CN211816897U

CN211816897U - Overhanging structure of ultra-low energy consumption CLT building

Info

Publication number: CN211816897U
Application number: CN202020211370.0U
Authority: CN
Inventors: 康曦
Original assignee: Duolou Mingdi Construction Technology Co Ltd
Current assignee: Duolou Mingdi Construction Technology Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-10-30
Anticipated expiration: 2030-02-25

Abstract

The utility model discloses a structure of encorbelmenting of ultralow energy consumption CLT building, include along horizontal extension encorbelmenting the floor and along the wall of encorbelmenting of longitudinal extension, encorbelmenting the floor and stretching out outside the building main part and be connected with the wall of encorbelmenting, encorbelmenting the floor and being equipped with first heat preservation, first CLT bearing plate and second heat preservation in proper order, the wall of encorbelmenting is equipped with third heat preservation, second CLT bearing plate and fourth heat preservation in proper order, and first CLT bearing plate and second CLT bearing plate are solid wood panel. So set up, all CLT bearing plates both sides all set up the heat preservation in the structure of encorbelmenting, combine the peculiar thermal insulation performance of timber itself, form triple heat preservation effect in building structure to improved the thermal-insulated heat preservation ability of wooden building, reduce and carry out the heat exchange with the external world, reduce the building energy consumption, energy-conserving heat preservation, and CLT bearing plate receives the heat preservation cladding, isolated with the external world, greatly reduced the appearance of cold bridge, the protection bearing layer avoids harm, thereby the life of CLT building has been prolonged.

Description

Overhanging structure of ultra-low energy consumption CLT building

Technical Field

The utility model relates to a building technical field, more specifically say, relate to a structure of encorbelmenting of ultralow energy consumption CLT building.

Background

With the progress of society and the development of economy, wood structure buildings are more and more favored by people. A building is composed of a plurality of important node structures, wherein the overhanging structure is one of the important nodes and is mostly present at a position protruding out of the building body, such as a balcony. The overhanging structure of the existing wood structure building is that wood is directly taken to make a wall body, and the inner side is provided with a heat insulation material. But the heat preservation effect is poor like this to timber receives direct incidence of sunshine, and overheated deformation produces cold bridge phenomenon easily, seriously harms building load-bearing structure, shortens building life. Therefore, the overhanging structure of the novel wood structure building needs to be provided so as to meet the use requirement of the wood structure building during construction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structure of encorbelmenting of ultralow energy consumption CLT building to solve the problem that proposes in the above-mentioned background art.

The utility model aims at realizing through the following technical scheme:

the utility model provides an overhanging structure of an ultra-low energy consumption CLT building, which comprises an overhanging floor slab extending along the transverse direction and connected with a building main body and an overhanging wall extending along the longitudinal direction and intersecting and connecting with the overhanging floor slab, wherein the overhanging floor slab extends out of the building main body; the overhanging floor slab comprises a first CLT bearing plate connected with the building main body, the overhanging wall comprises a second CLT bearing plate which is intersected and connected with the first CLT bearing plate, and the first CLT bearing plate and the second CLT bearing plate are all solid wood plates formed by orthogonal assembly of at least three layers of solid wood sawn materials or structural composite plates through gluing; the cantilever floor slab further comprises a first heat preservation layer and a second heat preservation layer which are arranged on two sides of the first CLT bearing plate respectively, and the cantilever wall further comprises a third heat preservation layer and a fourth heat preservation layer which are arranged on two sides of the second CLT bearing plate respectively.

Preferably, light mortar is filled between the first CLT bearing plate and the first heat-insulating layer, a first protective layer is laid at the contact position of the light mortar and the first CLT bearing plate, and a double-layer gypsum board, a second protective layer and a floor are sequentially arranged on one side, away from the first CLT bearing plate, of the first heat-insulating layer.

Preferably, the third heat-insulating layer comprises a wood keel frame connected with the second CLT bearing plate and a heat-insulating material filled in the wood keel frame, and an inner facing is arranged on one side, away from the second CLT bearing plate, of the wood keel frame.

Preferably, a wall surface radiation system for adjusting the indoor temperature is further arranged between the inner facing and the third heat insulation layer.

Preferably, an external multilayer board is arranged on one side, away from the second CLT bearing board, of the fourth heat-insulating layer, and a waterproof breathable film is arranged between the external multilayer board and the fourth heat-insulating layer.

Preferably, the fourth insulating layer is at least two layers, and the second insulating layer located on the first CLT bearing plate and extending out of the building main body is at least two layers.

Preferably, the window is arranged on the cantilever wall, the window comprises a window frame connected with the cantilever wall and glass arranged in the window frame, and a sealing structure is arranged at the joint position of the window frame and the cantilever wall.

Preferably, a separate blind capable of shading the glass is also included for providing shade protection.

Preferably, the first heat preservation layer is an impact-resistant soundproof cotton board.

Preferably, the first CLT bearing plate and the second CLT bearing plate are vertically arranged and fixedly connected through a fastener, the fastener penetrates through the first CLT bearing plate and extends into the second CLT bearing plate, and a sealing structure is arranged at a corner joint position formed by the first CLT bearing plate and the second CLT bearing plate.

In the technical scheme provided by the utility model, the overhanging structure of the ultra-low energy consumption CLT building comprises an overhanging floor slab which extends along the transverse direction and is connected with the building main body and an overhanging wall which extends along the longitudinal direction, intersects with the overhanging floor slab and is connected with the overhanging floor slab, wherein the overhanging floor slab extends out of the building main body; the overhanging floor slab comprises a first CLT bearing plate connected with the building main body, the overhanging wall comprises a second CLT bearing plate which is intersected and connected with the first CLT bearing plate, and the first CLT bearing plate and the second CLT bearing plate are all solid wood plates formed by orthogonal assembly of at least three layers of solid wood sawn materials or structural composite plates; the overhanging floor slab further comprises a first heat preservation layer and a second heat preservation layer which are respectively arranged on two sides of the first CLT bearing plate, and the overhanging wall further comprises a third heat preservation layer and a fourth heat preservation layer which are respectively arranged on two sides of the second CLT bearing plate. So set up, the both sides of all CLT bearing plates in the structure of encorbelmenting all set up the heat preservation, combine the peculiar thermal insulation performance of timber itself, form triple heat preservation effect in building structure, thereby improved the thermal-insulated heat preservation ability of wooden building, reduce and carry out the heat exchange with the external world, reduce the building energy consumption, energy-conserving heat preservation, and CLT bearing plate receives the heat preservation cladding, isolated with the external world, greatly reduced the appearance of cold bridge, the protection bearing layer avoids harm, thereby the life of CLT building has been prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an overhanging structure of an ultra-low energy consumption CLT building in an embodiment of the present invention;

fig. 2 is a first schematic structural view of an overhanging wall in the embodiment of the present invention;

fig. 3 is a second schematic structural view of the cantilever wall in the embodiment of the present invention;

fig. 4 is a schematic structural view of an overhanging floor slab in the embodiment of the present invention;

fig. 5 is the overall structure schematic diagram of an ultra-low energy consumption CLT building in the embodiment of the present invention.

In fig. 1-5:

1-overhanging a floor slab; 11-a floor; 12-a second protective layer; 13-double layer gypsum board; 14-a first insulating layer; 15-light mortar; 16-a first protective layer; 17-a first CLT load bearing plate; 18-a second insulating layer; 2-overhanging wall; 21-inner facing; 22-wall radiation system; 23-a third insulating layer; 231-wood keel frame; 232-thermal insulation material; 24-a second CLT load bearing plate; 25-a fourth insulating layer; 26-waterproof breathable film; 27-externally hanging a multilayer board; 3-a building body; 4-a window; 41-window frame; 42-glass; 5-independent shutters; 6-fastening piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

It should be noted that the directions "transverse" and "longitudinal" mentioned herein refer to the arrangement state of the overhanging structure of the ultra-low energy consumption CLT building shown in fig. 1, that is, the left-right direction in the drawing is transverse, and the up-down direction in the drawing is longitudinal.

Referring to fig. 1 to 5, the overhanging structure of a Cross-glued beam (CLT) building provided in this embodiment includes an overhanging floor 1 extending in a transverse direction and connected to a building body 3, and an overhanging wall 2 extending in a longitudinal direction and intersecting and connected to the overhanging floor 1. Fig. 5 is a schematic view of the overall structure of the CLT building according to an embodiment, where a dotted line frame in the figure indicates the position of the overhanging structure, and of course, the external structure of the CLT building is not limited to that shown in fig. 5, and the specific form of the CLT building is designed and constructed according to the actual building drawing. As shown in fig. 1, the left end of the overhanging floor slab 1 is suspended and extends out of the building body 3, and is connected with the overhanging wall 2. The overhanging floor slab 1 comprises a first CLT bearing plate 17 connected with the building main body 3, the overhanging wall 2 comprises a second CLT bearing plate 24 which is intersected and connected with the first CLT bearing plate 17, and the first CLT bearing plate 17 and the second CLT bearing plate 24 are all solid wood plates formed by gluing at least three layers of solid wood sawn materials or structural composite plate orthogonal assembly. The structural composite boards used therein include single Board Laminated Lumber (LVL), batten Oriented Laminated Lumber (LSL), Oriented Strand Board (OSL), and Oriented Strand Board (OSB), etc. CLT is a new wood building material in recent years, which adopts a factory prefabricated engineering wood product formed by orthogonally stacking a plurality of layers of battens and pressing the battens into a rectangular, linear and planar plate form through structural adhesives, the area and the thickness of the factory prefabricated engineering wood product can be customized, and corresponding parameters can be obtained by calculation according to structural strength. The large CLT can be directly used as a wall, a floor and the like of a building after being cut, and the construction efficiency of the engineering can be greatly improved. The engineering wood material is characterized in that the wood with the specification that the transverse grains and the vertical grains are arranged in a staggered mode is glued together to achieve better strength, and the engineering wood material can be used for replacing a concrete material to build houses due to extremely high strength and fire resistance. The CLT material is more excellent than a concrete material in the aspects of environmental protection (low carbon/solid carbon), high weight ratio, anti-seismic elasticity, heat insulation and preservation performance, assembly performance, recycle, sustainability and the like. The overhanging floor slab 1 further comprises a first heat-insulating layer 14 and a second heat-insulating layer 18 which are respectively arranged on two sides of the first CLT bearing plate 17, and the overhanging wall 2 further comprises a third heat-insulating layer 23 and a fourth heat-insulating layer 25 which are respectively arranged on two sides of the second CLT bearing plate 24. Specifically, as shown in fig. 1, a first insulating layer 14 is disposed above the first CLT bearing plate 17, a second insulating layer 18 is disposed below the first CLT bearing plate, a third insulating layer 23 is disposed on the right side of the second CLT bearing plate 24, and a fourth insulating layer 25 is disposed on the left side of the second CLT bearing plate.

So set up, the both sides of all CLT bearing plates in the structure of encorbelmenting all set up the heat preservation, combine the peculiar thermal insulation performance of timber itself, form triple heat preservation effect in building structure, thereby the thermal-insulated heat preservation ability of timber building has been improved, reduce and carry out the heat exchange with the external world, reduce the building energy consumption, energy-conserving heat preservation, and CLT bearing plate receives the heat preservation cladding, isolated with the external world, avoid timber to overheat and warp, effectively play thermal-insulated guard action, simultaneously still greatly reduced the appearance of cold bridge. In the prior art, because the outer side of the wood is not provided with the heat-insulating layer, condensation, frosting and icing are easily generated on the wood when the wood exchanges heat with the outside, so that the heat-insulating material on the inner side is affected with damp and mildewed to lose efficacy, and even a building structure layer is damaged. And the heat-insulating layers are covered inside and outside the CLT bearing plate in the application, scientific node structure design is carried out, cold bridges are reduced, the bearing layer is protected from being damaged, and therefore the service life of the CLT building is prolonged. The CLT bearing plate is a solid wood plate, has extremely high strength, can completely replace concrete materials to form a green building, and realizes pollution-free, recyclable and sustainable development in the building industry.

In the embodiment, the light mortar 15 is filled between the first CLT bearing plate 17 and the first heat preservation layer 14, the light mortar 15 has good cohesiveness after being mixed with water, is easy to construct, is very effective for blocking heat transfer and preventing fire from spreading due to porosity and extremely low heat conductivity, has high strength and lighter weight, and is suitable for being used at overhanging structures. The first protective layer 16 is laid at the contact position of the light mortar 15 and the first CLT bearing plate 17, and can be made of isolation protective materials commonly used in building construction, such as pure aluminum foil, namely an isolation protective layer made of aluminum oxide, so that water in mortar plastering can be prevented from penetrating into the CLT bearing plate to damage a bearing structure. The first heat preservation layer 14 is provided with a double-layer gypsum board 13, a second protection layer 12 and a floor 11 in sequence on the side away from the first CLT bearing plate 17, namely above the first CLT bearing plate. Because the overhanging floor slab 1 is suspended, the double-layer gypsum board 13 has better crack resistance and moisture resistance, the strength for preventing cracking can be improved when the whole structure is deformed, the water vapor diffusion can be effectively prevented, the moisture-proof effect is very good, the fireproof performance is enhanced after the double-layer structure is adopted, and the sound insulation effect is increased. During actual construction, a layer of white protective film is generally paved on the double-layer gypsum board to serve as a protective layer, namely a ground mat, so that the effects of moisture insulation and ground surface leveling are achieved, and the noise caused by friction between the floor and the double-layer gypsum board during walking can be avoided. The choice of floor 11 may be determined by factors such as architectural design style and customer preference.

Because there is often the personnel to walk on the floor 1 of encorbelmenting, consequently in the embodiment of the utility model discloses a specific embodiment, first heat preservation 14 is the soundproof cotton board that shocks resistance. Can completely cut off sound transmission like this, build a comfortable quiet indoor environment, protect individual privacy, still have thermal-insulated heat preservation, fire-retardant dampproofing advantage, effectively play the heat preservation effect, utilize its better shock resistance effectively to improve the floor quality of encorbelmenting simultaneously, increase of service life. In addition, as shown in fig. 1, the right end of the overhanging floor 1 is extended into the building body 3, and the lower side thereof can be used as a roof of the lower space, so that a gypsum board and an interior surface are sequentially installed below the second insulating layer 18 as a ceiling. As shown in E in fig. 4, the suspended ceiling is fixedly connected with the first CLT bearing plate 17 through an aluminum support, the aluminum support penetrates through the second insulating layer 18 and is fixed through a special fastening screw, and a sound insulation strip is placed between the aluminum support and the first CLT bearing plate 17, so that on one hand, the risk of sound transmission at the joint of the components is prevented, on the other hand, a sealing effect is also achieved, and the building structure is guaranteed to have good air tightness.

As shown in fig. 2, the third insulating layer 23 includes a wood keel frame 231 connected to the second CLT bearing plate 24 and an insulating material 232 filled in the wood keel frame 231, and an inner facing 21 is disposed on a side of the wood keel frame 231 away from the second CLT bearing plate 24. The wood keel frame 231 is formed by wood keels arranged at intervals to form a cavity, the wood keels are connected with the main bearing structure, and heat-insulating materials such as heat-insulating rock wool or glass wool and the like are filled in the cavity. The inner facing 21 can be made of fireproof gypsum board or inner hanging board, the fireproof gypsum board not only has the characteristics of sound insulation, heat preservation, light weight, high strength, small shrinkage rate and the like of common paper-faced gypsum board, but also has higher fireproof performance, the fireproof time is longer than one hour, if a fire disaster happens, the fire can be effectively prevented from spreading, and precious time is won for escape. The interior cladding is the building construction common material, can decorate indoor wall, can play effects such as fire prevention, sound insulation again. Set up like this, a work cavity is formed to the third insulation layer, not only plays the heat preservation effect, can also let pipeline etc. pass through in the insulation material, avoids destroying CLT bearing plate or interior veneer, walks the line convenient and reliable, does not influence bearing wall structure, keeps interior veneer whole pleasing to the eye.

And a wall surface radiation system 22 for regulating the indoor temperature is also arranged between the inner facing 21 and the third insulating layer 23. The wall surface radiation system 22 can be fixedly connected to the wood keel frame 231 so as to be connected with the bearing layer, and the installation is firm and reliable. The wall surface radiation system 22 is formed by laying a serpentine coil in the inner facing 21 and heating or cooling the cantilever wall 2 by introducing circulating water into the coil. In summer, cold water is introduced into the pipe, and the cold water absorbs indoor heat through the cooling cantilever wall 2 to maintain indoor comfortable temperature and reach a constant temperature state; when winter, hot water is pumped into the pipe, so that heat is radiated indoors. The wall radiation system is combined with the establishment of a heat preservation system, a constant-temperature and energy-saving indoor environment is jointly established, and the indoor free temperature is enabled to be close to the indoor comfortable temperature range to the maximum extent, so that the purpose of reducing indoor cold and heat loads is achieved, the building energy consumption is further reduced, an ultra-low energy consumption CLT building is formed, and the purposes of saving energy, protecting the environment and realizing ultra-low energy consumption are achieved.

In this embodiment, an external multilayer board 27 is disposed on a side of the fourth insulating layer 25 away from the second CLT bearing board 24, so as to achieve the effects of decoration or heat preservation. The externally-hung multilayer board has the basic performances of corrosion resistance, high temperature resistance, aging resistance, no radiation, fire resistance, insect prevention, no deformation and the like, and also has the advantages of attractive appearance, simple and convenient construction, environmental protection, energy conservation and the like. As shown in fig. 3B, the external multi-layer board 27 is mounted on the main bearing structure through a connecting piece, so that the mounting is firmer and more stable, and the building safety is ensured. A waterproof breathable film 26 is arranged between the externally-hung multilayer board 27 and the fourth heat-insulating layer 25. Waterproof ventilated membrane is a novel polymer waterproof material, can prevent to permeate the moisture that comes in from the outside and get into indoorly, keeps indoor drying, still can avoid steam to destroy inboard heat preservation, influences the heat preservation effect.

As shown in fig. 1, the fourth insulating layer 25 has at least two layers, and the second insulating layer 18 located outside the first CLT bearing plate 17 and extending out of the building main body 3 has at least two layers. The fourth insulating layer 25 and the second insulating layer 18 can be made of insulating rock wool or glass wool, and have the advantages of low thermal conductivity, heat insulation, good sound absorption performance, corrosion resistance and stable chemical performance. Therefore, the CLT bearing plate extending out of the building main body is protected by multilayer heat preservation at the position directly contacted with the outside, so that the heat transfer between the outside and the inside is further reduced, the effects of heat preservation, sound insulation and the like are enhanced, and the adverse effect of a cold bridge on the building is further weakened.

Since the overhanging structure is mostly present at the junctions of the balcony or the like, in the present embodiment, the overhanging structure further includes a window 4 provided on the overhanging wall 2 to increase the incidence of light. As shown in fig. 2 and 3, the upper and lower ends of the window 4 are respectively shown in schematic view. The window 4 includes a window frame 41 connected to the cantilever wall 2 and a glass 42 provided in the window frame 41, the glass 42 is a multi-layer glass to enhance a sound insulation effect, and a sealing structure is provided at a joint position between the window frame 41 and the cantilever wall 2. As shown at C in fig. 1, the gap on the inside of the window chamber must be sealed with an airtight adhesive tape to prevent wind from penetrating inwards from the gap. As shown at F in fig. 1, the gap at the outside of the window chamber must be caulked with an acrylic sealant to achieve a waterproof sealing effect. Set up like this, the seam that exists between window and the wall of encorbelmenting all carries out sealed processing, prevents indoor outer air leakage to guarantee the heat preservation sound insulation effect of structure of encorbelmenting.

As shown in fig. 2, the cantilever structure further comprises individual louvers 5 capable of shading the glass 42 for providing shade protection. So be convenient for adjust light, if close independent shutter when opening the window and can also play the effect of ventilation regulation. As shown in fig. 2, since the weight of the individual blind 5 is relatively small, the individual blind 5 can be mounted on an auxiliary support structure of the facade, such as the fourth insulating layer 25 connected to the second CLT bearing plate 24, and it is also ensured that the individual blind 5 does not fall off.

In this embodiment, the first CLT bearing plate 17 is vertically arranged with the second CLT bearing plate 24 and fixedly connected by the fastening member 6. As shown in fig. 1, the fastening member 6 penetrates the first CLT bearing plate 17 and extends into the second CLT bearing plate 24, so that the cantilever floor 1 and the cantilever wall 2 are connected together, and the fastening member 6 is a CTL construction-specific nail or screw. And as shown in fig. 1 at D, the corner joint formed by the first CLT bearing plate 17 and the second CLT bearing plate 24 is provided with a sealing structure, for example, the joint is sealed by neoprene, so that the sealing treatment is performed at the corner of the two bearing plates perpendicular to each other, the impermeability of the joint is ensured, and sound, air and the like are prevented from leaking from the gap. In addition, L-shaped metal parts can be arranged at the corners of the two bearing plates, so that the connection reliability of the two bearing plates is further improved. As shown in fig. 1, when the cantilever floor 1 is connected to the bearing layer of the building body 3, the first CLT bearing plate 17 and the second CLT bearing plate 24 are provided in such a manner as to ensure safe and reliable connection of the whole building and good airtightness.

It should be noted that the devices or components with different functions in the above embodiments may be combined, for example, in a preferred embodiment, the overhanging structure of the ultra-low energy consumption CLT building includes an overhanging floor 1 extending along the transverse direction and connected to the building main body 3, and an overhanging wall 2 extending along the longitudinal direction and intersecting and connected to the overhanging floor 1, and the overhanging floor 1 extends out of the building main body 3 and is connected to the overhanging wall 2. The overhanging floor slab 1 comprises a first CLT bearing plate 17 connected with the building main body 3, the overhanging wall 2 comprises a second CLT bearing plate 24 which is intersected and connected with the first CLT bearing plate 17, and the first CLT bearing plate 17 and the second CLT bearing plate 24 are all solid wood plates formed by gluing at least three layers of solid wood sawn materials or structural composite plate orthogonal assembly. The overhanging floor slab 1 further comprises a first heat-insulating layer 14 and a second heat-insulating layer 18 which are respectively arranged on two sides of the first CLT bearing plate 17, the first heat-insulating layer 14 is an impact-resistant soundproof cotton plate, and the second heat-insulating layer 18 is heat-insulating rock wool or glass wool. The cantilever wall 2 further comprises a third insulating layer 23 and a fourth insulating layer 25 which are respectively arranged on two sides of the second CLT bearing plate 24. The third insulating layer 23 comprises a wood keel frame 231 connected with the second CLT bearing plate 24 and an insulating material 232 filled in the wood keel frame 231, and an inner facing 21 is arranged on one side of the wood keel frame 231, which is far away from the second CLT bearing plate 24. The fourth insulating layer 25 is at least two layers, and the second insulating layer 18 positioned outside the first CLT bearing plate 17 extending out of the building main body 3 is at least two layers.

In this embodiment, light mortar 15 is filled between the first CLT bearing plate 17 and the first heat-insulating layer 14, a first protective layer 16 is laid at a contact position of the light mortar 15 and the first CLT bearing plate 17, and a double-layer gypsum board 13, a second protective layer 12 and a floor 11 are sequentially arranged on one side of the first heat-insulating layer 14 away from the first CLT bearing plate 17. And a wall surface radiation system 22 for regulating the indoor temperature is also arranged between the inner facing 21 and the third insulating layer 23. An external multilayer plate 27 is arranged on one side of the fourth heat-insulating layer 25, which is far away from the second CLT bearing plate 24, and a waterproof breathable film 26 is arranged between the external multilayer plate 27 and the fourth heat-insulating layer 25. The first CLT bearing plate 17 and the second CLT bearing plate 24 are vertically arranged and fixedly connected through a fastener 6, the fastener 6 penetrates through the first CLT bearing plate 17 and extends into the second CLT bearing plate 24, and a sealing structure is arranged at a corner joint position formed by the first CLT bearing plate 17 and the second CLT bearing plate 24.

In addition, the structure of encorbelmenting still includes window 4 that sets up on the wall 2 of encorbelmenting, and window 4 includes the window frame 41 that is connected with the wall 2 of encorbelmenting and sets up the glass 42 in window frame 41, and the position of the seam of window frame 41 and wall 2 of encorbelmenting is provided with seal structure. The cantilever structure further comprises individual louvers 5 capable of shading the glass 42 for providing shade protection.

So set up, the structure of encorbelmenting in the building has carried out scientific node structure design, it is not simply directly to take the CLT to do wall body or floor, the both sides of all CLT bearing plates in the structure of encorbelmenting all set up the heat preservation, combine the peculiar thermal insulation performance of timber itself, form triple heat preservation effect in the building structure, thereby the thermal-insulated heat preservation ability of timber building has been improved, reduce and carry out the heat exchange with the external world, reduce the building energy consumption, energy-conserving heat preservation, and the CLT bearing plate receives the heat preservation cladding, isolated with the external world, avoid timber overheat deformation, effectively play thermal-insulated guard action, simultaneously still greatly reduced the appearance of cold bridge, the condensate water leads to the insulation material to wet and mildenes and rot the inefficacy among the prior art has been reduced, damage building structure layer even, thereby the life of CLT building has been prolonged. In addition, the wall radiation system is combined with the arrangement of the heat insulation layer, so that the indoor environment temperature is effectively improved, people are in a suitable and comfortable environment, the purpose of reducing indoor heat and cold loads is achieved, the building energy consumption is further reduced, an ultra-low energy consumption CLT building is formed, the energy is saved, the environment is protected, and the purpose of ultra-low energy consumption is achieved. The third heat preservation layer forms a work cavity, not only plays the heat preservation effect, can also let pipeline etc. pass through in the insulation material, avoids destroying CLT bearing plate or interior finish, walks the line convenient and reliable, does not influence bearing wall structure, keeps interior finish whole pleasing to the eye. And the joint of the bearing layer and the connecting parts such as the window joint, the fastening piece and the like are sealed, so that the risks of sound transmission and air permeation at the joint are effectively avoided, and the good air tightness is ensured. Therefore, the outstanding building body has excellent heat insulation performance at the construction node, the specific structures of the wall body and the floor slab are scientifically and reasonably designed, the outstanding building body has enough strength and other performances, meets the use requirements, can excellently replace a concrete structure, and constructs the green, environment-friendly, energy-saving and emission-reducing ultralow-energy-consumption CLT building cantilever structure.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The overhanging structure of the CLT building with ultra-low energy consumption is characterized by comprising an overhanging floor slab (1) which extends along the transverse direction and is connected with a building main body (3) and an overhanging wall (2) which extends along the longitudinal direction, is intersected with the overhanging floor slab (1) and is connected with the overhanging floor slab (1), wherein the overhanging floor slab (1) extends out of the building main body (3); the cantilever floor slab (1) comprises a first CLT bearing plate (17) connected with the building main body (3), the cantilever wall (2) comprises a second CLT bearing plate (24) intersected and connected with the first CLT bearing plate (17), and the first CLT bearing plate (17) and the second CLT bearing plate (24) are both solid wood plates formed by gluing at least three layers of solid wood sawn materials or structural composite plates in an orthogonal assembly manner; the cantilever floor slab (1) further comprises a first heat preservation layer (14) and a second heat preservation layer (18) which are arranged on two sides of the first CLT bearing plate (17) respectively, and the cantilever wall (2) further comprises a third heat preservation layer (23) and a fourth heat preservation layer (25) which are arranged on two sides of the second CLT bearing plate (24) respectively.

2. The cantilever structure of the ultra-low energy consumption CLT building, according to claim 1, wherein a light mortar (15) is filled between the first CLT bearing plate (17) and the first heat-preservation layer (14), a first protective layer (16) is laid at the contact position of the light mortar (15) and the first CLT bearing plate (17), and a double-layer gypsum board (13), a second protective layer (12) and a floor board (11) are sequentially arranged at one side of the first heat-preservation layer (14) far away from the first CLT bearing plate (17).

3. The overhanging structure of ultra-low energy consumption CLT building as claimed in claim 1, wherein the third insulating layer (23) comprises a wood keel frame (231) connected with the second CLT bearing plate (24) and an insulating material (232) filled in the wood keel frame (231), and one side of the wood keel frame (231) far away from the second CLT bearing plate (24) is provided with an inner facing (21).

4. The overhanging structure of ultra-low energy consumption CLT building according to claim 3, wherein a wall surface radiation system (22) for regulating indoor temperature is further provided between the interior finishing surface (21) and the third insulating layer (23).

5. The overhanging structure of the ultra-low energy consumption CLT building as claimed in claim 1, wherein an externally-hung multi-layer plate (27) is disposed on one side of the fourth insulating layer (25) far away from the second CLT bearing plate (24), and a waterproof and breathable film (26) is disposed between the externally-hung multi-layer plate (27) and the fourth insulating layer (25).

6. The overhanging structure of ultra-low energy consumption CLT building according to claim 1, wherein the fourth insulating layer (25) has at least two layers, and the second insulating layer (18) located outside the building body (3) of the first CLT bearing plate (17) has at least two layers.

7. The overhanging structure of the ultra-low energy consumption CLT building as claimed in claim 1, further comprising a window (4) arranged on the overhanging wall (2), wherein the window (4) comprises a window frame (41) connected with the overhanging wall (2) and a glass (42) arranged in the window frame (41), and a sealing structure is arranged at the joint position of the window frame (41) and the overhanging wall (2).

8. The overhanging structure of ultra-low energy CLT building according to claim 7, further comprising individual blinds (5) capable of shielding the glass (42) for providing shade protection.

9. The overhanging structure of ultra-low energy consumption CLT building of claim 1, wherein the first thermal insulation layer (14) is impact-resistant acoustic cotton board.

10. The cantilever structure of the ultra-low energy consumption CLT building, as claimed in claim 1, wherein the first CLT bearing plate (17) and the second CLT bearing plate (24) are vertically arranged and fixedly connected by a fastener (6), the fastener (6) penetrates through the first CLT bearing plate (17) and extends into the second CLT bearing plate (24), and a sealing structure is arranged at a corner joint position formed by the first CLT bearing plate (17) and the second CLT bearing plate (24).