Prefabricated steel structure heat break pre-embedded part

Abstract

The application relates to the technical field of fabricated steel structure buildings, and particularly discloses a fabricated steel structure heat insulation embedded part, which comprises a connecting plate, a glass fiber reinforced plastic block and a stainless steel ribbed steel bar, one end of the glass fiber reinforced plastic block is in abutment with the connecting plate, the other end of the glass fiber reinforced plastic block is in abutment with the outer wall of a main body structure concrete layer, and the stainless steel ribbed steel bar is fixedly connected with the connecting plate through the glass fiber reinforced plastic block; one end of the stainless steel ribbed steel bar, which is away from the connecting plate, is embedded in the main body structure concrete layer, and one end of the connecting plate, which is away from the glass fiber reinforced plastic block, is used for fixedly connecting with external equipment. The application avoids the direct contact between the connecting plate and the main body structure concrete layer, effectively reduces the heat transfer between the connecting plate and the main body structure concrete layer, reduces the thermal bridge effect at the embedded part, and enhances the energy-saving performance of the fabricated steel structure building.

Description

Technical Field

[0001] This application relates to the technical field of prefabricated steel structure buildings, and in particular to prefabricated steel structure thermal insulation embedded parts. Background Technology

[0002] Steel structure buildings are one of the building structure forms that my country has explicitly mandated to develop vigorously. They can be divided into traditional steel structure buildings and prefabricated steel structure buildings. Steel structure buildings have advantages such as mature structural design, convenient production, comprehensive construction measures, fast construction period, light weight, low waste emissions, and good durability. Their application in industrial and civil-industrial buildings in my country is already very widespread. At the same time, steel structure buildings have lower carbon emissions compared to concrete buildings. In recent years, the intensity of technological research and development and project implementation of steel structures has been increasing, and they are occupying an increasingly important position in my country's construction industry.

[0003] In prefabricated steel structure buildings, energy conservation requirements are becoming increasingly stringent, with ultra-low energy consumption and near-zero energy consumption being proposed successively. To further improve the energy-saving performance of prefabricated steel structures, innovative steel structure connection nodes are being developed to reduce heat dissipation through thermal bridges.

[0004] In related technologies, the embedded parts include steel plates and carbon steel ribbed bars, which are directly connected. The carbon steel ribbed bars are embedded in the main structural concrete layer, while the steel plate is fixedly connected to the external equipment. This is equivalent to the steel plate of the embedded part being directly exposed to the outside, allowing the steel plate to directly transfer heat to the main structural concrete layer. Furthermore, the heat transfer coefficient of carbon steel is generally 60 W / (m²). 2 (·K), has strong heat transfer properties and is one of the most significant thermal bridges in a building. Utility Model Content

[0005] In order to reduce heat transfer at the embedded parts and reduce the thermal bridging effect, this application provides prefabricated steel structure thermal insulation embedded parts.

[0006] The prefabricated steel structure thermal insulation embedded component provided in this application adopts the following technical solution:

[0007] The prefabricated steel structure thermal insulation embedded component includes a connecting plate, a fiberglass block, and stainless steel ribbed steel bars. One end of the fiberglass block abuts against the connecting plate, and the other end of the fiberglass block abuts against the outer wall of the main structure concrete layer. The stainless steel ribbed steel bars pass through the fiberglass block and are fixedly connected to the connecting plate. The end of the stainless steel ribbed steel bars facing away from the connecting plate is embedded in the main structure concrete layer, and the end of the connecting plate facing away from the fiberglass block is used for fixed connection with external equipment.

[0008] By adopting the above technical solution, the fiberglass block avoids direct contact between the connecting plate and the main structural concrete layer, and the heat transfer coefficient of the fiberglass material is 0.25 W / (m²).2 By placing fiberglass blocks between the connecting plate and the main structural concrete layer (·K), heat transfer between the connecting plate and the main structural concrete layer is effectively reduced; meanwhile, the stainless steel ribbed steel bars have a small penetration area, and the heat transfer coefficient of stainless steel is 15W / (m²). 2 •K), which can reduce the thermal bridging effect at embedded parts and enhance the energy-saving performance of prefabricated steel structure buildings.

[0009] Optionally, the stainless steel ribbed steel bars are fixedly connected by welding.

[0010] By adopting the above technical solution, the welding method has high connection strength, realizing a stable connection between the stainless steel ribbed steel bar and the connecting plate; and ensuring the overall structural stability of the embedded parts when subjected to large external forces.

[0011] Optionally, the end of the stainless steel ribbed steel bar away from the connecting plate is bent.

[0012] By adopting the above technical solution, bending helps to increase the anchorage length between the stainless steel ribbed steel bars and the main structural concrete layer, reduce the risk of the stainless steel ribbed steel bars slipping or being pulled out in the main structural concrete layer, and enhance the stability and safety of the overall structure.

[0013] Optionally, the end of the stainless steel ribbed steel bar away from the connecting plate is bent away from the central axis of the connecting plate.

[0014] By adopting the above technical solution, the force can be dispersed and the construction is relatively convenient.

[0015] Optionally, the end of the stainless steel ribbed steel bar away from the connecting plate is bent at 90°.

[0016] By adopting the above technical solution, bending the stainless steel ribbed steel bars at 90° helps to enhance anchorage performance and adapt to complex connection requirements.

[0017] Optionally, at least four stainless steel ribbed steel bars are provided, and the stainless steel ribbed steel bars are symmetrically distributed on both sides of the axis along the axis of the connecting plate.

[0018] By adopting the above technical solution, multiple symmetrically distributed stainless steel ribbed steel bars can effectively share the force borne by the connecting plate, thereby improving the load-bearing capacity and strength of the entire structure.

[0019] Optionally, the cross-sectional area of ​​the fiberglass block is equal to the cross-sectional area of ​​the connecting plate.

[0020] By adopting the above technical solution, the fiberglass block has a larger contact area with the connecting plate and the main structural concrete layer, thereby improving the reliability and stability of the connection.

[0021] Optionally, the connecting plate is made of steel plate.

[0022] By adopting the above technical solutions, the steel plate has high strength and rigidity, can withstand large forces, and ensures the stability and reliability of the overall structure.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Placing fiberglass blocks between the connecting plate and the main structural concrete layer effectively reduces heat transfer between them; simultaneously, the stainless steel ribbed steel bars have a small penetration area, and the heat transfer coefficient of fiberglass material is 0.25 W / (m²). 2 The heat transfer coefficient of stainless steel is 15 W / (m·K). 2 •K), which can reduce the thermal bridging effect at embedded parts and enhance the energy-saving performance of prefabricated steel structure buildings.

[0025] 2. By bending the stainless steel ribbed steel bars at 90°, the anchorage length between the stainless steel ribbed steel bars and the main structural concrete layer is increased, reducing the risk of the stainless steel ribbed steel bars slipping or being pulled out in the main structural concrete layer, and enhancing the stability and safety of the overall structure. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0027] Reference numerals: 1. Connecting plate; 2. Fiberglass block; 3. Stainless steel ribbed steel bar; 4. Main structural concrete layer. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0029] This application discloses prefabricated steel structure thermal insulation embedded parts, referring to... Figure 1 It includes a connecting plate 1, a fiberglass block 2, and a stainless steel ribbed steel bar 3. One end of the fiberglass block 2 abuts against the connecting plate 1, and the other end of the fiberglass block 2 abuts against the outer wall of the main structure concrete layer 4. The stainless steel ribbed steel bar 3 passes through the fiberglass block 2 and is welded to the connecting plate 1. The end of the stainless steel ribbed steel bar 3 facing away from the connecting plate 1 is embedded in the main structure concrete layer 4. The end of the connecting plate 1 facing away from the fiberglass block 2 is used for fixed connection with the equipment on the outside.

[0030] The fiberglass block 2 avoids direct contact between the connecting plate 1 and the main structural concrete layer 4, and the heat transfer coefficient of the fiberglass material is 0.25 W / (m²). 2By placing the fiberglass block 2 between the connecting plate 1 and the main structural concrete layer 4, heat transfer between the connecting plate 1 and the main structural concrete layer 4 is effectively reduced. Meanwhile, the stainless steel ribbed steel bar 3 has a small penetration area, and the heat transfer coefficient of stainless steel is 15 W / (m²). 2 •K), which can reduce the thermal bridging effect at embedded parts and enhance the energy-saving performance of prefabricated steel structure buildings.

[0031] The connecting plate 1 is a rectangular plate structure, and the cross-sectional area of ​​the fiberglass block 2 is equal to that of the connecting plate 1. This allows for a larger contact area between the fiberglass block 2, the connecting plate 1, and the main structural concrete layer 4, thereby improving the reliability and stability of the connection. In this embodiment, the connecting plate 1 is made of steel.

[0032] Four stainless steel ribbed reinforcing bars 3 are provided, symmetrically distributed in pairs on both sides of the axis of the connecting plate 1. The ends of the four stainless steel ribbed reinforcing bars 3 away from the connecting plate 1 are bent at 90° away from the central axis of the connecting plate 1. This helps to increase the anchorage length between the stainless steel ribbed reinforcing bars 3 and the main structural concrete layer 4, reducing the risk of slippage or pull-out of the stainless steel ribbed reinforcing bars 3 in the main structural concrete layer 4, and enhancing the stability and safety of the overall structure. In actual use, the number of stainless steel ribbed reinforcing bars 3 can be adjusted as needed.

[0033] The implementation principle of the prefabricated steel structure thermal insulation embedded part disclosed in this application is as follows: one end of the fiberglass block 2 abuts against the connecting plate 1, and the other end of the fiberglass block 2 abuts against the outer wall of the main structure concrete layer 4. The stainless steel ribbed steel bar 3 passes through the fiberglass block 2 and is fixedly connected to the connecting plate 1. The end of the stainless steel ribbed steel bar 3 facing away from the connecting plate 1 is embedded in the main structure concrete layer 4, and the end of the connecting plate 1 facing away from the fiberglass block 2 is used for fixed connection with the equipment on the outside. This application effectively reduces the heat transfer between the connecting plate 1 and the main structure concrete layer 4. The heat transfer coefficient is reduced by nearly 60%-80% compared with conventional connection nodes, effectively reducing building heat loss, reducing thermal bridge effect, and enhancing the energy-saving performance of prefabricated steel structure buildings.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A prefabricated steel structure thermal insulation embedded component, characterized in that, The system includes a connecting plate (1), a fiberglass block (2), and a stainless steel ribbed steel bar (3). One end of the fiberglass block (2) abuts against the connecting plate (1), and the other end of the fiberglass block (2) abuts against the outer wall of the main structure concrete layer (4). The stainless steel ribbed steel bar (3) passes through the fiberglass block (2) and is fixedly connected to the connecting plate (1). The end of the stainless steel ribbed steel bar (3) facing away from the connecting plate (1) is embedded in the main structure concrete layer (4). The end of the connecting plate (1) facing away from the fiberglass block (2) is used for fixed connection with the equipment on the outside.

2. The prefabricated steel structure thermal insulation embedded part according to claim 1, characterized in that, The stainless steel ribbed steel bars (3) are fixedly connected by welding.

3. The prefabricated steel structure thermal insulation embedded part according to claim 1, characterized in that, The stainless steel ribbed steel bar (3) is bent at the end away from the connecting plate (1).

4. The prefabricated steel structure thermal insulation embedded part according to claim 3, characterized in that, The stainless steel ribbed steel bar (3) is bent away from the connecting plate (1) at one end in a direction away from the central axis of the connecting plate (1).

5. The prefabricated steel structure thermal insulation embedded part according to claim 3, characterized in that, The stainless steel ribbed steel bar (3) is bent at 90° at the end away from the connecting plate (1).

6. The prefabricated steel structure thermal insulation embedded part according to claim 3, characterized in that, At least four stainless steel ribbed steel bars (3) are provided, and the stainless steel ribbed steel bars (3) are symmetrically distributed on both sides of the axis along the axis of the connecting plate (1).

7. The prefabricated steel structure thermal insulation embedded part according to claim 1, characterized in that, The cross-sectional area of ​​the fiberglass block (2) is equal to that of the connecting plate (1).

8. The prefabricated steel structure thermal insulation embedded part according to claim 1, characterized in that, The connecting plate (1) is made of steel plate.

Images