Building outer wall and construction method thereof

Abstract

The building outer wall comprises a wall body and a non-dismantling integrated plate, the non-dismantling integrated plate is composed of a heat preservation layer and a fireproof layer, and the building outer wall is characterized in that the inner side and the outer side of one side of the non-dismantling integrated plate are provided with a male opening convex rib and a female opening concave cavity respectively, and the inner side and the outer side of the other side of the non-dismantling integrated plate are provided with a female opening concave cavity and a male opening convex rib respectively; the two adjacent disassembly-free integrated plates are spliced in the mode that the male opening convex ribs are clamped into the female opening concave cavities. The construction method of the building outer wall comprises the following steps: a) supporting a template and inserting an anchor bolt; b) arranging split bolts; c) pouring a wall body; d) installing a temporary plugging piece; e) filling expansive concrete; (f) filling flame-retardant polystyrene foam; and g) outer layer construction. According to the building outer wall and the construction method thereof, the formed building outer wall has the advantages that the heat preservation and fireproof performance is good, the disassembly-free integrated plate cannot fall off, the service life of the disassembly-free integrated plate is the same as that of a building, the construction steps are few, the construction efficiency is high, and manpower and physics can be effectively saved.

Description

Technical Field

[0001] The invention relates to a building exterior wall and a construction method thereof, and more specifically, to a building exterior wall composed of a formwork-free insulation board and a construction method thereof. Background Art

[0002] In order to ensure the energy-saving effect and living suitability of buildings, the state has formulated energy-saving standards for buildings and put forward specific normative requirements for the thermal insulation performance of buildings; as the main part of the heat exchange between indoor and outdoor, the thermal insulation performance of the exterior wall determines the thermal insulation effect of the building. Therefore, after the main construction of the exterior wall is completed, the exterior wall needs to be insulated. At present, the conventional exterior wall thermal insulation structure is, from inside to outside, the exterior wall main body, cement mortar leveling layer, bonding layer, thermal insulation layer, protective layer composed of plastering mortar and mesh cloth, and finishing layer. During the construction process, after the concrete exterior wall is poured, the inner and outer formworks are first removed, and then the tension bolt holes are blocked, and then the outer surface of the exterior wall is leveled with cement mortar to facilitate the pasting of the thermal insulation layer. After the thermal insulation mortar is bonded to the leveling layer through the bonding layer, the thermal insulation layer is anchored to the exterior wall with mechanical anchors, and then the protective layer of the thermal insulation layer is constructed by sandwiching the mesh cloth with two layers of plastering mortar, and finally the finishing layer is constructed.

[0003] It can be seen that the existing conventional exterior wall insulation structure requires formwork and demolding before and after the exterior wall is poured, and then the bolt holes are sealed in sequence, and the leveling layer, bonding layer, insulation layer, protective layer, and finishing layer are constructed. There are many construction steps and a long construction period. In addition, since the insulation layer usually uses rock wool board, the rock wool board will increase in weight after absorbing moisture and easily fall off. The insulation layer of high-rise buildings will seriously endanger the safety of ground personnel after it falls off. Therefore, various places are currently actively promoting the use of mold-free insulation boards (also known as mold-free insulation composite boards or mold-free insulation integrated boards) to avoid the problems of many construction steps, long cycles, and the risk of easy falling off brought by conventional external insulation structures as much as possible.

[0004] With the gradual application of formwork-free insulation boards, technicians have found that there are many problems with them. For example, first, since the formwork-free insulation boards are rectangular panels prefabricated in the factory, they need to be spliced ​​when supporting the formwork as the formwork and insulation board of the exterior wall. There are joints between adjacent formwork-free insulation boards, and the poured exterior wall concrete is prone to leakage from the joints between the boards. In severe cases of slurry leakage, it will cause the failure of the exterior wall pouring. Second, unlike the conventional formwork support on both sides, after the exterior wall of the building with formwork-free insulation boards is poured, the holes left by the tension bolts are no longer surrounded by a simple concrete structure, but the inner section of the hole is concrete, and the outer section is the material of the formwork-free insulation board. If the existing cement mortar sealing method is used, it will not only affect the fire prevention and insulation effect of the formwork-free insulation board, but also easily lead to the risk of water seepage in the tension bolt holes. Summary of the invention

[0005] In order to overcome the disadvantages of the above technical problems, the present invention provides a building exterior wall and a construction method thereof.

[0006] The building exterior wall of the present invention comprises a wall body and a non-disassembly integrated panel fixed to the outside of the wall body, the non-disassembly integrated panel serves as an outer formwork when pouring wall concrete and is fixed to the wall pouring; the non-disassembly integrated panel is composed of a thermal insulation layer located on the inner side and a fireproof layer located on the outer side, and the thermal insulation layer and the fireproof layer are fixedly connected via an adhesive layer; it is characterized in that: the inner side and the outer side of one side of the non-disassembly integrated panel are respectively provided with a male convex rib and a female concave cavity, and the inner side and the outer side of the other side are respectively provided with a female concave cavity and a male convex rib; two adjacent non-disassembly integrated panels are spliced ​​in a manner that the male convex rib is snapped into the female concave cavity.

[0007] The building exterior wall of the present invention has an inner protective layer on the inner side of the insulation layer, and an outer protective layer on the outer side of the fireproof layer, both of which are composed of two layers of plastering mortar sandwiching a layer of mesh cloth; the insulation layer is a graphite extruded board or a polyurethane extruded board, and the fireproof layer is a perlite concrete board or a horizontal silk rock wool board.

[0008] In the building exterior wall of the present invention, the outer protective surface layer of the non-disassembly integrated board is evenly provided with recessed grooves, the center of the recessed grooves is provided with through holes penetrating the non-disassembly integrated board, and anchor bolts for anchoring the non-disassembly integrated board are arranged in the recessed grooves and the through holes.

[0009] The exterior wall of a building of the present invention comprises an anchor bolt composed of an anchor plate, an anchor barrel and a stud, the anchor barrel is fixed at the center of the anchor plate, the interior of the anchor barrel is an anchor barrel inner cavity, the length of the anchor barrel is equal to the thickness of the non-disassembly integrated board, and the length of the stud is greater than the thickness of the non-disassembly integrated board; the anchor barrel penetrates into the through hole on the non-disassembly integrated board, the anchor plate is placed in the sink groove, and the stud penetrates into the anchor barrel inner cavity and extends into the wall.

[0010] The exterior wall of the building of the present invention is evenly provided with bolt holes left after the tension bolts are removed on the wall and the non-disassembly integrated panel, the bolt holes penetrate the wall and the non-disassembly integrated panel, the parts of the bolt holes in the wall are filled with expansive concrete, and the parts of the bolt holes in the non-disassembly integrated panel are filled with flame-retardant foam.

[0011] The exterior wall of the building of the present invention has an inner formwork supporting the inner side of the wall before the wall is cast, the outer sides of the inner formwork and the non-disassembly integrated board are evenly supported with vertical square timbers, the outer sides of the vertical square timbers are evenly supported with horizontal steel pipes, the non-disassembly integrated board and the inner formwork are evenly penetrated with tension bolts, and the two ends of the tension bolts are fixed to the horizontal steel pipes via buckles and nuts; after the wall is cast and cured and the tension bolts and the inner formwork are removed, a temporary plugging piece is fixed to the horizontal steel pipe on the outer side of the non-disassembly integrated board for sealing the portion where the bolt hole is in the non-disassembly integrated board.

[0012] The temporary blocking piece for the building exterior wall of the present invention is composed of a U-shaped seat, a sealing rod and a fastening bolt. The sealing rod is fixed to the center of the U-shaped seat, the fastening bolt is arranged on the U-shaped seat, the U-shaped seat is buckled on the transverse steel pipe, the fastening bolt is used to fix the U-shaped seat on the transverse steel pipe, and the sealing rod extends into the bolt hole in the position of the non-disassembly integrated plate.

[0013] For the exterior wall of the building of the present invention, for the female cavity without male convex ribs on the end non-disassembly integrated panel, if the female cavity is formed in the thermal insulation layer, the female cavity is filled with an inner sealing strip; if the female cavity is formed in the fireproof layer, the female cavity is filled with an outer sealing strip, and the materials of the inner sealing strip and the outer sealing strip are the same as those of the thermal insulation layer and the fireproof layer, respectively.

[0014] In the building exterior wall of the present invention, a leveling layer formed of ordinary cement mortar is arranged on the outer surface of the non-disassembly integrated panel, and a finishing layer is arranged on the outer surface of the leveling layer. The material of the finishing layer is paint, colored mortar or facing bricks.

[0015] The construction method of the building exterior wall of the present invention is characterized by being achieved by the following steps: a). Supporting the formwork and inserting anchor bolts; first, supporting the inner formwork and the non-disassembly integrated board on the inner and outer sides of the wall to be cast respectively; during the process of supporting the non-disassembly integrated board, two adjacent non-disassembly integrated boards are arranged in a manner that the male convex ribs are inserted into the female concave cavity, and the inner sealing strip or the outer sealing strip is inserted into the outermost female concave cavity; then, the anchor bolts are inserted into the recessed grooves and through holes on the non-disassembly integrated board; b). Set the tension bolts; first, drill holes at the corresponding positions of the non-dismantling integrated board according to the punching positions of the tension bolts on the inner template, then insert plastic sleeves into the corresponding holes of the inner template and the non-dismantling integrated board, then insert the tension bolts into the plastic sleeves, then build the vertical square wood and the horizontal steel pipe, and finally use the buckle and nut to fix the two ends of the tension bolts on the horizontal steel pipe; c). Casting the wall; pouring concrete between the non-dismantling integrated board and the inner formwork, the inner surface of the non-dismantling integrated board solidifies together with the concrete, and the inner end of the anchor bolt is cast in the concrete to achieve a firm fixation between the non-dismantling integrated board and the wall; d). Install temporary plugging parts; after the concrete wall is cured, first remove the tension bolts, then remove the inner formwork, then use an impact drill to remove the plastic sleeve, and finally fix the temporary plugging parts on the horizontal steel pipe outside the non-dismantling integrated plate, and insert the sealing rod on the temporary plugging parts into the bolt hole in the non-dismantling integrated plate; e). Fill with expansive concrete; first, use a pry bar to expand the bolt hole on the indoor side to make it a trumpet-shaped hole with a larger outside and a smaller inside. Then, fill the bolt hole in the wall with expansive concrete. The expansive concrete should be filled densely and smoothed after filling. f). Filling with flame retardant foam; after the expansion concrete in the bolt hole is initially solidified, the temporary plugging piece is removed, and the flame retardant foam is filled from the outside to the part of the bolt hole located in the non-dismantling integrated board, and the filled flame retardant foam is flush with the outer surface of the non-dismantling integrated board; g). Outer layer construction: After the foam filling is completed, apply a layer of ordinary cement mortar on the outer surface of the non-disassembly integrated board to form a leveling layer; finally, set a finishing layer consisting of paint, colored mortar or facing bricks on the leveling layer.

[0016] The beneficial effects of the present invention are as follows: the external wall of the building of the present invention, the non-disassembly integrated panel with fire prevention and heat preservation functions is used as the external formwork in the process of wall casting, male convex ribs and female concave cavities are arranged on both sides of the non-disassembly integrated panel, and two adjacent non-disassembly integrated panels are spliced ​​in the form of the male convex ribs inserted into the female concave cavities, and under the support of the vertical square wood and the horizontal steel pipe on the outside, the two adjacent non-disassembly integrated panels are tightly combined, compared with the existing plane splicing form of non-disassembly integrated panels, during the wall casting process, concrete will not flow out from the splicing gaps of adjacent non-disassembly integrated panels, ensuring the continuity of the insulation layer and the fireproof layer in the adjacent non-disassembly integrated panels, so that the formed external wall of the building has good insulation and fireproof performance, the non-disassembly integrated panel will not fall off, the non-disassembly integrated panel has the same lifespan as the building, and compared with the existing external wall external insulation construction process, it has the advantages of fewer construction steps, high construction efficiency, and can effectively save manpower and physical.

[0017] Furthermore, compared with the existing exterior wall structure using non-disassembly integrated panels, the bolt holes that pass through the non-disassembly integrated panels and the wall are not sealed using the existing full-expansion concrete, but with the help of temporary sealing parts. First, concrete is filled in the part where the bolt holes are in the wall, and then flame-retardant foam is filled in the part where the bolt holes are in the non-disassembly integrated panels. This "segmented" sealing performance of the bolt holes can effectively prevent leakage of the wall while ensuring that the fire prevention and thermal insulation performance of the non-disassembly integrated panels meet the requirements, so that all performance of the resulting building exterior walls meet the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the non-disassembly integrated board of the present invention; Figure 2 It is a three-dimensional diagram of the non-disassembly integrated board in the present invention; Figure 3 for Figure 1 Sectional view of section AA; Figure 4 for Figure 2A partial enlarged view of the middle B area; Figure 5 A three-dimensional diagram of the inner formwork and the non-disassembly integrated plate respectively arranged on both sides of the wall in the present invention; Figure 6 for Figure 5 A partial enlarged view of the middle C area; Figure 7 This is a schematic diagram of the structure in which the wall support is completed and concrete is poured in the present invention; Figure 8 It is a structural schematic diagram of removing the inner template and installing a temporary blocking member in the present invention; Fig. 9 This is a schematic diagram of the blocking of the blocking bolt hole in the middle of the wall in the present invention; Fig.10 A schematic diagram of the plugging of the plugging bolt hole in the non-disassembly integrated plate in the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the building exterior wall of the present invention; Fig.12 It is a structural schematic diagram of the temporary blocking member in the present invention; Fig.13 It is a schematic diagram of the structure of the anchor bolt in the present invention.

[0019] In the figure: 1 wall, 2 non-disassembly integrated board, 3 insulation layer, 4 fireproof layer, 5 bonding layer, 6 male convex rib, 7 female concave cavity, 8 inner protective layer, 9 outer protective layer, 10 sink groove, 11 through hole, 12 inner formwork, 13 anchor bolt, 14 inner sealing strip, 15 outer sealing strip, 16 vertical square timber, 17 horizontal steel pipe, 18 tension bolt, 19 plastic sleeve, 20 buckle, 21 nut, 22 bolt hole, 23 temporary sealing piece, 24 trumpet, 25 expansive concrete, 26 flame retardant foam, 27 leveling layer, 28 finishing layer, 29 U-shaped seat, 30 sealing rod, 31 fastening bolt, 32 anchor plate, 33 anchor cylinder, 34 anchor cylinder inner cavity, 35 stud. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 5 As shown, a three-dimensional diagram of the inner formwork and the non-disassembly integrated plate are provided on both sides of the wall in the present invention. Figure 1 and Figure 2 The front view and the stereoscopic view of the non-disassembly integrated board of the present invention are respectively given. Figure 3 Given Figure 1 The cross-sectional view of section AA in the figure, Figure 4 Given Figure 2 A partial enlarged view of area B in the middle. Figure 6 Given Figure 5The partial enlarged view of the middle C area shows that the exterior wall of the building of the present invention is composed of a wall 1 and a non-disassembly integrated panel 2 fixed on the outer surface of the wall 1. The wall 1 is a reinforced concrete structure. During the pouring stage of the wall 1, the non-disassembly integrated panel 2 is used as the outer formwork of the wall 1, so that the inner surface of the non-disassembly integrated panel 2 is poured together with the concrete of the wall 1, achieving a firm connection between the non-disassembly integrated panel 2 and the wall 1. It can be said that the non-disassembly integrated panel 2 has the same lifespan as the wall 1. It can be seen that since the non-disassembly integrated panel 2 is poured together with the wall 1, the non-disassembly integrated panel 2 will not peel off or fall off, which not only avoids later maintenance, but also avoids the occurrence of injuries caused by the falling outer insulation layer.

[0022] The non-disassembly integrated panel 2 shown is composed of an insulation layer 3 located on the inner side and a fireproof layer 4 located on the outer side. The insulation layer 3 and the fireproof layer 4 are fixedly connected via an adhesive layer 5. An inner protective layer 8 is provided on the inner side of the insulation layer 3, and an outer protective layer 9 is provided on the outer side of the fireproof layer 4. In order to ensure that the flame retardant and thermal insulation properties of the non-disassembly integrated panel 2 meet the requirements, the insulation layer can be made of graphite extruded board or polyurethane extruded board, and the fireproof layer can be made of perlite concrete board or horizontal silk rock wool board. In order to ensure that the inner protective layer 8 and the outer protective layer 9 have sufficient supporting strength, the inner protective layer 8 and the outer protective layer 9 are both composed of two layers of plastering mortar sandwiching a layer of mesh cloth.

[0023] The inner and outer sides of one side of the non-disassembly integrated panel 2 are respectively provided with a male convex rib 6 and a female concave cavity 7, and the inner and outer sides of the other side of the non-disassembly integrated panel 2 are respectively provided with a female concave cavity 7, and the male convex rib 6 and the female concave cavity 7 have the same shape and size. When the non-disassembly integrated panel 2 is used as the external formwork support of the wall 1, the adjacent non-disassembly integrated panels 2 are spliced ​​in the form of the male convex rib 6 inserted into the female concave cavity 7. Since the adjacent non-disassembly integrated panels 2 are spliced ​​together in the form of the male convex rib 6 inserted into the female concave cavity 7, the splicing seam at the splicing of the adjacent non-disassembly integrated panels 2 forms a Z shape, rather than a straight line shape in the existing plane splicing. In this way, under the pulling action of the tension bolts 18 on the transverse steel pipes 17 on both sides, the contact part of the male convex rib 6 and the female concave cavity 7 is basically in a completely sealed state, so that the concrete slurry in the pouring process of the wall 1 will not enter the splicing gap between the two non-disassembly integrated panels 2, and there will be no leakage of slurry and expansion of the mold.

[0024] At the same time, the non-disassembly integrated panel 2 is prefabricated in a factory, which can ensure that the non-disassembly integrated panel 2 has a stable structure and is also conducive to ensuring that it has good flame retardant and heat insulation effects when used as external insulation of the wall 1.

[0025] The outer protective surface layer 9 of the non-disassembly integrated panel 2 is evenly provided with circular grooves 10, and a through hole 11 penetrating the non-disassembly integrated panel 2 is provided at the center of the groove 10, and anchor bolts 13 are inserted into the groove 10 and the through hole 11. Fig.13As shown, a schematic diagram of the structure of the anchor bolt in the present invention is given. The anchor bolt 13 shown is composed of an anchor plate 32, an anchor cylinder 33 and a stud 35. The anchor plate 32 is circular, and the anchor cylinder 33 is fixed at the center position of the anchor plate 32. The interior of the anchor cylinder 33 is an anchor cylinder inner cavity 34. When in use, the stud 35 is inserted into the anchor cylinder inner cavity 34.

[0026] The length of the anchor cylinder inner cavity 34 is equal to the thickness of the non-disassembly integrated board 2, and the length of the bolt 35 is greater than the thickness of the non-disassembly integrated board 2. Under normal circumstances, the length of the bolt 35 inserted into the wall 1 is not less than 5 cm; the outer diameter of the anchor plate 32 is not less than the inner diameter of the sink 10. When in use, first insert the anchor cylinder inner cavity 34 into the through hole 11 on the non-disassembly integrated board 2, and then insert the bolt 35 into the anchor cylinder inner cavity 34 until the bolt 35 is completely inserted into the anchor cylinder inner cavity 34. At this time, the inner end of the bolt 35 is inserted into the cavity of the wall 1 to be cast. After the wall 1 is cast, the end of the bolt 35 is cast in the wall 1, so that the fixed connection between the non-disassembly integrated board 2 and the wall 1 is further strengthened.

[0027] Since tension bolts 18 are required during the pouring process of the wall 1, bolt holes 22 will be left in the wall 1 and the non-disassembly integrated panel 2 after the tension bolts 18 are removed. Different from the existing separately poured wall 1, the bolt holes 22 exist not only in the wall 1 section, but also in the non-disassembly integrated panel 2. Therefore, it is not appropriate to adopt the existing sealing method of using expansive concrete entirely. The difference between the concrete material of the wall 1 and the insulation material and fireproof material in the non-disassembly integrated panel 2 should be taken into consideration to carry out segmented sealing.

[0028] like Figure 7 As shown, a schematic diagram of the structure in which the wall support is completed and concrete is poured in the present invention is given. When the wall 1 is supported, the inner and outer sides of the wall 1 respectively support the inner formwork 12 and the non-disassembly integrated plate 2, and the outer sides of the inner formwork 12 and the non-disassembly integrated plate 2 respectively support the vertical square timber 16 and the horizontal steel pipe 17, and the inner formwork 12 and the non-disassembly integrated plate 2 are evenly penetrated with tension bolts 18, and the two ends of the tension bolts 18 are fixed to the horizontal steel pipes 17 on both sides through buckles 20 and nuts 21.

[0029] In this way, after the wall 1 is poured and cured, the inner formwork 12 and the tension bolts 18 are removed, and the plastic sleeves 19 in the bolt holes 22 are removed, and then the temporary plugging members 23 are fixed to the transverse steel pipes 17 outside the bolt holes 22, and the temporary plugging members 23 are used to plug the portion of the bolt holes 22 in the non-disassembly integrated plate 2, so as to plug the unblocked section of the bolt holes 22 in the wall 1, as shown in FIG. Figure 8 The figure shows a schematic diagram of the structure of removing the inner template and installing the temporary blocking member in the present invention.

[0030] like Fig.12As shown, a schematic diagram of the structure of the temporary plugging member in the present invention is given, and the temporary plugging member 23 shown is composed of a U-shaped seat 29, a sealing rod 30 and a fastening bolt 31. The U-shaped seat 29 is used to be clamped on the transverse steel pipe 17, and the fastening bolt 31 is arranged on the U-shaped seat 29. The fastening bolt 31 is used to fasten the U-shaped seat 29 to the transverse steel pipe 17. The sealing rod 30 is fixed to the middle part of the U-shaped seat 29, and the diameter of the sealing rod 30 is equal to the inner diameter of the bolt hole 22. After the U-shaped seat 29 is fixed to the transverse steel pipe 17, the length of the sealing rod 30 inserted into the bolt hole 22 is equal to the thickness of the non-disassembly integrated plate 2.

[0031] like Fig. 9 As shown, a schematic diagram of blocking the bolt hole in the wall in the present invention is given. After the temporary blocking member 23 completes the blocking of the bolt hole 22 in the non-disassembly integrated panel 2, the bolt hole 22 in the wall 1 can be blocked by using the expansion concrete. After the blocking is completed, the temporary blocking member 23 is removed, and the horizontal steel pipe 17 and the vertical square wood 16 are removed, and the flame-retardant foam glue 26 can be used to block the bolt hole 22 in the non-disassembly integrated panel 2. Fig.10 As shown, a schematic diagram of the blocking of the blocking bolt hole in the non-disassembly integrated plate in the present invention is given.

[0032] like Fig.11 As shown, a schematic diagram of the three-dimensional structure of the exterior wall of a building of the present invention is given. A leveling layer 27 is also provided on the outer surface of the non-disassembly integrated panel 2 shown. Usually, the leveling layer 27 is composed of ordinary cement mortar, and a finishing layer 28 is provided on the outer surface of the leveling layer 27. The material of the finishing layer 28 is paint, colored mortar or facing bricks.

[0033] The construction method of the building exterior wall of the present invention is achieved by the following steps: a). Supporting the formwork and inserting anchor bolts; first, supporting the inner formwork and the non-disassembly integrated board on the inner and outer sides of the wall to be cast respectively; during the process of supporting the non-disassembly integrated board, two adjacent non-disassembly integrated boards are arranged in a manner that the male convex ribs are inserted into the female concave cavity, and the inner sealing strip or the outer sealing strip is inserted into the outermost female concave cavity; then, the anchor bolts are inserted into the recessed grooves and through holes on the non-disassembly integrated board; b). Set the tension bolts; first, drill holes at the corresponding positions of the non-dismantling integrated board according to the punching positions of the tension bolts on the inner template, then insert plastic sleeves into the corresponding holes of the inner template and the non-dismantling integrated board, then insert the tension bolts into the plastic sleeves, then build the vertical square wood and the horizontal steel pipe, and finally use the buckle and nut to fix the two ends of the tension bolts on the horizontal steel pipe; c). Casting the wall; pouring concrete between the non-dismantling integrated board and the inner formwork, the inner surface of the non-dismantling integrated board solidifies together with the concrete, and the inner end of the anchor bolt is cast in the concrete to achieve a firm fixation between the non-dismantling integrated board and the wall; d). Install temporary plugging parts; after the concrete wall is cured, first remove the tension bolts, then remove the inner formwork, then use an impact drill to remove the plastic sleeve, and finally fix the temporary plugging parts on the horizontal steel pipe outside the non-dismantling integrated plate, and insert the sealing rod on the temporary plugging parts into the bolt hole in the non-dismantling integrated plate; e). Fill with expansive concrete; first, use a pry bar to expand the bolt hole on the indoor side to make it a trumpet-shaped hole with a larger outside and a smaller inside. Then, fill the bolt hole in the wall with expansive concrete. The expansive concrete should be filled densely and smoothed after filling. f). Filling with flame retardant foam; after the expansion concrete in the bolt hole is initially solidified, the temporary plugging piece is removed, and the flame retardant foam is filled from the outside to the part of the bolt hole located in the non-dismantling integrated board, and the filled flame retardant foam is flush with the outer surface of the non-dismantling integrated board; g). Outer layer construction: After the foam filling is completed, apply a layer of ordinary cement mortar on the outer surface of the non-disassembly integrated board to form a leveling layer; finally, set a finishing layer consisting of paint, colored mortar or facing bricks on the leveling layer.

[0034] It can be seen that the construction method of the building exterior wall of the present invention is that the adjacent non-disassembly integrated panels 2 are spliced ​​by inserting the male convex rib 6 into the female concave cavity 7, thereby avoiding the occurrence of leakage caused by the existing plane splicing surface. Since the non-disassembly integrated panel 2 can not only be used as the outer formwork of the wall 1, the non-disassembly integrated panel 2 and the wall 1 are cast together, and the non-disassembly integrated panel 2 and the wall 1 are tightly connected without falling off, and it is used as the insulation layer of the wall 1, which saves the existing insulation layer construction work of the building exterior wall, improves the construction efficiency of the building exterior wall, and saves manpower and material resources. At the same time, since the bolt hole 22 adopts the end-sealing method, it not only ensures the flame retardant and heat-insulating effects of the non-disassembly integrated panel 2, but also avoids the occurrence of leakage of the building exterior wall.

Claims

1. A building exterior wall, comprising a wall (1) and a non-disassembly integrated board (2) fixed to the outside of the wall, the non-disassembly integrated board serving as an outer template during wall concrete pouring and being fixed to the wall pouring; the non-disassembly integrated board comprising an insulation layer (3) located on the inside and a fireproof layer (4) located on the outside, the insulation layer and the fireproof layer being fixedly connected via an adhesive layer (5); characterized in that: The inner side and outer side of one side of the non-disassembly integrated board are respectively provided with a male convex rib (6) and a female concave cavity (7), and the inner side and outer side of the other side are respectively provided with a female concave cavity and a male convex rib; two adjacent non-disassembly integrated boards are spliced ​​together by inserting the male convex rib into the female concave cavity.

2. The building exterior wall according to claim 1, characterized in that: An inner protective layer (8) is arranged on the inner side surface of the thermal insulation layer (3), and an outer protective layer (9) is arranged on the outer side surface of the fireproof layer (4), and both the inner protective layer and the outer protective layer are composed of two layers of plaster mortar sandwiching a layer of mesh cloth; the thermal insulation layer is a graphite extruded board or a polyurethane extruded board, and the fireproof layer is a perlite concrete board or a horizontal silk rock wool board.

3. The building exterior wall according to claim 2, characterized in that: The outer protective surface layer (9) of the non-disassembly integrated panel (2) is evenly provided with recessed grooves (10), a through hole (11) penetrating the non-disassembly integrated panel is provided at the center of the recessed groove, and anchor bolts (13) for anchoring the non-disassembly integrated panel (2) are provided in the recessed groove and the through hole.

4. The building exterior wall according to claim 3, characterized in that: The anchor bolt (13) is composed of an anchor plate (32), an anchor tube (33) and a bolt (35); the anchor tube is fixed at the center of the anchor plate; the interior of the anchor tube is an anchor tube inner cavity (34); the length of the anchor tube is equal to the thickness of the non-disassembly integrated plate (2); the length of the bolt is greater than the thickness of the non-disassembly integrated plate; the anchor tube penetrates into the through hole (11) on the non-disassembly integrated plate; the anchor plate is placed in the sink groove; the bolt penetrates into the anchor tube inner cavity and extends into the wall (1).

5. The building exterior wall according to claim 1 or 2, characterized in that: The wall (1) and the non-disassembly integrated panel (2) are evenly provided with bolt holes (22) remaining after the tension bolts (18) are removed, the bolt holes penetrate the wall and the non-disassembly integrated panel, the portions of the bolt holes in the wall (1) are filled with expansive concrete (25), and the portions of the bolt holes in the non-disassembly integrated panel (2) are filled with flame-retardant foam glue (26).

6. The building exterior wall according to claim 5, characterized in that: Before the wall (1) is poured, the inner side of the wall (1) is supported by an inner formwork (12), the outer sides of the inner formwork and the non-disassembly integrated board (2) are evenly supported by vertical square timbers (16), the outer sides of the vertical square timbers are evenly supported by transverse steel pipes (17), and tension bolts (18) are evenly passed through the non-disassembly integrated board and the inner formwork, and both ends of the tension bolts are fixed to the transverse steel pipes (17) via buckles (20) and nuts (21); after the wall is poured and cured and the tension bolts and the inner formwork are removed, a temporary blocking piece (23) is fixed to the transverse steel pipe (17) on the outer side of the non-disassembly integrated board for blocking the bolt hole (22) in the non-disassembly integrated board.

7. The building exterior wall according to claim 6, characterized in that: The temporary plugging member (23) is composed of a U-shaped seat (29), a sealing rod (30) and a fastening bolt (31), wherein the sealing rod is fixed to the center of the U-shaped seat, the fastening bolt is arranged on the U-shaped seat, the U-shaped seat is buckled on the transverse steel pipe (17), the fastening bolt is used to fix the U-shaped seat on the transverse steel pipe, and the sealing rod extends into a portion of the bolt hole in the non-disassembly integrated plate.

8. The building exterior wall according to claim 7, characterized in that: For the female concave cavity (7) on the end non-disassembly integrated plate (2) that does not have a male convex rib (6) to cooperate with, if the female concave cavity is formed in the thermal insulation layer (3), then the female concave cavity is filled with an inner sealing strip (14), and if the female concave cavity is formed in the fireproof layer (4), then the female concave cavity is filled with an outer sealing strip (15), and the materials of the inner sealing strip and the outer sealing strip are the same as those of the thermal insulation layer and the fireproof layer, respectively.

9. The building exterior wall according to claim 1 or 2, characterized in that: A leveling layer (27) formed of ordinary cement mortar is arranged on the outer surface of the non-disassembly integrated panel (2), and a finishing layer (28) is arranged on the outer surface of the leveling layer. The material of the finishing layer is paint, colored mortar or tiles.

10. A construction method for the exterior wall of a building according to claim 8, characterized in that: This is accomplished by following these steps: a). Supporting the formwork and inserting anchor bolts; first, supporting the inner formwork (12) and the non-disassembly integrated board (2) on the inner and outer sides of the wall (1) to be cast respectively; during the process of supporting the non-disassembly integrated board, two adjacent non-disassembly integrated boards are arranged in a manner that the male convex rib (6) is inserted into the female concave cavity (7); and the inner sealing strip (14) or the outer sealing strip (15) is inserted into the outermost female concave cavity (7); then, the anchor bolts (13) are inserted into the sink groove (10) and the through hole (11) on the non-disassembly integrated board; b) Setting the tension bolts; first, drilling holes at corresponding positions of the non-disassembly integrated board according to the punching positions of the tension bolts on the inner template, then inserting plastic sleeves (19) into corresponding holes of the inner template and the non-disassembly integrated board, then inserting the tension bolts (18) into the plastic sleeves, then building vertical square timbers (16) and horizontal steel pipes (17), and finally fixing both ends of the tension bolts on the horizontal steel pipes using buckles (20) and nuts (21); c). Casting the wall; pouring concrete between the non-dismantling integrated board and the inner formwork, the inner surface of the non-dismantling integrated board solidifies together with the concrete, and the inner end of the anchor bolt is cast in the concrete to achieve a firm fixation between the non-dismantling integrated board and the wall; d). Install temporary plugging parts; after the concrete wall is cured, first remove the tension bolts, then remove the inner formwork, then use an impact drill to remove the plastic sleeve, and finally fix the temporary plugging parts on the horizontal steel pipe outside the non-dismantling integrated plate, and insert the sealing rod on the temporary plugging parts into the bolt hole in the non-dismantling integrated plate; e). Fill with expansive concrete; first, use a pry bar to expand the bolt hole on the indoor side to make it a trumpet-shaped hole with a larger outside and a smaller inside. Then, fill the bolt hole in the wall with expansive concrete. The expansive concrete should be filled densely and smoothed after filling. f). Filling with flame retardant foam; after the expansion concrete in the bolt hole is initially solidified, the temporary plugging piece is removed, and the flame retardant foam is filled from the outside to the part of the bolt hole located in the non-dismantling integrated board, and the filled flame retardant foam is flush with the outer surface of the non-dismantling integrated board; g). Outer layer construction: After the foam filling is completed, apply a layer of ordinary cement mortar on the outer surface of the non-disassembly integrated board to form a leveling layer; finally, set a finishing layer consisting of paint, colored mortar or facing bricks on the leveling layer.

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