Connecting structure of prefabricated concrete stand column and steel cover beam
By constructing a connection between precast concrete columns and steel cap beams in the factory, and welding the bottom plate of the steel cap beam, the top steel plate of the column, the steel plate with a haunch, and the steel structure shell together, and using perforated steel plates and cylindrical head weld studs to connect with the concrete, the problems of low construction efficiency and difficulty in ensuring quality in the existing technology are solved, and a highly efficient and simple connection effect is achieved.
Patent Information
- Application Number
- CN202422682348.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-05
AI Technical Summary
The existing connection structure between precast concrete columns and steel cap beams affects construction efficiency and makes it difficult to guarantee quality. The reliability of the connection section is limited by the technical level of the construction unit.
The steel cap beam bottom plate, column top steel plate, steel plate haunches, and steel structure shell are welded together. They are connected to the precast concrete columns through perforated steel plates, cylindrical head weld studs, and the first auxiliary steel bars. The second auxiliary steel bars are welded to the main bars of the precast columns. The structure is prefabricated in the factory, and only welding is performed on site.
This achieves both the effectiveness of the connection section and the simplicity of construction, ensuring construction quality and efficiency.
Smart Images
Figure CN223576927U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a connecting structure, especially a connecting structure of a prefabricated concrete stand column and a steel cover beam. BACKGROUND
[0002] The steel cover beam is widely applied in the prefabricated assembly of the urban viaduct beam large-span cover beam with superior spanning capacity and lighter hoisting weight, and the connection between the steel cover beam and the lower prefabricated concrete stand column is the key point of the structure. SUMMARY
[0003] The utility model provides a connecting structure of a prefabricated concrete stand column and a steel cover beam, which can guarantee the effectiveness of the connecting section and has simple structure and convenient construction.
[0004] The utility model provides a connecting structure of a prefabricated concrete stand column and a steel cover beam, which includes a steel cover beam bottom plate, a stand column top steel plate, a steel plate haunch and a steel structure shell, the steel cover beam bottom plate and the stand column top steel plate are connected by welding, the stand column top steel plate and the steel plate haunch are connected with the steel structure shell by welding, the steel structure shell is welded with an opening steel plate, the steel structure shell is connected with the prefabricated concrete stand column through the opening steel plate, the cylindrical head welding nail and the first auxiliary steel bar passing through the opening steel plate, and the steel structure shell is connected with the prefabricated stand column main reinforcement through the second auxiliary steel bar.
[0005] Further, the openings on the opening steel plate are impact-formed round holes, oval holes or polygonal holes.
[0006] Further, the openings on the opening steel plate are arranged in two rows.
[0007] Further, the second auxiliary steel bar and the prefabricated stand column main reinforcement and the steel structure shell are welded on one side.
[0008] The connecting structure of the prefabricated concrete stand column and the steel cover beam has the advantages that the opening steel plate, the cylindrical head welding nail and the first auxiliary steel bar passing through the opening steel plate are connected with the concrete, thereby guaranteeing the effectiveness of the connecting section, the connecting structure and the stand column are prefabricated in a factory, the steel cover beam bottom plate, the stand column top steel plate and the steel plate haunch are welded on site, and the construction is convenient. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1This is a schematic diagram of the elevation structure of the connection between the precast concrete column and the steel cap beam of this utility model.
[0010] Figure 2 This is a schematic diagram of the planar structure of the connection between the precast concrete column and the steel cap beam of this utility model;
[0011] Figure 3 This is a schematic diagram of the connection between the auxiliary steel bars and the main steel bars of the precast column in the connection structure of this utility model.
[0012] The diagram is marked as follows:
[0013] 1. Steel structure shell; 2. Perforated steel plate; 3. Cylindrical head weld studs; 4. First auxiliary reinforcement; 5. Steel plate with haunches; 6. Precast column main reinforcement; 7. Column top steel plate; 8. Second auxiliary reinforcement; 9. Steel cap beam bottom plate. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Figure 1 This is a schematic diagram of the elevation structure of the connection between the precast concrete column and the steel cap beam of this utility model. Figure 2 This is a schematic diagram of the planar structure of the connection between the precast concrete column and the steel cap beam of this utility model; Figure 3 This is a schematic diagram of the connection between the auxiliary steel bars and the main steel bars of the precast column in the connection structure of this utility model.
[0016] Please see Figure 1 , Figure 2 and Figure 3 The connection structure between the precast concrete column and the steel cap beam provided by this utility model includes a steel cap beam bottom plate 9, a column top steel plate 7, a steel plate armhole 5, and a steel structure shell 1. The steel cap beam bottom plate 9 and the column top steel plate 7 are welded together. The column top steel plate 7 and the steel plate armhole 5 are both welded together to the steel structure shell 1. The steel structure shell 1 is welded to a perforated steel plate 2, which serves as a reinforcement for the steel structure shell 1. Simultaneously, the steel structure shell 1 is connected to the concrete through the perforated steel plate 2, cylindrical head weld studs 3, and a first reinforcing bar 4 passing through the perforated steel plate, ensuring the effectiveness of the connection with the concrete. The precast column main reinforcement 6 is welded to the steel structure shell 1 through a second auxiliary reinforcing bar 8. The column top steel plate 7 requires grouting holes and ventilation holes; this part of the structure is precast in the factory along with the column. On-site welding of the steel cap beam bottom plate 9 to the column top steel plate 7, the steel plate armhole 5, and the steel structure shell 1 is convenient.
[0017] The connection structure between the precast concrete column and the steel cap beam provided by this utility model allows the openings on the perforated steel plate 2 to be punched into geometric shapes such as circles, ellipses, or polygons as needed. Two rows of openings are arranged to strengthen the connection between the steel structure and the concrete. The second auxiliary reinforcing bar 8 is welded to the main reinforcing bar 6 of the precast column and the steel structure shell 1 on one side, ensuring an effective connection between the main reinforcing bar 6 of the precast column and the steel structure shell 1. The welding of the bottom plate of the steel cap beam to the top steel plate 7 of the column and the haunch 5 of the steel plate all employs bevel penetration welding.
[0018] The connection structure between the precast concrete column and the steel cap beam provided by this utility model has the following advantages:
[0019] The connection structure between the precast concrete column and the steel cap beam of the present invention has the following advantages:
[0020] (1) All materials required for construction are ordinary building materials and do not require special preparation;
[0021] (2) All columns are prefabricated in the factory, ensuring construction quality.
[0022] (3) It has a simple structure and is convenient and quick to construct on site.
[0023] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.
Claims
1. A connecting structure of a precast concrete column and a steel bent cap, characterized by, The steel cover beam bottom plate (9), the column top steel plate (7), the steel plate haunch (5) and the steel structure shell (1) are connected by welding, and the column top steel plate (7) and the steel plate haunch (5) are connected with the steel structure shell (1) by welding; the steel structure shell (1) is connected with the perforated steel plate (2) by welding, and the steel structure shell (1) is connected with the prefabricated concrete column through the perforated steel plate (2), the cylindrical head welding nail (3) and the first auxiliary steel bar (4) penetrating through the perforated steel plate; the steel structure shell (1) is connected with the prefabricated column main reinforcement (6) through the second auxiliary steel bar (8).
2. The precast concrete column and steel bent cap connection of claim 1, wherein, The holes on the perforated steel plate (2) are impact-formed round holes, oval holes or polygonal holes.
3. The precast concrete column and steel bent cap connection of claim 1, wherein, The holes on the perforated steel plate (2) are arranged in two rows.
4. The precast concrete column-to-steel bent cap connection of claim 1, wherein, The second auxiliary steel bar (8) is single-sided welded with the prefabricated column main reinforcement (6) and the steel structure shell (1).