A keel-free connection structure for wall sandwich panels

Abstract

This utility model relates to the field of sandwich panel technology, specifically to a keel-less connection structure for a wall sandwich panel, comprising multiple vertical frame columns arranged sequentially along a first direction, with multiple sandwich panels installed between adjacent frame columns. The sandwich panels are spliced ​​sequentially between two frame columns from bottom to top, with both ends of the sandwich panels overlapping with adjacent frame columns. Both ends of the sandwich panels are fixed to adjacent frame columns via a vertical row of first connecting holes and connecting nails within the first connecting holes. Adjacent rows of sandwich panels form a joint at the frame column position, and the joint is filled with sealant. A vertically extending decorative panel is provided at the joint, spanning the joint along the first direction. A row of second connecting holes is provided at both ends of the decorative panel along the first direction, with screws installed within the second connecting holes. Both ends of the decorative panel along the first direction are fixed to the frame columns via screws.

Description

Technical Field

[0001] This utility model relates to the field of sandwich panel technology, and in particular to a keel-free connection structure for wall sandwich panels. Background Technology

[0002] In prefabricated metal steel structure building wall cladding systems, metal sandwich panel wall systems are increasingly being used on the exterior walls of buildings. In response to societal demands for energy conservation and emission reduction, modern engineering projects are placing increasingly higher demands on material conservation and energy efficiency in building construction.

[0003] Currently, the installation of metal steel structure wall sandwich panels mostly adopts a structure of horizontal main purlins and vertical secondary purlins. The horizontal main purlins are connected to the purlin brackets on the flange plates of the steel columns by ordinary bolts. The vertical secondary purlins used to fix the sandwich panels are installed between the two horizontal main purlins. The wall sandwich panels are then fixed to the thinner vertical secondary purlins by self-tapping screws.

[0004] The above-mentioned connection structure requires a large amount of wall purlin material, has a slow construction speed, and the connection and fixing effect is not reliable enough. In addition, the assembly error is large when installing metal wall panels, which can easily lead to material waste and increase the construction cost of the project. Utility Model Content

[0005] This utility model provides a keel-free connection structure for wall sandwich panels, which can solve at least one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, one or more embodiments of this utility model provide a keel-free connection structure for wall sandwich panels, including multiple vertical frame columns arranged sequentially along a first direction, multiple sandwich panels installed between adjacent frame columns, the sandwich panels being spliced ​​sequentially between two frame columns from bottom to top, and the two ends of the sandwich panels overlapping with adjacent frame columns respectively.

[0007] Both ends of the sandwich panel are fixed to adjacent frame columns via a vertical row of first connecting holes and connecting nails within those holes. Adjacent rows of sandwich panels form a joint at the frame column location, which is filled with sealant. A vertically extending decorative panel is installed at the joint, spanning the joint along a first direction. A second row of connecting holes is located at each end of the decorative panel along the first direction, and screws are installed within these holes. The decorative panel is fixed to the frame column at both ends along the first direction using screws. Along the first direction, the distance between the connecting nail and the center of the sandwich panel is greater than the distance between the screw and the center of the sandwich panel. The connecting nail is larger than the screw.

[0008] The beneficial effects of one or more of the above technical solutions are as follows:

[0009] (1) This utility model does not require horizontal main purlins and vertical secondary purlins on the wall (i.e., no keel is required), and the frame column can be directly installed with the wall sandwich panel, which is convenient to save on wall metal materials.

[0010] (2) Compared with the traditional structural arrangement where the outer surfaces of horizontal and vertical purlins have a large contact area with the sandwich panel, the direct contact area between the sandwich panel and the frame column in this scheme is smaller, which can reduce the occurrence of cold bridges. In addition to reducing the occurrence of cold bridges on the metal contact surface, the overall building wall surface has better heat insulation, sound insulation and fire resistance performance.

[0011] (3) This utility model omits the use of purlins, which greatly improves the construction progress of the overall wall system on site, improves the overall water tightness and air tightness of the wall system, and prevents leakage.

[0012] (4) In this design, the distance between the connecting nail and the center of the sandwich panel is greater than the distance between the screw and the center of the sandwich panel; the size of the connecting nail is greater than the size of the screw. This arrangement facilitates the staggering of the connecting nail and the screw in the first direction, increases the span of the decorative panel, and reduces the probability of water entering at the joint. Attached image description:

[0013] Figure 1 This is a three-dimensional schematic diagram of the connection between the frame column and the sandwich panel in an embodiment of this utility model.

[0014] Figure 2 This is a top view of the connection between the frame column and the sandwich panel in an embodiment of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the decorative panel in an embodiment of this utility model.

[0016] Figure 4 This is a top view of the frame column in an embodiment of this utility model.

[0017] In the diagram, 201 is the frame column; 202 is the sandwich panel; 203 is the connecting nail; 204 is the decorative panel; 2011 is the flange plate; 2012 is the support plate; 2041 is the cross plate; 2042 is the extension plate; 2043 is the inclined plate; and 2044 is the screw. Detailed Implementation

[0018] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0019] like Figures 1-4As shown, one or more embodiments of this utility model provide a keel-free connection structure for a wall sandwich panel 202, including multiple vertical frame columns 201 arranged sequentially along a first direction, multiple sandwich panels 202 installed between adjacent frame columns 201, the sandwich panels 202 being spliced ​​sequentially between two frame columns 201 in a bottom-up direction, and the two ends of the sandwich panels 202 being overlapped with adjacent frame columns 201 respectively.

[0020] Both ends of the sandwich panel 202 are fixed to the adjacent frame column 201 via a vertical row of first connecting holes and connecting nails 203 within the first connecting holes. Adjacent rows of sandwich panels 202 form a joint at the frame column 201, which is filled with sealant. A vertically extending decorative panel 204 is provided at the joint, spanning the joint along a first direction. A second row of connecting holes is provided at both ends of the decorative panel 204 along the first direction, and screws are installed within the second connecting holes. Both ends of the decorative panel 204 along the first direction are fixed to the frame column 201 by screws. Along the first direction, the distance between the center of the connecting nail 203 and the center of the sandwich panel 202 is greater than the distance between the center of the screw and the center of the sandwich panel 202. The size of the connecting nail 203 is larger than the size of the screw.

[0021] In this embodiment, each sandwich panel 202 is an independent prefabricated unit wall panel. The keel-less connection structure of the wall sandwich panel 202 of this utility model allows the wall panel to directly bear the force on the steel structure frame column 201. The force transmission path is the simplest and most efficient, which can make the wall surface obtain better heat insulation, sound insulation and fire resistance, save wall building materials, and at the same time be environmentally friendly and aesthetically pleasing.

[0022] Specifically, the decorative panel 204 here is an aluminum-zinc coated steel sheet. The aforementioned frame column 201 is a steel structure building frame column 201 that is prefabricated in the factory and installed on site.

[0023] In this embodiment, the frame column 201 has an I-shaped cross-section and includes two flange plates 2011 arranged side by side, with a support plate 2012 vertically fixed between the two flange plates 2011. The flange plates 2011 are used to fix to the sandwich panel 202.

[0024] In other embodiments, the frame column 201 can be other shapes such as rectangular tubes, which can be set by those skilled in the art.

[0025] In this embodiment, the sandwich panel 202 is a rock wool sandwich panel 202. The rock wool sandwich panel 202 is a factory-prefabricated panel composed of two outer steel plates coated with a middle structural rock wool core. Its length is the spacing between one or more spans of frame columns 201. The mechanical properties of the core material of the sandwich panel 202 directly determine the shear and compressive bearing capacity of the panel and control the buckling of the panel. Especially when structural rock wool is used as the core material of the sandwich panel 202, it has excellent elastic modulus and good adaptability to the slight deformation of the metal panel. Even under point loads, it can fully utilize the overall performance of the composite material, providing stronger bending and shear bearing capacity for the overall sandwich panel 202 to support larger span building wall systems.

[0026] The sandwich panel 202 spans between two adjacent frame columns 201, making each sandwich panel 202 an independent prefabricated unit wall panel. The gravity and wind load on the wall surface borne by the sandwich panel 202 are directly transferred to the frame column 201, making the force transmission path the simplest and most efficient.

[0027] In this embodiment, the sum of the thickness of the flange plate 2011 and the thickness of the sandwich plate 202 is less than the length of the connecting nail 203. Specifically, the connecting nail here is a high-strength structural nail, and the high-strength structural long nail (203) is made of 10B21 boron alloy cold heading steel, matched with a No. 7 lightning drill bit. In this embodiment, the thickness of the decorative plate 204 is ≥0.53mm.

[0028] In this embodiment, the decorative panel 204 includes a cross panel 2041 that spans the joint. Both ends of the cross panel 2041 are connected to inclined plates 2043. The end of the inclined plate 2043 away from the cross panel 2041 is connected to an extension plate 2042. A second connection hole is provided on the extension plate 2042.

[0029] In this embodiment, a gap is formed between the transverse side, the extended side, and the outer wall of the sandwich panel 202, and the gap is filled with sealant.

[0030] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0031] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A keelless connection construction of a wall sandwich panel, characterized in that It includes multiple vertical frame columns arranged sequentially along a first direction, with multiple sandwich panels installed between adjacent frame columns. The sandwich panels are spliced ​​sequentially between two frame columns from bottom to top, and the two ends of the sandwich panels overlap with the adjacent frame columns respectively. Both ends of the sandwich panel are fixed to adjacent frame columns via a vertical row of first connecting holes and connecting nails within the first connecting holes; adjacent rows of sandwich panels form a joint at the frame column position, and the joint is filled with sealant; a vertically extending decorative panel is provided at the joint, the decorative panel spanning the joint along a first direction, and a row of second connecting holes is provided at both ends of the decorative panel along the first direction, with screws installed in the second connecting holes; both ends of the decorative panel along the first direction are fixed to the frame columns by screws; along the first direction, the distance between the connecting nail and the center of the sandwich panel is greater than the distance between the screw and the center of the sandwich panel; the size of the connecting nail is greater than the size of the screw.

2. The dry keel connection construction of a wall sandwich panel according to claim 1, characterized in that, The cross-section of the frame column is I-shaped, and the frame column includes two flanges arranged side by side, with a support plate vertically fixed between the two flanges; the flanges are used to fix the sandwich panel; or, the frame column is a rectangular tube.

3. The drywall sandwich panel of claim 2, wherein, The sum of the thickness of the flange plate and the thickness of the sandwich plate is less than the length of the connecting stud.

4. The drywall construction of claim 1, wherein, The thickness of the decorative panel is ≥0.53mm.

5. The keel-free connection structure of the wall sandwich panel according to claim 1, characterized in that, The decorative panel includes a cross panel that spans the joint, with inclined plates connected to both ends of the cross panel, and an extension plate connected to the end of the inclined plate away from the cross panel, wherein the extension plate is provided with the second connecting hole.

6. The drywall construction of claim 1, wherein, A gap is formed between the transverse side, the extended side, and the outer wall of the sandwich panel, and the gap is filled with sealant.

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