Column-penetration beam type steel pipe concrete joint connecting structure

Abstract

The utility model provides a kind of column penetrates beam type steel pipe concrete node connecting structure, including steel ring beam, steel column, connecting stiffened plate and structural steel plate, the cross section of the steel ring beam and the steel column is circular, the steel ring beam and the steel column connection position form through joint, the steel column and the steel ring beam form the connecting mode of orthogonal type.The scheme is directly through orthogonal intersecting connection mode, connecting stiffened plate is inserted steel ring beam and is provided with ear plate connecting stiffened plate to pull rod, forms clear effective bending and shear force transmission path, significantly enhances the rigidity and bearing capacity of node core area, the scheme is through the setting of connecting stiffened plate and its outside ear plate cooperation stiffened rod, effectively resist the bending moment of node area, reduce deformation, while the baffle inside the steel ring beam enhances the local rigidity of ring beam itself, and then make overall structure work cooperatively, and the overall performance of node is superior.

Description

Technical Field

[0001] This utility model relates to the field of column-beam type steel pipe technology, specifically a column-beam type steel pipe concrete joint connection structure. Background Technology

[0002] Concrete-tube steel is a high-strength, high-performance structural material and an efficient construction technology, widely used in high-rise buildings, long-span arch bridges, and underground structures. Due to its excellent technical and economic benefits, concrete-tube steel has also been successfully applied in long-span spatial steel structures.

[0003] The spoke-type suspension structure has a tension ring at the center of the plane and a compression ring on the outer ring. One end of the cable is anchored to the central ring, and the other end is anchored to the outer ring beam. Under the action of horizontal tension in the cable, the outer ring is compressed, and the inner ring is pulled, forming a self-balancing system consisting of the inner ring, the suspension cable, and the outer ring.

[0004] Concrete-tube steel frames have high load-bearing capacity and good plasticity and toughness. They can serve as a connecting hub between the upper large-span roof and the lower reinforced concrete structure to effectively transfer roof loads and enhance the spatial stability of the structure. In addition, concrete-tube steel frames can be used as a special type of steel structure component, which has the characteristics of simple and reliable connection with other components and flexible layout.

[0005] With the continuous emergence of new spatial steel structure systems, the structural system of steel-concrete composite structures, as rigid supports for large-span roofs, is also constantly being innovated. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a column-beam type steel tube concrete joint connection structure with a simple appearance and reasonable stress distribution, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a column-beam type steel-concrete composite joint connection structure, comprising a steel ring beam, a steel column, a connecting stiffener, and a structural steel plate. The cross-sections of the steel ring beam and the steel column are circular. The connection position between the steel ring beam and the steel column forms a through node. The steel column and the steel ring beam form an orthogonal connection. The connecting stiffener is inserted into the steel ring beam and the steel column. The structural steel plate is located at the end of the steel ring beam and has no holes on its surface.

[0008] Preferably, the steel ring beam extends outward on both sides, the steel ring beam is connected to the steel ring beam bracket, the outward extension length is equal to the diameter of the steel column, and a partition is provided inside the steel ring beam.

[0009] Preferably, the diameter of the steel column is smaller than that of the steel ring beam, the steel columns are intersectingly connected to the steel ring beam, the steel columns are connected to the steel ring beam brackets on the upper and lower sides of the nodes, and no partitions are set in the straight section of the steel column to facilitate the flow and compaction of concrete.

[0010] Preferably, the center of the connecting stiffener node is horizontally connected to the steel ring beam, the connecting stiffener is vertically inserted into the steel ring beam, and a connecting lug is provided on the outer side of the connecting stiffener. The connecting lug is used to connect with the stiffening tie rod. By applying tension or providing constraints, the bending bearing capacity and stiffness of the node are significantly improved, the stress distribution in the node area is optimized, and deformation is reduced.

[0011] Preferably, the surface of the structural steel plate is not perforated, and the structural steel plate is set on the corbel of the steel ring beam. The interface between the structural steel plate and the steel ring beam is directly set at an appropriate distance so as not to affect the butt welding construction, thereby ensuring the welding space and welding quality of the subsequent butt weld and avoiding welding interference.

[0012] Preferably, the structural holes are divided into grouting holes and venting holes. The structural holes are respectively located inside and outside the steel ring beam and the steel column. The diameter of the grouting holes ensures that concrete can be directly poured in, and the diameter of the venting holes can be adjusted adaptively.

[0013] This utility model provides a column-through-beam type steel tube concrete joint connection structure. It has the following beneficial effects:

[0014] 1. This scheme directly connects the stiffening plates by inserting them into the steel ring beam and setting ear plates to connect the stiffening tie rods, thus forming a clear and effective force transmission path for bending and shear resistance, which significantly enhances the stiffness and bearing capacity of the core area of ​​the node.

[0015] 2. This scheme effectively resists the bending moment in the node area and reduces deformation by connecting the stiffening plate and its outer ear plate in conjunction with the stiffening tie rod. At the same time, the partition plate set inside the steel ring beam enhances the local stiffness of the ring beam itself, thereby enabling the overall structure to work together and the overall performance of the node to be superior.

[0016] 3. This scheme, through the design of straight steel column sections without diaphragms, the arrangement of structural holes, and the use of mechanical vibration for the steel ring beam, ensures that the core area concrete can be smoothly filled and reach a dense state, thus guaranteeing the full play of the combined effect of steel-concrete composite. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0019] In the diagram: 101, steel ring beam; 102, steel column; 103, connecting stiffener; 104, structural steel plate; 105, structural hole; 106, connecting lug plate. Detailed Implementation

[0020] This utility model embodiment provides a column-through-beam type steel tube concrete joint connection structure, such as... Figure 1-2 As shown, it includes a steel ring beam 101, a steel column 102, a connecting stiffener 103, and a structural steel plate 104. The cross-sections of the steel ring beam 101 and the steel column 102 are circular. The connection position between the steel ring beam 101 and the steel column 102 forms a through node. The steel column 102 and the steel ring beam 101 form an orthogonal connection. The connecting stiffener 103 is inserted into the steel ring beam 101 and the steel column 102. The structural steel plate 104 is located at the end of the steel ring beam 101. The surface of the structural steel plate 104 is free of holes.

[0021] Furthermore, the steel ring beam 101 extends outward on both sides, and the steel ring beam 101 is connected to the steel ring beam bracket. The outward extension length is equal to the diameter of the steel column 102, and the steel ring beam 101 is equipped with a partition.

[0022] Furthermore, the diameter of the steel column 102 is smaller than that of the steel ring beam 101. The steel column 102 is intersectingly connected to the steel ring beam 101. The steel column 102 is connected to the steel ring beam bracket on the upper and lower sides of the node. No partition is set in the straight section of the steel column 102 to facilitate the flow and compaction of concrete.

[0023] Furthermore, the central part of the connecting stiffening plate 103 node is horizontally connected to the steel ring beam 101, and the connecting stiffening plate 103 is vertically inserted into the steel ring beam 101. The connecting stiffening plate 103 is provided with a connecting ear plate 106 on its outer side. The connecting ear plate 106 is used to connect with the stiffening tie rod. By applying tension or providing constraints, the bending bearing capacity and stiffness of the node are significantly improved, the stress distribution in the node area is optimized, and deformation is reduced.

[0024] Furthermore, the surface of the structural steel plate 104 is not perforated. The structural steel plate 104 is set on the steel ring beam bracket of the steel ring beam 101. The interface between the structural steel plate 104 and the steel ring beam 101 is directly set at an appropriate distance so as not to affect the butt welding construction, thereby ensuring the welding space and welding quality of the subsequent butt weld and avoiding welding interference.

[0025] Furthermore, the structural hole 105 is divided into a grouting hole and a venting hole. The structural holes 105 are respectively located inside and outside the steel ring beam 101 and the steel column 102. The diameter of the grouting hole ensures that concrete can be directly poured in, and the diameter of the venting hole can be adjusted adaptively.

[0026] It should be further explained that the construction holes can be set in the steel column tube wall, the steel ring beam tube wall, and the partition plate of the node core area to ensure that the gas in the internal cavity can be effectively discharged during concrete pouring and that the concrete can be filled densely.

[0027] The usage method of this solution is as follows:

[0028] S1. Prioritize pouring concrete inside steel pipe column 102. Use high-throw self-compacting concrete technology for pouring. Insert a pouring guide pipe through the grouting hole at the bottom of steel column 102, utilizing the kinetic energy generated by the concrete's own weight falling from a high position to achieve self-leveling and self-compacting. Closely observe the venting situation at the top vent. When the vent overflows with full cement slurry and no air bubbles, it indicates that the concrete inside this section of the column is basically filled. Stop pouring and temporarily seal the grouting hole. Pour concrete section by section upwards until the top of the column is reached. During the pouring process, a light vibration can be used on the outside of the column using an immersion vibrator.

[0029] S2. After the concrete inside the steel column 102 reaches a certain strength, the concrete inside the steel ring beam 101 is poured. Pouring is done through the grouting holes located at the bottom of the steel ring beam 101. Since the steel ring beam 101 is mostly horizontal or inclined, mechanical vibration is mainly used to ensure the compactness of the concrete. Attached vibrators are arranged on the top and sides of the steel ring beam 101, and during the pouring process, immersion vibrators are used to vibrate the interior through the grouting holes or venting holes as needed. Similarly, the overflow and venting of grout from the top venting holes are closely observed to ensure that the concrete inside the ring beam is densely filled.

[0030] S3. After all parts of the concrete have been poured and cured to the specified strength, all structural holes 105 shall be reliably welded and sealed with matching sealing plates to complete the node construction.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A column-beam type steel-concrete composite joint connection structure, comprising a steel ring beam (101), a steel column (102), a connecting stiffener (103), and a structural steel plate (104), characterized in that: The cross-sections of the steel ring beam (101) and the steel column (102) are circular. The connection position of the steel ring beam (101) and the steel column (102) forms a through node, which is an orthogonal connection between the steel column (102) and the steel ring beam (101). The connecting stiffener (103) is inserted into the steel ring beam (101) and the steel column (102). The structural steel plate (104) is provided at the end of the steel ring beam (101), and the surface of the structural steel plate (104) is without holes.

2. The column-through-beam type steel-concrete composite joint connection structure according to claim 1, characterized in that: The steel ring beam (101) extends outward on both sides and is connected to the steel ring beam bracket. The outward extension length is equal to the diameter of the steel column (102). The steel ring beam (101) is equipped with a partition.

3. The column-through-beam type steel-concrete composite joint connection structure according to claim 2, characterized in that: The diameter of the steel column (102) is smaller than that of the steel ring beam (101). The steel column (102) is connected to the steel ring beam (101) through the steel ring beam. The steel column (102) is connected to the steel ring beam bracket on the upper and lower sides of the node. No partition is set in the straight section of the steel column (102).

4. The column-through-beam type steel-concrete composite joint connection structure according to claim 1, characterized in that: The center of the connecting stiffener (103) node is horizontally connected to the steel ring beam (101), and the connecting stiffener (103) is vertically inserted into the steel ring beam (101). The connecting stiffener (103) is provided with a connecting lug (106) on the outside, and the connecting lug (106) is used to connect with the stiffener tie rod.

5. The column-through-beam type steel-concrete composite joint connection structure according to claim 1, characterized in that: The surface of the structural steel plate (104) is not perforated. The structural steel plate (104) is set on the steel ring beam bracket of the steel ring beam (101). The interface between the structural steel plate (104) and the steel ring beam (101) is directly set at a suitable distance so as not to affect the butt welding construction.

6. The column-through-beam type steel-concrete composite joint connection structure according to claim 1, characterized in that: The steel ring beam (101) and the steel column (102) are respectively provided with structural holes (105) inside and outside. The structural holes (105) are divided into grouting holes and venting holes. The diameter of the grouting holes ensures that concrete can be directly poured in, and the diameter of the venting holes can be adjusted adaptively.

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