Arc-edge cross-shaped reinforcing stirrup and reinforcement cage for slide-resistant pile
By arranging arc-edge cross-reinforced stirrups and a double-layer steel cage structure at the construction joints and sliding surfaces of anti-sliding piles, the problem of insufficient bending and shear resistance in the construction joints of anti-sliding piles is solved, and the integrity of the pile body is achieved. Enhancement of lifting and anti-slip capabilities.
Patent Information
- Application Number
- CN202420667891.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-02
AI Technical Summary
In the construction of anti-slip piles, the bending and shear resistance at the construction joints are insufficient, resulting in pile defects and poor integrity, affecting the anti-slip ability.
The arc-edge cross-reinforced stirrups and steel cage structure are adopted. The arc-edge cross-reinforced stirrups are set at the construction joints and sliding surfaces to improve the bending and shear resistance. The pile body is strengthened through the coordinated stress of the double-layer steel cage. overall stability.
It effectively improves the bending and shear resistance of the anti-slide pile construction joints, compensates for the defects of the pile body, enhances the integrity, and meets the anti-slip requirements. At the same time, it has a simple structure and low cost.
Smart Images
Figure CN222375379U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to an arc-edge cross reinforcing stirrup and a steel cage for anti-sliding piles. Background Art
[0002] Anti-slide piles mainly use the anchor pipes and passive resistance of the pile body to stabilize the rock layer below the sliding surface of the landslide to balance the downward thrust of the landslide. However, when encountering anti-slide piles that are not conducive to one-time pouring, or backfilling the slope, or backfilling the waist of the slope, it is usually necessary to pour the anchor section below the ground first, and then set up the formwork through the lock part to pour the remaining cantilever section to reduce the difficulty of the project. Such construction will form a construction joint during the two pouring processes, and improper handling will result in a broken pile. At present, many reinforcement plans and measures have emerged in the industry to address this construction joint problem, but after arranging the reinforcement bars at this location, there will be problems with the coordinated force between the original configuration of the steel bars, as well as a complicated construction sequence. Therefore, even after taking reinforcement measures, there will still be problems with poor integrity of the pouring, resulting in a weakened anti-slide ability of the anti-slide piles, which cannot meet the use requirements. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides an arc-edge cross reinforcing stirrup and a steel cage for anti-sliding piles for improving the strength of the anti-sliding piles.
[0004] The first aspect of the utility model provides an arc-edged cross-reinforced stirrup for anti-sliding piles, comprising two groups of stirrup assemblies, the two groups of stirrup assemblies are located in the same plane and are vertically arranged, the centers of the two groups of stirrup assemblies coincide, the stirrup assemblies are symmetrical structures, each group of the stirrup assemblies comprises two arc bars and two reinforced stirrups, the arc bars and the reinforced stirrups are alternately connected to form a closed-loop structure.
[0005] Optionally, the two groups of stirrup assemblies are connected by welding.
[0006] A second aspect of the utility model provides a steel cage for anti-sliding piles, comprising the arc-edged cross reinforcing stirrups for anti-sliding piles described in any of the above embodiments, and also comprising a plurality of main bars and reinforcing bars. The reinforced steel cage formed by the plurality of reinforcing bars is coaxially arranged with the main steel cage formed by the plurality of main bars. The plurality of main bars are vertically arranged and evenly distributed along the circumference of the steel cage. The plurality of reinforcing bars are vertically arranged and evenly distributed along the circumference of the steel cage. The reinforcing steel cage is arranged inside the main steel cage. The arc bars are connected to the outer wall of the main steel cage. The intersection of the reinforcing stirrups of the two groups of stirrup assemblies is connected to the reinforcing steel cage.
[0007] Optionally, a plurality of arc-edge cross reinforcing stirrups are provided on the outer wall of the main steel cage, and the plurality of arc-edge cross reinforcing stirrups are arranged at intervals along the length direction of the main reinforcement.
[0008] Optionally, the radius corresponding to the arc reinforcement is equal to the radius of the main reinforcement cage.
[0009] Optionally, the intersection of the arc reinforcement and the reinforcing stirrup is welded to the main reinforcement.
[0010] Optionally, it further includes a plurality of first hoops, which are all connected to the inner wall of the main reinforcement cage and are arranged at intervals along the length direction of the main reinforcement.
[0011] Optionally, it also includes spiral stirrups, which are arranged on the outside of the main steel cage and distributed in a spiral shape along the central axis of the main steel cage.
[0012] Optionally, it further includes a plurality of second hoops, which are all connected to the outer wall of the reinforcing steel cage and are arranged at intervals along the length direction of the reinforcing bar.
[0013] Compared with the prior art, the technical solution provided by the embodiment of the utility model has the following beneficial effects:
[0014] The embodiment of the utility model provides an arc-edge cross reinforcing stirrup for an anti-sliding pile. By arranging arc-edge cross reinforcing stirrups at the construction joint and calculated sliding surface of the anti-sliding pile, the bending resistance and shear resistance of the construction joint of the anti-sliding pile are improved, and the defects of the pile body of the anti-sliding pile are effectively compensated. The arc-edge cross reinforcing stirrups have a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0017] Figure 1 This is a schematic diagram of the structure of the arc-edge cross reinforcing stirrups described in an embodiment of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the steel cage according to an embodiment of the utility model;
[0019] Figure 3 It is a schematic diagram of the anti-sliding pile anchoring section after being penetrated according to the embodiment of the utility model;
[0020] Figure 4 It is a schematic diagram of the anchoring section of the anti-sliding pile according to the embodiment of the utility model after pouring;
[0021] Figure 5 It is a schematic diagram of the anti-sliding pile after the anchoring section and the cantilever section are connected according to an embodiment of the utility model;
[0022] Figure 6 It is a structural schematic diagram of the positioning pliers described in an embodiment of the utility model.
[0023] Among them, 1. main reinforcement; 2. reinforcing reinforcement; 3. stirrup assembly; 301. arc reinforcement; 302. reinforcing stirrup; 4. second hoop; 5. first hoop; 6. spiral stirrup; 7. positioning clamp; 8. casting inlet. DETAILED DESCRIPTION
[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.
[0026] Reference Figure 1 As shown, an embodiment of the utility model provides an arc-edge cross-reinforced stirrup for anti-sliding piles, including two groups of stirrup assemblies 3, the two groups of stirrup assemblies 3 are located in the same plane and are vertically arranged, the centers of the two groups of stirrup assemblies 3 coincide, the stirrup assemblies 3 are symmetrical structures, each group of stirrup assemblies 3 includes two arc bars 301 and two reinforced stirrups 302, and the arc bars 301 and the reinforced stirrups 302 are alternately connected to form a closed-loop structure.
[0027] Among them, the two groups of stirrup assemblies 3 have the same structure and are both symmetrical structures. The two groups of stirrup assemblies 3 are cross-arranged in the same horizontal plane to form arc-edge cross-reinforced stirrups that can be used for anti-sliding piles. By arranging arc-edge cross-reinforced stirrups at the construction joints and calculated sliding surfaces of the anti-sliding piles, the bending and shearing capabilities of the construction joints of the anti-sliding piles are improved, and the defects of the pile body of the anti-sliding piles are effectively compensated. The arc-edge cross-reinforced stirrups have a simple structure and low cost.
[0028] Furthermore, the two sets of stirrup assemblies 3 are connected by welding.
[0029] Reference Figure 2As shown, other embodiments of the utility model provide a steel cage for anti-sliding piles, including the arc-edge cross reinforcing stirrups for anti-sliding piles described in any of the above embodiments, and also including a plurality of main bars 1 and reinforcing bars 2. The main steel cage surrounded by the plurality of main bars 1 and the reinforced steel cage surrounded by the plurality of reinforcing bars 2 are coaxially arranged, the plurality of main bars 1 are vertically arranged and evenly distributed along the circumference of the steel cage, the plurality of reinforcing bars 2 are vertically arranged and evenly distributed along the circumference of the steel cage, and the reinforced steel cage is arranged inside the main steel cage, the arc bars 301 are connected to the outer wall of the main steel cage, and the intersection of the reinforcing stirrups 302 of the two stirrup assemblies 3 is connected to the reinforced steel cage. Specifically, the anti-sliding pile includes a double-layer steel cage arranged inside the pile body, the outer steel cage is a main steel cage surrounded by multiple main bars 1, and the inner steel cage is a reinforced steel cage surrounded by multiple reinforcing bars 2. The main steel cage and the reinforced steel cage are coaxially arranged and are both connected with the arc-edge cross reinforcing arc bars. That is to say, the curvature of the arc bar 301 is the same as the curvature of the inner wall of the main steel cage. By arranging the arc-edge cross reinforcing arc bars, the main steel cage and the reinforced steel cage are connected, thereby improving the envelope performance of the concrete between the main steel cage and the reinforced steel cage, so that the arc-edge cross reinforcing stirrups and the double-layer steel cage can exert the maximum synergistic force effect, thereby reducing the force on the pile body of the anti-sliding pile and avoiding deformation and displacement of the pile body due to excessive force.
[0030] Furthermore, a plurality of arc-edge cross reinforcing stirrups are arranged on the outer wall of the main steel cage, and the plurality of arc-edge cross reinforcing stirrups are arranged at intervals along the length direction of the main reinforcement 1. Specifically, the plurality of arc-edge cross reinforcing stirrups are arranged equidistantly from top to bottom along the length direction of the main reinforcement 1, thereby improving the stability of the double-layer steel cage formed by the main steel cage and the reinforcing steel cage, and preventing the pile body from being deformed and displaced due to excessive force.
[0031] Reference Figure 2 As shown, the radius corresponding to the arc reinforcement 301 is equal to the radius of the main steel cage, that is, the diameter of the circumscribed circle of the arc-edge cross reinforcing stirrups is the same as the diameter of the circle formed by the main steel cage, so that the arc-edge cross reinforcing stirrups can be just sleeved on the outside of the main steel cage to prevent the main steel cage from deformation.
[0032] Continue to refer to Figure 2 As shown, the intersection of the arc reinforcement 301 and the reinforcing stirrup 302 is welded to the main reinforcement 1, thereby improving the strength of the main reinforcement cage and preventing the main reinforcement cage from deformation.
[0033] In some embodiments, a plurality of first hoops 5 are further included, and the plurality of first hoops 5 are all connected to the inner wall of the main reinforcement cage and are arranged at intervals along the length direction of the main reinforcement 1. Specifically, the first hoops 5 are arranged on the inner wall of the main reinforcement cage, and the plurality of first hoops 5 are arranged equidistantly from top to bottom along the length direction of the main reinforcement 1, thereby enhancing the strength of the main reinforcement cage surrounded by the plurality of main reinforcements 1 and preventing the main reinforcement cage from being deformed.
[0034] In other embodiments, spiral stirrups 6 are further included. The spiral stirrups 6 are arranged on the outside of the main steel cage and are distributed in a spiral shape along the central axis of the main steel cage. The spiral stirrups 6 and the vertically arranged main bars 1 together form a steel skeleton to prevent the main bars 1 from bending and at the same time restrain the lateral deformation of the core concrete.
[0035] Of course, in order to ensure the strength of the reinforced steel cage surrounded by multiple reinforcing bars 2, multiple second hoops 4 are also included. The multiple second hoops 4 are all connected to the outer wall of the reinforced steel cage and are arranged at intervals along the length direction of the reinforcing bars 2 to prevent the reinforcing bars 2 from bending.
[0036] Reference Figure 3 As shown, in order to ensure the stability of the anti-sliding pile, the anti-sliding pile includes a cantilever section and an anchoring section connected up and down. First, the reinforcing bar 2, the arc-edge cross reinforcing stirrups and the second hoop 4 located in the anchoring section are connected, and then the arc-edge cross reinforcing stirrups connected to the reinforcing bar 2 are connected to the first hoop 5, so that the whole formed by the reinforcing bar 2, the arc-edge cross reinforcing stirrups, the second hoop 4 and the first hoop 5 is penetrated when the main steel cage is lowered to prevent the interface deformation of the whole after mechanical connection during transportation, and then the first hoop 5 and the arc-edge cross reinforcing stirrups are welded to the main steel bar 1 in sequence along the length direction of the main steel cage. When the main steel cage is mechanically connected, the spiral stirrups 6 are welded to the main steel bar 1. Of course, before the main steel cage is mechanically connected, refer to Figure 6 As shown, the main reinforcement 1 can be straightened by positioning clamps 7 first.
[0037] Reference Figure 4 and Figure 5 As shown, after the steel cage in the anchoring section is connected, the anti-sliding pile is poured once by pouring concrete into the anchoring section. After the anchoring section reaches a certain strength after pouring, the pile head is chiseled off, the cross section is cleaned, the reinforcing bar 2 of the cantilever section is removed, the first stirrup 5 in the cantilever section is pre-set, and then the second hoop 4 and the arc-edge cross reinforcing stirrups are connected layer by layer on the reinforcing bar 2 on the cantilever section, the main reinforcement 1 of the cantilever section is correspondingly penetrated into the arc-edge cross reinforcing stirrups for preliminary positioning, and then the misplaced main reinforcement 1 is straightened using the positioning clamp 7 to avoid affecting the anchoring section and the cantilever section. Before the cantilever section and the anchor section are connected, the spiral stirrups 6 within 2m of the interface of the cantilever section are stacked and tied on the main reinforcement 1. After the cantilever section and the anchor section are mechanically connected, the first hoop 5 and the arc-edge cross reinforcement stirrups are welded to the main reinforcement 1 in sequence along the length direction of the main reinforcement 1, and then the spiral stirrups 6 at the interface are released, and the spiral stirrups 6 are connected to the main reinforcement 1 by electric welding. A steel formwork is set at the locking position of the anti-sliding pile, and the feeding conduit is extended into the pouring inlet 8 to pour the cantilever section of the anti-sliding pile. After the pouring is completed, vibration operation is performed at the inlet.
[0038] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0039] The above description is only a specific embodiment of the utility model, so that those skilled in the art can understand or implement the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features of the utility model described herein.
Claims
1. An arc-edge cross reinforcement stirrup for anti-sliding piles, characterized in that: The invention comprises two groups of stirrup assemblies (3), the two groups of stirrup assemblies (3) are located in the same plane and are arranged vertically, the centers of the two groups of stirrup assemblies (3) coincide, the stirrup assemblies (3) are symmetrical structures, each group of stirrup assemblies (3) comprises two arc ribs (301) and two reinforcing stirrups (302), and the arc ribs (301) and the reinforcing stirrups (302) are alternately connected to form a closed loop structure.
2. The arc-edge cross reinforcement stirrup for anti-sliding piles according to claim 1, characterized in that: The two groups of stirrup assemblies (3) are connected by welding.
3. A steel cage for anti-sliding piles, characterized in that: It comprises the arc-edged cross reinforcing stirrups for anti-sliding piles as described in any one of claims 1 and 2, and also comprises a plurality of main bars (1) and reinforcing bars (2), wherein a main steel cage formed by the plurality of main bars (1) and a reinforcing steel cage formed by the plurality of reinforcing bars (2) are coaxially arranged, the plurality of main bars (1) are vertically arranged and evenly distributed along the circumference of the main steel cage, the plurality of reinforcing bars (2) are vertically arranged and evenly distributed along the circumference of the reinforcing steel cage, and the reinforcing steel cage is arranged inside the main steel cage, the arc bars (301) are connected to the outer wall of the main steel cage, and the intersection of the reinforcing stirrups (302) of the two groups of stirrup assemblies (3) is connected to the reinforcing steel cage.
4. The steel cage for anti-sliding piles according to claim 3, characterized in that: A plurality of arc-edge cross reinforcing stirrups are arranged on the outer wall of the main steel cage, and the plurality of arc-edge cross reinforcing stirrups are arranged at intervals along the length direction of the main reinforcement (1).
5. The steel cage for anti-sliding piles according to claim 3, characterized in that: The radius corresponding to the arc reinforcement (301) is equal to the radius of the main reinforcement cage.
6. The steel cage for anti-sliding piles according to claim 3, characterized in that: The intersection of the arc reinforcement (301) and the reinforcing stirrup (302) is welded to the main reinforcement (1).
7. The steel cage for anti-sliding piles according to claim 3, characterized in that: It also comprises a plurality of first hoops (5), wherein the plurality of first hoops (5) are all connected to the inner wall of the main reinforcement cage and are arranged at intervals along the length direction of the main reinforcement (1).
8. The steel cage for anti-sliding piles according to claim 3, characterized in that: It also comprises spiral stirrups (6), which are arranged on the outside of the main steel cage and distributed in a spiral shape along the central axis of the main steel cage.
9. The steel cage for anti-sliding piles according to claim 3, characterized in that: It also comprises a plurality of second hoops (4), wherein the plurality of second hoops (4) are all connected to the outer wall of the reinforcing steel cage and are arranged at intervals along the length direction of the reinforcing ribs (2).