JP5291643B2 - How to build a wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for constructing a wall, which can shorten a construction period. <P>SOLUTION: This method for constructing the wall 1 by vertically juxtaposing a plurality of wall panels 10 includes: a step of fixing a temporary supporting member 3 to the backside of the lower wall panel 10a in such a manner as to make an upper portion protrude upward with respect to an upper end of the lower wall panel 10a; a step of installing the upper wall panel 10b on the upper end surface of the lower wall panel 10a, and of fixing a protruding portion of the temporary supporting member 3 on the backside of the upper wall panel 10; a step of positioning the upper wall panel 10b while supporting the upper wall panel 10b by the temporary supporting member 3; and a step of upward extending a permanent column 2 for supporting the lower wall panel 10a, so as to be connected to the upper wall panel 10b. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a wall construction method.

  When building a wall, a precast wall panel (hereinafter simply referred to as “wall panel”) may be used to save time during construction and shorten the construction period (see, for example, Patent Document 1). ).

  A conventional wall construction method is generally performed by joining a wall panel to a structure such as a pillar or a beam constructed in advance.

Japanese Patent Laid-Open No. 9-256515

  However, in the conventional wall construction method, the wall panel is arranged after the pillar or beam is constructed. Therefore, in addition to the construction period (curing period) of the pillar or beam, the connection between the pillar and the wall panel is performed. It was necessary to secure the construction period (curing period) of the department, which hindered shortening the construction period.

  Moreover, it is necessary to attach / remove temporary members such as molds at the time of column construction and at the time of construction of the joint between the column and the wall panel, which requires time and effort.

  An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a wall construction method that can shorten the construction period.

  In order to solve the above-mentioned problem, the first wall construction method of the present invention is a method of forming a wall by arranging a plurality of wall panels in the vertical and horizontal directions, and the upper wall panel is arranged on the back of the lower wall panel. Fixing the temporary support member so as to protrude above the upper end of the lower wall panel, and installing the upper wall panel on the upper end surface of the lower wall panel, and the rear surface of the upper wall panel Fixing the projecting portion of the temporary support member to the upper surface, positioning the upper wall panel while supporting the upper wall panel with the temporary support member, and installing the temporary wall member to support the lower wall panel. And extending the column upward to connect to the upper wall panel.

  According to this wall construction method, the upper wall panel is positioned while being supported by the temporary support member fixed to the lower wall panel, and the pillar is extended after the positioning of the upper wall panel is completed. Panels and pillars can be installed easily and accurately, and in cases where inclined parts or curved parts are included, the construction period is longer than conventional wall construction methods in which wall panels are installed after the pillars are constructed. Can be shortened.

  The second wall construction method of the present invention is a method of forming a wall by arranging a plurality of wall panels side by side vertically and horizontally, and constructing a rear portion of a main pillar, A step of arranging a lowermost wall panel along, a step of constructing a front side portion of the pillar and connecting to the lowermost wall panel, a back surface of the lowermost wall panel, and an upper portion of the lowermost wall panel Fixing the temporary support member so as to protrude above the upper end of the wall panel; installing an upper wall panel on the upper end surface of the lowermost wall panel; and placing the temporary support member on the rear surface of the upper wall panel. A step of fixing the protruding portion of the support member; a step of positioning the upper wall panel while supporting the upper wall panel with the temporary support member; and an upper wall panel extending the column upward. And a step of connecting to

  According to such a wall construction method, the lowermost wall panel can be easily and accurately installed.

  Further, in the wall construction method, the upper wall panel is disposed in a state in which the other side wall panels adjacent to the left and right sides and the side end surfaces thereof are butted, and the column is a butted portion of the wall panels. You may connect to the back of the.

  According to such a wall construction method, a pillar is not exposed on the surface of the wall, and the wall surface is covered with a wall panel having a certain quality. Can be constructed easily.

  Further, a notch is formed on the back side of the end of the wall panel so that the main bar of the wall panel is exposed, and the column is formed in a state where the main bar is fixed to the column. Also good.

  According to such a wall construction method, the wall and the pillar can be easily integrated, and the workability is excellent.

  According to the wall construction method of the present invention, it is possible to construct a wall having an inclined portion and a curved portion at an early stage and at a low cost.

It is a perspective view which shows the wall which concerns on embodiment of this invention. (A) And (b) is a perspective view which shows each construction step of the construction method of the wall of FIG. (A) And (b) is a perspective view which shows the construction stage following FIG. It is a figure which shows a temporary support member, Comprising: (a) is a side view, (b) is an expansion perspective view of an upper end part. (A) is a perspective view which shows a foot | leg fixed metal fitting, (b) is sectional drawing which shows a height adjustment bolt. (A) And (b) is a perspective view which shows the construction stage following FIG. It is a top view which shows the butt | matching part of adjacent wall panels. It is a perspective view which shows the construction stage following FIG.

Embodiments of the present invention will be described with reference to the drawings.
In the present embodiment, as shown in FIG. 1, a method for constructing a wall 1 having an inclined portion will be described.

  The wall 1 is formed by arranging a plurality of wall panels 10 vertically. Moreover, the wall panel 10 is arrange | positioned in the state which faced | matched the other wall panel 10 adjacent to right and left, and the side end surfaces.

The wall 1 is supported by pillars 2 that are integrally formed along the left and right ends of the wall panel 10.
The pillar 2 is disposed across the wall panels 10 on the back of the right and left butted portions of the wall panel 10.

  The wall construction method of the present embodiment includes a pillar construction process, a lowermost wall panel placement process, a connection process, a support member fixing process, a wall panel fixing process, a positioning process, and a column extending process. ing.

  As shown in FIG. 2A, the pillar construction process is a process of constructing a rear portion of the main pillar 2 (hereinafter referred to as “post pillar 2a”).

  The column rear portion 2a is connected to the foundation via an anchor not shown. Further, the column rear portion 2a is constructed in a state where the hoop line 22 protrudes from the front surface and the main line 21 protrudes from the upper end surface. In this embodiment, the column rear portion 2a is constructed by placing cast-in-place concrete. However, a precast member may be used for the column rear portion 2a.

  As shown in FIG. 2B, the lowermost step wall panel arranging step is a step of arranging the lowermost step wall panel 10 along the front surface of the column rear portion 2a.

In this embodiment, the wall panel 10 is arrange | positioned in a predetermined position using the temporary attachment member 5 fixed to the side surface of the column rear part 2a.
Although the material and the attachment method which comprise the temporary attachment member 5 are not limited, In this embodiment, a mountain retaining material (corner piece) shall be used and one surface contact | abuts the back surface of the wall panel 10. Thus, the other surface is fixed to the side surface of the column rear portion 2a. The wall panel 10 may be disposed in front of the column rear portion 2a in a state of being supported by a machine such as a crane (not shown) or a support work.

  The panel 10 is arrange | positioned in the state which faced the other wall panel 10 adjacent to right and left, and its side end surface.

  A notch 11 is formed on the back side of the side edge of the wall panel 10. The main bar on the back side of the wall panel 10 (hereinafter referred to as “wall main bar 12”) is exposed at the notch 11. That is, the side end portion 15 of the wall panel 10 is thinner than the main body portion 14, and the wall main reinforcement 12 protrudes from the side end surface of the main body portion 14.

In this embodiment, the exposed portion of the wall main bar 12 is bent in an L shape, and the wall main bar 12 protrudes in the back direction (column 2 side) (see FIG. 7).
By arranging the wall panel 10 along the column rear portion 2 a, the L-shaped wall principal bar 12 is inserted between the hoop bars 22 of the column 2.

  As shown in FIG. 3A, the connecting step is a step of constructing a front portion of the pillar 2 (hereinafter referred to as “column front part 2 b”) and connecting the pillar 2 and the lowermost wall panel 10. .

  The column front portion 2b is constructed by placing concrete to the notch portion 11 of the wall panel 10 together with the column front portion 2b after arranging the column main bars 21. Thereby, since the pillar 2 is formed in a state where the wall main reinforcing bars 12 are involved, the integration of the wall panel 10 and the pillar 2 is realized.

  The support member fixing step is a step of fixing the temporary support member 3 to the back surface of the lowermost (or lower) wall panel 10 (hereinafter referred to as “lower wall panel 10a”), as shown in FIG. .

  The temporary support member 3 is a member made of H-shaped steel, and is fixed in a state where the temporary support member 3 is disposed on the back surface of the lower wall panel 10a so that the longitudinal direction thereof is the vertical direction.

The temporary support member 3 of the present embodiment has a length that reaches from the middle of the lower wall panel 10a in the height direction to the middle of the upper wall panel 10 (hereinafter referred to as “upper wall panel 10b”). (See FIG. 6).
The temporary support member 3 fixes the lower half to the lower wall panel 10a so that the upper half projects upward from the upper end of the lower wall panel 10a.

  In addition, the material which comprises the temporary support member 3 is not limited to H-section steel, For example, you may use other steel materials, such as channel steel and L-section steel, and a precast concrete member. Further, the length and cross-sectional dimensions of the temporary support member 3 may be set as appropriate.

The temporary support member 3 is formed with a plurality of bolt holes. The bolts 31 are inserted into the bolt holes, and are fixed by screwing the bolts 31 to the back surface of the lower wall panel 10a. At this time, as shown in FIG. 4A, an adjustment plate 32 is interposed between the temporary support member 3 and the lower wall panel 10a, and the temporary support member 3 and the lower wall panel 10a (wall panel). 10), a gap is formed.
In the present embodiment, the adjustment plate 32 is disposed corresponding to the position of the bolt 31, but the arrangement of the adjustment plate 32 is not limited. Further, the adjustment plate 32 may be disposed as necessary and may be omitted. Further, the number of bolts 31 used for fixing the temporary support member 3 is not limited and may be determined as appropriate.

  In the present embodiment, two temporary support members 3 are fixed to the back surface of the lower wall panel 10a. The number of temporary support members 3 is not limited, and can be set as appropriate according to the shape, weight, inclination, and the like of the wall panel 10.

Moreover, in this embodiment, as shown in FIG.3 (b), the foot | leg fixed metal fitting 33 is fixed along the outer side (column 2 side) of the temporary support member 3. As shown in FIG.
The lower half portion of the foot fixing hardware 33 is fixed such that the upper half portion projects upward from the upper end of the lower wall panel 10a.

As shown in FIG. 5A, the foot fixing hardware 33 is a member made of channel steel, and is fixed to the back surface of the lower wall panel 10a so that the longitudinal direction thereof is the vertical direction.
The foot fixing hardware 33 is a member disposed between the upper portion of the lower wall panel 10a, the upper wall panel 10b, and the lower portion, and is configured to be shorter than the temporary support member 3.

  As shown to Fig.5 (a), the slit 33a for fixing to the upper wall panel 10b is formed in the upper half part of the foot fixing metal 33. As shown in FIG. The foot fixing hardware 33 fixes the lower part of the upper wall panel 10b with a bolt 31 inserted through the slit 33a. The upper wall panel 10b can be fixed by adjusting the height by the slit 33a. A long hole may be formed in the foot fixing hardware 33 instead of the slit 33a. Moreover, when it is not necessary to adjust the height of the upper wall panel 10b, a normal bolt hole may be formed.

  In addition, the material which comprises the foot | leg fixed metal fitting 33 is not limited to channel steel, For example, you may comprise with other materials, such as L-shaped steel, H-shaped steel, and flat plate steel. Further, the length dimension and the cross-sectional dimension of the foot fixing hardware 33 can be appropriately set as long as the lower end portion of the upper wall panel 10b can be fixed. Further, the foot fixing hardware 33 may be arranged as necessary and may be omitted.

  The wall panel fixing step is a step of fixing the upper wall panel 10b on the lower wall panel 10a as shown in FIG. 6 (a).

In the wall panel fixing step, the upper wall panel 10b is placed on the upper end surface of the lower wall panel 10a while being suspended by a crane or the like (not shown), and the temporary support member 3 is placed on the back surface of the upper wall panel 10b. Fix the protruding part.
The temporary support member 3 is fixed to the upper wall panel 10b through a push / pull adjustment piece 34 fixed to the upper end of the temporary support member 3, as shown in FIGS. 4 (a) and 4 (b).

The push / pull adjustment piece 34 is an L-shaped hardware in cross section, and one piece 34a is fixed to the upper end surface of the temporary support member 3, and the other piece 34b is arranged in a state along the back surface of the upper wall panel 10b. It is installed.
A slit 34c is formed in the other piece 34b of the push / pull adjustment piece 34, and an anchor bolt 35 embedded in the upper wall panel 10b can be inserted.

  Since the push / pull adjustment piece 34 allows the anchor bolt 35 to be inserted into the slit 34c, the push / pull adjustment piece 34 can cope with a change in the height of the upper wall panel 10b (anchor bolt 35). A long hole may be formed instead of the slit 34c.

  The upper wall panel 10b is disposed in a state in which the other upper wall panel 10b adjacent to the left and right faces a side end surface thereof.

  At this time, the L-shaped wall main bar 12 exposed from the notch 11 of the wall panel 10 protrudes to the column 2 side. Further, a connecting line 12a in a state straddling the left and right wall panels 10 is arranged (see FIG. 7).

  As shown in FIG. 6A and FIG. 7, the water stop plate 4 is disposed along the vertical joint 13 formed at the abutting portion between the wall panels 10 b adjacent to each other on the left and right.

The wall panel 10 of the present embodiment has a groove formed on the abutting surface with another adjacent wall panel 10, and the water stop plate 4 can be disposed in a state where the wall panels 10 are abutted with each other. A hole is formed.
In the present embodiment, a cement plate is used as the water stop plate 4, but the material constituting the water stop plate 4 is not limited, and for example, a resin plate such as a gasket or a rubber plate may be used. . Moreover, the installation method of the water stop board 4 is not limited, What is necessary is just to perform suitably. For example, the water stop plate 4 may be attached to the back surface of the wall panel 10 along the vertical joint 13 without forming the groove 41.

  The positioning step is a step of positioning the upper wall panel 10b.

  The positioning of the upper wall panel 10b is performed in a state where the upper wall panel 10b is supported by the temporary support member 3 and the shift of the foot of the upper wall panel 10b is suppressed by the foot fixing hardware 33, and the tilt angle of the upper wall panel 10b This is done by adjusting the level and alignment with the lower wall panel 10a.

The tilt angle of the upper wall panel 10 b is adjusted by adjusting the length of the gap between the upper wall panel 10 b and the temporary support member 3 using the push / pull adjustment piece 34 and the anchor bolt 35.
Since the adjustment plate 32 is interposed between the temporary support member 3 and the lower wall panel 10a, there is a gap between the upper wall panel 10b disposed on the upper end surface of the wall panel 10a and the temporary support member 3. Is formed. Therefore, when the push / pull adjustment piece 34 is fixed to the anchor bolt 35, the length of the gap is adjusted according to the number of rotations of the nut, and the front / rear position (falling angle) of the upper wall panel 10b is adjusted (FIG. 4 ( b)).

Further, as shown in FIG. 5B, the level of the upper wall panel 10b is adjusted by a height adjusting bolt 16 protruding from the end surface of the upper wall panel 10b.
That is, by rotating the height adjusting bolt 16, the length of the protrusion from the upper wall panel 10b is expanded and contracted, and the distance from the lower wall panel 10a is adjusted. As a result, the level of the upper wall panel 10b can be adjusted.

  As shown in FIGS. 6B and 8, the column extending step is a step of extending the main column 2 supporting the lower wall panel 10a upward and connecting it to the upper wall panel 10b.

  The column extension process of the present embodiment includes a bar arrangement, a formwork, a concrete placing work, and a formwork removal work.

In the bar arrangement, the main reinforcement of the column 2 (hereinafter referred to as “column main reinforcement 21”) and the hoop reinforcement 22 are arranged.
The column main reinforcement 21 is extended by connecting a reinforcing bar to the column main reinforcement 21 protruding from the upper end of the existing part of the column 2 while securing a predetermined lap joint.

  The column main bar 21 has a length that can secure a predetermined lap joint length so that the reinforcing bar can be connected when the column 2 is extended in a subsequent process (see FIG. 8). Further, when the column 2 is not extended, the column main reinforcement 21 has a lower height than the upper end surface of the column 2 so that a predetermined concrete covering can be secured from the upper end of the column 2.

  A hoop line 22 is arranged around the column main bars 21, 21,. The wall main bar 12 of the wall panel exposed from the notch 11 of the wall panel 10 is inserted between the column main bars 21.

  In the formwork, as shown in FIG. 7, along the outer periphery of the reinforcing bars (column main bars 21 and hoop bars 22) of the columns 2 so as to surround the notches 11 of the upper wall panel 10b and the spaces to be the columns 2. The mold 23 is installed. The fixing method of the formwork 23 is not limited and is performed appropriately.

In the concrete placement work, concrete is placed in the mold 23 and cured until a predetermined strength is developed in the concrete.
Thereby, since the pillar 2 is formed in a state where the wall main reinforcing bars 12 are involved, the integration of the wall panel 10 and the pillar 2 is realized.

  After the concrete is cured, when a predetermined strength is developed, the mold 23 is removed as shown in FIG.

  The wall 1 is formed into a desired shape by repeatedly performing the supporting member fixing step, the wall panel fixing step, the positioning step, and the column extending step.

As mentioned above, according to the construction method of a structure, since positioning of the upper wall panel 10b can be performed simply by utilizing the lower wall panel 10a and the temporary support member 3, it is excellent in workability.
Moreover, even if the wall 1 includes an inclined portion or a curved portion, the construction can be performed early and inexpensively.

Moreover, the construction of the pillar 2 and the joining of the pillar 2 and the wall panel 10 are performed at the same time, thereby enabling early construction.
Since the pillar 2 is formed on the back surface of the wall panel 10, the pillar 2 is not exposed on the surface of the wall 1, and a wall covered with the wall panel 10 having a certain surface quality can be formed. Therefore, it is possible to easily construct the wall 1 on which a special design of the surface can be applied.

  In addition, since the water stop plate 4 is disposed at the abutting portion of the wall panel 10, it is prevented that noro flows out from the vertical joint 13 to the surface of the wall 1 with the concrete placement of the pillar 2.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and it goes without saying that the above-described constituent elements can be appropriately changed without departing from the spirit of the present invention.

For example, in the above-described embodiment, the case where an inclined wall is constructed has been described. However, the wall does not need to be inclined and may be vertical.
Moreover, you may employ | adopt the construction method of the wall of this invention, when constructing | assembling the wall which has a curved part.

Moreover, the notch part does not necessarily need to be formed in the edge part of a wall panel.
In the above embodiment, the case where the pillar is formed on the back surface of the wall panel has been described. However, the positional relationship between the pillar and the wall panel is not limited to that of the above embodiment. You may make it contact | abut to a side surface.

  Moreover, although the said embodiment demonstrated the case where a pillar was arrange | positioned on the left and right of each wall panel, the number of the pillar with respect to a wall panel is not limited. For example, the column panels may be connected to each other without disposing the columns, and the columns are not necessarily disposed at both ends of each wall panel.

  Moreover, although this embodiment demonstrated the case where the pillar 2 was constructed | assembled by site construction, the construction (extension) method of the pillar 2 is not limited, For example, while connecting a precast member up and down, a wall panel You may build by connecting.

  Moreover, the construction method of the lowermost wall panel 10 is not limited to the above method, and can be appropriately constructed.

1 wall 10 wall panel 10a lower wall panel (lower wall panel)
10b Upper wall panel (upper wall panel)
11 Notch 12 Wall main bar (main bar)
2 pillar 2a pillar rear part (the rear part of the pillar)
2b Column front (front side of the column)
3 Temporary support member 4 Water stop plate

Claims (4)

A wall construction method in which a plurality of wall panels are arranged side by side to form a wall,
Fixing the temporary support member on the back surface of the lower wall panel so that the upper part protrudes upward from the upper end of the lower wall panel;
Installing the upper wall panel on the upper end surface of the lower wall panel, and fixing the protruding portion of the temporary support member to the back surface of the upper wall panel;
A step of positioning the upper wall panel while supporting the upper wall panel with the temporary support member;
Extending the main column supporting the lower wall panel upward and connecting to the upper wall panel;
A method for constructing a wall, comprising: A wall construction method in which a plurality of wall panels are arranged side by side to form a wall,
Building the rear part of the main pillar;
Arranging a bottom wall panel along the pillar;
Building the front part of the pillar and connecting it to the bottom wall panel;
Fixing the temporary support member on the back surface of the lowermost wall panel so that the upper part protrudes upward from the upper end of the lowermost wall panel;
Installing the upper wall panel on the upper end surface of the lowermost wall panel, and fixing the protruding portion of the temporary support member to the back surface of the upper wall panel;
A step of positioning the upper wall panel while supporting the upper wall panel with the temporary support member;
Extending the column upwards and connecting to the upper wall panel;
A method for constructing a wall, comprising: The upper wall panel is disposed in a state in which the other side wall panels adjacent to the left and right are in contact with each other.
The method for constructing a wall according to claim 1, wherein the column is connected to a back surface of a butt portion between the wall panels.   The notch part is formed in the back side of the edge part of the said wall panel, the main reinforcement of the said wall panel is exposed, and the said main reinforcement is fixed to the said pillar, It is characterized by the above-mentioned. The wall construction method described in 1.

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