Cast-in-place box girder 0 # block steel shoe corbel bracket formwork system

Abstract

The utility model relates to a cast-in-place box girder 0 # block steel shoe bracket bracket formwork system which comprises a pier column, a reserving device, a bracket system and a formwork used for pouring a 0 # block box girder. The reserving device comprises a plurality of embedded screws embedded in the pier column, the two ends of each embedded screw extend out of the pier column, and embedded steel plates are arranged at the junctions of the embedded screws and the outer surface of the pier column. After pier column construction is completed, a bracket system is installed, the bracket system comprises steel shoe brackets and a bracket structure, and the steel shoe brackets are connected to the two ends of the embedded screw; the bracket structure comprises a bracket vertical support, a bracket inclined support and a main beam, the bracket vertical support and the bracket inclined support are respectively connected with a steel shoe bracket on the pier column, the bracket vertical support and the pier column are arranged in parallel, the main beam is arranged at the upper end of the bracket vertical support, and the template is supported through the bracket structure. The device is convenient for constructors to assemble and disassemble on a construction site, the construction efficiency is improved, the construction period is shortened, and the construction cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of bridge engineering construction technology, specifically relating to a steel boot bracket formwork system for the construction of the No. 0 block of a cast-in-place box girder. This system provides key support and forming structure for the casting of the No. 0 block box girder during the bridge construction process. Background Technology

[0002] In traditional cast-in-place box girder 0# block construction, problems such as insufficient stability of the bracket system, difficulty in ensuring the accuracy of formwork installation, and unreliable connection with piers are frequently encountered. For example, some bracket systems are prone to deformation or even collapse under large construction loads, leading to construction safety accidents and quality problems; during formwork installation, due to unreasonable support structures, it is difficult to accurately position the formwork, affecting the dimensional accuracy and appearance quality of the box girder; if the connection method between the pier and the bracket is unreasonable, it may loosen during construction, failing to effectively transfer loads. These problems restrict the efficiency and quality of bridge construction, urgently requiring a more reliable and efficient cast-in-place box girder 0# block construction system. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned problems in the existing technology by providing a formwork system for the steel boot bracket of the No. 0 block of a cast-in-place box girder.

[0004] To achieve the above-mentioned application objectives, this utility model adopts the following technical solution: a cast-in-place box girder 0# block steel boot bracket formwork system, including a pier column, a reserved device, a bracket system, and a formwork for casting the 0# block box girder; the reserved device includes multiple pre-embedded screws embedded in the pier column, with both ends of the pre-embedded screws extending out of the pier column, and a pre-embedded steel plate provided at the junction of the pre-embedded screws and the outer surface of the pier column;

[0005] After the pier construction is completed, a bracket system is installed. The bracket system includes steel shoe brackets and a bracket structure. The steel shoe brackets are connected to both ends of the pre-embedded bolts. The bracket structure includes bracket uprights, bracket diagonal braces, and a main beam. The bracket uprights and bracket diagonal braces are connected to the steel shoe brackets on the pier. The bracket uprights are set parallel to the pier. The main beam is set at the upper end of the bracket uprights. The bracket uprights, bracket diagonal braces, and main beam are connected to form a triangular structure, which supports the formwork.

[0006] Preferably, the pre-embedded screw is connected with anchoring hooks to enhance the connection strength between the pre-embedded screw and the pier column.

[0007] Preferably, the template has a support bracket installed on its side.

[0008] Preferably, the embedded steel plate and the embedded screw are connected by bolts.

[0009] Preferably, the pre-embedded screw passes through the steel boot bracket and makes the steel boot bracket fit tightly against the pre-embedded steel plate on the pier column. The two ends of the pre-embedded screw are anchoring ends, and the anchoring ends of the pre-embedded screw are connected with washers and nuts, which are used to fix the steel boot bracket.

[0010] Preferably, distribution beams, trusses, and tie beams are installed sequentially on the main beam, with the formwork installed above the tie beams.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1) The pre-embedded bolts in the reserved device work together with the anchor hooks and the pre-embedded steel plates. The anchor hooks enhance the connection strength between the pre-embedded steel plates and the pier, making the connection between the entire bracket system and the pier stable. This effectively resists various loads during construction, prevents displacement and loosening, and greatly improves construction safety.

[0013] 2) Precise template positioning: Through the hierarchical structure of main beam-distribution beam-truss-rib beam, the rib beam precisely supports the bottom of the template, and the bracket supports the sides of the template, providing all-round and stable support for the template. This allows the template to maintain a precise position during concrete pouring, thereby ensuring the dimensional accuracy and appearance quality of the cast-in-place box girder 0# block and reducing later repair and rectification work.

[0014] 3) Most components are connected by bolts, with pre-embedded screws connected to steel boot brackets and pre-embedded steel plates. This connection method facilitates installation and disassembly by construction personnel on the construction site, improves construction efficiency, shortens the construction cycle, and reduces construction costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 Schematic diagram of the installation of the 0# block steel boot bracket formwork system;

[0017] Figure 2 A detailed schematic diagram of the pre-embedded tie system for the steel boot bracket.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] In the diagram: 1. Pier column; 2. Box girder #0; 3. Embedded bolt; 4. Anchor hook bar; 5. Embedded steel plate; 6. Shim; 7. Steel shoe bracket; 8. Bracket support; 9. Bracket diagonal brace; 10. Main beam; 11. Distribution beam; 12. Truss; 13. Beam; 14. Support; 15. Formwork. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0021] Please see Figure 1-2 As shown, this embodiment provides a cast-in-place box girder 0# block steel boot bracket formwork system, including pier column 1, reserved device, bracket system, and formwork 15. Formwork 15 is used for casting 0# block box girder 2.

[0022] Before the pier column 1 is poured, a pre-installed device is installed. The pre-installed device includes multiple pre-embedded screw rods 3 embedded in the pier column 1. Anchor hooks 4 are connected to the pre-embedded screw rods 3 to enhance the connection strength between the pre-embedded screw rods 3 and the pier column 1. The two ends of the pre-embedded screw rods 3 extend out of the pier column 1. A pre-embedded steel plate 5 is provided at the junction of the pre-embedded screw rods 3 and the outer surface of the pier column 1. The pre-embedded steel plate 5 is connected to the pre-embedded screw rods 3 by bolts. The pre-embedded steel plate 5 is pre-embedded in the pier column 1 to provide a connection foundation for the subsequent installation of the steel boot bracket 7.

[0023] After the pier 1 is constructed, a bracket system is installed. The bracket system includes steel shoe brackets 7 and a bracket structure. The steel shoe brackets 7 are connected to both ends of the pre-embedded bolts 3. The pre-embedded bolts 3 pass through the steel shoe brackets 7 and make the steel shoe brackets 7 fit tightly against the pre-embedded steel plates 5 on the pier 1. The two ends of the pre-embedded bolts 3 are anchoring ends, and the anchoring ends of the pre-embedded bolts 3 are connected to washers 6 and nuts, which fix the steel shoe brackets 7. The steel shoe brackets 7 serve as the support points of the bracket structure. The bracket structure includes bracket uprights 8, bracket diagonal braces 9, and main beams. 10. The bracket support 8, bracket diagonal brace 9, and main beam 10 are connected to form a triangular structure. The bracket support 8 and bracket diagonal brace 9 are respectively connected to the steel boot bracket 7 on the pier column 1. The bracket support 8 is set parallel to the pier column 1. The main beam 10 is set at the upper end of the bracket support 8. The bracket support 8 plays the role of supporting the main beam 10 and transferring the load above the main beam 10 to the pier column 1. The bracket support 8 and bracket diagonal brace 9 together form a support structure, which plays the role of supporting the main beam 10. The formwork 15 is supported through the bracket structure.

[0024] Among them, the main beam 10 is equipped with a distribution beam 11, a truss 12, and a purlin 13 in sequence. The template 15 is installed on the top of the purlin 13, and the purlin 13 supports the bottom of the template 15. At the same time, a bracket 14 is installed on the side of the template 15 to support the side of the template 15.

[0025] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A cast-in-place box girder 0# block steel shoe bracket support formwork system, characterized in that, The application relates to a pier column (1), a reserving device, a bracket system and a formwork (15) for pouring a 0# block box girder (2); the reserving device comprises a plurality of embedded screw rods (3) embedded on the pier column (1), the two ends of the embedded screw rods (3) protrude from the pier column (1), and the embedded screw rods (3) are provided with embedded steel plates (5) at the junctions with the outer surfaces of the pier column (1). The bracket system is installed after the pier column (1) is constructed, and the bracket system comprises steel shoe brackets (7) and a bracket structure; the steel shoe brackets (7) are connected to the two ends of the embedded screw rods (3); the bracket structure comprises bracket vertical supports (8), bracket inclined supports (9) and a main beam (10); the bracket vertical supports (8) and the bracket inclined supports (9) are connected to the steel shoe brackets (7) on the pier column (1); the bracket vertical supports (8) are arranged in parallel with the pier column (1); the main beam (10) is arranged at the upper end of the bracket vertical supports (8); the bracket vertical supports (8), the bracket inclined supports (9) and the main beam (10) are connected to form a triangular structure, and the formwork (15) is supported by the bracket structure.

2. The cast-in-place box girder 0# block steel shoe corbel bracket formwork system according to claim 1, characterized in that, The embedded screw rods (3) are connected with anchoring hook rods (4) to enhance the connecting strength between the embedded screw rods (3) and the pier column (1).

3. The cast-in-place box girder 0# block steel shoe corbel bracket formwork system according to claim 1, characterized in that, The side surface of the formwork (15) is provided with a support (14).

4. The cast-in-place box girder 0# block steel shoe corbel bracket formwork system according to claim 1, characterized in that, The embedded steel plates (5) are connected with the embedded screw rods (3) through bolts.

5. The cast-in-place box girder 0# block steel shoe corbel bracket formwork system according to claim 1, characterized in that, The embedded screw rods (3) pass through the steel shoe brackets (7) and make the steel shoe brackets (7) tightly adhere to the embedded steel plates (5) on the pier column (1); the two ends of the embedded screw rods (3) are anchoring ends; the anchoring ends of the embedded screw rods (3) are connected with washers (6) and nuts; the steel shoe brackets (7) are fixed through the washers (6) and the nuts.

6. The cast-in-place box girder 0# block steel shoe corbel bracket formwork system according to claim 1, characterized in that, The main beam (10) is sequentially provided with a distribution beam (11), a truss (12) and a joist (13); the formwork (15) is arranged above the joist (13).

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