A reinforced connection structure for steel lattice columns and cast-in-place piles in the foundation of a tower crane

Abstract

This utility model relates to the field of crane foundation technology and discloses a reinforced connection structure between a steel lattice column and a cast-in-place pile for a tower crane foundation. The structure includes a foundation platform and a pre-reserved groove. Multiple reinforcing frames (section 1) are cast into the foundation platform through the pre-reserved groove. A cast-in-place pile body is fixedly installed along the inner edge of each reinforcing frame (section 1), and a second reinforcing frame (section 2) is fixedly installed along the outer edge of the cast-in-place pile body. A lattice column body is fixedly installed at the end of the foundation platform away from the first reinforcing frame (section 1). In this reinforced connection structure between the steel lattice column and the cast-in-place pile for a tower crane foundation, two I-beams (section 1) and two I-beams (section 2) are provided, and reinforcing steel with an "X"-shaped cross-section is fixedly installed at their connection points and connected to both I-beams. The "X"-shaped reinforcing steel forms cross-supports at the connection points of I-beams (section 1) and I-beams (section 2), enhancing the torsional and shear resistance of the lattice column body, making the "U"-shaped connection more robust, and further improving the structural stability and load-bearing capacity of the lattice column body.

Description

Technical Field

[0001] This utility model relates to the field of crane machinery foundation technology, specifically a reinforced connection structure between a steel lattice column and a cast-in-place pile for a tower crane foundation. Background Technology

[0002] With social development, urban buildings have an increasing demand for underground space. The original single-story basement can no longer meet the needs, and modern urban buildings generally have two or more basements. At such construction sites, tower crane foundations are often supported by four lattice columns. As the foundation is excavated, multiple lattice columns need to be reinforced with diagonal bracing to improve their stability.

[0003] Chinese Patent Publication No. CN114541464B discloses a tower crane foundation lattice column diagonal bracing reinforcement device. This device can reinforce lattice columns. The clamps and clamps are connected to tighten onto the lattice columns. The clamps can be connected in pairs by support rods to achieve reinforcement between lattice columns. The length of the support rods is adjustable, and the angle of the square blocks in the ball connection assembly is also adjustable, which improves the applicability of the device. However, although this tower crane foundation lattice column diagonal bracing reinforcement device can achieve reinforcement, it does not have a multi-point support reinforcement structure, which can easily lead to poor torsional and shear resistance of the lattice column body, resulting in a short service life and affecting normal use. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a reinforced connection structure between the steel lattice column and the cast-in-place pile of the tower crane foundation. It can effectively solve the problem in the prior art that the lack of a multi-point support and reinforcement structure can easily lead to poor torsional and shear resistance of the lattice column body, resulting in a short service life and affecting normal use.

[0005] The technical solution adopted by this utility model is: a reinforced connection structure between a steel lattice column and a cast-in-place pile for a tower crane foundation, including a foundation platform and a reserved groove. The foundation platform is cast with multiple reinforcing frames I through the reserved groove. A cast-in-place pile body is fixedly installed at the inner edge of the reinforcing frame I. A reinforcing frame II is fixedly installed at the outer edge of the cast-in-place pile body. A lattice column body is fixedly installed at the end of the foundation platform away from the reinforcing frame I. A connecting frame is fixedly installed at the outer edge of the lattice column body. A diagonal bracing column is welded to the end of the lattice column body near the foundation platform.

[0006] Preferably, the foundation platform is formed by concrete casting, the diagonal bracing column is located on the inner surface of the foundation platform, and at least four sets of the diagonal bracing columns are provided at the outer edge of a section of the lattice column body, with four identical diagonal bracing columns in each set.

[0007] Through the above technical solution, at least four groups of four identical diagonal braces are provided on the inner surface of the foundation pile cap and along the outer edge of the lattice column body. The shear resistance and torsional resistance of the connection part between the lattice column body and the foundation pile cap can be enhanced through multi-directional support. And during pouring, the diagonal braces can be poured into the foundation pile cap to further enhance the firmness of the connection between the two.

[0008] Preferably, reinforcing columns are fixedly installed at the four corners of the second reinforcing frame, and the other ends of the reinforcing columns away from the second reinforcing frame are in contact with the foundation pile cap.

[0009] Through the above technical solution, the reinforcing columns fixedly installed at the four corners of the second reinforcing frame, and the other ends of the reinforcing columns away from the second reinforcing frame are in contact with the foundation pile cap. The load borne by the cast-in-place pile body can be evenly transmitted to the foundation pile cap through the second reinforcing frame and the reinforcing columns. At the same time, the structural stiffness of the surrounding area of the cast-in-place pile body can be enhanced, and its bearing capacity can be enhanced.

[0010] Preferably, the connection frame has an "L"-shaped cross-section structure, and one end of the connection frame is in contact with the foundation pile cap.

[0011] Through the above technical solution, the connection frame has an "L"-shaped cross-section structure and one end is in contact with the foundation pile cap, which can increase the contact area between the connection frame and the foundation pile cap, improve the connection stability. At the same time, the "L"-shaped structure can form an effective rigid connection between the lattice column body and the foundation pile cap, enhancing the anti-tipping ability of the overall structure.

[0012] Preferably, at least four lattice column bodies are provided at the bottom of the foundation pile cap, and the lattice column bodies are respectively located at the four bottom feet of the foundation pile cap.

[0013] Through the above technical solution, at least four lattice column bodies are provided at the bottom of the foundation pile cap and are respectively located at the four bottom feet, so that the load of the foundation pile cap can be evenly distributed to each lattice column body, avoiding settlement or inclination of the foundation pile cap caused by excessive local stress, and ensuring the overall stability of the tower crane foundation.

[0014] Preferably, a first I-beam and a second I-beam are provided along the outer edge of the lattice column body, and the first I-beam and the second I-beam together form an "O"-shaped structure.

[0015] Through the above technical solution, the first I-beam and the second I-beam along the outer edge of the lattice column body together form an "O"-shaped structure. The "O"-shaped structure has good compressive and bending resistance, and can effectively improve the overall strength and stiffness of the lattice column body, making it not easy to deform when bearing a large load.

[0016] Preferably, there are two identical No. 1 I-beams and No. 2 I-beams. A reinforcing steel is fixedly installed at the connection of the two No. 1 I-beams and No. 2 I-beams. The cross-section of the reinforcing steel is in an "X" shape and is connected to both the No. 1 I-beam and the No. 2 I-beam.

[0017] Through the above technical solution, there are two No. 1 I-beams and two No. 2 I-beams respectively, and a reinforcing steel with an "X" - shaped cross-section and connected to both is fixedly installed at their connection. The "X" - shaped reinforcing steel can form a cross support at the connection of the No. 1 I-beam and the No. 2 I-beam, further enhancing the torsion resistance and shear resistance of the lattice column body, making the connection of the "mouth" - shaped structure more firm, and further improving the structural stability and bearing capacity of the lattice column body.

[0018] Compared with the prior art, the present utility model provides a reinforced connection structure between a tower crane foundation steel lattice column and a cast-in-place pile, having the following beneficial effects:

[0019] 1. For the reinforced connection structure between the tower crane foundation steel lattice column and the cast-in-place pile, the inclined struts are located on the inner surface of the foundation cap and at least four groups, each group having four identical inclined struts, are arranged along the outer edge of one section of the lattice column body. It can enhance the shear resistance and torsion resistance of the connection part between the lattice column body and the foundation cap through multi-directional support. And during pouring, the inclined struts can be poured into the foundation cap, further enhancing the firmness of the connection between the two.

[0020] 2. For the reinforced connection structure between the tower crane foundation steel lattice column and the cast-in-place pile, there are two No. 1 I-beams and two No. 2 I-beams respectively, and a reinforcing steel with an "X" - shaped cross-section and connected to both is fixedly installed at their connection. The "X" - shaped reinforcing steel can form a cross support at the connection of the No. 1 I-beam and the No. 2 I-beam, further enhancing the torsion resistance and shear resistance of the lattice column body, making the connection of the "mouth" - shaped structure more firm, and further improving the structural stability and bearing capacity of the lattice column body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 is an exploded structure schematic Figure 1 ;

[0023] Figure 3 is an exploded structure schematic Figure 2 ;

[0024] Figure 4 is a schematic diagram of the split structure of the foundation cap and the first reinforcing frame of the present utility model;

[0025] Figure 5 is a schematic diagram of the installation structure of the lattice column and the I-beam of the present utility model;

[0026] Figure 6 This is a schematic diagram of the disassembled structure of the lattice column and I-beam of this utility model;

[0027] Figure 7 This is a schematic diagram of the disassembled structure of the lattice column and connecting frame of this utility model.

[0028] The components are: 1. Foundation cap; 2. Reserved groove; 3. Reinforcing frame one; 4. Cast-in-place pile body; 5. Reinforcing frame two; 6. Reinforcing column; 7. Lattice column body; 8. Connecting frame; 9. Diagonal bracing column; 10. I-beam one; 11. I-beam two; 12. Reinforcing steel. Detailed Implementation

[0029] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: As Figure 1-7 As shown, the present invention provides a reinforced connection structure between a steel lattice column and a cast-in-place pile for a tower crane foundation, including a foundation platform 1 and a reserved groove 2. The foundation platform 1 is cast with multiple reinforcing frames 3 through the reserved groove 2. A cast-in-place pile body 4 is fixedly installed at the inner edge of the reinforcing frame 3, and a second reinforcing frame 5 is fixedly installed at the outer edge of the cast-in-place pile body 4. A lattice column body 7 is fixedly installed at the end of the foundation platform 1 away from the first reinforcing frame 3. A connecting frame 8 is fixedly installed at the outer edge of the lattice column body 7. A diagonal bracing column 9 is welded to the end of the lattice column body 7 near the foundation platform 1.

[0031] Specifically, the foundation cap 1 is formed by concrete casting, and the diagonal bracing columns 9 are located on the inner surface of the foundation cap 1. At least four sets of diagonal bracing columns 9 are set at the outer edge of a section of the lattice column body 7, and each set of diagonal bracing columns 9 has four identical columns. The advantage is that the diagonal bracing columns 9 are located on the inner surface of the foundation cap 1, and at least four sets of diagonal bracing columns 9 with four identical columns are set at the outer edge of a section of the lattice column body 7. This can enhance the shear and torsional resistance of the connection between the lattice column body 7 and the foundation cap 1 through multi-directional support. Furthermore, during casting, the diagonal bracing columns 9 can be cast into the interior of the foundation cap 1, further enhancing the firmness of the connection between the two.

[0032] Specifically, reinforcing columns 6 are fixedly installed at the four corners of the second reinforcing frame 5. The other end of the reinforcing column 6 away from the second reinforcing frame 5 contacts the foundation pile cap 1. The advantage is that the reinforcing column 6 fixedly installed at the four corners of the second reinforcing frame 5, and its other end away from the second reinforcing frame 5 contacts the foundation pile cap 1, which can evenly transfer the load borne by the cast-in-place pile body 4 to the foundation pile cap 1 through the second reinforcing frame 5 and the reinforcing column 6. At the same time, it enhances the structural stiffness of the surrounding area of the cast-in-place pile body 4 and can enhance its bearing capacity.

[0033] Specifically, the connecting frame 8 has an "L"-shaped cross-section structure. One end of the connecting frame 8 contacts the foundation pile cap 1. The advantage is that the connecting frame 8 has an "L"-shaped cross-section structure and one end contacts the foundation pile cap 1, which can increase the contact area between the connecting frame 8 and the foundation pile cap 1, improve the connection stability. At the same time, the "L"-shaped structure can form an effective rigid connection between the lattice column body 7 and the foundation pile cap 1, enhancing the anti-tipping ability of the overall structure.

[0034] Embodiment 2: As Figure 2-7 shown, as an improvement to the previous embodiment.

[0035] Specifically, at least four lattice column bodies 7 are provided at the bottom of the foundation pile cap 1, and the lattice column bodies 7 are respectively located at the four bottom feet of the foundation pile cap 1. The advantage is that at least four lattice column bodies 7 are provided at the bottom of the foundation pile cap 1 and are respectively located at the four bottom feet, which can evenly distribute the load of the foundation pile cap 1 to each lattice column body 7, avoiding settlement or inclination of the foundation pile cap 1 due to excessive local stress and ensuring the overall stability of the tower crane foundation.

[0036] Specifically, a first I-beam 10 and a second I-beam 11 are provided on the outer edge of the lattice column body 7. The first I-beam 10 and the second I-beam 11 together form a "square" - shaped structure. The advantage is that the first I-beam 10 and the second I-beam 11 on the outer edge of the lattice column body 7 together form a "square" - shaped structure. The "square" - shaped structure has good compressive and bending resistance performance, which can effectively improve the overall strength and stiffness of the lattice column body 7 and make it not easily deformed when bearing a large load.

[0037] Specifically, there are two identical No. 10 I-beams and two identical No. 11 I-beams. A reinforcing steel 12 is fixedly installed at the connection of the two No. 10 I-beams and the two No. 11 I-beams. The cross-section of the reinforcing steel 12 is in an "X" shape and is connected to both the No. 10 I-beam and the No. 11 I-beam. The advantages are that there are two No. 10 I-beams and two No. 11 I-beams respectively, and at their connection, a reinforcing steel 12 with an "X"-shaped cross-section and connected to both is fixedly installed. The "X"-shaped reinforcing steel 12 can form a cross support at the connection of the No. 10 I-beam and the No. 11 I-beam, further enhancing the torsional and shear resistance of the lattice column body 7, making the connection of the "square" structure more firm, and further improving the structural stability and bearing capacity of the lattice column body 7.

[0038] Working principle: When in use, at least four groups, each group having four identical diagonal braces 9, are arranged at the inner surface of the foundation cap 1 and along the outer edge of one section of the lattice column body 7. It can enhance the shear and torsional resistance of the connection part between the lattice column body 7 and the foundation cap 1 through multi-directional support. And during pouring, the diagonal braces 9 can be poured into the foundation cap 1, further enhancing the firmness of their connection. The reinforcing columns 6 fixedly installed at the four corners of the second reinforcing frame 5, and the other end of the reinforcing column 6 away from the second reinforcing frame 5 contacts the foundation cap 1, can evenly transfer the load borne by the cast-in-place pile body 4 to the foundation cap 1 through the second reinforcing frame 5 and the reinforcing columns 6, and at the same time enhance the structural stiffness of the surrounding area of the cast-in-place pile body 4, enhancing its bearing capacity. The connection frame 8 has an "L"-shaped cross-section and one end contacts the foundation cap 1, which can increase the contact area between the connection frame 8 and the foundation cap 1, improve the connection stability. At the same time, the "L"-shaped structure can form an effective rigid connection between the lattice column body 7 and the foundation cap 1, enhancing the anti-overturning ability of the overall structure. At least four lattice column bodies 7 are arranged at the bottom of the foundation cap 1 and are respectively located at the four feet, which can evenly distribute the load of the foundation cap 1 to each lattice column body 7, avoiding the settlement or inclination of the foundation cap 1 caused by excessive local stress, and ensuring the overall stability of the tower crane foundation. The No. 10 I-beams and the No. 11 I-beams along the outer edge of the lattice column body 7 together form a "square" structure. The "square" structure has good compressive and flexural properties, which can effectively improve the overall strength and stiffness of the lattice column body 7, making it not easy to deform when bearing a large load. There are two No. 10 I-beams and two No. 11 I-beams respectively, and at their connection, a reinforcing steel 12 with an "X"-shaped cross-section and connected to both is fixedly installed. The "X"-shaped reinforcing steel 12 can form a cross support at the connection of the No. 10 I-beam and the No. 11 I-beam, further enhancing the torsional and shear resistance of the lattice column body 7, making the connection of the "square" structure more firm, and further improving the structural stability and bearing capacity of the lattice column body 7.

[0039] 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 reinforced connection structure between a tower crane foundation steel lattice column and a cast-in-place pile, comprising a foundation slab (1) and a reserved slot (2), characterized in that: The foundation bearing platform (1) is cast with multiple sections of the first strengthening frame (3) through a reserved groove (2). The first strengthening frame (3) is fixedly installed with a cast-in-place pile body (4) along the inner edge. The outer edge of the cast-in-place pile body (4) is fixedly installed with the second strengthening frame (5). One end of the foundation bearing platform (1) far from the first strengthening frame (3) is fixedly installed with a lattice column body (7). The outer edge of the lattice column body (7) is fixedly installed with a connecting frame (8). One end of the lattice column body (7) close to the foundation bearing platform (1) is welded with a diagonal brace column (9).

2. The reinforced connection structure of a tower crane foundation steel lattice column and a cast-in-place pile according to claim 1, characterized in that: The diagonal brace column (9) is located on the inner surface of the foundation bearing platform (1). At least four groups of the diagonal brace columns (9) are arranged along the outer edge of one section of the lattice column body (7). Each group of the diagonal brace columns (9) has four identical ones.

3. The reinforced connection structure between the steel lattice column and the cast-in-place pile of a tower crane foundation according to claim 1, characterized in that: Reinforcing columns (6) are fixedly installed at the four corners of the second strengthening frame (5). The other ends of the reinforcing columns (6) far from the second strengthening frame (5) are in contact with the foundation bearing platform (1).

4. The reinforced connection structure between the steel lattice column and the cast-in-place pile of a tower crane foundation according to claim 1, characterized in that: The cross-section of the connecting frame (8) is in an "L" shape. One end of the connecting frame (8) is in contact with the foundation bearing platform (1).

5. The reinforced connection structure between the steel lattice column and the cast-in-place pile of a tower crane foundation according to claim 1, characterized in that: At least four lattice column bodies (7) are arranged at the bottom of the foundation bearing platform (1). The lattice column bodies (7) are respectively located at the four bottom feet of the foundation bearing platform (1).

6. The reinforced connection structure between the steel lattice column and the cast-in-place pile of a tower crane foundation according to claim 1, characterized in that: The outer edge of the lattice column body (7) is provided with the first I-beam (10) and the second I-beam (11). The first I-beam (10) and the second I-beam (11) together form a "square" shape structure.

7. The reinforced connection structure between the steel lattice column and the cast-in-place pile of a tower crane foundation according to claim 6, characterized in that: There are two identical first I-beams (10) and second I-beams (11). A reinforcing steel (12) is fixedly installed at the connection of the two first I-beams (10) and second I-beams (11). The cross-section of the reinforcing steel (12) is in an "X" shape and is connected to both the first I-beam (10) and the second I-beam (11).

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