JP4375806B2 - Non-combustible thermal insulation block for supporting concrete structures protruding from the concrete outer wall in a cantilevered manner. - Google Patents

Description

  The present invention provides a concrete structure that protrudes and attaches to a reinforced concrete external heat insulating building in a horizontal form such as a balcony, a fence, and an outer corridor, and a vertical structure such as a balcony sleeve wall, a pouch sleeve wall, and a decorative wall that protrudes from the outer wall. Support connecting bars (hereinafter referred to as Z bars) for supporting concrete structures, etc. (hereinafter referred to as projecting structures) to be supported in a cantilevered form from the outer wall of the concrete frame in a cantilevered manner. It is related to the non-combustible support block provided with, and belongs to the technical field of architecture.

  Reinforced concrete exterior thermal insulation buildings cover the outside of the concrete frame with a heat insulating material, so that the thermal stress on the concrete frame due to solar radiation is reduced, and cracking of the concrete frame can be suppressed, and the concrete frame is in contact with the air. Therefore, the neutralization of concrete can be suppressed, the corrosion of reinforcing steel bars can be suppressed, the durability of the building can be improved, the temperature environment in the building can be maintained, the internal condensation can be reduced, and the mold In recent years, it has been evaluated as an energy-saving high-performance building because it can suppress the generation of ticks and maintain an excellent living environment in terms of health.

  However, from the outer wall of the building, the protruding structure of reinforced concrete floor slabs such as balconies and outer corridors, and reinforced concrete sleeve walls placed on the balconies and outer corridors to prevent the spread of fire and protect privacy Protruding structures tend to be thermal bridges to reinforced concrete frames, and in the case of external thermal insulation concrete buildings, the suppression of thermal bridges to reinforced concrete protruding structures such as reinforced concrete balcony floor slabs and reinforced concrete sleeve walls. As means for solving this problem, the conventional example 1 shown in FIGS. 8A and 8B, the conventional example 2 shown in FIGS. 8C and 8D, and FIG. There is a technique of Conventional Example 3 shown in FIG. 9 and Conventional Example 4 shown in FIG.

FIG. 8 is a thermal bridge suppression means from a balcony floor slab (horizontal protruding structure) and a sleeve wall (vertical protruding structure), which is listed in Non-Patent Document 1, and FIG. 8B is a longitudinal sectional view of Conventional Example 1, FIG. 8C is a transverse sectional view of Conventional Example 2, and FIG. 8D is a longitudinal cross section of Conventional Example 2. FIG. FIG.
That is, in the conventional example 1 shown in FIGS. 8A and 8B, the entire outer periphery of the reinforced concrete balcony floor slab projecting horizontally from the concrete building and the reinforced concrete sleeve wall projecting vertically is the same as the concrete outer wall. In this case, the composite panel for heat insulation coating and the heat insulating material are used.

  8 (C) and 8 (D), the concrete outer wall is covered with a composite panel for heat insulation, but the protruding structure of the balcony floor slab and the sleeve wall protruding from the concrete outer wall is outside. Without heat insulation coating, a heat insulating material is stuck to a part that receives a thermal bridge action from the protruding structure inside the concrete frame, that is, inside the outer wall, thereby reinforcing the heat insulating function from the inner surface of the building.

Further, Conventional Example 3 shown in FIG. 9 is a thermal bridge suppressing means for a balcony floor slab (horizontal projecting structure), which is cited as a conventional example in Patent Document 1, and (A) is a longitudinal sectional view of a balcony. FIG. 4B is a front view of the reinforcing bar unit, and FIG.
That is, in Conventional Example 3, as shown in FIGS. 9B and 9C, a large number of long connected reinforcing bars are arranged side by side in a skewered form on the upper part of the heat insulating material, and each long connected reinforcing bar is arranged below the heat insulating material. Compressive reinforcing bars are placed between them, the bearing plates at both ends of each compressing reinforcing bar protrude from the heat insulating material, and each lattice bar is placed in the vicinity of the compressing reinforcing bar, and both ends of the lattice bars are heat insulating materials. A rebar unit for reducing the thermal bridge is formed by extending in parallel between the upper long connecting rebars, and the rebar units are arranged in a spanning manner on the balcony form and the housing frame as shown in FIG. 9A. Then, concrete is placed and the concrete balcony is supported in a cantilevered support form by the thermal bridge reduction unit.

  In addition, Conventional Example 4 shown in FIG. 10 is an invention that is the subject of Patent Document 1, and is a thermal bridge suppression means for a balcony floor slab (horizontal protruding structure). The reinforcing bar unit of Conventional Example 3 is for a dwelling housing. In the placement in the formwork, the problem is that the reinforcing bars placed on the side of the dwelling unit are in the way and the connecting reinforcing bars cannot be placed. As shown in FIG. The cutout groove group and the lower cutout groove group are arranged, and as shown in FIG. 10 (B), the heat insulating material is arranged at the base end of the balcony formwork, and the heat insulating material through the upper cutout groove group, The connecting reinforcing bar group is placed in a manner extending from the balcony mold to the housing frame, and a cylindrical reinforcing bar mounting jig group having bearing plates at both ends is inserted into the lower notch groove of the heat insulating material, and the reinforcing bar Connected reinforcing bar group is inserted into the mounting jig group from between the bar arrangements placed in the formwork for the housing frame. Screws to secure the reinforcing bar mounting jig Te, as shown in FIG. 10 (A), is to set concrete balcony mold frame and the dwelling unit building frame-body mold.

Published by Hokkaido Outside Insulation Council, “2003 edition, RC exterior insulation method handbook” pages 40-47: “Calculation of heat loss coefficient” JP 2005-188036 A

  As shown in FIGS. 8 (A) and 8 (B), the reinforced concrete horizontal protruding structure (balcony floor slab) and the vertical protruding structure (sleeve wall) of Conventional Example 1 are arranged at the top and bottom of the balcony floor slab. Balcony floor slab (horizontal projecting structure) and sleeve wall for covering both sides and tip surfaces, both sides and tip surfaces of sleeve walls, ie, all outer peripheral surfaces of balcony floor slabs and sleeve walls with thermal insulation (composite panel) The (vertical projecting structure) has the same outer heat insulation structure as the outer wall, but has a defect that the thickness of the balcony floor slab and the sleeve wall is increased by the covering insulation, and the balcony floor slab and sleeve of the composite panel. Adhesion corresponding to the form of the wall, especially the adhesion to the tip surface and the insulation material adhesion to the upper surface of the balcony floor slab, is poor in workability, and the application of the composite panel and the insulation material is expensive. .

Further, in the construction means for the horizontally projecting structure (balcony floor slab) and the vertically projecting structure (sleeve wall) of reinforced concrete in Conventional Example 2, as shown in FIGS. 8 (C) and 8 (D), the balcony floor slab Since the sleeve wall and the sleeve wall are not covered with the composite panel, the problem of increase in thickness does not occur as in the conventional example 1, but the concrete of the balcony floor slab and the sleeve wall is integrally continuous with the concrete frame (concrete outer wall). As a result, thermal bridge action occurs.
Therefore, in order to reduce the thermal bridge action from protruding structures (balconies, sleeve walls), heat insulation reinforcement material will be stuck to the inner surface of the concrete frame, but heat insulation reinforcement inside the concrete frame reduces heat bridges. The effect can be expected only about 75%, and the effect of reducing the thermal bridge is lower than that of Conventional Example 1.
Moreover, in the conventional example 2, as shown in FIGS. 8C and 8D, a step due to the heat insulating reinforcing material is generated on the inner surface of the concrete frame, and the step of the heat insulating reinforcing material is eliminated when finishing the interior. Therefore, it is necessary to construct a base for attaching the interior material, which increases the number of constructions on the interior finish surface and the cost.

Moreover, in the construction means of the reinforced concrete horizontal protrusion structure (balcony floor slab) of the conventional example 3, since many connecting rebars and compression rebars are arranged in parallel in the heat insulating material itself, it is for heat bridge reduction. Since the reinforcing bar unit itself has a bulky and complicated shape, it is difficult to efficiently transport and store the reinforcing bar unit.
In addition, horizontal protruding structures such as balconies have various sizes and shapes, and preparation of reinforcing bar units corresponding to all of them is complicated and difficult.
And at the time of formwork, since the connecting reinforcing bars are closely arranged in parallel, the reinforcing bars placed on the side of the housing unit are in the way, and it is difficult to arrange the thermal bridge reducing reinforcing bar unit and fix the reinforcing bars. In addition, the assembly of the bar arrangements is complicated and difficult in the balcony mold and the housing frame.
In addition, after constructing a concrete frame by placing a thermal bridge reducing rebar unit on the boundary surface between the balcony floor slab and the dwelling unit frame, it becomes an external heat insulation building with a post-paste construction method in which heat insulating material is adhered to the concrete outer wall. The workability is poor and there is no versatility.
Moreover, the thermal bridge reduction method of Conventional Example 3 cannot be applied to the construction of a vertically projecting structure such as a sleeve wall.

Moreover, in the construction means of the reinforced concrete horizontal projecting structure (balcony floor slab) of Conventional Example 4, a connecting reinforcing bar group for connecting the balcony floor slab and the housing for the dwelling unit to the upper notch groove group of the heat insulating material. However, since the individual upper connecting rebars resist the tensile stress caused by the gravity of the balcony, multiple high-density parallel arrangements are required, and the required number of upper connecting reinforcing bars are placed on the balcony floor slab bar arrangement. In addition, the upper connecting reinforcing bars in the dwelling unit that have a larger number of bars than the balcony floor slabs are not only excessive in terms of strength in the dwelling unit, but also the interference of the bar arrangements makes the work complicated. .
Further, as shown in FIG. 10B, since the reinforcing bar mounting jig needs to be arranged above the balcony bottom bar so as not to interfere with the balcony bottom bar, the stress center between the upper connecting bar and the lower connecting bar is used. Since there is a danger that the distance and the drag of the balcony are reduced, the thickness of the balcony floor slab is increased in order to maintain the necessary strength.

Further, since the lower connecting reinforcing bars are screwed into the reinforcing bar mounting jig from between the reinforcing bars in the housing frame, the work is complicated and the workability is poor.
In addition, the upper notch groove group and the lower notch groove group of the heat insulating material may cause a gap in a portion where each connecting reinforcing bar group and each reinforcing bar mounting jig are inserted, and the gap in the notched groove group of the heat insulating material. The cast concrete is filled, and the cast concrete continues between the balcony and the concrete frame, and there is a risk that the heat insulation function of the outer heat insulating concrete frame is deteriorated.
And this prior art example 4 also arranges the heat insulating material provided with the connection reinforcing bar in the boundary surface of a balcony floor slab and a dwelling unit frame like conventional example 3, and after the concrete frame construction, the heat insulating material is stuck on the concrete outer wall. It is a heat insulating building with a post-pasting method, and its versatility is low.
Moreover, the conventional example 4 cannot be applied to the construction of a vertically projecting structure such as a sleeve wall like the conventional example 3.

  The present invention solves or improves the problems of the conventional examples 1 to 4, and a Z-bar having a strong supporting force as a connecting reinforcing bar is integrated with a non-combustible heat insulating material piece. Non-combustible support blocks are provided as small single units of factory products, and as in Conventional Example 3 and Conventional Example 4, reinforced concrete projecting structures (such as balconies) are thermally blocked with a concrete outer wall and a heat insulating layer. When adopting the construction method, the non-combustible support block of the present invention is inserted into and fixed to the insulation barrier layer, so that not only horizontal projecting structures (balconies etc.) but also vertical projecting structures (sleeve walls etc.) can be constructed. However, it can be applied reasonably, and a concrete projecting structure from the concrete outer wall can be constructed in a cantilevered support form that is thermally shielded from the concrete outer wall with good workability and safety. Than is.

The non-combustible support block of the present invention is for supporting the reinforced concrete projecting structures SB, 5 from the concrete outer wall W of the reinforced concrete external heat insulating building by the heat insulating layers 2B, 3B in a cantilevered support form. For example, as shown in FIG. 1, the non-combustible support block 4 is fitted into the insertion holes H1 (FIGS. 3 and 5) of the heat insulating layers 2B and 3B that cover the outer wall W of the concrete . Incombustible heat insulating material 4B having left and right width X4, front and rear thickness Y4, and height Z4, and one Z line 1 for connection that passes through incombustible heat insulating material 4B and is held by noncombustible heat insulating material 4B wherein the door, Z muscle 1, and Z upper muscle 1U and Z bottom muscle 1D, der those integrated fixed with Z truss muscle 1M keep the stress center distance L15 vertically is, noncombustible insulation material 4B is the Z muscle 1 is also sky-tight hold of A.

In this case, the heat insulating layers 2B and 3B thermally shield the concrete projecting structure from the concrete outer wall. In a balcony floor slab, that is, a horizontal projecting structure, the concrete outer wall W is formed as shown in FIG. A heat insulating layer 2B of the composite panel 2 that is thermally shielded. In the case of a sleeve wall, ie, a vertically projecting structure, as shown in FIG. 6, the heat insulating layer 3B of the heat insulating support panel 3 disposed at the base end of the sleeve wall 5 The heat insulating layers 2B and 3B are preferably plastic foam heat insulating plates of JIS A9511, typically 75 mm thick extruded polystyrene foam plates.
The insertion hole H1 includes an insertion hole H1 having a cut shape at the upper end of the composite panel 2 shown in FIG. 3A, and an insertion hole H1 for insertion of the heat insulating support panel 3 shown in FIG. In the heat insulating layers 2B and 3B, any hole can be used as long as the nonflammable heat insulating material 4B of the nonflammable support block 4 can be fitted and fixed.

In addition, if the non-combustible heat insulating material 4B holds the penetrating Z-strand 1 and fits in the insertion holes H1 of the heat insulating layers 2B and 3B, the heat insulating layers 2B and 3B are part of the heat insulating layers 2B and 3B. It is a lump shape with shape retention that exhibits substantially the same heat insulation function, and the thickness Y4 may be substantially the same as the thickness of the heat insulation layers 2B and 3B. Typically, calcium carbonate foam A material (thermal conductivity: 0.032 kcal / mh ° C., moisture permeability resistance: 26.3 m ² hmmHg / g) is employed.
And it is a calcium carbonate type foaming material in the heat insulation layers 2B and 3B of the extrusion method polystyrene foam board (thermal conductivity: 0.024-0.037 kcal / mh ° C., moisture permeability resistance: 25-7.1 m ² hmmHg / g). If the non-combustible heat insulating material 4B is fitted and integrated, the non-combustible heat insulating material 4B will be part of the heat insulating layers 2B and 3B.

  The non-combustible support block 4 is preferably prepared and stored as a single part. The non-combustible heat insulating material 4B is preferably small, but the width X4, the thickness Y4, and the height Z4 of the non-combustible heat insulating material 4B are Z lines. 1 function, fire protection protection function of the Z-strip 1, fitting and fixing workability to the heat insulation layer insertion hole H1, storage and transport surface of the non-combustible support block 4, the thickness Y4 is the heat insulation layer 2B , 3B should not be at least as thick as the thickness T3 of the heat insulation layers 2B, 3B, and the width W4 of the heat insulation layers 2B, 3B is 60 mm, the thickness T3 is 75 mm, The standard of the non-combustible heat insulating material 4B may be 50 mm in width X4, 75 mm in thickness Y4, and 200 mm in height Z4 with respect to the standard insertion hole H1 having a height 4h of 205 mm.

In addition, the Z-strip 1 is only required to safely support the load stresses of reinforced concrete horizontal projecting structures (balcony floor slabs) and vertical projecting structures (sleeve walls), so that strong support can be exerted. The bar 1U and the Z lower bar 1D need only be integrated with the Z truss bar 1M while maintaining the stress center distance L15. From the number and arrangement interval of the Z bars 1 by structural calculation, The truss function imparting form by the Z truss muscle 1M may be determined. In consideration of versatility, the standard Z muscle 1 typically has the Z upper muscle 1U as shown in FIG. Length L10 is 1200mm, deformed steel bar with 22mm diameter, Z bottom bar 1D is a length L12 with 760mm, 22mm diameter deformed bar, Z truss bar 1M is a 16mm deformed bar, Z top bar 1U lower surface and Z The distance L14 from the upper surface of the bottom stripe 1D is 70 mm. Embody, L15 (distance between centers of Z bottom muscle 1D of Z upper muscle 1U) stress center distance is of 92 mm.
And one protrusion part AP from the non-combustible heat insulating material 4B of the Z-strand 1 is integrated with the cast concrete in the protruding structure, while the other protrusion part BP is integrated in the concrete. The protrusion AP for fixing the housing may correspond to the corresponding concrete housing, and the entire length may be linear or the tip may be bent.
It is also an essential condition that the non-combustible heat insulating material 4B holds the Z-strip 1 in an airtight manner .
In this case, the airtightness holding of the Z-strip 1 by the non-combustible heat insulating material 4B may be integrated by injecting and foaming the calcium carbonate resin by putting the Z-strip 1 into a mold, or as shown in FIG. Even if the gap follower sheet 12A is wound around a predetermined portion of the Z-strip 1 and is sandwiched and fixed from both sides by a non-combustible heat insulating piece (calcium carbonate-based foam plate piece) 4B ', the fitting groove of the non-combustible heat insulating piece 4B' The gaps between H2, H2 ′, H3 and the Z stripe 1 are kept airtight due to the time-dependent expansion of the gap following sheet 12A .
Alternatively, as shown in FIG. 1B, each fitting groove H2, H2 ', H3 of the non-combustible heat insulating material piece 4B' divided into two is slightly larger (standard: 3 mm) than the fitting rebar diameter, and fitted. The joint groove is filled with a fireproof seal 13 (manufactured by Konishi Co., Ltd., fireproof joint sealant 120 (trade name)), the fireproof sealant 13 is also applied to the symmetrical inner surface, and the Z-strip 1 is fitted into the fitting grooves H2, H2. The divided non-combustible heat insulating material pieces 4B ′ may be integrated by the adhesive action of the fireproof sealing 13 by being sandwiched between 'and H3 .

  Therefore, the non-combustible support block 4 of the present invention, when building a reinforced concrete horizontal protruding structure such as a balcony floor slab, as shown in FIG. 3, insulates the protruding proximal end portion of the horizontal protruding structure of the composite panel 2 for covering a concrete outer wall. An insertion hole H1 is cut out in the layer 2B, and a non-combustible heat insulating material 4B of the non-combustible support block 4 is attached to the insertion hole H1, and a gap following sheet 12A is attached to the side surface as shown in FIG. If inserted, the gap following sheet 12A expands with time, the non-combustible heat insulating material 4B is fixed in an airtight manner in the insertion hole H1 of the heat insulating layer 2B, and one protrusion AP of the Z line 1 is In the concrete frame formwork, the other projecting portion BP extends into the formwork of the horizontal projecting structure (balcony floor slab) and is placed on the formwork on both sides of the heat insulating layer 2B, as shown in FIG. Incombustible support block 4 Z muscle 1, the horizontal protrusion construct against concrete skeleton, a cantilevered form, it is possible to construct a horizontally projecting construct.

  Further, when a vertically projecting structure such as a sleeve wall 5 is provided projecting from the concrete outer wall W, as shown in FIG. 5, the base end of the projecting structure (sleeve wall) is thermally insulated from the concrete outer wall W. The incombustible support block 4 in which the gap follower sheet 12A is adhered to the side surface of the incombustible heat insulating material 4B is fitted and fixed to the insertion hole H1 of the heat insulating support panel 3 as shown in FIG. As shown in FIG. 6, when the concrete frame and the sleeve wall formwork are constructed by placing them at the full height of the base end of the protruding structure (sleeve wall) and placing the concrete, One half of the protrusion AP is fixed in the concrete frame and the other half of the protrusion BP is fixed in the protruding structure (sleeve wall), and the protruding structure is thermally contacted with the concrete frame CF by the heat insulating layer 3B of the heat insulating support panel 3. It is interrupted and becomes a cantilever support by the Z-strip 1.

In addition, if the non-combustible support block 4 is applied by bending the protrusion AP for fixing the concrete body of the Z reinforcement 1 corresponding to the design of the protrusion structure, the protrusion AP of the Z reinforcement 1 is placed in the concrete outer wall W. It is possible to protrude the balcony floor slab SB while maintaining a level difference from the living part floor slab SA, or to protrude the sleeve wall 5 without being restricted by the position of the building partition wall.
And since the reinforced concrete balcony floor slab and the protruding structure of the sleeve walls are thermally blocked by the concrete frame side and the heat insulating layers 2B and 3B, the thermal bridge action from the protruding structure to the building frame is a protruding structure → Only the route of Z-strip → concrete frame is provided, and the thermal bridge action through the concrete of the projecting structure (balcony floor slab, sleeve wall) of conventional example 2 → concrete of the building frame is eliminated.

Moreover, the Z-strip 1 has a strong support force and has a large spacing (standard: 450 mm spacing for the balcony floor slab SB and 900 mm spacing for the sleeve walls), so it is used more than the conventional reinforcing steel bars in Examples 3 and 4. Compared with the conventional examples 3 and 4, the cross-sectional area can be greatly reduced, and the thermal bridge action can be greatly reduced, and the reinforcement of the construction and the workability of the formwork can be greatly improved.
And since the non-combustible support block 4 itself is a small member of a factory-produced product, it can be prepared as a building component with a uniform and guaranteed support force, and can be easily maintained, transported, and deployed to each construction site. Is also easy.

In addition, since the non-combustible heat insulating material 4B that secures the Z-strip 1 is fire-resistant, it is possible to prevent the Z-strip 1 from being deteriorated by fire even when the heat-insulating layers 2B and 3B are burned by a fire. The reinforced concrete projecting structure that is cantilevered by the support block 4 becomes fire resistant.
In addition, the non-combustible support block 4 is fitted and fixed to the heat insulating layers 2B and 3B. The gap between the non-combustible heat insulating material 4B and the insertion hole H1 is obtained by sticking the gap following sheet 12A to the side surface of the non-combustible heat insulating material 4B. Since the air in the gap functions as an air heat insulating layer, the heat insulating layers 2B and 3B do not deteriorate the heat insulating function even when the non-combustible heat insulating material 4B is fitted.
In addition, since the non-combustible heat insulating material 4B holds the Z line 1 in an airtight manner, there is no air flow in the gap between the non-combustible heat insulating material 4B and the penetrating Z line 1 and the non-combustible heat insulating material 4B and the Z line 1 There is no loss of heat insulation function due to air flow from the interface .

Further, as shown in FIG. 2, the Z line 1 is formed by bending the Z upper end line 1U and the Z lower end line 1D into a trapezoidal shape, the horizontal upper side part 1U ′, the intermediate inclined part 1S having equal inclinations on both sides, It is preferable that the Z truss reinforcement 1M provided with the horizontal lower side 1D ′ is integrally fixed.
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 protruding structure to be applied. However, the Z upper bar 1U and the Z lower bar 1D are fixed to concrete. From the viewpoint of adhesion, that is, from the viewpoint of structural calculation, it is preferable to use a deformed steel bar having the same diameter, and since the Z lower bar 1D is a compressive stress load, it is shorter than the Z upper bar 1U of the tensile stress load. In the standard Z floor 1 applicable to the standard balcony floor slab (depth 1500 mm, thickness 180 mm) and standard sleeve wall (depth 1500 mm, thickness 180 mm), the length L10 of the Z upper end 1U is 1200 mm, The length L12 of the Z lower bar 1D is 760 mm, both are 22 mm diameter deformed steel bars, and the stress center distance L15 is 92 mm.

The intermediate inclined portion 1S of the Z truss muscle 1M with equal inclination on both sides can counter the tensile stress, the compressive stress and the shear stress caused by the load of the projecting structure on the Z muscle 1 and bends in a trapezoidal shape. The Z-strut of the truss structure integrated with the truss muscle 1M exhibits a strong support force, and the Z upper-end muscle 1U and the Z-lower end muscle 1D maintaining the center distance L15 in the vertical direction are connected as in the conventional examples 3 and 4. For example, it has a much stronger support force (in terms of structural calculation: 3.64 times) than that provided with a tension reinforcing bar and a compression reinforcing bar separately.
Moreover, since the Z truss muscle 1M has a left-right symmetric configuration with equiangular inclined portions 1S on both sides, the standard specification projections AP and BP of the Z-strand 1 have the same configuration as shown in FIG. In the case of a thing, the right and left identification judgment is unnecessary at the time of use, and storage, conveyance, and use as a small building member are simple.

Further, the Z truss bar 1M is fixed and integrated with the lower surface of the Z upper bar 1U at the central horizontal upper side 1U ′ and the upper surface of the Z lower bar 1D at the horizontal lower side 1D ′ on both sides, and the intermediate inclined parts 1S on both sides are integrated. In each case, it is preferable that the included angle θ is 45 ° with respect to the Z lower stripe 1D.
In this case, the Z truss bar 1M may be fixedly integrated with the Z upper bar 1U and the Z lower bar 1D by abutting and welding and fixing from both sides.
In the Z-strut 1 of the truss structure, the Z upper-end muscle 1U mainly resists tensile stress, and the Z-lower end muscle 1D counters compressive stress, but the Z-truss 1M has an inclination angle (slipping angle) θ. Since it is 45 degrees, it will counteract the 45-degree shear stress action of the action interface of a tensile stress and a compressive stress suitably.
Accordingly, the Z-stress 1 is the base end of the projecting structure, and the tensile stress counter part is the Z upper end 1U and the horizontal upper side 1U 'of the Z truss 1M, and the compressive stress counter part is the Z lower end 1D. And the horizontal lower side 1D 'of the Z truss bar 1M are united to maintain a sufficient stress center distance L15 and exert a strong support force, and the displacement due to the load stress of the protruding structure is minimized (standard: balcony base 0 3 mm, sleeve wall base end 0.001 mm).

Further, as shown in FIG. 2 (A), it is preferable to apply the fire resistant paint 1A in the non-combustible heat insulating material 4B and the rust preventive paint 1B in the projecting portions AP and BP.
In this case, over the entire length of the Z-strand 1, a fireproof coat primer (corresponding to SK Kaken Co., Ltd., product name) of a corrosion-resistant and heat-insulating epoxy resin paint is primed as a heat-resistant rust-preventive paint 1B, and incombustible heat insulation In addition, the SK fire-resistant coat top coat (SK Co., Ltd., trade name) may be overcoated as a fire-resistant paint 1A on the part corresponding to the material 4B. Corrosion is suppressed, and heat insulation and durability are improved.
Therefore, the reinforced concrete projecting structure cantilevered by the non-combustible support block 4 of the present invention is not affected by the non-combustible heat insulating material 4B even if the heat insulating layers 2B and 3B covering the outer wall W of the concrete are burned. And the fireproof paint 1A are protected by the two-stage defense, and the deterioration of strength due to fire can be suppressed, and the nonflammable support block 4 enables the construction of a fireproof protruding structure.

Further, as shown in FIG. 1, the incombustible support block 4 of the present invention divides the incombustible heat insulating material 4B having a width X4 into two incombustible heat insulating material pieces 4B 'having a half width X2, and the symmetrical inner surface 4D of both heat insulating material pieces 4B'. It is preferable that the Z-stripes 1 around which the gap follow-up sheet 12A is wound are fitted to the arranged fitting grooves H2, H2 ′, H3, and the symmetrical inner surface 4D is bonded and integrated.
In this case, as the non-combustible heat insulating material 4B, if a lock cell board (Fuji Kasei Kogyo Co., Ltd., trade name) of a calcium carbonate foam plate is employed, cutting processing is easy, as shown in FIG. 4 (B). The fitting groove H2 for the Z upper bar 1U, the fitting groove H2 'for the horizontal upper side 1U' of the Z truss bar 1M, and the fitting groove H3 for the Z lower bar 1D are conventional table type styrofoam cutters. It can be cut neatly.

In this case, each fitting groove H2, H2 ', H3 of the non-combustible heat insulating material piece 4B' is slightly larger (standard: 6 mm) than the diameter of the corresponding steel bar (Z upper bar 1U, Z truss bar 1M, Z lower bar 1D). It is formed in a diameter, and a conventional 2 mm-thick gap follow-up sheet 12A (Sekisui Chemical Co., Ltd., Softlon (trade name)) is wound around the Z stripe 1 to fit the Z stripe 1 into the fitting grooves H2, H2. If the incombustible heat insulating material pieces 4B 'on both sides are bonded and integrated by being fitted to', H3, the Z-strand 1 is airtightly held by the incombustible heat insulating material 4B due to the time-dependent expansion of the gap following sheet 12A.
Accordingly, the non-combustible heat insulating material 4B is integrated into the Z-strip 1 by molding, and the mass-produced non-combustible support block 4 and the same airtight maintenance of the Z-strip 1 are obtained, and each customer (constructor) Small lot production according to orders is also possible, and it is possible to provide a non-combustible support block 4 that can freely cope with the free design of protruding structures such as balcony floor slabs and sleeve walls.

Further, as shown in FIG. 1B, the gap follow-up sheet 12A for the Z-strip 1 is wound at a position slightly entering d12 from the end surface position LF-LF of the non-combustible heat insulating material piece 4B ', and the non-combustible heat insulating material piece 4B' is integrated. It is preferable to fill the gap extending from the end face 4F of the non-combustible heat insulating material 4B to the gap following sheet 12A with the fireproof sealing 13.
In this case, it is sufficient that the dimension of d12 is about 10 mm.
Therefore, in the non-combustible support block 4, the Z-strip 1 is airtightly held in the non-combustible heat insulating material 4B due to the time-dependent expansion of the gap follow-up sheet 12A, so that the air in the gap between the front and rear gap follow-up sheets 12A functions as an air insulation layer. At the same time, since the space around the Z-strip 1 extending from the front and rear surfaces 4F of the non-combustible heat insulating material 4B to the gap following sheet 12A is filled with the fireproof sealing 13, the front and rear Z of the gap following sheet 12A and the gap following sheet 12A The streak 1 is also protected against fire, and the incombustible support block 4 is the same as the one in which the incombustible heat insulating material 4B is integrated with the Z streak 1 by molding the incombustible heat insulating material piece 4B ′. It has fire resistance.

  The incombustible support block 4 of the present invention is a composite panel provided with a heat insulating layer on the outer wall of a reinforced concrete building, or an outer heat insulating building with an outer heat insulating layer covered with a heat insulating layer, and is fitted into the heat insulating layer covering the outer wall. If the non-combustible heat insulating material 4B of the non-combustible support block 4 is fitted in the insertion hole H1, the non-combustible support block 4 can be fitted and integrated with the covering heat insulating layer and exhibits a strong support force. Strong cantilever support by fixing one protrusion AP of the Z-strip in the concrete frame (outer wall) and the other protrusion BP in the protruding structure (balcony floor slab, sleeve wall, etc.) Can be demonstrated.

Therefore, the non-combustible support block 4 can be prepared as a single product with design strength as a homogenous product in factory production, so that a horizontal protruding structure such as a reinforced concrete balcony floor slab or a vertical protruding structure such as a reinforced concrete sleeve wall can be used. Even when installing under a flexible design, it can be quickly supplied as a highly versatile support member with guaranteed safety.
In addition, since the non-combustible support block 4 is fitted with the non-combustible heat insulating material 4B in the heat-insulating layer insertion hole H1, the heat-insulating layer covering the concrete outer wall W is also insulated by the non-combustible heat insulating material 4B. There is no loss, and even when the heat insulation layer burns at the time of fire, the fire deterioration of the cantilevered support Z reinforcement 1 can be suppressed, and the reinforced concrete projecting structure using the non-combustible support block 4 suppresses the thermal bridge action, Supporting power is guaranteed, and it becomes rich in fire resistance.

In addition, since the non-combustible support block 4 of the present invention penetrates through one of the Z bars 1 having sufficient supporting force, the arrangement of the reinforced concrete on the protruding structure becomes a large interval, and the concrete at the time of the formwork The arrangement and fixing work of the Z-strip protrusion AP in the frame formwork can be performed without interfering with the bar arrangement in the concrete frame formwork, and the conventional example 3 (FIG. 9) and the conventional example 4 (FIG. 10) can be used. Workability is far better than the work of bar connection.
Moreover, since the protrusion AP of the Z-strip 1 that protrudes into the concrete frame form can be bent according to the form of the protruding structure and fixed into the concrete outer wall W, the floor slab of the living part of the balcony floor slab SB The vertical step projection with respect to SA can also be constructed by shifting the sleeve wall 5 from the wall on the concrete frame side to the left and right, and the degree of freedom in designing the reinforced concrete projecting structure is improved.

[Structure of non-combustible support block (Fig. 1)]
As shown in FIG. 1 (A), the non-combustible support block 4 has a Z truss structure in which the Z upper end muscle 1U and the Z lower end muscle 1D are vertically integrated with the truss structure while maintaining a center-to-center distance L15. 1 is integrally coated with a non-combustible heat insulating material 4B having a width X4, a thickness Y4, and a height Z4. The non-combustible heat insulating material 4B is a heat insulating layer that covers the concrete outer wall W as a heat insulating layer, that is, a balcony. In the floor slab SB, as shown in FIG. 4, in the heat insulating layer 2B of the composite panel 2 covering the concrete outer wall W and in the sleeve wall 5, the base end of the sleeve wall 5 is thermally applied as shown in FIG. Are fitted and fixed in the heat-insulating layer 3B of the heat-insulating support panel 3 to be cut off, and the Z-bar 1 is a reinforced concrete balcony floor slab SB as a horizontally projecting structure or a vertically projecting structure. Strength to support the sleeve wall 5 as a cantilever It is those with a.
The incombustible support block 4 of this embodiment has a thickness TB of 180 mm and a depth LB of 1500 mm for the balcony floor slab SB, and a wall thickness T5 of 180 mm and a depth LB of 1500 mm for the sleeve wall 5. Applicable to

[Z-strip (Fig. 2)]
2A is a front view of the Z line 1 and FIG. 2B is an enlarged view of a main part of the Z line.
As shown in FIG. 2 (A), the Z bar 1 is composed of a Z-upper bar 1U for tensile stress load and a Z-lower bar bar 1D for load of compressive stress of a concrete projecting structure. Stress center distance in the vertical direction with Z truss reinforcement 1M provided with an intermediate inclined portion 1S on both sides descending at 45 ° from the horizontal upper side portion 1U 'and a horizontal lower side portion 1D' extending from the lower end of the intermediate inclined portion 1S to both sides. L15 is maintained and welded and fixed.
The Z bar 1 must be strong enough to support the balcony floor slab SB and the sleeve wall 5 in a cantilevered form made of reinforced concrete. For horizontal protruding structures such as the balcony floor slab SB, the loading load is fixed to the fixed load. In addition, in the case of a vertically projecting structure such as the sleeve wall 5, it is necessary to determine the diameter and length of each steel bar of the Z reinforcement 1 by adding wind pressure to the fixed load. : It may be determined based on 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 a reinforcing bar with the same diameter is used, maintaining the stress center distance of the steel bar 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 such that the horizontal upper side portion 1U 'of the Z truss bar 1M extends over the entire area of the incombustible heat insulating material 4B thickness Y4, the thickness of the incombustible heat insulating material 4B, the heat insulating layer 3B, and the composite panel heat insulating layer 2B. The length of the fixing portion ZU between the Z upper end 1U and the horizontal upper side 1U ′ can be determined under the condition that the thickness is equal to 75 mm and the intermediate inclined portion 1S on both sides of the Z truss 1M is 45 °. Is 80 mm, in the non-combustible heat insulating material 4B having a thickness Y4 of 75 mm, the fixing portion ZU between the Z upper end 1U and the horizontal upper side 1U 'of the Z truss bar can be disposed over the entire thickness Y4. .

  In addition, the diameter and length of each reinforcing bar constituting the Z bar 1 are the performance, cost, and depth dimension LB of the balcony floor slab (standard: 1500 mm) for the balcony floor slab SB and concrete sleeve wall 5 to be applied. 4, for example, a balcony floor slab SB having a depth LB of 1500 mm and a thickness TB of 180 mm in FIG. 4 and a depth LB of 1500 mm and a thickness T5 of 180 mm in FIG. In the sleeve wall 5, the Z upper end muscle 1U and the Z lower end bar 1D having the same diameter are integrated with a 45 ° slope between the intermediate inclined portions 1S on both sides of the Z truss bar 1M having a distance L14 of 75 mm and a diameter of 16 mm. In the case of balcony floor slab SB, Z-strand 1 holding 92mm of stress center distance L15 is one Z-strip at intervals of 450mm (two Z-strands in one composite panel 2 of 900mm width), sleeve wall In case of 5, In the case where one Z bar is arranged at an interval (3h) of 900 mm (three bars are arranged at an equal interval of 2700 mm in standard floor height), the diameter of the reinforcing bar is larger than that in the case of adopting a bar diameter of 22 mm as the Z upper bar 1U and Z lower bar 1D. If 25 mm is used, the Z upper bar 1U and the Z lower bar 1D can be shortened, but the weight increases and the material cost increases.

In the following, a comparison is made between the 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 balcony floor slab of FIG. 4 and 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) 5.0 6.3 7.8
Application price (yen) 320 403 500
Balcony strength margin 43% 58% 68%
Strength margin of sleeve wall 31% 49% 61%
Balcony tip displacement (mm) 2.6 2.0 1.7
Abutting part displacement amount (mm) between living part floor slab SA and heat insulation layer 2B 0.3 0.3 0.3
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

The Z truss bars 1M are all 16mm deformed bars in the same form.

  Based on the above calculations, the standard type balcony floor slab SB with a depth LB of 1500 mm and a thickness TB of 180 mm has a Z-strand 1 spacing of 450 mm, a depth LB of 1500 mm, a thickness T5 of 180 mm, and a height of the floor. 1h (2700mm) standard type sleeve wall 5 is a type in which Z stripes 1 are arranged in three equal intervals (900 mm gap) in the sleeve wall 5, and as shown in FIG. 1U is a deformed steel bar having a length L10 of 1200 mm and a diameter of 22 mm, the Z lower end bar 1D is a deformed steel bar having a length L12 of 760 mm and a diameter of 22 mm, and the Z truss bar 1M is an intermediate inclined portion 1S on both sides. The trapezoidal shape in which the inclination angle θ is 45 °, the horizontal upper side portion 1U ′ and the horizontal lower side portion 1D ′ are each 80 mm, and the horizontal upper side portion 1U ′ is disposed over the thickness Y4 (75 mm) of the incombustible heat insulating material 4B. , Height L14 bent to 75mm, diameter 16mm Of the Z truss bar 1M, the horizontal upper side 1U 'is in contact with the center lower surface of the Z upper bar 1U, and the horizontal lower side 1D' is in contact with the upper surface of the Z lower bar 1U, and the fixed part by welding on both sides Integrated with ZU, ZD, and then the epoxy resin paint (fireproof coat primer: (stock) with excellent corrosion resistance, adhesion, and heat insulation on the entire outer circumference of the Z upper bar 1U, Z lower bar 1D and Z truss bar 1M ) SK Kaken Co., Ltd., trade name) is applied twice as anti-corrosion paint 1B, and the part placed in the non-combustible heat insulating material 4B is further provided with fire proof paint 1A (SK fire proof coat: SK Kaken Co., Ltd., trade name) ) Is applied to prepare the Z muscle 1.

[Non-combustible support block (Fig. 1)]
FIG. 1A is an overall perspective view of the non-combustible support block 4, and FIG. 1B is a production explanatory view.
And the non-combustible support block 4 is the heat insulation which comprises the hole H1 for insertion of the composite panel heat insulation layer 2B, as shown to FIG. 3 (A), and the heat insulation support panel main body as shown to FIG. 5 (A), (B). It is a member that is fitted and fixed in the fitting hole H1 of the layer 3B, and is a member that holds the Z-strip 1 with the non-combustible heat insulating material 4B.

The non-combustible heat insulating material 4B is made of a material that does not cause a heat insulation defect in the heat insulating layers 2B and 3B even when the heat insulating layers 2B and 3B are inserted and embedded in the insertion holes H1, that is, the foamed plastic heat insulating layers 2B and 3B of JIS A9511 It is necessary to select a material with similar physical properties. The lock cell board (trade name) of calcium carbonate foam plate manufactured by Fuji Kasei Kogyo Co., Ltd. is excellent in cutting processability, and the physical properties are foam plastic type. The thermal conductivity is approximately 0.032 kcal / mh ° C. (0.022 to 0.037 kcal / mh ° C. for foamed plastics), and the moisture permeability is 0.038 g / m ² hmmHg (0. 0 for foamed plastics). 02~0.14g ^{/ m} 2 hmmHg), compressive strength 1.8 kgf / cm ² (plastic foam system 0.5~2.0kgf / cm ^2), the weight (density) 90 kg / ^{m 3} (foamed plastic system 15~45kg / m ), And lock cell board (trade name), a heat insulating layer 2B, be integrated embedded in the 3B, to demonstrate the non-flammable, and, the heat-insulating layer 2B, 3B and a heat-insulating function of the approximation together Demonstrate.

Accordingly, as shown in FIG. 1 (B), the non-combustible support block 4 is prepared as a non-combustible heat insulating material 4B in the form of a block having a calcium carbonate foam plate having a height Z4 of 200 mm, a thickness Y4 of 75 mm, and a width X4 of 50 mm. The incombustible heat insulating material 4B is divided into two parts having a width X2 of 25 mm to form a noncombustible heat insulating material piece 4B ′. The inner surface 4D of both the incombustible heat insulating material pieces 4B ′ is plane-symmetrical and the Z-strip 1 is high. A fitting groove H2 for the Z upper bar 1U and a fitting groove H2 'for the horizontal upper side 1U' of the Z truss bar 1M are connected to the upper side so that they can be arranged in the center of the Z4. In this case, the fitting groove H3 for the Z lower end streak 1D is formed with a table-type foamed polystyrene cutter.
In this case, the diameter of each fitting groove H2, H2 ', H3 is slightly larger (standard: 6 mm) than the diameter of each fitting reinforcing bar (Z upper bar, Z truss bar, Z lower bar).

Next, as shown in FIG. 1 (B), the thickness of the Z line 1 prepared in advance from the position LF-LF of the front and rear end face 4F of the non-combustible heat insulating material 4B to the inner position maintaining a distance d12 (standard: 10 mm). A 2 mm, 20 mm wide gap following sheet 12A (Sekisui Chemical Co., Ltd., Softlon (trade name)) is wound, and the Z-strip 1 is fitted into the non-combustible heat insulating material pieces 4B 'fitting grooves H2, H2', H3 And the non-combustible heat insulating material piece 4B ′ is integrated by bonding on the inner surface 4D of the non-combustible heat insulating material piece 4B ′.
Then, after the gap following sheet 12A expands with time and fills and seals the fitting grooves H2, H2 ′, H3 (standard: 1 hour later), the front and rear of the non-combustible heat insulating material 4B sandwiching and holding the Z-strip 1 are retained. If the conventional fire-resistant sealing 13 is filled with a conventional sealing gun from the gaps between the fitting grooves H2, H2 ', H3, and there is a gap at the adhesive interface at the center of the width of the non-combustible heat insulating material 4B, the fire-resistant sealing is also applied to the gap. The incombustible support block 4 is filled and the Z-strand 1 is integrally held.

[Use of non-combustible support block]
[Example 1. Balcony floor slab (Fig. 3, Fig. 4)]
FIG. 3 shows the application of the non-combustible support block 4 to a breathable heat insulating composite panel in which a cement board 2A is layered on a heat insulating layer 2B having a ventilation groove G on the outer surface, and is shown in FIG. 3 (A). Thus, at the upper part of the composite panel 2 having a width AW of 900 mm arranged as the outer formwork of the concrete outer wall and corresponding to the base end of the balcony floor slab SB, the cement plate 2A of the composite panel 2 is cut out and a ventilation strip is formed on the front surface. The heat insulating layer 2B provided with the groove G is exposed, and two insertion holes H1 having a width W4 of 60 mm and a height 4h of 200 mm are cut in the exposed portion at intervals of 450 mm.
Then, at the stage where the composite panel 2 is erected as an outer mold with a conventional mold, the non-flammable support block 4 has a non-flammable heat insulating material 4B as shown in FIGS. 1 (A) and 3 (B). A gap tracking sheet 12A having a thickness of 2 mm is attached to the front and back of both sides, and an adhesive tape 12B is also attached to the lower surface. As shown in FIG. 3 (B), a water-resistant plate 6 is stuck and disposed through the thick portion 2C at the site where the cement plate 2A has been cut off and aligned and the groove G is protected.
The shallow seating grooves 2G at the two upper surfaces of the heat insulating layer 2B seat and fix a T-shaped joint (not shown) that controls the alignment of the vertical connection between the composite panels 2.

Then, the protrusions AP of the non-combustible support block 4 to the concrete frame side of the Z bars 1 and the protrusions BP to the inside of the balcony floor slab are respectively held and fixed through a conventional spacer or the like. If the concrete is placed on the concrete frame side and the balcony floor slab side, the balcony floor slab SB is thermally shielded from the outer surface Wf of the concrete outer wall W by the heat insulating layer 2B between the upper and lower composite panels 2 as shown in FIG. And cantilevered only by the Z bars arranged at intervals of 450 mm.
The width W4 of the insertion hole H1 is 60 mm, and the width X4 of the incombustible heat insulating material 4B is 50 mm. However, the gap is airtightly closed by the time-dependent expansion of the gap following sheet 12A. The sealed air functions as a heat insulating air layer, and heat insulation defects due to the insertion holes H1 of the heat insulating layer 2B do not occur.

[Example 2. Concrete sleeve wall (Figure 5, 6, 7)]
As shown in FIG. 5 (B), the thickness (standard: 75 mm) of the heat insulating layer 2B of the composite panel 2 covering the concrete outer wall W is equal to the thickness T3, and the height 3h is the floor height 1h (standard: 2700mm), and the width W3 is fitted with a width W4 (60mm) and a height 4h (200mm) at the center of the heat insulating layer 3B having the same width as the width T5 of the base end of the protruding portion of the concrete sleeve wall 5. The hole H1 is incised, and the non-combustible support block 4 of the factory-produced product is inserted into the hole H1 for insertion of the heat insulating layer 3B. As shown in FIG. The bottom surface is provided with an adhesive tape 12B, and as shown in FIG. 5A, the incombustible heat insulating material 4B is fitted and fixed in alignment with the heat insulating layer 3B, and the incombustible support block 4 is integrated. To do.
Next, with respect to the composite panel 2 erected as an outer formwork of the concrete outer wall W with a conventional mold frame, three heat insulating support panels 3 in which a non-combustible support block 4 is integrated at a sleeve wall protruding portion are combined with the composite panel. The two heat-insulating layers 2B are abutted and sequentially joined up and down for the floor height of 1 h (3 sheets).

In this case, as shown in FIG. 5A, slit grooves 3G are provided on both side surfaces of the heat insulating layer 3B of the heat insulating support panel 3, and slit grooves (not shown) are also formed on the side surfaces of the heat insulating layer 2B of the corresponding composite panel. Is inserted into the heat insulating support panel 3 and the composite panel heat insulating layer 2B which are joined to each other, and the position of the abutting contact between the heat insulating layers 3B and 2B can be regulated.
And, on the outside of the heat insulating support panel 3, a conventional sleeve wall mold is assembled, and the sleeve wall side protruding portion BP and the concrete frame side protruding portion AP of the Z-strip 1 protruding from the heat insulating support panel 3 respectively correspond to each other. If the position is held and fixed in the formwork, and concrete is placed in the formwork on both sides, as shown in FIG. Arranged at equal intervals (900 mm intervals), the concrete sleeve wall 5 is heat-insulated by the heat insulating layer 3B on the concrete frame CF, and is cantilevered by the upper and lower three Z bars.

It is explanatory drawing of this invention nonflammable support block, Comprising: (A) is a whole perspective view, (B) is a manufacture description perspective view. It is explanatory drawing of Z line | wire used for this invention, Comprising: (A) is a whole front view, (B) is the elements on larger scale of (A). It is explanatory drawing of the composite panel used for provision of this invention, Comprising: (A) is a perspective view, (B) is a side view, (C) is a top view. It is a perspective view of the horizontal protrusion structure to which this invention is applied. It is explanatory drawing of the heat insulation support panel for applying this invention, Comprising: (A) is a perspective view of the heat insulation layer 3B, (B) is a perspective view of the heat insulation support panel 3. FIG. It is a longitudinal cross-sectional view of the vertical protrusion structure to which this invention is applied. It is a perspective view of the vertical protrusion structure to which the present invention is applied. It is a conventional example figure, (A) is a cross-sectional view of Conventional Example 1, (B) is a vertical cross-sectional view of Conventional Example 1, (C) is a cross-sectional view of Conventional Example 2, and (D) is Conventional Example 2. FIG. It is explanatory drawing of the prior art example 3, Comprising: (A) is a balcony longitudinal cross-sectional view, (B) is a front view of a reinforcing bar unit, (C) is a reinforcing bar unit top view. It is explanatory drawing of the prior art example 4, Comprising: (A) is a balcony longitudinal cross-sectional view, (B) is a principal part enlarged view of (A), (C) is explanatory drawing of a heat insulating material.

Explanation of symbols

1 Z line 1A Fireproof paint 1B Rust prevention paint 1D Z bottom line 1D 'Horizontal lower side 1h Floor height 1M Z truss line 1S Middle inclined part 1U Z Upper line 1U' Horizontal upper side 2 Composite panel (heat insulation composite panel)
2A Exterior base material 2B, 3B Heat insulation layer 2C Thick part 3 Heat insulation support panel 3G Slit groove 3E Joint plate 4 Noncombustion support block 4B Noncombustion heat insulation material 4B 'Noncombustion heat insulation piece 4D Inner surface (symmetric inner surface)
4F end face (front and back end face)
4S Side 5 Sleeve wall (concrete sleeve wall)
6 Water-resistant plate 7 T-joint 12A Gap following sheet 12B Adhesive tape 13 Fire-resistant sealing 16A Sealing A Residential section
AP, BP Protrusion (Z muscle protrusion)
B Balcony CF Concrete frame G Strip (strip for ventilation)
H1 insertion holes H2, H2 ', H3 fitting groove L15 Stress center distance (center-to-center distance)
P Parapet SA Living 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 (6)

Non-combustible for supporting the reinforced concrete structure (SB, 5) from the concrete outer wall (W) of the reinforced concrete building with the cantilever support by thermally insulating it with the insulation layer (2B, 3B). The non-combustible support block (4) is a left-right width (X4) for fitting into a fitting hole (H1) of a heat insulating layer (2B, 3B) covering the concrete outer wall (W) with heat insulation. , One non-combustible heat insulating material (4B) having front and rear thickness (Y4) and height (Z4), and one for connection held by the non-combustible heat insulating material (4B) through the non-combustible heat insulating material (4B) The Z muscle (1) includes the Z upper muscle (1U) and the Z lower muscle (1D) while maintaining the stress center distance (L15) in the vertical direction. ) is obtained by integrating fixed with non-combustible heat-insulating material (4B) is Z muscle (1) Soramitsu Non retardant support block held in the.   The Z line (1) is formed by bending the Z upper end line (1U) and the Z lower end line (1D) into a trapezoidal shape, the horizontal upper side part (1U ′), the intermediate inclined parts (1S) having equal inclinations on both sides, and The non-combustible support block according to claim 1, wherein the non-combustible support block is integrally fixed by a Z truss bar (1M) having horizontal lower sides (1D ') on both sides.   The Z truss bar (1M) is fixedly integrated with the lower surface of the Z upper bar (1U) at the central horizontal upper side (1U ') and the upper surface of the Z lower bar (1D) at the horizontal lower side (1D') on both sides. The nonflammable support block according to claim 2, wherein the intermediate inclined portions (1 S) on both sides have an included angle (θ) of 45 ° with respect to the Z lower streak (1 D). Z muscle (1) is non-combustible heat-insulating material (4B) of the refractory coating (1A) was applied within the projecting portions (AP, BP) was coated with the rust coating (1B), one of the claims 1 to 3 1 Item non-combustible support block.   A non-combustible heat insulating material (4B) having a width (X4) is divided into two non-combustible heat insulating material pieces (4B ′) having a half width (X2), and the fitting grooves are arranged on the symmetrical inner surface (4D) of both heat insulating material pieces (4B ′). A non-combustible support block in which a Z-strip (1) wound with a gap following sheet (12A) is fitted to (H2, H2 ′, H3), and a symmetrical inner surface (4D) is bonded and integrated. The gap following sheet (12A) is wound at a position slightly (d12) from the end face position (LF-LF) of the non-combustible heat insulating material piece (4B ') to integrate the non-combustible heat insulating material piece (4B'). The nonflammable support block according to claim 5 , wherein a fireproof sealing (13) is filled in a gap from the end face (4F) of (4B) to the gap following sheet (12A).

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