A replaceable reinforced unit assembled pile foundation cap test device

Abstract

The utility model provides a kind of replaceable reinforcing unit's assembly type pile foundation cap test device, including assembly type cap and assembly type reinforcing unit, at least two assembly type reinforcing units are used to surround the assembly type cap, and assembly type reinforcing unit is fastened by bolt between assembly type reinforcing unit.The utility model has the beneficial effects that: a kind of replaceable reinforcing unit's assembly type pile foundation cap test device is provided, the defect that traditional reinforcing scheme is not replaceable, irreversible is solved using modularization detachable connection design, secondary replacement or adjustment can be carried out to local damage, construction is convenient, flexible, it is favorable to realize modularization maintenance, low in cost.

Description

Technical Field

[0001] This utility model relates to pile foundation caps, and more particularly to a prefabricated pile foundation cap testing device with replaceable reinforcement units. Background Technology

[0002] As a key component transferring the load from the superstructure to the foundation, the stability and durability of pile foundation caps directly affect the overall structural safety. Under the influence of complex loads, foundation settlement, and environmental erosion, pile foundation caps are prone to cracking, insufficient bearing capacity, and even localized failure. To develop pile foundation caps suitable for different load conditions, experimental research using indoor testing equipment is necessary. However, during long-term repeated loading, pile foundation testing equipment is prone to concrete cracking, spalling, and decreased bearing capacity. Once the testing equipment is damaged or its performance degrades, it not only endangers the overall structural safety, but its repair and reinforcement often face severe challenges such as high cost, complex construction, and difficulty in secondary reinforcement. Existing traditional reinforcement techniques are generally irreversible; once reinforcement is implemented, it is difficult to flexibly adjust or partially replace it according to subsequent damage development. At the same time, current reinforcement technologies still have significant shortcomings in terms of construction convenience, long-term maintenance efficiency, and localized damage treatment, failing to meet the practical needs of testing equipment for easy replacement, simple construction, and repeated maintenance. Summary of the Invention

[0003] To address the limitations of traditional reinforcement methods that are neither replaceable nor reversible, this invention proposes a pile foundation cap testing device with replaceable reinforcement units. Its core lies in the use of a modular and detachable connection design. The pile cap is enclosed by assembled steel plates or steel sleeve modules, and a practical adjustable-height jack support system enables rapid positioning and secondary replacement of the required reinforcement parts.

[0004] This utility model provides a prefabricated pile cap test device with replaceable reinforcement units, including a prefabricated pile cap and prefabricated reinforcement units. At least two prefabricated reinforcement units are used to surround the prefabricated pile cap, and the prefabricated reinforcement units are fastened to each other by bolts.

[0005] As a further improvement of this utility model, the prefabricated reinforcing unit and the prefabricated support platform are connected by a mortise and tenon structure.

[0006] As a further improvement of this utility model, the outer side of the prefabricated foundation is provided with a prefabricated pile foundation tenon portion, and the inner side of the prefabricated reinforcement unit is provided with a prefabricated reinforcement unit tenon portion.

[0007] As a further improvement of this utility model, the prefabricated reinforcing unit includes two left and right interlocking semi-frame steel sleeves, with lugs on both sides of the semi-frame steel sleeves. The two left and right interlocking semi-frame steel sleeves enclose the prefabricated support platform, and the lugs of the two left and right interlocking semi-frame steel sleeves are fastened by bolts.

[0008] As a further improvement of this utility model, the lug is provided with bolt holes.

[0009] As a further improvement of this utility model, the prefabricated pile foundation test device also includes an adjustable-height hydraulic jack support system.

[0010] As a further improvement of this utility model, the height-adjustable hydraulic jack support system includes an intelligent hydraulic jack, a height-adjustable jack bracket, and a fixed base. The fixed base is fixed to the outer surface of the prefabricated reinforcement unit. The fixed base is connected to the height-adjustable jack bracket by bolts, and the height-adjustable jack bracket is connected to the intelligent hydraulic jack.

[0011] As a further improvement of this utility model, the fixed base and the assembled reinforcement unit are connected by welding.

[0012] As a further improvement of this utility model, the prefabricated pile foundation test device further includes a pile foundation, and the prefabricated pile foundation is disposed on the pile foundation.

[0013] The beneficial effects of this utility model are: it provides a prefabricated pile foundation test device with replaceable reinforcement units, which solves the defects of traditional reinforcement schemes that are not replaceable and irreversible by adopting a modular and detachable connection design. It can replace or adjust local damage a second time, which is convenient and flexible to construct, facilitates modular maintenance, and has low cost. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other solutions can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the prefabricated pile cap test device with replaceable reinforcement units according to this utility model.

[0016] Figure 2 This is a schematic diagram of the prefabricated pile cap test device with replaceable reinforcement units according to this utility model.

[0017] Figure 3This is a schematic diagram of the prefabricated reinforcement unit of the prefabricated pile cap test device with replaceable reinforcement units according to this utility model.

[0018] Figure 4 This is a schematic diagram of the adjustable height hydraulic jack support system of the prefabricated pile foundation cap test device with replaceable reinforcement units according to this utility model.

[0019] Figure 5 This is a schematic diagram of the connection of the fixed base of the prefabricated pile foundation test device with replaceable reinforcement units according to this utility model. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 5As shown, a test device for a prefabricated pile cap with replaceable reinforcement units includes a prefabricated pile cap 1 and prefabricated reinforcement units 3. At least two prefabricated reinforcement units 3 are used to enclose the prefabricated pile cap 1. In this embodiment, it is preferred to use two left-right symmetrical prefabricated reinforcement units 3 to enclose the prefabricated pile cap 1, but it is not limited thereto. The number of prefabricated reinforcement units 3 can be adjusted as needed.

[0025] The prefabricated reinforcement unit 3 is fastened to the prefabricated reinforcement unit 3 by bolts 4, and together they form a ring constraint to improve the bearing capacity of the foundation.

[0026] By using prefabricated reinforcement unit 3 to enclose the prefabricated pile cap 1, the modular and detachable connection and secondary replacement of the pile cap reinforcement unit are realized under the premise of ensuring the accuracy of experimental tests and the authenticity of stress. This effectively solves the technical problems of low construction efficiency, non-replaceable reinforcement units, and high requirements for construction technology in traditional reinforcement methods.

[0027] The prefabricated reinforcement unit 3 and the prefabricated support platform 1 are connected by a mortise and tenon structure, achieving mechanical engagement through the mechanical mortise and tenon structure, and are fastened with bolts, forming a standardized functional module that can be quickly assembled and disassembled.

[0028] The prefabricated pile cap 1 has a prefabricated pile cap tenon portion 8 on its outer side, and the prefabricated reinforcement unit 3 has a prefabricated reinforcement unit tenon portion 10 on its inner side.

[0029] The prefabricated reinforcement unit 3 includes two left-right connected semi-frame steel sleeves 301. The two sides of the semi-frame steel sleeves 301 are provided with lugs 302. The two left-right connected semi-frame steel sleeves 301 surround the prefabricated support platform 1. The lugs 302 of the two left-right connected semi-frame steel sleeves surrounding the 301 are fastened by bolts 4.

[0030] The lug 302 is provided with bolt holes 9.

[0031] The prefabricated reinforcement unit 3 uses prefabricated steel plates or steel sleeve modules to enclose the prefabricated bearing platform 1 to improve its restraint and load-bearing capacity.

[0032] The prefabricated pile cap test device also includes an adjustable-height hydraulic jack support system.

[0033] The height-adjustable hydraulic jack support system includes an intelligent hydraulic jack 11, a height-adjustable jack bracket 6, and a fixed base 5. The fixed base 5 is fixed to the outer surface of the prefabricated reinforcement unit 3. The fixed base 5 is connected to the height-adjustable jack bracket 6 by bolts. The height-adjustable jack bracket 6 is connected to the intelligent hydraulic jack 11. The intelligent hydraulic jack 11 drives the height-adjustable jack bracket 6 to perform lifting and lowering movements, thereby realizing the adjustable assembly height of the prefabricated reinforcement unit 3. The height-adjustable hydraulic jack support system allows for the rapid positioning and secondary replacement of the required reinforcement parts.

[0034] The horizontal adjustment section 7 of the intelligent hydraulic jack 11 can be adjusted horizontally.

[0035] The use of a hydraulic jack support system to assist in the replacement of prefabricated reinforcement units facilitates transportation, hoisting, installation and dismantling, significantly improving construction efficiency and quality.

[0036] The fixed base 5 and the assembled reinforcement unit 3 are connected by welding.

[0037] The prefabricated pile foundation test device also includes a pile foundation 2, and the prefabricated pile foundation 1 is set on the pile foundation 2.

[0038] The prefabricated pile cap test device with replaceable reinforcement units provided by this invention has the following advantages:

[0039] (1) This device replaces the traditional bonding or casting process with mechanical anchoring and bolt connection, realizing the non-destructive disassembly and replacement of damaged reinforcement units, avoiding the waste of resources caused by overall reinforcement. During the repair process, only local units need to be replaced, without the need for large-scale removal of concrete or adhesive work, making the construction more efficient.

[0040] (2) An adjustable-height hydraulic jack support system is used to support the assembly of the reinforcement unit, which facilitates disassembly and transportation and can adapt to pile caps of different heights. Simultaneously, it provides support during the installation of the reinforcement unit, avoiding disturbance during the hoisting process and achieving precise and effective positioning. Ultimately, this technology significantly improves repair efficiency, avoids unnecessary structural burdens, and effectively reduces the total life-cycle cost through the reusability of modular units.

[0041] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A prefabricated pile cap test device with replaceable reinforcement units, characterized in that: It includes a prefabricated foundation and prefabricated reinforcing units. At least two prefabricated reinforcing units are used to surround the prefabricated foundation, and the prefabricated reinforcing units are fastened to each other with bolts.

2. The prefabricated pile cap test device with replaceable reinforcement units according to claim 1, characterized in that: The prefabricated reinforcement unit and the prefabricated support platform are connected by a mortise and tenon structure.

3. The prefabricated pile cap test device with replaceable reinforcement units according to claim 2, characterized in that: The outer side of the prefabricated pile cap is provided with a prefabricated pile cap tenon portion, and the inner side of the prefabricated reinforcement unit is provided with a prefabricated reinforcement unit tenon portion.

4. The prefabricated pile cap test device with replaceable reinforcement units according to claim 1, characterized in that: The prefabricated reinforcement unit includes two left-right joined semi-frame steel sleeves, each with lugs on both sides. The two left-right joined semi-frame steel sleeves enclose the prefabricated support platform, and the lugs of the two left-right joined semi-frame steel sleeves are fastened with bolts.

5. The prefabricated pile cap test device with replaceable reinforcement units according to claim 4, characterized in that: The lug is provided with bolt holes.

6. The prefabricated pile cap test device with replaceable reinforcement units according to claim 1, characterized in that: The prefabricated pile cap test device also includes an adjustable-height hydraulic jack support system.

7. The prefabricated pile cap test device with replaceable reinforcement units according to claim 6, characterized in that: The height-adjustable hydraulic jack support system includes an intelligent hydraulic jack, a height-adjustable jack bracket, and a fixed base. The fixed base is fixed to the outer surface of the prefabricated reinforcement unit. The fixed base is connected to the height-adjustable jack bracket by bolts, and the height-adjustable jack bracket is connected to the intelligent hydraulic jack.

8. The prefabricated pile cap test device with replaceable reinforcement units according to claim 7, characterized in that: The fixed base and the assembled reinforcement unit are connected by welding.

9. The prefabricated pile cap test device with replaceable reinforcement units according to claim 1, characterized in that: The prefabricated pile cap test device also includes a pile foundation, and the prefabricated pile cap is set on the pile foundation.

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