A construction connecting joint of a lower column pier and a concrete cushion

Abstract

The utility model discloses a construction connecting joint of lower column pier and concrete cushion layer, it includes a plurality of lower horizontal stirrups welded in the inner chamber of concrete cushion layer top, the top of lower horizontal stirrup is welded with a plurality of upper horizontal stirrup, lower horizontal stirrup is located the front and back two sides of concrete cushion layer inner chamber, upper horizontal stirrup is located the left and right sides of concrete cushion layer inner chamber, the middle axis department of concrete cushion layer top is provided with column longitudinal reinforcement, and the column longitudinal reinforcement is welded in the middle axis department of lower horizontal stirrup and upper horizontal stirrup top. The utility model discloses through lower horizontal stirrup, column longitudinal reinforcement and node stirrup fixed in the middle axis department of concrete cushion layer inner chamber top, through the cooperation of front vertical steel bars, horizontal stirrup no.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a construction connection node between a lower column pier and a concrete cushion layer. Background Technology

[0002] A column pier is an enlarged structure set below the bottom of a column. It can effectively diffuse the load transmitted by the column, enhance the bearing capacity and stability of the foundation, and is often used in conjunction with raft foundations. The structural safety is ensured through reasonable reinforcement. The concrete cushion layer is a thin layer laid under the foundation.

[0003] In building foundation construction, the lower column pier needs to bear the column load and spread it to the foundation, while the concrete cushion layer serves to level and protect the reinforcement. Currently, our construction suffers from uneven stress at the joint due to inaccurate control of the cushion layer elevation and improper anchoring of the lower column pier reinforcement and the cushion layer. Therefore, it is necessary to design a construction connection node between the lower column pier and the concrete cushion layer. The reinforcement cage controls the elevation of the joint between the cushion layer and the lower column pier to ensure the rationality of the foundation stress. By pre-embedded positioning bars and mortar base layer measures, the connection strength between the two is strengthened, the hidden dangers of hollowing and cracking at the joint surface are solved, and the overall bearing stability of the foundation is improved. Utility Model Content

[0004] The purpose of this utility model is to provide a construction connection node between the lower column pier and the concrete cushion layer, which has the advantages of strengthening the connection between the two through pre-embedded positioning bars and mortar base layer measures, solving the hidden dangers of hollowing and cracking of the joint surface, and improving the overall bearing stability of the foundation, so as to solve the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A construction connection node between a lower column pier and a concrete cushion layer includes multiple lower horizontal stirrups welded to the inner cavity of the top of the concrete cushion layer, multiple upper horizontal stirrups welded to the top of the lower horizontal stirrups, the lower horizontal stirrups being located on the front and rear sides of the inner cavity of the concrete cushion layer, the upper horizontal stirrups being located on the left and right sides of the inner cavity of the concrete cushion layer, a column longitudinal reinforcement is provided at the central axis of the top of the concrete cushion layer, the column longitudinal reinforcement is welded to the central axis of the top of the lower and upper horizontal stirrups, multiple front vertical reinforcements are provided at the bottom of the lower and upper horizontal stirrups, multiple rear vertical reinforcements are provided on the rear side of the multiple front vertical reinforcements, the front and rear vertical reinforcements are both embedded in the inner cavity of the concrete cushion layer, multiple horizontal stirrups I are welded to the surface of the front vertical reinforcements, multiple horizontal stirrups II are welded to the surface of the rear vertical reinforcements, the horizontal stirrups I and II are symmetrical, and diagonal bracing I is welded to the top of the front and rear vertical reinforcements.

[0006] Preferably, the surface of the column longitudinal reinforcement is fixedly connected with multiple node stirrups.

[0007] Preferably, multiple tie bars are welded to the surfaces of the two front vertical reinforcing bars and the two rear vertical reinforcing bars located on the rear side, and the tie bars are located at the top of the horizontal stirrup one and the horizontal stirrup two.

[0008] Preferably, the inner cavities of both horizontal stirrup one and horizontal stirrup two are provided with multiple transverse reinforcing bars. The two ends of the transverse reinforcing bars located on the front side are welded to the front vertical reinforcing bars, and the two ends of the transverse reinforcing bars located on the rear side are welded to the rear vertical reinforcing bars.

[0009] Preferably, two symmetrical reinforcing bars are welded to the surface of the plurality of transverse reinforcing bars, and the two ends of the reinforcing bars are welded to horizontal stirrup one and horizontal stirrup two.

[0010] Preferably, the bottom of the first diagonal brace is provided with a second diagonal brace, and the two ends of the second diagonal brace are respectively welded to the bottom of the front vertical steel bar and the rear vertical steel bar.

[0011] The beneficial effects of this utility model are: 1. This utility model uses horizontal stirrups, column longitudinal bars, and node stirrups to fix the concrete pad at the central axis of the top of the inner cavity. Through the combined use of the front vertical bars, horizontal stirrup one, and horizontal stirrup two, the diagonal bracing bar one is fixed on the top of the front and rear vertical bars, thereby making the interior of the concrete pad more solid. Finally, the connection node between the concrete pad and the column longitudinal bars is stable. This achieves the purpose of strengthening the connection strength between the two through pre-embedded positioning bars and mortar base layer measures, solving the hidden dangers of hollowing and cracking at the joint surface, and improving the overall bearing stability of the foundation. 2. By setting up tie bars, this utility model optimizes the connection form of steel bars, enhances the force transmission efficiency of local nodes, makes the load transmission more uniform and smooth, improves the overall rigidity and stability of the steel cage, and during the construction stage, it can suppress the displacement and deformation of horizontal stirrups one and two, ensure the formation of the steel cage, help the structural stress coordination, enhance crack resistance and bearing capacity, and lay a solid foundation for the overall project quality. 3. By setting the second diagonal brace, this utility model reinforces the bottom of the front and rear vertical steel bars, ensuring that the front and rear vertical steel bars are more stably embedded in the inner cavity of the concrete pad, and improving the stability of the connection between the front and rear vertical steel bars and the concrete pad and the column longitudinal reinforcement node. Attached Figure Description

[0012] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention. Figure 1 This is a front view schematic diagram of one embodiment of the present utility model; Figure 2This is a front view schematic diagram of one embodiment of the present utility model; Figure 3 This is a front cross-sectional view of one embodiment of the present invention; Figure 4 This is a three-dimensional schematic diagram of a reinforcement structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the anatomical structure of a reinforcement structure according to an embodiment of the present invention.

[0013] The attached diagram lists the components represented by each number as follows: 1. Concrete cushion layer; 2. Lower horizontal stirrups; 3. Upper horizontal stirrups; 4. Column longitudinal reinforcement; 5. Joint stirrups; 6. Front vertical reinforcement; 7. Rear vertical reinforcement; 8. Horizontal stirrup one; 9. Horizontal stirrup two; 10. Tie bars; 11. Horizontal reinforcement; 12. Reinforcing bars; 13. Diagonal bracing bar one; 14. Diagonal bracing bar two. Detailed Implementation

[0014] In the following description, embodiments of the construction connection node between the lower column pier and the concrete cushion layer of this utility model will be described with reference to the accompanying drawings.

[0015] Figure 1-5This invention illustrates a construction connection node between a lower column pier and a concrete foundation layer according to an embodiment of the present invention. It includes multiple lower horizontal stirrups 2 welded to the inner cavity of the top of the concrete foundation layer 1. Multiple upper horizontal stirrups 3 are welded to the top of the lower horizontal stirrups 2. The lower horizontal stirrups 2 are located on the front and rear sides of the inner cavity of the concrete foundation layer 1, and the upper horizontal stirrups 3 are located on the left and right sides of the inner cavity of the concrete foundation layer 1. A column longitudinal reinforcement 4 is provided at the central axis of the top of the concrete foundation layer 1. Multiple node stirrups 5 are fixedly connected to the surface of the column longitudinal reinforcement 4. The column longitudinal reinforcement 4 is welded to the central axis of the top of the lower horizontal stirrups 2 and the upper horizontal stirrups 3. A [missing information - likely a typo, should be "underlying stirrups"]. Multiple front vertical reinforcing bars 6 are provided, and multiple rear vertical reinforcing bars 7 are provided behind the multiple front vertical reinforcing bars 6. Both the front vertical reinforcing bars 6 and the rear vertical reinforcing bars 7 are embedded in the inner cavity of the concrete cushion layer 1. Multiple horizontal stirrups 1 8 are welded to the surface of the front vertical reinforcing bars 6, and multiple horizontal stirrups 2 9 are welded to the surface of the rear vertical reinforcing bars 7. The horizontal stirrups 1 8 and 2 9 are symmetrical. Multiple tie bars 10 are welded to the surface of the two rear front vertical reinforcing bars 6 and the two front rear vertical reinforcing bars 7. The tie bars 10 are located at the top of the horizontal stirrups 1 8 and 2 9. Through the setting of tie bars 10, the tie bars 10 strengthen the reinforcement by optimizing the connection form of the reinforcing bars. The local node force transmission efficiency makes the load transfer more uniform and smooth, improving the overall stiffness and stability of the steel cage. During the construction phase, it can suppress the displacement and deformation of horizontal stirrups 1-8 and 2-9, ensuring the formation of the steel cage, helping the structural stress coordination, enhancing crack resistance and load-bearing capacity, and laying a solid foundation for the overall project quality. Multiple transverse steel bars 11 are set inside the cavities of horizontal stirrups 1-8 and 2-9. The two ends of the front transverse steel bars 11 are welded to the front vertical steel bar 6, and the two ends of the rear transverse steel bars 11 are welded to the rear vertical steel bar 7. Two symmetrical reinforcing bars 12 are welded to the surface of the multiple transverse steel bars 11. The two ends of 12 are welded to horizontal stirrup 18 and horizontal stirrup 29. The top of the front vertical steel bar 6 and the rear vertical steel bar 7 are welded with diagonal bracing bar 13. The bottom of the diagonal bracing bar 13 is provided with diagonal bracing bar 24. The two ends of the diagonal bracing bar 214 are welded to the bottom of the front vertical steel bar 6 and the rear vertical steel bar 7 respectively. The diagonal bracing bar 214 reinforces the bottom of the front vertical steel bar 6 and the rear vertical steel bar 7, ensuring that the front vertical steel bar 6 and the rear vertical steel bar 7 are more stably implanted into the inner cavity of the concrete pad 1, and improving the stability of the connection between the front vertical steel bar 6 and the rear vertical steel bar 7 and the joint of the column longitudinal reinforcement 4.

[0016] Working Principle: During construction, this utility model involves first pouring a concrete foundation 1. Multiple lower horizontal stirrups 2 are welded to the front and rear sides of the top inner cavity. Then, upper horizontal stirrups 3 are welded to the corresponding left and right sides of the top of the lower horizontal stirrups 2, constructing a horizontal steel reinforcement support frame. Next, at the top center axis of the concrete foundation 1, the column longitudinal reinforcement 4 is welded to the top center axis positions of the lower horizontal stirrups 2 and upper horizontal stirrups 3. Multiple node stirrups 5 are fixed to the surface of the column longitudinal reinforcement 4, forming the core load-bearing skeleton of the column. Subsequently, the front vertical reinforcement 6 and the rear vertical reinforcement 7 are inserted into the inner cavity of the concrete foundation 1. Multiple water... Horizontal stirrups 1 and 9 are welded to the surface of the horizontal stirrups 1 and 2. Tie bars 10 are welded to the surfaces of the two front vertical bars 6 and the two rear vertical bars 7 on the rear side. Transverse bars 11 are set inside the cavities of horizontal stirrups 1 and 2. The two ends of the front transverse bars 11 are welded to the front vertical bars 6, and the rear side is welded to the rear vertical bars 7. At the same time, reinforcing bars 12 are welded to the surface of the transverse bars 11 to connect horizontal stirrups 1 and 2. Finally, diagonal bracing bars 13 are welded to the top of the front vertical bars 6 and the rear vertical bars 7, and diagonal bracing bars 24 are welded to the bottom to ensure the stability of the connection node between the lower column pier and the concrete pad.

[0017] In summary: The connection between the lower column pier and the concrete foundation is fixed at the central axis of the top of the inner cavity of the concrete foundation 1 by the lower horizontal stirrup 2, the column longitudinal reinforcement 4, and the node stirrup 5. Through the coordinated use of the front vertical reinforcement 6, the first horizontal stirrup 8, and the second horizontal stirrup 9, the first diagonal bracing reinforcement 13 is fixed on top of the front vertical reinforcement 6 and the rear vertical reinforcement 7, thereby making the interior of the concrete foundation 1 more solid. Finally, the connection between the concrete foundation 1 and the column longitudinal reinforcement 4 is stable. This achieves the goal of strengthening the connection strength between the two through the pre-embedded positioning reinforcement and mortar base layer measures, solving the hidden dangers of hollowing and cracking at the joint surface, and improving the overall bearing stability of the foundation.

Claims

1. A construction connection node of a lower column pier and a concrete cushion layer, characterized in that, The structure includes multiple lower horizontal stirrups (2) welded to the inner cavity of the top of the concrete cushion layer (1), with multiple upper horizontal stirrups (3) welded to the top of the lower horizontal stirrups (2). The lower horizontal stirrups (2) are located on the front and rear sides of the inner cavity of the concrete cushion layer (1), and the upper horizontal stirrups (3) are located on the left and right sides of the inner cavity of the concrete cushion layer (1). A column longitudinal reinforcement (4) is provided at the central axis of the top of the concrete cushion layer (1). The column longitudinal reinforcement (4) is welded to the central axis of the top of the lower horizontal stirrups (2) and the upper horizontal stirrups (3). The bottom of the concrete cushion (1) is provided with a plurality of front vertical steel bars (6), and a plurality of rear vertical steel bars (7) are provided on the rear side of the plurality of front vertical steel bars (6). The front vertical steel bars (6) and the rear vertical steel bars (7) are both embedded in the inner cavity of the concrete cushion (1). A plurality of horizontal stirrups (8) are welded to the surface of the front vertical steel bars (6), and a plurality of horizontal stirrups (9) are welded to the surface of the rear vertical steel bars (7). The horizontal stirrups (8) and the horizontal stirrups (9) are symmetrical. The top of the front vertical steel bars (6) and the rear vertical steel bars (7) is welded with a diagonal bracing bar (13).

2. A construction joint between a column and a concrete pad according to claim 1, wherein The surface of the column longitudinal reinforcement (4) is fixedly connected with multiple node stirrups (5).

3. A construction joint between a column and a concrete pad according to claim 2, wherein Multiple tie bars (10) are welded to the surfaces of the two front vertical bars (6) on the rear side and the two rear vertical bars (7) on the front side, and the tie bars (10) are located on top of the horizontal stirrups one (8) and the horizontal stirrup two (9).

4. The construction connecting node of a lower column and a concrete cushion layer according to claim 3, characterized in that, The inner cavities of the first horizontal stirrup (8) and the second horizontal stirrup (9) are provided with multiple transverse steel bars (11). The two ends of the transverse steel bars (11) located on the front side are welded to the front vertical steel bar (6), and the two ends of the transverse steel bars (11) located on the rear side are welded to the rear vertical steel bar (7).

5. A construction joint between a column and a concrete pad according to claim 4, wherein Two symmetrical reinforcing bars (12) are welded to the surface of the plurality of transverse reinforcing bars (11), and the two ends of the reinforcing bars (12) are welded to horizontal stirrup one (8) and horizontal stirrup two (9).

6. A construction joint between a column and a concrete pad according to claim 5, wherein The bottom of the first diagonal brace (13) is provided with the second diagonal brace (14), and the two ends of the second diagonal brace (14) are welded to the bottom of the front vertical steel bar (6) and the rear vertical steel bar (7), respectively.

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