A new type of heat insulation connecting structure for roof of near zero energy consumption building

Abstract

This utility model discloses a novel thermal insulation connection structure for roofs of near-zero energy buildings, belonging to the field of near-zero energy building technology. The structure is installed on the roof panel of a near-zero energy building and includes a first concrete layer, a thermal insulation connector, stainless steel bolts, an insulation material layer, and a second concrete layer. The first concrete layer is installed on the roof panel. The thermal insulation connector is installed above the roof panel before the first concrete layer is poured, and through holes for the support rods are spaced apart on the thermal insulation connector. A second waterproof layer, an insulation material layer, the first waterproof layer, and the second concrete layer are sequentially installed above the first concrete layer; the second concrete layer slopes outwards from near the thermal insulation connector, forming a sloping structure; the stainless steel bolts are vertically installed and pass through the second concrete layer and the insulation material layer into the thermal insulation connector. The thermal insulation connection structure provided by this utility model reduces costs and ensures the reliability and durability of the thermal insulation effect.

Description

Technical Field

[0001] This utility model belongs to the field of near-zero energy building technology, specifically relating to a novel thermal insulation connection structure for the roof of near-zero energy buildings. Background Technology

[0002] Near-zero energy buildings, as an emerging architectural concept, are gradually gaining widespread attention. The core objective of these buildings is to minimize energy consumption and maximize energy efficiency. As a key component of near-zero energy buildings, the design and construction quality of the roof has a significant impact on the overall energy performance of the building.

[0003] Thermal insulation connection methods are a crucial aspect of roof design. Proper thermal insulation connections ensure the continuity and integrity of the roof insulation layer, thus preventing thermal bridging. Thermal bridging refers to the phenomenon where heat is transferred through weak points in the insulation layer due to discontinuities or improper connections, which not only reduces insulation effectiveness but can also lead to leaks. Therefore, researching roof thermal insulation connection methods is of great significance for near-zero energy buildings.

[0004] Existing conventional roof connection methods only need to consider connection stability and meet the basic requirements of building structure, but they are inadequate in terms of thermal insulation performance. Conventional roof connection methods not only easily lead to discontinuities in the insulation layer, but also allow heat to easily transfer through weak points in the insulation layer, resulting in thermal bridging. Currently, some near-zero energy buildings are also facing numerous problems when attempting to adopt near-zero energy thermal insulation connection methods. On the one hand, improper connection occurs in actual operation, causing the thermal insulation connection to fail to achieve the expected results. On the other hand, the construction process is cumbersome and complex, requiring precise process control and strict construction management. However, in actual construction sites, there are often various uncertainties, such as weather changes, unstable material supply, and construction equipment failures. These factors can all lead to the inability to effectively guarantee the quality of the thermal insulation connection, rendering it ineffective and significantly hindering the promotion and application of near-zero energy buildings. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a novel thermal insulation connection structure for roofs of near-zero energy buildings.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] This utility model provides a novel thermal break connection structure for the roof of a near-zero energy building, which is installed on the roof panel of a near-zero energy building and includes a first concrete layer, a thermal break connector, a stainless steel screw, a thermal insulation material layer and a second concrete layer.

[0008] The first concrete layer is placed on the roof panel; the thermal break connector is placed above the roof panel before the first concrete layer is poured, and several through holes for the support rods are opened at intervals on the thermal break connector; after the first concrete layer has cured, the support rods reinforce the support of the thermal break connector; an insulation material layer is placed above the first concrete layer; a second concrete layer is placed above the insulation material layer; the second concrete layer slopes outward from the area near the thermal break connector, forming a sloping structure; the stainless steel screw is vertically arranged and passes through the second concrete layer, the insulation material layer and the thermal break connector; a first waterproof layer is placed between the insulation material layer and the second concrete layer, and a second waterproof layer is placed between the first concrete layer and the insulation material layer.

[0009] Preferably, the heat-insulating connector is made of glass fiber epoxy resin material.

[0010] Preferably, the length of the support rod is greater than the thickness of the heat-insulating connector.

[0011] Preferably, the support rod is made of steel reinforcement.

[0012] Preferably, the insulation material layer is made of graphite polystyrene board; the apparent density of the graphite polystyrene board is ≥22kg / m³. 3 The tensile strength perpendicular to the direction of the graphite polystyrene board is ≥0.1MPa.

[0013] Preferably, the first concrete layer is poured using C30 fine aggregate concrete.

[0014] Preferably, the second concrete layer is poured using C20 fine aggregate concrete.

[0015] Preferably, the slope of the slope structure is set to 2% to 3% to avoid water accumulation at the thermal break connection structure above the roof panel.

[0016] Preferably, the first waterproof layer is a polyester-reinforced SBS modified bitumen waterproof membrane with SPT slate surface and reinforcing ribs.

[0017] Preferably, the second waterproof layer is made of TSU reinforced fiberglass fireproof SBS modified bitumen self-adhesive waterproof membrane.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] (1) This utility model, through its unique design, integrates multiple components, including a first concrete layer, a thermal break connector, a stainless steel screw, an insulation material layer, and a second concrete layer, to effectively achieve the thermal break function. After the first concrete layer has cured, the support rod strengthens the support for the thermal break connector, ensuring the stability of the entire thermal break connection structure during building use and preventing thermal bridging, thus guaranteeing the reliability and durability of the thermal break effect.

[0020] (2) The thermal break connection structure provided by this utility model has a simple box design, which is easy to construct and operate. Construction personnel can first set up the first concrete layer, then set up the thermal break connector in the appropriate position and pour the first concrete layer. After it has cured, the second waterproof layer, the insulation material layer, the first waterproof layer and the second concrete layer are laid in sequence, and the relevant fixing operations are carried out. Construction personnel can get started quickly, which greatly improves the installation efficiency, shortens the construction cycle, and helps to accelerate the construction progress of near-zero energy buildings.

[0021] (3) In terms of material selection, compared with traditional steel parts, stainless steel screws have excellent corrosion resistance and are not easily damaged by rust; while glass fiber epoxy resin has good wear resistance and can resist the influence of various external friction and wear factors, thereby effectively extending the service life of the entire thermal break connection structure, greatly improving its durability, and reducing the maintenance and replacement costs in the later stage.

[0022] (4) According to professional calculations, the overall cost of this utility model is half that of traditional thermal break components, which greatly reduces the cost of thermal break bridges. This significant cost advantage is mainly due to reasonable design optimization and material selection. While ensuring thermal break effect and structural performance, it reduces the amount of materials used and cost input, providing a more cost-effective thermal break connection solution for the widespread application of near-zero energy buildings. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the connection structure provided in this embodiment;

[0024] Figure 2 This is a side view of the thermal break connector in this embodiment;

[0025] In the diagram: 1. Roof panel; 2. First concrete layer; 3. Insulation material layer; 4. Second concrete layer; 5. Slope structure; 6. Thermal break connector; 7. Support rod; 8. Stainless steel screw rod; 9. First waterproof layer; 10. Second waterproof layer. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. Technical features in various embodiments of this utility model can be combined appropriately without conflict.

[0027] In the description of this utility model, it should be understood that the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include at least one of those features.

[0028] like Figure 1 As shown, as a preferred embodiment of this utility model, this embodiment provides a novel thermally insulated connection structure for the roof of a near-zero energy building. This thermally insulated connection structure is installed on the roof panel 1 of the near-zero energy building and includes a first concrete layer 2, a thermally insulated connector 5, a stainless steel screw 6, an insulation material layer 3, a second concrete layer 4, a support rod 5-1, a first waterproof layer 7, and a second waterproof layer 8.

[0029] In the structure provided in this embodiment, the first concrete layer 2 is set on the roof panel 1. The first concrete layer 2 can be poured using C30 fine aggregate concrete. When pouring the first concrete layer 2, a protruding part is left in the middle for installing the thermal break connector 5. The thermal break connector 5 is set above the roof panel 1 before the first concrete layer 2 is poured. In this embodiment, the thermal break connector 5 is made of glass fiber epoxy resin material. Both glass fiber and epoxy resin are poor conductors of heat. The thermal break connector made of glass fiber epoxy resin material can reduce heat loss to the outside through the connector, helping to maintain the indoor temperature and reduce energy consumption. In addition, the thermal break connector in the building structure needs to bear a certain load. Glass fiber itself is a high-strength inorganic non-metallic material that can withstand large tensile and compressive forces, while epoxy resin, as the matrix material, bonds the glass fiber together, making the entire connector a solid whole. The high strength of the glass fiber epoxy resin material ensures that it will not be easily damaged by external forces during long-term use.

[0030] like Figure 2As shown, the thermal break connector 5 provided in this embodiment also has three through holes spaced apart for the support rod 5-1 to pass through. The support rod 5-1 can be made of steel reinforcement commonly used on construction sites, and the length of the steel reinforcement is greater than the thickness of the thermal break connector 5. Before pouring the first concrete layer 2, the thermal break connector 5 is pre-embedded in the first concrete layer 2, and then the three steel bars are inserted into the through holes of the thermal break connector 5 respectively. After the C30 fine stone concrete in the first concrete layer 2 has cured, the steel bars can effectively ensure that the thermal break connector 5 is fully connected to the concrete. In this way, the force of the thermal break connector 5 can be smoothly transferred to the main structure, and the thermal break connector 5 itself will not be displaced due to various external forces acting on the upper connecting equipment.

[0031] When installing the glass fiber epoxy resin thermal break connector 5, two stainless steel screws 6 are vertically inserted into it. The protruding height of the stainless steel screws 6 should still allow space for the installation of the insulation material layer 3 and the second concrete layer 4. The heat transfer coefficient of stainless steel is one-quarter that of traditional steel components, and the stainless steel screws also provide sufficient protection against shear forces at this location.

[0032] In the structure provided in this embodiment, a second waterproof layer 8 is installed on the first concrete layer 2. The second waterproof layer 8 uses TSU reinforced fiberglass-reinforced fire-resistant SBS modified bitumen self-adhesive waterproof membrane, a high-performance waterproof material composed of reinforced fiberglass, SBS modified bitumen, release agent, and self-adhesive. After the second waterproof layer 8 is laid, a thermal insulation layer 3 is installed on top. The thermal insulation layer 3 uses high-density graphite polystyrene board. It should be noted that the apparent density of the high-density graphite polystyrene board used is ≥22 kg / m³. 3 The tensile strength perpendicular to the direction of the graphite polystyrene board is ≥0.1 MPa. The thermal conductivity of the graphite polystyrene board is lower than that of ordinary polystyrene board, effectively blocking heat transfer. Furthermore, the graphite polystyrene board has good fire resistance, good compressive strength, and waterproof performance. It should be noted that this invention does not limit the specific insulation material used in the insulation layer or its thickness; those skilled in the art can adjust it according to the actual surface layer construction.

[0033] In the structure provided in this embodiment, a first waterproof layer 7 is provided above the insulation material layer 3. The first waterproof layer 7 is a polyester-based SBS modified bitumen waterproof membrane with reinforcing ribs and an SPT slate surface. This is a waterproof material with excellent comprehensive performance, composed of SBS modified bitumen, polyester base, reinforcing ribs, and slate surface. After the first waterproof layer 7 is laid, a second concrete layer 4 is provided on top. The second concrete layer 4 can be poured using C20 fine aggregate concrete. It should be noted that when pouring the second concrete layer 4, a slope structure 4-1 that slopes outward from near the thermal break connector 5 needs to be set to prevent water accumulation at the thermal break connector above the roof panel 1. In this embodiment, the slope of the slope structure 4-1 is set to 2%. Those skilled in the art can set the slope to 2% to 3% according to the actual situation. After the thermal break connector is set, the stainless steel screw 6 passes through the second concrete layer 4 and the insulation material layer 3 into the thermal break connector 5.

[0034] The embodiments described above are merely preferred solutions of this utility model, and are not intended to limit the scope of this utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this utility model. Therefore, all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A new type of thermal break connection structure for the roof of a near zero energy building, which is arranged on the roof panel (1) of a near zero energy building, characterized in that, It includes a first concrete layer (2), a thermal break connector (5), a stainless steel screw (6), a thermal insulation material layer (3), and a second concrete layer (4); The first concrete layer (2) is set on the roof panel (1); the thermal break connector (5) is set above the roof panel (1) before the first concrete layer (2) is poured, and several through holes for the support rod (5-1) are opened at intervals on the thermal break connector (5); after the first concrete layer (2) is cured, the support rod (5-1) strengthens the support of the thermal break connector (5); the first concrete layer (2) is set above the thermal insulation material layer (3); the thermal insulation material layer (3) is set above the thermal insulation material layer (3); the second concrete layer (4) is set above the thermal insulation material layer (3); the second concrete layer (4) is inclined outward from the thermal break connector (5) and has a slope structure (4-1); the stainless steel screw (6) is set vertically and passes through the second concrete layer (4), the thermal insulation material layer (3) and the thermal break connector (5); the thermal insulation material layer (3) and the second concrete layer (4) are set together with a first waterproof layer (7) and the second concrete layer (4), and the first concrete layer (2) and the thermal insulation material layer (3) are set together with a second waterproof layer (8).

2. A novel thermal break connection structure for use in a roof of a near zero energy building according to claim 1, characterized in that, The heat-insulating connector (5) is made of glass fiber epoxy resin.

3. The novel thermal break connection for roof of NZEB building as claimed in claim 1, wherein, The length of the support rod (5-1) is greater than the thickness of the heat-insulating connector (5).

4. The novel thermal break connection for roofing of NZEB suitable, according to claim 1, wherein, The support rod (5-1) is made of steel reinforcement.

5. The novel thermal break connection for roof of NZEB building as claimed in claim 1, wherein, The heat preservation material layer (3) adopts graphite polystyrene board; the apparent density of the graphite polystyrene board is greater than or equal to 22 kg / m 3 , and the tensile strength perpendicular to the direction of the graphite polystyrene board is greater than or equal to 0.1 MPa.

6. The novel thermal break connection for roofing of NZEB suitable, according to claim 1, wherein, The first concrete layer (2) is poured with C30 fine aggregate concrete.

7. The novel thermal break connection for roofing of NZEB suitable, according to claim 1, wherein, The second concrete layer (4) is poured with C20 fine aggregate concrete.

8. The novel thermal break connection for roofing of NZEB suitable, according to claim 1, wherein, The slope of the slope structure (4-1) is set to 2% to 3% to avoid water accumulation at the thermal break connection structure above the roof panel (1).

9. The novel thermally broken roof connection structure for near-zero energy buildings according to claim 1, characterized in that, The first waterproof layer (7) is made of SPT slate surface polyester-based SBS modified bitumen waterproof membrane with reinforcing ribs.

10. A novel thermal break connection structure for use in a roof of a near zero energy building according to claim 1, characterized in that, The second waterproof layer (8) is made of TSU reinforced fiberglass fireproof SBS modified bitumen self-adhesive waterproof membrane.

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