Static load pull-out test support for engineering building pile foundation

Abstract

The utility model relates to the technical field of constructional engineering, and discloses an engineering construction pile foundation static load anti-pulling test support which comprises a supporting seat, a limiting groove is formed in the supporting seat, a tensile frame is clamped in the limiting groove, a first hook is fixedly connected to the surface of the supporting seat, a second hook is fixedly connected to the top of the tensile frame, and the second hook is fixedly connected to the top of the tensile frame. A limiting hole is formed in the top of the tensile frame, a connecting assembly is connected into the limiting hole in a sleeved mode, a mounting assembly is connected into the connecting assembly in a sleeved mode, and the mounting assembly comprises a hydraulic jack. According to the utility model, through the arrangement of the limiting block, when a static load anti-pulling test of an engineering building pile foundation is carried out, a reinforcing steel bar to be detected penetrates through the through hole in the limiting block and then is fastened in the limiting block through the bolt, and the limiting block is convenient for mounting and subsequent dismounting work. By arranging the first hook and the second hook, the whole device can be conveniently installed and fixed and disassembled after a subsequent test is finished through the first hook and the second hook.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a static load pull-out test support for a construction pile foundation. Background Art

[0002] Static load pullout test bearings for pile foundations in construction projects are key components used to test the pullout capacity of pile foundations. Their design and use are crucial to ensuring the stability and safety of engineering structures. Pile foundation pullout test bearings primarily consist of reaction bearings, reaction beams, a pressure device, tie rods, and connecting devices. These components work together to transmit and distribute the pullout force, ensuring stability and accuracy during the test. Reaction bearings are typically installed on both sides of the pile under test to support the reaction beam and ensure stability throughout the test. The reaction bearings must be structurally robust and durable, capable of withstanding significant pullout forces without displacement or deformation. The reaction beam, mounted on the reaction bearings, transmits the pullout force. Its design must ensure sufficient rigidity and stability to prevent lateral bending or torsion under the pullout force. The pressure device typically utilizes a hydraulic jack, which uses hydraulic principles to provide a uniform and controllable pullout force. The selection and placement of the jacks should ensure sufficient force application and precise control during the test. The tie rod connects the jack and the connection device, providing a direct path for transmitting the upward pull force. The tie rod design must provide sufficient strength and rigidity to prevent breakage during testing. The connection device typically consists of a steel cylinder and a rebar channel, which connects to the pre-reinforced reinforcement on the pile under test. The connection device must be designed to securely hold the tie rod and rebar in place, preventing relative slippage under the upward pull force.

[0003] However, when conducting experiments, the stressed steel bars are often difficult to tighten, which can easily cause the steel bars to become unhooked during the test, resulting in test failure. Therefore, before conducting the test, the steel bars need to be fixed on the top of the hydraulic jack to facilitate subsequent test work. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a static load pull-out test support for a construction pile foundation: comprising a support seat, a limiting groove is provided inside the support seat, a tensile frame is clamped inside the limiting groove, a hook 1 is fixedly connected to the surface of the support seat, a hook 2 is fixedly connected to the top of the tensile frame, a limiting hole is provided on the top of the tensile frame, a connecting component is sleeved inside the limiting hole, and an installation component is sleeved inside the connecting component;

[0005] The mounting assembly includes a hydraulic jack, the top of the hydraulic jack is fixedly connected to a connecting plate, the top of the connecting plate is fixedly connected to a mounting plate, the top of the mounting plate is fixedly connected to a limiting block, the inside of the limiting block is fixedly connected to a threaded sleeve, the inside of the threaded sleeve is threadedly connected to a bolt, and a through hole is opened inside the limiting block.

[0006] Through the above technical solution, when conducting a tensile test on a pile foundation support, first, the hook is hung on hook 1 by a crane, and then the support seat is moved to the top of the building pile to be tested by the crane, and the tensile frame is clamped inside the limit groove, and then the required steel bars are passed through the through hole. After the steel bars pass through the through hole inside the limit block, the steel bars are fastened to the inside of the limit block by bolts, and then the hydraulic jack is started to perform a static load pull-out test.

[0007] As a further improvement of the above scheme, the number of the support seats is set to two, and the two support seats are symmetrically and evenly distributed on the surface with the bottom center of the tensile frame; the number of the hooks 1 is set to two, and the two hooks 1 are symmetrically and evenly distributed at both ends with the top center of the support seat; the number of the hooks 2 is set to two, and the two hooks 2 are symmetrically distributed on the surface with the top center of the tensile frame.

[0008] With the above technical solution, through the cooperation between the threaded sleeve and the bolt, when the steel bar is located inside the limit block, the steel bar is fixed inside the limit block by the bolt, which facilitates subsequent test work.

[0009] As a further improvement of the above solution, the through hole passes through the mounting plate, and the number of the limit blocks is set to be several, and the limit blocks are evenly distributed on the surface symmetrically with respect to the center of the top of the mounting plate.

[0010] As a further improvement of the above solution, the connecting assembly includes a fixing column, the top of the fixing column is fixedly connected to a fixing platform, and the top of the fixing platform is fixedly connected to a limiting sleeve.

[0011] As a further improvement of the above solution, the fixing column is fixedly connected to the inside of the limiting hole.

[0012] As a further improvement of the above solution, there are four fixing columns, which are evenly distributed on the surface symmetrically with respect to the center of the bottom of the fixing platform, and the hydraulic jack is sleeved inside the limiting sleeve.

[0013] Through the above technical solution, the hydraulic jack is sleeved inside the limiting sleeve through the limiting sleeve, which facilitates the overall disassembly and assembly work after the test.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model provides a limit block, and when conducting a static load pull-out test on a pile foundation of an engineering building, the steel bar to be tested is passed through the through hole inside the limit block and is fastened to the inside of the limit block by bolts, so that the limit block is used to facilitate installation and subsequent disassembly.

[0016] The utility model is provided so that the first hook and the second hook are used to facilitate installation and fixation of the entire device and disassembly after subsequent tests. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A is an enlarged structural diagram;

[0020] Figure 4 This is a schematic diagram of the overall top structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the overall structure of the installation component of the utility model.

[0022] In the figure: 1. Support seat; 2. Limiting groove; 3. Tensile frame; 4. Hook 1; 5. Hook 2; 6. Limiting hole; 7. Connecting assembly; 71. Fixed column; 72. Fixed platform; 73. Limiting sleeve; 8. Mounting assembly; 81. Hydraulic jack; 82. Connecting plate; 83. Mounting sleeve; 84. Limiting block; 85. Threaded sleeve; 86. Bolt. DETAILED DESCRIPTION

[0023] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1:

[0025] Please combine Figure 1-5, a static load pull-out test support for a construction pile foundation of this embodiment includes a support base 1, a limiting groove 2 is provided inside the support base 1, a tensile frame 3 is clamped inside the limiting groove 2, a hook 1 4 is fixedly connected to the surface of the support base 1, a hook 2 5 is fixedly connected to the top of the tensile frame 3, a limiting hole 6 is provided on the top of the tensile frame 3, a connecting component 7 is sleeved inside the limiting hole 6, and an installation component 8 is sleeved inside the connecting component 7; the installation component 8 includes a hydraulic jack 81, and the top of the hydraulic jack 81 is fixedly connected to Connecting plate 82 is fixedly connected to the top of the mounting plate. A limit block 84 is fixedly connected to the top of the mounting plate. A threaded sleeve 85 is fixedly connected to the inside of the limit block 84. A bolt 86 is threadedly connected to the inside of the threaded sleeve 85. A through hole is provided inside the limit block 84, through which the required steel bar is passed. Once the steel bar passes through the through hole inside the limit block 84, it is fastened to the inside of the limit block 84 using bolt 86. The hydraulic jack 81 is then activated to conduct the static load pullout test. There are two support seats 1, each symmetrically distributed on the surface around the bottom center of the tensile frame 3. There are two hooks 4, each symmetrically distributed at both ends around the top center of the support seat 1. There are two hooks 5, each symmetrically distributed on the surface around the top center of the tensile frame 3. A through hole runs through the mounting plate. There are multiple limit blocks 84, each symmetrically distributed on the surface around the top center of the mounting plate. The connection assembly 7 includes a fixing post 71, the top of which is fixedly connected to a fixing platform 72, which in turn is fixedly connected to a limiting sleeve 73. The fixing post 71 is fixedly connected to the inside of the limiting hole 6. There are four fixing posts 71, symmetrically distributed around the bottom center of the fixing platform 72. A hydraulic jack 81 is sleeved inside the limiting sleeve 73. The sleeve 73 allows the hydraulic jack 81 to be inserted into the limiting sleeve 73, facilitating assembly and disassembly after testing.

[0026] The implementation principle of a static load pull-out test support for a construction pile foundation in the embodiment of the present application is as follows: when conducting a load pull-out test on a construction pile foundation, first, the hook is hung on the hook 4 by a crane, and then the support seat 1 is moved to the top of the construction pile to be tested by the crane, and the tensile frame 3 is clamped in the inside of the limit groove 2, and then the required steel bars are inserted from the inside of the through hole. After the steel bars pass through the through hole inside the limit block 84, the steel bars are fastened to the inside of the limit block 84 by bolts 86, and then the hydraulic jack 81 is started to perform a static load pull-out test to detect the construction engineering pile foundation.

[0027] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A static load pullout test support for construction pile foundations, characterized by: The invention comprises a support seat (1), a limiting groove (2) is provided inside the support seat (1), a tensile frame (3) is clamped inside the limiting groove (2), a hook 1 (4) is fixedly connected to the surface of the support seat (1), a hook 2 (5) is fixedly connected to the top of the tensile frame (3), a limiting hole (6) is provided on the top of the tensile frame (3), a connecting component (7) is sleeved inside the limiting hole (6), and a mounting component (8) is sleeved inside the connecting component (7); The mounting assembly (8) comprises a hydraulic jack (81), the top of the hydraulic jack (81) is fixedly connected to a connecting plate (82), the top of the connecting plate (82) is fixedly connected to a mounting plate, the top of the mounting plate is fixedly connected to a limiting block (84), the inside of the limiting block (84) is fixedly connected to a threaded sleeve (85), the inside of the threaded sleeve (85) is threadedly connected to a bolt (86), and a through hole is opened inside the limiting block (84).

2. The static load pullout test support for construction pile foundations according to claim 1, characterized in that: The number of the support seats (1) is set to two, and the two support seats (1) are symmetrically and evenly distributed on the surface with the bottom center of the tensile frame (3); the number of the hooks (4) is set to two, and the two hooks (4) are symmetrically and evenly distributed at both ends with the top center of the support seat (1); the number of the hooks (5) is set to two, and the two hooks (5) are symmetrically and evenly distributed on the surface with the top center of the tensile frame (3).

3. The static load pullout test support for construction pile foundations according to claim 1, characterized in that: The through hole passes through the mounting plate, and the number of the limiting blocks (84) is set to be several, and the several limiting blocks (84) are evenly distributed on the surface symmetrically with respect to the center of the top of the mounting plate.

4. The construction pile foundation static load pullout test support according to claim 1, characterized in that: The connecting assembly (7) comprises a fixing column (71), the top of the fixing column (71) is fixedly connected to a fixing platform (72), and the top of the fixing platform (72) is fixedly connected to a limiting sleeve (73).

5. The static load pullout test support for construction pile foundations according to claim 4, characterized in that: The fixing column (71) is fixedly connected to the inside of the limiting hole (6).

6. The construction pile foundation static load pullout test support according to claim 4, characterized in that: The number of the fixing columns (71) is four, and the four fixing columns (71) are evenly distributed on the surface symmetrically with respect to the bottom center of the fixing platform (72), and the hydraulic jack (81) is sleeved inside the limiting sleeve (73).

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