Laminated slab with top supporting structure

Abstract

The utility model belongs to the technical field of modular buildings, and particularly relates to a laminated slab with a top supporting structure. A precast concrete slab in the laminated slab comprises a slab body part and a plurality of reinforcing parts, and the reinforcing parts are arranged on the upper wall of the slab body part in parallel; a supporting piece in the supporting assembly is fixed above the reinforcing part through a plurality of connecting assemblies and a plurality of positioning assemblies, and the positioning assemblies are arranged on the connecting assemblies to position the supporting piece. Therefore, according to the laminated slab, the supporting structure is arranged above the prefabricated concrete slab, and the purposes that the rigidity of the prefabricated concrete slab in the concrete pouring process can be improved without arranging a vertical support below the prefabricated concrete slab, site construction steps are simplified, top plate decoration in a modular building is protected, and decoration pollution is avoided are achieved; and labor and materials are saved. The supporting assembly is convenient to disassemble and connect, can adapt to the structures of most laminated slabs, can be repeatedly used, has a small requirement for the rigidity of the laminated slabs, and facilitates production and manufacturing of the laminated slabs.

Description

TECHNICAL FIELD

[0001] The utility model belongs to modularization building technical field especially relates to a laminated slab with top support structure. BACKGROUND

[0002] Laminated slab is widely used in the field of construction, is a kind of prefabricated and cast-in-situ concrete combined building template, can improve construction efficiency, reduce material waste, reduce construction cost.Prefabricated concrete slab as the template of post-cast concrete needs to have higher bearing capacity and good structural performance, usually, prefabricated concrete slab bottom needs to be laid out with a large number of vertical supports to meet strength and rigidity.

[0003] However, a large number of vertical supports are laid out at the bottom of prefabricated concrete slab, and the process is complex, and a large amount of manpower and material resources are consumed, especially in modular construction, the bottom of the plate is integrated with interior decoration, and the vertical support will pollute the module decoration.With the development of assembly technology, consider adding prestressed reinforcement in prefabricated concrete slab to improve the rigidity of the plate, so as to achieve the purpose of support-free, but the prestressed tensioning process greatly improves the manufacturing difficulty of laminated slab. SUMMARY

[0004] (I) technical problem to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a laminated slab with top support structure, so as to solve the technical problem that the method of laying out a large number of vertical supports at the bottom of prefabricated concrete slab to improve the strength and rigidity of prefabricated concrete slab is complex, consumes a large amount of manpower and material resources, and pollutes the module decoration.

[0006] (II) technical scheme

[0007] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model includes:

[0008] The utility model embodiment provides a laminated slab with top support structure, which comprises a prefabricated concrete slab and a plurality of support assemblies, the prefabricated concrete slab comprises a plate body and a plurality of reinforcing parts, the plurality of reinforcing parts are arranged in parallel on the upper wall of the plate body, and the support assemblies are fixed to the reinforcing parts;The support assembly comprises a support piece, a plurality of connecting assemblies and a plurality of positioning assemblies, the connecting assembly is fixed to the reinforcing part, the support piece is fixed above the reinforcing part through the plurality of connecting assemblies and the plurality of positioning assemblies, and the positioning assembly is arranged on the connecting assembly to position the support piece.

[0009] Further, the connecting assembly comprises a connecting nut and a connecting bolt, the locating assembly comprises a first locating piece and a second locating piece, the connecting nut is fixed to the reinforcing part, the connecting bolt is matched with the connecting nut, and the first locating piece and the second locating piece are matched with the connecting bolt to clamp the support between the first locating piece and the second locating piece, so that the support is positioned on the connecting bolt.

[0010] Further, the reinforcing part is a rib, the rib is integrally formed with the plate body part, the rib is internally provided with a steel bar, the connecting nut is fixedly embedded in the rib together with the steel bar, and the upper surface of the connecting nut is flush with the upper surface of the rib.

[0011] Further, a plurality of connecting nuts are dispersedly arranged in a left-right staggered manner along the length direction of the rib.

[0012] Further, the support is two C-shaped steels arranged oppositely, the C-shaped steel comprises two horizontally arranged horizontal walls and a vertical wall connecting the two horizontal walls, the vertical walls of the two C-shaped steels are fixed to make the horizontal walls of the two C-shaped steels form a first top wall and a first bottom wall, the first locating piece is arranged below the first bottom wall, and the second locating piece is arranged above the first top wall.

[0013] Further, the support is an I-shaped steel, the I-shaped steel comprises a second top wall and a second bottom wall arranged in parallel, the connecting bolt is arranged to pass through the second top wall and the second bottom wall at the same time, the first locating piece is arranged below the second bottom wall, and the second locating piece is arranged above the second top wall.

[0014] Further, the reinforcing part is a truss rib, the lower end of the truss rib is embedded in the plate body part, and the connecting nut is fixed to the upper end of the truss rib.

[0015] Further, a plurality of connecting nuts are fixed to the intersection points of the top chord steel bars and the web steel bars of the truss rib.

[0016] Further, the support is a square steel pipe, the square steel pipe comprises a third top wall and a third bottom wall arranged in parallel, the connecting bolt is arranged to pass through the third top wall and the third bottom wall at the same time, the first locating piece is arranged below the third bottom wall, and the second locating piece is arranged above the third top wall.

[0017] Further, the width of the support is greater than or equal to 80 mm, and the height of the support is greater than or equal to 100 mm.

[0018] (Three) beneficial effects

[0019] The beneficial effects of the utility model are as follows:

[0020] The utility model discloses a kind of composite boards with top support structure, due to being provided with support assembly on the reinforcing portion of prefabricated concrete slab, support piece is fixed above reinforcing portion by multiple connecting assemblies and multiple positioning assemblies.Relative to prior art, the utility model is arranged support structure above prefabricated concrete slab, it is without arranging vertical support below prefabricated concrete slab to be able to promote the rigidity of prefabricated concrete slab in concrete pouring process, prevent prefabricated concrete slab cracking deformation.It simplifies field construction procedure, and protects modularization building internal roof decoration, avoid the purpose of causing decoration pollution, save labor and material.

[0021] This support assembly is convenient to disassemble and connect, can adapt to the structure of most composite boards, can be reused, and the rigidity demand of composite board itself is less, facilitate the production and manufacture of composite board. DRAWINGS

[0022] Figure 1 It is the structure schematic view of the composite board of example three;

[0023] Figure 2 It is the sectional partial structure schematic view of the composite board of example one;

[0024] Figure 3 It is the sectional partial structure schematic view of the composite board of example two;

[0025] Figure 4 It is the sectional partial structure schematic view of the composite board of example three;

[0026] Figure 5 It is the structure schematic view of the composite board of example four;

[0027] Figure 6 It is the sectional partial structure schematic view of the composite board of example four.

[0028]

Explanation of drawings

[0029] 1: prefabricated concrete slab;11: slab body portion;12: rib;121: reinforcing bar;13: truss bar;

[0030] 2: support assembly;21: connecting assembly;211: connecting nut;212: connecting bolt;22: positioning assembly;221: first positioning piece;222: second positioning piece;231: first top wall;232: first bottom wall;24: I-steel;241: second top wall;242: second bottom wall;25: square steel tube;251: third top wall;252: third bottom wall. DETAILED DESCRIPTION

[0031] In order to better explain the utility model, so as to facilitate understanding, the utility model is described in detail in the specific embodiment, combined with drawings.

[0032] Embodiment One

[0033] As Figures 1-6 shown, the utility model provides a kind of with top support configuration's composite board, including prefabricated concrete slab 1 and multiple support assemblies 2, prefabricated concrete slab 1 includes slab body part 11 and multiple reinforcing parts, multiple reinforcing parts are arranged in parallel on the upper wall of slab body part 11, and support assembly 2 is fixed to reinforcing part.

[0034] Support assembly 2 includes support piece, multiple connecting assemblies 21 and multiple positioning assemblies 22, connecting assembly 21 is fixed to reinforcing part, and support piece is fixed above reinforcing part by multiple connecting assemblies 21 and multiple positioning assemblies 22, and positioning assembly 22 is arranged on connecting assembly 21 and positions support piece.

[0035] Wherein, the size of support piece can be adjusted according to the span (length direction of reinforcing part) of prefabricated concrete slab 1, but in order to guarantee that prefabricated concrete slab 1 does not deform and crack, the width range of support piece is set to ≥80mm, and the height range of support piece is set to ≥100mm.

[0036] Specifically, connecting assembly 21 includes connecting nut 211 and connecting bolt 212, positioning assembly 22 includes first positioning piece 221 and second positioning piece 222, connecting nut 211 is fixed to reinforcing part, connecting bolt 212 cooperates with connecting nut 211, and first positioning piece 221 and second positioning piece 222 cooperate with connecting bolt 212 to clamp support piece between first positioning piece 221 and second positioning piece 222 so that it is positioned to connecting bolt 212.

[0037] Wherein, the diameter of connecting bolt 212 is not suitable less than 20mm, to guarantee the strength of fixed support piece.

[0038] It should be noted that when installing positioning assembly 22, enough space for cast-in-place concrete is left, so that the support piece is convenient to remove subsequently, and is reused later.

[0039] In the embodiment, as Figures 1-4 shown, reinforcing part is rib 12, rib 12 is integrally formed with slab body part 11, rib 12 is internally provided with reinforcing bar 121, connecting nut 211 is fixedly embedded in the inside of rib 12, and the upper surface of connecting nut 211 is flush with the upper surface of rib 12.

[0040] Connecting nut 211 can be flexibly arranged according to different reinforcing parts, in the embodiment, as Figure 1 shown, multiple connecting nuts 211 are dispersedly arranged in the length direction of rib 12 in the form of left and right stagger.

[0041] As Figure 2As shown, the support member is two C-shaped steels arranged oppositely, the C-shaped steel comprises two horizontally arranged horizontal walls and a vertical wall connecting the two horizontal walls, the vertical walls of the two C-shaped steels are fixed to form the first top wall 231 and the first bottom wall 232 of the horizontal walls of the two C-shaped steels, the first positioning member 221 is arranged below the first bottom wall 232, and the second positioning member 222 is arranged above the first top wall 231.

[0042] Embodiment two

[0043] As Figures 1-6 shown, the utility model provides a kind of with top support structure's composite board, including prefabricated concrete slab 1 and multiple support assemblies 2, prefabricated concrete slab 1 includes plate body part 11 and multiple reinforcing parts, multiple reinforcing parts are arranged on the upper wall of plate body part 11, and support assembly 2 is fixed to reinforcing part.

[0044] Support assembly 2 includes support member, multiple connecting assemblies 21 and multiple positioning assemblies 22, connecting assembly 21 is fixed to reinforcing part, support member is fixed above reinforcing part by multiple connecting assemblies 21 and multiple positioning assemblies 22, and positioning assembly 22 is positioned support member by being arranged on connecting assembly 21.

[0045] Wherein, the size of support member can be adjusted according to the span (length direction of reinforcing part) of prefabricated concrete slab 1, but in order to guarantee that prefabricated concrete slab 1 does not deform and crack, the width range of support member is set to ≥80mm, and the height range of support member is set to ≥100mm.

[0046] Specifically, connecting assembly 21 includes connecting nut 211 and connecting bolt 212, positioning assembly 22 includes first positioning member 221 and second positioning member 222, connecting nut 211 is fixed to reinforcing part, connecting bolt 212 cooperates with connecting nut 211, and first positioning member 221 and second positioning member 222 cooperate with connecting bolt 212 to clamp support member between first positioning member 221 and second positioning member 222 so that it is positioned to connecting bolt 212.

[0047] Wherein, the diameter of connecting bolt 212 is not less than 20mm, to ensure the strength of fixed support member.

[0048] It should be noted that when installing positioning assembly 22, sufficient space for cast-in-place concrete should be left to facilitate the subsequent removal of support member for subsequent reuse.

[0049] In the embodiment, as Figures 1-4 shown, reinforcing part is rib 12, rib 12 is integrally formed with plate body part 11, rib 12 is internally provided with reinforcing bar 121, connecting nut 211 is fixedly embedded in the inside of rib 12, and the upper surface of connecting nut 211 is flush with the upper surface of rib 12.

[0050] The connecting nut 211 can be flexibly arranged according to different reinforcement parts. In this embodiment, for example... Figure 1 As shown, multiple connecting nuts 211 are distributed in a staggered manner along the length of the rib 12.

[0051] like Figure 3 As shown, the support member is an I-beam 24, which includes a second top wall 241 and a second bottom wall 242 arranged in parallel. The connecting bolts 212 pass through the second top wall 241 and the second bottom wall 242. The first positioning member 221 is located below the second bottom wall 242, and the second positioning member 222 is located above the second top wall 241.

[0052] Example 3

[0053] like Figures 1-6 As shown, this utility model provides a composite slab with a top support structure, including a precast concrete slab 1 and multiple support components 2. The precast concrete slab 1 includes a slab body 11 and multiple reinforcing parts. The multiple reinforcing parts are arranged in parallel on the upper wall of the slab body 11, and the support components 2 are fixed to the reinforcing parts.

[0054] The support component 2 includes a support member, multiple connecting components 21 and multiple positioning components 22. The connecting components 21 are fixed to the reinforcement part, the support member is fixed above the reinforcement part by the multiple connecting components 21 and the multiple positioning components 22, and the positioning components 22 are disposed on the connecting components 21 to position the support member.

[0055] The dimensions of the support can be adjusted according to the span of the precast concrete slab 1 (the length direction of the reinforcement). However, in order to ensure that the precast concrete slab 1 does not deform or crack, the width range of the support is set to ≥80mm and the height range of the support is set to ≥100mm.

[0056] Specifically, the connecting assembly 21 includes a connecting nut 211 and a connecting bolt 212, and the positioning assembly 22 includes a first positioning member 221 and a second positioning member 222. The connecting nut 211 is fixed to the reinforcing part, and the connecting bolt 212 cooperates with the connecting nut 211. The first positioning member 221 and the second positioning member 222 cooperate with the connecting bolt 212 to clamp the support member between the first positioning member 221 and the second positioning member 222 so that it is positioned on the connecting bolt 212.

[0057] The diameter of the connecting bolt 212 should not be less than 20mm to ensure the strength of the fixed support.

[0058] It is important to note that sufficient space should be left for the cast-in-place concrete when installing the positioning component 22, so that the support can be easily removed and reused later.

[0059] In this embodiment, as Figures 1-4As shown, the reinforcing part is a rib 12, the rib 12 is integrally formed with the plate body part 11, a steel bar 121 is arranged inside the rib 12, the connecting nut 211 is fixedly embedded in the inside of the rib 12, and the upper surface of the connecting nut 211 is flush with the upper surface of the rib 12.

[0060] The connecting nut 211 can be flexibly arranged according to different reinforcing parts, and in the embodiment, as shown in the figure, Figure 1 As shown, a plurality of connecting nuts 211 are arranged in a left-right staggered manner along the length direction of the rib 12.

[0061] As shown in the figure, Figure 1 , Figure 4 As shown, the support is a square steel pipe 25, the square steel pipe 25 includes a third top wall 251 and a third bottom wall 252 arranged in parallel, the connecting bolt 212 is arranged through the third top wall 251 and the third bottom wall 252, the first positioning member 221 is arranged below the third bottom wall 252, and the second positioning member 222 is arranged above the third top wall 251.

[0062] Construction process of embodiments one, two and three:

[0063] (1) When producing the prefabricated concrete slab 1, the connecting nut 211 and the steel bar 121 are fixedly embedded in the inside of the rib 12, and the upper surface of the connecting nut 211 is flush with the upper surface of the rib 12

[0064] (2) After installing the prefabricated concrete slab 1 on site, the connecting bolt 212 is connected with the connecting nut 211, and the first positioning member 221 is installed at a certain height.

[0065] (3) The support is placed on the first positioning member 221 through the connecting bolt 212, and the second positioning member 222 is installed.

[0066] (4) Cast the cast-in-place concrete.

[0067] (5) After the cast-in-place concrete reaches a certain strength, the support is disassembled and the connecting bolt 212 is cut to realize the recycling of the connecting bolt 212 and the positioning assembly 22 above the cast-in-place concrete.

[0068] (6) Lay the mortar at the cutting position of the connecting bolt 212, and cover the leaked metal surface.

[0069] Embodiment four

[0070] As shown in the figure, Figures 1-6 The utility model provides a kind of laminated slab with top support structure, including prefabricated concrete slab 1 and multiple support assemblies 2, prefabricated concrete slab 1 includes plate body part 11 and multiple reinforcing parts, multiple reinforcing parts are arranged on the upper wall of plate body part 11 in parallel, and support assembly 2 is fixed to reinforcing part.

[0071] The support assembly 2 comprises a support, a plurality of connecting assemblies 21 and a plurality of positioning assemblies 22, the connecting assemblies 21 are fixed to the reinforcing part, the support is fixed above the reinforcing part through the plurality of connecting assemblies 21 and the plurality of positioning assemblies 22, and the positioning assemblies 22 are arranged on the connecting assemblies 21 to position the support.

[0072] The size of the support can be adjusted according to the span (length direction of the reinforcing part) of the prefabricated concrete slab 1, but in order to ensure that the prefabricated concrete slab 1 does not deform and crack, the width of the support is set to be ≥80mm, and the height of the support is set to be ≥100mm.

[0073] Specifically, the connecting assembly 21 comprises a connecting nut 211 and a connecting bolt 212, and the positioning assembly 22 comprises a first positioning member 221 and a second positioning member 222, the connecting nut 211 is fixed to the reinforcing part, the connecting bolt 212 cooperates with the connecting nut 211, and the first positioning member 221 and the second positioning member 222 cooperate with the connecting bolt 212 to clamp the support between the first positioning member 221 and the second positioning member 222 so that the support is positioned on the connecting bolt 212.

[0074] The diameter of the connecting bolt 212 is not less than 20mm to ensure the strength of the fixed support.

[0075] It should be noted that when installing the positioning assembly 22, sufficient space should be left for the cast-in-place concrete to facilitate the subsequent removal of the support for subsequent reuse.

[0076] In the embodiment, as shown in Figure 5 , Figure 6 The reinforcing part is a truss rib 13, the lower end of the truss rib 13 is embedded in the slab part 11, and the connecting nut 211 is fixed to the upper end of the truss rib 13.

[0077] The connecting nut 211 can be flexibly arranged according to different reinforcing parts, and in the embodiment, as shown in Figure 5 , a plurality of connecting nuts 211 are fixed to the intersection of the top chord reinforcement and the web steel bar of the truss rib 13.

[0078] The support is a square steel pipe 25, which comprises a third top wall 251 and a third bottom wall 252 arranged in parallel, the connecting bolt 212 is arranged through the third top wall 251 and the third bottom wall 252, the first positioning member 221 is arranged below the third bottom wall 252, and the second positioning member 222 is arranged above the third top wall 251.

[0079] Construction process of the fourth embodiment:

[0080] (1) When producing the prefabricated concrete slab 1, the connecting nut 211 is welded to the truss rib 13.

[0081] (2) After the precast concrete slab 1 is installed on site, the connecting bolt 212 is connected with the connecting nut 211, and the first positioning member 221 is installed at a certain height.

[0082] (3) The support member is placed on the first positioning member 221 through the connecting bolt 212, and the second positioning member 222 is installed.

[0083] (4) The cast-in-place concrete is poured.

[0084] (5) After the cast-in-place concrete reaches a certain strength, the support member is disassembled and the connecting bolt 212 is cut to realize the recycling of the connecting bolt 212 and the positioning assembly 22 above the cast-in-place concrete.

[0085] (6) The mortar is laid at the cutting position of the connecting bolt 212, and the leaked metal surface is covered.

[0086] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0087] In the present application, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0088] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be directly contacted by the first and second features, or indirectly contacted by the first and second features through an intermediate medium. Moreover, the first feature is "above", "above" and "above" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0089] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0090] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can modify, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A composite slab with a top support configuration, characterized by, The precast concrete slab (1) comprises a slab body (11) and a plurality of reinforcing parts arranged on the upper wall of the slab body (11), and the support assembly (2) is fixed to the reinforcing parts. The support assembly (2) comprises a support, a plurality of connecting assemblies (21) and a plurality of positioning assemblies (22), the connecting assemblies (21) are fixed to the reinforcing parts, the support is fixed above the reinforcing parts through the connecting assemblies (21) and the positioning assemblies (22), and the positioning assemblies (22) are arranged on the connecting assemblies (21) to position the support.

2. The superposed slab with top support configuration according to claim 1, characterized in that, The connecting assembly (21) comprises a connecting nut (211) and a connecting bolt (212), the positioning assembly (22) comprises a first positioning part (221) and a second positioning part (222), the connecting nut (211) is fixed to the reinforcing part, the connecting bolt (212) is matched with the connecting nut (211), and the first positioning part (221) and the second positioning part (222) are matched with the connecting bolt (212) to clamp the support between the first positioning part (221) and the second positioning part (222) so that the support is positioned on the connecting bolt (212).

3. The superposed slab with top support configuration according to claim 2, characterized in that, The reinforcing part is a rib (12), the rib (12) is integrally formed with the slab body (11), the rib (12) is internally provided with a steel bar (121), the connecting nut (211) is fixedly embedded in the rib (12) together with the steel bar (121), and the upper surface of the connecting nut (211) is flush with the upper surface of the rib (12).

4. The composite slab with top support configuration according to claim 3, wherein, A plurality of the connecting nuts (211) are dispersedly arranged in a left-right staggered manner along the length direction of the rib (12).

5. The composite slab with top support configuration according to claim 4, wherein, The support is two C-shaped steels arranged oppositely, the C-shaped steel comprises two horizontally arranged horizontal walls and a vertical wall connecting the two horizontal walls, the vertical walls of the two C-shaped steels are fixed to make the horizontal walls of the two C-shaped steels form a first top wall (231) and a first bottom wall (232), the first positioning part (221) is arranged below the first bottom wall (232), and the second positioning part (222) is arranged above the first top wall (231).

6. The composite slab with top support configuration according to claim 4, wherein, The support is an I-shaped steel (24), the I-shaped steel (24) comprises a second top wall (241) and a second bottom wall (242) arranged in parallel, the connecting bolt (212) penetrates the second top wall (241) and the second bottom wall (242) at the same time, the first positioning part (221) is arranged below the second bottom wall (242), and the second positioning part (222) is arranged above the second top wall (241).

7. The top supported construction of the sandwich panel according to claim 2, characterized in that, The reinforcing part is a truss rib (13), the lower end of the truss rib (13) is embedded in the slab body (11), and the connecting nut (211) is fixed to the upper end of the truss rib (13).

8. The top supported construction with a composite slab according to claim 7, characterized in that, A plurality of the connecting nuts (211) are fixed at the intersection of the top chord steel bars and the web steel bars of the truss rib (13).

9. The sandwich panel with top supporting construction according to any of claims 4 or 8, characterized in that, The support is a square steel tube (25), the square steel tube (25) comprises a third top wall (251) and a third bottom wall (252) arranged in parallel, the connecting bolt (212) is arranged to pass through the third top wall (251) and the third bottom wall (252) simultaneously, the first positioning piece (221) is arranged below the third bottom wall (252), and the second positioning piece (222) is arranged above the third top wall (251).

10. The top supported construction of the sandwich panel according to claim 1, characterized in that, The width of the support is greater than or equal to 80 mm, and the height of the support is greater than or equal to 100 mm.

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