JP2004346672A - Double-beam structure, building constructed in external heat insulation manner by double wall structure supported on the same, and building method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a building, in which a loss by the heat insulation of the whole building by an external heat-insulating construction method is inhibited minimally and a heat insulation property and an external facing material can be selected freely in response to purposes, in the building with a projecting section such as a balcony, a corridor, an eaves, a parapet or the like and the building, in which the selection of the external facing material is required variously, and to provide a building method. <P>SOLUTION: The building is constituted so that a heat-insulating layer is held to a skeleton outer wall surface, a double beam is installed in parallel with a skeleton beam and the balcony, the corridor, the eaves, the parapet or the like are supported while a double wall for an external facing having the heat-insulating layer is mounted between the upper and lower sections of the double beam in an RC-constructed apartment house. Accordingly, the thickness of the heat-insulating layer can be set freely, and the external facing material is not limited by a weight or the like and can be selected freely because the external facing material is supported between the upper and lower sections of the double beam. Since the heat-insulating layer of the outer wall is continued rationally to foundation/roof heat-insulating layers, the heat insulation property of the whole building can be improved easily. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a building thermally insulated by an external heat insulation method and a building method thereof, and particularly to a building having a protruding portion such as a balcony, a corridor, an eave, and a parapet, to ensure good heat insulation as a whole building, The present invention also relates to a rational and favorable construction method that can respond to various requirements for exterior materials.
[0002]
[Prior art]
2. Description of the Related Art External thermal insulation methods have been known, and their theoretical effects (energy saving, indoor environment improvement, frame durability improvement, etc.) are well known. However, this method still has many problems to be solved, such as measures against heat insulation defects, eliminating constraints on exterior materials, improving durability, and improving productivity, so that the entire building can be rationally solved comprehensively. The way is expected.
[0003]
[Problems to be solved by the invention]
For example, in the case of an RC-constructed apartment or the like, it is often constituted by a wall surface having a portion (hereinafter referred to as a protruding portion) such as a balcony, a corridor, an eave, and a parapet, and a wall surface having no protruding portion such as a wife side. When such a building is provided with a heat insulating layer by the external heat insulating method, wrapping the protruding portion with the heat insulating layer involves complicated work in waterproofing treatment and exterior material treatment, resulting in productivity and durability problems. , Not realistic.
In addition, in the case of the wall of the wife wall, the thicker the heat insulation layer, the heavier the exterior material, and the higher the building, the more the exterior material mounting bracket to be attached to the frame is required, which results in high cost. Then, a heat bridge (thermal bridge) is generated from this portion.
[0004]
The present invention has been made in view of the above points, and in a building having a protruding portion, the heat insulation loss of the entire building is minimized by an external heat insulation method, and the heat insulation performance (thickness of a heat insulating layer) and the exterior material are reduced. It is possible to provide a building and a building method that can be freely selected according to the purpose and that it is reasonably easy to form not only the outer wall surface but also the heat insulating layer of the foundation and the roof continuously and integrally. Aim.
[0005]
[Means for Solving the Problems]
The object of the present invention is to eliminate the need for insulation work on the projecting portion by supporting the projecting portion with a double beam installed in parallel with the frame beam with the heat insulating layer sandwiched on the outer wall surface of the frame as described in claims 1 and 4. In addition, the present invention is achieved by a building and a building method in which the heat insulating layer is not lost due to the exterior double wall (having a heat insulating layer and being independent of the skeleton) supported by the double beams.
[0006]
In addition, the double beams and double walls of the building according to claim 1 can freely set the thickness of the heat insulating layer, and the double walls are supported on each floor above and below the double beams. The types and combinations of the exterior materials can be freely set without being limited by the weight and the like. The above object is achieved by a building and a building method according to claims 2 and 5.
[0007]
Further, in view of the entire building, the above object is as described in claim 3 and claim 6, wherein the outer wall heat insulating material and the foundation and the roof heat insulating layer thermally insulated by the outer heat insulating method are rationally connected. And by building methods.
[0008]
Further, as described in claim 7, the construction of the double beam of the building in claim 1 is formed integrally and simultaneously with the building frame of the building together with the heat insulating layer and the protruding portion, thereby streamlining the construction.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic plan view of an RC apartment house according to one embodiment of the present invention, and FIG. 2 is a beam plan view of the building shown in FIG.
[0010]
As shown in FIG. 1, a dwelling unit 1 of an RC apartment house has a balcony 2 and a common corridor 3 on each floor. The balcony 2 and the common corridor 3 are supported by a double beam 16 supported by a cantilever 15 as shown in FIG. The outer material is also supported by the double beams 16. The same applies to the wife side without the protruding portion.
[0011]
FIG. 3 is a longitudinal sectional view of the common hallway (AA). As shown in FIG. 3, a driving heat insulating material 20 is sandwiched between the double beam 16 and the main body beam 13, and this double beam 16 supports the cantilever slab 17, the file 6, and the eaves 4 constituting the corridor. I do. The double beam 16 is provided with the filling base material 30 (also serving as a ventilation layer) and the covering material 31 after the filling heat insulating material 22 is installed. Vent holes 35 are attached to the upper and lower sides of the double wall. Further, the outer wall heat insulating materials 20 and 22 are formed continuously with a driving heat insulating material 21 serving as a basic heat insulating layer and a retrofit heat insulating material 23 serving as a roof heat insulating layer.
[0012]
FIG. 4 is a longitudinal sectional view of the balcony (BB). When the balcony or the like is large, when the load is large, the cantilever beams 15 and the small beams 14 support the slabs, the files 6 and the eaves 4 constituting the balcony, and the basic configuration is the same as that of FIG.
[0013]
FIG. 5 is a longitudinal sectional view of the wife side (CC) without a protruding portion. As shown in FIG. 5, the structure is basically the same as that of FIG. 3, but since the parapet 5 is attached to the double beam 16, the continuity between the outer wall heat insulating layer and the roof heat insulating layer 23 is good. Further, a cloth foundation 19 is provided outside the basic heat insulating layer to support the exterior material, but the double beam 16 may be used when the exterior material is heavy.
[0014]
In FIGS. 3, 4 and 5, the exterior base material 30, the exterior material 31 and the self-supporting exterior material 32 constituting the double beam 16 and the double wall are independent of the building frame, so that the thickness of the heat insulating layer Can be set freely, and loss of the heat insulating layer can be eliminated. Further, since this double wall is supported on each floor between the upper and lower portions of the double beam 16, it can be freely combined and selected without being restricted by the weight of the exterior material. In addition, even if this building is viewed as a whole, the portion where the thermal bridge occurs is only the portion of the cantilever 15, and the heat insulation reinforcement can be easily performed. In this way, good heat insulation performance is obtained for the entire building.
[0015]
FIG. 6 is a plan view of the double beam 16 portion (DD) shown in FIGS. 3, 4, and 5. As shown in FIG. 6, the cantilever 15 is projected from the skeleton, and the double beam 16 is supported. In addition, the construction of the double beams 16, the implanted heat insulating material 20, the balconies, the corridors, the eaves, the parapets, etc. can be streamlined by casting concrete together with the pillars 12, the girders 13, the outer walls, the doors, etc. .
[0016]
FIG. 7 is a plan view of the double wall portion (EE) shown in FIGS. 3, 4, and 5. As shown in FIG. 7, an exterior base material 30, an exterior material 31 attached to the exterior base material 30, and a self-contained exterior material 32 are shown with the filled heat insulating material 22 interposed therebetween. These exterior materials are supported between the upper and lower portions of the double beam.
[0017]
FIG. 8 is a plan view of the sash portion (FF) shown in FIGS. 3, 4, and 5. FIG.
[0018]
FIG. 9 is a diagram showing the configuration of the cantilever portion (GG) shown in FIG. There is a driving heat insulating material 20 along the double beam, and a filling heat insulating material 22 is installed above and below. In this building, only the 15 cantilever beams become thermal bridges.
[0019]
In the above embodiment, the case of the ramen structure is shown, but the present invention is also applicable to a building having a structural type such as a wall structure, a wall-type ramen structure, an out-frame ramen structure having columns and beams provided outside a balcony or the like. . In particular, in the case of a wall structure, the rationalization in construction can be achieved because columns and beams do not protrude inside the dwelling unit.
[0020]
【The invention's effect】
As described above, according to the present invention, balconies, corridors, eaves, parapets, etc. and exterior double walls are supported by double beams provided in parallel with the frame beams with the heat insulation layer interposed between the frame and the outer wall surface. Therefore, a building and a building method in which heat insulation loss is minimized and heat insulating performance (thickness of the heat insulating material) and exterior materials can be freely selected according to the purpose are provided at a reasonable cost.
[0021]
In addition, since the foundation and the roof heat insulating layer constructed by the external heat insulating method and the above-mentioned outer wall heat insulating layer are ideally connected, the heat insulating performance of the whole building can be easily improved.
[Brief description of the drawings]
FIG. 1 is a schematic plan view of an RC apartment house according to an embodiment of the present invention.
FIG. 2 is a plan view of the building shown in FIG. 1;
FIG. 3 is a longitudinal sectional view of a corridor (AA).
FIG. 4 is a longitudinal sectional view of a balcony (BB).
FIG. 5 is a longitudinal sectional view of the wife side (CC).
FIG. 6 is a plan view of a double beam portion (DD) shown in FIGS. 3, 4, and 5;
FIG. 7 is a plan view of a double wall portion (EE) shown in FIGS. 3, 4, and 5;
FIG. 8 is a plan view of a sash portion (FF) shown in FIGS. 3, 4, and 5;
9 is a diagram showing a configuration of a cantilever portion (GG) shown in FIG.
[Explanation of symbols]
1 dwelling unit 2 balcony 3 common corridor 4 eaves 5 parapet 6 parapet 6 sash 7 sash 10 door boundary wall 11 outer wall 12 pillar (in case of ramen structure)
13 Large girder 14 Small girder 15 Cantilever 16 Double girder 17 Cantilever slab 18 Underground girder 19 Cloth foundation 20 Driving insulation (non-combustible-inorganic water-repellent insulation board etc.)
21 Driving insulation (organic-polystyrene foam, etc.)
22 Filled insulation (non-combustible-inorganic)
23 Retrofit insulation (organic-polystyrene foam, etc.)
30 Exterior base material (also used as ventilation layer. Non-combustible-LGS, etc.)
31 Exterior materials (non-combustible-metal plate, siding, dry tile, etc.)
32 Self-supporting exterior materials (non-combustible bricks, decorative blocks, etc.)
33 Waterproof base material (mortar, non-combustible board, etc.)
34 ventilation layer 35 ventilation hole

Claims (7)

The exterior insulation method is characterized by having a double wall for exterior supported by a double beam provided in parallel with the frame beam with an insulation layer sandwiched on the outer wall of the frame and projecting parts such as balconies, corridors, eaves, and parapets Insulated building The building according to claim 1, wherein the thickness of the heat insulating layer, the exterior base material and the exterior material can be freely selected. The building according to claim 1, wherein the building has a foundation of an external heat insulation method connected to an outer wall heat insulation layer and a roof heat insulation layer. A method for building a building thermally insulated by an external insulation method, wherein the building according to claim 1 is built. A method for building a building thermally insulated by an external heat insulation method, and the method for building a building according to claim 2. A method for building a building that has been insulated by an external insulation method, and the method for building a building according to claim 3. 5. The method according to claim 4, wherein the double beam according to claim 1 is formed integrally with a building frame together with a heat insulating layer and a protruding portion.

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