Continuous force transmission precast beam-plate connecting structure

Abstract

A continuous force transmission precast beam-plate connecting structure is characterized by comprising at least two parallel plate bodies and at least one longitudinal beam, the longitudinal beam is clamped between the two plate bodies, and the two side walls of the longitudinal beam are attached to the plate bodies and fixed through a plurality of bolts. Continuous force transmission can be achieved, namely, loads can be evenly and continuously transmitted through the contact face, the local stress concentration phenomenon caused by hinging and welding is avoided, the anti-fatigue performance of the structure under repeated loads is remarkably improved, and the rigidity and stability are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of component connection technology, and in particular to a precast beam-slab connection structure for continuous force transmission. Background Technology

[0002] Modular structures, due to their high efficiency and flexibility, have been widely used in industrial and infrastructure construction such as buildings and bridges.

[0003] Existing prefabricated modules, such as T-shaped prefabricated modules, typically consist of two slabs and a longitudinal beam positioned between them. The longitudinal beam is located at the joint between the two slabs. There are three main ways to connect the longitudinal beam to the slab: the first is that both sides of the longitudinal beam are hinged to the slab; the second is that one side of the longitudinal beam is hinged to one slab, and the other side is bolted to the other slab; and the third is that both sides of the longitudinal beam are welded to the slab.

[0004] Of the three methods mentioned above, hinged or welded connections often inevitably result in seams, which directly affect the integrity and stability of the overall structure. Especially when relying on welding, defects are prone to exist within the weld, making it impossible to fully guarantee the connection strength and reliability. Simultaneously, the welding process significantly increases labor and process costs during manufacturing. Furthermore, welding easily causes thermal deformation of components, making it difficult to guarantee the flatness and dimensional accuracy of the overall structure. During subsequent on-site installation, cumulative errors and deformation issues often lead to difficulties in installation and coordination, increasing construction complexity. While hinged connections do not have the welding deformation problem, they rely on mechanical connectors and also suffer from obvious seams. More fundamentally, whether welded or hinged, it is difficult to achieve continuous and uniform force transmission in the connection area, often resulting in stress abrupt changes or concentrations, affecting the overall structural mechanical properties and long-term durability. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and provide a precast beam-slab connection structure with high connection strength and stability and high installation efficiency for continuous force transmission.

[0006] The technical solution of the present invention is: a precast beam-slab connection structure for continuous force transmission, characterized in that it includes at least two parallel slabs and at least one longitudinal beam, wherein the longitudinal beam is sandwiched between the two slabs, and its side walls are attached to the slabs and fixed by a number of bolts.

[0007] Furthermore, the sidewall of the longitudinal beam has several pre-drilled connection holes along its length, and screw seats are pre-embedded in the holes.

[0008] Furthermore, at least a portion of the inner cavity of the longitudinal beam has connecting ribs between the screw seats that are positioned opposite each other.

[0009] Furthermore, both the longitudinal beam and the plate are core plates, and the core plate includes an upper panel, a lower panel, a sandwich layer between the two, and a frame around the sandwich layer. The core plate is integrally brazed.

[0010] Furthermore, the plate body is provided with a plate body side flange on the side connected to the longitudinal beam. Bolts pass through the corresponding connection holes on the plate body side flange and the longitudinal beam, and are screwed into the pre-embedded screw seats to achieve a tight connection between the plate body and the longitudinal beam.

[0011] Furthermore, at least two plates are connected to at least one longitudinal beam to form a prefabricated module; when the plates of two adjacent prefabricated modules are connected, the upper and lower panels of the first plate extend into bent flanges towards the second plate; the upper and lower panels of the second plate extend into bent edges, which are fixed to the frame of the second plate by bolts that pass obliquely or horizontally through the flanges of the first plate and the bent edges of the second plate.

[0012] Furthermore, the front and rear faces of the plate are provided with plate end flanges for threaded connection with other plates; the end faces of the longitudinal beams are provided with longitudinal beam end flanges for threaded connection with other longitudinal beams; and the bottom surface of the longitudinal beams is provided with threaded seats.

[0013] Furthermore, at least two slabs are connected to at least one longitudinal beam to form a prefabricated module, and several prefabricated modules are spliced ​​together to form the main structure of the bridge or building. The main structure includes multiple main units. At the positions corresponding to the piers or support columns, adjacent main units are connected by cap beams, and the bottom surface of the cap beams is connected to the piers or support columns.

[0014] Furthermore, the cap beam includes a longitudinal cap beam plate, a top cap beam plate, an end cap beam plate, side cap beam plates, and a bottom cap beam plate. Multiple longitudinal cap beam plates are arranged along the length of the cap beam. The longitudinal cap beam plates located at the two edges are connected to the end cap beam plate on one side and to the top cap beam plate on the other side, with the longitudinal cap beam plates sandwiched between the end cap beam plate and the top cap beam plate. The longitudinal cap beam plate located in the middle is connected to the top cap beam plate on both sides. Side cap beam plates are provided between adjacent longitudinal cap beam plates, and a bottom cap beam plate is provided on the bottom surface, so that two adjacent longitudinal cap beam plates, together with the top cap beam plate, the bottom cap beam plate, and the two side cap beam plates, together form a closed box structure.

[0015] Furthermore, the cap beam is sandwiched between adjacent main units, and the cap beam is threadedly connected to the longitudinal beam of the main unit through the cap beam longitudinal plate, and threadedly connected to the plate of the main unit through the cap beam top plate and cap beam end plate.

[0016] The beneficial effects of this invention are: (1) The longitudinal beam is sandwiched between two plates (such as floor slabs and road slabs) and screwed in. Compared with hinges and welding, there are no gaps, which can realize continuous force transmission. That is, the load can be transmitted evenly and continuously through the contact surface, avoiding the local stress concentration phenomenon caused by hinges and welding, significantly improving the fatigue resistance of the structure under repeated loads, and greatly improving stiffness and stability. (2) By setting connecting bars, the plates on both sides of the longitudinal beam (such as floor slabs and road slabs) can achieve continuous force transmission through bolts and connecting bars, which can effectively coordinate the force on both sides, reduce local deformation, and significantly enhance the overall stiffness and torsional performance of the longitudinal beam under complex loads. (3) By adopting the overall brazing method, the plate is formed in the factory, the component has good integrity, small deformation and accurate size, and the on-site installation is completed only by bolts, without relying on the weld for stress. Therefore, the installation is fast and the quality is reliable, which significantly improves the construction efficiency and connection performance. (4) By placing the cap beam between adjacent main units instead of on the bottom of the main unit, the overall structure and spatial stiffness can be greatly improved, the load is distributed more evenly in the lateral direction, and stress concentration in a local area of ​​a single unit is effectively avoided, resulting in more uniform stress distribution. (5) The cap beam is formed by splicing multiple core plates. It has a simple structure, light weight, high transportation efficiency, and greatly simplifies the on-site installation process, effectively improving the overall assembly speed and reducing long-term maintenance costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the main superstructure of the bridge according to Embodiment 1 of the present invention; Figure 2 This is a sectional view of the main superstructure of the bridge in Embodiment 1 of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of the T-shaped prefabricated module according to Embodiment 1 of the present invention; Figure 4 yes Figure 2 An enlarged schematic diagram of part I of Embodiment 1 is shown; Figure 5 yes Figure 2 An enlarged schematic diagram of Part II of Embodiment 1 shown; Figure 6 This is a schematic diagram of the structure of the cover beam between adjacent main units in Embodiment 2 of the present invention; Figure 7 This is a three-dimensional structural schematic diagram of the cap beam in Embodiment 2 of the present invention; Figure 8 yes Figure 7 The cross-sectional view of the cap beam in Embodiment 2 is shown; Figure 9 yes Figure 8 The AA-direction cross-sectional view of Embodiment 2 is shown.

[0018] Explanation of reference numerals in the attached diagram: 1. Longitudinal beams; 2. Road slabs; 3. Core panels; 4. Guardrails; 5. Linkage assemblies; 6. Support assemblies; 7. Cap beams; 11. Screw seat; 12. Connecting rib; 13. Longitudinal beam end flange; 21. Road slab side flange; 22. Road slab end flange; 31. Top panel; 32. Bottom panel; 33. Sandwich layer; 34. Frame; 35. Flanged edge; 36. Bending edge; 71. Cap beam longitudinal plate; 72. Cap beam top plate; 73. Cap beam end plate; 74. Cap beam side plate; 75. Cap beam bottom plate; 76. Connecting part. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example 1

[0020] like Figures 1-3 The diagram illustrates a precast beam-slab connection structure for continuous force transmission, comprising two slabs and a longitudinal beam 1 sandwiched between them. The longitudinal beam 1 is bolted to the two slabs. It is understood that when this structure is used in the construction field, the slabs are floor slabs; when used in bridges, the slabs are road slabs 2. This embodiment uses a bridge as an example for illustration.

[0021] In this embodiment, both the longitudinal beam 1 and the road slab 2 are prefabricated structures. The road slab 2 and the longitudinal beam 1 are preferably designed as core panels 3, which are made of steel, such as stainless steel. The core panel includes an upper panel 31, a lower panel 32, a sandwich layer 33 disposed between the two, and a frame 34 disposed around the sandwich layer. The sandwich layer 33 can be a hollow tube array, a honeycomb layer, or a corrugated layer, etc. In this embodiment, the sandwich layer 33 is preferably a hollow tube array, that is, a number of hollow tubes are arranged at intervals between the upper panel 31 and the lower panel 32. The upper and lower ends of the hollow tubes are flanged, and the hollow tubes are brazed to the upper and lower panels through the flanges at both ends. The frame 34 is also brazed to the upper and lower panels.

[0022] In this embodiment, two road slabs 2 are connected to the longitudinal beam 1 to form a T-shaped prefabricated module 4. The road slab 2 has a road slab side flange 21 on the side connecting to the longitudinal beam 1, which extends upwards and downwards along the slab surface. Several connection holes are opened on the flange extension section; correspondingly, a series of connection holes are also prefabricated along the length of the longitudinal beam sidewall, and bolt seats 11 are pre-embedded in the holes. During installation, bolts are passed through the corresponding connection holes on the road slab side flange 21 and the longitudinal beam 1, and screwed into the pre-embedded bolt seats 11 to secure the two together.

[0023] More preferably, such as Figure 4As shown: Within the sandwich cavity of the longitudinal beam 1, threaded seats 11 are arranged at intervals along the length of the longitudinal beam. On the two inner sides of the longitudinal beam 1, at least a portion of the threaded seats in opposite positions are provided with connecting ribs 12. The connecting ribs 12 have grooves at both ends, into which the threaded seats 11 are embedded and fitted, allowing the connecting ribs 12 to clamp the threaded seats 11. By providing connecting ribs 12, the continuous transfer of force between the road slabs 2 on both sides of the longitudinal beam 1 is achieved through bolts and connecting ribs 12. This effectively coordinates the forces on both sides, reduces local deformation, significantly enhances the overall stiffness and torsional resistance of the longitudinal beam 1 under complex loads, and avoids excessive stress concentration on a single threaded seat or connection point, thereby reducing fatigue risk and improving structural durability. Simultaneously, when the bolts are tightened, the connecting ribs help balance the tensile and compressive forces on both sides, ensuring uniform stress at the nodes and reducing the possibility of loosening or damage due to excessive force on one side.

[0024] In this embodiment, the first side of the road panel 2 is bolted to the longitudinal beam 1 via the road panel side flange 21, and the second side is bolted to the road panel of another T-shaped prefabricated module. Specifically, when connecting the road panels 2 of two adjacent T-shaped prefabricated modules, the connection structure of the adjacent road panels is as follows: Figure 5 As shown: The upper panel 31 and lower panel 32 of one path plate (hereinafter referred to as the first path plate) both extend integrally formed flanges 35 towards another path plate (hereinafter referred to as the second path plate). The flanges 35 extend along the length of the path plate 2; preferably, the flanges 35 are L-shaped; the vertical section of the flanges 35 extends obliquely from the upper / lower panel of the first path plate, and the horizontal section of the flanges 35 is parallel to the bending edges 36 provided on the corresponding upper / lower panels of the second path plate. That is, the upper panel 31 of the second path plate is bent downwards, and the lower panel 32 is bent upwards to form an interlocking shape. The frame 34 on this side is installed in the inner space formed by the bent panels, and the upper and lower parts of the frame 34 are also designed as bent structures, so as to be parallel to the bending edges 36 of the upper panel 31 and the lower panel 32. The frame 34 is connected to the upper and lower panels by brazing. The frame of the second path plate is thickened at the position corresponding to the bending edge 36 and has pre-set threaded holes or screw seats. Simultaneously, the horizontal section of the L-shaped flange 35 of the first road slab was also locally thickened, making its thickness greater than that of the vertical section. Finally, by sequentially inserting bolts at an angle through the thickened horizontal section and the bent edge 36 of the second road slab, and screwing them into the threaded structure of the frame 34 of the second road slab, the road slabs 2 of the adjacent T-shaped prefabricated modules were fixed. The advantage of this design is that its connection relies entirely on bolts, eliminating the need for welding. By bending and thickening the edges of the road slabs, the contact area of ​​the bolts is effectively increased, making the load transfer between adjacent road slabs more reliable; and by inserting the bolts at an angle, the shear resistance and overall stability of the joint are significantly enhanced.

[0025] Understandably, the flanges extending from the upper and lower panels of the first and second guide plates can be formed by bending the horizontal panels vertically upwards or downwards. During installation, bolts are passed horizontally through the flanges of the first and second guide plates in sequence, and screwed into the threaded structure of the second guide plate's frame to secure the two.

[0026] In this embodiment, after the first and second road plates are bolted together by the flanged and bent edges, a reinforcing member is provided in the cavity formed by the flanged and bent edges to improve the connection strength between the two. Preferably, the reinforcing member is pre-brazed between the upper and lower flanges 35 of the first road plate.

[0027] In this embodiment, the front and rear faces of the road slab 2 are also provided with road slab end flanges 22 for connecting with the road slabs of other T-shaped prefabricated modules. Specifically, along the length of the road slab of the T-shaped prefabricated module, one side is bolted to the longitudinal beam 1 via the road slab side flange 21, and the other side is bolted to the road slab of another adjacent T-shaped prefabricated module via a flanged / bent edge. Along the width of the road slab, it is bolted to the road slabs of other T-shaped prefabricated modules via the road slab end flanges 22. For T-shaped prefabricated modules located at the edges, the road slab 2 at the edge is bolted to the guardrail 4. For example, the upper and lower panels of the road slab 2 located at the edge are provided with the aforementioned bent edge 36, which has threaded holes and is bolted to the guardrail 4 to form a single unit.

[0028] In this embodiment, the end face of the longitudinal beam 1 is provided with a longitudinal beam end flange 13, which is used to bolt and fix it to the longitudinal beams of other T-shaped prefabricated modules.

[0029] It is understood that in this embodiment, both the road panel 2 and the longitudinal beam 1 are formed by brazing. That is, the upper panel 31, lower panel 32, sandwich layer 33, and frame 34 constituting the road panel and longitudinal beam are all brazed together. The longitudinal beam end flange 13, road panel end flange 22, and road panel side flange 21 can be pre-welded to the road panel or longitudinal beam, or integrally formed with the road panel and longitudinal beam, or brazed together with the road panel and longitudinal beam. In this embodiment, no electric welding is required throughout the process; only brazing and bolt connections are used. Moreover, the overall force does not depend on brazing. Brazing merely forms the road panel and longitudinal beam into a single unit, while the force is continuously transmitted through the bolts. Compared with hinges and welding, the fundamental advantage of the connection method between the road panel and longitudinal beam in this embodiment is that it does not rely on welds as the load-bearing connection. Relying on welding not only makes it difficult to completely avoid process defects and increases labor costs, but also causes the flatness and dimensional accuracy of the components to decrease due to welding thermal deformation, thus causing difficulties in on-site installation. This solution employs a prefabrication method using integral brazing, completing the panel formation in the factory. This results in components with good integrity, minimal deformation, and precise dimensions. On-site installation is accomplished solely with bolts, eliminating the need for weld seams to bear loads. Consequently, installation is rapid and reliable, significantly improving construction efficiency and connection performance.

[0030] In this embodiment, during on-site assembly, adjacent T-shaped prefabricated modules are bolted together to form the superstructure of the bridge, and the road slabs 2 are spliced ​​together to form the road slabs of the bridge. Guardrails 4 are installed on both sides of the superstructure of the bridge; connecting rod groups 5 are provided between the longitudinal beams of adjacent T-shaped prefabricated modules. That is, several connecting rods can be spaced apart along the length of the longitudinal beams of each adjacent T-shaped prefabricated module, and the connecting rods are connected to the middle or lower part of the adjacent longitudinal beams 1. By setting the connecting rod groups 5, the connection strength between adjacent T-shaped prefabricated modules can be improved, and the materials used can be reduced, lowering costs and reducing weight. In addition, a strut group 6 is provided between the longitudinal beam 1 of the T-shaped prefabricated module located at the edge of the bridge and the guardrail 4 to improve the support strength. This embodiment, by splicing several standardized T-shaped prefabricated modules to form the superstructure of the bridge, can greatly improve transportation efficiency and assembly speed, and makes the maintenance and dismantling of the bridge more flexible, reducing the difficulties of traditional bridge demolition and lowering the later maintenance costs.

[0031] In this embodiment, all longitudinal beams 1 have pre-installed screw seats on their bottom surfaces, which can be used to suspend light rails or other devices in the future, such as vehicles, construction tools, etc. Example 2

[0032] like Figure 6 As shown: Based on Embodiment 1, the superstructure is further provided with cap beams 7 at the locations where they connect to the piers. The superstructure of this embodiment includes multiple main units, each of which is composed of multiple T-shaped prefabricated modules spliced ​​together along the transverse and longitudinal directions of the bridge. At the locations corresponding to the piers, adjacent main units are connected by cap beams 7, and the bottom surface of the cap beams 7 is connected to the piers.

[0033] Specifically, such as Figures 7-9 As shown: The cap beam 7 includes cap beam longitudinal plates 71, cap beam top plates 72, cap beam end plates 73, cap beam side plates 74, and cap beam bottom plates 75. Multiple cap beam longitudinal plates 71 are arranged along the length of the cap beam 7. The cap beam longitudinal plates 71 located at the two edges are connected to the cap beam end plates 73 on one side and to the cap beam top plates 72 on the other side, with the longitudinal plates 71 sandwiched between the cap beam end plates 73 and the cap beam top plates 72. The cap beam longitudinal plates 71 located in the middle are connected to the cap beam top plates 72 on both sides, and the length of the cap beam top plates 72 is greater than that of the cap beam end plates 73. Cap beam side plates 74 are provided between adjacent cap beam longitudinal plates 71, and a cap beam bottom plate 75 is provided on the bottom surface, so that two adjacent cap beam longitudinal plates 71, the cap beam top plates 72, the cap beam bottom plates 75, and the two cap beam side plates 74 together form a closed box structure.

[0034] Preferably, the longitudinal plate 71, the top plate 72, the end plate 73, the side plate 74, and the bottom plate 75 of the cap beam are all core plates.

[0035] More preferably, the structure of the longitudinal plate 71 of the cap beam can be the same as the structure of the aforementioned longitudinal beam 1, and the structure of the top plate 71 and the end plate 73 of the cap beam can be the same as the structure of the aforementioned road slab 2. When connecting the cap beam 7 to the adjacent main unit, it is only necessary to bolt the longitudinal plate 71 of the cap beam to the longitudinal beam 1 of the main unit through flanges, and bolt the top plate 72 and the end plate 73 of the cap beam to the road slab 2 of the main unit through flanges.

[0036] More preferably, the cap beam has three longitudinal plates 71, two end plates 73, two top plates 72, four side plates 74, and one or two bottom plates 75. It is understood that the cap beam dimensions in this embodiment can be designed to meet container transport standards, allowing for overall transport and direct connection to the main unit upon arrival at the site. Alternatively, all the longitudinal plates, top plates, side plates, and bottom plates can be combined to form a container structure for transport, meeting container dimensions, with the end plates and other components then installed on-site. In short, the cap beam in this embodiment can be transported and assembled using different assembly methods.

[0037] In this embodiment, a diagonal brace connects the bottom surface of the cap beam end plate 73 to the side surface of the cap beam longitudinal plate 71. A connecting part 76 for connecting with the bridge pier is provided in the middle of the bottom surface of the cap beam bottom plate 75.

[0038] In summary, by placing the cap beam 7 between adjacent main units rather than on the bottom surface of the main units, this embodiment can greatly improve the overall structure and spatial stiffness, make the lateral load distribution more uniform, and effectively avoid stress concentration in local areas of a single unit, resulting in more uniform stress distribution. The cap beam is formed by splicing multiple core plates, which is simple in structure, lightweight, and has high transportation efficiency. The on-site installation process is greatly simplified, effectively improving the overall assembly speed and reducing long-term maintenance costs. Example 3

[0039] The difference from Embodiment 1 is that the precast beam-slab connection structure in this embodiment can be used not only for bridges but also for buildings such as houses and factories. For example, a road slab can be converted into a floor slab, and two floor slabs and longitudinal beams can form a T-shaped precast module, with the connection structure being the same as in Embodiment 1.

[0040] For example, several T-shaped prefabricated modules are spliced ​​together to form a single-story main structure of the factory building. When the factory building involves multiple floors, the upper and lower main structures can be connected as a whole by several support columns, and cap beams are also set at the positions corresponding to the support columns. The structure is the same as in Example 2, and will not be described in detail here. The support columns are connected between the cap beams of the upper and lower main structures.

[0041] In summary, this invention, by clamping the longitudinal beam between two plates (such as floor slabs or road slabs) and fixing them with bolts, achieves continuous force transmission without any gaps compared to hinges and welding. This means the load can be transmitted evenly and continuously through the contact surface, avoiding the localized stress concentration caused by hinges and welding. This significantly improves the fatigue resistance of the structure under repeated loading, greatly enhancing its stiffness and stability. By incorporating connecting ribs, the continuous force transmission between the road slabs on both sides of the longitudinal beam is achieved through bolts and connecting ribs, effectively coordinating the forces on both sides, reducing localized deformation, and significantly enhancing the overall stiffness and torsional resistance of the longitudinal beam under complex loads. Furthermore, the use of integral brazing... The process involves prefabricating the panels in the factory, resulting in excellent overall integrity, minimal deformation, and precise dimensions. On-site installation is accomplished solely with bolts, eliminating the need for welds to bear the load, thus ensuring rapid and reliable installation and significantly improving construction efficiency and connection performance. By placing the cap beam between adjacent main units rather than on the bottom surface of the main units, the overall structural integrity and spatial stiffness are greatly enhanced, resulting in a more uniform lateral load distribution and effectively preventing stress concentration in localized areas of a single unit, leading to more even stress distribution. The cap beam is formed by splicing multiple core plates, resulting in a simple structure, light weight, and high transportation efficiency. The on-site installation process is significantly simplified, effectively increasing the overall assembly speed and reducing long-term maintenance costs.

[0042] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A continuous force-transferring precast beam-slab connection structure, characterized by, The application relates to a prefabricated module for bridge or building, which comprises at least two parallel arranged plate bodies and at least one longitudinal beam, the longitudinal beam is clamped between the two plate bodies, and the two side walls of the longitudinal beam are attached to the plate bodies and fixed by bolts.

2. The continuous force-transferring precast beam-slab connection structure according to claim 1, wherein, The side walls of the longitudinal beam are preformed with a plurality of connecting holes along the length direction, and the holes are pre-buried with screw seats.

3. The continuous force-transferring precast beam-slab connection structure according to claim 2, wherein, At least a part of the inner cavity of the longitudinal beam is provided with connecting ribs between the opposite screw seats.

4. The continuous force-transferring precast beam-slab connection structure according to claim 1 or 2 or 3, wherein, The longitudinal beam and the plate body are both core plates, the core plate comprises an upper plate, a lower plate, a sandwich layer arranged between the two plates, and a frame arranged around the sandwich layer, and the core plate is integrally made by brazing.

5. The continuous force-transferring precast beam-slab connection structure according to claim 2 or 3, wherein, The plate body is provided with a plate body side flange on the side connected with the longitudinal beam, the bolt passes through the plate body side flange and the corresponding connecting hole of the longitudinal beam, and is screwed into the pre-buried screw seat to realize the close connection between the plate body and the longitudinal beam.

6. The continuous force-transferring precast beam-slab connection structure according to claim 4, wherein, At least two plate bodies and at least one longitudinal beam are connected to form a prefabricated module; when the plate bodies of two adjacent prefabricated modules are connected, the upper plate and the lower plate of the first plate body are both extended to the direction of the second plate body to form bent flanges; the upper plate and the lower plate of the second plate body are extended to form bent edges, and the bolt is fixed to the frame of the second plate body by being obliquely or horizontally passing through the flange of the first plate body and the bent edge of the second plate body.

7. The continuous force-transferring precast beam-slab connection structure according to claim 1 or 2 or 3, wherein The front end face and the rear end face of the plate body are provided with plate body end flanges for threadedly connecting with other plate bodies; the end face of the longitudinal beam is provided with longitudinal beam end flanges for threadedly connecting with other longitudinal beams; and the bottom face of the longitudinal beam is pre-buried with screw seats.

8. The continuous force-transferring precast beam-slab connection structure according to claim 1 or 2 or 3, wherein, At least two plate bodies and at least one longitudinal beam are connected to form a prefabricated module, a plurality of prefabricated modules are spliced to form the main structure of a bridge or a building, the main structure comprises a plurality of main units, cover beams are arranged between adjacent main units at positions corresponding to bridge piers or supporting columns, and the bottom face of the cover beam is connected with the bridge pier or the supporting column.

9. The continuous force-transferring precast beam-slab connection of claim 8, wherein, The cover beam comprises cover beam longitudinal plates, a cover beam top plate, cover beam end plates, cover beam side plates and a cover beam bottom plate; the cover beam longitudinal plates are arranged along the length direction of the cover beam, the cover beam longitudinal plates located at the two side edges are connected with the cover beam end plates on one side and connected with the cover beam top plate on the other side, and the cover beam longitudinal plates are clamped between the cover beam end plates and the cover beam top plate; the cover beam longitudinal plates located at the middle are connected with the cover beam top plate on both sides; the cover beam side plates are arranged between adjacent cover beam longitudinal plates, and the cover beam bottom plate is arranged at the bottom face, so that the two cover beam longitudinal plates, the cover beam top plate, the cover beam bottom plate and the two cover beam side plates together form a closed box structure.

10. The continuous force-transferring precast beam-slab connection structure according to claim 9, wherein, The cover beam is clamped between adjacent main units, the cover beam is threadedly connected with the longitudinal beam of the main unit through the cover beam longitudinal plates, and the cover beam is threadedly connected with the plate body of the main unit through the cover beam top plate and the cover beam end plate.

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