A box beam structure

Abstract

The present application relates to a box girder structure, which belongs to the technical field of bridge engineering, and includes a bottom frame, a first support beam, a second support beam, and a driving member. The bottom frame is provided with a support groove and a support plate, and the bridge deck is installed on the support plate. The first support beam is arranged along the length direction of the support groove, is flush with the support plate and is fixed on the support groove. A plurality of sliding grooves are provided on the support plate, and a slidable second support beam is placed in each sliding groove. The driving member is installed on the first support beam, and is used to drive the second support beam to slide. The present invention drives the second support beam to slide in the sliding groove by the driving member, thereby adjusting the support position of the bridge deck, thereby improving the bearing capacity and stability of the bridge deck.

Description

Technical Field

[0001] The present application relates to the technical field of bridge engineering, and in particular to a box girder structure. Background Art

[0002] As an important part of bridge engineering, the stability and load-bearing capacity of the box girder structure are directly related to the safety and service life of the bridge. Traditional box girder structures usually adopt a fixed support method, and the support position cannot be adjusted according to actual conditions, which limits the load-bearing capacity and stability of the bridge deck to a certain extent. Utility Model Content

[0003] In order to improve the adaptability of the box beam, the present application provides a box beam structure, which adopts the following technical solutions:

[0004] A box beam structure, comprising a bottom frame of a box beam main structure, the bottom frame comprising a support groove, support plates protruding outwards are fixed on both sides of the support groove, and a bridge deck is installed on the support plates;

[0005] A first support beam located in the middle of the support groove and arranged along the length direction of the support groove, wherein the first support beam is flush with the support plate and is fixed to the support groove;

[0006] A plurality of sliding grooves are provided on the support plate in a direction perpendicular to the length of the support groove, the plurality of sliding grooves are arranged in the direction of the length of the support groove, and the sliding grooves on both sides of the support groove are symmetrically arranged; a second support beam is placed in each sliding groove, and the second support beam slides in the support groove in a direction perpendicular to the length of the support groove;

[0007] A driving member is installed on the first support beam to drive the second support to slide. There are multiple driving members, and two second support beams symmetrically arranged on both sides of the support groove are driven to slide through one driving member.

[0008] By adopting the above technical solution, after the bottom frame is installed, personnel use the driving member to move the two second support beams away from each other and extend them to the outside of the support plate, adjust the support position, and increase the support area at the same time, thereby improving the bearing capacity of the bridge deck.

[0009] Optionally, the driving member is a bidirectional screw, the driving member is passed through the first support beam, and is coaxially rotatably connected to the first support beam; the opposite threaded sections of the driving member are respectively threadedly connected to one of the second support beams.

[0010] By adopting the above technical solution, a person can move the second support beams on both sides of the support groove to both sides by screwing the driving member.

[0011] Optionally, it also includes a connecting beam for connecting all the second support beams on one side of the support groove, and the second support beams are provided with a connecting groove along the length direction of the support groove on the side away from the support groove. When the connecting groove slides to the outside of the support plate, the connecting beam is placed in the connecting groove and fixed to the second support beam by a first fixing member. At this time, the surface of the connecting beam is flush with the surface of the support plate.

[0012] By adopting the above technical solution, when the second support beam extends to the outside of the support plate, personnel place the connecting beam in the connecting groove, and then connect multiple second support beams into one through the first fixing member, thereby improving the correlation between the multiple second support beams and thereby improving the supporting capacity of the second support beams.

[0013] Optionally, a plurality of positioning grooves are symmetrically provided at both ends of the support groove, and a positioning block is inserted into each positioning groove at one end of the support groove, with one end of the positioning block located in the positioning groove and the other end extending outside the positioning groove.

[0014] By adopting the above technical solution, the personnel place the positioning block in the positioning groove near the end of the installed support groove to be spliced. Then, when splicing another bottom frame, they only need to plug the positioning block into the positioning groove of the bottom frame to be spliced, so that it is easier for the personnel to splice the bottom frames.

[0015] Optionally, the positioning groove is opened on the bottom wall of the support groove and is connected with the inner bottom wall of the support groove. A limiting groove is opened on the side wall of the support groove parallel to the bottom wall of the support groove and in a direction perpendicular to the bottom wall of the positioning groove. The limiting groove is connected with the positioning groove. A limiting block is provided at each end of the support groove in the length direction. The limiting block can be inserted into the limiting groove.

[0016] By adopting the above technical solution, when assembling the bottom frames to be spliced, the personnel first perform preliminary splicing on the bottom frames to be spliced, then insert the positioning block with the limiting block into the positioning groove, correct the position of the bottom frames to be spliced, and then insert the limiting block into the limiting grooves on the two bottom frames, so as to limit the sliding of the two bottom frames in the length direction of the supporting groove, thereby ensuring the stability of the bottom frames.

[0017] Optionally, it also includes a limit rod for limiting the positioning block, the limit rod is arranged parallel to the inner bottom wall of the support groove, one end of the limit rod is rotatably connected to the inner bottom wall of the support groove, the rotation axis is perpendicular to the inner bottom wall of the support groove, and when the limit rod is rotated to above the positioning block, the limit rod abuts against the side of the positioning block away from the bottom wall of the majority of support grooves, and one limit rod is provided at each positioning block.

[0018] By adopting the above technical solution, after the two bottom frames are spliced ​​and the positioning block is installed, the personnel rotate the limit rod to rotate it above the positioning block to tighten the positioning block.

[0019] Optionally, the width of the limit block in the length direction of the support groove is smaller than the width of the limit groove in the length direction of the support groove, and an elastic pad is provided at each end of the support groove, and the shape of the elastic pad is consistent with the end face of the support groove.

[0020] By adopting the technical solution, the extrusion between the two bottom frames is made elastic, so the bottom frames are protected.

[0021] Optionally, a plurality of water diversion grooves are provided on the inner bottom wall of the support groove along the length direction of the support groove, the water diversion grooves are arranged through both ends of the support groove, and the distance between the bottom wall of the water diversion groove and the outer bottom wall of the support groove gradually decreases from the middle of the water diversion groove to both ends, and a plurality of water flow grooves are provided at the connection between the two ends of the bottom frame and the water diversion groove, one end of each water flow groove is connected to a water diversion groove, and the other end extends to the bottom wall of the bottom frame.

[0022] By adopting the above technical solution, after the rainwater in the support trough flows into the water diversion trough, the bottom wall of the water diversion trough is lowered from the middle to both sides. At this time, the rainwater quickly flows from the water diversion trough into the water flow trough and then is discharged from the water flow trough, thereby avoiding water accumulation inside the support trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a box beam structure according to an embodiment of the present application;

[0024] Figure 2 It is a partial structural exploded schematic diagram of a box girder structure according to an embodiment of the present application;

[0025] Figure 3 yes Figure 2 A magnified schematic diagram of part A.

[0026] Figure numerals: 1, bottom frame; 11, supporting groove; 111, positioning groove; 112, limiting groove; 12, supporting plate; 121, sliding groove; 13, positioning block; 14, limiting block; 15, limiting rod; 16, elastic pad; 17, water diversion groove; 18, water flow groove; 2, first supporting beam; 21, supporting column; 3, second supporting beam; 31, connecting groove; 4, driving member; 5, connecting beam; 51, first fixing member. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] An embodiment of the present application discloses a box beam structure.

[0029] Reference Figure 1 and Figure 2 A box girder structure includes a bottom frame 1 of a box girder main structure, wherein the bottom frame 1 includes a support groove 11, and support plates 12 protruding outward are fixed on both sides of the groove of the support groove 11, and the bridge deck is installed on the support plates 12;

[0030] A first support beam 2 is located in the middle of the support groove 11 and is arranged along the length direction of the support groove 11. The first support beam 2 is flush with the support plate 12. The first support beam 2 is fixed to the support groove 11 to provide auxiliary support for the bridge deck. In this application, the first support beam 2 is fixed to the support groove 11 by a support column 21. Both ends of the support column 21 are connected to the first support beam 2 and the support groove 11 by bolts;

[0031] A plurality of sliding grooves 121 are provided on the support plate 12 in a direction perpendicular to the length of the support groove 11. The plurality of sliding grooves 121 are arranged in the direction of the length of the support groove 11, and the sliding grooves 121 on both sides of the support groove 11 are symmetrically arranged; a second support beam 3 is placed in each sliding groove 121, and the second support beam 3 slides in the support groove 11 in a direction perpendicular to the length of the support groove 11;

[0032] A driving member 4 is installed on the first support beam 2 to drive the second support to slide. There are multiple driving members 4. Two second support beams 3 symmetrically arranged on both sides of the support groove 11 are driven to slide by one driving member 4.

[0033] After the bottom frame 1 is installed, the personnel use the driving member 4 to move the two second support beams 3 away from each other and extend them to the outside of the support plate 12, adjust the support position, and increase the support area at the same time to improve the bearing capacity of the bridge deck.

[0034] Reference Figure 1 In the present application, the driving member 4 is a bidirectional screw rod, which is passed through the first support beam 2 and is coaxially rotatably connected with the first support beam 2; the opposite threaded sections of the driving member 4 are respectively threadedly connected with one of the second support beams 3;

[0035] A person screws the driving member 4 to move the second support beams 3 on both sides of the support groove 11 to both sides.

[0036] Reference Figure 1 In order to facilitate personnel to screw the driving member 4, a screw nut is coaxially fixed on the driving member 4.

[0037] Reference Figure 1In order to better improve the support of the second support beam 3, a box beam structure also includes a connecting beam 5 for connecting all the second support beams 3 on one side of the support groove 11. The second support beam 3 is provided with a connecting groove 31 along the groove length direction of the support groove 11 on the side away from the support groove 11. When the connecting groove 31 slides to the outside of the support plate 12, the connecting beam 5 is placed in the connecting groove 31 and fixed to the second support beam 3 by the first fixing member. At this time, the surface of the connecting beam 5 is flush with the surface of the support plate 12. In this application, the first fixing member uses a countersunk bolt;

[0038] After the second support beam 3 extends to the outside of the support plate 12, personnel place the connecting beam 5 in the connecting groove 31, and then connect multiple second support beams 3 together through the first fixing member to improve the correlation between the multiple second support beams 3, thereby improving the supporting capacity of the second support beams 3.

[0039] Reference Figure 2 and Figure 3 In order to facilitate the splicing of multiple bottom frames 1, multiple positioning grooves 111 are symmetrically opened at both ends of the support groove 11, and a positioning block 13 is inserted into each positioning groove 111 at one end of the support groove 11, and one end of the positioning block 13 is located in the positioning groove 111, and the other end extends outside the positioning groove 111;

[0040] The personnel place the positioning block 13 in the positioning groove 111 near the end to be spliced ​​of the installed support groove 11. Then, when splicing another bottom frame 1, it is only necessary to plug the positioning block 13 into the positioning groove 111 of the bottom frame 1 to be spliced, so that the personnel can splice the bottom frame 1.

[0041] Reference Figure 3 In order to limit the two assembled bottom frames 1 in the long direction of the support groove 11, the positioning groove 111 is provided on the bottom wall of the support groove 11 and is communicated with the inner bottom wall of the support groove 11. The side wall of the support groove 11 parallel to the bottom wall of the support groove 11 is provided with a limiting groove 112 in a direction perpendicular to the bottom wall of the positioning groove 111. The limiting groove 112 is communicated with the positioning groove 111. The positioning block 13 is provided with a limiting block 14 at each end of the support groove 11 in the long direction. The limiting block 14 can be inserted into the limiting groove 112.

[0042] When assembling the bottom frame 1 to be spliced, the personnel first perform preliminary splicing on the bottom frame 1 to be spliced, then insert the positioning block 13 with the limiting block 14 into the positioning groove 111, correct the position of the bottom frame 1 to be spliced, and then insert the limiting block 14 into the limiting groove 112 on the two bottom frames 1, so as to limit the sliding of the two bottom frames 1 in the length direction of the supporting groove 11, thereby ensuring the stability of the bottom frame 1.

[0043] Reference Figure 3In order to limit the limit rod 15, a box beam structure also includes a limit rod 15 for limiting the positioning block 13. The limit rod 15 is arranged parallel to the inner bottom wall of the support groove 11. One end of the limit rod 15 is rotatably connected to the inner bottom wall of the support groove 11. The rotation axis is perpendicular to the inner bottom wall of the support groove 11. When the limit rod 15 rotates to the top of the positioning block 13, the limit rod 15 abuts against the side of the positioning block 13 away from the bottom wall of most of the support grooves 11. A limit rod 15 is provided at each positioning block 13.

[0044] After the two bottom frames 1 are spliced ​​together and the positioning block 13 is installed, a person rotates the limit rod 15 to rotate it above the positioning block 13 to tighten the positioning block 13 .

[0045] Reference Figure 1 and Figure 3 During the use of the bottom frame 1, due to environmental reasons such as temperature, there is a mutual extrusion phenomenon between the two bottom frames 1. In order to avoid rigid extrusion between the two bottom frames 1, in the present application, the width of the limit block 14 in the direction of the length of the support groove 11 is smaller than the width of the limit groove 112 in the direction of the length of the support groove 11, and an elastic pad 16 is provided at each end of the support groove 11, and the shape of the elastic pad 16 is consistent with the end face of the support groove 11;

[0046] Thereby, the extrusion between the two bottom frames 1 is made elastic, so that the bottom frames 1 are protected.

[0047] Reference Figure 1 and Figure 3 During the use of the bottom frame 1, rainwater will enter the support groove 11 from the bridge deck, and the internal connection parts are easily soaked by rainwater. In order to quickly discharge the rainwater in the support groove 11, a plurality of water diversion grooves 17 are provided on the inner bottom wall of the support groove 11 along the length direction of the support groove 11. The water diversion grooves 17 are arranged through both ends of the support groove 11, and the distance between the bottom wall of the water diversion groove 17 and the outer bottom wall of the support groove 11 gradually decreases from the middle of the water diversion groove 17 to both ends. At the connection between the two ends of the bottom frame 1 and the water diversion groove 17, a plurality of water flow grooves 18 are provided. One end of a water flow groove 18 is connected to the water diversion groove 17, and the other end extends to the bottom wall of the bottom frame 1;

[0048] After the rainwater in the support groove 11 flows into the water diversion groove 17, the bottom wall of the water diversion groove 17 is lowered from the middle to both sides. At this time, the rainwater quickly flows from the water diversion groove 17 into the water flow groove 18 and then is discharged from the water flow groove 18, thereby avoiding water accumulation inside the support groove 11.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A box beam structure, characterized in that: include: A bottom frame (1) of a box girder main structure, the bottom frame (1) comprising a support groove (11), support plates (12) protruding outwards are fixed on both sides of the groove of the support groove (11), and the bridge deck is installed on the support plates (12); a first support beam (2) located in the middle of the support groove (11) and arranged along the groove length direction of the support groove (11), the first support beam (2) being flush with the support plate (12), and the first support beam (2) being fixed on the support groove (11); A plurality of sliding grooves (121) are provided on the support plate (12) along a direction perpendicular to the length of the support groove (11); the plurality of sliding grooves (121) are arranged along the length of the support groove (11), and the sliding grooves (121) on both sides of the support groove (11) are symmetrically arranged; a second support beam (3) is placed in each sliding groove (121); the second support beam (3) slides in the support groove (11) along a direction perpendicular to the length of the support groove (11); A driving member (4) is mounted on the first support beam (2) and is used to drive the second support to slide. The driving members (4) are provided in plurality, and two second support beams (3) symmetrically arranged on both sides of the support groove (11) are driven to slide by one of the driving members (4).

2. A box beam structure according to claim 1, characterized in that: The driving member (4) is a bidirectional screw rod, which is passed through the first support beam (2) and is coaxially rotatably connected to the first support beam (2); the opposite threaded sections of the driving member (4) are respectively threadedly connected to one of the second support beams (3).

3. A box beam structure according to claim 2, characterized in that: It also comprises a connecting beam (5) for connecting all the second supporting beams (3) on one side of the supporting groove (11); a connecting groove (31) is provided on the side of the second supporting beam (3) away from the supporting groove (11) along the groove length direction of the supporting groove (11); when the connecting groove (31) slides to the outside of the supporting plate (12), the connecting beam (5) is placed in the connecting groove (31) and is fixed to the second supporting beam (3) by a first fixing member; at this time, the surface of the connecting beam (5) is flush with the surface of the supporting plate (12).

4. A box beam structure according to claim 1, characterized in that: A plurality of positioning grooves (111) are symmetrically provided at both ends of the support groove (11); a positioning block (13) is inserted into each positioning groove (111) at one end of the support groove (11); one end of the positioning block (13) is located in the positioning groove (111) and the other end extends outside the positioning groove (111).

5. A box beam structure according to claim 4, characterized in that: The positioning groove (111) is formed on the bottom wall of the supporting groove (11) and is in communication with the inner bottom wall of the supporting groove (11); a limiting groove (112) is formed on the side wall of the supporting groove (11) parallel to the bottom wall of the supporting groove (11) and in a direction perpendicular to the bottom wall of the positioning groove (111); the limiting groove (112) is in communication with the positioning groove (111); and a limiting block (14) is respectively provided at both ends of the supporting groove (11) in the groove length direction; the limiting block (14) can be inserted into the limiting groove (112).

6. A box beam structure according to claim 5, characterized in that: It also includes a limiting rod (15) for limiting the positioning block (13), wherein the limiting rod (15) is arranged parallel to the inner bottom wall of the support groove (11), one end of the limiting rod (15) is rotatably connected to the inner bottom wall of the support groove (11), and the rotation axis is perpendicular to the inner bottom wall of the support groove (11), and when the limiting rod (15) is rotated to above the positioning block (13), the limiting rod (15) abuts against a side of the positioning block (13) away from the bottom wall of most support grooves (11), and each positioning block (13) is provided with a limiting rod (15).

7. A box beam structure according to claim 6, characterized in that: The width of the limit block (14) in the direction of the length of the support groove (11) is smaller than the width of the limit groove (112) in the direction of the length of the support groove (11), and an elastic pad (16) is provided at each end of the support groove (11), and the shape of the elastic pad (16) is consistent with the end face of the support groove (11).

8. The box beam structure according to claim 1, characterized in that: A plurality of water diversion grooves (17) are provided on the inner bottom wall of the support groove (11) along the groove length direction of the support groove (11); the water diversion grooves (17) are arranged to penetrate the two ends of the support groove (11); and the distance between the bottom wall of the water diversion groove (17) and the outer bottom wall of the support groove (11) gradually decreases from the middle of the water diversion groove (17) to the two ends; a plurality of water flow grooves (18) are provided at the connection points between the two ends of the bottom frame (1) and the water diversion grooves (17); one end of each water flow groove (18) is connected to one of the water diversion grooves (17), and the other end extends to the bottom wall of the bottom frame (1).

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