Bridge cast-in-place box girder cylindrical pier cross-core bracket device
By using embedded boxes and corbel assemblies in the construction of cast-in-place box girders of bridges, the problem of interference of I-beam corbels on steel bars was solved, the construction process was simplified, and the construction quality and equipment utilization rate were improved.
Patent Information
- Application Number
- CN202422715044.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-07
AI Technical Summary
In the construction of cast-in-place box girders of bridges, the cross-section of the I-beam corbels of the through-corbels is large, which can easily interfere with the steel bars of the cylindrical piers, making it difficult to ensure construction quality and increasing the difficulty.
Embedded boxes and corbel assemblies, including vertical beams, horizontal beams and stiffening ribs, are used as the main load-bearing structure to form small embedded boxes through welding and pouring to reduce interference with steel bars, and inclined pads and spring bars are used to improve stability.
It simplifies the construction process, reduces the construction difficulty, improves the construction quality, enhances the equipment utilization rate, and reduces the difficulty of post-processing.
Smart Images
Figure CN223433732U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge construction technical field, concretely is a kind of bridge cast-in-place box girder cylindrical pier core leg device. BACKGROUND
[0002] When bridge cast-in-place box girder is constructed, it is usually necessary to erect full-supporting frame, and the full-supporting frame requires very high ground, and it is necessary to set steps in complex mountainous terrain, and the steps also need to be protected, and it is also necessary to excavate original mountains in some mountainous areas and support the mountains. Therefore, the non-floor type support construction process is used to save the ground treatment, so that the support construction is not limited by region, terrain and geology, and the safety of support construction is ensured.
[0003] At present, the non-floor type support usually uses embedded core leg as the main bearing structure, and the core leg is usually made of double-spliced I-beam. When the reinforcement of the pier body is installed, the leg embedding box is embedded in the predetermined position of the pier body. After the pier body concrete is removed, the embedding box is exposed, and the core I-beam and the pad are installed to form the leg. When the embedding box is installed, the I-beam leg section is large, which easily interferes with the reinforcement of the cylindrical pier. Usually, the position of the cylindrical pier reinforcement needs to be moved, so that the construction quality of the pier column is not easy to ensure, and the construction difficulty is increased. UTILITY MODEL CONTENT
[0004] The utility model aims to provide a kind of bridge cast-in-place box girder cylindrical pier core leg device, by setting embedding box and leg assembly, it solves the problem that when the leg is installed in embedding box, the I-beam leg section is large, which easily interferes with the reinforcement of the cylindrical pier. Usually, the position of the cylindrical pier reinforcement needs to be moved, so that the construction quality of the pier column is not easy to ensure, and the construction difficulty is increased.
[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of bridge cast-in-place box girder cylindrical pier core leg device, including embedding box, the inside of embedding box is inserted with two leg assemblies, the surface of embedding box is poured with pier column, the inside of pier column is poured with reinforcement;
[0006] Two leg assemblies include vertical beam, the top and bottom of vertical beam are both welded with crossbeam, stiffened rib plate is welded between crossbeam, and hole is formed in both ends of crossbeam.
[0007] Preferably, two reinforcements are welded between the embedding box, and A pad is welded on the inner top wall of the embedding box.
[0008] Preferably, the bottom of the embedding box is welded with a support box, and the inside of the support box is fixedly connected with a spring seat.
[0009] Preferably, the spring seat is welded with a spring rib inside, and the top end of the spring rib is welded with a B pad plate.
[0010] Preferably, the B pad plate is welded with an inclined pad plate on the surface, and the A pad plate and the inclined pad plate are tightly abutted with the embedded box.
[0011] The utility model provides a kind of bridge cast-in-place box girder cylindrical pier core leg device, with the following beneficial effects:
[0012] When bridge cylindrical pier construction, only need to weld and fix the embedded box in the predetermined position on the reinforcement in pier column before pouring, then pouring can realize the installation and fixation of embedded box, then by depressing inclined pad plate and inserting leg assembly, it can be leg assembly as main load-bearing structure, in turn to set up I-beam main crossbeam, reinforced bailey beam, I-beam secondary crossbeam, full-frame support, I-beam main keel, square wood secondary keel, bamboo plywood form complete cast-in-place box girder support system, while the size of embedded box is reduced in the present application, weight is reduced, reduce the construction difficulty of leg embedding, simplify the construction procedure of bridge cylindrical pier embedded leg, and when subsequent removal, most components can be removed and recycled and pour in hollow position in pier column, reduce the influence on pier column and reinforcement, guarantee the construction quality of cylindrical pier, the hole left by cylindrical pier after leg removal is smaller, reduce the difficulty of later processing, greatly improve the utilization rate of equipment and the quality of guarantee pier column. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of embodiments or prior art. Obviously, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creative labor.
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 It is a structural split schematic diagram of the embedded box of the utility model;
[0016] Figure 3 It is a structural split schematic diagram of the leg assembly of the utility model;
[0017] Figure 4 It is a structural split schematic diagram of the pier column of the utility model.
[0018] Indicated in the figure:
[0019] 1. Embedded box; 2. Pier column; 3. Steel bar; 4. Vertical beam; 5. Horizontal beam; 6. Stiffening rib; 7. A pad; 8. Support box; 9. Spring seat; 10. Spring bar; 11. B pad; 12. Inclined pad. DETAILED DESCRIPTION
[0020] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.
[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, this embodiment proposes a through-corrugated bracket device for a cylindrical pier of a cast-in-situ box girder of a bridge, comprising an embedded box 1, two bracket assemblies inserted into the embedded box 1, a pier column 2 cast on the surface of the embedded box 1, and steel bars 3 cast inside the pier column 2. The embedded box 1 is made of 3mm thick steel plates welded together to form a hollow box body with a height of 606mm and a width of 210mm. The length is adjusted on-site according to actual use. The embedded box 1 is small in size and has little effect on the steel bars 3 in the pier column 2. Personnel can adjust the position of the steel bars 3 or weld the steel bars 3 to the embedded box 1 according to actual conditions.
[0023] The two corbel assemblies include a vertical beam 4, the top and bottom of the vertical beam 4 are welded with a horizontal beam 5, and stiffening ribs 6 are welded between the horizontal beams 5. Holes are opened at both ends of the horizontal beam 5. The width of the vertical beam 4 and the thickness of the horizontal beam 5 are both 30mm, the width of the horizontal beam 5 is 80mm, and the height of the vertical beam 4 is 490mm. After welding the two, an I-beam with a height of 550mm is formed as the main body of the corbel support. After use, the corbel assembly is taken out, and the hollow part of the pier 2 is poured with concrete of the same grade as the pier 2, and the protruding parts are polished to ensure the quality of the pier 2 and the aesthetics after forming.
[0024] Two steel bars 3 are welded between the embedded box 1, the inner top wall of the embedded box 1 is welded with an A backing plate 7, the bottom of the embedded box 1 is welded with a support box 8, the inside of the support box 8 is fixedly connected with a spring seat 9, the inside of the spring seat 9 is welded with a spring bar 10, the spring bar 10 is made of φ10mm round steel, the top end of the spring bar 10 is welded with a B backing plate 11, the surface of the B backing plate 11 is welded with an inclined backing plate 12, the A backing plate 7 and the inclined backing plate 12 are tightly fitted between the embedded box 1, the embedded box 1 is tightly fitted through the A backing plate 7 at the top and the inclined backing plate 12 on the surface of the B backing plate 11 at the bottom, the friction force is increased, so that the bracket assembly in the embedded box 1 is more stable after being inserted, and the deviation in the subsequent construction process is reduced.
[0025] Specifically, the cylindrical pier core bracket device for cast-in-place box girder of the bridge in use: when the cylindrical pier of the bridge is constructed, only the embedded box 1 needs to be welded and fixed at the predetermined position on the steel bar 3 in the pier 2 before pouring, and then pouring can realize the installation and fixation of the embedded box 1, and then the inclined backing plate 12 is pressed down and the bracket assembly is inserted, that is, the bracket assembly is used as the main bearing structure, and the I-beam main cross beam, the reinforced Bailey beam, the I-beam secondary cross beam, the full-frame support, the I-beam main keel, the square wood secondary keel and the bamboo plywood form a complete cast-in-place box girder support system, and the size of the embedded box 1 is reduced, the weight is reduced, the construction difficulty of the bracket embedding is reduced, the construction process of the cylindrical pier bracket embedding of the bridge is simplified, and when the subsequent removal is performed, most of the parts can be removed and recycled, and the hollow position in the pier 2 is poured, the influence on the pier 2 and the steel bar 3 is reduced, the construction quality of the cylindrical pier is ensured, the hole left by the cylindrical pier after the bracket is removed is small, the difficulty of the later treatment is reduced, the utilization rate of the equipment is greatly improved, and the quality of the pier 2 is guaranteed.
[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A bridge cast-in-situ box girder cylindrical pier through-corrugated device, comprising an embedded box (1), characterized in that: Two bracket assemblies are inserted into the interior of the embedded box (1), a pier column (2) is cast on the surface of the embedded box (1), and a steel bar (3) is cast inside the pier column (2); The two bracket assemblies include vertical beams (4), the top and bottom of the vertical beams (4) are welded with cross beams (5), stiffening ribs (6) are welded between the cross beams (5), and holes are provided at both ends of the cross beams (5).
2. A bridge cast-in-situ box girder cylindrical pier through-corrugated bracket device according to claim 1, characterized in that: Two of the steel bars (3) are welded to the embedded box (1), and an A pad (7) is welded to the inner top wall of the embedded box (1).
3. A bridge cast-in-situ box girder cylindrical pier through-corrugated bracket device according to claim 2, characterized in that: The bottom welding machine of the embedded box (1) is provided with a support box (8), and the interior of the support box (8) is fixedly connected with a spring seat (9).
4. A bridge cast-in-situ box girder cylindrical pier through-corrugated bracket device according to claim 3, characterized in that: A spring rib (10) is welded inside the spring seat (9), and a B pad (11) is welded at the top end of the spring rib (10).
5. A bridge cast-in-situ box girder cylindrical pier through-corrugated bracket device according to claim 4, characterized in that: An inclined pad (12) is welded to the upper surface of the B pad (11), and the A pad (7) and the inclined pad (12) are in tight contact with the embedded box (1).