Prefabricated reinforced concrete through-type shear nail groove bridge deck slab and steel-concrete composite structure

Abstract

The invention relates to the technical field of steel-concrete composite beams, in particular to a prefabricated reinforced concrete through-type shear nail groove bridge deck slab and a steel-concrete composite structure.The prefabricated reinforced concrete through-type shear nail groove bridge deck slab comprises a first deck slab, a first longitudinal connecting groove is formed in the first deck slab and penetrates through the first deck slab, and a second longitudinal connecting groove is formed in the second deck slab and penetrates through the first longitudinal connecting groove; first longitudinal connecting grooves are formed in the first face plate and divide the first face plate into a plurality of first face plate units, a plurality of penetrating reinforcing steel bars are embedded in the first face plate, the first face plate units are connected through the penetrating reinforcing steel bars, and the first longitudinal connecting grooves are used for being matched with shearing force connecting pieces arranged on a steel structure in a strip mode. And the first panel and the steel structure are connected into a whole. The stress at the joint of the bridge deck slab and the steel beam is uniformly distributed, and the assembly precision requirement is low.

Description

Technical Field

[0001] The invention relates to the technical field of steel-concrete composite beams, and in particular to a prefabricated reinforced concrete through-type shear nail groove bridge deck and a steel-concrete composite structure. Background Art

[0002] Steel-concrete composite beams are generally composed of concrete bridge decks, steel beams and shear connectors. The concrete bridge decks and steel beams are connected by shear connectors to ensure the joint action of the two. Steel-concrete composite beams make full use of the compressive properties of concrete and the tensile properties of steel. Their combined effect exceeds the mechanical properties of the two materials individually. It is a new structural system with excellent performance, advanced technology, economic rationality, ease of use and great development prospects. It has been widely used.

[0003] In the early days, the composite beams used in engineering projects were mostly cast-in-place concrete slabs on steel beams, and the steel beams and concrete slabs worked effectively together with the help of shear connectors welded on the steel beams. In this form, the shear connectors can be evenly arranged along the longitudinal direction of the steel beams, and the shear force between the concrete slabs and the steel beams is evenly and smoothly transmitted. However, the cast-in-place bridge deck requires a large number of templates to be set up on the bridge, which requires a large amount of on-site work, a long construction period, and the construction quality is difficult to guarantee. In recent years, in order to solve the defects of the above-mentioned cast-in-place composite beams, more and more projects have adopted prefabricated steel-concrete composite beams, that is, the steel beams and concrete slab components are prefabricated in the factory and assembled on site at the bridge. The use of prefabricated composite beams can be factory-produced, speed up the construction progress, ensure the construction quality, and at the same time reduce a lot of environmental pollution caused during the construction process. It is suitable for standardized construction and conforms to the development trend of assembly and green construction.

[0004] like Figure 1 As shown, the existing bridge deck 8 is generally a prefabricated reinforced concrete slab with a plurality of notches 81 and a plurality of lifting holes 82, such as Figure 2 As shown, the top surface of the upper flange of the longitudinal steel beam 3 is fixedly provided with clustered shear nails 9, and the clustered shear nails 9 are arranged at intervals along the length direction of the longitudinal steel beam 3, and the clustered shear nails 9 correspond to the notches 81 one by one, as shown in FIG. Figure 3 As shown, the notch 81 of the prefabricated reinforced concrete slab is aligned with the clustered shear nails 9 and then placed on the longitudinal steel beam 3 and concrete is poured into the notch 81 to fix it. However, when the above structure is adopted, there is no shear connector 4 between the concrete structure and the steel beam between the two notches 81, and grouting or grouting is required to ensure effective contact and force transmission and prevent water vapor from entering and corroding, which makes the construction relatively difficult. In addition, in order to meet the shear resistance requirements, more and denser shear nails are often concentrated in the notch 81, which easily causes interference between the shear nails and the steel bars in the notch 81 during assembly construction, and it is difficult to vibrate the poured concrete in the notch 81, making it difficult to ensure its pouring quality. Summary of the invention

[0005] The purpose of the present invention is to address the defects of the prior art and provide a prefabricated reinforced concrete through-type shear nail groove bridge deck and a steel-concrete composite structure, in which the stress distribution at the connection between the bridge deck and the steel beam is uniform and the assembly accuracy requirement is low.

[0006] In order to solve the above technical problems, in the first aspect, a prefabricated reinforced concrete through-type shear nail groove bridge panel comprises a first panel, a first longitudinal connecting groove is arranged on the first panel, the first longitudinal connecting groove runs through the first panel, the first longitudinal connecting groove divides the first panel into a plurality of first panel units, a plurality of through steel bars are embedded in the first panel, the plurality of first panel units are connected by the through steel bars, and the first longitudinal connecting groove is used to cooperate with the shear connectors arranged in strips on the steel structure, so that the first panel is connected to the steel structure as a whole.

[0007] In some embodiments, a second panel is included, a second longitudinal connecting groove and a second transverse connecting groove are provided on the second panel, the second transverse connecting groove is perpendicular to the second longitudinal connecting groove, the second longitudinal connecting groove passes through the second panel, the second longitudinal connecting groove and the second transverse connecting groove divide the second panel into a plurality of second panel units, a plurality of through steel bars are embedded in the second panel, and the plurality of second panel units are connected by the through steel bars, and the second longitudinal connecting groove and the second transverse connecting groove are both used to cooperate with the shear connectors arranged in strips on the steel structure, so that the second panel is connected to the steel structure as a whole.

[0008] In some embodiments, a lifting steel bar is arranged in the first longitudinal connection groove, the lifting steel bar is fixedly connected to the through steel bar, both ends of the lifting steel bar are anchored in the first panel unit, and the lifting steel bar is used for lifting the first panel.

[0009] Furthermore, the first panel is provided with a plurality of lifting points, two lifting steel bars are arranged at each lifting point, and the two lifting steel bars are respectively fixed on both sides of the through steel bar.

[0010] Preferably, the two hoisting steel bars are arranged in an X-shape, or the two hoisting steel bars are both in an inverted V-shaped structure.

[0011] Furthermore, the two hoisting steel bars are arranged in an X-shape, and the included angle between the two hoisting steel bars is between 30° and 60°.

[0012] Furthermore, the cross-sectional area of ​​the hoisted steel bars meets the following conditions:

[0013]

[0014] Among them, A s is the cross-sectional area of ​​a single hoisting steel bar, in mm 2, the allowable stress of the steel bar is σ=110MPa, the overall lifting weight of the first panel is G, the unit is KN, and the angle between the lifting steel bar and the penetrating steel bar is θ.

[0015] In some embodiments, the through-steel bars include longitudinal through-steel bars and transverse through-steel bars, the longitudinal through-steel bars are parallel to the first longitudinal connecting grooves, and the first longitudinal connecting grooves are parallel to the width direction of the first panel.

[0016] Furthermore, a reinforcing steel bar is arranged in the first longitudinal connection groove, the reinforcing steel bar is fixedly arranged on the transverse penetrating steel bar, and both ends of the reinforcing steel bar are anchored into the first panel unit.

[0017] In a second aspect, the present invention provides a steel-concrete composite structure, comprising a plurality of parallel longitudinal steel beams, the longitudinal steel beams being arranged along the direction of the bridge, shear connectors being arranged along the upper surfaces of the longitudinal steel beams, the first panel being arranged on the plurality of longitudinal steel beams, the shear connectors on the longitudinal steel beams being inserted into first longitudinal connecting grooves of the first panel, and being connected to the first panel through cast-in-place concrete in the first longitudinal connecting grooves.

[0018] In a third aspect, the present invention provides a steel-concrete composite structure, comprising a plurality of longitudinal steel beams arranged in parallel, and transverse steel beams arranged perpendicular to the longitudinal steel beams, wherein shear connectors are arranged on the upper surfaces of the longitudinal steel beams and the transverse steel beams throughout their length, wherein the shear connectors on the longitudinal steel beams are inserted into the first longitudinal connecting grooves of the first panel and are connected to the first panel through the cast-in-place concrete in the first longitudinal connecting grooves, and the shear connectors on the longitudinal steel beams and the transverse steel beams are respectively inserted into the second longitudinal connecting grooves and the second transverse connecting grooves of the second panel and are connected to the second panel through the cast-in-place concrete in the second longitudinal connecting grooves and the second transverse connecting grooves.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention provides a through first longitudinal connecting groove on the first panel, and the first longitudinal connecting groove can cooperate with the shear connectors arranged in strips on the steel structure, so as to connect the first panel to the steel structure. Compared with the shear connectors arranged in a cluster in the prior art, the first panel is connected to the steel structure through the shear connectors arranged in strips, which can avoid the stress concentration phenomenon at the connection between the first panel and the shear connector, and the shear force transmission at the connection is more uniform and smooth. In addition, since the cluster arrangement is changed to a strip arrangement, the arrangement spacing of the shear connectors can be increased. In the process of inserting the shear connector into the first panel, the interference of the through steel bars on the shear connector can be reduced, and the influence of the shear connector on the subsequent cast-in-place concrete vibration can be reduced, thereby ensuring the casting quality. In addition, since the volume of the first longitudinal connecting groove is larger than that of the cluster groove, the weight of the first panel is reduced, the volume of precast concrete is reduced, and the hoisting weight is reduced. Under the same equipment hoisting capacity, the number of precast panel blocks can be effectively reduced.

[0021] 2. For the continuous beam provided with transverse steel beams, the present invention can simultaneously connect the transverse steel beams and the longitudinal steel beams at the positions where the transverse steel beams are arranged through the second panel provided with the second longitudinal connecting grooves and the second transverse connecting grooves, and the remaining positions can be connected with the longitudinal steel beams through the first panel, so as to finally form a bridge deck.

[0022] 3. The present invention sets the lifting points of the panel on the steel bars by setting lifting steel bars on the penetrating steel bars. Compared with the prior art of opening holes on the bridge panel as lifting holes, the present invention can avoid defects such as potholes and water leakage caused by the lifting holes, and can cancel the subsequent processing procedures for the lifting holes, thereby simplifying the construction.

[0023] 4. The present invention reinforces the through-steel bars by arranging reinforcing steel bars, thereby preventing the through-steel bars at the first longitudinal connecting groove from being deformed during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a bridge deck in the prior art;

[0025] Figure 2 It is a structural schematic diagram of a longitudinal steel beam in the prior art;

[0026] Figure 3 It is a structural schematic diagram of the bridge deck after being assembled to the longitudinal steel beam in the prior art;

[0027] Figure 4 is a schematic structural diagram of the first panel in the present invention;

[0028] Figure 5 for Figure 4 Middle AA section view;

[0029] Figure 6 for Figure 5 Top view from the perspective of medium BB;

[0030] Figure 7 It is a structural schematic diagram of the longitudinal steel beam of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure after the first panel of the present invention is assembled to the longitudinal steel beam;

[0032] Fig. 9 This is a schematic diagram of the structure of the first panel of the present invention after assembly;

[0033] Fig.10 It is a cross-sectional view of the first panel of the present invention after assembly;

[0034] Fig.11 The schematic diagram of the continuous beam structure of the present invention includes a longitudinal steel beam and a transverse steel beam;

[0035] Fig.12 is a top view of the second panel of the present invention;

[0036] Fig.13 This is a schematic diagram of the structure after the first panel and the second panel of the present invention are assembled;

[0037] Fig.14 A schematic structural diagram of a second panel provided with a second transverse connecting groove in accordance with the present invention;

[0038] Fig.15 A schematic structural diagram of a second panel having a second transverse connecting groove for passing a pipe according to the present invention.

[0039] Reference numerals:

[0040] First panel 1; first panel unit 11; first longitudinal connection groove 12; longitudinal through steel bar 13; transverse through steel bar 14; hanging steel bar 15; reinforcing steel bar 16;

[0041] Second panel 2; second longitudinal connecting groove 21; second transverse connecting groove 22;

[0042] Longitudinal steel beam 3; shear connector 4; transverse steel beam 5; wet joint 6; cast-in-place concrete 7; existing bridge deck 8; notch 81; lifting hole 82; clustered shear nails 9; rubber pad 10. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] like Figure 4As shown, the present invention discloses a prefabricated reinforced concrete through-type shear nail groove bridge deck, comprising a first panel 1, two first longitudinal connecting grooves 12 are provided on the first panel 1, the first longitudinal connecting grooves 12 are parallel to the width direction of the first panel 1, the first longitudinal connecting grooves 12 penetrate the first panel 1, the two first longitudinal connecting grooves 12 divide the first panel 1 into three first panel units 11, a plurality of through steel bars are embedded in the first panel 1, the three first panel units 11 are connected by through steel bars, and the first longitudinal connecting grooves 12 are used to cooperate with the shear connectors 4 arranged in strips on the steel structure, so that the first panel 1 is connected to the steel structure as a whole. Among them, the shear connector 4 adopts a shear nail structure.

[0045] It can be understood that the present invention opens a through first longitudinal connecting groove 12 on the first panel 1, and the first panel units 11 divided by the first longitudinal connecting groove 12 are connected as a whole by penetrating steel bars. After the first panel 1 is prefabricated, the first longitudinal connecting groove 12 is matched with the shear connector 4 arranged in strips on the steel structure to connect the first panel 1 to the steel structure. The connection range of the first panel 1 and the steel structure is the entire length along the width direction of the first panel 1. The shear force transmission at the connection between the first panel 1 and the steel structure is more uniform and smooth, which can avoid the stress concentration phenomenon at the connection between the first panel 1 and the shear connector 4, and there is no need to mortar or grout between the first panel 1 and the steel structure; because the connection range of the first panel 1 and the steel structure becomes larger, the shear connector 4 is arranged at a larger interval to meet the connection strength requirements of the first panel 1 and the steel structure, so that in the process of inserting the shear connector 4 into the first panel 1, the interference of the penetrating steel bars on the shear connector 4 can be reduced, and the influence of the shear connector 4 on the subsequent vibration of the cast-in-place concrete 7 can be reduced, thereby ensuring the pouring quality.

[0046] In addition, since the volume of the first longitudinal connecting groove 12 is larger than that of the clustered groove, the weight of the first panel 1 is reduced, the volume of precast concrete is reduced, and the lifting weight is reduced. Under the same equipment lifting capacity, the number of precast panel blocks can be effectively reduced.

[0047] In some embodiments, Figure 5 As shown, a hoisting steel bar 15 is arranged in the first longitudinal connecting groove 12 , and the hoisting steel bar 15 is fixedly connected to the through steel bar by welding. Both ends of the hoisting steel bar 15 are anchored in the first panel unit 11 , and the hoisting steel bar 15 is used for hoisting the first panel 1 .

[0048] It can be understood that by fixing the lifting steel bar 15 on the through-steel, anchoring the two ends of the lifting steel bar 15 into the first panel unit 11, the through-steel, the lifting steel bar 15, and the plurality of first panel units 11 are connected as one, so that the rigidity and strength of the through-steel where the lifting steel bar 15 is set are improved, and this place can be used as the lifting point of the first panel 1. Compared with the prior art, in which a hole is opened on the bridge deck as the lifting hole 82, the present invention can avoid pits, water leakage and other diseases caused by the lifting hole 82, and can cancel the subsequent processing process of the lifting hole 82, simplifying the construction.

[0049] Furthermore, the first panel 1 is provided with a plurality of lifting points, and two lifting steel bars 15 are arranged at each lifting point, and the two lifting steel bars 15 are respectively fixed on both sides of the through steel bar.

[0050] It is understandable that by fixing the lifting steel bars 15 on both sides of the through steel bars, the through steel bars and the two lifting steel bars 15 form a stable truss structure, which can be used for lifting the first panel 1 to ensure stability during the lifting process. It should be noted that, generally, four lifting points should be evenly set.

[0051] In some embodiments, the two lifting steel bars 15 are arranged in an X-shape, or the two lifting steel bars 15 are both in an inverted V-shape structure.

[0052] It should be noted that if Figure 4 , 5 As shown, the through-steel bars are generally arranged in two layers, close to the upper surface and the lower surface of the first panel 1 respectively, and the two layers of through-steel bars are connected as a whole at both ends. When the two lifting steel bars 15 are arranged in an X-shaped cross, one end of the lifting steel bar 15 is connected to the through-steel bar of the upper layer, and the other end of the lifting steel bar 15 is connected to the through-steel bar of the lower layer. When the two lifting steel bars 15 are both in an inverted V-shaped structure, both ends of the lifting steel bar 15 are connected to the through-steel bar of the lower layer, and the middle part of the lifting steel bar 15 is connected to the through-steel bar of the upper layer. The lifting steel bars 15 are in various forms, not limited to the two types listed above, and only need to meet the requirement that the forces on the lifting steel bars 15 and the through-steel bars are less than the allowable stress of the steel bars during lifting.

[0053] If the overall lifting weight of the first panel 1 is G, in KN, and there are four lifting points, the three most unfavorable lifting points are considered according to the specification, such as Figure 5 As shown, each lifting point shares G / 3, each lifting steel bar 15 shares G / 6, the tension of the lifting steel bar 15 is T, and the vertical component T1 of T must satisfy T1≥G / 6, then T=T1 / sinθ≥G / 6 / sinθ, and T=σ×A s =110×A s / 1000, σ is the allowable stress of the steel bar σ = 110MPa, so the cross-sectional area of ​​the hoisting steel bar 15 should meet the following conditions:

[0054]

[0055] Among them, A s is the cross-sectional area of ​​a single hoisting steel bar 15, in mm 2 , θ is the angle between the hoisting steel bar 15 and the penetrating steel bar.

[0056] Furthermore, the two hoisting steel bars 15 are arranged in an X-shape, and the angle between the hoisting steel bars 15 and the through steel bars is between 30° and 60°.

[0057] In some embodiments, Figure 6 As shown, a reinforcing steel bar 16 is arranged in the first longitudinal connection groove 12 . The reinforcing steel bar 16 is fixedly arranged on the through steel bar, and both ends of the reinforcing steel bar 16 are anchored into the first panel unit 11 .

[0058] In some embodiments, Figure 4 As shown, the through-steel bars include longitudinal through-steel bars 13 and transverse through-steel bars 14 . The longitudinal through-steel bars 13 are parallel to the first longitudinal connecting grooves 12 . The first longitudinal connecting grooves 12 are parallel to the width direction of the first panel 1 .

[0059] Furthermore, a reinforcing steel bar 16 is disposed in the first longitudinal connection groove 12 . The reinforcing steel bar 16 is fixedly disposed on the transverse penetrating steel bar 14 , and both ends of the reinforcing steel bar 16 are anchored into the first panel unit 11 .

[0060] It can be understood that since the first longitudinal connecting groove 12 divides the first panel 1 into three first panel units 11, during the lifting process, under the action of gravity of the first panel units 11 on both sides, the transverse through-steel bars 14 are subjected to a large bending moment at the first longitudinal connecting groove 12. In order to prevent the transverse through-steel bars 14 from deforming, reinforcing steel bars 16 can be welded on the transverse through-steel bars 14 to improve the stiffness of the transverse through-steel bars 14.

[0061] The first panel 1 can be applied to various scenes connected with steel structures, including buildings, roads and other fields. The present invention provides a steel-concrete composite structure, which is assembled using the first panel 1. Figure 7 As shown, the steel-concrete composite structure includes six parallel longitudinal steel beams 3, the longitudinal steel beams 3 are arranged along the bridge direction, the shear connectors 4 are arranged on the upper surface of the longitudinal steel beams 3, the first panel 1 is arranged on two longitudinal steel beams 3, the shear connectors 4 on the longitudinal steel beams 3 are inserted into the first longitudinal connection grooves 12 of the first panel 1, and are connected to the first panel 1 through the cast-in-place concrete 7 in the first longitudinal connection grooves 12, as shown in FIG. Figure 8 , 9 As shown, two adjacent panels are directly provided with a wet joint 6. Fig.10As shown, before placing the first panel 1 on the longitudinal steel beam 3, a rubber pad 10 should be fixedly arranged on the flange of the longitudinal steel beam 3 along the length direction.

[0062] like Fig.11 As shown, in the structure of the continuous beam bridge, the longitudinal steel beams 3 are connected by transverse steel beams 5, the transverse steel beams 5 are perpendicular to the longitudinal steel beams 3, and the transverse steel beams 5 are arranged along the transverse direction of the bridge. If the continuous beam bridge adopts the first panel 1, there is no shear connector 4 between the transverse steel beam 5 and the first panel 1.

[0063] like Fig.12 As shown, the present invention also provides a second panel 2, two second longitudinal connecting grooves 21 and one second transverse connecting groove 22 are provided on the second panel 2, the second transverse connecting groove 22 is perpendicular to the second longitudinal connecting groove 21, the second longitudinal connecting groove 21 is arranged along the bridge direction, the second transverse connecting groove 22 is arranged transversely to the bridge direction, the second longitudinal connecting groove 21 penetrates the second panel 2, the second longitudinal connecting groove 21 and the second transverse connecting groove 22 divide the second panel 2 into six second panel units, a plurality of through steel bars are embedded in the second panel 2, the six second panel units are connected by the through steel bars, the second longitudinal connecting groove 21 and the second transverse connecting groove 22 are both used to cooperate with the shear connectors 4 arranged in strips on the steel structure, so that the second panel 2 is connected to the steel structure as a whole.

[0064] like Fig.13 As shown, the present invention also provides another steel-concrete composite structure, including a plurality of longitudinal steel beams 3 arranged in parallel, and transverse steel beams 5 arranged perpendicular to the longitudinal steel beams 3, the upper surfaces of the longitudinal steel beams 3 and the transverse steel beams 5 are both arranged with shear connectors 4 throughout the length, the second panel 2 is fixed at the position where the transverse steel beams 5 are set, and the first panel 1 is fixed at other positions, that is, the shear connector 4 on the longitudinal steel beams 3 is inserted into the first longitudinal connecting groove 12 of the first panel 1, and is connected to the first panel 1 through the cast-in-place concrete 7 in the first longitudinal connecting groove 12, the shear connectors 4 on the longitudinal steel beams 3 and the transverse steel beams 5 are respectively inserted into the second longitudinal connecting groove 21 and the second transverse connecting groove 22 of the second panel 2, and are connected to the second panel 2 through the cast-in-place concrete 7 in the second longitudinal connecting groove 21 and the second transverse connecting groove 22.

[0065] It should be noted that both ends of the transverse steel beam 5 only extend to the longitudinal steel beam 3, so only one end of the second transverse connecting groove 22 on the second panel 2 on both sides of the transverse bridge passes through the second panel 2. Fig.14 As shown, the second transverse connecting groove 22 on the second panel 2 located in the middle should penetrate the second panel 2, as shown in FIG. Fig.15 As shown, Fig.12In the figure, only the second transverse connecting groove 22 is shown to penetrate the second panel 2. Two adjacent second panels 2 and the first panel 1 and the second panel 2 are also connected by wet joints 6 to form a complete bridge panel.

[0066] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A prefabricated reinforced concrete through-type shear nail groove bridge deck, characterized in that: The invention comprises a first panel (1), wherein a first longitudinal connecting groove (12) is provided on the first panel (1), the first longitudinal connecting groove (12) penetrates the first panel (1), the first longitudinal connecting groove (12) divides the first panel (1) into a plurality of first panel units (11), a plurality of through-steel bars are embedded in the first panel (1), the plurality of first panel units (11) are connected via the through-steel bars, and the first longitudinal connecting groove (12) is used to cooperate with a shear connector (4) arranged in strips on a steel structure, so that the first panel (1) is connected to the steel structure as a whole.

2. The prefabricated reinforced concrete through-type shear nail groove bridge deck according to claim 1 is characterized in that: The invention comprises a second panel (2), wherein a second longitudinal connecting groove (21) and a second transverse connecting groove (22) are provided on the second panel (2), wherein the second transverse connecting groove (22) is perpendicular to the second longitudinal connecting groove (21), and the second longitudinal connecting groove (21) penetrates the second panel (2), wherein the second longitudinal connecting groove (21) and the second transverse connecting groove (22) divide the second panel (2) into a plurality of second panel units, wherein a plurality of through-steel bars are embedded in the second panel (2), and the plurality of second panel units are connected via the through-steel bars, and the second longitudinal connecting groove (21) and the second transverse connecting groove (22) are used to cooperate with shear connectors (4) arranged in strips on a steel structure, so that the second panel (2) is connected to the steel structure as a whole.

3. The prefabricated reinforced concrete through-type shear nail groove bridge deck according to claim 1 or 2, characterized in that: A lifting steel bar (15) is arranged in the first longitudinal connection groove (12), the lifting steel bar (15) is fixedly connected to the through steel bar, both ends of the lifting steel bar (15) are anchored in the first panel unit (11), and the lifting steel bar (15) is used for lifting the first panel (1).

4. The prefabricated reinforced concrete through-type shear nail groove bridge deck according to claim 3 is characterized in that: The first panel (1) is provided with a plurality of lifting points, two lifting steel bars (15) are arranged at each lifting point, and the two lifting steel bars (15) are respectively fixed on both sides of the through steel bar.

5. The prefabricated reinforced concrete through-type shear nail groove bridge deck according to claim 4, characterized in that: The two hoisting steel bars (15) are arranged crosswise in an X shape, or the two hoisting steel bars (15) are both in an inverted V-shaped structure.

6. The prefabricated reinforced concrete through-type shear nail groove bridge deck according to claim 4, characterized in that: The two hoisting steel bars (15) are arranged crosswise in an X shape, and the included angle between the two hoisting steel bars (15) is between 30° and 60°.

7. The prefabricated reinforced concrete through-type shear nail groove bridge deck according to claim 1 or 2, characterized in that: The through-steel bars include longitudinal through-steel bars (13) and transverse through-steel bars (14); the longitudinal through-steel bars (13) are parallel to the first longitudinal connection grooves (12); and the first longitudinal connection grooves (12) are parallel to the width direction of the first panel (1).

8. The prefabricated reinforced concrete through-type shear nail groove bridge deck according to claim 7, characterized in that: A reinforcing steel bar (16) is arranged in the first longitudinal connection groove (12), the reinforcing steel bar (16) is fixedly arranged on the transverse penetrating steel bar (14), and both ends of the reinforcing steel bar (16) are anchored in the first panel unit (11).

9. A steel-concrete composite structure of a prefabricated reinforced concrete through-type shear stud groove bridge deck according to any one of claims 1 to 8, characterized in that: The invention comprises a plurality of longitudinal steel beams (3) arranged in parallel, wherein the longitudinal steel beams (3) are arranged in the direction of the bridge, and a shear connector (4) is arranged along the upper surface of the longitudinal steel beams (3). The first panel (1) is arranged on the plurality of longitudinal steel beams (3), and the shear connector (4) on the longitudinal steel beams (3) is inserted into a first longitudinal connection groove (12) of the first panel (1), and is connected to the first panel (1) through cast-in-place concrete (7) in the first longitudinal connection groove (12).

10. A steel-concrete composite structure of a prefabricated reinforced concrete through-type shear stud groove bridge deck according to any one of claims 1 to 8, characterized in that: The invention comprises a plurality of longitudinal steel beams (3) arranged in parallel, and transverse steel beams (5) arranged perpendicular to the longitudinal steel beams (3); the upper surfaces of the longitudinal steel beams (3) and the transverse steel beams (5) are both provided with shear connectors (4); the shear connectors (4) on the longitudinal steel beams (3) are inserted into the first longitudinal connecting grooves (12) of the first panel (1), and are connected to the first panel (1) through the cast-in-place concrete (7) in the first longitudinal connecting grooves (12); the shear connectors (4) on the longitudinal steel beams (3) and the transverse steel beams (5) are respectively inserted into the second longitudinal connecting grooves (21) and the second transverse connecting grooves (22) of the second panel (2), and are connected to the second panel (2) through the cast-in-place concrete (7) in the second longitudinal connecting grooves (21) and the second transverse connecting grooves (22).

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