Fabricated corrugated steel web continuous composite beam

Abstract

The utility model discloses an assembly type corrugated steel web continuous composite beam which comprises a bottom plate and a top plate, webs are symmetrically and obliquely arranged between the bottom plate and the top plate to form a box beam structure, a driving shaft is axially and rotatably arranged on the bottom plate, sliding seats are symmetrically and slidably arranged on the bottom plate, and flexible pressurizing blocks are arranged on the sliding seats. And the sliding seat is in threaded fit with a threaded column part arranged on the driving shaft. According to the assembly type corrugated steel web continuous composite beam, a wrench tool is used for driving the driving shaft to axially rotate, the two sliding seats relatively slide away from each other under the action of the threaded column parts, so that the sliding seats and the flexible pressurizing blocks are close to the lower ends of the webs on the two sides respectively; and the abutting part of the flexible pressurizing block moves to approach and extrude the inner side surface of the lower end of the web, so that the transverse compressive strength of the lower end of the web is improved, the situation that the top plate inclines due to bending deformation of the web under transverse pressure of the plate is reduced, and the mounting stability of the top plate is improved.

Description

Technical Field

[0001] This utility model relates to the field of composite beam technology, and more specifically to an assembled corrugated steel web continuous composite beam. Background Technology

[0002] Composite beam structures feature concrete bridge decks at the top edge of steel beams, fully utilizing the performance advantages of steel and concrete. Their main load-bearing components are steel main beam structures, requiring less concrete and causing less environmental pollution. They have been widely used in bridge construction. Traditional continuous beam bridges mostly adopt prestressed concrete box girder main beam structures.

[0003] According to announcement number CN216379113U, announcement date: April 26, 2022, a prefabricated corrugated steel web continuous composite beam is disclosed. The composite beam is a box girder, including a concrete top slab, a web, a concrete bottom slab, and transverse diaphragms. The concrete top slab is located at the upper end of the web, and a first fitting groove is provided on the bottom surface of the concrete top slab, which works in conjunction with the web. The web is a corrugated web located between the concrete top slab and the concrete bottom slab, and the transverse diaphragms are engaged between the symmetrically arranged webs. The concrete bottom slab is located at the lower end of the web, and a second fitting groove is provided on the concrete bottom slab, which works in conjunction with the web. This composite beam can be hoisted and assembled during installation, effectively avoiding the difficulties of on-site pouring. At the same time, the weight of the single structure is small, which is convenient for transportation and assembly. Moreover, the front and rear ends of the box girder are connected, which can effectively avoid temperature difference problems. It has the characteristics of convenient transportation, simple assembly, and high construction efficiency.

[0004] In the prior art, including the aforementioned patent, a web is used to form a box girder structure between a concrete top slab and a concrete bottom slab. However, since the web is arranged at an angle, the top end of the web is subjected to lateral pressure perpendicular to the web due to the weight of the concrete top slab. Consequently, the bottom end of the web near the concrete bottom slab is subjected to lateral pressure and bends, resulting in the tilting of the concrete top slab. Utility Model Content

[0005] The purpose of this invention is to provide a prefabricated corrugated steel web continuous composite beam to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated corrugated steel web continuous composite beam, including a bottom plate and a top plate, wherein webs are symmetrically and obliquely arranged between the bottom plate and the top plate to form a box girder structure, a drive shaft is axially rotatably provided on the bottom plate, and sliding seats are symmetrically and slidably provided on the bottom plate, wherein a flexible pressure block is provided on the sliding seat, and the sliding seat is threadedly engaged with the threaded column part provided on the drive shaft. The drive shaft is driven to rotate and drive the two sliding seats to slide away from each other, and the contact part of the flexible pressure block deforms and abuts against the vertically lower end of the web on the inner side of the box girder structure.

[0007] Preferably, the bottom plate has a lower fitting groove, the top plate has an upper fitting groove, the two ends of the web plate are respectively inserted into the lower fitting groove and the upper fitting groove, the bottom plate also has an inner cavity and a connecting groove, the flexible pressure block has a deformation cavity, the inner cavity is connected to the lower fitting groove, the first end of the connecting groove is connected to the inner cavity, and the second end faces the deformation cavity.

[0008] Preferably, the system also includes a vertical plate and locking bolts. The top plate has a top groove, and the bottom plate has an installation groove. The upper end of the vertical plate is fitted into the top groove, and the lower end of the vertical plate is fixed into the installation groove by locking bolts so that the vertical plate is located between the web plates.

[0009] Preferably, the vertical plate is symmetrically provided with protrusions, and the flexible pressure block is provided with contact grooves in a symmetrical linear array. The vertical plate is installed on the bottom plate and the top plate by locking bolts so that the vertical plate abuts against the side of the flexible pressure block. The sliding seat is driven to move the flexible pressure block so that the contact grooves successively scrape and pass over the protrusions.

[0010] Preferably, the mounting slot is provided with a guide groove.

[0011] Preferably, the base plate is symmetrically provided with support blocks, which abut against the lower vertical end of the web of the outer side of the box girder structure, and the support blocks are provided with embedded parts, which abut against the support grooves symmetrically opened on the base plate.

[0012] In the above technical solution, the prefabricated corrugated steel web continuous composite beam provided by this utility model has the following beneficial effects: by using a wrench to drive the drive shaft to rotate axially, the two sliding seats are relatively slid away from each other by the threaded column, so that the sliding seats and the flexible pressure block move closer to the lower end of the web on both sides, and the contact part of the flexible pressure block moves closer to and presses against the inner surface of the lower end of the web, thereby improving the transverse compressive strength of the lower end of the web, thereby reducing the occurrence of bending deformation of the web due to the transverse pressure of the plate and causing the top plate to tilt, and improving the installation stability of the top plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the overall structure of an embodiment of the present utility model;

[0016] Figure 3 An exploded structural diagram of the base plate, top plate, and vertical plate provided for an embodiment of this utility model;

[0017] Figure 4 An exploded structural diagram of the drive shaft, sliding seat, flexible pressure block, support block, and web provided for an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Base plate; 11. Lower fitting groove; 111. Inner cavity; 112. Connecting groove; 12. Mounting part; 13. Support groove; 14. Mounting groove; 141. Threaded mounting hole; 142. Guide groove; 2. Web plate; 3. Top plate; 31. Upper fitting groove; 32. Top groove; 41. Drive shaft; 411. Drive part; 412. Threaded column part; 42. Sliding seat; 421. Threaded mating hole; 422. Sliding part; 43. Flexible pressure block; 431. Abutment part; 432. Contact groove; 433. Deformation cavity; 5. Support block; 51. Embedded part; 6. Vertical plate; 61. Protrusion part; 7. Locking bolt. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0021] like Figure 1-4 As shown, a prefabricated corrugated steel web continuous composite beam includes a bottom plate 1 and a top plate 3. Web plates 2 are symmetrically and obliquely arranged between the bottom plate 1 and the top plate 3 to form a box girder structure. A drive shaft 41 is axially rotatably mounted on the bottom plate 1. Sliding seats 42 are symmetrically slidably mounted on the bottom plate 1. Flexible pressure blocks 43 are mounted on the sliding seats 42. The sliding seats 42 are threadedly engaged with the threaded column portion 412 mounted on the drive shaft 41. The drive shaft 41 is driven to rotate, causing the two sliding seats 42 to slide away from each other. The contact portion 431 of the flexible pressure block 43 deforms and abuts against the vertically lower end of the web plate 2 on the inner side of the box girder structure.

[0022] Specifically, such as Figure 1 As shown, web plates 2 are symmetrically and obliquely arranged between the bottom plate 1 and the top plate 3 to form a box girder structure. Since the width of the top plate 3 is greater than the width of the bottom plate 1, as... Figure 2As shown, the end of the web plate 2 closest to the top plate 3 is arranged relatively inclined away from each other, while the bottom plate 1 and the top plate 3 are both precast concrete slabs. The drive shaft 41 is axially rotatably mounted on the mounting part 12 of the bottom plate 1. The drive shaft 41 is provided with a threaded column part 412, and the sliding seat 42 is provided with a threaded mating hole 421. The threaded column part 412 is threadedly mated with the threaded mating hole 421. The sliding seat 42 is also provided with a sliding part 422, which is slidably mounted on the bottom plate 1. The drive shaft 41 is also provided with a drive part with a hexagonal cross-section. 411, a wrench can be used to drive the drive shaft 41 to rotate axially. At this time, the two sliding seats 42 slide away from each other due to the threaded column portion 412, so that the sliding seats 42 and the flexible pressure block 43 move closer to the lower end of the web plate 2 on both sides. The contact portion 431 of the flexible pressure block 43 moves closer to and presses against the inner surface of the lower end of the web plate 2, thereby increasing the lateral compressive strength of the lower end of the web plate 2. This reduces the bending deformation of the web plate 2 due to the lateral pressure of the plate, which could cause the top plate 3 to tilt, thus improving the installation stability of the top plate 3. Secondly, the web plate 2 is made of corrugated steel to further improve the deformation resistance of the web plate 2. The contact portion 431 of the flexible pressure block 43 is also corrugated and has a concave-convex shape so that the contact portion 431 can fit against the lower end surface of the inclined web plate 2, improving the support and stability of the web plate 2.

[0023] In the above technical solution, a wrench is used to drive the drive shaft 41 to rotate axially. At this time, the two sliding seats 42 are relatively slid away from each other by the threaded column portion 412, so that the sliding seats 42 and the flexible pressure block 43 move closer to the lower end of the web plate 2 on both sides. The contact portion 431 of the flexible pressure block 43 moves closer to and presses against the inner surface of the lower end of the web plate 2, thereby improving the lateral compressive strength of the lower end of the web plate 2. This reduces the occurrence of bending deformation of the web plate 2 due to the lateral pressure of the plate, which would cause the top plate 3 to tilt, and improves the installation stability of the top plate 3.

[0024] As a further embodiment provided by this utility model, a lower fitting groove 11 is provided on the bottom plate 1, an upper fitting groove 31 is provided on the top plate 3, and the two ends of the web plate 2 are respectively inserted into the lower fitting groove 11 and the upper fitting groove 31. An inner cavity 111 and a connecting groove 112 are also provided on the bottom plate 1. A deformation cavity 433 is provided on the flexible pressure block 43. The inner cavity 111 is connected to the lower fitting groove 11, and the first end of the connecting groove 112 is connected to the inner cavity 111, and the second end faces the deformation cavity 433.

[0025] Specifically, such as Figure 2As shown, the lower end of the connecting groove 112 is the first end, and the upper end of the connecting groove 112 is the second end. The upper end of the web plate 2 is inserted into the upper fitting groove 31, and the lower end of the web plate 2 is inserted into the lower fitting groove 11 so that the web plate 2, the bottom plate 1, and the top plate 3 are assembled to form a box girder structure. The inner cavity 111 of the bottom plate 1 is connected to the bottom of the lower fitting groove 11. When the sliding seat 42 is driven to slide to drive the flexible pressure block 43 to move and squeeze the lower end of the web plate 2, the flexible pressure block... 43 is driven to contact the web plate 2 and deform to compress the internal space of the deformation cavity 433. At this time, the air in the deformation cavity 433 can be injected into the inner cavity 111 through the connecting groove 112, thereby generating high pressure in the inner cavity 111 to blow out and remove the debris or dust that is adhered or stuck between the lower end of the web plate 2 and the lower fitting groove 11. This avoids the problem of debris or dust accumulating at the lower end of the web plate 2, which would cause damage or corrosion to the web plate 2, and improves the protection of the web plate 2.

[0026] As a further embodiment of this utility model, it also includes a vertical plate 6 and a locking bolt 7. A top groove 32 is provided on the top plate 3, and an installation groove 14 is provided on the bottom plate 1. The upper end of the vertical plate 6 is fitted into the top groove 32, and the lower end of the vertical plate 6 is fixed in the installation groove 14 by the locking bolt 7 so that the vertical plate 6 is located between the web plates 2.

[0027] Specifically, such as Figure 1 As shown, a through hole is provided at the lower end of the vertical plate 6, and a threaded mounting hole 141 is provided in the mounting groove 14. The locking bolt 7 can be installed in the threaded mounting hole 141 through the through hole, so that the locking bolt 7 fixes the lower end of the vertical plate 6 in the mounting groove 14, and the upper end of the vertical plate 6 is fitted into the top groove 32 to realize the installation of the vertical plate 6 between the bottom plate 1 and the top plate 3, thereby further improving the support and fixing stability of the top plate 3. At this time, the vertical plate 6 is located between the web plates 2 to roughly cover and protect the drive shaft 41, the sliding seat 42 and the flexible pressure block 43, thereby improving safety.

[0028] As a further embodiment of this utility model, the vertical plate 6 is symmetrically provided with protrusions 61, and the flexible pressure block 43 is symmetrically linearly arrayed with contact grooves 432. The vertical plate 6 is installed on the bottom plate 1 and the top plate 3 by locking bolts 7 so that the vertical plate 6 abuts against the side of the flexible pressure block 43. The sliding seat 42 is driven to drive the flexible pressure block 43 to slide so that a number of contact grooves 432 successively scrape and pass over the protrusions 61.

[0029] Specifically, when the vertical plate 6 is installed on the bottom plate 1 and the top plate 3 by the locking bolts 7 so that the vertical plate 6 abuts against the side of the flexible pressure block 43, the protrusion 61 abuts against the contact groove 432. When the drive shaft 41 rotates to drive the sliding seat 42 and the flexible pressure block 43 to slide, as the flexible pressure block 43 slides closer to the lower end of the extrusion web 2, several contact grooves 432 successively scrape and pass over the protrusion 61, so that vibration is generated on the flexible pressure block 43. This allows the flexible pressure block 43 to be vibrated during the sliding process, so that the abutment part 431 fits more closely to the surface of the web 2, thereby further improving the support of the web 2.

[0030] As a further embodiment provided in this utility model, a guide groove 142 is provided on the mounting groove 14.

[0031] Specifically, such as Figure 3 As shown, a guide groove 142 is provided on the mounting groove 14. After the web plate 2, top plate 3 and bottom plate 1 are assembled to form a box girder structure, the sliding seat 42 and flexible pressure block 43 are first driven by the drive shaft 41 to slide and support the lower end of the web plate 2. Then, the vertical plate 6 is tilted so that the upper end of the vertical plate 6 is embedded in the top groove 32 of the top plate 3. Then, the lower end of the vertical plate 6 is moved to gradually enter the mounting groove 14 through the guide groove 142. Finally, the lower end of the vertical plate 6 is fixed in the mounting groove 14 by the locking bolt 7 to complete the overall assembly, which is convenient for actual assembly and use.

[0032] As a further embodiment provided in this utility model, a support block 5 is symmetrically arranged on the base plate 1. The support block 5 abuts against the lower vertical end of the web plate 2 on the outer side of the box girder structure, and an embedded part 51 is provided on the support block 5. The embedded part 51 abuts against the support groove 13 symmetrically opened on the base plate 1.

[0033] Specifically, support blocks 5 are symmetrically arranged on the base plate 1. The support blocks 5 abut against the lower vertical end of the web 2 on the outer side of the box girder structure, and the support blocks 5 are provided with embedded parts 51. The embedded parts 51 abut against the support grooves 13 symmetrically opened on the base plate 1. The support blocks 5 support the lower vertical end of the web 2 on the outer side of the box girder structure, thereby further improving the lateral deformation resistance of the lower end of the web 2 and further avoiding the tilting problem of the top plate 3 caused by the deformation of the floating plate 2. The embedded parts 51 are embedded in the support grooves 13 of the base plate 1 to improve the support of the support blocks 5 for the web 2. The support blocks 5 can be made of rubber.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A prefabricated corrugated steel web continuous composite beam, characterized in that, The structure includes a bottom plate (1) and a top plate (3). A web plate (2) is symmetrically and obliquely arranged between the bottom plate (1) and the top plate (3) to form a box girder structure. A drive shaft (41) is axially rotatably arranged on the bottom plate (1). A sliding seat (42) is symmetrically and slidably arranged on the bottom plate (1). A flexible pressure block (43) is arranged on the sliding seat (42). The sliding seat (42) is threadedly engaged with the threaded column (412) arranged on the drive shaft (41). The drive shaft (41) is driven to rotate and drive the two sliding seats (42) to slide away from each other. The contact part (431) of the flexible pressure block (43) deforms and abuts against the vertically lower end of the web plate (2) on the inner side of the box girder structure.

2. The prefabricated corrugated steel web continuous composite beam according to claim 1, characterized in that, The bottom plate (1) has a lower fitting groove (11), the top plate (3) has an upper fitting groove (31), the two ends of the web plate (2) are respectively inserted into the lower fitting groove (11) and the upper fitting groove (31), the bottom plate (1) also has an inner cavity (111) and a connecting groove (112), the flexible pressure block (43) has a deformation cavity (433), the inner cavity (111) is connected to the lower fitting groove (11), the first end of the connecting groove (112) is connected to the inner cavity (111), and the second end faces the deformation cavity (433).

3. The prefabricated corrugated steel web continuous composite beam according to claim 2, characterized in that, It also includes a vertical plate (6) and a locking bolt (7). The top plate (3) has a top groove (32), and the bottom plate (1) has an installation groove (14). The upper end of the vertical plate (6) is fitted into the top groove (32), and the lower end of the vertical plate (6) is fixed in the installation groove (14) by the locking bolt (7) so that the vertical plate (6) is located between the web plates (2).

4. The prefabricated corrugated steel web continuous composite beam according to claim 3, characterized in that, The vertical plate (6) is symmetrically provided with protrusions (61), and the flexible pressure block (43) is symmetrically linearly arrayed with contact grooves (432). The vertical plate (6) is installed on the bottom plate (1) and the top plate (3) by locking bolts (7) so that the vertical plate (6) abuts against the side of the flexible pressure block (43). The sliding seat (42) is driven to make the flexible pressure block (43) slide so that a number of contact grooves (432) successively scrape and pass over the protrusions (61).

5. A prefabricated corrugated steel web continuous composite beam according to claim 4, characterized in that, The mounting slot (14) is provided with a guide slot (142).

6. The prefabricated corrugated steel web continuous composite beam according to claim 1, characterized in that, Support blocks (5) are symmetrically arranged on the base plate (1). The support blocks (5) abut against the lower vertical end of the web plate (2) on the outer side of the box girder structure. An embedded part (51) is provided on the support block (5). The embedded part (51) abuts against the support groove (13) symmetrically opened on the base plate (1).

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