Expressway tie line bridge floor splicing structure

Abstract

The utility model discloses an expressway tie line bridge deck splicing structure. The front end threaded sections of the horizontal steel bars in the first prefabricated section and the rear end threaded sections of the horizontal steel bars in the second prefabricated section are in one-to-one correspondence and are connected into a whole through a steel bar butt joint mechanism. A steel bar butt joint mechanism operation gap is reserved in a seam between the upper portion of the first vertical steel plate and the upper portion of the second vertical steel plate, and a cover plate is detachably installed above the steel bar butt joint mechanism operation gap. The problem that the stress transmission efficiency between the first prefabricated section and the second prefabricated section is not high is ingeniously solved through combination of the steel bar butt joint mechanism and the inter-plate connecting component.

Description

Technical Field

[0001] The utility model relates to a highway connecting line bridge deck splicing structure. Background Art

[0002] Spliced ​​bridge construction is a key technology in modern bridge engineering. Through the precise fabrication and on-site assembly of prefabricated components, it significantly improves construction efficiency and quality control. During this process, the various bridge components are connected into a single structure through sophisticated splicing techniques. One of the most critical aspects is joint treatment. As the connection point between prefabricated components, joints not only affect the overall performance and durability of the bridge but also directly impact driving comfort and structural safety. Therefore, the design, construction, and subsequent maintenance of joints are crucial issues that cannot be ignored in bridge splicing technology.

[0003] The patent document with publication number CN107227821A provides a dry-connected prefabricated assembled steel-concrete composite beam to achieve fully dry connection of prefabricated composite bridge decks. Model test results verify the effectiveness of this technology and the good mechanical properties of the composite bridge deck using this technology.According to the patent document (see the specification and all drawings), it includes a first prefabricated section and a second prefabricated section; the first prefabricated section includes a first reinforced concrete slab and a first inter-plate connecting member installed at the front end of the first reinforced concrete slab, the first inter-plate connecting member has a first vertical steel plate, a first transverse steel plate, a first transverse steel plate lower supporting structure, a first vertical steel plate side shear connector and a first transverse steel plate upper shear connector connected as one body, the first transverse steel plate is located on the rear side of the first vertical steel plate, the first transverse steel plate lower supporting structure is located between the rear side of the first vertical steel plate and the lower surface of the first transverse steel plate, and the first vertical steel plate is provided with steel bar installation holes above the first transverse steel plate. And bolt mounting holes are distributed under the first transverse steel plate, the side shear connectors of the first vertical steel plate are distributed on the rear side of the first vertical steel plate and are located above the first transverse steel plate, the upper shear connectors of the first transverse steel plate are distributed on the upper surface of the first transverse steel plate, the front end face of the first reinforced concrete plate is matched with the rear side face of the first vertical steel plate, the front end lower surface of the first reinforced concrete plate is matched with the upper surface of the first transverse steel plate, the front end thread sections of the multiple horizontal steel bars distributed in the first reinforced concrete plate are respectively inserted into the corresponding steel bar mounting holes and locked on the first vertical steel plate through the first threaded connector; the second prefabricated section includes a second reinforced concrete plate and a plate installed at the rear end of the second reinforced concrete plate The second plate connecting member includes a second vertical steel plate, a second transverse steel plate, a lower supporting structure of the second transverse steel plate, a side shear connector of the second vertical steel plate and an upper shear connector of the second transverse steel plate that are connected as a whole. The second transverse steel plate is located on the front side of the second vertical steel plate. The lower supporting structure of the second transverse steel plate is located between the front side of the first vertical steel plate and the lower surface of the second transverse steel plate. The second vertical steel plate is provided with a steel bar mounting hole above the second transverse steel plate and a bolt mounting hole below the second transverse steel plate. The side shear connector of the second vertical steel plate is distributed on the rear side of the second vertical steel plate and is located above the second transverse steel plate. The upper shear connector of the second transverse steel plate The connecting parts are distributed on the upper surface of the first horizontal steel plate, the front end face of the second reinforced concrete plate cooperates with the rear side face of the second vertical steel plate, the rear end lower surface of the second reinforced concrete plate cooperates with the upper surface of the second horizontal steel plate, and the rear end threaded sections of multiple horizontal steel bars distributed in the second reinforced concrete plate are respectively inserted into the corresponding steel bar mounting holes and locked on the second vertical steel plate through the second threaded connecting parts; wherein, the front side face of the first vertical steel plate is in contact with the rear side face of the second vertical steel plate, and each bolt mounting hole on the first plate connecting member corresponds one by one to each bolt mounting hole on the second plate connecting member and is connected by bolts, and the upper part of the first vertical steel plate and the upper part of the second vertical steel plate are welded.

[0004] High-capacity highway link lines are a special type of highway, primarily used to connect major transportation hubs or urban areas to meet the needs of high-capacity, high-efficiency transportation. Due to the high traffic volume on high-capacity highway link lines, the use of precast composite bridge panels requires frequent replacement of precast sections. However, the welded structure between the upper portion of the first vertical steel plate and the upper portion of the second vertical steel plate is not conducive to the rapid assembly and disassembly of the precast sections. Furthermore, because the horizontal steel bars in the first reinforced concrete slab are not directly connected to the horizontal steel bars in the second reinforced concrete slab, the stress transfer efficiency between the first and second precast sections is reduced, which increases the risk of crack formation. Utility Model Content

[0005] The utility model aims to provide a highway connecting line bridge deck splicing structure to solve the technical problem of low stress transfer efficiency between the first prefabricated section and the second prefabricated section in the prior art.

[0006] To this end, a highway connecting line bridge deck splicing structure is provided, comprising: a first prefabricated section, the first prefabricated section comprising a first reinforced concrete slab and a first inter-plate connecting member installed at the front end of the first reinforced concrete slab, the first inter-plate connecting member comprising a first vertical steel plate, a first transverse steel plate, a first transverse steel plate lower supporting structure, a first vertical steel plate side shear connector and a first transverse steel plate upper shear connector connected as one body, the first transverse steel plate is located on the rear side of the first vertical steel plate, the first transverse steel plate lower supporting structure is located between the rear side of the first vertical steel plate and the lower surface of the first transverse steel plate, the first vertical steel plate is provided with steel bar installation holes distributed above the first transverse steel plate and located at the Bolt mounting holes are distributed under the first transverse steel plate, the side shear connectors of the first vertical steel plate are distributed on the rear side of the first vertical steel plate and are located above the first transverse steel plate, the upper shear connectors of the first transverse steel plate are distributed on the upper surface of the first transverse steel plate, the front end surface of the first reinforced concrete plate is matched with the rear side of the first vertical steel plate, the front end lower surface of the first reinforced concrete plate is matched with the upper surface of the first transverse steel plate, the front end thread sections of the multiple horizontal steel bars distributed in the first reinforced concrete plate are respectively inserted into the corresponding steel bar mounting holes and locked on the first vertical steel plate through the first threaded connector; the second prefabricated section, the second prefabricated section includes a second reinforced concrete plate and a second reinforced concrete plate installed thereon The second inter-plate connecting member at the rear end of the second reinforced concrete slab, the second inter-plate connecting member has a second vertical steel plate, a second transverse steel plate, a second transverse steel plate lower supporting structure, a second vertical steel plate side shear connector and a second transverse steel plate upper shear connector connected as one body, the second transverse steel plate is located on the front side of the second vertical steel plate, the second transverse steel plate lower supporting structure is located between the front side of the first vertical steel plate and the lower surface of the second transverse steel plate, the second vertical steel plate is provided with steel bar mounting holes above the second transverse steel plate and bolt mounting holes below the second transverse steel plate, the second vertical steel plate side shear connector is distributed on the rear side of the second vertical steel plate and is located at Above the second transverse steel plate, an upper shear connector of the second transverse steel plate is distributed on the upper surface of the first transverse steel plate, the front end surface of the second reinforced concrete plate matches the rear side surface of the second vertical steel plate, the rear lower surface of the second reinforced concrete plate matches the upper surface of the second transverse steel plate, and the rear end threaded sections of the plurality of horizontal steel bars distributed in the second reinforced concrete plate are respectively inserted into the corresponding steel bar mounting holes and locked to the second vertical steel plate by the second threaded connector; wherein, the front side surface of the first vertical steel plate is in contact with the rear side surface of the second vertical steel plate, and each bolt mounting hole on the first inter-plate connecting member corresponds to each bolt mounting hole on the second inter-plate connecting member and is connected by bolts;The front threaded section of each horizontal steel bar in the first prefabricated section corresponds to the rear threaded section of each horizontal steel bar in the second prefabricated section and is connected as a whole by a steel bar butt joint mechanism. A gap for the steel bar butt joint mechanism is reserved at the joint between the upper portion of the first vertical steel plate and the upper portion of the second vertical steel plate, and a cover plate is removably installed above the gap for the steel bar butt joint mechanism.

[0007] As an improvement and / or instantiation of the above-mentioned highway connecting line bridge splicing structure, further: the steel bar docking mechanism includes: a first internal threaded sleeve, the first internal threaded sleeve serves as the first threaded connector and has a first internal threaded sleeve internal thread and a first internal threaded sleeve external thread, the first internal threaded sleeve internal thread is adaptively connected to the front end thread segment of the corresponding horizontal steel bar; a second internal threaded sleeve, the second internal threaded sleeve serves as the second threaded connector and has a second internal threaded sleeve internal thread and a second internal threaded sleeve external thread, the second internal threaded sleeve internal thread is adaptively connected to the rear end thread segment of the corresponding horizontal steel bar; an external threaded sleeve, the external threaded sleeve has an external threaded sleeve internal thread, the external threaded sleeve internal thread is adaptively connected to the first internal threaded sleeve external thread and the second internal threaded sleeve external thread at the same time; and a nut, the nut is installed on the first internal threaded sleeve and is adaptively connected to the first internal threaded sleeve external thread so that the external threaded sleeve is axially locked between the nut and the second internal threaded sleeve, or the nut is installed on the second internal threaded sleeve and is adaptively connected to the second internal threaded sleeve external thread so that the external threaded sleeve is axially locked between the nut and the first internal threaded sleeve.

[0008] As an improvement and / or instantiation of the above-mentioned highway connecting line bridge splicing structure, further: the first internal thread sleeve includes a first thread segment and a first shoulder segment, the first internal thread sleeve internal thread and the first internal thread sleeve external thread are respectively arranged on the first thread segment, and the first shoulder segment is located between the first thread segment and the first vertical steel plate; and / or, the second internal thread sleeve includes a second thread segment and a second shoulder segment, the second internal thread sleeve internal thread and the second internal thread sleeve external thread are respectively arranged on the second thread segment, and the second shoulder segment is located between the second thread segment and the second vertical steel plate.

[0009] As an improvement and / or instantiation of the above-mentioned highway connecting line bridge splicing structure, further: a carrying and rotating structure is provided on the outer cylindrical surface of the first boss section and / or the outer cylindrical surface of the second boss section.

[0010] As an improvement and / or instantiation of the above-mentioned highway connecting line bridge splicing structure, further: a cover plate placement groove is opened on the upper surface of the first vertical steel plate and the upper surface of the second vertical steel plate.

[0011] The above-mentioned highway connecting line bridge deck splicing structure is combined with the inter-plate connecting components through the steel bar butt joint mechanism, which cleverly solves the problem of low stress transfer efficiency between the first prefabricated section and the second prefabricated section.

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be learned through practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings that constitute part of this specification are used to assist in understanding the present invention. The contents provided in the drawings and the related descriptions in this specification can be used to explain the present invention, but do not constitute an improper limitation on the present invention.

[0014] Figure 1 This is a schematic diagram of a highway connecting line bridge deck splicing structure according to an embodiment of the present utility model.

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the first inter-plate connecting component.

[0016] Figure 3 for Figure 1 A cross-sectional view of the spliced ​​structure of the bridge deck of the expressway connecting line is shown.

[0017] Figure 4 for Figure 3 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the present invention in conjunction with the accompanying drawings. A person skilled in the art will be able to implement the present invention based on these descriptions. Before describing the present invention in conjunction with the accompanying drawings, it should be noted that:

[0019] The technical solutions and technical features provided in each section, including the following description, may be combined with each other unless they conflict. In addition, where possible, these technical solutions, technical features, and related combinations may be assigned specific technical themes and protected by relevant patents.

[0020] The embodiments of the utility model involved in the following description are generally only a part of the embodiments rather than all the embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of patent protection.

[0021] Regarding terms and units in this specification: The terms "include," "comprising," "having," and any variations thereof in this specification, the corresponding claims, and related sections are intended to cover non-exclusive inclusions. Other relevant terms and units are to be reasonably interpreted based on the relevant content provided in this specification.

[0022] Figure 1 This is a schematic diagram of a highway connecting line bridge deck splicing structure according to an embodiment of the present utility model. Figure 2 for Figure 1 Schematic diagram of the structure of the first inter-plate connecting component. Figure 3 for Figure 1 A cross-sectional view of the spliced ​​structure of the bridge deck of the expressway connecting line is shown. Figure 4 for Figure 3 A partial enlarged view of the middle A. Figures 1-4As shown, a highway connecting line bridge deck splicing structure includes: a first prefabricated section 1, the first prefabricated section 1 includes a first reinforced concrete slab 11 and a first inter-plate connecting member 12 installed at the front end of the first reinforced concrete slab 11, the first inter-plate connecting member 12 has a first vertical steel plate 121, a first transverse steel plate 122, a first transverse steel plate lower supporting structure 123, a first vertical steel plate side shear connector 124 and a first transverse steel plate upper shear connector 125 connected as one body, the first transverse steel plate 122 is located on the rear side of the first vertical steel plate 121, the first transverse steel plate lower supporting structure 123 is located between the rear side of the first vertical steel plate 121 and the lower surface of the first transverse steel plate 122, and the first vertical steel plate 121 is located above the first transverse steel plate 122. There are steel bar mounting holes 121a and bolt mounting holes 121b distributed below the first transverse steel plate 122. The first vertical steel plate side shear connector 124 is distributed on the rear side of the first vertical steel plate 121 and located above the first transverse steel plate 122. The first transverse steel plate upper shear connector 125 is distributed on the upper surface of the first transverse steel plate 122. The front end surface of the first reinforced concrete slab 11 cooperates with the rear side of the first vertical steel plate 121. The front end lower surface of the first reinforced concrete slab 11 cooperates with the upper surface of the first transverse steel plate 122. The front end threaded sections of the multiple horizontal steel bars 111 distributed in the first reinforced concrete slab 11 are respectively inserted into the corresponding steel bar mounting holes 121a and locked on the first vertical steel plate 121 through the first threaded connector.The second prefabricated section 2, the second prefabricated section 2 includes a second reinforced concrete slab 21 and a second inter-plate connecting member 22 installed at the rear end of the second reinforced concrete slab 21, the second inter-plate connecting member 22 (similar in structure to the second inter-plate connecting member 12) has a second vertical steel plate, a second transverse steel plate, a second transverse steel plate lower supporting structure, a second vertical steel plate side shear connector and a second transverse steel plate upper shear connector connected as one body, the second transverse steel plate is located on the front side of the second vertical steel plate, the second transverse steel plate lower supporting structure is located between the front side of the first vertical steel plate and the lower surface of the second transverse steel plate, the second vertical steel plate is provided with steel bar mounting holes above the second transverse steel plate and bolt mounting holes below the second transverse steel plate, the second vertical steel plate side shear connector is distributed on the rear side of the second vertical steel plate and above the second transverse steel plate, the second transverse steel plate upper shear connector is distributed on the upper surface of the first transverse steel plate, the second reinforced concrete The front end face of the plate 21 matches the rear side face of the second vertical steel plate, the rear end lower surface of the second reinforced concrete plate 21 matches the upper surface of the second transverse steel plate, and the rear end threaded sections of the multiple horizontal steel bars 211 distributed in the second reinforced concrete plate 21 are respectively inserted into the corresponding steel bar mounting holes and locked to the second vertical steel plate through the second threaded connection piece; wherein, the front side face of the first vertical steel plate fits the rear side face of the second vertical steel plate, and the bolt mounting holes on the first inter-plate connecting member 12 correspond one-to-one with the bolt mounting holes on the second inter-plate connecting member 22 and are connected by bolts; the front end threaded sections of the horizontal steel bars 111 in the first prefabricated section 1 correspond one-to-one with the rear end threaded sections of the horizontal steel bars 211 in the second prefabricated section 2 and are connected as a whole through a steel bar docking mechanism; a steel bar docking mechanism operating gap 3 is reserved at the joint between the upper part of the first vertical steel plate and the upper part of the second vertical steel plate, and a removable cover plate (not shown in the figure) is installed above the steel bar docking mechanism operating gap 3.

[0023] Specifically, the steel bar docking mechanism includes: a first internal threaded sleeve 41, which serves as the first threaded connector and has a first internal threaded sleeve internal thread and a first internal threaded sleeve external thread, and the first internal threaded sleeve internal thread is adapted to be connected with the front end thread segment of the corresponding horizontal steel bar; a second internal threaded sleeve 42, which serves as the second threaded connector and has a second internal threaded sleeve internal thread and a second internal threaded sleeve external thread, and the second internal threaded sleeve internal thread is adapted to be connected with the rear end thread segment of the corresponding horizontal steel bar; an external threaded sleeve 43, which has an external threaded sleeve internal thread, and the external threaded sleeve internal thread is adapted to be connected with the first internal threaded sleeve external thread and the second internal threaded sleeve external thread at the same time; a nut 44, which is installed on the first internal threaded sleeve and adapted to be connected with the first internal threaded sleeve external thread so as to axially lock the external threaded sleeve between the nut and the second internal threaded sleeve, or, the nut is installed on the second internal threaded sleeve and adapted to be connected with the second internal threaded sleeve external thread so as to axially lock the external threaded sleeve between the nut and the first internal threaded sleeve.

[0024] The above-mentioned steel bar docking mechanism is similar to the structure and working principle of the "double-threaded steel bar joint" currently used in construction projects. It can conveniently dock and tighten the front end threaded section of each horizontal steel bar 111 in the first prefabricated section 1 with the rear end threaded section of each horizontal steel bar 211 in the second prefabricated section 2.

[0025] The aforementioned highway link bridge deck splicing structure, incorporating a steel bar butt joint mechanism and inter-plate connection components, cleverly addresses the issue of inefficient stress transfer between the first and second precast sections. This design not only improves the overall structural performance, crack resistance, and fatigue resistance, but also maintains the rapidity and flexibility of prefabrication. This design optimizes prestressing, enhancing structural reliability and seismic resistance. Furthermore, its flexible installation and maintenance features, along with its user-friendly removable design, make it particularly suitable for frequently used highway link bridges that require regular maintenance and updates. This improves structural performance while reducing long-term maintenance costs.

[0026] The first internal screw sleeve 41 includes a first threaded section and a first shoulder section, wherein the first internal screw sleeve internal thread and the first internal screw sleeve external thread are respectively provided on the first threaded section, and the first shoulder section is located between the first threaded section and the first vertical steel plate; the second internal screw sleeve 42 includes a second threaded section and a second shoulder section, wherein the second internal screw sleeve internal thread and the second internal screw sleeve external thread are respectively provided on the second threaded section, and the second shoulder section is located between the second threaded section and the second vertical steel plate. A rotating structure is also provided on the outer cylindrical surface of the first shoulder section and the outer cylindrical surface of the second shoulder section to facilitate the rotation and tightening of the first internal screw sleeve 41 and the second internal screw sleeve 42.

[0027] In addition, cover plate placement grooves 5 are provided on the upper surfaces of the first vertical steel plate and the second vertical steel plate to facilitate installation of the cover plates.

[0028] The above describes the relevant contents of the present invention. Based on these descriptions, a person skilled in the art will be able to implement the present invention. Based on the above contents of this specification, all other embodiments obtained by a person skilled in the art without inventive work should fall within the scope of patent protection.

Claims

1. Expressway connecting line bridge deck splicing structure, including: The first prefabricated section comprises a first reinforced concrete slab and a first inter-plate connecting member installed at the front end of the first reinforced concrete slab, the first inter-plate connecting member comprises a first vertical steel plate, a first transverse steel plate, a first transverse steel plate lower supporting structure, a first vertical steel plate side shear connector and a first transverse steel plate upper shear connector connected as one body, the first transverse steel plate is located on the rear side of the first vertical steel plate, the first transverse steel plate lower supporting structure is located between the rear side of the first vertical steel plate and the lower surface of the first transverse steel plate, the first vertical steel plate is provided with steel bar installation holes distributed above the first transverse steel plate and located Bolt mounting holes are distributed below the first transverse steel plate, side shear connectors of the first vertical steel plate are distributed on the rear side of the first vertical steel plate and located above the first transverse steel plate, and upper shear connectors of the first transverse steel plate are distributed on the upper surface of the first transverse steel plate. The front end surface of the first reinforced concrete plate matches the rear side of the first vertical steel plate, and the front end lower surface of the first reinforced concrete plate matches the upper surface of the first transverse steel plate. The front end threaded sections of a plurality of horizontal steel bars distributed in the first reinforced concrete plate are respectively inserted into the corresponding steel bar mounting holes and locked on the first vertical steel plate through the first threaded connectors. The second prefabricated section comprises a second reinforced concrete slab and a second inter-plate connecting member installed at the rear end of the second reinforced concrete slab, the second inter-plate connecting member comprises a second vertical steel plate, a second transverse steel plate, a second transverse steel plate lower supporting structure, a second vertical steel plate side shear connector and a second transverse steel plate upper shear connector connected as one body, the second transverse steel plate is located on the front side of the second vertical steel plate, the second transverse steel plate lower supporting structure is located between the front side of the first vertical steel plate and the lower surface of the second transverse steel plate, the second vertical steel plate is provided with steel bar installation holes distributed above the second transverse steel plate and located Bolt mounting holes are distributed below the second transverse steel plate, side shear connectors of the second vertical steel plate are distributed on the rear side of the second vertical steel plate and are located above the second transverse steel plate, and upper shear connectors of the second transverse steel plate are distributed on the upper surface of the first transverse steel plate, the front end surface of the second reinforced concrete plate is matched with the rear side of the second vertical steel plate, the rear end lower surface of the second reinforced concrete plate is matched with the upper surface of the second transverse steel plate, and the rear end threaded sections of the plurality of horizontal steel bars distributed in the second reinforced concrete plate are respectively inserted into the corresponding steel bar mounting holes and locked on the second vertical steel plate through the second threaded connectors; The front side of the first vertical steel plate is in contact with the rear side of the second vertical steel plate, and the bolt mounting holes on the first inter-plate connecting member correspond to the bolt mounting holes on the second inter-plate connecting member and are connected by bolts. Its characteristics are: The front threaded section of each horizontal steel bar in the first prefabricated section corresponds to the rear threaded section of each horizontal steel bar in the second prefabricated section and is connected as a whole by a steel bar butt joint mechanism; An operating gap for the steel bar butt joint mechanism is reserved at the joint between the upper portion of the first vertical steel plate and the upper portion of the second vertical steel plate, and a cover plate is detachably installed above the operating gap for the steel bar butt joint mechanism.

2. The highway connecting line bridge deck splicing structure according to claim 1, characterized in that: The steel bar butt joint mechanism comprises: A first internal threaded sleeve, the first internal threaded sleeve serving as the first threaded connector and having a first internal threaded sleeve internal thread and a first internal threaded sleeve external thread, the first internal threaded sleeve internal thread being adapted to be connected to a front end threaded section of a corresponding horizontal steel bar; A second internal threaded sleeve, the second internal threaded sleeve serving as the second threaded connector and having a second internal threaded sleeve internal thread and a second internal threaded sleeve external thread, the second internal threaded sleeve internal thread being adapted to be connected to a rear end threaded section of a corresponding horizontal steel bar; An external screw sleeve, wherein the external screw sleeve has an external screw sleeve internal thread, and the external screw sleeve internal thread is adapted to be connected with the first internal screw sleeve external thread and the second internal screw sleeve external thread at the same time; and A nut is mounted on the first internal threaded sleeve and is adapted to be connected with the external thread of the first internal threaded sleeve so as to axially lock the external threaded sleeve between the nut and the second internal threaded sleeve, or the nut is mounted on the second internal threaded sleeve and is adapted to be connected with the external thread of the second internal threaded sleeve so as to axially lock the external threaded sleeve between the nut and the first internal threaded sleeve.

3. The highway connecting line bridge deck splicing structure according to claim 2, characterized in that: The first internal screw sleeve comprises a first thread segment and a first shoulder segment, the first internal screw sleeve internal thread and the first internal screw sleeve external thread are respectively provided on the first thread segment, and the first shoulder segment is located between the first thread segment and the first vertical steel plate; And / or, the second internal screw sleeve includes a second thread segment and a second boss segment, the second internal screw sleeve internal thread and the second internal screw sleeve external thread are respectively arranged on the second thread segment, and the second boss segment is located between the second thread segment and the second vertical steel plate.

4. The highway connecting line bridge deck splicing structure according to claim 3, characterized in that: A rotation-carrying structure is provided on the outer cylindrical surface of the first shoulder section and / or the outer cylindrical surface of the second shoulder section.

5. The highway connecting line bridge deck splicing structure according to any one of claims 1 to 4, characterized in that: Cover plate placement grooves are provided on the upper surfaces of the first vertical steel plate and the second vertical steel plate.

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