring steel materials 53 and 55 of the column 2 and the upper beam 4. Then, as shown in FIG. 16, a first-stage block row 32a is arranged on the upper surface of the flat steel 56, similarly to the front block row 32a of the first embodiment. That is, along the front edge 56a of the flat steel 56, the blocks 10 are sequentially arranged in the left and right lateral directions from the left column 2 to the right column 2 while aligning the flat surface 12a of the block body 12. ing. In this aligned state, the protrusions 14 of each block 10 are arranged so as to face the existing wall 5, and the central space 18 and the common space 20 are provided between the block row 32 a and the existing wall 5. Is formed.
[0045]
As shown in FIGS. 16 and 17, the band-shaped sheet 60 is attached so as to straddle between the existing wall 5 forming the space 19 and the block 10. In detail, while the longitudinal direction of the band-shaped sheet 60 is aligned with the wall thickness direction, one end in the longitudinal direction is attached from the upper surface of the block body 12 to the upper surface of the protrusion 14, and the other end is an existing one. It is attached to an angle member 62 provided on the wall 5. The angle member 62 is a steel member having an L-shaped cross section including a horizontal piece 62a and a vertical piece 62b, and the vertical piece 62b is fixed to the wall surface 5a of the existing wall 5 by an epoxy resin adhesive or an anchor. ing. On the other hand, the other end of the strip-shaped sheet 60 is attached to the upper surface of the horizontal piece 62a with the adhesive. The height of the upper surface of the horizontal piece 62a is adjusted so as to be the same as the upper surface of the block 10. Therefore, the horizontal member 62a is stuck between the upper surface of the horizontal member 62a of the angle member 62 and the upper surface of the block 10. When attached, the belt-like sheet 60 is horizontal. For this reason, at the time of casting the grout material, only the tensile force acts on the belt-shaped sheet 60 without the torsion force or the like acting thereon, so that it is possible to effectively counter the lateral pressure of the grout material. .
[0046]
It should be noted that the lamination of the band-shaped sheet 60 does not necessarily have to be performed on all the blocks 10 in the horizontal direction, and it is not necessary to perform the lamination on the block rows in all the stages. Is the same as
[0047]
The embodiments of the present invention have been described above. However, the present invention is not limited to the embodiments, and the following modifications can be made without departing from the gist of the present invention.
[0048]
(A) In the present embodiment, as a block to be used for masonry, a specially shaped block 10 having a plate-shaped block main body 12 and a pair of protrusions 14 protruding from its back surface is exemplified. The shape is not limited to this. For example, a block having a general shape including a pair of face shells and a web connecting them may be used.
[0049]
(B) In the present embodiment, a case where an earthquake-resistant reinforcing wall is added to an existing building or a case where the thickness thereof is increased has been described as an example. However, the application target of the wall and the wall construction method of the present invention is not limited to this. Absent. For example, the present invention may be applied to a wall of a newly-built building, or may be applied to a simple wall which does not exhibit earthquake resistance. Further, the present invention may be applied to an outdoor wall having no column-beam structure.
[0050]
(C) In the present embodiment, a fixing steel material that adheres to and fixes on the column-beam frame is used for fixing the wall body to the column-beam frame. However, the present invention is not limited to this. For example, a post-installation anchor may be cast on the column-beam frame to secure the wall and the beam-column frame.
[0051]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a wall capable of shortening the construction time and a method for constructing the wall.
[Brief description of the drawings]
FIG. 1 is a view showing an earthquake-resistant reinforcing wall according to a first embodiment of the present invention, wherein FIG. 1 (a) is a front view showing a part of the block cut away, and FIG. FIG. 2 is a sectional view taken along line BB in FIG.
FIG. 2 is an enlarged view showing a portion II in FIG. 1 (a).
FIG. 3 is an explanatory diagram for describing a procedure for constructing an earthquake-resistant reinforcing wall according to the first embodiment.
FIG. 4 is an explanatory diagram for describing a procedure for constructing an earthquake-resistant reinforcing wall according to the first embodiment.
FIG. 5 is an explanatory diagram for explaining a procedure for constructing an earthquake-resistant reinforcing wall according to the first embodiment.
FIG. 6 is an explanatory diagram for explaining a procedure for constructing an earthquake-resistant reinforcing wall according to the first embodiment.
FIG. 7 is a bottom view of a block provided for the earthquake-resistant reinforcing wall according to the first embodiment.
FIG. 8 is a rear view of FIG. 7;
FIG. 9 is a side view of FIG. 7;
FIG. 10 is a perspective view showing a block wall in the middle of masonry.
FIG. 11 is an enlarged view of a portion XI in FIG. 4 (b).
FIG. 12 is a perspective view of FIG.
FIG. 13 is a sectional view taken along the line XIII-XIII in FIG. 11;
FIG. 14 is an enlarged view of a portion XIV in FIG. 5 (b).
FIG. 15 is a view showing a seismic reinforcement wall according to a second embodiment of the present invention, wherein FIG. FIG. 16 is a sectional view taken along line BB in FIG.
FIG. 16 is a plan view showing a state in which first-stage block rows according to the second embodiment are arranged.
17 is a sectional view taken along the line XVII-XVII in FIG. 16;
[Explanation of symbols]
2 pillars
4 beams
10 blocks, precast concrete blocks (concrete blocks)
19 Space
19a grout material
30 wall
32 Front Block Wall
42 Back block wall
60 belt-shaped sheet, regulating member

Claims (7)

A method of constructing a wall using a concrete block,
Concrete blocks constituting both sides of the wall to be constructed are masonry facing each other so that a space is formed therebetween, and a regulating member for regulating the space from expanding in the wall thickness direction, A method of constructing a wall, characterized in that the wall is attached so as to straddle between two concrete blocks forming the space, and thereafter, a grout material is poured into the space. A method for constructing a wall using a concrete block for thickening an existing wall,
A concrete block is masonry facing the existing wall so as to form a space between the existing wall and a regulating member for regulating the space from spreading in the wall thickness direction. A method for constructing a wall, wherein the method is applied so as to straddle between a wall and a concrete block, and thereafter, a grout material is poured into the space to integrate the concrete block with an existing wall. 3. The method according to claim 1, wherein the regulating member is a sheet-like member. The method according to any one of claims 1 to 3, wherein the regulating member is selectively provided on a concrete block of a predetermined step. 5. The method of constructing a wall according to claim 1, wherein the concrete block has a flat plate-shaped body forming a wall surface and a protrusion protruding from a back surface of the plate-shaped body. 6. A method wherein the blocks are arranged with their protrusions facing the inside of the wall to be built. The method according to any one of claims 1 to 5, wherein the regulating member is made of fiber reinforced plastic. A wall constructed by the method according to claim 1.

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