CN209760427U - Sandwich insulation structure system that meets the requirements of ultra-low energy consumption buildings - Google Patents

Abstract

The utility model relates to the field of construction engineering, and discloses a sandwich insulation structure system that meets the requirements of ultra-low energy consumption buildings. The sandwich insulation structure system includes: an inner leaf wall, an insulation core layer and an outer leaf wall arranged sequentially from inside to outside ; Also includes: cantilever beams, the two ends of the cantilever beams respectively extend across the thermal insulation core layer into the inner leaf wall and the outer leaf wall, so as to connect the inner leaf wall and the outer leaf wall. The utility model provides a sandwich thermal insulation structure system that meets the requirements of ultra-low energy consumption buildings, has fewer thermal bridges, and measures to block thermal bridges are taken, has good thermal insulation performance, and can fully guarantee the thermal insulation core layer at the same time The continuity of the structure, no structural thermal bridges, can meet the energy-saving requirements of ultra-low energy buildings, and the insulation material can be selected in a wide range, the construction is simple, and at the same time, the insulation material and the main structure have the same life span, meeting the integration of building insulation and structure The requirements are applicable to brick-concrete, frame and shear wall structural systems.

Description

Sandwich insulation structure system that meets the requirements of ultra-low energy consumption buildings

technical field

The utility model relates to the field of construction engineering, in particular to a sandwich insulation structure system meeting the requirements of ultra-low energy consumption buildings.

Background technique

With the rapid economic development, the contradiction between energy and the environment has become increasingly prominent. Many countries are actively formulating development goals and technical policies for ultra-low energy consumption buildings, and establishing ultra-low energy consumption building standards and corresponding technical systems suitable for their own characteristics. High-efficiency and energy-saving buildings are especially Ultra-low energy consumption buildings have become the development trend of building energy conservation. Ultra-low-energy buildings, also known as passive ultra-low-energy buildings, refer to adapting to climate characteristics and natural conditions, through enclosure structures with higher thermal insulation performance and airtight performance, using fresh air heat recovery technology, and using renewable energy to provide Buildings with a comfortable indoor environment. In some climate zones, passive ultra-low energy buildings can guarantee good indoor comfort without the use of active heating or cooling systems. my country's passive ultra-low energy building index system should be based on national conditions, and on the premise of respecting residents' living habits and reducing building energy consumption, appropriately improve the building environment standards, and create a healthy and comfortable indoor environment suitable for Chinese residents.

my country's economic development level and indoor environment standards are low, and the construction technology and industrial level are very different from those of European and American countries. The utility model provides more possibilities, feasibility and sustainability for the structure of ultra-low energy consumption green buildings. The common thermal insulation system is external thermal insulation, but the external thermal insulation material has low strength, is easily damaged, and has a short service life. At present, the sandwich insulation wall structure suitable for low-storey energy-saving buildings is "16J107, 16G617 Sandwich Insulation Wall Building and Structural Construction", and the out-of-plane force (including wind and earthquake action) of the outer leaf wall is transmitted by the reinforced mesh. For the inner leaf wall, a large number of steel meshes greatly increase the position of thermal bridges, which seriously reduces the thermal insulation performance of the building, and does not meet the main technical requirements for the design of ultra-low energy buildings without thermal bridges, and thermal bridges are very important for ultra-low energy consumption The impact of architecture is even more pronounced. Article 35 of Chapter 3 (3) of the "Technical Guidelines for Passive Ultra-Low Energy Green Buildings" requires that the generation of thermal bridges should be strictly controlled, and the building envelope should be designed without thermal bridges, and it is currently applicable to low poly The construction of the sandwich insulation wall structure of multi-storey energy-saving buildings is more difficult and costly, and it also relies heavily on the strength of technical personnel and supervisory personnel.

Utility model content

(1) Technical problems to be solved

The purpose of this utility model is to solve the technical problems of poor thermal insulation performance and difficult construction due to the large number of structural thermal bridges in the energy-saving buildings with traditional sandwich insulation wall structures in the low-level and multi-storey existing technologies, and provide a Sandwich insulation structure system required by ultra-low energy consumption buildings.

(2) Technical solution

Aiming at the technical problems existing in the prior art, the utility model provides a sandwich insulation structure system that meets the requirements of ultra-low energy consumption buildings, including: an inner leaf wall, an insulation core layer and an outer leaf wall arranged sequentially from the inside to the outside; It includes: cantilever beams, the two ends of the cantilever beams respectively cross the heat insulation core layer and extend into the inner leaf wall and the outer leaf wall, so as to connect the inner leaf wall and the outer leaf wall.

Further, the cantilever beam extends from the inner leaf wall into the outer leaf wall and is connected with the edge beam embedded in the outer leaf wall.

Further, the outer leaf wall is provided with a first thermal insulation structure, and the first thermal insulation structure extends the cantilever beam into the outer leaf wall and the connection node between the cantilever beam and the side beam Fully wrapped.

Further, the first thermal insulation structure adopts an integrated material of structure and thermal insulation, preferably thermal insulation blocks.

Further, the outer leaf wall is further provided with a second thermal insulation structure, and the second thermal insulation structure is arranged between the first thermal insulation structure and the outer end surface of the outer leaf wall.

Further, the second thermal insulation structure is a high-efficiency thermal insulation material, preferably a vacuum insulation panel.

Further, the thermal insulation core layer can be determined according to engineering practice, and is preferably a graphite polystyrene board.

Further, the outer leaf wall is a wall made of brick masonry, aerated concrete block or ALC board; the inner leaf wall is a shale porous brick masonry, aerated concrete block or reinforced concrete wall .

Further, the inner wall located in the indoor space inside the inner leaf wall is arranged along the cantilever beam, and the cantilever beam is embedded in the inner wall as a supporting beam structure of the inner wall.

Further, the floor in the indoor space inside the inner leaf wall is arranged along the cantilever, and the floor is arranged transversely on the top of the cantilever.

(3) Beneficial effects

The utility model provides a sandwich thermal insulation structure system that meets the requirements of ultra-low energy consumption buildings. The outer leaf wall and the inner leaf wall are connected and fixed by using cantilever beams. Compared with the core insulation wall, there are fewer thermal bridges, and it has good insulation performance, which can ensure that the temperature difference between the inner surface in winter does not exceed 3°, and meets the ultra-low energy consumption building standards and green building standards; on the other hand, the outer leaf wall and the inner The leaf walls are connected by cantilever beams, avoiding the use of more connecting components between the outer leaf wall and the inner leaf wall. The connection here can fully ensure the continuity of the insulation core layer through the compensation of efficient insulation materials, and there will be no structural thermal bridges , to ensure good thermal insulation performance and thermal insulation durability, and a wide range of thermal insulation materials can be selected, simple construction, and flexible dismantling of the structure. When dismantling, thermal insulation materials and some building materials can be recycled again to achieve deep green environmental protection.

Description of drawings

Fig. 1 is a left view structural diagram of an embodiment of the sandwich insulation structure system meeting the requirements of ultra-low energy consumption buildings of the present invention;

Fig. 2 is a front view structural diagram of an embodiment of the sandwich insulation structure system meeting the requirements of ultra-low energy consumption buildings of the present invention;

Fig. 3 is a partially enlarged axial schematic diagram of the sandwich insulation structure system of the present invention meeting the requirements of ultra-low energy consumption buildings.

in:

1: Outer leaf wall; 2: Edge beam; 3: The first thermal insulation structure;

4: Second thermal insulation structure; 5: Inner leaf wall; 6: Cantilever beam;

7: floor slab; 8: interior wall; 9: insulation core layer.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Fig. 1 shows the left-view structure schematic diagram of an embodiment of the sandwich insulation structure system meeting the requirements of ultra-low energy consumption buildings of the present invention, and Fig. 2 shows the implementation of the sandwich insulation structure system of the utility model meeting the requirements of ultra-low energy consumption buildings Figure 3 is a partially enlarged axial side view of the sandwich insulation structure system of the utility model that meets the requirements of ultra-low energy consumption buildings. As shown in Figure 1-3, the utility model includes: the inner leaf wall 5, the insulation core layer 9 and the outer leaf wall 1 arranged sequentially from the inside to the outside; The thermal insulation core layer 9 extends into the inner leaf wall 5 and the outer leaf wall 1 to connect the inner leaf wall 5 and the outer leaf wall 1 .

Among them, the outer leaf wall 1 is mainly used as an external protective insulation layer and a self-supporting wall, which can be made of brick masonry, aerated concrete block or ALC board, etc. service life, and wall corrosion resistance. The decoration materials on the outer surface can be selected independently, and clear water brick walls can also be used. On the one hand, clear water brick walls can be air-dried by themselves, and no condensation will be generated inside the wall. The wall has good anti-mildew and heat preservation effects. The wall has traditional architectural charm, which can improve the appearance of the building.

As the load-bearing wall, the inner leaf wall 5 can adopt brick-concrete structure, frame structure or shear wall structure, specifically can adopt shale porous brick, reinforced concrete structure or frame structure, such as sintered shale brick, sintered shale brick is a A new type of building energy-saving wall material, which can be used as a masonry load-bearing wall, and has good thermal performance, with a porosity of more than 35%, which can reduce the weight of the wall and save basic engineering costs; compared with ordinary sintered porous bricks, It has the characteristics of heat preservation, heat insulation, light weight, high strength and efficient construction.

The outer leaf wall 1 and the inner leaf wall 5 are arranged relatively parallel, and the cavity between the two is filled with an insulating material to form an insulating core layer 9. The insulating material can be selected from any insulating material on the market according to the actual needs of the project. This embodiment uses Graphite polystyrene board. Graphite polystyrene board is a further refined product of expanded polystyrene through chemical methods. It contains special graphite particles and infrared absorbers, which can reflect thermal radiation and absorb thermal infrared rays. It has strong thermal insulation performance and high Fireproof performance and anti-mildew insulation performance.

The cantilever beam 6 is made of reinforced concrete and is used to connect the outer leaf wall 1 and the inner leaf wall 5 . The cantilever beam 6 is arranged between the outer leaf wall 1 and the inner leaf wall 5, crosses the insulation core layer 9, and its two ends extend into the outer leaf wall 1 and the inner leaf wall 5 respectively, so as to tie the outer leaf wall 1 effectively. The outer leaf wall 1 and the inner leaf wall 5 are only connected by cantilever beams 6, avoiding the use of more connecting members between the outer leaf wall 1 and the inner leaf wall 5, which can fully ensure the continuity of the thermal insulation core layer 9,

The outer leaf wall 1 and the inner leaf wall 5 of the traditional sandwich insulation wall are connected and fixed by multiple tie steel bars, and there are many structural thermal bridges, resulting in poor thermal insulation performance. However, this embodiment only uses cantilever beams 6 Connecting and fixing the outer leaf wall 1 and the inner leaf wall 5, on the one hand, the structural thermal bridge generated is only a rectangular beam head. The surface temperature difference does not exceed 3°, which meets the ultra-low energy consumption building standards and green building standards; The use of more connecting components can fully ensure the continuity of the thermal insulation core layer 9 without structural thermal bridges, ensuring good thermal insulation performance and durability, and the selection of thermal insulation materials is wide, the construction is simple, and it can be flexibly dismantled The structure can be decomposed, and the insulation materials and some building materials can be recycled again when dismantling, realizing deep green environmental protection.

On the basis of the above-mentioned embodiments, in this embodiment, the outer leaf wall 1 is embedded with a side beam 2 , and the cantilever beam 6 extends from the inner leaf wall 5 into the outer leaf wall 1 and connects with the side beam 2 . The cantilever 6 can reduce the calculated height of the wall body and ensure the strength and stability of the outer leaf wall 1 under the action of self-weight load. A vertical structural column can be arranged at the end of the cantilever beam 6 to ensure the strength of the outer leaf wall 1 under the action of horizontal wind load and the integrity under the action of earthquake. High-efficiency thermal insulation materials can be set around the cantilever 6 to reduce heat loss. The structure in which the cantilever beam 6 and the edge beam 2 are embedded and connected can ensure the stability of the outer leaf wall 1 . Further, the inner wall 8 located in the indoor space inside the inner leaf wall 5 can be arranged along the cantilever beam 6, and the cantilever beam 6 is embedded in the inner wall 8 as a supporting beam structure of the inner wall 8, the outer leaf wall 1, the inner leaf wall 5 The side beams 2, the cantilever beams 6 and the inner wall 8 are connected to each other to form a stable inner wall structure system, which can enhance the load-bearing function of the inner wall 8. Similarly, the floor slab 7 located indoors can also be arranged along the cantilever beam 6, and the floor slab 7 is arranged on the top of the cantilever beam 6, and the cantilever beam 6 can be used as a load-bearing beam to enhance the support stability of the floor slab 7.

Based on the above embodiment, in this embodiment, the outer leaf wall 1 is provided with a first thermal insulation structure 3, and the first thermal insulation structure 3 extends the part of the cantilever 6 into the outer leaf wall 1 and the connection between the cantilever 6 and the edge beam 2. Connection nodes fully wrapped. Among them, the first thermal insulation structure 3 can adopt the integrated structure and thermal insulation material (such as thermal insulation block), and the area covered by its side is larger than the area of one end end surface of the cantilever 6 extending into the outer leaf wall 1 (the specific size should be based on the actual project energy saving determined by calculation), the cantilever beams 6 and connecting nodes in the outer leaf wall 1 can be fully wrapped in the thermal insulation material, and the steel-concrete structure can be fully insulated, which can effectively reduce the heat in the outer leaf wall 1 and the inner leaf wall 5 Structural thermal bridges improve the thermal insulation performance of the outer leaf wall 1.

Further, the outer leaf wall 1 is also provided with a second thermal insulation structure 4, the second thermal insulation structure 4 is arranged between the first thermal insulation structure 3 and the outer end surface of the outer leaf wall 1, where the cantilever 6 connects the inner leaf wall 5 It is effectively tied with the outer leaf wall 1, and the outer edge line of the cantilever 6 is inside the outer edge line of the outer leaf wall 1, and there is a certain distance from the outer edge line. The second thermal insulation structure 4 is set here from the gap, and the specific height of the second thermal insulation structure 4 is, The width dimension should be determined according to the actual project energy saving calculation. Wherein, the second thermal insulation structure 4 may use a vacuum insulation panel, or other high-efficiency thermal insulation materials. The second thermal insulation structure 4 can be designed to have the same thickness as the outer leaf wall 1, and the first thermal insulation structure 3 and the second thermal insulation structure 4 constitute the thermal insulation structure in the outer leaf wall 1. The connection node between beam 6 and side beam 2 is fully wrapped.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. A sandwich heat-insulating structural system meeting the requirement of ultra-low energy consumption buildings is characterized by comprising: the inner leaf wall, the heat preservation core layer and the outer leaf wall are sequentially arranged from inside to outside; further comprising: and two ends of the cantilever beam respectively transversely penetrate through the heat insulation core layer and extend into the inner leaf wall and the outer leaf wall to connect the inner leaf wall and the outer leaf wall.

2. The sandwich insulation structural system meeting the ultra-low energy consumption building requirement of claim 1, wherein the cantilever beams extend from the outer leaf wall to the inner leaf wall and are connected with the edge beams embedded in the outer leaf wall.

3. The sandwich insulation structure system meeting the ultra-low energy consumption building requirement of claim 2, wherein a first insulation structure is arranged in the outer leaf wall, and the first insulation structure fully wraps the part of the outrigger extending into the outer leaf wall and the connecting node of the outrigger and the boundary beam.

4. The sandwich insulation structural system meeting the ultra-low energy consumption building requirements of claim 3, wherein the first insulation structure is formed by insulation blocks.

5. The sandwich insulation structure system meeting the ultra-low energy consumption building requirements of claim 3, wherein a second insulation structure is further arranged in the outer leaf wall, and the second insulation structure is arranged between the first insulation structure and the outer end face of the outer leaf wall.

6. The sandwich thermal insulation structure system meeting the requirement of ultra-low energy consumption buildings according to claim 5, wherein the second thermal insulation structure is a vacuum thermal insulation panel.

7. The sandwich thermal insulation structural system meeting the ultra-low energy consumption building requirements of claim 1, wherein the thermal insulation core layer is a graphite polystyrene board.

8. The sandwich thermal insulation structure system meeting the requirement of the ultralow-energy-consumption building as claimed in claim 1, wherein the outer leaf wall is a wall body made of brick masonry, aerated concrete blocks or ALC plates; the inner leaf wall is a shale porous brick masonry, an aerated concrete block or a reinforced concrete wall.

9. The sandwich insulation structural system meeting the ultra-low energy consumption building requirements of claim 1, wherein the inner wall located in the indoor space inside the inner leaf wall is arranged along the outriggers embedded in the inner wall as a support beam structure of the inner wall.

10. the sandwich insulation structural system meeting the ultra-low energy consumption building requirement of claim 1, wherein a floor slab located in the indoor space inside the inner leaf wall is disposed along the outriggers, and the floor slab is disposed transversely on top of the outriggers.