CN110206210A - Assembled composite floor plate and its construction method - Google Patents

Abstract

The invention provides an assembled composite floor slab and a construction method thereof, which relate to the technical field of building construction and include a frame, a profiled steel plate, a second concrete layer, a light insulation layer, a first concrete layer and several trusses; the frame is rectangular frame, and a supporting plate is provided at the lower end; several trusses are arranged parallel to each other inside the light insulation layer and the first concrete layer. The prefabricated composite floor slab provided by the present invention adopts several trusses arranged in parallel in the frame as the skeleton of the floor slab, combined with the setting of the second concrete layer, profiled steel plate and the first concrete layer to effectively ensure the load-bearing strength, suitable for Used as a load-bearing floor, the lightweight insulation layer is set between the first concrete layer and the profiled steel plate, which ensures good insulation performance, achieves a good energy-saving effect, and effectively reduces the overall weight of the floor. The use can realize the rapid installation of the floor slab during the construction process, which is convenient for improving the construction efficiency.

Description

Prefabricated composite floor slab and its construction method

technical field

The invention belongs to the technical field of building construction, and more specifically relates to an assembled composite floor slab and a construction method thereof.

Background technique

After several years of development, the proportion of prefabricated structures in construction is increasing day by day, which greatly improves the construction efficiency, but there are still many problems, especially for prefabricated floors, which often have large self-weight and assembly Problems such as low efficiency and inconvenient transportation, on the one hand, are not conducive to improving the construction progress, and at the same time, it will consume a lot of manpower and material resources, which is not conducive to the realization of energy saving and environmental protection.

Contents of the invention

The purpose of the present invention is to provide a prefabricated composite floor and its construction method to solve the technical problems of low construction efficiency and large energy consumption caused by the excessive weight of the existing prefabricated floor in the prior art.

In order to achieve the above object, the technical solution adopted by the present invention is to provide a prefabricated composite floor, including a frame, a profiled steel plate, a second concrete layer, a light insulation layer, a first concrete layer and several trusses; the frame is a slab A hollow rectangular frame whose surface is set along the up-down direction and penetrates up and down. The lower end of the frame is provided with a support plate whose plate surface is perpendicular to the up-down direction and extends inward; the profiled steel plate is set above the support plate and used to block the lower opening of the frame; The second concrete layer is arranged under the profiled steel plate and the supporting plate; the light insulation layer is arranged above the profiled steel plate and is located in the frame; the first concrete layer is arranged above the light insulation layer and protrudes upward from the frame ; Several trusses are arranged parallel to the side plate of the frame between the light insulation layer and the first concrete layer.

As a further optimization, the truss includes at least three longitudinal reinforcements arranged parallel to one side plate of the frame and several polygonal stirrups whose vertices are respectively connected to several longitudinal reinforcements, and the main axis of the longitudinal reinforcements is perpendicular to the plane where the polygonal stirrups are located.

As a further optimization, the polygonal stirrup is an equilateral triangle frame, and one vertex of the polygonal stirrup is set downward.

As a further optimization, the truss also includes a hook arranged at the lower end of the polygonal stirrup and penetrating through the profiled steel plate and extending into the second concrete layer.

As a further optimization, several studs extending downward and located in the second concrete layer are also provided on the bottom surface of the profiled steel plate.

As a further optimization, the prefabricated composite floor also includes a first connecting sleeve arranged outside one side panel of the frame and used to connect with the first connecting column on the top of the wall, and a first connecting sleeve arranged outside the other side panel of the frame and used to In the second connecting sleeve connected to the second connecting column on the top of another wall, the second connecting sleeve and the first connecting sleeve are respectively located on both sides of the frame, and the bottom surface of the second connecting sleeve is connected to the first connecting sleeve. The top surface of the sleeve is flush.

As a further optimization, the profiled steel plate is a trapezoidal profiled steel plate.

As a further optimization, the construction method of the prefabricated composite floor includes the following steps:

Making trusses and frames, making trusses and frames, and connecting trusses and frames;

For the pouring of the first concrete layer, place the whole frame and truss upside down on the pouring formwork, and pour the first concrete layer until part of the truss is covered;

For the installation of the profiled steel plate, a number of holes are opened on the profiled steel plate, and the several openings correspond to the vertices of the side of the polygonal stirrup close to the profiled steel plate, and the end of the hook is connected to the polygonal stirrup and the pressure plate. The profiled steel plate and the truss are welded together, and the supporting plate is connected with the profiled steel plate;

For the production of lightweight insulation layer, foam material is filled between the profiled steel plate and the first concrete layer to form a lightweight insulation layer;

For the pouring of the second concrete layer, the frame, truss and profiled steel plate are placed on the pouring formwork, and the second concrete layer is poured.

As a further optimization, the pouring of the second concrete layer also includes welding studs on the surface of several main axis vertical profiled steel plates on the bottom surface of the profiled steel plate.

As a further optimization, the manufacture of the truss and the frame includes the following steps: making the truss, installing two side plates at both ends of the truss, and installing two other side plates at both ends of the two side plates to form a frame.

The beneficial effects of the assembled composite floor provided by the present invention are: the assembled composite floor provided by the present invention adopts several trusses arranged in parallel in the frame as the skeleton of the floor, and combines the second concrete layer, profiled steel plate and the first The setting of the first concrete layer effectively guarantees the load-bearing strength and is suitable for use as a load-bearing floor. The light insulation layer is set between the first concrete layer and the profiled steel plate to ensure good thermal insulation performance and achieve good energy-saving effects. The overall weight of the floor slab is effectively reduced, and the use of the composite floor slab can realize rapid installation of the floor slab during construction, which is convenient for improving construction efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a partial cross-sectional structural schematic diagram of a prefabricated composite floor slab provided by an embodiment of the present invention;

Fig. 2 is the schematic diagram of partial enlarged structure of I in Fig. 1;

Fig. 3 is the schematic diagram of the front view sectional structure of Fig. 1;

Fig. 4 is a left view sectional structural schematic diagram of Fig. 1;

Fig. 5 is a structural schematic diagram of the connection between the assembled composite floor slab and the wall of Fig. 1;

Fig. 6 is a schematic top view of Embodiment 1 of the connecting structure of two assembled composite floors provided in Fig. 1;

Fig. 7 is a front structural schematic diagram of the connection structure of Fig. 6;

Fig. 8 is a front structural schematic diagram of Embodiment 2 of the connection structure of two prefabricated composite floors provided in Fig. 1 .

In the figure: 100, frame; 110, supporting plate; 120, stud; 130, first connecting sleeve; 140, second connecting sleeve; 200, second concrete layer; 300, profiled steel plate; 400, lightweight Insulation layer; 500, first concrete layer; 600, truss; 610, longitudinal reinforcement; 620, polygonal stirrup; 630, hook; 710, first connecting column; 720, tongue-shaped steel plate; 730, cold-formed thin-walled steel .

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Please refer to Fig. 1 to Fig. 8 together, and now the prefabricated composite floor slab provided by the present invention will be described. Prefabricated composite floor, including frame 100, profiled steel plate 300, second concrete layer 200, lightweight insulation layer 400, first concrete layer 500 and several trusses 600; A hollow rectangular frame, the lower end of the frame 100 is provided with a supporting plate 110 whose surface is perpendicular to the up-down direction and extends inwardly; a profiled steel plate 300 is arranged above the supporting plate 110 and is used to block the lower opening of the frame 100; the second concrete layer 200 is arranged under the profiled steel plate 300 and the supporting plate 110; the light insulation layer 400 is arranged above the profiled steel plate 300 and is located in the frame 100; the first concrete layer 500 is arranged above the light insulation layer 400 and protrudes upwards The top surface of the frame 100 ; several trusses 600 are arranged between the light insulation layer 400 and the first concrete layer 500 parallel to the side plate of the frame 100 . It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or indirectly on the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplified descriptions, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "several" means two or more, unless otherwise specifically defined. The up and down direction in this embodiment corresponds to the state of the composite floor during use, the side close to the first concrete layer 500 is up, and the side close to the second concrete layer 200 is down.

In this embodiment, the light insulation layer 400 is arranged between the second concrete layer 200 and the first concrete layer 500, which can not only ensure the strength of the top and bottom surfaces of the composite floor, but also achieve a good weight reduction effect , improves the thermal insulation performance of the composite floor, has a good effect of energy saving and environmental protection, and the truss 600 installed inside improves the overall strength of the composite floor and plays a good skeleton role. The setting of the profiled steel plate 300 forms a good rigid connection with the frame 100 on the one hand, improves the strength of the frame 100, and at the same time increases the strength of the floor slab through its own shape, ensuring the good performance of the composite floor slab. The frame 100 and the supporting plate 110 can be obtained by using standard parts such as angle steel or channel steel, or can be obtained by welding and connecting perpendicular steel plates. In this embodiment, angle steel components are used.

Compared with the prior art, the prefabricated composite floor slab provided by the present invention adopts several trusses 600 arranged in parallel in the frame 100 as the skeleton of the slab, combined with the second concrete layer 200 , the profiled steel plate 300 and the first concrete layer 500 effectively ensure the load-bearing strength, and are suitable for use as a load-bearing floor. Good thermal insulation performance achieves a good energy-saving effect and effectively reduces the overall weight of the floor. The use of the composite floor can realize the rapid installation of the floor during the construction process and facilitate the improvement of construction efficiency.

Please refer to Fig. 1 to Fig. 4 together, as a specific embodiment of the prefabricated composite floor slab provided by the present invention, the truss 600 includes at least three longitudinal steel bars 610 arranged parallel to one side plate of the frame 100 and the vertices are connected with several A plurality of polygonal stirrups 620 connected to each other by a longitudinal steel bar 610, the main axis of the longitudinal steel bar 610 is perpendicular to the plane where the polygonal stirrup 620 is located. The truss 600 adopts the combination of longitudinal steel bars 610 and polygonal stirrups 620 , each vertex of the polygonal stirrups 620 is connected to a longitudinal steel bar 610 respectively, and the plane where the polygonal stirrups 620 is located is perpendicular to the main axis of the longitudinal steel bars 610 . In the process of connecting the polygonal stirrup 620 and the longitudinal reinforcement 610, the polygonal stirrup 620 is first wound around the outer circumference of the longitudinal reinforcement 610, and then the position where the polygonal stirrup 620 contacts the longitudinal reinforcement 610 is welded or bound to complete Fabrication of Truss 600. In actual use, the composite floor is a bending member, the first concrete layer 500 is under compression, the profiled steel plate 300 is under tension, and the truss 600 is used as a connector to make the two work together to ensure the structural strength of the composite floor. Several polygonal stirrups 620 are arranged in the length direction of the longitudinal steel bars 610 to enhance the strength of the longitudinal steel bars 610 in the length direction.

Please refer to FIG. 1 to FIG. 4 together. As a specific embodiment of the prefabricated composite floor provided by the present invention, the polygonal stirrup 620 is an equilateral triangle frame, and one apex of the polygonal stirrup 620 is set downward. The polygonal stirrups 620 in this embodiment are in the form of a triangular frame, the triangle has good stability and can ensure the stability of the truss 600, and the triangle is in the form of an equilateral triangle, one side of which is in contact with the surface of the second concrete layer 200 Parallel and located above the opposite vertex, it can effectively support the upper load and ensure the supporting strength.

Please refer to Fig. 1 to Fig. 4 together. As a specific embodiment of the prefabricated composite floor slab provided by the present invention, the truss 600 also includes the lower end of the polygonal stirrup 620 and penetrates the profiled steel plate 300 and extends into the second concrete. Hook 630 within layer 200 . The hook 630 provided at the lower end of the truss 600 passes through the profiled steel plate 300, and is connected with the profiled steel plate 300 by plug welding, respectively realizing effective connection with the truss 600 and the profiled steel plate 300, ensuring good integrity and facilitating the improvement of the above-mentioned framework. structural strength of the component. The upper part of the truss 600 is connected with the first concrete layer 500, and the lower end is connected with the profiled steel plate 300 through the hook 630, and the space between the second concrete and the profiled steel plate 300 is used to accommodate the light insulation layer 400, which is The layer 400 is in the form of filled foam material and is used as a functional layer for thermal insulation, heat insulation and sound insulation.

Please refer to Fig. 1 to Fig. 4 together. As a specific embodiment of the prefabricated composite floor slab provided by the present invention, the bottom surface of the profiled steel plate 300 is also provided with several downward extending and located in the second concrete layer 200. Stud 120. On the bottom surface of the profiled steel plate 300, the stud 120 is welded with the main shaft along the up and down direction. The stud 120 is a standard part, which is a member with a columnar rod body. The setting of the end can greatly enhance the mechanical engagement force between the stud 120 and the second concrete layer 200 . The studs 120 are poured in the second concrete layer 200, the second concrete layer 200 serves as both a protective layer and a fireproof layer, and the setting of the first studs 120 can enhance the bond between the profiled steel plate 300 and the second concrete layer 200 Mechanical interlocking force ensures connection strength.

Please refer to Fig. 3 to Fig. 5 together. As a specific embodiment of the prefabricated composite floor slab provided by the present invention, the prefabricated composite floor slab also includes a second side panel arranged on the outside of a side panel of the frame 100 and used to connect with the top of the wall. The first connecting sleeve 130 connected to a connecting column 710 and the second connecting sleeve 140 arranged on the outside of the other side plate of the frame 100 and used to connect with the second connecting column at the top of another wall, the second connecting sleeve The barrel 140 and the first connecting sleeve 130 are respectively on two sides of the frame 100 , and the bottom surface of the second connecting sleeve 140 is flush with the top surface of the first connecting sleeve 130 . The edge of the prefabricated composite floor is a frame 100, and each corner point is connected by welding. The two ends of the truss 600 are respectively connected to the inner wall of the frame 100, and the first connecting sleeve 130 welded on the outside of the frame 100 is used to be set on the wall. On the first connecting column 710 at the top, when a composite floor is provided on both sides of a wall, the first connecting sleeve 130 is set on one of the composite floors, and the other composite floor is adjacent to the composite floor. The second connection sleeve 140 is set on the top, first the first connection sleeve 130 is set on the first connection column 710, and then the second connection sleeve 140 is set on the second connection column on another wall, at this time The second connecting sleeve 140 is located above the first connecting sleeve 130, and then concrete is poured into the gap formed between the two composite floor slabs and the top surfaces of the wall panels, so that the components are firmly connected to form a whole. This arrangement form can effectively avoid positional interference between the first connecting sleeve 130 and the second connecting sleeve 140 while ensuring the connection strength. In addition, the settings of the first connecting sleeve 130 and the second connecting sleeve 140 are set according to the actual situation of the wall below them, and a group can be set correspondingly on both sides of the composite floor, or they can be placed on the other two sides according to actual needs. Set another group on the side for connecting with other wall panels.

As a specific embodiment of the prefabricated composite floor provided by the present invention, the profiled steel plate 300 is a trapezoidal profiled steel plate 300 . The cross-section of the profiled steel plate 300 has various forms, such as a channel-shaped steel plate with a trapezoidal waveform cross-section or an open square box-shaped steel plate, both of which belong to the profiled steel plate 300, and are suitable for making composite floor slabs. In this embodiment, a profiled steel plate 300 with a trapezoidal cross-section is used. The profiled steel plate 300 is a thin steel plate with galvanized treatment, which has good anti-corrosion performance. The profiled steel plate 300 is cold-rolled by a forming machine into a groove with a trapezoidal cross-section Steel plate, the product has the advantages of easy processing, light weight, and fast installation.

As a specific embodiment of the assembled composite floor provided by the present invention, the construction method of the assembled composite floor includes the following steps:

The manufacture of the truss 600 and the frame 100 is to manufacture the truss 600, and install two side panels of the frame 100 at both ends of the truss 600, and install the other two side panels of the frame 100 at both ends of the two side panels, which are the above four side panels. The plate forms the frame 100, and the manufacture of the truss 600 and the frame 100 is completed;

For the pouring of the first concrete layer 500, the whole of the frame 100 and the truss 600 is placed upside down on the pouring formwork, and the first concrete layer 500 is poured until part of the truss 600 is covered;

For the installation of the profiled steel plate 300, several holes are provided on the profiled steel plate 300, and the vertices of the several openings correspond to the vertices of the side of the polygonal stirrup 620 near the profiled steel plate 300, and the ends of the crotch 630 are aligned with the The polygonal stirrup 620, the profiled steel plate 300 and the truss 600 are welded together to connect the supporting plate 110 with the profiled steel plate 300;

In the manufacture of the lightweight insulation layer 400, foaming material is filled between the profiled steel plate 300 and the first concrete layer 500 to form the lightweight insulation layer 400;

For the pouring of the second concrete layer 200, several studs 120 on the surface of the profiled steel plate 300 are welded on the bottom surface of the profiled steel plate 300, and then the frame 100, the truss 600 and the profiled steel plate 300 are placed on the pouring formwork. A second concrete layer 200 is put on and poured.

The composite floor slab provided in this embodiment is a prefabricated modular slab, which is prefabricated in a factory and produced in batches and standardized. First, the welding of the truss 600 is carried out. After the truss 600 is welded, the two ends of the truss 600 are welded with side plates respectively, and then two other side plates are installed on the two ends of the above-mentioned side plates, so that the four side plates form the frame 100, and the frame is completed so far. 100 and truss 600 for fabrication.

In order to pour the first concrete layer 500 at the top and the second concrete layer 200 at the bottom, in the actual operation process, the entirety of the truss 600 and the frame 100 is placed upside down on the pouring formwork, and the concrete is poured until part of the truss is covered. After 600°C, curing and molding, then the profiled steel plate 300 is connected with the supporting plate 110 by screws, the installation of the profiled steel plate 300 is completed, and then a hole is opened on the profiled steel plate 300 at the apex of the corresponding triangular frame and put into the hook 630 to carry out Plug welding realizes the connection between the hook 630 and the truss 600 and the profiled steel plate 300 . Then, foam material is filled between the profiled steel plate 300 and the first concrete layer 500 to realize the shaping of the lightweight insulation layer 400, and finally the above-mentioned components are turned over as a whole to be placed upright, and concrete is poured to the upper profiled steel plate 300. The pouring is stopped after contacting the position, and the second concrete layer 200 is cured.

In order to facilitate the subsequent prefabricated installation, a first connection sleeve 130 is provided on the outside of one side plate of the composite floor. If the connecting columns are connected, a second connecting sleeve 140 is provided on the outside of one side of the composite floor opposite to the first connecting sleeve 130 . If the other side is connected to the composite floor, there is no need to install the second connecting sleeve 140 .

Please refer to Fig. 6 to Fig. 7 together. As a specific embodiment of the fabricated composite floor slab provided by the present invention, when there is no wall between the connection points of two composite floor slabs, tongue-shaped steel plates 720 can be used for connection. Tongue-shaped steel plates 720 arranged along the upper and lower directions are respectively welded on the outside of the frame 100 of the composite floor slabs on both sides, and then the tongue-shaped steel plates 720 are connected by bolts, and finally concrete is poured in the space between the two composite floor slabs to realize composite Effective connections between floors.

Please refer to Fig. 8, as a specific embodiment of the fabricated composite floor slab provided by the present invention, when there is no wall between the connection points of two composite floor slabs, the opening can be welded on the lower part of the outer surface of the frame 100 Upward cold-formed thin-walled steel 730, and welding screws arranged in the up and down direction on the cold-formed thin-walled steel 730, and then pouring concrete until it is flush with the top surface of the composite floor, so as to realize the effective connection between the composite floors.

In the construction method of the fabricated composite floor provided by the present invention, the truss 600 is welded first, and then two side plates are respectively welded at both ends of the truss 600, and then the other two side plates are welded between the ends of the two side plates, Realize the manufacture of the truss 600 and the frame 100, put the above-mentioned welded parts upside down and pour the first concrete layer 500, connect the profiled steel plate 300 and the supporting plate 110, and pour the first concrete layer 500 after the upright placement, and finally The lightweight insulation layer 400 is formed by injecting foaming material. This construction method is simple and fast, and both sides can ensure good weighing strength, and the lightweight insulation layer 400 in the middle can not only keep heat but also reduce weight, and has good performance. The use effect is convenient to improve the subsequent construction efficiency.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Inside.

Claims (10)

1. assembled composite floor plate characterized by comprising

Frame (100) is arranged and hollow, rectangular frame up and down, the lower end of the frame (100) along the vertical direction for plate face The supporting plate (110) extended perpendicular to up and down direction and inwardly equipped with plate face；

Profiled sheet (300) is set to the lower mouth above the supporting plate (110) and for blocking the frame (100)；

Second concrete layer (200) is set to the lower section of the profiled sheet (300) and the supporting plate (110)；

Lightweight thermal insulation layer (400) is set to above the profiled sheet (300) and is located in the frame (100)；

First concrete layer (500) is set to above the lightweight thermal insulation layer (400) and protruding upward in the frame (100) Top surface；

Several truss (600), it is arranged in parallel and be located at the lightweight thermal insulation layer (400) and first concrete layer (500) inside.

2. assembled composite floor plate as described in claim 1, which is characterized in that the truss (600) includes at least three flat Row in the frame (100) side plate be arranged longitudinal reinforcement (610) and vertex respectively with longitudinal reinforcement described in several (610) several connected polygon u stirrups (620), the main shaft of the longitudinal reinforcement (610) is perpendicular to the polygon u stirrup (620) plane where.

3. assembled composite floor plate as claimed in claim 2, which is characterized in that the polygon u stirrup (620) is equilateral three Angular framework, and a vertex of the polygon u stirrup (620) is down-set.

4. assembled composite floor plate as claimed in claim 3, which is characterized in that the truss (600) further includes being set to institute It states the lower end of polygon u stirrup (620) and runs through the profiled sheet (300) and protrude into second concrete layer (200) Crotch (630).

5. assembled composite floor plate as claimed in claim 4, which is characterized in that on the bottom surface of the profiled sheet (300) also The peg (120) for extending downwardly and being located in second concrete layer (200) equipped with several.

6. assembled composite floor plate as described in claim 1, which is characterized in that the assembled composite floor plate further includes setting First on the outside of a side plate of the frame (100) and for being connected with the first connecting column (710) at the top of wall connect It sleeve (130) and is set on the outside of another side plate of the frame (100) and is used for and second at the top of another wall The second connection sleeve (140) that connecting column is connected, second connection sleeve (140) connect sleeve (130) point with described first Not Wei Yu the frame (100) two sides, and it is described second connection sleeve (140) bottom surface connect sleeve with described first (130) top surface flushes.

7. assembled composite floor plate as claimed in any one of claims 1 to 6, which is characterized in that the profiled sheet (300) is Trapezoidal profiled sheet.

8. a kind of construction method of assembled composite floor plate as claimed in claim 5, which comprises the following steps:

The production of the truss (600) and the frame (100) makes the truss (600) and the frame (100), and Connect the truss (600) and the frame (100)；

First concrete layer (500) pour, and the entirety of the frame (100) and the truss (600) is put upside down in pouring On building mould, and the first concrete layer (500) is poured to the no mistake part truss (600)；

The installation of the profiled sheet (300), opens up several holes on the profiled sheet (300), several apertures difference It is corresponded with the polygon u stirrup (620) close to the vertex of the side of the profiled sheet (300), and by the crotch (630) end is welded as a whole with the polygon u stirrup (620), the profiled sheet (300) and the truss (600), The supporting plate (110) is connected with the profiled sheet (300)；

The production of the lightweight thermal insulation layer (400), between the profiled sheet (300) and first concrete layer (500) Filling-foam material forms the lightweight thermal insulation layer (400)；

Second concrete layer (200) pour, by the frame (100), the truss (600) and the profiled sheet (300) it is just being put on the formwork for placing, is pouring second concrete layer (200).

9. a kind of construction method of assembled composite floor plate as claimed in claim 8, which is characterized in that second concrete Pouring for (200) of layer further includes that several main shafts vertically profiled sheet is welded on the bottom surface of the profiled sheet (300) (300) peg (120) of plate face.

10. the construction method of assembled composite floor plate as claimed in claim 8 or 9, which is characterized in that the truss (600) Production with the frame (100) the following steps are included:

It makes the truss (600), and two side plates is installed at the both ends of the truss (600), the two of two side plates Other two side plate is installed at end, forms the frame (100).