JPS6342061B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to unit panels made of asbestos-cement extruded boards, etc., among external wall panels constituting the external walls of building structures, particularly medium- and high-rise buildings. This invention relates to an exterior wall construction method for assembling large panels and fixing the large panels to a building structure.

<Conventional technology> In order to erect precast boards, ALC boards (cellular concrete boards), asbestos cement molded boards, etc. on a structure framework as external wall boards, the unit panels are usually lifted one by one and aligned along the framework. It is attached using a presser clamp, etc.

<Problems to be Solved by the Invention> However, when constructing the outer wall surface of a building structure using unit panels in this way, the unit panels cover a relatively wide area in the horizontal and vertical directions of the steel framework. Multiple pieces must be installed. Therefore, the construction to ensure the flatness of the outer surfaces of adjacent unit panels and the construction of watertight joints between each panel are both extremely complicated and require craftsmanship, reducing on-site construction efficiency. This is a major factor.

<Means for Solving the Problems> In order to solve the above-mentioned conventional problems, the present invention provides an exterior wall construction method that is easy to perform on-site construction work and has excellent maintainability.

In other words, a plurality of vertically long rectangular unit panels are arranged horizontally and arranged one above the other as an upper panel group and a lower panel group to accommodate the required height of the building between each floor, and the upper panel an intermediate joint between the lower edge of the group and the upper edge of the lower panel group;
A middle crosspiece is provided to join and fix the upper panel group and the lower panel group, and the entire periphery is surrounded by shaped steel, and the shaped steel on both side edges of the panel is assembled into an integrated large panel with dead weight brackets. Then, after installing a predetermined number of large panel self-weight supporting metal fittings at the positions where they will be joined to panel supporting metal fittings with loose holes set in advance in the structure, they are temporarily fastened, and the upper and lower positions of these large panels are adjusted. Afterwards, the dead weight supporting metal fittings are fixed to the steel frames of the upper and lower structures, and then a rain cover structure consisting of a drain groove, a drain plate, and a water catcher is formed at the joint joint between these large panels. This structure is characterized in that each large panel is made to correspond to the interlayer displacement of the structure through loose holes provided in a large panel support fitting positioned on the frame.

<Function> In the exterior wall construction method of the present invention, first, a plurality of unit panels are arranged in parallel in the horizontal direction, and then arranged vertically as an upper panel group and a lower panel group to correspond to the height of the required dimension to be built between each floor. Deploy. Therefore, it becomes possible to adjust the height of the large panel itself, and it becomes possible to easily adapt to the height position between floors. In addition, a middle crosspiece is arranged at the intermediate joint between the upper panel group and the lower panel group, and the entire periphery is surrounded by shaped steel, resulting in a large panel with high rigidity. Moreover, when fixing these large panels to the steel framework,
Loose holes are provided in the supporting metal fittings, making it possible not only to adjust the position but also to follow displacement between layers of the structure.Furthermore, each panel is highly watertight with drain grooves, drain plates, and water receivers. Since it forms a rain cover structure, it is extremely suitable as an exterior wall.

<Example> Next, the outer wall construction method of the present invention will be explained in detail based on the drawings.

FIG. 1 is a front view of a large panel 1 according to the present invention. The large panel A is made by arranging a plurality of vertically long rectangular unit panels 1, 1, . . . each having a hollow portion 2 (see FIG. 2) formed by extruding asbestos cement or the like using an extrusion molding machine.

In this embodiment, a case will be described in which six unit panels 1, 1, . . . are arranged as shown in the figure. That is, on the left and right side edge surfaces of each unit panel 1, 1..., there are joint joints 3, which are made up of recesses and protrusions that fit into each other.
4 is provided, and the concave portion and the convex portion are formed by fitting each other. The large panel A is fixed to the upper and lower end edges and the left and right side edges thereof over the entire length, that is, over the entire periphery, by a shaped steel 5, and the plurality of unit panels 1,
1... is integrated. As shown in FIG. 1, the steel molds 5 on both sides of the large panel A in the vertical direction have a pair of upper and lower weight bearing support fittings 6, 6' at predetermined positions (positions corresponding to the panel support fittings of the structure described later). )
It is fixed by means such as welding. The large panel A with the above configuration is intended to form the outer wall of the structure.
Corresponding dimensions and allocations are made between each layer. Therefore, each unit panel 1, 1, . . . that constitutes the large panel A must also comply with this condition. However, the unit panels 1 are manufactured to a certain specified length due to handling regulations such as transportation and technical problems in molding, and it is difficult to match them to all required construction dimensions. Therefore, as shown in FIG. 1, an upper panel group U and a lower panel group D are arranged one above the other, and an intermediate joint Y is formed between the lower edge of the upper panel group U and the upper edge of the lower panel group D. . At this intermediate joint Y, as shown in FIG. 2, the spout steel 27 is joined and fixed by a middle crosspiece 5' which is attached to each unit panel 1 by a panel attachment fitting 30.

On the other hand, as shown in FIG. 5, near the upper and lower ends of the large panel A, panel mounting brackets 17 made of channel-shaped steel, which is an example of the steel molding 5, are fixed with bolts 20 along the width direction of the panel. ing. Therefore, the shaped steel 5 fixed to the left and right side edges integrally connects the upper panel group U and the lower panel group D. Furthermore, the panel mounting fittings 17 are capable of integrally connecting the unit panels 1, 1, . . . composing the upper and lower panel groups in the left-right direction.

In the intermediate joint Y, 25 is a drainage groove provided at the center of the upper end surface of each unit panel 1 and along the width direction of the unit panel 1 (direction perpendicular to the paper surface of FIG. 2), and 26 is a panel It is a bracket. The panel receiving fitting 26 is welded and fixed to the mouth-shaped steel 27, and is in contact with the lower edge surface of the upper unit panel 1 via a draining plate 29, which will be described later. On the other hand, the mouth-shaped steel 27 is held by a round-shaped panel mounting bracket 30 and fixed to the upper and lower edges of each unit panel 1 via mounting bolts 28 to form a middle crosspiece 5'. As shown in FIG. 2, the drain plate 29 is interposed between the panel holder 26 and the lower end surface of each unit panel 1.
The water receiving piece 29a is formed into a substantially square shape on the side by the water receiving piece 29a and the water guiding piece 29b.
b is arranged above the drainage groove 25 and the hollow part 2.

Also in this intermediate joint Y, the water cutting groove 25
The drain plate 29 forms a highly watertight rain cover structure. That is, even if rainwater enters from the outer surface of the large panel A, it normally flows into the drain groove 25 and flows down from the hollow part 2 to the lower edge of the panel. Furthermore, a draining plate 29 is interposed therein, so that the water does not enter the inside of the building and is discharged from the lower edge of the unit panel located at the lowest end through the hollow part 2.

Construction of the large panel A assembled as described above onto the frame of a building structure will be explained. For example, a lifting hole 7 (see Fig. 5) is provided in the shaped steel 5 provided on the left and right edges in the vertical direction of the large panel A, a rope or the like is hung through this hole, and the steel frame of the structure is lifted by a crane or the like. Build up to the location. Generally, when installing exterior wall boards on a building structure,
This requires positional adjustment at the installation site of the steel framework, and in the present invention, as shown in FIG. This maintains the flatness of the outer wall surface of the structure. That is, as shown in the figure, the large panel support fitting 9 fixed to the tip of the steel frame 8 has a flat part 9a fixed to the steel frame 8, a flat part 9c supporting the large panel A, and a rising part 9b. The sides form a ⊥ shape. The flat portion 9a and the rising portion 9
b has loose holes 9'a and 9'b for fastening, respectively.
is perforated. After adjusting the position of the large panel support fitting 9, such as surface leveling with respect to the steel framework 8, through the loose hole 9'a of the flat part 9a, it is fully tightened with bolts 10, and further welding 11, etc. It is fixed to the steel framework 8 by means.

The self-weight bearing support fitting 6 joined to the large panel support fitting 9 is used to erect the large panel A, and
A bolt 12 is inserted into a loose hole 9'b provided in a rising portion 9b of the large panel support fitting 9, and the bolt 12 is screwed into a nut 12a welded to the rising portion 6a. A nut 13a, which is screwed into the vertical adjustment bolt 13 of the large panel A, is welded to the flat part 6b. Therefore, when erecting the large panel A, the rising portion 6a of the self-weight support fitting 6
Bolt hole and rising part 9 of large panel support fitting 9
Insert the bolt 12 into the loose hole 9'b of b.
It is screwed into the nut 12a, that is, temporarily fastened.

Next, the bolt 13 is screwed into the nut 13 welded to the flat part 6b of the weight bearing support fitting 6 of the large panel A, and the nut 13 is screwed in as appropriate.
The lower end of the bolt 13 comes into contact with the upper surface of the flat part 9c of the large panel support fitting 9, and by further screwing the bolt 13, the upper end of the dead weight support fitting 6 (i.e., the steel framework of the large panel height position) can be adjusted. Furthermore, the steel frame frame 8 of the large panel A above
After making adjustments in the vertical direction, the temporarily fastened bolts 12 are fully tightened to complete the positioning of the large panel A itself.

As mentioned above, the large panel support fittings 9 are fixed to the steel framework 8 in an adjusted position, so the front surface of the outer wall of the structure made up of the large panels A has a uniform flatness over the entire surface. . After the above positioning of the large panel A is completed, the upper end of the large panel A is next fixed to the steel framework 8'.
That is, as shown in Fig. 4, a large panel support fitting 9' is fixed to the tip of the steel framework 8'.
The flat portion 9'a and the vertical portion 9'b are each provided with loose holes for fastening, as described above. First, the large panel support fitting 9' is positioned on the steel framework 8' through the loose hole in the flat part 9'a, and after final tightening with bolts 10', welding 11', etc. It is fixed to the steel framework 8' by means. On the other hand, the self-weight support bracket 6' of large panel A has
A nut 12' is welded to be screwed onto a bolt 13' inserted through a loose hole in the vertical part 9'a.
The self-weight bearing support fitting 6' is brought into contact with the outside of the vertical portion 9'b of the large panel support fitting 9' and is fully tightened and fixed.

Fig. 5 shows the joint joint X of the large panel A built vertically on the outer wall of the structure and its rain cover structure.
9. Each of the water receptacles 21 serves as a rain cover. In the figure, a drain groove 15 is provided at the center of the upper end surface of each unit panel 1 constituting the large panel A, extending across the width of the unit panel 1. Reference numeral 16 denotes a panel holder; the panel holder 16 contacts the lower edge of the upper unit panel 1 via a draining plate 19, which will be described later, and connects to the panel mounting bracket 17 via a flat bar 18. Fixed by welding. Reference numeral 20 indicates a mounting bolt for fixing each unit panel 1 to the panel mounting bracket 17, and 19 indicates a drain plate interposed between the panel holder 16 and the lower end surface of each unit panel 1. The plate 19 has a substantially square-shaped side surface and includes a water receiving piece 19a and a water guiding piece 19b. The water receiving piece 1
9a is on the inside (back side) of each unit panel, and the water guiding piece 19b is on the above-mentioned drainage groove 15 and the unit panel 1.
It is arranged so that it is located at the top of the hollow part of. On the other hand, 21 is a water receptacle placed between adjacent large panels A, and the water receptacle 21 consists of a support part 21a, a saucer part 21b, a rising part 21c, and a water guiding part 21d, and one side of the rising part 21c. 21'c is formed higher than other parts, and the support part 2
1a has a deep reverse channel cross-sectional shape, and the support portion 21a is clamped and fixed to molded steel provided at the left and right edges of the large panel A. Further, the saucer portion 21b covers the joint joint X between the large panels, and the water guiding portion 21d is arranged above the drainage groove 15 of the unit panel 1. Reference numeral 22 indicates a caulking backup material interposed at the vertical joint portion of the unit panel 1, and 23 indicates a caulking material.

In the rain cover structure with the above configuration, rainwater that has entered from the large panel A located at the top is prevented from entering the indoor side by the water receiving piece 19a of the draining plate 19, and the large panel A located at the bottom It flows down into the hollow part 2, but is prevented from flowing into the indoor side by the drainage groove 15, and flows further down from the hollow part 2 to the large panel A further below, and is prevented from entering the room in the same way. There is no.

Furthermore, even if rainwater once flows into the framework from the joint joint X through external wind pressure, further infiltration is blocked by the rising portion 21c of the water receiver 21.
The water is allowed to flow down by the saucer portion 21b, and further flows from the water guiding portion 21d into the draining portion 15 or the hollow portion 2, thus achieving a complete rain-covering function as described above.

<Effects of the Invention> As explained above, the method for constructing the exterior wall of a structure using large panels according to the present invention simplifies construction work compared to the conventional panel construction method, thereby reducing construction labor and construction period. It is possible to shorten the
Furthermore, the large panel itself is made by integrating unit panels with shaped steel, and has sufficient surface rigidity. In addition, the loose holes provided in the support fittings can absorb interlayer displacement with the structure, thereby preventing cracks in the panel during earthquakes and the like. Furthermore, since each joint is provided with a highly watertight rain protection structure, the durability of the structure itself is increased, and a simple exterior wall that requires no maintenance can be constructed.

[Brief explanation of the drawing]

FIG. 1 is a front view of a large panel according to the present invention;
FIG. 2 is a sectional view taken along the line - in FIG.
FIGS. 3 and 4 are diagrams illustrating how a large panel is built into a steel framework, and FIG. 5 is a diagram illustrating a rain cover structure at a joint joint of a large panel. A...Large panel, 1...Unit panel, 2...
Hollow part, U...upper panel group, D...lower panel group, X...joint joint, Y...middle joint, 5...
...Shaped steel, 5'...Central beam, 6...Large panel self-weight bearing support fitting, 8...Shaft assembly, 9...Large panel support fitting, 9'a, 9'b...Loose hole, 15...Drainer Groove, 19...draining board, 21...water receiver.

Claims (1)

[Claims] 1. A plurality of vertically long rectangular unit panels arranged horizontally are arranged vertically as an upper panel group and a lower panel group in order to adapt to the height of the required dimension to be built between each floor. A middle crosspiece is provided for joining and fixing the upper panel group and the lower panel group as an intermediate joint between the lower edge of the upper panel group and the upper edge of the lower panel group, and the entire periphery is made of shaped steel. At the same time, a large-sized panel is assembled by enclosing the weight-bearing support metal fittings on the shaped steel on both side edges of the panel, and attaching the weight-bearing support metal fittings of the large panel to the steel framework of the structure with loose holes set in advance. After erecting a predetermined number of panels at the positions where they will be joined to the panel support brackets, they are temporarily fastened. After adjusting the upper and lower positions of these large panels, the weight support brackets of the large panels are fixed to the steel framework, and then these By forming a rain cover structure consisting of a drain groove, a drain plate, and a water catcher at the joints between large panels, it is possible to reduce the looseness provided on the large panel support fittings positioned on the steel framework. A method for constructing an exterior wall of an architectural structure using large panels, characterized in that each large panel is made to correspond to the interlayer displacement of the structure through holes.