Fabricated prefabricated floor slab for green energy-saving building and construction method

Abstract

The invention discloses an assembly type prefabricated floor slab for a green energy-saving building and a construction method, and belongs to the technical field of building floor slabs. The green energy-saving fabricated prefabricated floor slab for the building comprises a baffle, three filling blocks are transversely and evenly distributed in the middle of the baffle, and three embedded pipes are transversely arranged in the filling blocks. The problems that when an existing assembly type prefabricated floor slab is prefabricated and used for construction, no water and electricity pipeline placement position is reserved, and after the assembly type prefabricated floor slab is used for splicing in a whole building, grooves needed by water and electricity need to be additionally dug in the corresponding position of the assembly type prefabricated floor slab are solved. The embedded pipes are welded in the baffles and the bottom plate in advance, and water pipes, electric wires, network cables and other needed materials needed in the water and electricity construction process can be directly placed in the embedded pipes conveniently when the assembly type prefabricated floor slabs are spliced through the embedded pipes.

Description

Technical Field

[0001] The present invention relates to the technical field of building floor slabs, and in particular to an assembled prefabricated floor slab for green energy-saving buildings and a construction method thereof. Background Art

[0002] Prefabricated floor panels for green and energy-saving buildings are a type of modern building component. They are prefabricated in factories and then transported to the construction site for assembly to achieve rapid construction of buildings. This type of floor panel is made of environmentally friendly materials, conforms to the concept of green and energy-saving buildings, and can effectively reduce energy consumption and waste emissions during the construction process. Prefabricated floor panels are standardized and serialized, which facilitates large-scale production and quality control. At the same time, they also improve construction efficiency and shorten the construction period. In addition, they also have good sound insulation and heat insulation properties, which can improve the living comfort of the building.

[0003] Chinese patent publication number CN116607683A discloses an assembled prefabricated floor slab, including a base plate, a filling part and a sealing part. Auxiliary rods welded in a linear array together constitute the reinforcement structure of the support plate and the reinforcement structure when adhering to concrete. The auxiliary rods can improve the strength of the support plate. On the other hand, after pouring concrete, the adhesion strength between the support plate and the concrete can be improved, thereby improving the overall strength. This application solves the problem that although support parts are added inside the floor slab to play an overall supporting role, its structure is not flexible enough.

[0004] When the above-mentioned patented prefabricated floor slabs were prefabricated and put into construction, no locations were reserved for the placement of water and electricity pipes. After the entire building was spliced ​​using the prefabricated floor slabs, additional grooves required for water and electricity were required to be dug at the corresponding positions of the prefabricated floor slabs, resulting in low efficiency of the entire equipment when using the prefabricated floor slabs and conducting construction. Summary of the Invention

[0005] The purpose of the present invention is to provide an assembled prefabricated floor slab and a construction method for green and energy-saving buildings. By pre-welding embedded pipes in the baffle and the bottom plate, the pre-buried embedded pipes can facilitate the water pipes, electric wires, network cables and other required materials required in the water and electricity construction process to be directly placed inside the embedded pipes when splicing the assembled prefabricated floor slabs, so that the water pipes, electric wires, network cables and other required materials can be directly placed when the assembled prefabricated floor slabs are spliced, without the need for subsequent additional trenching, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: prefabricated floor slabs for green and energy-saving buildings, comprising a baffle, wherein three filling blocks are evenly distributed laterally in the middle of the baffle, three embedded pipes are laterally arranged inside the filling blocks, and reinforcing rods are evenly welded laterally on both sides of the filling blocks. A connecting pipe is welded at one end of the embedded pipe, and a second connecting groove connected to the embedded pipe groove is recessed at the other end of the embedded pipe. A base plate is welded at the lower end of the baffle, and concrete is arranged inside the baffle and the base plate. The filling concrete contacts the inside of the baffle, and the production of the prefabricated floor slab can be completed after solidification, and the material for placing the water and electricity pipelines can be directly inserted into the embedded pipe during splicing.

[0007] Preferably, the concrete is recycled concrete, which is an ideal choice for balancing environmental responsibility, economic benefits and technical feasibility, and is the cornerstone material of green buildings.

[0008] Preferably, a second insulation layer is provided at the lower end of one side of the baffle, and a first insulation layer is provided at the upper end of the other side of the baffle. The double-layer alternating high-efficiency insulation layer can avoid affecting the concrete input while providing two layers of insulation positions to achieve efficient insulation.

[0009] Preferably, the first insulation layer and the second insulation layer are vacuum insulation panels, which wrap the entire prefabricated assembled floor slab, so that the final assembled building can improve the thermal insulation capacity and improve the comfort of the building after use.

[0010] Preferably, both sides of the front and rear ends of the filling block are welded to the baffle through connecting strips. By welding the connecting strips to the baffle, the entire filling block can be suspended inside the baffle, which can facilitate the subsequent injection of concrete.

[0011] Preferably, a first reinforcement bracket is horizontally arranged between two adjacent filling blocks, and the first reinforcement bracket is welded and fixed to the baffle. The first reinforcement bracket can facilitate the increase of the contact area with the concrete, improve the bending resistance of the entire prefabricated floor slab, and improve the safety of the building during use.

[0012] Preferably, a top plate is provided around the upper end of the interior of the baffle, and the top plate is welded and fixed to the baffle. A material injection port is provided inside the top plate. The reserved top plate facilitates the injection of concrete and also facilitates increasing the contact area with the lower end of the sound insulation and shock absorption layer, thereby improving the stability of the sound insulation and shock absorption layer after installation.

[0013] Preferably, a sound insulation and shock absorption layer is provided on the upper end of the top plate, and the solidified concrete and the upper end of the top plate are connected to the sound insulation and shock absorption layer by an adhesive, so that the transmission of vibration and noise during daily use is actively limited by the sound insulation and shock absorption layer.

[0014] Preferably, a wear-resistant finishing layer is provided on the upper end of the sound insulation and shock absorption layer, and the wear-resistant finishing layer is connected to the sound insulation and shock absorption layer by a polyurethane adhesive. The wear-resistant finishing layer wraps and protects the surface of the entire prefabricated floor slab to cope with daily contact and trampling, and also wraps and protects the sound insulation and shock absorption layer and concrete position at the lower end.

[0015] The construction method of the assembled prefabricated floor slab for green energy-saving buildings comprises the following steps:

[0016] Step 1: Weld the bottom plate to the lower end of the baffle with the top plate;

[0017] Step 2: pre-weld a second insulation layer on one side of the lower end of the container in step 1;

[0018] Step 3: Evenly distribute the three filling blocks horizontally inside the baffle, and weld additional connecting pipes at the front end of the baffle for subsequent connection to the embedded pipes;

[0019] Step 4: Place a first reinforcement bracket between two adjacent filling blocks;

[0020] Step 5: pre-weld a first insulation layer on the other side of the upper end of the container in step 1;

[0021] Step 6: Pour concrete from the groove and fill it into the container formed in step 1;

[0022] Step 7: Fix the sound insulation and shock absorption layer on the top plate and the upper end of the solidified concrete by adhesive, and fix the wear-resistant finishing layer on the upper end of the sound insulation and shock absorption layer by polyurethane adhesive;

[0023] Step 8: When splicing two adjacent prefabricated floor slabs, the connecting pipe in one prefabricated floor slab is slid into the second connecting groove position in the other prefabricated floor slab. At the same time, the corresponding water pipes, electrical wires, network cables and other materials required to be embedded in the wall of the building can be placed in the embedded pipe;

[0024] Step 9: Spray the fireproof layer on the lower end of the base plate to complete the final construction after splicing.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention pre-welds embedded pipes in the baffles and the bottom plate before pouring concrete into the container formed by the baffles and the bottom plate. The pre-buried embedded pipes can facilitate the direct placement of water pipes, wires, network cables and other required materials required in the water and electricity construction process when splicing the prefabricated prefabricated floor slabs, so that the water pipes, wires, network cables and other required materials can be directly placed in the pre-buried pipes when the prefabricated prefabricated floor slabs are spliced, without the need for subsequent additional trenching, thereby avoiding environmental damage caused by subsequent additional trenching. In addition, the water pipes, wires, network cables and other required materials pre-placed in the pre-buried pipes can be protected by the card slot connection of the connecting pipe and the second connecting slot, thereby avoiding foreign objects from entering the position of the pre-buried pipes during subsequent use, thereby improving the pre-buried effect and service life of the water pipes, wires, network cables and other required materials. Correspondingly, the subsequent trenching step for placing water pipes, wires, network cables and other required materials is omitted, thereby directly improving the construction efficiency of the entire building.

[0027] 2. According to the present invention, before filling the baffle and the bottom plate with concrete, the first insulation layer and the second high-efficiency insulation layer are welded to both sides of the inside of the baffle respectively. At the same time, the first insulation layer and the second high-efficiency insulation layer are respectively located at the upper and lower ends of the inside of the baffle. The alternating distribution of the first insulation layer and the second high-efficiency insulation layer can completely cover the entire prefabricated floor slab by the first insulation layer and the second high-efficiency insulation layer without affecting the filling of concrete, so that the thermal insulation capacity of the prefabricated floor slab is guaranteed in subsequent use, thereby improving the thermal insulation capacity of the building after the entire prefabricated floor slab is spliced. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0029] Figure 2 Schematic diagram of the position relationship of the second connecting groove of the present invention;

[0030] Figure 3 A schematic diagram of the connection trajectory of two assembled prefabricated floor slabs of the present invention;

[0031] Figure 4 This is a cross-sectional view of two assembled prefabricated floor slabs of the present invention after being connected;

[0032] Figure 5 For the present invention Figure 4 A partial enlarged view of area A in the middle;

[0033] Figure 6 This is an exploded view of the assembled prefabricated floor slab of the present invention;

[0034] Figure 7 This is an exploded view of the concrete filling state of the present invention;

[0035] Figure 8Schematic diagram of the position relationship of the filling blocks of the present invention.

[0036] In the figure: 1. baffle; 2. wear-resistant finishing layer; 3. sound insulation and shock absorption layer; 4. fireproof layer; 5. connecting pipe; 6. steel bar; 7. first connecting groove; 8. second connecting groove; 9. embedded pipe; 10. reinforcement rod; 11. first reinforcement bracket; 12. second reinforcement bracket; 13. connecting strip; 14. top plate; 15. injection port; 16. first insulation layer; 17. second insulation layer; 18. concrete; 19. bottom plate; 20. filling block. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to specific embodiments.

[0038] like Figure 1 and Figure 2 As shown, the prefabricated floor slabs and construction method for green and energy-saving buildings of this embodiment include a baffle 1, a bottom plate 19 is provided at the lower end of the baffle 1, and the bottom plate 19 is welded and fixed to the baffle 1. The welding between the bottom plate 19 and the baffle 1 can facilitate the subsequent prefabricated prefabricated floor slabs. Concrete 18 is provided inside the baffle 1 and the bottom plate 19. The production of the prefabricated floor slabs can be achieved by pouring the concrete 18 into the welding position of the baffle 1 and the bottom plate 19.

[0039] Concrete 18 is recycled concrete, with reference to the Chinese patent for recycled concrete with publication number CN110282930A. This patent application describes in detail a type of recycled concrete, which can make the entire prefabricated floor slab green, environmentally friendly and energy-saving. Therefore, the proportion of concrete 18 is not described in detail in the present invention.

[0040] Furthermore, a second insulation layer 17 is provided at the lower end of one side inside the baffle 1, and a first insulation layer 16 is provided at the upper end of the other side inside the baffle 1. The first insulation layer 16 and the second insulation layer 17 are alternately distributed inside the baffle 1, which can provide efficient insulation capacity without affecting the pouring and filling of concrete 18.

[0041] In this embodiment, the first insulation layer 16 and the second insulation layer 17 are vacuum insulation panels, which can provide thermal insulation capabilities within the entire prefabricated floor slab. The first insulation layer 16 and the second insulation layer 17 are pre-installed inside the prefabricated floor slab to avoid the drilling and cutting required for fixing, and to avoid foreign matter generated during drilling and cutting that causes damage to the environment, thereby reducing the complexity of the construction of the first insulation layer 16 and the second insulation layer 17.

[0042] In order to facilitate the installation of water pipes, electric wires, network cables and other required materials in the building, and to avoid affecting the construction efficiency when additional trenches are dug to install water pipes, electric wires, network cables and other required materials, three filling blocks 20 are evenly distributed laterally in the middle position of the baffle 1, and three pre-buried pipes 9 are laterally arranged inside the filling blocks 20. The pre-buried pre-buried pipes 9 can facilitate the direct placement of the required water pipes, electric wires, network cables and other required materials into the pre-buried pipes 9 when splicing the assembled prefabricated floor slabs, without the need for additional trenches for the water pipes, electric wires, network cables and other required materials.

[0043] It is worth mentioning that Figure 8 As shown, reinforcement rods 10 are evenly arranged on both sides of the filling block 20, and the reinforcement rods 10 are welded and fixed to the filling block 20. The reinforcement rods 10 can support both sides of the filling block 20, providing support capacity. At the same time, the reinforcement rods 10 can increase the contact area between the filling block 20 and the concrete 18, thereby improving the filling and fixing effect of the concrete 18.

[0044] In order to fix the filling block 20 before filling with concrete 18 , both sides of the front and rear ends of the filling block 20 are welded and fixed to the baffle 1 through connecting strips 13 , and the filling block 20 can be connected through the connecting strips 13 .

[0045] Further, such as Figure 7 As shown, a first reinforcement bracket 11 is horizontally arranged between two adjacent filling blocks 20, and the first reinforcement bracket 11 is welded and fixed to the baffle 1. The first reinforcement bracket 11 can improve the support of the baffle 1, strengthen the bearing capacity of the baffle 1, and improve the stability and safety of subsequent construction.

[0046] In order to improve the sound insulation and shock absorption capabilities of the entire prefabricated floor, a top plate 14 is provided around the upper end of the interior of the baffle 1, and the top plate 14 is welded and fixed to the baffle 1. An injection port 15 is provided inside the top plate 14, which facilitates the injection of concrete 18. While facilitating injection, the top plate 14 can expand the contact area with the sound insulation and shock absorption layer 3, thereby improving the stability of the connection of the sound insulation and shock absorption layer 3.

[0047] A sound insulation and shock absorption layer 3 is provided at the upper end of the top plate 14. The solidified concrete 18 and the upper end of the top plate 14 are connected to the sound insulation and shock absorption layer 3 by an adhesive. The adhesive can realize the connection of the sound insulation and shock absorption layer 3, and the sound insulation and shock absorption layer 3 can limit noise and vibration.

[0048] In addition, if Figure 6As shown, a wear-resistant finishing layer 2 is provided on the upper end of the sound insulation and shock absorption layer 3. The wear-resistant finishing layer 2 and the sound insulation and shock absorption layer 3 are connected by a polyurethane adhesive. When the prefabricated floor slabs are spliced, the wear-resistant finishing layer 2 can wrap and protect the upper end of the entire prefabricated floor slab.

[0049] It is worth mentioning that a fireproof layer 4 is provided at the lower end of the base plate 19. After the prefabricated floor slabs are spliced, the fireproof layer 4 can be sprayed on the surface of the bottommost base plate 19 to achieve fireproof capability when the building is in use, thereby avoiding damage to the prefabricated floor slabs caused by burning, and avoiding damage to the building caused by burning, thereby improving the safety of the building when in use.

[0050] In order to connect two adjacent prefabricated floor slabs, a connecting pipe 5 is provided at one end of the embedded pipe 9, and the connecting pipe 5 is welded and fixed to one end of the embedded pipe 9. The embedded pipe 9 can be connected through the connecting pipe 5, and the connecting pipe 5 can be extended to the outside of the baffle 1. The connecting pipe 5 can facilitate the connection between the two embedded pipes 9. In order to protect the materials placed inside the embedded pipe 9, such as Figure 4 and Figure 5 As shown, the other end of the embedded pipe 9 is recessed to provide a second connecting groove 8, and the second connecting groove 8 is connected to the embedded pipe 9 by a card slot. After the two prefabricated floor slabs are assembled, one of the prefabricated floor slabs is slid into the second connecting groove 8 of the other prefabricated floor slab through the connecting pipe 5 to complete the connection. The connection between the second connecting groove 8 and the card slot of the embedded pipe 9 can improve the protection capability of the items placed inside the embedded pipe 9.

[0051] In order to improve the stability of the connection between the two baffles 1, as Figure 3 As shown, steel bars 6 are provided on both sides of one end of the baffle 1, and the steel bars 6 are welded and fixed to the baffle 1. First connecting grooves 7 are recessed on both sides of the other end of the baffle 1, and the first connecting grooves 7 are connected to the steel bars 6 by a slot. When the connecting pipe 5 is slidably installed into the second connecting groove 8, the steel bars 6 are slidably installed into the first connecting groove 7 to achieve auxiliary fixation, thereby assisting the splicing of two adjacent prefabricated assembled floor slabs.

[0052] In Example 2, in order to improve the stability of the baffle 1 during use, a second reinforcement bracket 12 is provided on both sides of the inside of the baffle 1, and the second reinforcement bracket 12 is welded and fixed to the baffle 1. The second reinforcement bracket 12 can provide additional support to both sides of the inside of the baffle 1.

[0053] Working principle: weld the bottom plate 19 to the lower end of the baffle 1 with the top plate 14, so that the top plate 14, the baffle 1 and the bottom plate 19 form a container, and pre-weld the second insulation layer 17 on one side of the lower end of the container, and evenly distribute the three filling blocks 20 inside the baffle 1 laterally. The filling blocks 20 are welded and fixed to the baffle 1 through the connecting strips 13 on both sides of the front and rear ends. The embedded pipe 9 is also welded and fixed to the baffle 1. A hole is dug in the outer wall of the baffle 1. The dug hole has the same diameter as the embedded pipe 9, and a connecting pipe 5 for subsequent connection of the embedded pipe 9 is additionally welded at the front end of the baffle 1. A first reinforcement bracket 11 is placed between two adjacent filling blocks 20. The front and rear ends of the placed first reinforcement bracket 11 are also welded to the baffle 1, and a second reinforcement bracket 12 is additionally welded to the edge positions on both sides of the inside of the baffle 1. The first insulation layer 16 is pre-welded on the other side of the upper end of the container. The first insulation layer 16 and the second insulation layer 17 are alternately welded to the inside of the container, which does not affect the subsequent concrete 18 filling while improving the insulation performance. The concrete 18 is poured from the groove 15 and filled into the container. The concrete 18 contacts the top plate 14, the first insulation layer 16, the second reinforcement bracket 12, the filling block 20, the first reinforcement bracket 11, the second insulation layer 17 and the reinforcement rod 10 and is fixed by solidification. The sound insulation and shock absorption layer 3 is fixed to the upper end of the top plate 14 and the solidified concrete 18 by adhesive. The wear-resistant finishing layer is fixed to the upper end of the sound insulation and shock absorption layer 3 by polyurethane adhesive, completing the production of the prefabricated floor. When splicing two adjacent prefabricated floor slabs, the connecting pipe 5 in one prefabricated floor slab is slidably inserted into the second connecting groove 8 in the other prefabricated floor slab. At the same time, the corresponding water pipes, electrical wires, network cables and other materials required to be embedded in the wall can be placed in the embedded pipe 9 during the connection, which can improve the construction efficiency of the subsequent water and electricity stage. At the same time, the steel bars 6 will be inserted into the first connecting groove 7 to provide an additional connection. The lower end of the bottom plate 19 is sprayed with a fireproof layer 4 to complete the final construction after splicing.

[0054] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0055] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An assembled prefabricated floor slab for a green energy-saving building, comprising a baffle (1), characterized in that: Three filling blocks (20) are evenly distributed laterally in the middle of the baffle (1), three embedded pipes (9) are laterally arranged inside the filling blocks (20), and reinforcing rods (10) are evenly welded laterally on both sides of the inside of the filling blocks (20). A connecting pipe (5) is welded to one end of the embedded pipe (9), and a second connecting groove (8) connected to the embedded pipe (9) slot is recessed in the other end of the embedded pipe (9). A bottom plate (19) is welded to the lower end of the baffle (1), and concrete (18) is arranged inside the baffle (1) and the bottom plate (19).

2. The prefabricated floor slab for green and energy-saving buildings according to claim 1 is characterized in that: The concrete (18) is recycled concrete.

3. The prefabricated floor slab for green and energy-saving buildings according to claim 1 is characterized in that: A second thermal insulation layer (17) is provided at the lower end of one side of the interior of the baffle (1), and a first thermal insulation layer (16) is provided at the upper end of the other side of the interior of the baffle (1).

4. The prefabricated floor slab for green and energy-saving buildings according to claim 3 is characterized in that: The first thermal insulation layer (16) and the second thermal insulation layer (17) are vacuum insulation panels.

5. The prefabricated floor slab for green and energy-saving buildings according to claim 1 is characterized in that: Both sides of the front and rear ends of the filling block (20) are welded and fixed to the baffle (1) via connecting strips (13).

6. The prefabricated floor slab for green and energy-saving buildings according to claim 5, characterized in that: A first reinforcement bracket (11) is transversely arranged between two adjacent filling blocks (20), and the first reinforcement bracket (11) is fixed to the baffle (1) by welding.

7. The prefabricated floor slab for green and energy-saving buildings according to claim 6, characterized in that: A top plate (14) is arranged around the upper end of the interior of the baffle (1), and the top plate (14) is fixed to the baffle (1) by welding, and a material injection port (15) is arranged inside the top plate (14).

8. The prefabricated floor slab for green and energy-saving buildings according to claim 7, characterized in that: A sound insulation and shock absorption layer (3) is provided at the upper end of the top plate (14), and the solidified concrete (18) and the upper end of the top plate (14) and the sound insulation and shock absorption layer (3) are connected by adhesive.

9. The prefabricated floor slab for green and energy-saving buildings according to claim 8, characterized in that: A wear-resistant finishing layer (2) is provided on the upper end of the sound insulation and shock absorption layer (3), and the wear-resistant finishing layer (2) and the sound insulation and shock absorption layer (3) are connected via a polyurethane adhesive.

10. A construction method for prefabricated floor slabs for green energy-saving buildings according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Weld the bottom plate (19) to the lower end of the baffle (1) with the top plate (14); Step 2: pre-welding a second insulation layer (17) on one side of the lower end of the container in step 1; Step 3: Distribute the three filling blocks (20) evenly and laterally inside the baffle (1), and weld an additional connecting pipe (5) at the front end of the baffle (1) for subsequent connection with the embedded pipe (9); Step 4: placing a first reinforcement bracket (11) between two adjacent filling blocks (20); Step 5: pre-weld a first insulation layer (16) on the other side of the upper end of the container in step 1; Step 6: Pour concrete (18) from the groove (15) into the container formed in step 1; Step 7: Fix the sound insulation and shock absorption layer (3) on the top plate (14) and the upper end of the solidified concrete (18) by means of an adhesive, and fix the wear-resistant finishing layer on the upper end of the sound insulation and shock absorption layer (3) by means of a polyurethane adhesive; Step 8: When splicing two adjacent prefabricated floor slabs, the connecting pipe (5) in one of the prefabricated floor slabs is slidably inserted into the second connecting groove (8) in the other prefabricated floor slab. During the connection, the corresponding water pipes, electrical wires, network cables and other materials required to be embedded in the wall of the building can be placed in the embedded pipe (9); Step nine: spray the fireproof layer (4) on the lower end of the base plate (19) to complete the final construction after splicing.

Images