JP3973750B2 - Wall structure and wall construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a wall structure and a wall construction method, and more particularly, to ensure a building interior board material adhered to a panel surface against the behavior or relative displacement of a wall structure panel of a vibration isolation method. In particular, the present invention relates to a wall structure and a wall construction method that can prevent damage to or loss of a building interior board material that may occur during an earthquake or the like.
[0002]
[Prior art]
As an external wall structure or internal partition wall structure of a building, a dry panel construction method for fixing a panel type wall body such as an ALC panel or a PC concrete panel to a main structure body or a building frame of a building is widely used. According to this type of dry panel construction method, the ALC panel or PC concrete panel that constitutes the outer wall or inner partition wall is made of steel brackets or fastening to the main structural part of the building such as columns, beams or floor slabs. It is locked via locking means such as bolts.
As a lesson learned from recent major earthquakes in Japan, research and development on the application of vibration isolation or damping structures to the main structures of buildings has attracted further attention from building engineers. In particular, research and development of parts of a building that appropriately disperse or absorb seismic force due to dynamic displacement of building components in response to seismic force or vibration force acting on the building, such as during earthquakes In order to prevent or prevent damages, collapses, collapses, and the like of building structural members, there is a tendency to give more importance. For example, as a construction method for an ALC structure building wall body, a so-called slide construction method in which an ALC panel is mounted on an outer wall surface or the like so as to be horizontally displaceable in the in-plane direction, or the lower end of the ALC panel with respect to a building frame or structural axis Various construction methods, such as the so-called dry rocking construction method, which supports the displacement or behavior of the ALC panel in the in-plane direction during earthquakes, etc., are supported by the building walls. Is being put into practical use as a vibration isolation construction method.
[0003]
[Problems to be solved by the invention]
This type of vibration isolation method absorbs or dampens the seismic force by the displacement or behavior of the dry construction panel (for example, ALC panel, PC concrete panel, curtain wall, etc.) in response to seismic force or excitation force. While it is extremely advantageous in preventing body damage, collapse, or collapse, etc., it is a partial displacement of the interior base material or interior finish material fixed to the interior side of the panel as a result of the relative displacement between the panel members. Or damage etc. are highly likely to occur. Therefore, in this type of vibration isolation construction method, for example, there is a concern that a situation such as splitting or dropping off of a building interior hood material such as a gypsum board or a calcium silicate board attached to the indoor side surface of the dry construction method panel may occur.
Here, as an interior finishing method for this type of building wall, for example, a so-called GL method or a straight tension method in which a gypsum board is stuck to the indoor side surface of a dry method panel via a mastic or lump gypsum adhesive. A wooden frame such as a wooden frame is assembled to the interior side of the dry construction panel, and the wooden base construction method is used to fix the building interior board material to the wooden frame. Furthermore, a relatively thin steel foundation frame is attached to the dry construction panel. Various construction methods such as a so-called NU construction method are known in which a building interior board material is attached to the frame. In the NU method, a narrow ceiling and floor runner are disposed adjacent to the side surface of the panel room, and a horizontal linear intermediate support member or NU adjuster is fixed to the side surface of the panel room with a predetermined interval. At the same time, the thin vertical stud is locked to the upper and lower runners and the intermediate support member. The building interior board material is fixed to a foundation framework consisting of runners and studs.
[0004]
However, in accordance with each of the above construction methods, the interior interior board material is stuck to the dry construction panel of the dry rocking (DRY ROCKING) construction method, which has been attracting attention in recent years, and the performance of JIS A1414 (components for construction materials (panels) and their structural parts) When the performance test specified in (Test method) was carried out, the test result of such performance test was early in the stage where the horizontal displacement angle was relatively small with respect to the gypsum board stuck to the panel surface by the GL method or the straight extension method. In this way, a related engineer is made aware of the phenomenon that can be damaged or dropped.
However, the interior construction of gypsum board by the GL method or the straight extension method not only has various advantages such as omission of the foundation frame, securing a heat insulating air layer, high construction efficiency, and reduction of man-hours. This is an extremely advantageous method for shortening the construction period, and has an economical and constructional superiority that is hardly followed by the wooden foundation method or the steel foundation method.
Thus, the GL construction method or the straight extension construction method can be applied as desired to the above-mentioned vibration isolation construction method, in particular, the dry construction construction panel of the dry rocking construction method, and the building interior board that can be generated by the interlayer displacement of the building at the time of earthquake There is a demand for the development of a wall structure and a wall construction method that can prevent damage or dropout of materials.
[0005]
The present invention has been made in view of such circumstances, and an object of the present invention is to apply a bonding method such as a GL method or an upright method to a wall structure panel of a vibration isolation method as desired. Another object of the present invention is to provide a wall structure and a wall construction method capable of preventing damage to or loss of a building interior board material that may occur due to interlayer displacement of a building during an earthquake.
[0006]
[Means and Actions for Solving the Problems]
In order to achieve this object, the present invention provides a wall construction panel of a dry construction method supported by a building structure by a vibration isolation construction method, and a building interior that is attached to the wall construction panel by an adhesive or an adhesive. In the wall structure with board material,
The interior board material is a gypsum board having substantially the same width as the wall constituting panel,
The vertical joint formed between adjacent wall body constituting panels and the vertical joint formed between adjacent gypsum boards are aligned , and a sealing material is provided on the gypsum board joint. The wall structure is characterized in that stress transmission between the gypsum boards on the adjacent wall body constituting panels is substantially isolated by the joint.
[0007]
The present invention further provides a wall construction method for supporting a wall construction panel of a dry construction method on a building structure by a vibration isolation construction method, and sticking a building interior board material to the wall construction panel with an adhesive or an adhesive.
The interior board material is composed of a gypsum board having substantially the same width as the wall constituting panel, and the vertical joints between the gypsum boards are arranged at positions aligned with the vertical joints between the wall constituting panels,
The adhesive is applied to the wall structure panel in a dango shape or a comb shape, and the gypsum board is pressed against the adhesive layer of the adhesive, and the wall structure is rolled while the adhesive layer is rolled. Stuck to the panel,
There is provided a wall construction method characterized in that adjacent gypsum boards are separated from each other by vertical joints, and the gypsum board is displaced or behaved following the displacement or behavior of the wall constituting panel.
[0008]
According to the above configuration of the present invention, the wall structure panel and the gypsum board on the wall structure panel are in-plane with respect to an excitation force or a short-term load acting on the wall body due to an interlayer displacement or the like during an earthquake. Behaves or displaces integrally in the direction. Each gypsum board on the adjacent wall component panel is substantially isolated from stress transmission at the vertical joint or the vertical joint, so the relative behavior or displacement between the wall component panels is the joint of the gypsum board . The stress transmission function between the gypsum boards is absorbed substantially by the stress insulation function and the deformability of the gypsum boards . Therefore, the gypsum board is prevented from being damaged, broken or dropped off due to the relative displacement of the wall constituting panel.
[0009]
From another point of view, the present invention provides an outer wall of a building having a wall structure having the above structure or an indoor partition wall of a building.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
According to a preferred embodiment of the present invention , an ALC panel, a PC concrete panel, or a PC or steel curtain wall is employed as the wall body constituting panel. Preferably, the wall body constituting panel is supported by the main structure of the building so as to be rotatable or swingable by a dry rocking construction method.
[0011]
Moreover, as the adhesive or adhesive, gypsum adhesive, rubber adhesive, silicone resin adhesive, acrylic resin adhesive, urethane resin adhesive, epoxy resin adhesive, polysulfide resin adhesive, A vinyl acetate resin adhesive or the like can be preferably used. More preferably, a mastic-like dry-curing type adhesive or adhesive that is mainly applied to the adhesion site with a spatula is employed. According to a preferred embodiment of the present invention, a water-mixed gypsum adhesive that is widely used as a GL bond is used. Such a gypsum-based adhesive is applied to the panel surface in a dango shape or comb-like shape with a spatula or the like, and is scattered on the panel surface, or a relatively thick lump or strip that extends to the panel surface with an interval between them. The adhesive layer is formed on the panel surface. The interior board material is pressed against the adhesive layer, rolls the adhesive mass or the adhesive strip, and is stably fixed to the panel surface by the adhesive action of the adhesive layer.
[0012]
As the sealing material, various architectural sealing materials mainly composed of components such as acrylic resin, silicon or polysulfide can be used. Preferably, an acrylic resin sealing material is used as the joint filler . If desired , the finish board material may be further glued onto the gypsum board . The finish board material is made of gypsum with a locking agent such as a resin adhesive and / or screws so as to form an arbitrary joint form by, for example, joint sealing method, see-through method, or butt-on method. It is stretched on the board . The vertical joint of the finishing board material is arranged to coincide with the vertical joint of the gypsum board . In some construction forms, the finishing board material is a decorative board that has been previously finished with a decorative finish.
[0013]
【Example】
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a partial longitudinal sectional view of a building showing a wall structure to which a wall construction method according to an embodiment of the present invention can be applied, and FIG. 2 schematically shows the behavior of an ALC panel during an earthquake. It is a schematic front view of a wall. 1 and 2, the wall structure constitutes the outer wall of the building.
A beam (large beam) 4 constituting the main structural part of the building extends along the outer wall W. The ALC panels 1 and 2 constituting the outer wall W are supported by the beam 4 via the support fitting assembly 5. The ALC panel 1 on the upper floor and the ALC panel 2 on the lower floor are connected via a horizontal joint 3. A backup material for exterior sealing work is inserted into the horizontal joint 3, and the exterior sealing material 30 is filled into the horizontal joint 3.
[0014]
The support bracket assembly 5 is embedded in an L-shaped steel member 51 welded to the upper surface of the flange of the beam 4, an L-shaped steel member 52 fixed to the L-shaped steel member 51, an odd-shaped bracket 53 generally called an Inazuma bracket, and an ALC panel. And a locking bolt 54 inserted. The L-shaped steel material 52 includes a horizontal leg portion 55 extending into the horizontal joint 3 of the outer wall W and a vertical flange portion 58 connected perpendicularly to the base end edge (indoor side edge) of the horizontal leg portion 55. The flange portion 58 is welded to the L-shaped steel material 51.
[0015]
The vertical flange portion 58 of the L-shaped steel material 52 is divided into right and left, and forms a square opening 60 in the central region. A vertical steel strip 56 connected to the ALC panel 2 on the lower floor extends into the square opening 60 and is movably held in the square opening 60. The lower end portion of the belt plate 56 is fixed to the ALC panel 2 by a locking bolt 59.
[0016]
The horizontal leg portion 55 is inserted between the ALC panels 1 and 2 on the upper floor and the lower floor. The lower surface of the ALC panel 1 on the upper floor is supported by the horizontal legs 55, and the own weight of the ALC panel 1 transmits stress to the beam 4 via the L-type steel material 52 and the L-type steel material 51. The upper part of the odd-shaped metal fitting 53 is fixed to the back surface (inside side surface) of the lower end of the ALC panel 1 by fastening the locking bolt 54. The lower part of the odd-shaped metal part 53 is separated from the ALC panel 1 and defines a lower surface opening groove 57 into which the upper edge part of the vertical flange part 56 and the vertical upright part of the L-shaped steel material 51 can be inserted. The odd-shaped fitting 53 constitutes the rotation center axis 6 of the ALC panel 1 that supports the ALC panel 1 so as to be swingable in the in-plane direction.
[0017]
The upper floor slab 7 is supported on the upper surface of the flange of the beam 4 through the channel type spacer 70. A mortar 73 is filled in the gap between the floor slab 7 and the ALC panel 1. The upper floor slab 7 constitutes an integral floor structure formed by placing a wet structure material such as concrete on a deck plate or keystone plate, and a floor foundation material 71 such as a floor foundation mortar or a self-leveling material is provided. The floor finishing material 72 of the upper floor room Ra is stuck or laid on the upper surface of the floor base material 71. The ceiling suspension bolt 76 hangs down from the lower surface of the floor slab 7, and the ceiling base material 75 on the lower floor is locked to the lower end portion of the suspension bolt 76. The ceiling finishing material 77 of the lower floor room Rb is fixed to the ceiling base material 75.
[0018]
The gypsum board 10 for building interior construction is stuck to the indoor side walls of the rooms Ra and Rb. The underlay gypsum board 10 is bonded to the back surfaces (inside surfaces of the interior) of the ALC panels 1 and 2 with a water-mixed gypsum adhesive (GL bond). In this example, the gypsum-based adhesive is applied to the back surfaces of the ALC panels 1 and 2 in a so-called dango shape or a lump shape, and the adhesive lump 12 is formed on the back surfaces of the ALC panels 1 and 2. Adjacent adhesive masses 12 are aligned and arranged at an interval of about 150 to 300 mm vertically and horizontally. The gypsum board 10 is pressed against the indoor side surfaces of the ALC panels 1 and 2 that have completed the application process of the adhesive lump 12. The gypsum board 10 is stably fixed at a position spaced apart from the back surfaces of the ALC panels 1 and 2 while rolling the adhesive lump 12, and an air layer corresponding to the thickness of the adhesive lump 12. Is formed between the ALC panels 1 and 2 and the gypsum board 10. A desired interior finish such as a cloth pasting finish or a paint finish is applied to the interior side surface of the gypsum board 10 to complete the interior side wall surface. If desired, after fixing the gypsum board 10 to the back surfaces of the ALC panels 1 and 2, the gypsum board is attached to the interior side surface of the gypsum board 10 with a locking tool such as a screw and / or an adhesive, A desired interior finish such as a cloth pasting finish or a paint finish is applied to the interior side surface of the gypsum board.
[0019]
The behavior of the outer wall structure configured in this way during an earthquake is illustrated in FIG. When a horizontal excitation force F such as seismic force acts in the plane of the outer wall W, the ALC panel 1 constituting the outer wall W moves in the in-plane direction around the rotation center axis 6 as shown by a broken line in FIG. Swing. Due to the swinging of the ALC panel 1, the horizontal excitation force F is absorbed mainly by the in-plane transition of the outer wall W, and the remaining short-term stress portions are beams 4 and columns (not shown) that support the outer wall W. Transmits stress to the main structure. Therefore, when an excessive deformation of the building occurs during an earthquake, the ALC panel 1 rotates or swings around the rotation center axis 6 and flexibly follows the dynamic behavior of the building. By applying such a vibration isolation method, the possibility of damage, collapse or collapse of the ALC panel 1 constituting the outer wall W is greatly reduced.
The gypsum board 10 of the present embodiment has a width dimension corresponding to the width dimension of the ALC panel 1 and smoothly corresponds to the vertical joint 8 of the ALC panel 1 so as to smoothly follow the behavior of the ALC panel 1. A joint 9 is provided.
[0020]
3 is a schematic indoor side elevational view of the outer wall W showing the allocation and arrangement of the gypsum board 10, and FIG. 4 is an enlarged cross-sectional view of the outer wall W and the gypsum board 10 around vertical joints.
As shown in FIG. 3, the width dimension of the gypsum board 10 substantially matches the width dimension D of the ALC panel 1, and the vertical joint 9 of the gypsum board 10 matches the vertical joint 8 of the ALC panel 1. Here, as defined in JIS A 5416 (Lightweight Aerated Concrete Panel (ALC Panel)), the ALC panel 1 generally has a width dimension of 600 mm or 606 mm. Board products generally have a width dimension of 900 mm to 910 mm. However, in this embodiment, the width dimension of the gypsum board 10 is cut into a dimension substantially the same as that of the ALC panel 1, that is, a width dimension of 600 mm or 606 mm, or formed into such a width dimension. The board 10 is arranged and positioned to be perfectly aligned with the ALC panel 1 in elevation. When the upper plaster board is further adhered to the plaster board 10, the upper plaster board has the same width as the plaster board 10, and the joint of the upper plaster board is the vertical joint 9 of the plaster board 10. Positioned to match.
If desired, the two gypsum boards 10 may be arranged vertically and the joints 15 of the upper and lower gypsum boards 10 may be smoothly interconnected by putty processing or V-cut / putty processing.
[0021]
As a result, the vertical joint 9 having a predetermined width formed between the adjacent gypsum boards 10 coincides with the vertical joint 8 formed between the adjacent ALC panels 1, and a common joint center line C (see FIG. A vertical joint 8 and a vertical joint 9 centering on 4) are formed on the outer wall W at a predetermined interval (600 to 606 mm) in the wall length direction. A backup material and sealing material 80 is filled into the vertical joint 8, and a backup material and sealing material 90 is filled into the vertical joint 9.
Thus, the gypsum board 10 stuck to any ALC panel 1a (FIG. 4) is structurally isolated from other ALC panels 1b by vertical joints 8 and vertical joints 9, and the behavior or displacement of the ALC panel 1b is It does not substantially act on the gypsum board 10 on the ALC panel 1a. Accordingly, when the relative displacement between the adjacent ALC panels 1 is caused by displacement or deformation of the main structural part during an earthquake or the like, or an excitation force or a short-term external force, the gypsum board 10 is a panel of joints 8 and 9. Due to the division function, the board division function and the deformability of the joint itself, the behavior or relative displacement of the ALC panel 1 to which the gypsum board 10 is bonded is smoothly and reliably followed or relatively displaced. The gypsum board 10 is prevented from being damaged, damaged or dropped off due to relative displacement or relative movement between the boards 10. Further, when the ALC panel 1 is relatively largely displaced due to excessive excitation force or external force, the sealing material 80 of the vertical joint 3 is broken before the gypsum board 10 is broken, and the connection of the gypsum board 10 is released. In addition, damage, breakage or dropout of the gypsum board 10 can be avoided in advance.
[0022]
FIG. 5 is a cross-sectional view of the outer wall W and the gypsum board 10 around the vertical joint according to a modification of the above embodiment.
In the wall structure shown in FIG. 5, the gypsum board 10 is composed of a gypsum board with a tapered edge or a gypsum board with a bevel edge having a tapered side edge, and the joints of the adjacent gypsum board 10 are joints such as putty and joint tape. A smooth finish is achieved by the treatment material 45, and thus a continuous large wall surface is formed on the indoor side. Such a wall surface is subjected to a finishing process such as cross bonding or painting. The seam portion 9 formed by the seam processing large wall method is disposed at a position corresponding to the vertical joint 8 of the ALC panel 1. When the ALC panel 1 is relatively displaced by an excitation force such as seismic force or a short-term external force, cracks, splits or breaks are induced in the seam treatment material 45, and damage or breakage of the gypsum board 10 main body is prevented. It should be noted that the damaged seam treatment material 45 can be restored relatively easily by repair work such as putty and painting.
[0023]
The structure of the ALC panel 1 can be similarly applied to the ALC panel 2 on the lower floor. Moreover, in the said Example, as arrangement | positioning or arrangement | positioning of the adhesive material lump 12 inserted between the gypsum board 10 and the ALC panel 1, arrangement | positioning of the suitable adhesive lump or adhesive material band according to a construction site or a construction purpose Arbitrary arrangements can be adopted. For example, FIG. 6 is a back view of the ALC panel 1 exemplifying the arrangement and arrangement of a representative adhesive mass 12. The adhesive lump 12 shown in FIG. 6 (A) is applied in a dango shape on the back surface (inside side surface) of the ALC panel 1, and the adhesive lump 12 shown in FIG. Or it is applied in a comb shape.
[0024]
The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various changes or modifications can be made within the scope of the present invention described in the claims. Needless to say, such modifications or variations are also included in the scope of the present invention.
For example, the outer wall of the above embodiment is configured by an ALC panel, but the outer wall W may be formed by a PC concrete panel or a curtain wall.
In addition, the configuration of the present invention can be suitably applied not only to the outer wall, but can also be suitably applied to the inner wall of the dry construction panel or the indoor partition wall.
Further, in the above embodiment, a gypsum board having a width dimension substantially the same as the width dimension of the ALC panel is used, but a gypsum board having a width dimension smaller than the width dimension of the ALC panel is bonded to the ALC panel surface. May be. However, even in such a case, the vertical joints of the gypsum board are disposed at least at the portions corresponding to the vertical joints of the ALC panel.
[0025]
【The invention's effect】
As described above, according to the above-described configuration of the present invention, the GL method or the straight extension method or the like can be applied to the wall structure panel of the vibration isolation method as desired, and the building structure at the time of the earthquake can be applied. It is possible to provide a wall structure and a wall construction method that can prevent damage or dropout of building interior board material that may occur due to interlayer displacement or the like.
[Brief description of the drawings]
FIG. 1 is a partial longitudinal sectional view of a building showing a wall structure to which a wall construction method according to an embodiment of the present invention can be applied.
FIG. 2 is a schematic front view of a wall body schematically showing the behavior of an ALC panel during an earthquake.
FIG. 3 is a schematic indoor side elevational view of the outer wall showing the allocation and arrangement of the gypsum board shown in FIG. 1;
4 is a cross-sectional view of the outer wall and gypsum board shown in FIG. 1 around a vertical joint. FIG.
FIG. 5 is a cross-sectional view of the outer wall and gypsum board around the vertical joint according to a modification of the embodiment shown in FIGS. 1 to 4;
FIG. 6 is a back view of an ALC panel illustrating the arrangement and arrangement of adhesive masses.
[Explanation of symbols]
1, 2 ALC panel 3 Horizontal joint 4 Beam 5 Support metal fitting assembly 6 Rotation center axis 7 Upper floor slab 8 Vertical joint 9 Vertical joint 10 Gypsum board 12 Adhesive lump 80, 90 Sealing material

Claims (5)

In a wall structure comprising a wall structure panel of a dry construction method supported on a building structure by a vibration isolation method, and a building interior board material stuck to the wall structure panel by an adhesive or an adhesive,
The interior board material is a gypsum board having substantially the same width as the wall constituting panel,
And vertical joints formed between the wall bodies configuration panel adjacent to, together with allowed to align the vertical joints formed between the plaster board and adjacent, the sealing material joints of the plasterboard The wall structure is characterized in that stress transmission between the gypsum boards on the adjacent wall body constituting panels is substantially isolated by the joint.   An outer wall of a building having the wall structure according to claim 1.   An indoor partition wall of a building having the wall structure according to claim 1. In the wall construction method of supporting the wall structure panel of the dry construction method on the building structure by the vibration isolation method, and sticking the building interior board material to the wall structure panel with an adhesive or an adhesive,
The interior board material is composed of a gypsum board having substantially the same width as the wall constituting panel, and the vertical joints between the gypsum boards are arranged at positions aligned with the vertical joints between the wall constituting panels,
The adhesive is applied in a dango shape or a comb shape on the wall structure panel, and the gypsum board is pressed against the adhesive layer of the adhesive, and the wall structure is rolled while the adhesive layer is rolled. Stuck to the panel,
A wall construction method characterized in that adjacent gypsum boards are separated from each other by vertical joints, and the gypsum board is displaced or behaved following the displacement or behavior of the wall constituting panel.   5. The wall body constituting panel is locked to the building structure by a dry rocking construction method in which the wall body constituting panel is rotatably or swingably supported on the building structure of the building. The wall construction method described.

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