Prefabricated assembly type beam and slab combined system

Abstract

The invention discloses a prefabricated assembly type beam and slab combination system, and relates to the technical field of building structures, the prefabricated assembly type beam and slab combination system is characterized in that at least one first connecting groove is formed in a first floor support plate, and the first floor support plate is further connected with at least one first connecting block; the first floor support plate is provided with at least one first connecting groove, the second floor support plate is provided with at least one second connecting groove and further connected with at least one second connecting block, the first floor support plate and the second floor support plate are matched and fixedly connected, at least part of the first connecting block is located in the second connecting groove, and at least part of the second connecting block is located in the first connecting groove. Connecting holes are pre-formed in the first floor support plate and the second floor support plate; connecting bolts are embedded in the supporting beams and inserted into the connecting holes, the first floor bearing plate and the second floor bearing plate are prefabricated floor slabs, and the supporting beams are prefabricated beams. According to the technical scheme, the prefabricated beam and slab combined system adapts to building construction in the low-temperature environment, the construction efficiency is improved, the cost is saved, and the influence on the environment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building structures, and in particular to a prefabricated assembled beam-slab combination system. Background Art

[0002] Prefabricated building floor systems mostly use prefabricated truss reinforced composite slabs, and further tie steel bars and pour concrete to form a beam-slab composite system. A large amount of concrete pouring is required during the construction process, and the pouring of concrete has certain requirements for the ambient temperature. Generally speaking, the suitable ambient temperature for concrete pouring is 5℃ to 30℃. Within this temperature, concrete has good fluidity, coagulation and strength development. When the ambient temperature is close to zero, the strength development of concrete is significantly affected.

[0003] In order to solve the problem of concrete pouring in low temperature environment, the existing technology mainly adopts methods such as adjusting the concrete mix ratio and heating and curing. However, the above methods have certain limitations, such as reduced durability and increased cost, and the energy consumption of heating and curing is high, which is not conducive to environmental protection.

[0004] Therefore, developing a new type of beam-slab combination system to adapt to construction in low temperature environments has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The main purpose of the present invention is to provide a prefabricated assembled beam-slab combination system, aiming to solve the technical problem that the current beam-slab combination system is not suitable for construction in a low-temperature environment.

[0006] To achieve the above-mentioned purpose, the present invention proposes a prefabricated assembled beam-slab combination system, comprising:

[0007] A first floor decking plate, wherein the first floor decking plate has at least one first connecting groove, and the first floor decking plate is further connected to at least one first connecting block, wherein the first connecting block is integrally formed with the first floor decking plate;

[0008] a second floor decking plate, wherein the second floor decking plate has at least one second connecting groove, and the second floor decking plate is further connected to at least one second connecting block, the second connecting block is integrally formed with the second floor decking plate, the first floor decking plate matches and is fixedly connected with the second floor decking plate, the first connecting groove and the second connecting block and the first connecting block and the second connecting groove are respectively arranged opposite to each other, and at least a part of the first connecting block is located in the second connecting groove, and at least a part of the second connecting block is located in the first connecting groove, and the first floor decking plate and the second floor decking plate are preset with connecting holes; and

[0009] A support beam, wherein the support beam is pre-embedded with connecting bolts, the first floor decking plate and the second floor decking plate are arranged on the support beam, and the connecting bolts are inserted into the connecting holes, the connecting bolts are locked and connected with locking nuts, the first floor decking plate and the second floor decking plate are prefabricated floor decks, and the support beams are all prefabricated beams.

[0010] In one embodiment, the first floor decking plate, the second floor decking plate and the support beam define a gap, a connector is provided in the gap, and the connector is a grouting concrete body or a post-cast concrete body.

[0011] In one embodiment, the first floor deck is provided with a first short connecting rib, and the second floor deck is provided with a second short connecting rib. The first short connecting rib and the second short connecting rib are staggered and fixedly connected.

[0012] In one embodiment, the prefabricated assembled beam-slab combination system further includes a post-placed steel bar assembly, which is disposed in the gap and respectively connects the first short connecting bars and the second short connecting bars.

[0013] In one embodiment, the post-placed steel bar assembly includes stirrups and main bars, the first connecting short bars and the second connecting short bars are bent, the stirrups and / or the main bars are respectively connected to the first connecting short bars and the second connecting short bars, and the main bars are connected to the stirrups.

[0014] In one embodiment, the support beam is provided with a cushion block, the cushion block is arranged in a one-to-one correspondence with the connecting bolts, and the cushion block is sleeved on the connecting bolts.

[0015] In one embodiment, when the connector is a grouting connector, the support beam is provided with a grouting port and a grouting channel connected to the grouting port, the grouting channel is connected to the gap, and a guide groove is provided in the connecting hole.

[0016] In one embodiment, the first connection block and the second connection block are arranged crosswise, and both of them respectively have a connection channel;

[0017] The prefabricated assembled beam-slab combination system also includes connecting steel bars and limiting members. The connecting channel is used to accommodate the connecting steel bars, and both ends of the connecting steel bars are respectively connected to the limiting members.

[0018] In one embodiment, a groove is formed in the first connecting block and / or the second connecting block near the edge, and the groove is provided with a guiding slope. Both ends of the connecting steel bar extend into the groove respectively and are limited by the limiting member.

[0019] In one embodiment, the prefabricated assembled beam-slab combination system also includes a connecting pipe, and pre-buried channels are respectively provided inside the first floor deck and the second floor deck, and pipes are provided in the pre-buried channels. The connecting pipe is arranged in the gap, and both ends of the connecting pipe are respectively connected to the pre-buried channels, and the inner diameter of the connecting pipe is the same as the inner diameter of the pipe.

[0020] The technical solution of the present invention adopts a prefabricated first floor deck, a second floor deck and a supporting beam, and connects the three by splicing to form a beam-slab combination system, thereby avoiding the construction method of pouring concrete over a large area to adapt to the construction in a low-temperature environment. The beam-slab combination system provided by the technical solution can also improve construction efficiency, save costs, and reduce the impact on the environment. Specifically, the first floor deck and the second floor deck are connected by matching connecting grooves and connecting blocks, which can improve the shear bearing capacity and bending stiffness of the floor deck, and the structure is simple and the on-site construction is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the exploded structure of an embodiment of the prefabricated assembled beam-slab combination system provided by the present invention;

[0023] Figure 2 A schematic structural diagram of a connector of a prefabricated assembled beam-slab assembly system according to an embodiment of the present invention;

[0024] Figure 3 A schematic structural diagram of a connector of another embodiment of the prefabricated assembled beam-slab assembly system provided by the present invention;

[0025] Figure 4 A schematic diagram of the structure of connecting steel bars in an embodiment of the prefabricated assembled beam-slab assembly system provided by the present invention;

[0026] Figure 5 A schematic diagram of the structure of a U-shaped steel bar in an embodiment of a prefabricated assembled beam-slab combination system provided by the present invention;

[0027] Figure 6 A schematic diagram of the structure of the connecting pipe of the prefabricated assembled beam-slab combination system embodiment provided by the present invention.

[0028] Description of Figure Numbers:

[0029] 100, first floor decking; 110, first connecting groove; 120, first connecting block; 130, first connecting short rib; 200, second floor decking; 210, second connecting groove; 220, second connecting block; 230, second connecting short rib; 300, supporting beam; 310, connecting bolt; 320, grouting port; 410, connecting hole; 420, connecting channel; 430, groove; 431, guiding slope; 440, U-shaped steel bar; 450, embedded channel; 460, pipeline; 500, connector; 600, post-installed steel bar assembly; 700, pad; 800, connecting pipe; 900, connecting steel bar; 910, limiter.

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] In the prior art, in order to solve the problem of concrete pouring in a low temperature environment, the prior art mainly adopts methods such as adjusting the concrete mix ratio and heating and curing. However, the above methods have certain limitations, such as reduced durability and increased cost, and high energy consumption for heating and curing, which is not conducive to environmental protection.

[0035] The invention provides a prefabricated assembled beam-slab combination system.

[0036] See also Figures 1 to 6 As shown, in one embodiment of the present invention, the prefabricated assembled beam-slab combination system includes: a first floor decking plate 100, a second floor decking plate 200 and a supporting beam 300, wherein the first floor decking plate 100 has at least one first connecting groove 110, and the first floor decking plate 100 is also connected to at least one first connecting block 120, and the first connecting block 120 is integrally formed with the first floor decking plate 100.

[0037] The second floor decking plate 200 has at least one second connecting groove 210, and the second floor decking plate 200 is also connected to at least one second connecting block 220, the second connecting block 220 and the second floor decking plate 200 are integrally formed, the first floor decking plate 100 and the second floor decking plate 200 are matched and fixedly connected, the first connecting groove 110 and the second connecting block 220 and the first connecting block 120 and the second connecting groove 210 are respectively arranged opposite to each other, and the first connecting block 120 is at least partially located in the second connecting groove 210, and the second connecting block 220 is at least partially located in the first connecting groove 110, and the first floor decking plate 100 and the second floor decking plate 200 are preset with connecting holes 410.

[0038] The support beam 300 is pre-embedded with connecting bolts 310, the first floor deck 100 and the second floor deck 200 are arranged on the support beam 300, and the connecting bolts 310 are inserted into the connecting holes 410, and the connecting bolts 310 are locked and connected with locking nuts. The first floor deck 100 and the second floor deck 200 are prefabricated floor slabs, and the support beams 300 are all prefabricated beams.

[0039] In the specific implementation process, the first floor deck 100 and the second floor deck 200 are matched and respectively installed on the support beam 300 to form a beam-slab combination system. It should be noted that the three are prefabricated in the factory and are spliced ​​and combined at the construction site, thereby avoiding the need for a large amount of concrete pouring on site to form the floor deck, so as to adapt to the construction in a low temperature environment.

[0040] A plurality of first connecting blocks 120 and first connecting grooves 110 are arranged alternately at the side end of the first floor decking plate 100. Correspondingly, a plurality of second connecting blocks 220 and second connecting grooves 210 are arranged alternately at the side end of the second floor decking plate 200. The first connecting blocks 120 are at least partially located in the second connecting grooves 210, and the second connecting blocks 220 are at least partially located in the first connecting grooves 110, so as to improve the strength and shear bearing capacity of the connection between the two floor decking plates.

[0041] The support beam 300 is pre-buried with a plurality of connecting bolts 310. In the specific implementation process, the connecting bolts 310 are arranged in two rows in parallel. The two rows of connecting bolts 310 correspond to the connecting holes 410 connecting the first floor deck 100 and the second floor deck 200, respectively, and are locked by locking nuts, thereby realizing the connection between the two floor decks and the support beam 300, and improving the stability of the beam-slab combination system. Of course, it is understandable that according to the building construction specifications, the first floor deck 100, the second floor deck 200 and the support beam 300 are also fixed by grouting or glue injection, so that the three form a whole to ensure the strength of the building structure.

[0042] The technical solution of the present invention adopts a prefabricated first floor deck 100, a second floor deck 200 and a support beam 300, and connects the three by splicing to form a beam-slab combination system, thereby avoiding the construction method of pouring concrete over a large area to adapt to the construction in a low-temperature environment. The beam-slab combination system provided by the technical solution can also improve construction efficiency, save costs, and reduce the impact on the environment. Specifically, the first floor deck 100 and the second floor deck 200 are connected by matching connecting grooves and connecting blocks, which can improve the shear bearing capacity and bending stiffness of the floor deck, and the structure is simple and the on-site construction is relatively convenient.

[0043] In one embodiment, the first floor decking plate 100, the second floor decking plate 200 and the support beam 300 form a gap, a connector 500 is provided in the gap, and the connector 500 is a grouting concrete body or a post-cast concrete body.

[0044] In the specific implementation process, in order to improve the strength of the beam-slab combination system, the first floor deck 100, the second floor deck 200 and the support beam 300 are surrounded by a gap, and the connector 500 is formed by grouting or post-casting concrete in the gap. Of course, it can be understood that the connector 500 is respectively fixedly connected to the first floor deck 100, the second floor deck 200 and the support beam 300. The connector 500 can also adjust the flatness of the connection between the first floor deck 100 and the second floor deck 200 during the construction process to ensure the flatness of the entire floor deck.

[0045] Furthermore, the first floor decking plate 100 is provided with a first short connecting rib 130, and the second floor decking plate 200 is provided with a second short connecting rib 230. The first short connecting rib 130 and the second short connecting rib 230 are staggered and fixedly connected.

[0046] It should be noted that the first short connecting bar 130 is a prestressed steel bar or a distributed steel bar in the first floor deck 100, and extends out of the concrete part of the floor deck to form the first short connecting bar 130. It can be understood that the second short connecting bar 230 refers to the first short connecting bar 130, and will not be described in detail here.

[0047] In the specific implementation process, Figure 3 As shown, when grouting is performed in the gap to form a connector 500, the gap between the first floor deck 100 and the second floor deck 200 is small, and the first connecting short ribs 130 and the second connecting short ribs 230 are offset and fixedly connected by welding to improve the shear resistance and strength of the overall floor deck.

[0048] In another embodiment, the prefabricated assembled beam-slab combination system further includes a post-placed steel bar assembly 600, which is disposed in the gap and respectively connects the first short connecting bars 130 and the second short connecting bars 230.

[0049] In the specific implementation process, Figure 2 As shown, when the connector 500 is formed by pouring concrete in the gap, a post-reinforcement assembly 600 can be placed in the gap, and the first connecting short bar 130 and the second connecting short bar 230 can be connected. At this time, the first connecting short bar 130 and the second connecting short bar 230 can be welded and connected, or they can be connected to the post-reinforcement assembly 600 separately, so as to further improve the strength and shear resistance of the overall floor slab formed by the first floor slab 100 and the second floor slab 200. Of course, it can be understood that compared with the prior art that requires a large amount of concrete to be poured to form an overall floor slab, this embodiment connects the first floor slab 100 and the second floor slab 200 by pouring a small amount of concrete, and can be constructed in a low temperature environment, and take corresponding measures to ensure the strength of the concrete, and the impact on the overall building construction can be ignored.

[0050] Furthermore, the post-installed steel bar assembly 600 includes stirrups and main bars, the first connecting short bars 130 and the second connecting short bars 230 are bent, the stirrups and / or main bars are respectively connected to the first connecting short bars 130 and the second connecting short bars 230, and the main bars are connected to the stirrups.

[0051] In the specific implementation process, the main reinforcement includes at least four, and the stirrups are arranged at intervals. Specifically, during the construction process, after the first floor deck 100 is hoisted, the two main reinforcements below are laid first, and then the second floor deck 200 is hoisted, and finally the stirrups are connected around the main reinforcements and tied and connected respectively. Of course, the stirrups and the main reinforcements are tied and connected to the first short connecting reinforcement 130 and the second short connecting reinforcement 230 respectively. In addition, the first short connecting reinforcement 130 and the second short connecting reinforcement 230 are also bent, wherein some stirrups are also connected at the bends to achieve the connection between the first short connecting reinforcement 130 and the second short connecting reinforcement. After the steel bar assembly 600 is tied, concrete is poured to form a connector 500.

[0052] During the specific construction process, ultra-high performance concrete UHPC is used for pouring concrete. UHPC has excellent properties such as ultra-high strength, ultra-high toughness, and ultra-long durability. Compared with ordinary concrete, it can form a stronger bonding and anchoring effect on the steel bars in the slots (the anchoring performance is about 5 to 7 times that of ordinary C30 concrete), ensuring the bearing capacity, stiffness and ductility of the joints between the fully prefabricated floor slabs, and ensuring the strength and stability of the beam-slab composite system.

[0053] In one embodiment, the support beam 300 is provided with a pad 700, and the pad 700 is arranged in a one-to-one correspondence with the connecting bolt 310, and the pad 700 is sleeved on the connecting bolt 310. In the specific implementation process, the pad 700 is used for leveling and controlling the elevation of the first floor deck 100 and the second floor deck 200. Further, in one embodiment, the pad 700 is provided with a notch to facilitate the flow of grouting material into the connecting hole 410. In another embodiment, the connecting hole 410 is also provided with a guide hole, and the edge of the guide hole in the radial direction extends out of the edge of the pad 700 to facilitate the flow of grouting material.

[0054] It can be understood that after the connecting bolt 310 is inserted into the connecting hole 410, grouting is performed again, and after the grouting material overflows the top surface of the first floor deck 100 and the second floor deck 200, and before the grouting material solidifies, the locking nut is tightened and grouting is performed again to seal the connecting hole 410.

[0055] In one embodiment, when the connector 500 is a grouting connector 500 , the support beam 300 is provided with a grouting port 320 and a grouting channel connected to the grouting port 320 , the grouting channel is connected to the gap, and a guide groove is provided in the connecting hole 410 .

[0056] In the specific implementation process, the grouting port 320 is located on one side of the support beam 300, and the grouting material enters the gap from the grouting port 320 and the grouting channel, and enters the connecting hole 410 through the guide groove to improve the stability between the connecting bolt 310 and the first floor deck 100 and the second floor deck 200. Furthermore, when the grouting material overflows the top of the gap, the grouting is stopped and the grouting port 320 is blocked.

[0057] In one embodiment, the first connecting block 120 and the second connecting block 220 are cross-arranged, and a connecting channel 420 is respectively provided in both of them; the prefabricated assembled beam-slab combination system also includes connecting steel bars 900 and limiting members 910, and the connecting channel 420 is used to accommodate the connecting steel bars 900, and the two ends of the connecting steel bars 900 are respectively connected to the limiting members 910.

[0058] Specifically, refer to Figure 4 As shown, the first connection block 120 and the second connection block 220 at least partially overlap so that the two intersect, and the connecting channel 420 runs through the overlapping part of the two, so that the connecting channels 420 of the two are continuous, thereby facilitating the connection steel bar 900 to pass into the connecting channel 420. In the specific implementation process, the connecting steel bar 900 extends in the horizontal direction, and the two ends are locked and limited by the limit members 910 respectively. Furthermore, in order to facilitate the construction of the connecting steel bar 900, in this embodiment, the horizontal heights of the two ends of the connecting steel bar 900 are higher than the horizontal height of the middle part, so that the connecting steel bar 900 has a certain curvature, which is convenient for inserting the connecting steel bar 900 into the connecting channel 420. It can be understood that the connecting channel 420 is adapted accordingly. In addition, the diameter of the connecting steel bar 900 is larger than the diameter of the main bar and the short bar to ensure the strength of the connecting steel bar 900. In another embodiment, refer to Figure 5 As shown, U-shaped steel bars 440 are further arranged inside the first connecting block 120 and the second connecting block 220, and the bending part of the U-shaped steel bars 440 is located on the side of the connecting channel 420 close to the edge in the radial direction, that is, the U-shaped steel bars 440 surround the side of the connecting channel 420 close to the outside of the floor decking to improve the shear strength of the two floor deckings.

[0059] In one embodiment, a groove 430 is formed in the first connecting block 120 and / or the second connecting block 220 near the edge, and the groove 430 is provided with a guide slope 431 . Both ends of the connecting steel bar 900 extend into the groove 430 respectively and are limited by the limiting member 910 .

[0060] Here, the first connection block 120 and the second connection block 220 are collectively referred to as connection blocks. In the specific implementation process, a groove 430 is opened on the top of the connection block, and the groove 430 is connected to the connection channel 420 and is located at the end of the connection channel 420, which is used to accommodate the limiter 910. The limiter 910 is a nut and a limiter plate, and is locked and connected with the connecting steel bar 900 to fix the connecting steel bar 900 on the first load-bearing floor and the second load-bearing floor. The guide slope 431 extends from the bottom of the groove 430 to the top of the groove 430 to facilitate the installation of the connecting steel bar 900. It can be understood that grouting is required at the groove 430 after locking, and the grouting material is stopped after overflowing at another groove 430. It should be noted that there is a gap between the limiter plate and the connection channel 420 to facilitate the circulation of the grouting material.

[0061] refer to Figure 6 As shown, in one embodiment, the prefabricated assembled beam-slab combination system also includes a connecting pipe 800, and the first floor deck 100 and the second floor deck 200 are respectively provided with embedded channels 450, and the embedded channels 450 are provided with pipes 460, and the connecting pipe 800 is arranged in the gap, and the two ends of the connecting pipe 800 are respectively connected to the embedded channels 450, and the inner diameter of the connecting pipe 800 is the same as the inner diameter of the pipe 460.

[0062] In this embodiment, the first floor deck 100 and the second floor deck 200 are both prefabricated panels. It is understandable that the floor deck needs to be lined with pipelines. During the prefabrication process, the pre-buried connecting pipe 800 can avoid the need to open a channel in the floor deck later. Specifically, grouting is required in the gap. In order to prevent the grouting material from flowing into the pre-buried channel 450 and the pipeline 460, a connecting pipe 800 is provided in the gap, and both ends of the connecting pipe 800 are extended into the pre-buried channel 450, thereby blocking the connection between the pipeline 460 and the gap to prevent the grouting material from entering the pipeline. Among them, the inner diameter of the connecting pipe 800 is the same as the inner diameter of the pipeline 460, so that the inner wall of the entire pipeline 460 is smooth, which is convenient for the later installation of the line.

[0063] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A prefabricated beam-slab assembly system, characterized in that: include: A first floor decking plate, wherein the first floor decking plate has at least one first connecting groove, and the first floor decking plate is further connected to at least one first connecting block, wherein the first connecting block is integrally formed with the first floor decking plate; a second floor decking plate, wherein the second floor decking plate has at least one second connecting groove, and the second floor decking plate is further connected to at least one second connecting block, the second connecting block is integrally formed with the second floor decking plate, the first floor decking plate matches and is fixedly connected with the second floor decking plate, the first connecting groove and the second connecting block and the first connecting block and the second connecting groove are respectively arranged opposite to each other, and at least a part of the first connecting block is located in the second connecting groove, and at least a part of the second connecting block is located in the first connecting groove, and the first floor decking plate and the second floor decking plate are preset with connecting holes; and A support beam, wherein the support beam is pre-embedded with connecting bolts, the first floor decking plate and the second floor decking plate are arranged on the support beam, and the connecting bolts are inserted into the connecting holes, the connecting bolts are locked and connected with locking nuts, the first floor decking plate and the second floor decking plate are prefabricated floor decks, and the support beams are all prefabricated beams.

2. The prefabricated assembled beam-slab system according to claim 1, characterized in that: The first floor decking plate, the second floor decking plate and the support beam form a gap, a connector is provided in the gap, and the connector is a grouting concrete body or a post-cast concrete body.

3. The prefabricated assembled beam-slab assembly system according to claim 2, characterized in that: The first floor decking plate is provided with a first short connecting rib, and the second floor decking plate is provided with a second short connecting rib. The first short connecting rib and the second short connecting rib are staggered and fixedly connected.

4. The prefabricated assembled beam-slab system according to claim 3, characterized in that: The prefabricated assembled beam-slab combination system also includes a post-placed steel bar assembly, which is arranged in the gap and respectively connects the first short connecting bars and the second short connecting bars.

5. The prefabricated assembled beam-slab system according to claim 3, characterized in that: The post-placed steel bar assembly includes stirrups and main bars, the first connecting short bars and the second connecting short bars are bent, the stirrups and / or the main bars are respectively connected to the first connecting short bars and the second connecting short bars, and the main bars are connected to the stirrups.

6. The prefabricated assembled beam-slab assembly system according to claim 2, characterized in that: The support beam is provided with a cushion block, the cushion block is arranged in one-to-one correspondence with the connecting bolts, and the cushion block is sleeved on the connecting bolts.

7. The prefabricated assembled beam-slab assembly system according to claim 2 or 6, characterized in that: When the connector is a grouting connector, the support beam is provided with a grouting port and a grouting channel connected to the grouting port, the grouting channel is connected to the gap, and a guide groove is provided in the connecting hole.

8. The prefabricated assembled beam-slab system according to claim 1, characterized in that: The first connection block and the second connection block are arranged crosswise, and both of them respectively have connection channels; The prefabricated assembled beam-slab combination system also includes connecting steel bars and limiting members. The connecting channel is used to accommodate the connecting steel bars, and both ends of the connecting steel bars are respectively connected to the limiting members.

9. The prefabricated assembled beam-slab system according to claim 8, characterized in that: A groove is formed in the first connecting block and / or the second connecting block near the edge. The groove is provided with a guiding inclined surface. Both ends of the connecting steel bar extend into the groove respectively and are limited by the limiting member.

10. The prefabricated assembled beam-slab system according to claim 2, characterized in that: The prefabricated assembled beam-slab combination system also includes a connecting pipe. The first floor deck and the second floor deck are respectively provided with embedded channels, and pipes are provided in the embedded channels. The connecting pipe is arranged in the gap, and both ends of the connecting pipe are respectively connected to the embedded channels, and the inner diameter of the connecting pipe is the same as the inner diameter of the pipe.

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