Connecting structure at lower hanging part of PC (Poly Carbonate) wallboard
By creating a notch at one end of the ALC strip and connecting it to the PEC beam, and then filling it with a lower bracket and fine aggregate concrete, the problems of material waste and construction quality at the junction of the ALC strip and the lower bracket were solved, achieving a stable connection and improved fire resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-17
AI Technical Summary
In existing technologies, mismatched cutting at the junction of ALC strips and blocks with the lower hangers leads to material waste and construction quality problems, and inadequate sealing can easily cause quality issues such as voids and hollow areas.
A notch is made at one end of the ALC strip, which is connected to the PEC beam by a clip. The lower hanger and the fixing part are matched and filled with fine stone concrete to form a stable connection structure.
It improves the connection strength and stability between the ALC strip and the lower bracket, reduces material waste, ensures the flexibility of construction operations and sealing effect, and enhances the durability and fire resistance of the components.
Smart Images

Figure CN224002164U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a prefabricated concrete structure, specifically to a connection structure at the lower hanging part of a PC wall panel, belonging to the field of engineering construction technology. Background Technology
[0002] In the field of engineering construction, prefabricated concrete structures, specifically prefabricated exterior wall cladding and embedded systems, feature PC (polycarbonate) exterior wall panels and interior walls filled with masonry blocks or strip panels. This results in two systems: PC exterior wall panels + masonry blocks or PC exterior wall panels + ALC (Alternating Linear Cement) strip panels. In the cladding and embedded system, the embedded parts of the exterior wall panel hangers are pre-embedded on-site within the concrete beams, with relatively flexible placement. The PC exterior wall panels are fixed by on-site welding of the hangers to the embedded parts and adjustment of bolts. The embedded walls are filled with ALC strip panels and masonry blocks. At the junction of the ALC strip panels and masonry blocks with the lower hangers, the ends of the masonry blocks and strip panels are typically cut into irregular shapes for connection and sealing.
[0003] In prefabricated concrete structure external wall systems, at the junction of ALC panels and blocks with the lower hangers, the ends of the blocks and panels are cut into irregular shapes for connection and sealing. While this may not be visually apparent, it actually presents many problems. For example:
[0004] 1. Because the lower bracket and adjusting bolt are irregularly shaped, it is difficult to cut the ends of the blocks and strips into matching shapes. This can easily lead to unsuitability after cutting or damage during the cutting process, resulting in waste of block and strip materials. It may also cause problems such as excessive cutting space and inadequate sealing.
[0005] 2. After the ends of the blocks and slabs are cut and shaped, they are connected to the bottom of the beam. The sealing and filling space is too small, making it difficult to carry out sealing and filling construction or resulting in poor sealing, leading to quality problems such as voids and hollow areas.
[0006] Therefore, in order to solve the above-mentioned technical problems, it is indeed necessary to provide an innovative connection structure for the under-mount component of the PC wall panel to overcome the defects in the prior art. Utility Model Content
[0007] The purpose of this utility model is to provide a connection structure at the bottom of a PC wall panel, which can effectively solve the problems of ALC strips being unsuitable after cutting or being damaged during the cutting process.
[0008] To achieve the above objectives, this utility model adopts a connection structure for the lower bracket of a PC wall panel, including an ALC strip, one end of which has a notch, and the other end of which is connected to a floor slab or beam. The side of the ALC strip near the notch is connected to a PEC beam via a clip. The PEC beam is provided with a lower bracket, the notch and the lower bracket correspond to each other, and a fixing component is installed on the lower bracket. A PC exterior wall is installed on the back of the ALC strip, and the PC exterior wall is fixed to the lower bracket via the fixing component. The space in the notch is filled with a filler.
[0009] By adopting the above technical solution, the clip is rigidly connected to the PEC beam, ensuring the firmness and stability of the ALC strip connection. The notch creates a good operating space for the lower bracket and the fixing component, ensuring the flexibility and convenience of the installation of the lower bracket and the fixing component.
[0010] The connection structure at the lower bracket of the PC wall panel of this utility model is further configured as follows: the lower bracket is an L-shaped plate, one end of the L-shaped plate is fixedly connected to the PEC beam, and the other end of the L-shaped plate has a through groove, which cooperates with the fixing component.
[0011] The connection structure at the lower part of the PC wall panel of this utility model is further configured such that the fixing component is a bolt and nut structure.
[0012] By adopting the above technical solutions, the flexibility of adjustment is improved.
[0013] The connection structure at the lower hanging part of the PC wall panel of this utility model is further configured as follows: ALC strip two is provided on both sides of ALC strip one, ALC strip two is connected to the clip, and the top of ALC strip two is connected to the PEC beam.
[0014] By adopting the above technical solutions, the overall stability is improved.
[0015] The connection structure at the lower hanging part of the PC wall panel of this utility model is further configured such that one end of the clip is U-shaped and the U-shaped end of the clip is away from the PEC beam.
[0016] The connection structure of the PC wall panel under hanger of this utility model is further configured such that the under hanger is located in the middle of the recess.
[0017] By adopting the above technical solution, the lower hanging part is located in the middle of the recess, with a gap reserved around it to provide space for construction operations, thereby ensuring convenient construction operations.
[0018] The connection structure at the lower part of the PC wall panel of this utility model is further configured such that the cross-section of the notch is square.
[0019] The connection structure at the lower part of the PC wall panel of this utility model is further configured such that the filling material is fine stone concrete.
[0020] By adopting the above technical solutions, the filling material reduces the risk of rust and corrosion of exposed steel hangers and bolts, and improves the durability, fire resistance and stability of the connection structure of the components.
[0021] The connection structure at the lower hanging part of the PC wall panel of this utility model is further configured as follows: the ALC strip is connected to the floor slab or beam through an L-shaped clip.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] 1. At the junction of the ALC strip and the lower hanger of this utility model, a single piece of molded ALC strip is used for connection. Both ends of the ALC strip are rigidly connected to the PEC beam using clips, which ensures the firmness and stability of the connection of the ALC strip.
[0024] 2. The recess of the ALC strip of this utility model corresponds to the position of the lower hanging part. The lower hanging part is located in the middle of the recess, and a gap is reserved around it to provide space for construction operation, thereby ensuring convenient construction operation.
[0025] 3. The recessed groove in the ALC strip of this utility model provides a good operating space for adjusting the lower hanger and bolt, ensuring the flexibility and convenience of adjusting the lower hanger and bolt.
[0026] 4. The recess of this utility model is filled and sealed with fine stone concrete in a secondary manner. The fine stone concrete encapsulates the steel lower bracket and bolts, reducing the risk of rust and corrosion of the exposed steel lower bracket and bolts, and improving the durability, fire resistance and stability of the connection structure of the components. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the planar structure of the connection structure at the lower hanging part of the PC wall panel of this utility model.
[0028] Figure 2 This is a cross-sectional view of the connection structure at the lower mounting point of the PC wall panel of this utility model. Detailed Implementation
[0029] Please refer to the instruction manual appendix. Figure 1 To be continued Figure 2As shown, this utility model relates to a connection structure at the lower bracket 6 of a PC wall panel. One end of the ALC strip 1 has a notch 2. In this embodiment, the other end of the ALC strip 1 is connected to the floor slab or beam via an L-shaped clip 5. The side of the ALC strip 1 closest to the notch 2 is connected to the PEC beam 3 via the clip 5. In a preferred embodiment, one end of the clip 5 is U-shaped, with the U-shaped end of the clip 5 away from the PEC beam 3. The clip 5 is rigidly connected to the PEC beam 3, ensuring the firmness and stability of the ALC strip 1 connection. ALC strips 2 4 are provided on both sides of the ALC strip 1. The ALC strips 2 4 are connected to the clip 5, and the top of the ALC strips 2 4 is connected to the PEC beam 3. The ALC strips 2 4 enhance the overall structural stability.
[0030] The PEC beam 3 is equipped with a lower hanger 6, which is an L-shaped plate. One end of the L-shaped plate is fixedly connected to the PEC beam 3, and the other end of the L-shaped plate has a through groove 61. The fastener is a bolt and nut structure 7. One end of the bolt and nut structure 7 is engaged with the through groove 61, and the other end of the bolt and nut structure 7 is engaged with the PC exterior wall 8. The bolt and nut structure 7 has high adjustability.
[0031] The recess 2 corresponds to the L-shaped plate, with the L-shaped plate located in the middle of the recess 2. In this embodiment, the recess 2 has a square cross-section, a length of 250mm, and a width of 200mm, with gaps reserved around its perimeter to provide space for construction operations, thus ensuring convenient construction. The PC exterior wall 8 is located on the back of the ALC strip 1 and is fixed to the L-shaped plate by bolt and nut structure 7. The recess 2 provides good operating space for the L-shaped plate and bolt and nut structure 7, ensuring the proper functioning of the lower hanging component 6. The installation of the fasteners is flexible and convenient. The space in the recess 2 is filled with filler material 9. Filler material 9 reduces the risk of rust and corrosion of exposed steel lower brackets 6 and bolts, and improves the durability, fire resistance and stability of the connection structure of the components. In this embodiment, the filler material 9 is fine stone concrete, which makes the lower brackets 6 and the fasteners tightly connected. The upper end of the recess 2 is connected to the PEC beam 3, and the left, right and lower ends of the recess 2 are connected to the ALC strip 1, thus completing the connection structure at the lower bracket 6 of the PC wall panel.
[0032] The above-described specific embodiments are merely preferred embodiments of this invention and are not intended to limit this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.
Claims
1. A connection configuration at a PC wall panel hanger, characterized by: The utility model provides a kind of PEC beam and ALC strip plate connection structure, including ALC strip plate one, the recess of one end of ALC strip plate one is set, the other end of ALC strip plate one is connected with floor or beam, the side of ALC strip plate one close to recess end is connected with PEC beam by clamping piece, PEC beam is equipped with lower hanging piece, recess and lower hanging piece are mutually corresponding, fixed piece is installed on lower hanging piece, the back of ALC strip plate one is equipped with PC outer wall, PC outer wall is fixed with lower hanging piece by fixed piece, recess space is equipped with filler.
2. The connecting structure at a PC wall panel lower hanging member according to claim 1, characterized by: Lower hanging piece is L-shaped plate, one end of L-shaped plate is fixedly connected with PEC beam, the other end of L-shaped plate is provided with through slot, and the through slot is matched with fixed piece.
3. The connecting structure at the PC wall panel lower hanging piece according to claim 2, characterized in that: Fixed piece is bolt and nut structure.
4. The connecting structure at a PC wall panel lower hanging member according to claim 1, characterized by: Two sides of ALC strip plate one are provided with ALC strip plate two, ALC strip plate two is connected with clamping piece, and the top of ALC strip plate two is connected with PEC beam.
5. The connecting structure at the PC wall panel lower hanging piece according to claim 4, characterized in that: One end of clamping piece is "U” type, and the end of the "U” type of clamping piece is away from PEC beam.
6. The connecting structure at a PC wall panel hanger according to claim 1, wherein: Lower hanging piece is located in the middle position of recess.
7. The connecting structure at the PC wall panel lower hanging piece according to claim 6, characterized in that: The cross section of recess is square.
8. The connecting structure at a PC wall panel lower hanging member according to claim 1, characterized by: Filler is fine stone concrete.
9. The connecting structure at a PC wall panel lower hanging member according to Claim 1, wherein: ALC strip plate one is connected with floor or beam by L-shaped clamping piece.