CN116971505A - Ultra-low energy consumption building enclosure wall for high-rise building and construction method - Google Patents

Ultra-low energy consumption building enclosure wall for high-rise building and construction method Download PDF

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Publication number
CN116971505A
CN116971505A CN202310735073.4A CN202310735073A CN116971505A CN 116971505 A CN116971505 A CN 116971505A CN 202310735073 A CN202310735073 A CN 202310735073A CN 116971505 A CN116971505 A CN 116971505A
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CN
China
Prior art keywords
wall body
wall
energy consumption
ultra
heat
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CN202310735073.4A
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Chinese (zh)
Inventor
张晔
张吉秀
段赛红
张佳阳
苗元超
舒春雪
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Beijing Jinyu Group Co ltd
Beijing Building Materials Academy of Sciences Research
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Beijing Jinyu Group Co ltd
Beijing Building Materials Academy of Sciences Research
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Priority to CN202310735073.4A priority Critical patent/CN116971505A/en
Publication of CN116971505A publication Critical patent/CN116971505A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7608—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/76—Use at unusual temperatures, e.g. sub-zero
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Building Environments (AREA)

Abstract

The invention relates to the technical field of wall body energy conservation, and provides an ultra-low energy consumption building enclosure wall body for a high-rise building and a construction method thereof. The ultra-low energy consumption building enclosure wall for the high-rise building and the construction method thereof are used for solving the defect of falling risk caused by the extremely large thickening of the outer heat-insulating layer in the prior art, realizing heat insulation of the ultra-low energy consumption wall and avoiding hidden danger of falling of the outer heat insulation; on the premise of not setting external heat preservation, the ultra-low energy consumption heat preservation is realized, compared with the existing passive ultra-low energy consumption external wall external heat preservation thin plastering system, on the premise of the same thickness, the heat transfer coefficient is reduced by 25%, and the wall facing is easy to maintain.

Description

Ultra-low energy consumption building enclosure wall for high-rise building and construction method
Technical Field
The invention relates to the technical field of wall body energy conservation, in particular to an ultra-low energy consumption building enclosure wall body for a high-rise building and a construction method.
Background
The existing passive ultra-low energy consumption wall system has hidden trouble when being applied to high-rise buildings, such as the fireproof performance of Wen Zhucai polystyrene boards in external heat preservation and the safety of rock wool external heat preservation, so that the safety and durability of the heavy external heat preservation layer required by ultra-low energy consumption applied to the high-rise buildings become the technical difficulty of the passive ultra-low energy consumption external enclosure wall, and especially the falling risk caused by the extremely large thickening of the external heat preservation layer is more a problem that the passive ultra-low energy consumption building is further promoted and applied to the high-rise buildings in an urgent need, and meanwhile, the maintenance of the wall facing is one of pain points of the high-rise buildings.
Disclosure of Invention
The invention provides an ultralow-energy-consumption building enclosure wall for a high-rise building and a construction method thereof, which are used for solving the defect of falling risk caused by the extremely large thickening of an external heat-insulating layer in the existing ultralow-energy-consumption technology, realizing the heat insulation of the ultralow-energy-consumption building enclosure wall, avoiding the hidden danger of falling of external heat insulation, and ensuring that a wall facing is easy to maintain.
The invention provides an ultralow energy consumption building wall for a high-rise building, which comprises an outer wall body, an inner wall body, a passive window, a heat shielding layer and a binding heat insulation layer, wherein the binding heat insulation layer, the heat shielding layer and the passive window are arranged between the outer wall body and the inner wall body, and the outer wall body and the inner wall body are autoclaved aerated concrete plates.
According to the ultra-low energy consumption building wall for the high-rise building, the passive window is positioned in the binding heat-insulating layer, and the inner side of the passive window is flush with the inner side of the binding heat-insulating layer.
According to the ultra-low energy consumption building wall for the high-rise building, the outer wall body is provided with the first hole, the inner wall body is provided with the second hole, a protection area and a hole area are formed between the outer wall body and the inner wall body, the passive window is arranged in the hole area, and the upper end and two side parts of the passive window extend to the protection area; the penetration depth of the passive window is 20-30mm.
The ultra-low energy consumption building wall for the high-rise building, provided by the invention, further comprises a support beam column, wherein the support beam column is arranged at the second hole and is used for supporting the passive window and connecting the inner wall; the outer elevation of the support beam column is flush with the outer side of the inner wall body.
According to the ultra-low energy consumption building wall for the high-rise building, the heat conduction coefficient of the heat shielding layer is smaller than or equal to 0.05W/m.K, and the heat shielding layer is an aluminum foil composite fiber layer.
According to the ultra-low energy consumption building wall for the high-rise building, the outer wall is prepared by taking coal gangue activated powder and sand as mixed siliceous materials, wherein the coal gangue activated powder accounts for 40% -50% of the total siliceous materials, and the regulator accounts for 0.7% -1.5% of the total material; the gangue activating material is prepared by calcining gangue at 850 ℃ and ball milling to 0.045-0.08mm, and the regulator is a high polymer resin mixture.
According to the ultra-low energy consumption building wall for the high-rise building, the volume weight of the inner wall is 400kg/m 3 ～650kg/m 3 Compressive strength is not lower than 3.0MPa; the volume weight of the outer wall body is 480kg/m 3 ～650kg/m 3 Compressive strength is not lower than 3.5MPa; the exterior wall body can resist freeze thawing cycle for 50 times, the mass loss after freezing is not more than 1%, and the strength after freeze thawing is not less than 3.5MPa.
According to the ultra-low energy consumption building wall for the high-rise building, the binding heat-insulating layer comprises rock wool and a nano silicon dioxide composite fiber layer, and the rock wool is arranged on two sides of the nano silicon dioxide composite fiber layer; a cushion layer is arranged on one side of the binding heat-insulating layer, which is close to the inner wall body; the heat conductivity coefficient of the binding heat-insulating layer is not more than 0.03W/m.K.
The invention also provides a construction method, which comprises the following steps:
step one: attaching a support Liang Zhuan to the main structure and attaching the passive window to the support beam;
step two: and hanging the outer wall body outside the main body structure, and sequentially arranging the heat shielding layer, the binding heat insulation layer and the inner wall body inside the main body structure.
According to the ultra-low energy consumption building wall for the high-rise building,
in the first step, the interface of the inner wall body positioned around the supporting beam column is treated;
in the second step, the heat shielding layer is connected with the outer wall body through shooting nails, polyurethane glue is adopted to bond the heat shielding layer with the binding heat insulation layer, and the outer wall body and the inner wall body are distributed in a staggered manner; and a waterproof steam barrier film and a waterproof steam permeable film are stuck around the passive window. The waterproof vapor-permeable membrane completely covers the mounting node and the supporting beam column of the passive window, and the tail end of the waterproof vapor-permeable membrane is stuck in a gap between the supporting beam column and an adjacent inner wall body thereof;
performing airtight treatment on the wall;
the step of performing the airtight treatment on the wall body comprises the following steps: the outer wall body (100) is formed by bonding a plurality of strips, the outer side of the outer wall body (100) is sealed by sealant, and then the outer side of gaps among the strips is covered with mesh plastering for secondary sealing; the inner wall body (200) is formed by bonding a plurality of strips, the indoor side of the inner wall body (200) is tightly caulking the indoor side of a gap between the strips by using caulking agents, and after the caulking agent is leveled with the inner wall body (200), the indoor side of the gap is plugged by using a waterproof steam barrier.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The ultra-low energy consumption building wall for the high-rise building comprises an outer wall body, an inner wall body, a passive window, a heat shielding layer and a binding heat insulation layer, wherein the binding heat insulation layer, the heat shielding layer and the passive window are arranged between the outer wall body and the inner wall body, so that a heat bridge effect is reduced, and a heat insulation effect is achieved; the outer wall body and the inner wall body are autoclaved aerated concrete slabs; on the premise of not setting external heat preservation, the wall body with ultralow energy consumption is realized to preserve heat, and compared with the existing passive external wall external heat preservation thin plastering system with ultralow energy consumption, the heat transfer coefficient is reduced by 25% on the premise of the same thickness, meanwhile, the risk of falling off of an external heat preservation layer is avoided, the wall body is provided with colors, facing color treatment is not needed, and the wall body is easy to maintain.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of an ultra-low energy consumption building wall for a high-rise building according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a binding heat-insulating layer of an ultra-low energy consumption building wall for a high-rise building, which is provided by the embodiment of the invention;
fig. 3 is another schematic structural view of an ultra-low energy consumption building wall for a high-rise building according to an embodiment of the present invention.
Reference numerals:
100. an outer wall; 110. a first opening;
200. an inner wall; 210. a second opening;
300. a passive window; 310. waterproof vapor barrier film; 320. waterproof vapor-permeable membrane;
400. supporting the beam column; 410. a heat insulating mat; 420. stainless steel connectors;
500. binding an insulating layer; 510. rock wool; 520. a nano silicon dioxide composite fiber layer; 530. a cushion layer;
600. and a heat shielding layer.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment provides an ultra-low energy consumption building wall for a high-rise building, as shown in fig. 1, comprising an outer wall 100, an inner wall 200, a passive window 300, a support beam column 400 and a binding heat-insulating layer 500, wherein the binding heat-insulating layer 500 and the passive window 300 are both arranged between the outer wall 100 and the inner wall 200, the binding heat-insulating layer 500 has a main heat-insulating effect, and the passive window 300 is both arranged between the outer wall 100 and the inner wall 200 and is tightly attached to the outer vertical surface of the support beam column, namely, the inner side of the passive window is flush with the inner side of the binding heat-insulating layer, so that the heat bridge effect can be reduced, the heat loss is avoided, and the good heat insulation effect is achieved; the outer wall body 100 and the inner wall body 200 are autoclaved aerated concrete plates, and have the advantages of high strength, light weight, heat preservation, heat insulation, economy and the like; the inner wall 200 and the outer wall 100 are arranged in staggered joint, so that through joints are effectively avoided, leakage is prevented, and the heat preservation effect is improved.
The embodiment of the invention realizes ultralow energy consumption heat preservation on the premise of not arranging external heat preservation, and compared with the existing passive ultralow energy consumption external wall external heat preservation thin plastering system, the heat transfer coefficient is reduced by 25% on the premise of the same thickness, and meanwhile, the risk of falling off of an external heat preservation layer is avoided.
Preferably, the passive window 300 is located inside the binding heat insulation layer 500, and further cuts off the thermal bridge, so as to achieve the heat insulation effect and meet the requirement of ultra-low energy consumption; the thermal conductivity coefficient of the binding thermal insulation layer 500 is not more than 0.03W/m.K, so as to achieve the thermal insulation effect, and the binding thermal insulation layer is a class A fireproof material; the outer wall body 100 is provided with a first hole 110, the inner wall body (200) is provided with a second hole (210), a protection area and a hole area are formed between the outer wall body (100) and the inner wall body (200), the passive window (300) is arranged in the hole area, the inner side of the passive window is flush with the inner side of the binding heat insulation layer, and the passive window (300) is partially extended to the protection area, so that heat loss can be avoided while the passive window 300 is fixed, the thermal bridge between the junction of the passive window 300 and a wall body and the thermal bridge of a window profile can be effectively blocked, the thermal bridge effect is further reduced, and the energy saving requirement of 92% and above can be met; specifically, the passive window 300 is located in the hole area, and the upper side, the left side and the right side of the passive window 300 respectively extend into the corresponding protection areas, and the extending length is 20-30 cm, that is, the distance between the three edges of the passive window 300 and the first hole 110 is 20-30mm.
Further, as shown in fig. 2, the binding thermal insulation layer 500 includes a rock wool 510 and a nano silicon dioxide composite fiber layer 520, the nano silicon dioxide composite fiber layer 520 is disposed in the middle layer, and the rock wool 510 is disposed at two sides of the nano silicon dioxide composite fiber layer 520, so as to improve the thermal insulation effect; the thicknesses of the rock wool 510 and the nano silicon dioxide composite fiber layer 520 are set according to the thermal conductivity requirement, and the embodiment of the invention does not limit the thicknesses of the rock wool 510 and the nano silicon dioxide composite fiber layer 520; a cushion layer 530 is arranged on one side of the binding heat-insulating layer 500 close to the inner wall 200, and the cushion layer 530 is made of aluminum foil or polypropylene resin cloth, so as to achieve the effects of isolating water vapor and reducing heat loss; in this embodiment, the cushion layer 530 is polypropylene resin cloth; specifically, the binding heat-insulating layer 500 is composed of a plurality of binding heat-insulating blocks, and the plurality of binding heat-insulating blocks are tiled on the indoor side of the heat-shielding layer 600 to form the binding heat-insulating layer 500; the ligature heat preservation piece comprises rock wool piece and nano silicon dioxide composite fiber piece, and the rock wool piece sets up in nano silicon dioxide composite fiber piece's both sides, and ligature area of ligature heat preservation piece is less than ligature heat preservation piece's whole area to ligature heat preservation piece leaves the not ligature part that is fibrous all around, so that forms better seam effect between the ligature heat preservation piece, strengthens thermal insulation performance.
Preferably, the heat insulation structure further comprises a heat shielding layer 600, wherein the heat shielding layer 600 is arranged between the outer wall body 100 and the inner wall body 200, and the heat conduction coefficient of the heat shielding layer 600 is less than or equal to 0.05W/m.K, so that the heat insulation effect is improved, and high energy conservation and consumption reduction are realized; the heat shielding layer 600 is an aluminum foil composite fiber layer, which can enhance heat insulation performance and isolate heat transmission from the dimension of heat radiation, thereby achieving the effects of heat insulation and reducing temperature stress; specifically, the heat shielding layer 600 is a double-layer aluminum foil composite fiber micro-bubble layer, and the double-layer and micro-bubble structure further achieves the heat insulation effect; the heat shielding layer 600 and the binding heat insulation layer 500 are bonded by polyurethane adhesive, and the polyurethane adhesive has the advantages of single component, room temperature moisture curing, low volatile smell and the like; the heat shielding layer 600 is in nail-shooting connection with the outer wall body 100, so as to improve the connection firmness.
Preferably, the inner wall 200 is provided with a second hole 210, the second hole 210 corresponds to the first hole 110, and the first hole 110 is smaller than the second hole 210; the support beam column 400 is disposed at the second hole 210, and the support beam column 400 is configured to support the passive window 300 and connect the inner wall 200, so that the passive window 300 is suspended in the binding insulation layer 500, and no connection piece is connected between the passive window 300 and the inner wall 200, thereby reducing the influence of the window on the wall; as shown in fig. 3, a heat insulation pad 410 is provided between the support beam 400 and the passive window 300 during installation, so as to further cut off the thermal bridge; the embodiment further includes a stainless steel connector 420, the support beam column 400 is a square steel column, and the passive window 300 and the support beam column 400 are connected by the stainless steel connector 420; the stainless steel material can prevent rust, reduce heat conduction and prolong the service life; generally, the stainless steel connector 420 is L-shaped, and the embodiment of the present invention is not limited to the specific shape of the stainless steel connector 420; the portion of the inner wall 200 around the support beam 400 needs to be subjected to interface treatment so as not to affect the bonding strength.
The outer side of the inner wall 200 is the side of the inner wall 200 close to the outer wall 100, and the inner side of the inner wall 200 is the side of the inner wall 200 far from the outer wall 100; the inner wall 200 has a wall plate and an extension plate 220, and an installation space for installing the support beam column 400 is formed between the extension plate 220 and the wall plate, which is beneficial to fixing the support beam column 400; specifically, the outer vertical surface of the supporting beam column 400 is flush with the outer side of the inner wall 200, so that the supporting beam column 400 is convenient to connect with the passive window 300, the passive window is tightly attached to the supporting beam column, the inner side of the passive window is flush with the inner side of the binding heat-insulating layer, and meanwhile, a thermal bridge is further cut off, and the heat-insulating effect is enhanced; the outer elevation refers to an interface of an object and an external space of the object which are in direct contact, and an image and a forming mode of the interface; the outer vertical surface of the support beam column 400 means that the support beam column 400 is close to the vertical surface of the outer wall 100.
The embodiment further includes a waterproof vapor-barrier film 310 and a waterproof vapor-permeable film 320, the waterproof vapor-barrier film 310 is adhered around the passive window 300, the waterproof vapor-barrier film 310 extends out of the passive window 300 in the indoor direction to cover the gap between the epitaxial plate 220 and the wall plate, and the waterproof vapor-barrier performance of the passive window and the adjacent wall is improved, so as to ensure the integral vapor-barrier effect of the window, the support beam column 400 and the inner wall 200; the waterproof and vapor-permeable membrane 320 completely wraps the periphery of the passive window 300 from the side of the passive window 300 near the outdoor, and wraps the connecting piece and the support beam column 400; specifically, the waterproof vapor-permeable membrane 320 is disposed on the outer surface of the passive window 300, and the tail end of the membrane material is adhered in the gap between the support beam column 400 and the inner wall 200, so as to achieve the overall waterproof effect of the passive window.
Preferably, the outer wall body 100 is prepared by taking coal gangue activated powder and sand as mixed siliceous materials, wherein the coal gangue activated powder accounts for 40% -50% of the total siliceous materials, and the regulator accounts for 0.7% -1.5% of the total material, so that the outer wall body 100 is light pink, the effect of modifying the wall surface is achieved, and meanwhile, the formed light pink wall surface has no fading and no shedding risk, and no later maintenance work of the outer wall facing is required; while improving durability of the outer wall 100; the gangue activating material is prepared by calcining gangue at 850 ℃ and ball milling to 0.045-0.08mm so as to be mixed with other dry materials and improve the reactivity; furthermore, the coal gangue is solid waste discharged in the coal mining process and the coal washing process, the materials are easy to obtain, and meanwhile, the solid waste can be utilized by utilizing the coal gangue, so that the effect of reducing the waste discharge is achieved; the regulator is a polymer resin mixture.
In order to ensure that the external wall body 100 has the minimum volume weight under enough wind load resistance, i.e. the weight of the wall body is reduced, the volume weight of the external wall body 100 is preferably 480kg/m 3 ～650kg/m 3 The compression strength is not lower than 3.5MPa, the outer wall body 100 can resist freeze thawing cycle for 50 times, the mass loss after freezing is not more than 1%, the strength after freeze thawing is not lower than 3.5MPa, and the volume weight of the inner wall body 200 is 400kg/m 3 ～650kg/m 3 Compressive strength is not lower than 3.0MPa; the minimum weight and the optimal durable effect of the wall body are realized.
The invention provides a construction method, which comprises the following steps:
step one: mounting the support beam column 400 on a main structure, and connecting the passive window 300 to the support beam column 400;
step two: the outer wall body 100 is externally hung on a main structure, and the heat shielding layer 600, the binding heat insulation layer 500 and the inner wall body 200 are sequentially arranged in the main structure.
The passive window 300 of the embodiment of the invention is arranged between the outer wall body 100 and the inner wall body 200, if the outer wall plate 100 is installed first, the passive window 300 cannot be installed, if the inner wall plate 200 is installed first, the outer wall plate 100 is difficult to install, and the embodiment of the invention adopts the method that the passive window 300 is installed first, then the outer wall body 100, the heat shielding layer 600, the binding heat insulation layer 500 and the inner wall body 200 are installed, and other structures can be installed indoors except the installation of the outer wall body 100, so that the safety and convenience of high-rise building construction are improved.
Preferably, in the first step, the inner wall 200 located around the support beam 400 is subjected to interface treatment;
in the second step, the heat shielding layer 600 is connected with the outer wall body 100 through nail shooting, polyurethane glue is adopted to bond the heat shielding layer 600 and the binding heat insulation layer 500, and the outer wall body 100 and the inner wall body 200 are arranged in a staggered manner; a waterproof vapor barrier 310 and a waterproof vapor permeable film 320 are adhered to the periphery of the passive window 300, the waterproof vapor permeable film 320 completely covers the mounting node and the support beam column 400 of the passive window 300, and the tail end of the waterproof vapor permeable film is adhered to a gap between the support beam column 400 and the inner wall 200;
performing airtight treatment on the wall;
the step of performing the airtight treatment on the wall body comprises the following steps: the outer wall body (100) is formed by bonding a plurality of strips, the outer side of the outer wall body (100) is sealed by sealant, and then the outer side of gaps among the strips is covered with mesh plastering for secondary sealing; the inner wall body (200) is formed by bonding a plurality of strips, the indoor side of the inner wall body (200) is tightly caulking the indoor side of a gap between the strips by using caulking agents, and after the caulking agent is leveled with the inner wall body (200), the indoor side of the gap is plugged by using a waterproof steam barrier, and the indoor side wall surface of the whole inner wall body does not need to be provided with a mortar airtight layer, so that the ultra-low energy consumption building air tightness requirement is met.
The embodiment of the invention provides an ultra-low energy consumption building enclosure wall for a high-rise building and a construction method thereof, wherein a binding heat-insulating layer 500 is arranged between an outer wall body 100 and an inner wall body 200 through a passive window 300, so that the ultra-low energy consumption heat-insulating performance is achieved on the premise of no risk of external heat insulation falling, and compared with the existing passive ultra-low energy consumption external wall external heat-insulating thin plastering system, the heat transfer coefficient is reduced by 25% on the premise of the same thickness, and the risk of external heat-insulating layer falling is avoided; the energy-saving requirement of 92% energy saving and above can be achieved; the embodiment of the invention adopts all inorganic materials, and the wall body has the advantages of fire prevention class A and the same service life as a building; the ultra-low energy consumption building wall body for the high-rise building has no board seam leakage and cracking risk, and is particularly suitable for high-rise passive ultra-low energy consumption buildings; the outer wall 100 of this embodiment is prepared from gangue activated powder and sand as mixed siliceous materials, has no facing fading, is easy to maintain, fully utilizes waste solid materials, and is convenient to popularize.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides an ultralow energy consumption building wall for high-rise building, its characterized in that includes outer wall body (100), interior wall body (200), passive window (300), heat shield layer (600) and ligature heat preservation (500), ligature heat preservation (500) heat shield layer (600) with passive window (300) all set up outer wall body (100) with interior wall body (200) between, outer wall body (100) with interior wall body (200) are autoclaved aerated concrete slab.
2. The ultra-low energy consumption building wall for high-rise buildings according to claim 1, wherein the passive window (300) is located inside the binding heat insulation layer (500), and the inner side of the passive window is flush with the inner side of the binding heat insulation layer.
3. The ultra-low energy consumption building wall for high-rise buildings according to claim 1, wherein the outer wall body (100) is provided with a first hole (110), the inner wall body (200) is provided with a second hole (210), a protection area and a hole area are formed between the outer wall body (100) and the inner wall body (200), the passive window (300) is arranged in the hole area, and the passive window (300) is partially extended to the protection area; the penetration depth of the passive window (300) is 20-30mm.
4. The ultra-low energy consumption building wall for high-rise buildings according to claim 3, further comprising a supporting beam column (400), wherein the supporting beam column (400) is disposed at the second hole (210), and the supporting beam column (400) is used for supporting the passive window (300) and connecting the inner wall body (200); the outer vertical surface of the supporting beam column (400) is flush with the outer side of the inner wall body (200).
5. The ultra-low energy consumption building wall for high-rise buildings according to any of the claims 1 to 4, wherein the thermal conductivity of the thermal shielding layer (600) is less than or equal to 0.05W/m-K, and the thermal shielding layer (600) is an aluminum foil composite fiber layer.
6. The ultra-low energy consumption building wall for high-rise buildings according to any one of claims 1 to 4, wherein the outer wall body (100) is prepared by mixing gangue activated powder and sand as siliceous materials, the gangue activated powder accounts for 40% -50% of the total siliceous materials, and the regulator accounts for 0.7% -1.5% of the total material; the gangue activating material is prepared by calcining gangue at 850 ℃ and ball milling to 0.045-0.08mm, and the regulator is a high polymer resin mixture.
7. Ultra-low energy consumption building wall for high-rise buildings according to any of the claims 1-4, characterized in that the volume weight of the inner wall (200) is 400kg/m 3 ～650kg/m 3 Compressive strength is not lower than 3.0MPa; the volume weight of the outer wall body (100) is 480kg/m 3 ～650kg/m 3 Compressive strength is not lower than 3.5MPa; the outer wall (100) can resist freeze thawing cycle for 50 times, the mass loss after freezing is not more than 1%, and the strength after freezing and thawing is not less than 3.5MPa.
8. The ultra-low energy consumption building wall for high-rise buildings according to any one of claims 1 to 4, wherein said binding insulation layer (500) comprises rock wool (510) and a nano-silica composite fiber layer (520), said rock wool (510) being disposed on both sides of said nano-silica composite fiber layer (520); a cushion layer (530) is arranged on one side of the binding heat-insulating layer (500) close to the inner wall body (200); the heat conductivity coefficient of the binding heat-insulating layer (500) is not more than 0.03W/m.K.
9. The construction method is characterized by comprising the following steps of:
step one: mounting a support beam column (400) on a main structure, and connecting a passive window (300) to the support beam column (400);
step two: the outer wall body (100) is externally hung on a main body structure, and the heat shielding layer (600), the binding heat insulation layer (500) and the inner wall body (200) are sequentially arranged in the main body structure.
10. The construction method according to claim 9, wherein,
in the first step, the interface of the inner wall body (200) positioned around the support beam column (400) is treated;
in the second step, the heat shielding layer (600) is connected with the outer wall body (100) through shooting nails, polyurethane glue is adopted to bond the heat shielding layer (600) and the binding heat insulation layer (500), and the outer wall body (100) and the inner wall body (200) are arranged in a staggered manner; a waterproof steam barrier film (310) and a waterproof steam-permeable film (320) are stuck to the periphery of the passive window (300), the waterproof steam-permeable film (320) completely covers the mounting node and the supporting beam column (400) of the passive window (300), and the tail end of the waterproof steam-permeable film is stuck to a gap between the supporting beam column (400) and the inner wall body (200);
performing airtight treatment on the wall;
the step of performing the airtight treatment on the wall body comprises the following steps: the outer wall body (100) is formed by bonding a plurality of strips, the outer side of the outer wall body (100) is sealed by sealant, and then the outer side of gaps among the strips is covered with mesh plastering for secondary sealing; the inner wall body (200) is formed by bonding a plurality of strips, the indoor side of the inner wall body (200) is tightly caulking the indoor side of a gap between the strips by using caulking agents, and after the caulking agent is leveled with the inner wall body (200), the indoor side of the gap is plugged by using a waterproof steam barrier.
CN202310735073.4A 2023-06-20 2023-06-20 Ultra-low energy consumption building enclosure wall for high-rise building and construction method Pending CN116971505A (en)

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CN202310735073.4A CN116971505A (en) 2023-06-20 2023-06-20 Ultra-low energy consumption building enclosure wall for high-rise building and construction method

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Application Number Priority Date Filing Date Title
CN202310735073.4A CN116971505A (en) 2023-06-20 2023-06-20 Ultra-low energy consumption building enclosure wall for high-rise building and construction method

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CN116971505A true CN116971505A (en) 2023-10-31

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