JP2007262667A - Outer wall structure with cantilever wing wall, method of constructing the outer wall, and wall z-reinforcement panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress heat transfer from a reinforced concrete wing wall to a bearing outer wall by forming the concrete wing wall in a secondary structure of a concrete skeleton to thermally isolate it from the concrete skeleton and projecting therefrom by cantilevered supporting, and improve the degree of freedom of the design of the concrete wing wall. <P>SOLUTION: The concrete outer wall W is externally thermally insulated by covering it with an externally thermally insulated composite panel 2. The reinforced concrete wing wall 5 is thermally isolated by a thermally isolating layer 3B from the concrete outer wall W and projected therefrom. The Z-reinforcement 1 of a support steel bar is extended through the heat insulating layer and held therein. One half of the projecting part AP is integrated in a concrete skeleton CF, and the other half of the projecting part BP is integrated in a concrete wing wall 5 by depositing concrete. The reinforced concrete wing wall 5 is cantilevered on the concrete skeleton CF with the Z-reinforcement 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a reinforced concrete exterior heat insulating building, a balcony sleeve wall, a pouch sleeve wall, a decorative wall projecting from the outer wall (hereinafter referred to as a sleeve wall in the present specification), etc. in a cantilever manner on the outer wall of a concrete frame. A method of constructing the outer wall using the constructed outer wall structure and a heat insulating panel (hereinafter referred to as a wall Z-stripe panel) provided with a supporting rebar, and a wall Z-stripe panel suitable for construction of a cantilevered sleeve wall It belongs to the technical field of architecture.

In a reinforced concrete building, the sleeve wall protruding from the outer wall supports floor slabs protruding from the outer wall, such as balconies, fences, and outer corridors, prevents the spread of fire in the event of a fire, protects privacy, blocks wind and rain, etc. However, in the case of an outer heat insulating concrete building in which the heat insulating layer covers the outer surface of the concrete frame, the concrete sleeve wall protruding from the outer wall of the concrete frame becomes a heat bridge, and the concrete There are problems of energy loss due to deterioration of the external insulation function of buildings, health problems due to mold and mites due to internal condensation.
And as a heat bridge countermeasure of a sleeve wall, there exist the prior art example 1 shown in FIG. 8 (A), and the prior art example 2 shown in FIG. 8 (B).

That is, Conventional Example 1 in FIG. 8A is listed in non-patent literature, and the entire outer surface of the sleeve wall is a composite panel (heat insulating layer + exterior base material) in the same manner as the concrete outer wall of the concrete frame. This is a method of coating the outer heat insulation.
Further, Conventional Example 2 in FIG. 8B is also cited in the non-patent literature, and the outer wall of the concrete casing is covered with the outer insulation by the composite panel, but the sleeve wall protruding from the concrete wall is Without heat insulation coating, the heat insulation function is reinforced by sticking heat insulation material to the inside of the concrete frame, that is, the part that receives the action of the thermal bridge (cold bridge) from the concrete sleeve wall inside the outer wall. is there.
In both of the conventional example 1 and the conventional example 2, as shown in FIG. 8C, the longitudinal bars in the sleeve wall are extended into the foundation beam so that the sleeve wall exhibits a bearing wall function.
Published by the Hokkaido Thermal Insulation Council, “2003 edition, RC exterior thermal insulation handbook, pages 40-47: Calculation of heat loss coefficient”

In Conventional Example 1, as shown in FIG. 8 (A), both the side surfaces and the front end surface of the sleeve wall, that is, the entire outer peripheral surface of the sleeve wall are covered with the composite panel. However, the thickness of the sleeve wall becomes large, the workability of sticking corresponding to the shape of the sleeve wall of the composite panel, especially the sticking of the front end face is poor, and the cost of the composite panel sticking construction is high .
Moreover, the space of the balcony on the side surface is narrowed due to the increase in the thickness of the sleeve wall, and the sleeve wall having the same shape as the concrete outer wall is not preferable in terms of beauty.

Further, in the conventional example 2, as shown in FIG. 8 (B), the sleeve wall is not covered with the composite panel, so that the thickness of the sleeve wall can be reduced, but the sleeve wall becomes a thermal bridge to the concrete frame, In order to suppress the thermal bridge, a heat insulating reinforcing material is attached to the inner surface of the concrete frame. However, the heat insulating reinforcement on the inner surface of the concrete frame can be expected to reduce the thermal bridge only by about 25%. The thermal bridge control function is lower than the wall.
In addition, there is a step due to the heat insulation reinforcing material on the inner surface of the concrete frame, and it is necessary to attach an interior material sticking ground to eliminate the step of the heat insulation reinforcing material when finishing the interior, and the number and cost of construction on the interior finishing surface are reduced. Increase.
In addition, there is a disadvantage that the heat storage property of the concrete wall is impaired by the arrangement of the heat insulating reinforcing material.

The sleeve wall of the conventional example 1 shown in FIG. 8 (A) and the sleeve wall of the conventional example 2 shown in FIG. 8 (B) are both balcony floor slabs as shown in FIG. 8 (C). It is a load bearing wall that supports the sleeve wall and transmits the axial force (vertical force) of the sleeve wall to the foundation beam in the soil.
For this reason, the thickness of the sleeve wall needs to be 180 mm as standard, and the axial force is transmitted downward, so that an opening (decorative window) cannot be arranged on the sleeve wall.
In addition, since the sleeve wall is continuous with the foundation beam in the soil, the construction of a large-diameter drain pipe buried in the soil becomes complicated.
The present invention solves or improves the problems of the conventional examples 1 and 2, and cantilever the reinforced concrete sleeve wall itself from the concrete wall without causing stress interference with the balcony or the outer wall. The present invention provides a technique that can be constructed in a supported form and in a form that suppresses the thermal bridge to the concrete wall.

  The outer wall structure of the present invention is, for example, as shown in FIG. 1, in which a reinforced concrete sleeve wall 5 protrudes from a reinforced concrete concrete outer wall W in a cantilevered form, and the outer wall W includes a heat insulating layer 2B. The outer base material 2A and the composite panel 2 layered on the outer heat-insulating coating, the sleeve wall 5 is thermally insulated from the base wall 5b by the outer wall surface Wf and the heat-insulating layer 3B, and the insertion hole of the heat-insulating layer 3B One half of the projecting portion AP of the Z bar 1 penetrating H1 is fixed in the concrete frame CF, and the other half of the projecting unit BP is integrally fixed in the sleeve wall 5 by concrete placement. It is what you support.

In this case, the heat insulating layer 3B only needs to be able to suppress the thermal bridge action from the reinforced concrete sleeve wall to the reinforced concrete frame CF, and is typically a foamed plastic type heat insulating layer of JISA9511, and the heat insulating layer 2B of the composite panel 2 The Z material 1 may be made of the same material and have the same thickness, and the Z reinforcement 1 may support the load stress of the reinforced concrete sleeve wall 5 safely, and the number and arrangement interval of the Z reinforcement 1 may be determined by structural calculation.
In the present specification, the Z bar 1 is a general term for a reinforcing bar support bar that extends horizontally across the sleeve wall 5 and the concrete frame CF and supports the sleeve wall 5 in a cantilevered manner. Even in such a case, as shown in FIG. 4, a truss structure in which two steel bars 1U and 1D are integrally strengthened with a truss bar 1M may be used.
Moreover, the concrete frame CF is a frame of a reinforced concrete building, and includes an outer wall, a beam, a column, a floor slab and the like constituting the building frame.

Therefore, in the outer wall structure of the present invention, the outer wall W of the concrete casing is covered with the outer thermal insulation coating by the composite panel 2, and the sleeve wall 5 protruding from the outer wall W is also between the base end 5b of the concrete sleeve wall and the surface Wf of the concrete outer wall. Is thermally shielded by the heat insulating layer 3B, the thermal bridge action from the sleeve wall 5 to the concrete frame CF is only the action of the concrete of the sleeve wall 5 → the Z-stripe → the concrete frame, and the conventional sleeve wall It is possible to prevent the thermal bridge action of concrete → outer wall concrete of No. 5, and greatly reduce the thermal bridge action from the concrete sleeve wall to the concrete frame (about 1/2).
Moreover, the Z rebar 1 in the reinforced concrete sleeve wall 5 of the present invention can be selected and determined by selecting and determining the type and arrangement structure of the Z rebar 1 as well. Therefore, the outer wall structure of the present invention, combined with the outer heat insulation coating of the outer wall W, becomes a concrete frame in which the thermal bridge action from the outside air is greatly reduced.

In addition, the reinforced concrete sleeve wall 5 is structurally supported in a cantilever form by only one group of Z bars independently of the concrete frame, so that the shape of the sleeve wall 5 can be designed freely, and the aesthetic necessity Thus, the arrangement of windows (openings) and the height of the sleeve wall 5 can be freely constructed, and the design of the concrete sleeve wall can be made freely.
In addition, the reinforced concrete sleeve wall 5 is an independent accessory (secondary structure) in terms of structural mechanics, so that the thickness of the wall can be reduced, which is advantageous for securing the space on the balcony floor. It is possible to cope with aesthetics and discriminating preferences due to the difference in thickness between the left and right sleeve walls.

Further, in the outer wall structure of the present invention, for example, as shown in FIG. 2, the heat insulating layer 3B that thermally blocks the sleeve wall 5 has a thickness TB substantially equal to the thickness T3 of the heat insulating layer 2B of the composite panel 2. It is preferable that the heat insulating layer 3B and the heat insulating layer 2B are in continuous contact with each other.
In this case, it is only necessary to arrange the heat insulating layer 3B for holding the Z-strip 1 between the composite panels 2 and in alignment with the composite panel heat insulating layer 2B in the mold work for placing concrete. 2 and a separate and independent heat insulating layer 3B are facilitated, and a concrete sleeve wall 5 having the same thermal bridge suppression function as the composite panel covering the concrete outer wall W is obtained.

Further, as shown in FIG. 4B, the Z line 1 is composed of a Z upper line 1U and a Z lower line 1D, and a Z truss line 1M comprising a horizontal upper side 1U ′, an intermediate inclined part 1S and a horizontal lower side 1D ′. Thus, it is preferable to integrally fix the stress center distance L15 in the vertical direction.
In this case, the diameters and lengths of the Z upper bar 1U and the Z lower bar 1D may be determined by the structural calculation of the concrete sleeve wall 5 to be applied. In addition, from the viewpoint of adhesion strength with concrete, a deformed steel bar having the same diameter is preferable, and the Z lower end reinforcing bar 1D is a compression drag load, and therefore can be shorter than the Z upper limit bar 1U of the tensile drag load.

In the Z reinforcement 1, the Z upper end reinforcement 1 U and the Z lower end reinforcement 1 D are integrated while maintaining the required stress center distance L 15 in the vertical direction. ) If the thickness T5 of the sleeve wall 5 is 180 mm, the depth LB is 1500 mm, and the height 1h is 2700 mm of the floor height, the number of Z-strips 1 required to support the concrete sleeve wall 5 ( In the case of both the Z upper bar 1U and Z lower bar 1D having a diameter of 22 mm, the number is 1.52, but the safety factor is 3). Can be divided into three at a floor height of 1 h (standard: 2700 mm), and Z stripes 1 can be arranged at intervals of 900 mm in the center of each divided height (3 h).
Therefore, as shown in FIG. 3, if the Z-stripes 1 are arranged in the form of the wall Z-stripe panel 3 in which the height 3h is 900 mm and the Z-stripes 1 are arranged in the center between the upper and lower sides of the heat insulating layer 3B, the Z-stripes 1 are small in number. Therefore, it becomes easy to arrange and fix the Z-stripes 1 when the reinforced concrete sleeve wall 5 is formed, and to place the Z-strips 1 around the Z-strip 1 so that the workability of constructing the concrete sleeve wall 5 is improved. .

Further, in the invention of the outer wall structure, as shown in FIG. 6 (A), the heat insulating layer 3B that thermally blocks the sleeve wall 5 has a width WB slightly larger than the wall thickness T5 of the sleeve wall 5, As shown in FIG. 4, it is preferable that the Z-strip 1 is penetrated and held in the insertion hole H1 in the form of a longitudinally long hole as shown in FIG.
In general, when projecting reinforced concrete sleeve walls on a reinforced concrete frame, the concrete is cast on the concrete frame and then on the sleeve wall for work. In this case, both sides 3L, 3R of the heat insulating layer 3B are placed. However, as shown in FIG. 5 (A), the composite panel 2 can be slightly (standard: 10 mm) entering the heat insulating layer 2B side, and both sides of the heat insulating layer 3B can be applied to the exterior base material 2A of the composite panel 2, It is easy to align the heat insulating layer 3B with the composite panel 2, and the displacement of the heat insulating layer 3B from the concrete frame (outer wall) side by the concrete fluid pressure is also suitably suppressed.
Since the insertion hole H1 of the Z line 1 is in the form of a vertically elongated hole, the Z line 1 can be easily inserted into the heat insulating layer 3B, and the heat insulation of the insertion hole H1 can be easily repaired. Preparation of the heat insulating layer 3B penetrating and holding the streaks 1 is facilitated.

Further, as shown in FIG. 4 (D), the Z-strip 1 supporting the sleeve wall 5 has an intermediate inclined portion 1S of the Z-strip 1 inclined and disposed over the entire thickness TB in the heat insulating layer 3B. It is preferable to impart a rigid structure function to the heat insulating layer 3B.
In this case, since the truss structure by the Z truss bar 1M can be introduced over the entire area of the thickness TB of the heat insulating layer 3B, the heat insulating layer 3B having a low strength is replaced with a concrete body in terms of mechanics. Since the sleeve wall 5 that is structured and integrated with the concrete frame CF also has a rigid structure in the heat insulating layer 3B, a sufficient stress center distance between the Z upper bar 1U and the Z lower bar 1D by the Z truss bar 1M. Combined with the addition of L15, the amount of bending due to the vertical bending moment of the concrete sleeve wall 5 can be extremely reduced (standard: displacement of the sleeve wall tip 5t is 0.494 mm, displacement of the sleeve wall base 5b is 0.001 mm). The concrete sleeve wall 5 can be firmly supported.

Further, as shown in FIG. 4C, the Z-strip 1 is applied with a rust preventive paint 1B at the protrusions AP and BP, and is applied with a fire resistant paint 1A within the insertion hole H1 of the heat insulating layer 3B. It is preferable that the refractory material 3E is filled and coated.
In this case, the Z-strand 1 is coated with an anti-corrosion and heat-resistant epoxy resin paint fire-resistant undercoat material (ESK Kaken Co., Ltd., trade name) as the heat-insulating rust-preventing paint 1B over the entire length, and the heat-insulating layer In addition, the SK fire-resistant coat top coat (SK Kaken Co., Ltd., trade name) may be overcoated as a fire-resistant paint 1A on the 3B-corresponding site. Is suppressed, and heat insulation and durability are improved.

Further, as the heat insulating refractory material 3E, it is rich in fire resistance and heat insulating properties, and can be cut with scissors. For example, Khao wool (Isolite Industry Co., Ltd., trade name) and Fiblok (Sekisui Chemical Co., Ltd., trade name) Or the like, the gap between the Z-strip 1 and the insertion hole H1 may be repaired by heat insulation.
Therefore, even if the heat insulating layer 3B burns at the time of a fire, the Z-strand 1 can suitably suppress the deterioration of the strength due to the fire of the Z-strand 1 by the two-stage defense of the heat-insulating refractory material 3E and the fire-resistant paint 1A. The concrete sleeve wall 5 having fire resistance and durability can be obtained at the same time by the necessary heat insulating function repair in the insertion hole H1 of the heat insulating layer 3B.

Further, in the invention of the outer wall structure, it is preferable that the Z reinforcement 1 is fixed in the concrete frame CF by bending the protrusion AP for fixing in the concrete frame CF as shown in FIG. 2 (B). .
In this case, since the projecting portion AP of the Z-strip 1 is in a bent form, the bent projecting portion AP can be disposed in the concrete housing CF within the thickness TW (standard: 180 mm) of the outer wall W.
Therefore, the projecting position of the reinforced concrete sleeve wall 5 from the concrete frame CF becomes free, and the degree of freedom in building design increases.
In addition, since the Z-strip 1 is in a bent form, the concrete adhering force is increased, and the projecting portion AP toward the concrete frame can be shortened.
When the fixing plate 1C is fixed to the tip of the Z-line protrusion part AP as shown in FIG. 2B, the protrusion part AP of the Z line 1 can be further shortened.

Moreover, in the invention of the outer wall structure, the concrete outer wall W is layered with a foamed plastic heat insulating layer 2B having a moisture permeability resistance smaller than that of the concrete outer wall W and an exterior base material 2A having a moisture permeability resistance smaller than that of the heat insulation layer 2B. The composite panel 2 is preferably covered and integrated.
In this case, since the moisture permeability resistance of the standard 180 mm thick concrete wall W is 126 m ² hmmHg / g, if the extruded polystyrene foam is adopted as the standard 75 mm thick heat insulating layer 2B, the moisture permeability resistance is 52.5 m ² hmmHg / g, the moisture resistance of the 12 mm thick magnesium cement board as the exterior base material 2A is 14 m ² hmmHg / g, and the composite panel 2 has a 75 mm thickness insulation of an extruded polystyrene foam board. If the layering type of the layer 2B and the 12 mm thick magnesium cement plate 2A is used, the moisture permeation resistance can be changed from large to small sequentially from the concrete wall W to the exterior base material 2A.

  Accordingly, the outer heat insulating outer wall on which the composite panel 2 is stretched is a structure in which indoor water vapor naturally flows out, and the reinforced concrete building with the reinforced concrete sleeve wall 5 projectingly is provided with the outer wall W covered with moisture permeable outer heat insulating coating. In addition to suppressing internal condensation, the concrete sleeve wall 5 also suppresses thermal bridges inside the building and suppresses internal condensation, resulting in an energy-saving building with excellent living environment without generation of mold and mites. .

  Further, as shown in FIG. 5 (A), the invention of the construction method of the outer wall is that the composite panel 2 for moisture permeable outer insulation in which the magnesium cement plate 2A and the foamed plastic heat insulating layer 2B are layered is used. As an outer wall outer formwork F0, the outer wall formwork FW is constructed together with the conventional outer wall inner formwork F1. As shown in FIG. A plurality of wall Z-stripe panels 3 each having a Z-bar 1 penetrating and holding a heat-insulating layer 3B having the same thickness as 2B are successively abutted from the bottom to the top, and the heat-insulating layers 3B collide with each other up and down. 3 heat insulation layer 3B and the heat insulation layer 2B of the side composite panel 2 are continuously and vertically erected, and conventional wall molds F5 'and F5 "are erected on both sides of the wall Z-stripe panel 3. And constructed by connecting the sleeve wall formwork F5 to the outer wall formwork FW. The bar arrangement in the frame F5 is constructed in a self-contained form, and then the concrete is placed on the outer wall form frame FW and the sleeve wall form frame F5, and the half protrusion AP of the Z line 1 in the sleeve wall form frame F5 is formed. In the concrete outer wall W, the other half of the protrusion BP is integrally fixed in the sleeve wall 5.

In this case, in the composite panel 2, a foamed plastic-based heat insulating layer 2B is made of JIS A9511 having a thickness T3 of 75 mm, such as an extruded polystyrene foam, a hard urethane foam, etc., and a thickness of the magnesium cement plate 2A. What is necessary is just to employ | adopt the thing of 12 mm, and what is necessary is just to employ | adopt the same material as the composite panel heat insulation layer 2B also for the heat insulation layer 3B of the wall Z reinforcement panel 3. FIG.
Further, as shown in FIG. 4, the wall Z-stripe panel 3 includes a heat insulation layer 3B as a panel body, a Z upper end 1U and a Z lower end 1D as a Z streak, a horizontal upper side 1U ', and an intermediate inclined portion. Z truss bar 1M composed of 1S and horizontal lower side 1D 'is used to penetrate and hold Z bar 1 of vertical truss structure with strong tensile resistance and compression resistance, which is fixed in one piece while maintaining stress center distance L15 in the vertical direction. What is necessary is just to employ | adopt the wall Z stripe panel 3 which was made.
Further, the vertical Z height 3h of the wall Z bar panel 3 and the number of the upper and lower parts continuously arranged are calculated by structural calculation of the number of Z bars 1 necessary for supporting the concrete sleeve wall 5, and the required number of Z bars 1 is determined. It can be determined so that they can be arranged at equal intervals.

Therefore, in the invention of the construction method of the outer wall provided with the cantilevered sleeve wall, the outer wall formwork FW is constructed by the conventional outer wall scraping frame construction technique, and the sleeve wall formwork F5 is constructed by the conventional sleeve construction. During the process of building the wall formwork, only the wall Z-stripe panel 3 need only be vertically connected in the sleeve wall formwork, and the bar arrangement in the sleeve wall formwork F5 is self-contained, that is, vertical Since the reinforcement 8A, the transverse reinforcement 8B, and the width stop reinforcement 8C are in a form completed only within each sleeve wall formwork F5, the arrangement of the reinforcement into the outer wall formwork FW and the inside of the sleeve wall formwork F5 are performed. The bar arrangement work can be performed separately, and the workability of the bar arrangement is also good.
And since only Z group 1 group penetrates the heat insulation layer 3B and protrudes in the outer wall formwork FW from the sleeve wall formwork F5 provided with the self-contained form of reinforcement, the sleeve wall obtained by concrete placement 5 is a reinforced concrete sleeve wall 5, but the concrete outer wall W is thermally cut off by the heat insulating layer 3B of the wall Z-strip panel 3, and only the Z-strip 1 group communicates, and the reinforced concrete outer wall W is also a composite panel. Since the outer thermal insulation coating is applied to the concrete casing CF, the external thermal bridge structure according to claim 1 can be suitably implemented in the concrete frame CF with the thermal bridge action from the outside being suppressed.

Further, in the invention of the construction method, as shown in FIG. 3, for example, the wall Z-stripe panel 3 has a panel height 3h of equally divided dimensions of the floor height dimension 1h, and is centered in the vertical direction of the wall Z-stripe panel 3. It is preferable to arrange the Z line 1.
In this case, the height of the wall Z-strip panel 3 having one Z-strip may be determined by structural calculation based on the Z-strip 1 employed.
Further, the penetration and fixing of the Z-strip 1 to the center of the heat insulating layer 3B as the panel body is not only good in workability, but each wall Z-strip panel 3 has the same structure. Without any vertical connection, the Z bars 1 are arranged at regular intervals in the concrete sleeve wall 5, and the vertical connection of the wall Z bars panel 3 is facilitated. In particular, as shown in FIG. It is advantageous for heights of up to 1 h.
The shortened wall Z-stripe panel 3 can be easily manufactured, stored and transported, and can cope with the construction of a shortened sleeve wall.

Further, when the sleeve wall formwork F5 is constructed, the abutting connection between the heat insulating layer 3B of the wall Z-stripe panel 3 and the heat insulating layer 2B of the composite panel 2 is as shown in FIG. It is preferable to fit the joining plate 3A across the groove 3G and the slit groove 2G of the heat insulating layer 2B.
In this case, the bonding plate 3A regulates the relative positional relationship between the heat insulating layer 3B and the heat insulating layer 2B in the front-rear direction (vertical direction in FIG. 6A). The standard is a wall thickness of 3 mm and a width. A plastic plate with a height of 80 mm and a height of 1 h (standard: 2700 mm) may be used, and the slit grooves 3G and 2G of both heat-insulating layers 3B and 2B have a slit width of slightly over 3 mm and a depth of over 40 mm, covering the entire height. However, when the joining plate 3A is frictionally held by the slit grooves 3G and 2G, the length of the joining plate 3A can be shortened and can be partially inserted into the heat insulating layers 3B and 2B.
Therefore, the use of the joining plate 3A facilitates the alignment and arrangement of the wall Z-strip panel 3 with respect to the heat insulating layer 2B of the composite panel 2, and the joining plate 3A is provided on the wall Z-strip panel 3 by the concrete pressure during concrete placement. There is an advantage of suppressing displacement.

In constructing the sleeve wall mold F5, the upper and lower connecting portions J3 of the wall Z-stripe panel 3 are separated from the heat insulating layer 3B in the sleeve wall mold F5 as shown in FIGS. 6 (A) and 6 (B). It is preferable to sandwich and hold using 10H ′, KP con 11A, and anchor 11B.
In this case, the separator 10H ′, the KP con 11A, the anchor 11B, and the like are posture holding members that are commonly used.
As shown in FIG. 4, the wall Z-stripe panel 3 is a plate-like heat-insulating layer 3 </ b> B that has the Z-bar 1 penetrated and fixed. In the sleeve wall formwork F <b> 5, the height of the sleeve wall 5 (standard: It is necessary to hold the heat insulating layer 3B which is connected and extended up and down by the floor height 1h).
Then, by connecting the protruding portion of the anchor 11B into the outer wall mold FW and the protruding portion into the sleeve wall mold F5 with the reinforcement in each of the mold frames FW and F5, the heat insulating layer 3B is connected. The KP con 11A that holds and holds the portion J3 can be held in position, and by placing the KP con 11A on the upper and lower connection portions J3 of the heat insulating layers 3B of the wall Z muscle panels, the wall Z muscle panel 3 Displacement due to the pressure of the cast concrete can be suppressed in combination with the tight holding of the protrusions AP and BP with the reinforcing bars in the molds FW and F5.
Therefore, the vertical connection and the position holding work of the wall Z-stripe panel 3 are facilitated, and the construction of the concrete sleeve wall formwork F5 is facilitated.
In this case, the separator 10H ′ connecting the KP cons 11A on both sides is a steel bar, but the thermal bridge is blocked by the KP con 11A.

In the invention of the construction method, as shown in FIG. 6 (A), the width WB of the heat insulating layer 3B of the wall Z-stripe panel 3 is set so as to protrude slightly on both sides from the sleeve wall thickness T5. Both side surfaces 3L, 3R are preferably brought into abutting contact with the entry surfaces 2L, 2R at the side ends of the heat insulating layer 2B of the composite panel 2.
In this case, the slightly protruding dimension from the side surface of the sleeve wall 5 of the both side surfaces 3L, 3R of the heat insulating layer 3B may be about 10 mm as a standard.
Accordingly, as is apparent from FIG. 6A, the heat insulating layer 3B of the wall Z-stripe panel 3 has both side surfaces because the projecting side surfaces 3L and 3R are in contact with the entrance surfaces 2L and 2R of the heat insulating layer 2B of the composite panel 2. 3L and 3R are placed on the exterior base material 2A of the composite panel 2 (typically a 12 mm thick magnesium cement plate), and the abutting contact work of the heat insulating layer 3B to the composite panel 2 is easy. In addition, the pressure displacement action on the heat insulation layer 3B by the concrete pressure generated by the concrete placement in the outer wall mold FW, which is performed prior to the concrete placement in the sleeve wall mold F5 in the work process. In addition, the exterior base material 2 </ b> A suitably exhibits a counter-supporting action.

In the invention of the construction method, the arrangement of the vertical bars 8A, the horizontal bars 8B, and the width stop bars 8C of the sleeve walls 5 on each floor is completed within each sleeve wall formwork F5, and the wall Z line panel It is preferable that only one group of three Z-stripes penetrates from the sleeve wall mold F5 into the outer wall mold FW.
Accordingly, each reinforced concrete sleeve wall 5 on each floor is cantilevered by only one group of Z bars arranged in the sleeve wall 5 independently, and each sleeve wall 5 can be a concrete frame CF or a balcony floor. Designed to be a secondary structure that is independent of the structure, etc., so that each sleeve wall 5 can be designed thinly, provided with an opening window, or the sleeve wall structure of the upper and lower floors can be different. Thus, it is possible to provide sleeve walls according to the desires of consumers.

  The invention of the wall Z-stripe panel that can be suitably used in the outer wall construction method of the present application is for building a cantilevered support sleeve wall 5 in which a Z-strip 1 is held through a foamed plastic heat insulating layer 3B as shown in FIG. In the wall Z-stripe panel 3, the heat insulation layer 3B has the same thickness TB as the heat insulation layer 2B of the composite panel 2 that covers the concrete wall W by heat insulation, and the wall thickness of the sleeve wall 5 formed by the width WB. The Z line 1 has a dimension that protrudes substantially 10 mm to the left and right from T5. The Z line 1 includes a Z upper line 1U and a Z lower line 1D, which are composed of a horizontal upper side 1U ', an intermediate inclined part 1S, and a horizontal lower side 1D'. The Z truss bar 1M is integrally fixed while maintaining a stress center distance L15 in the vertical direction, and one half protrusion AP of the Z bar 1 is a fixed part into the concrete frame CF, and the other half of the protrusion. The part BP is a fixed part in the concrete sleeve wall 5 and is a reinforcing bar controller. The REITs sleeve wall 5, the concrete skeleton CF, it is to integrate building under the thermal bridge suppressed.

In this case, the foamed plastic heat insulating layer 3B may employ a JISA foam heat insulating material such as an extruded polystyrene foam, a beaded polystyrene foam, or a rigid urethane foam.
Further, the number of the Z bars 1 to be used can be determined on the basis of the structural calculation of the thickness of the Z upper end bars 1U and Z lower end bars 1D and the concrete sleeve wall 5 to be supported. As shown in FIG. Arrangement of one Z-strip on one panel 3 is advantageous in manufacturing the wall Z-strip panel 3, storage, and construction work of the sleeve wall formwork F5, and the Z-strip 1 into the sleeve wall 5 is advantageous. The height 3h of the wall Z-stripe panel 3 may be set according to the number of arrangement. Preferably, if the height of the sleeve wall 5, that is, the floor height 1h is standard 2700 mm, the height of the wall Z-stripe panel 3 The length 3h is set to 900 mm, and the Z-strand 1 that can guarantee the strength with three or less supporting Z-strands 1 of the sleeve wall 5 is arranged at the center of each wall Z-stripe panel 3 in the height 3h direction. It ’s fine.

Moreover, it is preferable that the Z upper bar 1U, the Z lower bar 1D, and the Z truss bar 1M constituting the Z bar 1 are made of deformed steel bars from the viewpoint of the concrete fixing force.
Further, the penetration of the Z-strip 1 into the heat-insulating layer 3B is maintained in a shape in which the Z-strip 1 does not move back and forth, and it is only necessary to repair the deterioration of the heat-insulating function of the heat-insulating layer 3B at the insertion portion of the Z-strip 1. The insertion hole may be drilled in 3B, the Z-strip 1 may be inserted, and the insertion hole may be filled and repaired with fiber-based heat insulating material and / or in-situ foamed urethane.

Therefore, if the concrete sleeve wall 5 is cantilevered by the wall Z-stripe panel 3 of the present invention, the Z upper end muscle 1U resists the tensile stress caused by the downward bending moment, and the Z lower end reinforcement 1D lowers the bending moment. It is possible to counter the compressive stress caused by Z, and the Z truss structure 1 by the Z truss muscle 1M and the necessary stress center distance ensure that each Z muscle 1 exhibits necessary and sufficient support force.
And since the concrete sleeve wall 5 is thermally interrupted with the heat insulation layer 3B with respect to the concrete outer wall W, the thermal bridge effect | action from the concrete sleeve wall 5 to the concrete outer wall W is outside air-> sleeve wall concrete-> Z line-> Only the route from the concrete outer wall to the living room is provided, and the thermal bridge action from the concrete sleeve wall to the concrete frame can be sufficiently suppressed without covering the concrete sleeve wall 5 with the outer heat insulation.
In addition, since the wall Z-stripe panel 3 can be produced separately as a single unit, it can be prepared as a sleeve wall construction member with a uniform and sufficient sleeve wall supporting force, and can be stored and transported. This makes it possible to construct a uniform and safe concrete sleeve wall.

Further, in the wall Z-stripe panel 3, as shown in FIG. 4, the Z-strip 1 penetrates the insertion hole H1 in the form of a vertically elongated hole formed at the center in the vertical direction of the heat insulating layer 3B. In H1, it is preferable to hold by covering and filling the heat insulating refractory material 3E.
In this case, the heat-insulating refractory material 3E is rich in fire resistance and heat insulation, and can be cut with scissors, for example, Khao wool (Isolite Industry Co., Ltd., trade name), Fi-Block (Sekisui Chemical Co., Ltd., trade name) If the Z streaks 1 are covered and filled with urethane foam and injected and filled with in-situ foamed urethane, the Z streaks 1 can be prevented from moving in the front-rear direction with respect to the heat insulating layer 3B.

And since the outer periphery of the Z line 1 is filled with a heat-insulating refractory material (kao wool) 3E, the Z line 1 can move slightly up and down and left and right with respect to the heat insulating layer 3B. The posture of the projecting portion AP inward and the projecting portion BP into the sleeve wall mold F5 can be easily maintained and fixed to the bar arrangement.
And even if the heat insulation layer 3B burns at the time of the fire in the concrete sleeve wall 5 constructed by the wall Z reinforcement panel 3, the Z reinforcement in the heat insulation layer 3B is protected from the thermal power, and the strength deterioration due to the fire is suppressed. I can do it.
Therefore, the wall Z-stripe panel 3 is easy to manufacture because the Z-strip 1 penetrates into the heat-insulating layer 3B and the heat-insulating function repair work into the insertion hole H1 of the heat-insulating layer 3B. The concrete sleeve wall 5 can be provided.

Moreover, in the wall Z-stripe panel 3, it is preferable that the one side outer surface of the insertion hole H1 is stuck and closed by a seat plate 7 provided with the Z-muscle insertion circular holes H2, H2 ', and H3 above and below. .
In this case, the seat plate 7 may be a rectangular plastic plate having a thickness of 2 to 3 mm and covering the entire insertion hole H1, and each of the insertion circular holes H2, H2 ', H3 has a corresponding reinforcing bar ( It is preferable to use a circular hole slightly larger (standard: 3 mm) than the diameter of the Z upper bar 1U, Z truss bar 1M, and Z lower bar 1D.
5B and 7A, the seat plate 7 is previously attached to one outer surface of the heat insulating layer 3B, and the Z-strip 1 is inserted from the opposite side of the seat plate 7. And what is necessary is just to insert and pass through each insertion circular hole H2, H2 ', H3 of the seat board 7. FIG.

Therefore, in the insertion hole H1 in the form of a long hole, the heat insulating refractory material (kao wool) 3E is filled around the Z-strip 1 and in-situ foamed urethane is injected and filled in the gap between the heat insulating refractory material 3E and the insertion hole H1. In doing so, the seat plate 7 has a stopper function, and clean filling can be easily performed.
In the obtained wall Z-stripe panel, the Z-strip 1 can move up and down and left and right slightly with the seat plate 7 as a fulcrum, and the Z-strip protrusion AP, The BP posture maintenance and fixing work becomes easy, and the urethane foam material on site that closes the gap (standard: 1.5mm) between each Z bar and each insertion hole H2, H2 ', H3 It absorbs the vibration of the Z muscle 1 by acting as a cushion.

Further, in the wall Z-stripe panel, as shown in FIG. 4, the Z-strand 1 has an intermediate inclined portion 1S of the Z truss reinforcing bar 1M inclined at 45 °, and the intermediate inclined portion 1S is formed with the thickness of the heat insulating layer 3B. It is preferable to dispose over the entire area of TB to give the heat insulating layer 3B a rigid structure function.
In this case, as shown in FIG. 4 (B), the Z truss reinforcement 1M is preferably lowered and inclined from the fixing side (BP side) to the sleeve wall 5 to the fixing side (AP side) to the concrete frame.
Then, as shown in FIG. 3, if the sleeve wall 5 is cantilevered by the wall Z-stripe panel 3, tensile stress is applied to the Z upper end muscle 1U and tensile stress is applied to the Z lower end muscle 1D due to downward bending stress acting on the sleeve wall 5. The shear stress generated at the interface neutral axis between the tensile stress and the compressive stress is theoretically 45 ° because the compressive stress acts. Therefore, the Z truss bar 1M inclined at 45 ° counteracts the shear stress and provides a reasonable bearing capacity. The provided wall Z-stripe panel 3 can be manufactured.

  And in order to arrange the intermediate inclined portion 1S of the Z truss bar 1M over the entire area of the thickness TB (standard: 75 mm) of the heat insulating layer 3B, the intermediate inclined portion 1S gives a truss structure over the entire thickness of the heat insulating layer 3B. In addition, the Z-bar insertion portion of the heat insulating layer 3B has a rigid structure, and in terms of mechanics, the heat insulating layer 3B is replaced with a concrete body, that is, the concrete sleeve wall 5 is mechanically divided into a concrete outer wall W and a continuous structure. The amount of bending due to the downward bending moment of the cantilevered concrete sleeve wall 5 is extremely reduced (standard: 0) in combination with the fact that the Z bar 1 itself maintains a sufficient stress center distance L15. 001 mm), and cantilever support of the concrete sleeve wall 5 becomes possible.

In the wall Z-stripe panel 3, as shown in FIG. 4 (B), the Z-stripe 1 is coated with fireproof paint 1A on the portion in the heat insulating layer 3B, and on the projecting portions AP and BP. It is preferable to apply the heat-insulating rust preventive paint 1B.
In this case, over the entire length of the Z-strip 1, a fireproof coating primer (ESK Kaken Co., Ltd., trade name), which is a corrosion-resistant and heat-insulating epoxy resin paint, is applied as heat-insulating rust-preventing paint 1B. Further, the SK fireproof coat top coating material (SKE Chemical Co., Ltd., trade name) may be applied to the layer 3B-corresponding portion as the heat-insulating rust-preventing paint 1B.

  Therefore, as shown in FIGS. 4B and 4C, the wall Z-stripe panel 3 is inserted through the heat-insulating layer 3B, the Z-strand insertion hole H1, and the heat-insulating refractory material 3E and / or Since the heat insulation function was repaired by filling in-situ foamed urethane, the cantilevered reinforced concrete sleeve wall 5 constructed using the wall Z-stripe panel 3 was also used for the Z-stripe 1 during combustion of the heat-insulating layer 3B during a fire. The deterioration of the fire can be suppressed and it becomes a fire-resistant sleeve wall. Moreover, the heat-insulating rust-preventive paint 1B of the fixed portion (protruding portion AP, BP) of the Z-strip 1 in the concrete can suppress the corrosion of the Z-strip 1 and is durable. The Z-strip 1 that is the only thermal bridge route from the sleeve wall 5 to the concrete frame is also reduced in the heat transfer from the surrounding concrete to the Z-strip 1 so that the concrete sleeve wall 5 is made of concrete. Thermal bridge action on the frame CF (concrete outer wall W) The ones that have been further reduced.

In the wall Z-stripe panel 3, as shown in FIG. 4 (A), a vertical slit groove 3G is arranged in the center of the thickness TB on both side surfaces 3L and 3R of the heat insulating layer 3B. It is preferable to leave.
In this case, the slit groove 3G is for inserting the joining plate 3A as shown in FIG. 6A, and the groove width, groove depth, and groove length can be selected and determined according to the application form of the joining plate 3A. good.
Therefore, as shown in FIG. 6A, the wall Z-stripe panel 3 provided with the slit grooves 3G has a matching arrangement of the heat insulating layer 3B and the composite panel heat insulating layer 2B when the sleeve wall mold F5 is constructed. Even if it can carry out easily and correctly by 3A and receives the concrete pressure at the time of concrete pouring, the joining plate 3A of the both sides | surfaces of the heat insulation layer 3B functions suitably as a bearing force.

In the building having the outer wall structure of the present invention, the reinforced concrete sleeve wall 5 is cantilevered only by the Z reinforcement 1 in a form in which the reinforced concrete sleeve wall 5 is thermally shielded from the reinforced concrete frame CF. However, the thermal bridge action from the concrete sleeve wall 5 to the concrete frame CF side occurs in the outside air → concrete of the sleeve wall → Z-strain → concrete frame side concrete → the route in the living room. The thermal bridge effect via the concrete cross-sectional area of the sleeve wall is eliminated as compared with the monolithic continuous form.
Therefore, in the present invention, the thermal bridge action into the concrete frame CF is suppressed without any external heat insulation work on the outer peripheral surface of the reinforced concrete sleeve wall 5, and the concrete sleeve of the conventional example 1 is suppressed. Compared to the case where the entire wall is covered with heat insulation and the case where heat insulation reinforcement is applied to the inside of the concrete case of Conventional Example 2, an outside heat insulation building can be obtained much more economically and easily.

Furthermore, since the reinforced concrete sleeve wall 5 is cantilevered with only the Z-strip 1, the projecting position of the sleeve wall 5 should be a position where the protrusion AP of the Z-strip 1 group can be placed in the concrete frame CF. The reinforced concrete sleeve wall 5 can be thinned, the sleeve wall opening (window) can be opened, the sleeve wall height can be set to a desired height, and the reinforced concrete sleeve wall can be designed freely.
And since the reinforced concrete sleeve wall 5 is not a load-bearing wall like the conventional but a secondary structure, there is no restriction | limiting in the space utilization under a balcony floor slab or a sleeve wall.
Therefore, the outer wall structure of the present invention has a concrete sleeve wall protruding from the concrete outer wall W coated with an outer heat insulation in a form that suppresses the action of the thermal bridge. Therefore, the reinforced concrete building is free from internal condensation and is excellent in terms of hygiene. And it becomes the high quality building which was excellent in the durability by external heat insulation, and was energy-saving.

Further, in the invention of the construction method, the wall Z-stripe panel 3 having the Z-strands 1 for supporting the sleeve walls is provided between the composite panels 2 erected and disposed as a discarded frame outside the outer wall mold FA. If the heat insulation layer 3B is abutted against the composite panel heat insulation layer 2B in parallel connection, the formwork F5 of the concrete sleeve wall 5 can be arranged, and the wall Z-stripe panel 3 is a small factory-produced product, so it is easy to handle. In addition, the wall Z bar panel is arranged and constructed after assembling the concrete outer wall formwork FW, and the Z bar 1 and the wall bars (vertical bar 8A, horizontal bar 8B, width stop bar 8C) Due to the good workability of the placement and fixing of the wall, the placement of the wall Z-stripe panel 3 and the workability of the formwork are good.
Therefore, the reinforced concrete sleeve wall 5 protrudes from the concrete outer wall W as long as the protrusion AP for fixing the concrete frame of the Z bar 1 of the wall Z bar panel 3 is arranged and fixed in the outer wall formwork FW on the concrete frame side. A concrete sleeve wall that can be formed and has a high degree of design freedom and that suppresses the thermal bridge action can be reasonably constructed with good workability, and the outer wall structure of claim 1 of the present application can be suitably implemented.

In the wall Z-stripe panel 3 of the present invention, the Z upper bar 1U and the Z lower bar 1D are integrally fixed with a Z truss bar 1M having an intermediate inclined portion 1S while maintaining a stress center distance L15 in the vertical direction. Since the Z-strands 1 having a strong load supporting force are penetrated and held in the heat insulating layer 3B, the concrete sleeve walls 5 can be safely supported even if the Z-strands 1 are arranged at a large interval. The construction of the sleeve wall 5 based on the design is enabled.
Moreover, since the wall Z-stripe panel 3 is a small single unit and can be prepared by factory production, it can be easily manufactured, stored, and transported as a homogeneous and safe support member. By preparing the panel 3, it is possible to construct a concrete sleeve wall 5 that is safe and homogeneous cantilever support at each construction site.
Therefore, the wall Z-stripe panel 3 of the present invention enables the economical and rational construction of the excellent outer wall structure of claim 1 of the present application, and enables the construction to spread.

[Structure of reinforced concrete sleeve wall (Fig. 1, Fig. 2)]
FIG. 1 is a partially cut perspective view of an outer wall structure including a reinforced concrete sleeve wall 5, and FIG. 2 (A) is a cross-sectional view of FIG.
The concrete frame CF includes a concrete outer wall W as a load bearing wall having a floor height 1h of 2700 mm and a wall thickness TW of 180 mm. The outer surface of the concrete outer wall W has a heat insulating layer 2B having a thickness T3 of 75 mm and a thickness T2. A composite panel 2 that is a layered product of 12 mm exterior base material (magnesium cement board) 2A covers the outer heat insulation, and the reinforced concrete sleeve wall 5 has a wall thickness T5 of 180 mm and a floor height of 1 h (2700 mm). Z-strip 1 group which is a wall, has a depth LB of 1500 mm, is thermally insulated from the concrete outer wall W by the heat insulating layer 3B, and penetrates the heat insulating layer 3B from the concrete sleeve wall 5 to the concrete outer wall W Only cantilevered.

  As shown in FIG. 3, the Z-strip 1 is held in the center of the heat insulating layer 3B having a height 3h (standard: 900 mm) obtained by dividing the floor height 1h (standard: 2700 mm) into three parts. A projection part AP toward the half of the concrete side and a projection part BP toward the other half of the sleeve wall side are provided, and one heat insulating layer 3B and one Z line 1 penetrating through the upper and lower central part 1 1 constitutes a wall Z-stripe panel 3, and the concrete sleeve wall 5 in FIG. 1 connects three wall Z-stripe panels 3 up and down, as shown in FIG. The Z sleeves support the concrete sleeve wall 5 with a floor height 1h of 2700 mm.

[Z-strip (Fig. 4)]
FIG. 4C is a front view of the Z line 1 and FIG. 4D is an enlarged view of a main part of the Z line.
As shown in FIG. 4 (C), the Z bar 1 includes a Z upper end bar 1U for tensile stress load and a Z lower bar bar 1D for load of compressive stress on a concrete sleeve wall 5, a horizontal upper side 1U ′, A Z truss bar 1M having an inclined portion 1S and a horizontal lower side portion 1D ′ is integrally fixed by welding while maintaining a stress center distance L15 in the vertical direction.
The Z-bar 1 needs to be strong enough to support the reinforced concrete sleeve wall 5 in a cantilevered form, and the diameter and length of each steel bar of the Z-bar 1 are determined by adding wind pressure to the fixed load of the sleeve wall itself. What is necessary is just to determine based on the general formula of the bending moment M: M = at × ft × j.
Here, at is the cross-sectional area of the tensile reinforcement, ft is the allowable tensile stress of the reinforcing bar, and j is the stress center distance of the bending material.

As is apparent from the above general formula, even if reinforced steel bars having the same diameter are employed, maintaining the stress center distance of the steel bars is extremely important for improving the supporting force. Therefore, in the present invention, FIG. As described above, the stress center distance (distance between the center axes of the Z upper end 1U and the Z lower end 1D) L15 is secured by the Z truss 1M.
The stress center distance L15 is a combination of the condition that the intermediate inclined portion 1S of the Z truss bar 1M is inclined by 45 °, the condition that the intermediate inclined portion 1S extends over the entire width of the heat insulating layer 3B, and the thickness TB of the heat insulating layer 3B. It can be determined under the condition that the heat insulation layer thickness T3 (75 mm) of the panel 2 is the same, and if the distance L14 between the Z upper bar 1U and the Z lower bar 1D is 75 mm, the thickness T3 in the heat insulation layer 3B is 75 mm. In addition, the intermediate inclined portion 1S of the Z truss bar inclined by 45 ° can be arranged in the entire region of the width T3.

  Further, the diameter and length of each reinforcing bar constituting the Z bar 1 may be determined from the performance and cost for the concrete sleeve wall 5 to be applied. For example, the depth LB in FIG. A Z-strip line in which a Z-upper end muscle 1U and a Z-bottom end bar 1D of the same diameter are integrated with a 180-mm sleeve wall 5 at an interval of L14 of 75 mm and an intermediate inclined portion 1S of a Z-truss bar 1M with a diameter of 16 mm integrated into a 45-degree slope. 1 is arranged at a distance of 900 mm (3 h), and the Z upper end muscle is used when the reinforcing bar diameter is 25 mm as compared with the case where the reinforcing bar diameter is 22 mm as the Z upper end muscle 1 U and the Z lower end muscle 1 D. Although it can be shortened by 50 mm for 1U and 30 mm for the Z lower bar 1D, the weight increases by 1.5 kg and the material cost increases.

Of course, the 25 mm steel bar has a 61% margin in terms of strength, which is stronger than the 22 mm steel bar with a margin of 49%. The displacement of the base end 5b of the concrete sleeve wall 5 is the same as that of the 25 mm steel bar. Both the 22mm steel bars are 0.001mm, but the displacement of the sleeve wall tip 5t is 0.376mm for the 25mm diameter steel bars and 0.494mm for the 22mm diameter steel bars, and the displacement is 25mm diameter. The steel bar is 1/3258 and the steel bar with a diameter of 22 mm is 1/2687. If a steel bar with a diameter of 25 mm is used, the strength and displacement performance are improved over the use of a steel bar with a diameter of 22 mm.
In addition, the effect of the wind pressure on the sleeve wall 5 is the calculation at a wind force of 34 m / s, but if the safety factor is taken into account and calculated at 1.5 times the wind force, the horizontal displacement of the sleeve wall 5 is In the case of a steel bar having a diameter of 25 mm, the sleeve wall base end 5b is 0.1 mm (0.16 mm for a diameter of 22 mm), and the sleeve wall tip 5t is 1.88 mm (3.01 mm for a diameter of 22 mm) with a displacement of 1/750 ( When the diameter is 22 mm, it becomes 1/468).

The following is a comparison of trial calculations of a case where the steel bars used have a diameter of 19 mm, a diameter of 22 mm, and a diameter of 25 mm and are applied to the sleeve wall 5 of FIG.

Diameter 19mm Diameter 22mm Diameter 25mm
Overall length (mm) of Z upper end muscle 1U 1300 1200 1150
Total length (mm) of Z lower end muscle 1D 820 760 730
Weight (kg) 4.8 6.0 7.5
Application price (yen / location) 305 381 477
Strength margin 31% 49% 61%
Number of Z-strands (book) 2.06 1.52 1.17
Displacement of sleeve wall tip (mm) 0.668 0.494 0.376
Displacement of sleeve wall base end (mm) 0.001 0.001 0.001
Displacement 1/1988 1/2687 1/3258
Horizontal displacement of sleeve wall tip due to wind pressure (mm) 5.45 3.01 1.88
Horizontal displacement of sleeve wall base due to wind pressure (mm) 0.29 0.16 0.1
Displacement 1/258 1/468 1/750

In addition, all the Z truss bars 1M employ the same deformed steel bar and the same form.

  Accordingly, the reinforced concrete sleeve wall 5 of the embodiment of FIG. 1 of the present invention has a depth LB of 1500 mm, a thickness T5 of 180 mm, and a height of 1h (2700 mm). As shown in FIG. 4C, the Z upper end bar 1U is a deformed steel bar having a length L10 of 1200 mm and a diameter of 22 mm as the lower Z bar bar. Is a deformed steel bar having a length L12 of 760 mm and a diameter of 22 mm. As the Z truss bar 1M, the intermediate inclined portion 1S is inclined by 45 ° and is inclined over the thickness TB (75 mm) of the heat insulating layer 3B. Part 1U 'and horizontal lower side 1D' are each 80mm, Z-shaped height L14 is bent and formed with a deformed steel bar with a diameter of 16mm, at the center of Z upper bar 1U and Z lower bar 1D, The horizontal upper side 1U 'of the Z truss 1M The horizontal lower side portion 1D ′ is in contact with the upper surface of the Z lower end bar, and is integrated with the fixing portions ZU and ZD by welding on both sides, and then the outer peripheral total length of the Z upper end bar 1U, Z lower end bar 1D and Z truss bar 1M In addition, an epoxy resin paint excellent in corrosion resistance, adhesion, and heat insulation (fireproof coating primer: SK Kaken Co., Ltd., trade name) is applied twice as a rust preventive paint 1B and positioned in the heat insulating layer 3B. Further, a Z-strand 1 coated with a fire-resistant paint 1A (SK fire-resistant coat: SK Kaken Co., Ltd., trade name) is prepared for the part.

[Wall Z panel 3 (Fig. 4)]
4A is an overall perspective view of the wall Z-stripe panel 3, and FIG. 4B is an overall perspective view of a panel-shaped heat insulating layer 3B that constitutes the main body of the wall Z-stripe panel.
The heat insulating layer 3B is a foamed plastic type heat insulating plate of JISA9511, has a thickness TB of 75 mm, is made of the same material and has the same thickness as the heat insulating layer 2B of the composite panel 2 used for covering the outer wall W, and the width WB is The width is 200 mm, which is 20 mm wider than the thickness T5 (1800 mm) of the concrete sleeve wall 5 to be applied.
The height 3h is 900 mm, and is 1/3 of the height of the concrete sleeve 5 having the same height as the floor height 1h (2700 mm).
In addition, a vertical long hole having a width of 40 mm and a vertical length of 135 mm is formed in the central portion of the heat insulating layer 3B as an insertion hole H1 for the Z-strip 1, and the widths of the side surfaces 3L and 3R are in the center. In the center, a slit groove 3G having a width X3 of about 3.5 mm and a depth Y3 of 45 mm is provided over the entire length.

  7B, the width 7W is larger than the width 40 mm of the insertion hole H1 (standard: 50 mm), and the height 7h is larger than the length 135 mm of the insertion hole H1 (standard: 150 mm). In the center upper part of the 2 to 3 mm thick plastic plate prepared in 2), the Z upper end 1U circular hole H2 with a diameter of 22 mm and the horizontal upper side 1U 'of the 16 mm diameter Z truss 1M with the lower part are inserted. A circular hole H2 ′ is formed in a continuous form, and a Z lower end 1D insertion circular hole H3 having a diameter of 22 mm is formed at the center lower portion of each of the circular holes H2, H2 ′, and H3 from the diameters of the insertion reinforcing bars 1U, 1M, and 1D. As shown in FIG. 4A, the seat plate 7 that is slightly perforated (standard: 3 mm) is stuck and fixed to the heat insulating layer 3B so as to close one side surface of the insertion hole H1 of the heat insulating layer 3B.

Next, the Z line 1 penetrates through the heat insulating layer 3B from the opening side of the insertion hole H1 through the insertion circular holes H2, H2 ', H3 of the seat plate 7, and the Z line 1 protrudes on both sides from the protrusions AP, With the BP protruding in the same length and the intermediate inclined part 1S of the Z truss bar 1M within the width TB of the heat insulation layer 3B, the kao wool (Isolite Industry Co., Ltd., trade name) is inserted into the Z bar in the insertion hole H1. 1 is filled around, and in-situ foamed urethane is injected and filled into the gap between the kao wool and the insertion hole H1.
In this case, the seat plate 7 has a stopper function when filling with the kao wool and the in-situ foamed urethane, and the insertion holes H2, H2 ', H3 of the seat plate 7 and the inserted reinforcing bars 1U, 1M, 1D The gap is filled with in-situ foamed urethane, and a wall Z-stripe panel 3 is obtained in which the Z-strip 1 is penetrated and held by the heat insulating layer 3B.

[Composite panel 2 (FIGS. 1 and 5)]
As shown in FIG. 1, the composite panel 2 is for covering a concrete outer wall W with heat insulation, and has an exterior base material 2A made of a magnesium cement plate having a thickness T2 of 12 mm and a light weight (10 kg / m ² ); A panel with a thickness T1 of 87 mm and a heat-insulating layer 2B having a thickness T2 of 75 mm, which is a foamed plastic heat insulating material. The moisture resistance of the exterior base material 2A is smaller than the moisture resistance of the heat-insulating layer 2B. When the concrete outer wall W is covered with the composite panel 2 by heat insulation, the moisture permeation resistance decreases in the order of the concrete outer wall W → the heat insulating layer 2B → the exterior base material, and water vapor is supplied to the concrete. This is a panel that can be discharged outward from the wall W.

[Construction of outer wall W and sleeve wall 5 (FIGS. 5 and 6)]
FIG. 5A is a cross-sectional view of the formwork state of the outer wall W and the sleeve wall 5 in which the sleeve wall 5 protrudes from the concrete outer wall W at the protruding corner shown in FIG. FIG. 6A is an enlarged explanatory view of a main part after the concrete is placed on the mold shown in FIG. 5A and the mold is disassembled, and FIG. 6B is a view as viewed from an arrow B in FIG.
As the mold frame, first, the outer wall mold FW is used as the outer mold frame F0 using the composite panel 2 as the outer frame with the exterior base material 2A as the outer surface as shown in FIG. Together with F1, the outer wall formwork FW is erected.
In this case, in the contact surfaces 2L and 2R of the composite panels 2 on both sides with the heat insulation layer 3B of the wall Z-stripe panel 3, as shown in FIG. 6 (A), the heat insulation layer 2B is inserted 10 mm in advance, and The slit grooves 2G and 2G ′ are arranged on the contact surface.
Next, the wall Z streak panel 3 (height 900 mm) is erected in the connected form of the heat insulating layer 3B sequentially from the bottom to the top.

In this case, the joining plate 3A is fitted over the slit groove 3G on the side surface of the heat insulating layer 3B and the slit grooves 2G, 2G ′ of the composite panel 2 on both sides, and the heat insulating layer 3B of the wall Z-stripe panel 3 and the composite A state of alignment with the heat insulating layer 2B of the panel 2 is ensured, and as shown in FIG. 6A, 10 mm on both sides of the heat insulating layer 3B having a width TB of 200 mm is applied to the exterior base material 2A of the composite panel 2 To place.
In addition, at the upper and lower joints of each wall Z-stripe panel 3, as shown in FIGS. 6A and 6B, a conventional separator 10H ′, KP con 11A and anchor 11B are used, and the heat insulating layer 3B. Is held by the KP con 11A.
The outer wall formwork FW and the sleeve wall formwork F5 are formed by a conventional formwork construction means with a vertical end thick 10B, a horizontal end thick 10C, a separator 10H, a KP con 10K, a rib washer 10L, and the like.
In addition, the bar arrangement by the vertical bars 8A, the horizontal bars 8B, and the width stop bars 8C in the concrete sleeve wall mold F5 is a complete type in the sleeve wall mold F5, and the sleeve wall mold F5 and the outer wall mold FW Communicates only the Z-strip 1 of the wall Z-strip panel.

In this case, the separator 10H ′, the KP con 11A, and the anchor 11B that secure the upper and lower connecting portions of the wall Z-stripe panel 3 have no support for the sleeve wall 5, and the thermal bridge is blocked by each KP con 11A. Has been.
Then, concrete is placed in the outer wall formwork FW, and then concrete is placed in the sleeve wall formwork F5.
In this case, the heat insulating layer 3B of the wall Z-stripe panel 3 receives the concrete flow pressure from the outer wall formwork FW side, but both ends 3L and 3R of the heat insulating layer 3B extend over the entire length, and the exterior base material of the composite panel 2 2A is covered by 10 mm, the joining plate 3A is fitted over the heat insulating layer 3B and the heat insulating layer 2B, and the upper and lower connecting portions of the three heat insulating layers 3B are sandwiched by the KP con 11A. By being held in the sleeve wall formwork F5, the heat insulating layer 3B, that is, the wall Z-stripe panel 3 is not displaced and is struck while maintaining an appropriate position between the concrete outer wall W and the concrete sleeve wall 5. Integrate with concrete.

Therefore, when the molds FA and F5 are disassembled, the concrete wall W is covered with the moisture-permeable outer heat insulation by the composite panel 2, and the reinforced concrete sleeve walls 5 are arranged in a self-contained form. Each of the concrete sleeve walls 5 on each floor is cantilevered on the concrete outer wall W by a group of Z bars.
Each reinforced concrete sleeve wall 5 is thermally insulated from the concrete outer wall W by the heat insulating layer 3B having the same material and thickness as the heat insulating layer 2B of the composite panel. The thermal bridge action to the side, that is, the concrete frame CF side, is only the outside air → the concrete of the sleeve wall → the Z bar → the concrete of the outer wall → the route in the living room.

[Others]
As the Z-stripe 1 of the wall Z-stripe panel 3, as shown in FIG. 2B, if a concrete AP-adhering projection AP is used as a bent projection, the concrete wall of the Z-muscle projection AP is used. Integrated fixing within the wall width TW (standard: 180 mm) of W is possible, the projecting position of the concrete sleeve wall 5 is free, and the degree of freedom in designing the concrete sleeve wall 5 is improved.
In this case, if the fixing plate 1C is fixed to the tip of the protrusion AP, the fixing force of the bent protrusion increases, and the bending protrusion AP can be shortened.

In the embodiment, the wall Z-stripe panel 3 is divided into three parts with respect to the sleeve wall having a floor height of 1 h. However, the required plurality of Z-strands 1 are provided on the heat insulating layer 3B that is equal to the height of the sleeve wall 5. Even if they are arranged, the object of the present invention can be achieved.
In this case, since the heat insulating layer 3B is vertically long, if a spacer piece for holding the front-rear interval is arranged at an appropriate position of the upper and lower lateral stripes when arranging the outer wall mold FW and the sleeve wall mold F5, In combination with securing the position of each Z-strip 1 with the bar arrangement, it is possible to secure the position of the long wall Z-strip panel 3.

In the embodiment, the Z muscle 1 in which the Z upper end muscle 1U and the Z lower end muscle 1D are assembled into the truss structure with the Z truss muscle 1M is used as the Z wall 1 for supporting the sleeve wall. You may arrange | position the required number of Z bars of the shape of one steel bar provided with a required diameter and required length.
In this case, a large number of Z bars of a single bar (standard: three times the number of truss structure Z bars 1) will be arranged, and the arrangement type assembly work will be complicated, but the production of a wall Z bar panel will be difficult. Simple and inexpensive.

Moreover, in the Example, although the moisture-permeable composite panel 2 was employ | adopted as an outer heat insulation panel for outer wall coating, the vertical direction ventilation layer of the patent 3526562 (Unexamined-Japanese-Patent No. 2003-35036) which the present applicant developed was used. You may apply the heat insulation composite panel which laminated | stacked the provided cement board and the heat insulation layer to the covering of the concrete outer wall W. FIG.
In this case, since the ventilation layer itself of the heat-insulating composite panel has a function of suppressing internal dew condensation, the degree of freedom in selecting the cover material for the cement board (exterior base material) on the outer surface of the composite panel is improved.

It is a partially cutaway perspective view of the outer wall structure of the present invention. It is a cross-sectional view which shows the relationship between the sleeve wall of this invention, and an outer wall, Comprising: (A) is an Example figure, (B) is a modification figure. The arrangement | positioning form of the wall Z line panel of this invention is shown, and it is the CC sectional view taken on the line of FIG. 2 (A). It is explanatory drawing of the wall Z line | wire panel of this invention, Comprising: (A) is a whole perspective view, (B) is a perspective view of a heat insulation layer, (C) is a front view of Z line | wire, (D) is It is the elements on larger scale of (D). It is explanatory drawing of the formwork of this invention, Comprising: (A) is a cross-sectional view, (B) is the arrow B partial view of (A), (C) is the arrow C partial view of (A). is there. It is an arrangement state explanatory view of a wall Z line panel, (A) is an important section transverse section and (B) is an important section longitudinal section. It is explanatory drawing of a wall Z line | wire panel, Comprising: (A) is a principal part longitudinal cross-sectional view, (B) is a perspective view of a seat board. It is a prior art example, (A) is a cross-sectional view of the prior art example 1, (B) is a cross-sectional view of the prior art example 2, (C) is a basic structure explanatory diagram common to the prior art examples 1 and 2 It is.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Z line | wire 1A Fireproof paint 1B Rust prevention paint 1C Fixing board 1D Z lower end line 1D 'Horizontal lower side part 1h Floor height 1M Z truss line 1S Middle inclined part 1U Z upper end line 1U' Horizontal upper side part 2 Composite panel 2A Exterior base material (magnesium Cement board)
2B, 3B heat insulation layer (foamed plastic heat insulation layer)
2G, 2G ', 3G Slit groove 3 Wall Z-stripe panel 3A Joint plate 3E Insulation fireproof material (fireproof coating material, kao wool)
3h Panel height 5 Reinforced concrete sleeve wall (concrete sleeve wall, sleeve wall)
5b Sleeve wall base end 5t Sleeve wall tip 7 Seat plate 8 Reinforcement 8A Vertical bar 8B Horizontal bar 8C Width stop bar 10A, 10A 'Template 10B Vertical end 10C Horizontal end 10H, 10H' Separator 10K, 11A KP con 10K ' P-Con 10L Rib Washer 11B Anchor A Living Department
AP, BP Protrusion (Z muscle protrusion)
B Balcony CF Concrete frame F0 Outer wall outer formwork (outer formwork)
F1 outer wall inner formwork (inner formwork)
F5 Sleeve wall formwork FW Outer wall formwork H1 Insertion hole H2, H2 ', H3 Insertion circular hole J3 Connection (upper and lower connection)
L15 Stress center distance P Parapet SA Residence floor slab SB Balcony floor slab Sf, Sf 'Concrete floor surface W Concrete outer wall (outer wall, concrete wall)
Wf Outer wall surface ZD, ZU fixing part

Claims (20)

  It is an outer wall structure in which a reinforced concrete sleeve wall (5) is projected in a cantilevered form from a reinforced concrete outer wall (W), and the outer wall (W) has a heat insulating layer (2B) and an exterior base material (2A). The sleeve wall (5) is thermally insulated from the base wall (5b) by the outer wall surface (Wf) and the heat insulating layer (3B), and is insulated. One half of the protrusion (AP) of the Z-strip (1) passing through the insertion hole (H1) of the layer (3B) is in the concrete frame (CF), and the other half of the protrusion (BP) is the sleeve wall (5). The outer wall structure with a sleeve wall that is integrally fixed by concrete placement and is cantilevered only by the Z-strip (1).   The heat insulating layer (3B) that thermally shields the sleeve wall (5) has a thickness (TB) substantially equal to the thickness (TB) of the heat insulating layer (2B) of the composite panel (2), and The outer wall structure according to claim 1, wherein the heat insulating layer (3B) and the heat insulating layer (2B) are in contact with each other.   The Z line (1) is a Z truss line consisting of a Z upper end line (1U) and a Z lower end line (1D), consisting of a horizontal upper side part (1U '), an intermediate inclined part (1S) and a horizontal lower side part (1D'). 3. The outer wall structure according to claim 1, wherein the outer wall structure is integrally fixed while maintaining a stress center distance (L15) in the vertical direction.   The heat insulating layer (3B) that thermally shields the sleeve wall (5) has a width (WB) slightly larger than the wall thickness (T5) of the sleeve wall (5), and is placed at appropriate positions in the center of the width (WB). The outer wall structure according to claim 1, 2, or 3, wherein the Z line (1) is held through the insertion holes (H <b> 1) in the form of longitudinally elongated holes arranged at intervals.   The intermediate inclined portion (1S) of the Z-strip (1) is inclinedly arranged over the entire thickness (TB) in the heat insulating layer (3B), thereby imparting a rigid structure function to the heat insulating layer (3B). The outer wall structure according to claim 3 or 4.   The Z line (1) is coated with a rust-preventing paint (1A) at the protrusions (AP, BP), a fire-resistant paint (1A) is applied within the insertion hole (H1) of the heat insulating layer (3B), and The outer wall structure according to any one of claims 1 to 5, wherein the outer wall structure is filled with a heat insulating refractory material (3E).   7. The outer wall structure according to claim 1, wherein the Z line (1) is fixed in the concrete frame (CF) by bending a protrusion (AP) for fixing in the concrete frame (CF). .   The concrete outer wall (W) is layered with a foamed plastic heat insulating layer (2B) having a moisture permeability resistance smaller than that of the concrete outer wall (W) and an exterior base material (2A) having a moisture permeability resistance smaller than that of the heat insulation layer (2B). The outer wall structure according to any one of claims 1 to 7, which is covered with an integrated composite panel (2).   A composite panel (2) for moisture-permeable outer heat insulation in which a magnesium cement plate (2A) and a foamed plastic heat insulating layer (2B) are layered, and an outer wall outer formwork (F0) with the magnesium cement plate (2A) as an outer surface. The outer wall formwork (FW) is constructed together with the conventional outer wall inner formwork (F1), and the sleeve wall (5) has the same thickness as the heat insulation layer (2B) of the composite panel (2). A plurality of wall Z-stripe panels (3) each having a Z-strand (1) penetrating and holding in the heat-insulating layer (3B) are sequentially joined from the bottom to the top, and the heat-insulating layers (3B) are mutually abutted up and down. The heat insulation layer (3B) of the Z-stripe panel (3) is erected continuously up and down continuously with the heat insulation layer (2B) of the side composite panel (2), and both sides of the wall Z-stripe panel (3) Conventional wall molds (F5 ', F5 ") are erected and sleeve wall molds (F5) are used as outer wall molds (FW). Continuing construction, the reinforcement in the sleeve wall formwork (F5) is built in a self-contained form, and then concrete is placed on the outer wall formwork (FW) and the sleeve wall formwork (F5). One half of the protrusion (AP) of the Z line (1) in the frame (F5) is integrally fixed in the concrete outer wall (W), and the other half of the protrusion (BP) is integrally fixed in the sleeve wall (5). A method of constructing an outer wall with a cantilevered sleeve wall.   The wall Z-stripe panel (3) has a panel height (3h) that is equally divided into the floor height (1h) dimension, and the Z-stripe (1) is arranged at the center in the vertical direction of the wall Z-stripe panel (3). The construction method according to claim 9.   The abutting connection between the heat insulation layer (3B) of the wall Z-stripe panel (3) and the heat insulation layer (2B) of the composite panel (2) is made by the slit groove (3G) of the heat insulation layer (3B) and the heat insulation layer (2B). The construction method according to claim 9 or 10, wherein the joining plate (3A) is fitted over the slit groove (2G).   The vertical connection part (J3) of the wall Z-stripe panel (3) uses a separator (10H '), a KP con (11A), and an anchor (11B) as a heat insulating layer (3B) in the sleeve wall formwork (F5). The construction method according to claim 9, 10, or 11, wherein the method is sandwiched and held.   The width (WB) of the heat insulation layer (3B) of the wall Z-stripe panel (3) is set to project slightly to both sides from the sleeve wall thickness (T5), and both side surfaces (3L, 3R) of the heat insulation layer (3B) are composite panels. The construction method according to any one of claims 9 to 12, wherein the abutting surface (2L, 2R) of the side end of the heat insulating layer (2B) of (2) is abutted against and abutted.   The vertical reinforcement (8A), lateral reinforcement (8B), and width stop reinforcement (8C) of the sleeve wall (5) of each floor shall be completed within each sleeve wall formwork (F5). The construction method according to any one of claims 9 to 13, wherein only the Z-strip (1) group of 3) is formed to penetrate from the sleeve wall mold (F5) into the outer wall mold (FW).   A wall Z-stripe panel (3) for construction of a cantilevered sleeve wall (5) in which a Z-strip (1) is penetrated and held in a foamed plastic heat-insulating layer (3B), and the heat-insulating layer (3B) has a thickness (TB) is the same thickness as the heat insulation layer (2B) of the composite panel (2) that covers the concrete wall (W) with heat insulation, and the wall thickness (T5) of the sleeve wall (5) formed by the width (WB) Also, the Z line (1) has a Z upper end line (1U) and a Z lower end line (1D), a horizontal upper side part (1U '), and an intermediate inclined part (1S). And a Z truss bar (1M) composed of a horizontal lower side (1D '), which is integrally fixed while maintaining a stress center distance (L15) up and down, and a half protrusion (AP) of the Z bar (1) ) Is a fixed part in the concrete frame (CF), and the other half projecting part (BP) is a fixed part in the concrete sleeve wall (5). There are, of reinforced concrete wing walls (5), the concrete skeleton (CF), the wall Z muscle panels for integrating construction under the thermal bridge suppressed.   The Z-strip (1) passes through the insertion hole (H1) in the form of a vertically elongated hole formed in the center in the vertical direction of the heat insulation layer (3B), and in the insertion hole (H1), the heat insulating refractory material (3E The wall Z-stripe panel of claim 15 held with a covering fill of   The wall Z muscle panel according to claim 16, wherein one side outer surface of the insertion hole (H1) is stuck and closed by a seat plate (7) provided with Z hole insertion circular holes (H2, H2 ', H3) on the upper and lower sides. .   The Z line (1) has a 45 ° inclination of the intermediate inclined part (1S) of the Z truss line (1M), and the intermediate inclined part (1S) extends over the entire thickness (TB) of the heat insulating layer (3B). The wall Z-stripe panel according to claim 15, 16 or 17, wherein the wall-insulating layer (3B) is provided with a rigid structural function.   The Z-streak (1) is coated with a fireproof paint (1A) on a portion in the heat insulating layer (3B) and a heat insulating rust preventive paint (1B) on a portion of the protrusions (AP, BP). The wall Z muscle panel according to any one of 15 to 18.   The wall Z according to any one of claims 15 to 19, wherein a vertical slit groove (3G) is arranged at the center of the thickness (TB) on both side surfaces (3L, 3R) of the heat insulating layer (3B). Muscle panel.

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