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

Abstract

The utility model discloses a cantilever structure of an ultra-low energy consumption CLT building, which comprises a cantilever floor extending laterally and a cantilever wall extending longitudinally. The cantilever floor extends out of the main body of the building and is connected with the cantilever wall , the cantilevered floor is sequentially provided with a first thermal insulation layer, a first CLT bearing board and a second thermal insulation layer, and the cantilevered wall is sequentially provided with a third thermal insulation layer, a second CLT bearing board and a fourth thermal insulation layer, and the first CLT bearing board And the second CLT load-bearing board are solid wood panels. In this way, all CLT load-bearing boards in the cantilever structure are provided with thermal insulation layers on both sides. Combined with the unique thermal insulation performance of the wood itself, a triple thermal insulation effect is formed in the building structure, thereby improving the thermal insulation ability of the wooden building and reducing the need for external heat preservation. Heat exchange, reduce building energy consumption, save energy and heat preservation, and the CLT load-bearing board is covered with insulation layer and isolated from the outside world, which greatly reduces the appearance of cold bridges and protects the load-bearing layer from damage, thereby extending the service life of CLT buildings.

Description

Cantilever structure of ultra-low energy CLT building

technical field

The utility model relates to the technical field of construction, in particular to a cantilever structure of an ultra-low energy consumption CLT building.

Background technique

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 several important node structures, among which the cantilever structure is one of the important nodes, which mostly appear in the position of the balcony and other prominent buildings. The cantilever structure of the existing wood structure building is directly made of wood as the wall, and the inner side is provided with thermal insulation materials. However, the thermal insulation effect is poor, and the wood is exposed to direct sunlight and overheated and deformed, which is prone to cold bridge phenomenon, which seriously damages the load-bearing structure of the building and shortens the service life of the building. Therefore, it is necessary to provide a cantilever structure of a new type of wooden structure to meet the use requirements of wooden buildings during construction.

Utility model content

The purpose of the present invention is to provide a cantilever structure of an ultra-low energy consumption CLT building to solve the problems raised in the above background technology.

The purpose of this utility model is to realize through the following technical solutions:

The utility model provides a cantilever structure of an ultra-low energy consumption CLT building, comprising a cantilevered floor slab extending laterally and connected to the main body of the building, and a cantilever extending longitudinally, intersecting and connected with the cantilevered floor slab the cantilevered floor slab protrudes out of the building body; the cantilevered floor slab includes a first CLT bearing plate connected to the building body, and the cantilevered wall includes a first CLT bearing plate intersecting with the first CLT bearing plate And the connected second CLT load-bearing board, the first CLT load-bearing board and the second CLT load-bearing board are solid wood boards that are formed by at least three layers of solid wood sawn timber or structural composite board orthogonally assembled blanks; the said The cantilevered floor slab further comprises a first thermal insulation layer and a second thermal insulation layer respectively arranged on both sides of the first CLT bearing plate, and the cantilevered wall further comprises a third thermal insulation layer arranged on both sides of the second CLT bearing plate respectively. Insulation layer and fourth insulation layer.

Preferably, light mortar is filled between the first CLT bearing board and the first thermal insulation layer, and a first protective layer is laid at the contact position of the light mortar and the first CLT bearing board, and the The side of the first thermal insulation layer away from the first CLT load-bearing board is sequentially provided with a double-layer gypsum board, a second protective layer and a floor.

Preferably, the third thermal insulation layer comprises a wooden keel frame connected to the second CLT bearing board and a thermal insulation material filled in the wooden keel frame, and the wooden keel frame is far away from the second CLT bearing board One side is provided with interior trim.

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

Preferably, a side of the fourth thermal insulation layer away from the second CLT bearing board is provided with an externally hung multi-layer board, and a waterproof and breathable membrane is provided between the externally mounted multi-layer board and the fourth thermal insulation layer.

Preferably, the fourth thermal insulation layer is at least two layers, and the second thermal insulation layer located on the first CLT load-bearing board extending out of the building body is at least two layers.

Preferably, it also includes a window arranged on the cantilevered wall, the window includes a window frame connected to the cantilevered wall and a glass arranged in the window frame, the window frame is connected to the cantilevered wall. The seam position of the overhang wall is provided with a sealing structure.

Preferably, separate shutters capable of shielding the glass for providing shade protection are also included.

Preferably, the first thermal insulation layer is an impact-resistant and sound-insulating cotton board.

Preferably, the first CLT bearing plate and the second CLT bearing plate are vertically arranged and are fixedly connected by fasteners, and the fasteners penetrate through the first CLT bearing plate and extend into the second CLT bearing plate In the board, a sealing structure is provided at the corner joint position formed by the first CLT bearing board and the second CLT bearing board.

In the technical solution provided by the present invention, a cantilever structure of an ultra-low energy consumption CLT building includes a cantilevered floor slab extending laterally and connected to the main body of the building, and a cantilevered floor slab extending longitudinally, intersecting and connecting with the cantilevered floor slab A cantilever wall, the cantilevered floor slab protrudes out of the main body of the building; the cantilevered floor slab includes a first CLT load-bearing plate connected with the building main body, the cantilevered wall includes a second CLT load-bearing plate that intersects and connects with the first CLT load-bearing plate, the first CLT load-bearing plate Both the CLT load-bearing board and the second CLT load-bearing board are solid wood boards that are made of at least three layers of solid wood sawn timber or structural composite board orthogonally assembled; A thermal insulation layer and a second thermal insulation layer, and the cantilever wall further includes a third thermal insulation layer and a fourth thermal insulation layer respectively arranged on both sides of the second CLT bearing plate. In this way, thermal insulation layers are installed on both sides of all CLT load-bearing boards in the cantilever structure. Combined with the unique thermal insulation performance of the wood itself, a triple thermal insulation effect is formed in the building structure, thereby improving the thermal insulation ability of the wooden building and reducing the thermal insulation capacity of the wood building. Carry out heat exchange, reduce building energy consumption, save energy and heat preservation, and the CLT load-bearing board is covered with insulation layer and isolated from the outside world, which greatly reduces the appearance of cold bridges, protects the load-bearing layer from harm, and prolongs the service life of CLT buildings.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the cantilever structure schematic diagram of ultra-low energy consumption CLT building in the embodiment of the present utility model;

Fig. 2 is the structural representation one of the cantilever wall in the embodiment of the present utility model;

3 is a second structural schematic diagram of a cantilever wall in an embodiment of the present invention;

4 is a schematic structural diagram of a cantilevered floor slab in an embodiment of the present utility model;

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

In Figures 1-5:

1- Cantilever floor; 11- Floor; 12- Second protective layer; 13- Double gypsum board; 14- First insulation layer; 15- Light mortar; 16- First protective layer; 17- First CLT load-bearing Board; 18-Second insulation layer; 2-Cantilever wall; 21-Interior surface; 22-Wall radiant system; 23-Third insulation layer; 231-Wooden keel frame; 232-Insulation material; 24-Second CLT load-bearing board; 25- fourth thermal insulation layer; 26- waterproof and breathable membrane; 27- external multi-layer board; 3- building main body; 4- window; 41- window frame; 42- glass; 5- independent shutter; 6- tight firmware.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present invention.

Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. In addition, the embodiments shown below do not have any limiting effect on the content of the utility model described in the claims. In addition, the whole content of the structure shown in the following embodiment is not limited to what is necessary for the solution of the invention described in the claim.

It should be noted that the “horizontal” and “vertical” directions mentioned in the text refer to the placement state of the cantilevered structure of the ultra-low energy CLT building as shown in Figure 1, that is, the left and right directions in the figure are horizontal. The vertical direction in the figure is vertical.

Please refer to accompanying drawings 1-5. The cantilevered structure of the ultra-low energy CLT (Cross-Laminated Timber, cross-laminated timber) building provided by this embodiment includes a cantilevered floor slab 1 extending laterally and connected to the building main body 3 and a cantilever wall 2 extending in the longitudinal direction, intersecting and connecting with the cantilever floor 1 . Figure 5 shows a schematic diagram of the overall structure of the CLT building under an embodiment. The dotted line frame in the figure indicates the location of the cantilever structure. Of course, the external structure of the CLT building is not limited to that shown in Figure 5, and its specific form is based on the actual building. Blueprint design and build. As shown in FIG. 1 , the left end of the cantilevered floor 1 is suspended in the air, extends out of the building body 3 , and is connected to the cantilevered wall 2 . The cantilevered floor 1 includes a first CLT bearing plate 17 connected to the building main body 3, the cantilevered wall 2 includes a second CLT bearing plate 24 intersecting and connecting with the first CLT bearing plate 17, the first CLT bearing plate 17 and the first CLT bearing plate 17. The two CLT load-bearing boards 24 are all solid wood boards that are formed by gluing at least three layers of solid wood sawn timber or structural composite boards orthogonally assembled. The structural composite panels used include Laminated Veneer Lumber (LVL), Laminated Strand Lumber (LSL), Oriented Strand Lumber (OSL) and Oriented Strand Board (Oriented Strand Lumber). Strand Board, OSB) etc. CLT is an emerging wood building material in recent years. It is a factory prefabricated engineered wood product in the form of rectangular, straight, and flat panels that are made of multi-layered wood squares stacked orthogonally and pressed with structural adhesives. The area and thickness can be customized. , and the corresponding parameters are calculated according to the structural strength. Large pieces of CLT can be directly cut and used as walls and floors of buildings, which can greatly improve the construction efficiency of the project. This engineered wood material features staggered cross-grained and vertical-grained gauge lumber glued together for better strength, and can be used to replace concrete for building houses due to its high strength and fire resistance. CLT materials are better than concrete materials in terms of environmental protection (low carbon/carbon sequestration) performance, strength-to-weight ratio, seismic elasticity, thermal insulation performance, assembly performance, recyclability, and sustainability. The cantilevered floor 1 further includes a first thermal insulation layer 14 and a second thermal insulation layer 18 respectively arranged on both sides of the first CLT bearing plate 17 , and the cantilever wall 2 further includes a third thermal insulation layer 18 arranged on both sides of the second CLT bearing plate 24 respectively. The thermal insulation layer 23 and the fourth thermal insulation layer 25 . Specifically, as shown in FIG. 1 , the top of the first CLT bearing plate 17 is the first thermal insulation layer 14 , the bottom is the second thermal insulation layer 18 , the right side of the second CLT bearing plate 24 is the third thermal insulation layer 23 , and the left side is the third thermal insulation layer 23 . Four thermal insulation layers 25 .

In this way, thermal insulation layers are installed on both sides of all CLT load-bearing boards in the cantilever structure. Combined with the unique thermal insulation performance of the wood itself, a triple thermal insulation effect is formed in the building structure, thereby improving the thermal insulation ability of the wooden building and reducing the thermal insulation capacity of the wood building. Carry out heat exchange, reduce building energy consumption, save energy and heat preservation, and the CLT load-bearing board is covered with insulation layer, which is isolated from the outside world, avoids overheating and deformation of wood, effectively plays a role in thermal insulation and protection, and also greatly reduces the appearance of cold bridges. In the prior art, since there is no insulation layer on the outside of the wood, condensation, frost and ice are easily formed on it during heat exchange with the outside world, resulting in the inner insulation material being damp and mildewed and failing, and even damage to the building structure layer. In this application, the CLT load-bearing board is covered with thermal insulation layers inside and outside, and a scientific joint structure design is carried out, which reduces the occurrence of cold bridges, protects the load-bearing layer from damage, and thus prolongs the service life of the CLT building. CLT load-bearing board is a solid wood board with extremely high strength, which can completely replace concrete materials and form green buildings, enabling the construction industry to achieve pollution-free, recyclable and sustainable development.

In this embodiment, light mortar 15 is filled between the first CLT bearing plate 17 and the first thermal insulation layer 14 , and the light mortar 15 has good cohesion after being mixed with water and is easy to construct, and because of its porous and extremely low thermal conductivity It is very effective in blocking heat transfer and preventing fire spread. It has high strength and lighter weight, and is suitable for use in cantilevered structures. A first protective layer 16 is laid at the contact position between the light mortar 15 and the first CLT bearing plate 17, and the isolation and protection materials commonly used in construction can be used, such as pure aluminum foil, that is, the isolation and protection layer of aluminum dioxide. Prevent water from plastering from penetrating into the CLT load-bearing plate and damaging the load-bearing structure. On the side of the first thermal insulation layer 14 away from the first CLT bearing board 17 , that is, above it, a double-layer gypsum board 13 , a second protective layer 12 and a floor 11 are arranged in sequence. Since the cantilevered floor 1 is suspended in the air, the double-layer gypsum board 13 has good crack resistance and moisture resistance, which can improve the crack prevention strength when the overall structure is deformed, can also effectively prevent the diffusion of water vapor, and has a very good moisture resistance effect. After the double layer is adopted, the fire performance is enhanced, and the sound insulation effect is increased. In actual construction, when laying the floor on the double-layer gypsum board, a layer of white protective film is generally laid as a protective layer, that is, a floor mat, which plays the role of moisture-proof and smoothing the ground, and can also avoid the floor and the double-layer gypsum when walking. The plate rubs and makes a sound. The choice of the floor 11 can be determined according to factors such as architectural design style and customer preference.

Since people often walk on the cantilevered floor 1, in the specific embodiment of the present invention, the first thermal insulation layer 14 is an impact-resistant and sound-insulating cotton board. This can isolate sound transmission, create a comfortable and quiet indoor environment, protect personal privacy, and also have the advantages of heat insulation, flame retardant and moisture resistance, effectively play a role in heat preservation, and at the same time use its better impact resistance to effectively improve the cantilever floor slab. quality and extended service life. In addition, as shown in FIG. 1 , the right end of the cantilevered floor 1 extends into the main body 3 of the building, and its lower side can be used as the roof of the lower space. As shown at E in FIG. 4 , the suspended ceiling is fixedly connected to the first CLT bearing plate 17 through an aluminum support, which penetrates through the second thermal insulation layer 18 and is fixed by special fastening screws, and is connected to the first CLT between the aluminum support and the first CLT. The sound insulation strips are placed between the load-bearing plates 17, which on the one hand prevents the risk of sound transmission at the joints of the components, and on the other hand, also plays a sealing role to ensure that the building structure has good air tightness.

As shown in FIG. 2 , the third thermal insulation layer 23 includes a wooden keel frame 231 connected to the second CLT bearing board 24 and a thermal insulation material 232 filled in the wooden keel frame 231 , and the wooden keel frame 231 is far from the second CLT bearing board 24 . An interior surface 21 is provided on one side of the . The wooden keel frame 231 is composed of wooden keels arranged at intervals to form a cavity, the wooden keel is connected with the main load-bearing structure, and the cavity is filled with thermal insulation materials such as thermal insulation rock wool or glass wool. The interior surface 21 can be made of fireproof gypsum board or inner hanging board. Fireproof gypsum board not only has the characteristics of sound insulation, heat insulation, heat preservation, light weight, high strength and small shrinkage rate of general paper gypsum board, but also has high fire resistance performance. , The fire prevention time is more than one hour, if a fire occurs, it can effectively block the spread of the flame and gain valuable time for escape. The inner hanging board is a commonly used material in building construction, which can not only decorate the interior wall, but also play the role of fire prevention and sound insulation. In this way, the third thermal insulation layer forms a working cavity, which not only plays a role of thermal insulation, but also allows pipelines to pass through the thermal insulation material, so as to avoid damage to the CLT load-bearing board or interior surface. The wiring is convenient and reliable, and does not affect the structure of the load-bearing wall. , to maintain the overall appearance of the interior surface.

A wall radiation system 22 for adjusting the indoor temperature is also arranged between the interior surface 21 and the third thermal insulation layer 23 . The wall radiation system 22 can be fixedly connected to the wooden keel frame 231, so as to be connected to the load-bearing layer, and the installation is firm and reliable. In the wall radiation system 22, the serpentine coils are laid in the interior surface 21, and the cantilevered wall 2 is heated or cooled by passing circulating water into the pipes. In summer, cold water is introduced into the pipe, and the cold water absorbs indoor heat through the cooling cantilever wall 2 to maintain a comfortable indoor temperature and achieve a constant temperature; in winter, hot water is introduced into the pipe to radiate heat to the room. In this way, the wall radiant system combined with the establishment of the thermal insulation system jointly builds a constant temperature and energy-saving indoor environment, so that the indoor free temperature is as close as possible to the indoor comfortable temperature range, so as to achieve the purpose of reducing the indoor heating and cooling load, and further reduce the building energy consumption. Form ultra-low energy consumption CLT buildings to achieve the purpose of energy saving, environmental protection and ultra-low energy consumption.

In this embodiment, an external hanging multi-layer board 27 is provided on the side of the fourth thermal insulation layer 25 away from the second CLT bearing board 24 to achieve decoration or thermal insulation effects. The external multi-layer board has basic properties such as anti-corrosion, high temperature resistance, anti-aging, no radiation, fire prevention, insect resistance, no deformation, etc. At the same time, it also has beautiful appearance, simple construction, environmental protection and energy saving. As shown at B in FIG. 3 , the externally hanging multi-layer board 27 is installed on the main load-bearing structure through the connecting piece, and the installation is more firm and stable, ensuring the safety of the building. A waterproof and breathable membrane 26 is arranged between the outer hanging multi-layer board 27 and the fourth thermal insulation layer 25 . The waterproof breathable membrane is a new type of polymer waterproof material, which can prevent the moisture infiltrating from the outside from entering the room, keep the room dry, and also prevent the water vapor from damaging the inner insulation layer and affecting the insulation effect.

As shown in FIG. 1 , the fourth thermal insulation layer 25 is at least two layers, and the second thermal insulation layer 18 located on the first CLT bearing plate 17 extending out of the building main body 3 is at least two layers. The fourth thermal insulation layer 25 and the second thermal insulation layer 18 can be thermal insulation rock wool or glass wool, which has the advantages of low thermal conductivity, thermal insulation, good sound absorption, corrosion resistance and stable chemical properties. In this way, the parts of the CLT load-bearing board extending out of the main body of the building in direct contact with the outside world have multi-layer thermal insulation protection, which further reduces the heat transfer between the outdoor and the indoor, strengthens the effects of thermal insulation and sound insulation, and further weakens the adverse effects of cold bridges on the building.

Since the cantilevered structure mostly occurs at nodes such as balconies, in this embodiment, the cantilevered structure further includes a window 4 arranged on the cantilevered wall 2 to increase the incidence of light. As shown in FIGS. 2 and 3 , they are schematic structural diagrams of the upper and lower ends of the window 4 , respectively. The window 4 includes a window frame 41 connected to the cantilever wall 2 and a glass 42 arranged in the window frame 41. The glass 42 is multi-layered to enhance the sound insulation effect. The joint position between the window frame 41 and the cantilever wall 2 is provided with a seal. structure. As shown at C in Figure 1, the gap on the inside of the window room must be sealed with airtight tape to prevent wind from penetrating inward from the gap. As shown at F in Figure 1, the gap on the outside of the window must be caulked with acrylic sealant to achieve a waterproof and airtight effect. In this way, the joints existing between the window and the cantilever wall are sealed to prevent the leakage of indoor and outdoor air, thereby ensuring the thermal insulation and sound insulation effect of the cantilever structure.

As shown in FIG. 2 , the cantilevered structure also includes an independent shutter 5 capable of shielding the glass 42 for providing shade protection. This makes it easy to adjust the light, and if you close the independent shutters when you open the window, you can also adjust the ventilation. As shown in FIG. 2 , because the weight of the independent shutter 5 is relatively small, the independent shutter 5 can be installed on the auxiliary supporting structure of the facade, such as the fourth thermal insulation layer 25 connected with the second CLT bearing plate 24 , it can also ensure that the independent shutter 5 will not fall.

In this embodiment, the first CLT bearing plate 17 and the second CLT bearing plate 24 are vertically arranged and fixedly connected by the fastener 6 . As shown in FIG. 1 , the fastener 6 penetrates through the first CLT bearing plate 17 and extends into the second CLT bearing plate 24 , thereby connecting the cantilevered floor 1 and the cantilevered wall 2 together, and the fastener 6 is a CTL building Special nails or screws. And as shown at D in FIG. 1 , 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 with a neoprene rubber strip, so that the two perpendicular The corners of each load-bearing plate are sealed to ensure the impermeability of the connection structure, and to ensure that sound and air will not leak from the gap. In addition, L-shaped metal parts can be installed at the corners of the two load-bearing plates to further improve the reliability of the connection between the two. And as shown in FIG. 1 , when the cantilevered floor 1 is connected to the load-bearing layer of the main building 3, it is also set in the same way as the above-mentioned connection between the first CLT load-bearing plate 17 and the second CLT load-bearing plate 24 to ensure the overall connection of the building is safe and reliable. , good air tightness.

It should be noted that devices or components with different functions in the above embodiments can be combined. For example, in the preferred solution of this embodiment, the cantilever structure of the ultra-low energy CLT building includes a horizontal extension and is connected to the building main body 3 . The cantilevered floor 1 and the cantilever wall 2 extending longitudinally, intersecting and connecting with the cantilevered floor 1, the cantilevered floor 1 protrudes out of the building main body 3 and is connected with the cantilevered wall 2. The cantilevered floor 1 includes a first CLT bearing plate 17 connected to the building main body 3, the cantilevered wall 2 includes a second CLT bearing plate 24 intersecting and connecting with the first CLT bearing plate 17, the first CLT bearing plate 17 and the first CLT bearing plate 17. The two CLT load-bearing boards 24 are all solid wood boards that are formed by gluing at least three layers of solid wood sawn timber or structural composite boards orthogonally assembled. The cantilevered floor slab 1 further includes a first thermal insulation layer 14 and a second thermal insulation layer 18 respectively disposed on both sides of the first CLT bearing plate 17 , the first thermal insulation layer 14 is an impact-resistant sound insulation cotton board, and the second thermal insulation layer 18 is thermal insulation rock. cotton or glass wool. The cantilever wall 2 further includes a third thermal insulation layer 23 and a fourth thermal insulation layer 25 respectively disposed on both sides of the second CLT bearing plate 24 . The third thermal insulation layer 23 includes a wooden keel frame 231 connected to the second CLT bearing board 24 and a thermal insulation material 232 filled in the wooden keel frame 231. The side of the wooden keel frame 231 away from the second CLT bearing board 24 is provided with an inner Finishes 21. The fourth thermal insulation layer 25 is at least two layers, and the second thermal insulation layer 18 located on 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 thermal insulation layer 14 , and a first protective layer 16 is laid at the contact position between the lightweight mortar 15 and the first CLT bearing plate 17 . A side of the thermal insulation layer 14 away from the first CLT bearing board 17 is sequentially provided with a double-layer gypsum board 13 , a second protective layer 12 and a floor 11 . A wall radiation system 22 for adjusting the indoor temperature is also arranged between the interior surface 21 and the third thermal insulation layer 23 . An external multi-layer board 27 is provided on the side of the fourth thermal insulation layer 25 away from the second CLT bearing board 24 . The first CLT bearing plate 17 and the second CLT bearing plate 24 are vertically arranged and are fixedly connected by the fasteners 6. The fasteners 6 penetrate through the first CLT bearing plate 17 and extend into the second CLT bearing plate 24, and the first CLT bearing plate 24 A sealing structure is provided at the corner seam position formed by the bearing plate 17 and the second CLT bearing plate 24 .

In addition, the cantilever structure also includes a window 4 arranged on the cantilever wall 2, and the window 4 includes a window frame 41 connected to the cantilever wall 2 and a glass 42 arranged in the window frame 41. The window frame 41 is connected to the cantilever wall. The seam position of 2 is provided with a sealing structure. The cantilevered structure also includes individual shutters 5 capable of shielding the glass 42 for shade protection.

In this way, the cantilever structure in the building has been scientifically designed for the joint structure. Instead of simply using CLT as a wall or floor, all the CLT load-bearing plates in the cantilever structure are provided with thermal insulation layers on both sides, combined with wood. Its own unique thermal insulation performance forms triple thermal insulation effect in the building structure, thereby improving the thermal insulation capability of wooden buildings, reducing heat exchange with the outside world, reducing building energy consumption, saving energy and thermal insulation, and the CLT load-bearing board is covered by thermal insulation layers. , isolated from the outside world, to avoid overheating and deformation of wood, effectively play a role in thermal insulation and protection, and also greatly reduce the appearance of cold bridges, reduce the moisture and mildew failure of thermal insulation materials caused by condensed water in the prior art, and even damage the building structure layer. hazards, thereby extending the life of the CLT building. In addition, the wall radiant system combined with the setting of the thermal insulation layer can effectively improve the indoor ambient temperature and make people in a suitable and comfortable environment, so as to achieve the purpose of reducing the indoor heating and cooling load, further reducing the building energy consumption, and forming an ultra-low energy consumption CLT building , energy saving and environmental protection, to achieve the purpose of ultra-low energy consumption. The third thermal insulation layer forms a working cavity, which not only plays a role in thermal insulation, but also allows pipelines to pass through the thermal insulation material to avoid damage to the CLT load-bearing board or interior surface. The finish is overall beautiful. Moreover, the joints of load-bearing layers, components such as window joints, fasteners and other joints are sealed, which effectively avoids the risk of sound transmission and air infiltration at the joints and ensures good air tightness. Therefore, the structural nodes of the main building have superior thermal insulation performance, and the specific structures of the walls and floors have been scientifically and rationally designed, with sufficient strength and other properties to meet the requirements of use, and can excellently replace the concrete structure. , Energy saving and emission reduction ultra-low energy consumption CLT building cantilever structure.

The above description of the disclosed embodiments enables those skilled in the art to implement 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 implemented in other embodiments without departing from the spirit or scope of the present 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 (10)

1. A cantilever structure of an ultra-low energy consumption CLT building, characterized in that it comprises a cantilevered floor slab (1) extending laterally and connected to the main body of the building (3) and extending longitudinally and being connected to the cantilevered floor slab (1) A cantilever wall (2) intersecting and connecting floor slabs (1), the cantilevered floor slab (1) protruding out of the building body (3); the cantilevered floor slab (1) comprises a ) connected to the first CLT load-bearing plate (17), the cantilever wall (2) includes a second CLT load-bearing plate (24) that intersects and connects with the first CLT load-bearing plate (17), the first CLT load-bearing plate (24) The CLT load-bearing board (17) and the second CLT load-bearing board (24) are both solid wood boards formed by at least three layers of solid wood sawn timber or structural composite board orthogonally assembled blanks; the cantilevered floor slab (1) is also It comprises a first thermal insulation layer (14) and a second thermal insulation layer (18) respectively arranged on both sides of the first CLT bearing plate (17), and the cantilever wall (2) further comprises a first thermal insulation layer (14) and a second thermal insulation layer (18) respectively arranged on the second The third thermal insulation layer (23) and the fourth thermal insulation layer (25) on both sides of the CLT bearing plate (24). 2. The cantilevered structure of an ultra-low energy consumption CLT building according to claim 1, characterized in that, light mortar is filled between the first CLT bearing plate (17) and the first thermal insulation layer (14) (15), a first protective layer (16) is laid at the contact position between the lightweight mortar (15) and the first CLT bearing plate (17), and the first thermal insulation layer (14) is far from the first One side of the CLT load-bearing board (17) is sequentially provided with a double-layer gypsum board (13), a second protective layer (12) and a floor (11). 3. The cantilevered structure of an ultra-low energy consumption CLT building according to claim 1, wherein the third thermal insulation layer (23) comprises a wooden keel frame connected to the second CLT bearing plate (24) (231) and the thermal insulation material (232) filled in the wooden keel frame (231), the side of the wooden keel frame (231) away from the second CLT bearing plate (24) is provided with an interior surface ( twenty one). 4. The cantilevered structure of an ultra-low energy consumption CLT building according to claim 3, characterized in that, between the interior surface (21) and the third thermal insulation layer (23), there is also provided for adjusting the indoor temperature wall radiant system (22). 5. The cantilevered structure of an ultra-low energy consumption CLT building according to claim 1, characterized in that, a side of the fourth thermal insulation layer (25) away from the second CLT bearing plate (24) is provided with an external hanging A layer board (27), and a waterproof and breathable membrane (26) is arranged between the outer hanging multi-layer board (27) and the fourth thermal insulation layer (25). 6. The cantilevered structure of an ultra-low energy consumption CLT building according to claim 1, characterized in that the fourth thermal insulation layer (25) is at least two layers, and is located on the first CLT bearing plate (17) extending out The second thermal insulation layer (18) outside the building main body (3) is at least two layers. 7. The cantilevered structure of an ultra-low energy CLT building according to claim 1, characterized in that further comprising a window (4) arranged on the cantilever wall (2), the window (4) comprising a The window frame (41) connected to the cantilever wall (2) and the glass (42) arranged in the window frame (41), the window frame (41) and the cantilever wall (2) The seam position is provided with a sealing structure. 8. The cantilevered structure of an ultra-low energy consumption CLT building according to claim 7, further comprising an independent shutter (5) capable of shielding the glass (42) for providing shade protection. 9 . The cantilevered structure of an ultra-low energy consumption CLT building according to claim 1 , wherein the first thermal insulation layer ( 14 ) is an impact-resistant and sound-insulating cotton board. 10 . 10. The cantilevered structure of an ultra-low energy consumption CLT building according to claim 1, wherein the first CLT bearing plate (17) and the second CLT bearing plate (24) are vertically arranged and fastened The fasteners (6) are fixedly connected, the fasteners (6) penetrate through the first CLT bearing plate (17) and extend into the second CLT bearing plate (24), and the first CLT bearing plate ( 17) A sealing structure is provided at the corner seam position formed with the second CLT bearing plate (24).

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