JP4493462B2 - Wall structure and its construction method - Google Patents

Description

  The present invention relates to a wall surface structure that closes an opening constructed in a structural frame of a building and a construction method thereof.

In condominiums such as condominiums, the floor plan of each dwelling unit (the purchaser's exclusive part) can be changed as desired so that the purchaser of the condominium can select the layout according to his / her lifestyle There has been a strong demand from the past.
In response to this demand, in recent years, it has become common to be able to freely select from 3 to 4 types of floor plans, and there are also types that can be selected from 20 types and 30 types of floor plans.

  On the other hand, in the construction of reinforced concrete apartment buildings, the construction of buildings (columns, beams, slabs, etc.) at the same time as the construction of walls (such as inner walls and outer walls between houses) where structural strength is not important, A construction method (hereinafter referred to as a “wall-integrated construction method”) for partitioning walls and interiors in each residence is common. However, in the case of the wall-integrated construction method, if the floor plan changes, it is natural that the layout of the room changes, and the position, size, and shape of the window frame facing the outer wall must be changed accordingly.

  For this reason, in a condominium, there is a problem that if the floor plan of all purchasers is not decided, it is impossible to construct the structural frame of the building (manufacture of formwork or concrete placement), and the completion of the house is delayed. As a result, conventionally, the purchaser has had the inconvenience of having to decide the floor plan at an early stage before constructing the structural frame of the building.

  Therefore, without constructing the outer wall part where the window frame is provided integrally with the structural frame, the structural frame is first constructed using the part as an opening, and after the floor plan is determined, the opening is closed with a concrete plate or a window sash (hereinafter referred to as a construction method). (Referred to as “wall separation method”) (for example, Patent Documents 1 and 2).

FIG. 8 is a front view from the indoor side of the outer wall structure by a wall separation method using a plate made of lightweight cellular concrete (ALC: Autoclaved Light-weight Concrete) (hereinafter referred to as ALC plate). It is sectional drawing of an ALC board part.
FIG. 8 shows a structure in which a window sash and an ALC plate are attached to an opening 1 surrounded by a structure frame of a building on both sides, with columns 2 on both sides, a beam 3 on the upper side, and a slab 4 on the lower side. The window sash is usually fixed by welding and fixing the top and bottom of the outer frame of the sash to anchors provided at several places in the opening, and filling the gap with mortar.
In addition, as shown in FIG. 9, the lower part of the ALC plate forms a concrete rise from the viewpoint of waterproofing, and an L-shaped angle is laid on it and joined by an ALC fixing plate, and the upper part is above the opening. It is joined to the attached L-shaped angle with an ALC fixing plate.

  The “building method of the wall body” of Patent Document 1 aims at making it possible to easily change the wall body into various forms. As shown in FIG. 10, a plurality of types of basic wall units 51 and 53 are used. 58, and a plurality of basic wall units selected from these basic wall units are built in the opening 63 surrounded by the pillar 61 and the beam 62 and attached to the mounting members 64, 65 to be unit wall bodies. 60 is constructed.

  The “wall surface structure” of Patent Document 2 is mainly intended to be able to cope with a change in a free floor plan. As shown in FIG. 11, a “wall surface structure” is formed in a wall surface opening surrounded by opposing columns 61 and upper and lower beams 62. The wall structure 70 that is disposed and constitutes the wall surface includes a movable sash 71, a hollow panel member 72 disposed between the column 61 and the movable sash 71, and a fixed sash disposed between the movable sashes 71. 73.

Japanese Patent Laid-Open No. 5-133023, “Method for constructing a wall” JP 2000-248663 A, “Wall Structure”

As can be seen from the schematic front view of FIG. 8, in the conventional outer wall structure using an ALC plate, if the size and position of the window sash are not determined in advance, it is impossible to make a concrete rise for attaching the ALC plate. Moreover, since this concrete rise is for waterproofing, it is preferable to construct it integrally when constructing the structural frame of a building.
On the other hand, as described above, the window sash is fixed by welding and fixing the top and bottom of the outer frame of the sash to anchors provided at several places in the opening, and filling the gap with mortar. There is a step between the window sash and the presence or absence of concrete rise.
Therefore, the conventional outer wall structure using the ALC plate has a problem that even if the wall separation method is used, if the size or position of the window sash is changed due to the layout change, the change cannot be accommodated.
Further, the positional accuracy of the structural frame of the building often has an error of about several millimeters due to the displacement of the formwork or the pressure of the concrete. Therefore, conventionally, in order to make the horizontal level of the ALC plate to be built constant, mortar is applied to the upper surface of the concrete rise and the level is fixed, and then the L-shaped angle is fixed, or the ALC plate is fixed with the upper plate fixing plate. When fixing a board, it was necessary to take a horizontal level, and there was a problem that it took time and effort to adjust the level.

On the other hand, according to the means of Patent Document 1 and Patent Document 2, the shape and size of the window sash facing the outer wall is changed in accordance with the floor plan selected by the purchaser even after the building structure of the building is constructed. It becomes possible to construct, and the inconvenience to the purchaser is solved.
However, Patent Document 1 is a configuration in which runner members are provided at the upper and lower portions of an opening formed by columns, beams, walls, or slabs, and a wall member or window sash is fixed between the upper and lower runner members. As a matter of course, there is a drawback that conventional window sashes and ALC plates cannot be used as they are, and there is a problem that the cost is increased because a special component member is required.

  Further, Patent Document 2 proposes an outer wall member that can form a panel for each component member and can follow the horizontal displacement between layers at the time of an earthquake. However, the mechanism for following the interlayer displacement is complicated, and a special mechanism for that purpose is proposed. Since joint metal is required, there is a problem that the cost is high as a result.

  The present invention has been devised in view of these problems. That is, the purpose of the present invention is to construct the structural body first with the outer wall portion as an opening, and after determining the floor plan, without requiring special components or joint hardware, and without taking time to adjust the level, etc. A wall structure and its construction method that can attach outer wall mounting members such as window sashes and entrance doors to any position and block other parts with a concrete plate, and can exhibit excellent earthquake resistance. There is to do.

According to the present invention, a wall surface structure that closes an opening corresponding to an outer wall portion constructed in a structural frame of a building,
An outer wall mounting member attached to the structural housing at a desired position of the opening, a concrete plate that closes other than the mounting portion of the outer wall mounting member, and an upper portion that swingably fixes the upper and lower portions of the concrete plate to the structural housing And a lower fixing device,
The upper fixing device is a suspension device that is fixed to a structural frame whose upper end is the upper edge of the opening and suspends the upper end surface of the concrete plate so as to be swingable.
The lower fixing device is a support device that supports the lower end surface of the concrete plate so that the lower end is fixed to the structural frame at the lower edge of the opening and swingable.
The support device includes: a first support member that swingably supports one point at a lower central portion of the concrete plate; a second support member having an upper portion fixed to the first support member and a lower end fixed to the structural housing; There is provided a wall surface structure comprising a seal member that tightly seals a space between the first support member and the second support member.

According to a preferred embodiment of the present invention, the first support member includes a plate fixing plate fixed to the concrete plate so as to be swingable at one point in the center of the lower end of the concrete plate, and a part of the first support member at the lower end of the plate fixing plate. And a first L-shaped member having a horizontal portion having a certain gap from the lower end surface of the concrete plate,
The second support member comprises a second L-shaped member having a horizontal portion partially welded to the first L-shaped member and extending along the lower edge of the opening.
The seal member includes a mortar that tightly seals between the first L-shaped member and the second L-shaped member, a waterproof member that covers the outdoor surface of the mortar with water tightness, and a space between the waterproof member and the lower end surface of the concrete plate. It consists of a sealing member which seals so that attachment or detachment is possible.

Further, according to the present invention, there is provided a construction method of a wall surface structure that closes an opening corresponding to an outer wall portion constructed in a structural frame of a building,
Attaching the outer wall mounting member to the structural housing at a desired position of the opening,
Position the concrete board outside the mounting part of the outer wall mounting member,
A suspension device with the upper end fixed to the structural frame with the upper edge of the opening.
A support device whose lower end is fixed to the structural frame at the lower edge of the opening, and supports the lower end surface of the concrete plate so as to be swingable, thereby fixing the upper and lower portions of each concrete plate to the structural frame so as to be swingable. A featured construction method for a wall structure is provided.

  According to a preferred embodiment of the present invention, the support device includes a first support member that supports one point of the lower end central portion of the concrete plate so as to be swingable, and an upper portion fixed to the first support member, and the lower end is a structural housing. And a seal member that seals water tightly between the first support member and the second support member.

The first support member is a plate fixing plate fixed to the concrete plate so as to be swingable at one point at the center of the lower end of the concrete plate, and a part of the first support member is welded to the lower end of the plate fixing plate to be constant from the lower end surface of the concrete plate. A first L-shaped member having a horizontal portion with a gap of
The second support member comprises a second L-shaped member having a horizontal portion partially welded to the first L-shaped member and extending along the lower edge of the opening.
The seal member includes a mortar that tightly seals between the first L-shaped member and the second L-shaped member, a waterproof member that covers the outdoor surface of the mortar with water tightness, and a space between the waterproof member and the lower end surface of the concrete plate. It consists of a sealing member which seals so that attachment or detachment is possible.

  According to the wall structure and its construction method of the present invention, an opening corresponding to the outer wall portion is constructed in the building structure of the building, and an outer wall mounting member (window sash, entrance door, etc.) is provided at a desired position of the opening. Is attached to the structural frame and the parts other than the mounting part of the outer wall mounting member are closed with a concrete plate, so the structural frame is built first with the outer wall part as the opening, and after the floor plan is decided, the outer wall mounting members such as window sashes and entrance doors are free It can be installed at a certain position and the other parts can be closed with a concrete board.

  In addition, outer wall mounting members (window sashes, entrance doors, etc.) are attached to the structural frame in the same manner as in the past at the desired position of the opening, and the concrete plate is the same as the conventional upper fixing device and lower fixing device, that is, the plate Since it is attached with a fixing plate, an L-shaped member, and a sealing member (mortar, waterproofing member, and sealing member), it can be constructed at low cost without requiring a special component member or a joint hardware.

  Furthermore, the 1st support member and 2nd support member which comprise a support apparatus consist of a plate fixing plate, a 1st L-shaped member, and a 2nd L-shaped member, and weld a part of 2nd L-shaped member to a 1st L-shaped member. Therefore, the position (height) from the lower edge of the opening to the bottom edge of the concrete plate can be adjusted, so that the horizontal level of the ALC plate can be kept constant, such as applying mortar to the top surface of the concrete rise. Can be eliminated.

  In addition, because the upper and lower parts of the concrete plate are fixed to the structural frame by the upper and lower fixing devices so that they can swing, each concrete plate swings following the displacement with the upper and lower parts fixed. Can exhibit excellent seismic performance.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted.

FIG. 7 is a principle diagram of the locking construction method. In the rocking construction method, the upper and lower parts of the structural enclosure were displaced during an earthquake by fixing each point at the top and bottom of the rectangular ALC plate (or PC board) that is long vertically to the structural enclosure so that it can swing. Even in this case, the ALC plate swings following this, reducing the external force acting on the ALC plate and preventing the cracks and breakage.
The displacement at the time of the earthquake can be represented by the interlaminar deformation angle R of the structural frame, and R = 1/200 is the Great Kanto Earthquake or the Kobe Earthquake Grade Earthquake. Therefore, at R = 1/200, it is said that the building should not collapse even if it is damaged.

Therefore, when we reexamine the conventional construction method using the ALC plate, the conventional window sash itself can follow the allowable interlayer displacement angle 1/200, and the window sash has the same structure as before. Even so, it can be said that it can withstand the Great Kanto Earthquake and Kobe Earthquake.
Further, the ALC plate fixing means can be similarly constructed to withstand a large earthquake by utilizing the locking construction method corresponding to the interlayer displacement. The present invention is based on such novel findings.

  FIG. 1 is a front view from the room side of the outer wall of the wall structure according to the present invention, and FIG. 2 is a cross-sectional view taken along the line AA of FIG.

As shown in FIG. 1, a wall surface structure 10 of the present invention closes an opening 1 corresponding to an outer wall portion constructed in a structural frame of a building. In this example, the structural frame of the building is composed of two vertical columns 2, an upper horizontal beam 3, and a lower horizontal slab 4, and an opening 1 is formed inside thereof. The opening 1 is preferably a rectangular opening, and the lower surface of the opening (the upper surface of the slab 4) is set to a constant horizontal height.
Note that the opening 1 may have a different shape such as a trapezoid or a parallelogram depending on the design and design requirements of the building.

  The wall surface structure 10 of the present invention includes an outer wall mounting member 12, a concrete plate 14, and upper and lower fixing devices 16 and 18.

In this example, the outer wall attachment member 12 is a window sash 12a and is directly attached to the structural housing at a desired position of the opening 1. The window sash is preferably attached by fixing the upper and lower sides of the outer frame of the sash to anchors provided at several locations in the opening by welding, and filling the gap with mortar.
However, the present invention is not limited to this means, and other known means may be used as long as it has seismic performance and can be made inexpensive.

The concrete board 14 is an ALC board (lightweight cellular concrete board) in this example, but may be a PC board (precast concrete board). The shape of the concrete plate 14 is preferably rectangular, but may be partially irregular to match the irregular opening. One or a plurality of the concrete plates 14 are provided so as to close the portions other than the attachment portion of the outer wall attachment member 12. The size and shape of the concrete plate 14 may be standardized as a standard, or may be appropriately set according to the opening.
In this example, each concrete plate 14 has a rectangular shape that is long in the vertical direction, and a fixing bolt hole 14a (female screw) is provided at the center of the upper end and the center of the lower end.

  The upper and lower fixing devices 16 and 18 have a function of swinging and fixing the upper and lower portions of the concrete plate 14 to the structural frame.

As shown in FIG. 2, the upper fixing device 16 is a suspension device in which the upper end is fixed to a structural frame (the lower surface of the beam 3) with the upper edge of the opening, and the upper end surface of the concrete plate 14 is suspended in a swingable manner. .
In this example, the hanging device 16 includes an upper plate fixing plate 16a and an upper L-shaped member 16b (for example, an L-shaped angle).

  The upper plate fixing plate 16a is fixed to the concrete plate 14 so as to be swingable by a set bolt (anchor in this example) 5a at one point in the upper central portion of the concrete plate 14. The upper L-shaped member 16b is an L-shaped member (angle) having a horizontal portion that is partially welded to the upper end portion of the upper plate fixing plate 16a and has a certain gap A from the upper end surface of the concrete plate 14. The upper L-shaped member 16b is fixed to the structural frame (the lower surface of the beam 3) at the upper edge of the opening by the anchor 6a.

  The fixed gap A from the upper end surface of the concrete plate 14 to the lower surface of the horizontal portion of the upper L-shaped member 16b (in this example, to the head of the anchor 6a) is such that each concrete plate 14 is fixed at the top and bottom during an earthquake or the like. It is set so that it can swing following the displacement. This gap A is, for example, 5 to 10 mm.

  Further, the gap A is filled with a flexible member (for example, ceramic wool 7a) so as to hinder the swinging of the concrete plate 14, and further on the outer side is a structural frame (beam) on the upper edge of the opening. 3) and a back-up material 9a are attached to the sealing plate 8 (sealing) for removably sealing between the upper end surface of the concrete plate 14 and the upper surface of the concrete plate 14.

The lower fixing device 18 is a support device that is fixed to a structural housing (upper surface of the slab 4) having a lower end at the lower edge of the opening, and supports the lower end surface of the concrete plate 14 so as to be swingable.
The support device 18 includes a first support member 19, a second support member 20, and a seal member 21.
The first support member 19 includes an upper plate fixing plate 19a, which is fixed to the concrete plate 14 so as to be swingable by a set bolt (anchor in this example) 5b at one central portion of the lower end of the concrete plate 12, and an upper plate fixing plate 19a. A first L-shaped member 19b (for example, an L-shaped angle) having a horizontal portion partially welded to the lower end surface of the concrete plate 12 and having a certain gap (not shown) from the lower end surface of the concrete plate 12. One point at the center of the lower end is supported to be swingable.

  A certain gap from the lower end surface of the concrete plate 14 to the upper surface of the horizontal portion of the first L-shaped member 19b may cause each concrete plate 14 to swing following the displacement while the upper and lower portions are fixed during an earthquake or the like. Set as possible. This gap is, for example, 5 to 10 mm.

  The second support member 20 includes a second L-shaped member 20 (for example, an L-shaped angle) having a horizontal portion partially welded to the first L-shaped member 19b and extending along the lower edge of the opening (the horizontal slab 4). The second L-shaped member 20 is fixed to the structural casing (the upper surface of the horizontal slab 4) at the lower edge of the opening by the anchor 6b.

The seal member 21 includes a mortar 21a that tightly seals the space between the first L-shaped member 19b and the second L-shaped member 20, a waterproof member (waterproof layer in this example) 21b that covers the outdoor surface of the mortar, and a waterproof member 21b. And a sealing member 22 that detachably seals between the lower end surface of the concrete plate 14. The waterproof layer may cover the sealing member 22.
In this example, the mortar 21a is formed in a staircase shape having a high indoor side and a low outdoor side. Moreover, the sealing member 22 is clamped between the low part of the mortar 21a and the lower end surface of a concrete board, and the backup material 9b is attached to the inner side.
Further, the gap between the mortar 21a and the backup material 9b is filled with a flexible member (for example, ceramic wool 7b. In addition, the structure may be filled with mortar instead of the ceramic wool 7b.
With this configuration, the portion corresponding to the conventional concrete rising is replaced with the waterproof layer 21b, the sealing member 22, the backup material 9b, the ceramic wool 7b, the mortar 21a, the second L-shaped member 20, and the like. The space between the first support member 19 and the second support member 20 can be sealed watertight.

The wall structure described above is constructed as follows.
The outer wall attachment member 12 (window sash 12a) is attached to the structural frame (column 2, beam 3, slab 4) at a desired position of the opening 1. For this attachment, it is preferable that the upper and lower sides of the outer frame of the sash are fixed to anchors provided at several places in the opening by welding, and the gap is filled with mortar.
The concrete plate 14 is positioned so as to block other than the mounting portion of the outer wall mounting member, the suspension device 16 suspends the upper end surface of the concrete plate in a swingable manner, and the support device 18 swings the lower end surface of the concrete plate. Support movably. As a result, the upper and lower portions of each concrete plate are fixed to the structural frame so as to be swingable.
Further, since the support device 18 includes the first support member 19, the second support member 20, and the seal member 21, the portions corresponding to the conventional concrete rising are the waterproof layer 21 b, the sealing member 22, the backup material 9 b, ceramics It is replaced with the wool 7b, the mortar 21a, the second L-shaped member 20, and the like, and the space between the first support member 19 and the second support member 20 can be sealed watertight from the outside to the inside.

As described above, the feature of the present invention resides in that the second L-shaped member 20 that further supports the first L-shaped member 19b provided on the concrete rising, which is a conventional substructure, is provided.
And the mortar 21a is filled between the 1st L-shaped member 19b and the 2nd L-shaped member 20, and it coat | covers with the waterproof layer 21b, The same waterproof performance as the conventional concrete start-up is ensured.
In addition, since this structure does not require a concrete riser as in the conventional case, in a reinforced concrete building, an opening such as a window sash can be opened at the necessary time regardless of the building process of the frame structure such as columns, beams, and slabs. You can build a wall around the club. Of course, the mounting position of the ALC plate can also be set freely.
Furthermore, in the past, in order to make the horizontal level of the ALC plate to be built constant, mortar is applied to the upper surface of the concrete rise and the level is fixed, and then the L-shaped angle is fixed, or the ALC plate is fixed with the upper plate fixing plate. There is a problem that it is necessary to take a horizontal level when fixing the plate, and it takes time to adjust the level. However, in the structure according to the present invention, after the second L-shaped member 20 is anchored, the first L-shaped member 19b is fixed. Since only the second L-shaped member 20 is welded while taking the horizontal level, the horizontal level can be easily obtained.

  In addition, as can be seen from FIG. 2, the lower part of the ALC plate is different from conventional concrete rising, and uses L-shaped angles 19b and 20, so when constructing structural frames such as reinforced concrete columns, beams, slabs, etc. The ALC plate can be retrofitted regardless of whether or not the width and position of the window sash are changed, regardless of the construction of the structural housing.

FIG. 3 is a cross-sectional view similar to FIG. 2 showing a second embodiment of the wall surface structure of the present invention. In this figure, the mortar 21a of the sealing member 21 is substantially rectangular, and the mortar 21a 'has a plastering finish. The waterproof layer 21b is configured to cover the mortar 21a ′. Other configurations are the same as those in FIG.
Even with this configuration, the portion corresponding to the conventional concrete rising can be replaced with the plastered mortar 21b, the sealing member 22, the backup material 9b, the mortar 21a, the second L-shaped member 20, and the like. The space between the first support member 19 and the second support member 20 can be tightly closed.

  In FIG. 3, a constant gap B from the lower end surface of the concrete plate 14 to the upper surface of the horizontal portion of the first L-shaped member 19 b is set by a locking spacer 23. The locking spacer 23 is a small piece plate having a thickness corresponding to the gap B. The locking spacer 23 is sandwiched at a position directly below the set bolt 5b. The lower end of the concrete plate 14 is placed on the rocking spacer 23, and the rocking spacer 23 is prevented from swinging. It is supposed not to.

FIG. 4 is another front view from the room side of the outer wall of the wall structure according to the present invention.
In this example, the outer wall mounting member 12 is a window sash 12a and an entrance 12b. In this example, the ALC plate 14 is used to construct a wall with the first L-shaped member 19b and the second L-shaped member 20 having the structure of the present invention.
Even in such a wall shape, when there is a rise of concrete as in the conventional case, there is a question problem that cannot be accommodated if there is a change in the position of the entrance door due to a floor plan change, etc., but according to the structure of the present invention Can respond to the change.

FIG. 5 is another plan view of the outer wall of the wall structure according to the present invention. This figure has shown the arrangement | positioning state of the ALC board in case the shape of a wall is bent.
As shown in this figure, even when the wall shape is changed to an entrance / exit so as to provide a bay window counter, the change can be accommodated by providing the second L-shaped member 20 in a portion requiring a wall.

FIG. 6 is a front view of a wall structure showing an embodiment according to the present invention. A wall surface structure according to the construction method of the present invention described above was manufactured, and an earthquake resistance test was performed.
The manufactured wall surface structure is a case where the shape of the wall shown in FIG. 5 is bent. Eight ALC plates are arranged as shown in FIG. 5, and a window sash is provided in a part thereof. As the cross-sectional structure of the ALC plate portion, the one shown in FIG. 3 was used.
In the seismic test, the upper member corresponding to the upper beam was connected to a pressure jack, and was shaken horizontally by the pressure jack. The horizontal excitation force increased the interlayer deformation angle from R = 1/800 to 1/100, and measured the displacement and cracks of each part.
As a result, the wall structure according to the present invention has been damaged to the extent that it can be repaired even at the end of the excitation with an interlayer deformation angle of 1/100, and can withstand the Great Kanto Earthquake and Kobe Earthquake-class earthquakes. Performance was confirmed.

  In addition, this invention is not limited to embodiment mentioned above, Of course, it can change variously, unless it deviates from the summary of this invention.

It is a front view from the room inner side of the outer wall of the wall surface structure by this invention. It is a cross-sectional view in the AA line of FIG. It is a cross-sectional view similar to FIG. 2 which shows 2nd Embodiment of the wall surface structure of this invention. It is another front view from the room inner side of the outer wall of the wall surface structure by this invention. It is another top view of the outer wall of the wall surface structure by this invention. It is a wall surface structure front view which shows the Example by this invention. It is a principle diagram of a rocking construction method. It is a front view from the indoor side of the outer wall structure by the conventional wall separation construction method. It is sectional drawing of the ALC board part of FIG. FIG. 6 is a structural diagram of “Method for constructing wall” in Patent Document 1. 6 is a structural diagram of a “wall surface structure” of Patent Document 2. FIG.

Explanation of symbols

1 opening, 2 columns, 3 beams, 4 slabs,
5a, 5b set bolt (anchor), 6a, 6b anchor,
7a, 7b ceramic wool, 8 sealing members,
9a, 9b backup material,
10 wall structure,
12 outer wall mounting member, 12a window sash,
14 Concrete board (ALC board, PC board), 14a Bolt hole,
16 Upper fixing device,
16a Upper plate fixing plate, 16b Upper L-shaped member (L-shaped angle),
18 Lower fixing device, 19 1st support member,
19a Upper plate fixing plate, 19b 1st L-shaped member (L-shaped angle),
20 second support member (second L-shaped member, L-shaped angle),
21 sealing member, 21a mortar, 21b waterproof member (waterproof layer),
22 sealing member, 23 locking spacer

Claims (5)

A wall structure that closes an opening corresponding to an outer wall portion constructed in a structural frame of a building,
An outer wall mounting member attached to the structural housing at a desired position of the opening, a concrete plate that closes other than the mounting portion of the outer wall mounting member, and an upper portion that swingably fixes the upper and lower portions of the concrete plate to the structural housing And a lower fixing device,
The upper fixing device is a suspension device that is fixed to a structural frame whose upper end is the upper edge of the opening and suspends the upper end surface of the concrete plate so as to be swingable.
The lower fixing device is a support device that supports the lower end surface of the concrete plate so that the lower end is fixed to the structural frame at the lower edge of the opening and swingable.
The support device includes: a first support member that swingably supports one point at a lower central portion of the concrete plate; a second support member having an upper portion fixed to the first support member and a lower end fixed to the structural housing; A wall surface structure comprising: a seal member that tightly seals a space between the first support member and the second support member. The first support member is a plate fixing plate fixed to the concrete plate so as to be swingable at one point at the center of the lower end of the concrete plate, and a part of the first support member is welded to the lower end of the plate fixing plate to be constant from the lower end surface of the concrete plate. A first L-shaped member having a horizontal portion with a gap of
The second support member comprises a second L-shaped member having a horizontal portion partially welded to the first L-shaped member and extending along the lower edge of the opening.
The seal member includes a mortar that tightly seals between the first L-shaped member and the second L-shaped member, a waterproof member that covers the outdoor surface of the mortar in a watertight manner, and a space between the waterproof member and the lower end surface of the concrete plate. The wall structure according to claim 1, comprising a sealing member for detachably sealing. A method for constructing a wall structure that closes an opening corresponding to an outer wall constructed in a structural frame of a building,
Attaching the outer wall mounting member to the structural housing at a desired position of the opening,
Position the concrete board outside the mounting part of the outer wall mounting member,
A suspension device with the upper end fixed to the structural frame with the upper edge of the opening.
A support device whose lower end is fixed to the structural frame at the lower edge of the opening, and supports the lower end surface of the concrete plate so as to be swingable, thereby fixing the upper and lower portions of each concrete plate to the structural frame so as to be swingable. A method for constructing a wall surface structure.   The support device includes a first support member that swingably supports a point at a central portion of the lower end of the concrete plate, a second support member having an upper portion fixed to the first support member and a lower end fixed to the structural frame, The method for constructing a wall structure according to claim 3, comprising a seal member that tightly seals a space between the first support member and the second support member. The first support member is a plate fixing plate fixed to the concrete plate so as to be swingable at one point at the center of the lower end of the concrete plate, and a part of the first support member is welded to the lower end of the plate fixing plate to be constant from the lower end surface of the concrete plate. A first L-shaped member having a horizontal portion with a gap of
The second support member comprises a second L-shaped member having a horizontal portion partially welded to the first L-shaped member and extending along the lower edge of the opening.
The seal member includes a mortar that tightly seals between the first L-shaped member and the second L-shaped member, a waterproof member that covers the outdoor surface of the mortar with water tightness, and a space between the waterproof member and the lower end surface of the concrete plate. The method for constructing a wall surface structure according to claim 4, comprising a sealing member that seals in a detachable manner.

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