Connecting joint of concrete wall and concrete filled steel tubular column

Abstract

The utility model discloses a concrete wall and concrete-filled steel tubular column connecting node which comprises a concrete wall and a concrete-filled steel tubular column arranged on one side of the concrete wall, one end of the concrete-filled steel tubular column is embedded in the concrete wall, and a plurality of longitudinal connecting plates are fixedly arranged on the embedded side of the concrete-filled steel tubular column and the concrete wall at intervals. Transverse connecting plates are fixedly arranged at the two ends of the embedded side of the concrete filled steel tubular column; the longitudinal connecting plates are fixedly connected with stirrups of a concrete wall, and the transverse connecting plates are fixedly connected with transverse steel bars of the concrete wall. The joint can reliably connect the concrete wall and the concrete filled steel tubular column, does not influence the concrete fluidity during concrete pouring, improves the connection stability, and is worthy of popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of the connection construction between a concrete wall and a concrete-filled steel tube column, and particularly relates to a connection node between a concrete wall and a concrete-filled steel tube column. Background Technique

[0002] In recent years, China's infrastructure industry has developed rapidly, and many new challenges have been encountered during building construction, such as the treatment of connection nodes such as beam-column connections, beam-wall connections, and wall-column connections. There are not many domestic practices for the connection nodes between concrete shear walls and steel columns. However, according to the stress principle of shear walls and referring to the connection nodes between concrete beams and steel columns, a connection node scheme for concrete shear walls and steel columns is provided. Also, in order to better ensure that the concrete pouring can have better fluidity and be more dense after pouring, the existing scheme is to weld a full-length steel connection plate along the position of the horizontal steel bars in the shear wall on the side of the steel column. Although this method can connect the concrete wall and the concrete-filled steel tube column, the vertical steel connection plate set makes the fluidity of the concrete worse, so the shear-bearing capacity of the concrete shear wall obtained by pouring is poor. A connection node between a circular steel tube column and a concrete shear wall with the authorization announcement number of CN206591684U includes several spaced steel connection plates arranged on the outer side of the steel column. Each steel connection plate is also connected with horizontal shear steel bars, and the vertical length of each steel connection plate is 75 - 125 mm, and the distance between two adjacent steel connection plates is 150 - 250 mm. It is convenient for the concrete to flow so as to be poured densely, but the structural stability of the connection of this node is relatively poor. Content of the Utility Model

[0003] The purpose of the utility model is to provide a connection node between a concrete wall and a concrete-filled steel tube column. This node can reliably connect the concrete wall and the concrete-filled steel tube column, does not affect the fluidity of the concrete during pouring, improves the stability of the connection, and is worthy of popularization and application.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A connection node between a concrete wall and a concrete-filled steel tube column includes a concrete wall and a concrete-filled steel tube column arranged on one side of the concrete wall. One end of the concrete-filled steel tube column is embedded in the concrete wall. A plurality of longitudinal connection plates are fixedly arranged at intervals on the embedded side of the concrete-filled steel tube column and the concrete wall. Transverse connection plates are fixedly arranged at both ends of the embedded side of the concrete-filled steel tube column. The longitudinal connection plates are fixedly connected with the stirrups of the concrete wall, and the transverse connection plates are fixedly connected with the horizontal steel bars of the concrete wall.

[0006] Preferably, connection holes are arranged on the longitudinal connection plates, and one end of the stirrup is fixedly connected in the connection holes.

[0007] Preferably, multiple longitudinal connecting plates are arranged at intervals along the length direction of the concrete wall, and each longitudinal connecting plate corresponds to one of the stirrups.

[0008] Preferably, multiple longitudinal connecting plates are arranged at intervals along the height direction of the concrete wall, and each longitudinal connecting plate corresponds to one row of the transverse steel bars.

[0009] Preferably, an arc-shaped groove adapted to the transverse steel bars is provided on the transverse connecting plate, and the transverse steel bars are fixedly installed in the arc-shaped groove.

[0010] Preferably, the connection length between the transverse steel bars and the transverse connecting plate is not less than five times the diameter of the transverse steel bars.

[0011] In the present utility model, the steel tube concrete column and the steel bar structure of the concrete wall are fixedly connected. The transverse connecting plate is fixedly connected to the transverse steel bars that are disconnected at both ends, and multiple longitudinal connecting plates are fixedly connected to the corresponding stirrups. On the one hand, the steel tube concrete column and the concrete wall are fixedly connected, and on the other hand, the structural stability of the steel bar structure framework of the concrete wall is ensured, and the wall thickness and strength after pouring are guaranteed. The multiple longitudinal connecting plates are arranged at intervals, which does not affect the fluidity of the concrete during pouring. The arc-shaped groove provided on the transverse connecting plate increases the welding area with the transverse steel bars and improves the connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a top view schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is a sectional view schematic diagram of the connection between the transverse connecting plate and the transverse steel bars of the present utility model;

[0014] In the figure: 1, concrete wall; 2, steel tube concrete column; 3, longitudinal connecting plate; 4, transverse connecting plate; 5, arc-shaped groove; 10, transverse steel bar; 11, vertical steel bar; 12, stirrup. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following will further describe the present utility model with reference to the accompanying drawings:

[0016] As Figure 1 and Figure 2 shown, a connection node between a concrete wall and a steel tube concrete column includes a concrete wall 1 and a steel tube concrete column 2 fixedly arranged on one side of the concrete wall 1. The concrete wall 1 is composed of a steel bar framework and a concrete structure poured on the steel bar framework. The steel bar framework is composed of transverse steel bars 10, vertical steel bars 11, and stirrups 12 connecting the transverse steel bars 10 and the vertical steel bars 11. The steel tube concrete column 2 is composed of a circular steel tube and concrete poured in the circular steel tube.

[0017] One end side wall of the concrete-filled steel tube column 2 is fitted into the concrete wall 1. On the fitting side of the concrete-filled steel tube column 2 and the concrete wall 1, a plurality of longitudinal connecting plates 3 are fixedly arranged at intervals by welding. The longitudinal connecting plates 3 are fixedly connected to the stirrups 12 of the concrete wall 1 by welding. Specifically, connection holes are provided on the longitudinal connecting plates 3, and one end of the stirrup 12 is fixedly connected in the connection holes. The transverse reinforcement bars 10 or vertical reinforcement bars 11 are fixedly connected to the longitudinal connecting plates 3, ensuring the stability and accuracy of the steel bar framework size of the concrete wall 1, and enhancing the reliability and safety of the connection between the concrete wall 1 and the concrete-filled steel tube column 2. In a preferred embodiment, the plurality of longitudinal connecting plates 3 are arranged at intervals along the length direction of the concrete wall 1, and each longitudinal connecting plate 3 corresponds to one stirrup 12. The plurality of longitudinal connecting plates 3 are arranged at intervals along the height direction of the concrete wall 1, and each longitudinal connecting plate 3 corresponds to one row of transverse reinforcement bars 10. The longitudinal connecting plates 3 are arranged in an array manner, which does not affect the fluidity of the concrete pouring of the concrete wall 1 and ensures the shear resistance of the concrete wall 1. The longitudinal connecting plates 3 are rectangular or trapezoidal steel plates, and one end of the longitudinal connecting plates 3 is fixedly installed on the outer surface of the concrete-filled steel tube column 2 by welding.

[0018] At both ends of the fitting side of the concrete-filled steel tube column 2, transverse connecting plates 4 are fixedly arranged by welding; the transverse connecting plates 4 are fixedly connected to the transverse reinforcement bars 10 of the concrete wall 1 by welding. Specifically, arc-shaped grooves 5 adapted to the transverse reinforcement bars 10 are provided on the transverse connecting plates 4, and the transverse reinforcement bars 10 are fixedly installed in the arc-shaped grooves 5 by welding. The provided arc-shaped grooves 5 increase the contact area with the transverse reinforcement bars 10 and improve the connection strength after welding. The transverse reinforcement bars 10 of the concrete-filled steel tube column 2 that are interrupted and fitted are fixedly welded to the concrete-filled steel tube column 2, improving the tensile and shear resistance of the concrete wall 1 and the structural strength after the connection of the two. The connection length between the transverse reinforcement bars 10 and the transverse connecting plates 4 is not less than five times the diameter of the transverse reinforcement bars 10.

[0019] The above embodiments are only several descriptions of the concept and implementation of the present invention, and are not intended to limit it. Under the concept of the present invention, the technical solutions without substantial transformation are still within the protection scope.

Claims

1. A connection node between a concrete wall and a steel tube concrete column, comprising a concrete wall and a steel tube concrete column arranged on one side of the concrete wall, wherein one end of the steel tube concrete column is embedded in the concrete wall, and characterized in that: A plurality of longitudinal connecting plates are fixedly arranged at intervals on one side where the steel tube concrete column and the concrete wall are embedded, and transverse connecting plates are fixedly arranged at both ends of one side where the steel tube concrete column is embedded; the longitudinal connecting plates are fixedly connected to the stirrups of the concrete wall, and the transverse connecting plates are fixedly connected to the transverse steel bars of the concrete wall.

2. The connection node between concrete wall and concrete-filled steel tube column according to claim 1, characterized in that: A connecting hole is provided on the longitudinal connecting plate, and one end of the stirrup is fixedly connected in the connecting hole.

3. The connection node between a concrete wall and a concrete-filled steel tube column according to claim 1 or 2, characterized in that: A plurality of longitudinal connecting plates are arranged at intervals along the length direction of the concrete wall, and each longitudinal connecting plate corresponds to one stirrup.

4. The connection node between concrete wall and concrete-filled steel tube column according to claim 3, characterized in that: A plurality of longitudinal connecting plates are arranged at intervals along the height direction of the concrete wall, and each longitudinal connecting plate corresponds to a row of transverse steel bars.

5. The connection node between a concrete wall and a concrete-filled steel tube column according to claim 1 or 4, characterized in that: An arc groove matched with the transverse steel bar is arranged on the transverse connecting plate, and the transverse steel bar is fixedly installed in the arc groove.

6. The connection node between concrete wall and concrete-filled steel tube column according to claim 1, characterized in that: The connection length between the transverse reinforcement and the transverse connecting plate is not less than five times the diameter of the transverse reinforcement.

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