Hanging bar connecting embedded part for deep foundation pit row piles
By designing a hanging rib connecting embedded parts for deep foundation pit piles, and using arc-shaped embedded steel plates to directly anchor them with concrete, the problem of concrete chiseling in traditional construction is solved, and the effect of resource saving, cost reduction and pile load capacity improvement is achieved.
Patent Information
- Application Number
- CN202420413488.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-04
AI Technical Summary
In the construction of traditional deep foundation pit piles, the construction of purlins requires the removal of concrete from the piles, resulting in waste of resources, increase costs and weaken the bearing capacity of the piles.
A hanging bar connecting embedded parts for deep foundation pit piles is designed, including arc-shaped embedded steel plates and L-shaped anchored steel bars that cooperate with the outer side of the piles. They are directly anchored with concrete through arc-shaped embedded steel plates to avoid concrete chiseling.
The hanging rib connection without concrete chiseling is realized, the construction process is simplified, resources are saved, the bearing capacity of piles is improved, and construction costs are reduced.
Smart Images
Figure CN222685496U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a pre-embedded part for connecting hanging bars of deep foundation pit piles. Background Art
[0002] A common support system for deep foundation pit projects is the row of piles + internal support system. The row of piles is a bored cast-in-place pile that is constructed before the foundation pit is excavated. The construction process is drilling, lowering the steel cage, and pouring concrete. The internal support generally uses reinforced concrete support. After each layer of soil is excavated, a layer of support structure is constructed. The surrounding purlins in the support structure are connected to the row of piles to withstand the lateral pressure of the row of piles. In the traditional method, when constructing the surrounding purlins, it is necessary to chisel off the concrete on the row of piles to expose the longitudinal main reinforcement of the row of piles for welding the hanger bars, as shown in the attached manual. Figure 3 As shown in the figure. Concrete chiseling not only wastes resources and increases costs, but also weakens the bearing capacity of piles. A pre-embedded part for connecting hanging bars of deep foundation pit piles is proposed to avoid concrete chiseling construction. Utility Model Content
[0003] The utility model aims to provide a pre-embedded part for connecting hanging bars of deep foundation pit piles which is easy to operate and avoids concrete chiseling.
[0004] The utility model is achieved through the following measures:
[0005] A pre-embedded part for connecting hanging bars of deep foundation pit piles, characterized in that it includes an arc-shaped pre-embedded steel plate that cooperates with the outer side surface of the pile row, the pile row is composed of a steel cage and concrete, the steel cage includes longitudinal main bars and spiral stirrups and other components, the shape of the arc-shaped pre-embedded steel plate is consistent with the outer side surface of the pile row, and is close to the edge of the pile row, and a plurality of groups of L-shaped anchor steel bars are arranged on the inwardly concave inner side surface of the arc-shaped pre-embedded steel plate, and the plurality of groups of L-shaped anchor steel bars can ensure the direct anchoring of the arc-shaped pre-embedded steel plate and concrete, and after the hanging bars are welded, the hanging bars transmit force to the L-shaped anchor steel bars, and the L-shaped anchor steel bars transmit force to the pile row.
[0006] The specific features of the utility model also include:
[0007] A fixing rod is provided on the inwardly concave inner side surface of the arc-shaped embedded steel plate, and a clamp is provided on the free end of the fixing rod. The clamp is composed of a thin steel sheet and a butterfly screw. The butterfly screw locks the clamp on the longitudinal main reinforcement of the row of piles. The embedded parts are temporarily fixed on the longitudinal main reinforcement of the row of piles through the clamp. During construction, when the drilling is completed, the embedded parts are lowered together with the steel cage, and then concrete is poured. The clamp can ensure that the embedded parts are accurately positioned during the lowering process and are not squeezed or displaced during the concrete pouring process.
[0008] Several groups of threaded holes are arranged on the inner side surface of the arc-shaped embedded steel plate, and corresponding ends of several groups of L-shaped anchoring steel bars are arranged with screw rods matching with the threaded holes. The L-shaped anchoring steel bars are arranged on the arc-shaped embedded steel plate through threaded structures. Several groups of L-shaped anchoring steel bars can be rotated at different angles. On the one hand, it is convenient to avoid certain interfering parts on the steel cage and facilitate installation. On the other hand, the different angles of several groups of L-shaped anchoring steel bars also increase the firmness of the connection with reinforced concrete.
[0009] Diagonal rods are arranged between several groups of the L-shaped anchoring steel bars and the inner side surfaces of the arc-shaped embedded steel plates, and the diagonal rods serve as reinforcing ribs.
[0010] A second threaded hole is provided on the end surface of the fixing rod away from the arc-shaped embedded steel plate, and a second screw rod matching the second threaded hole is provided on the corresponding outer side surface of the clamp. The second screw rod is arranged in the second threaded hole, and the clamp is installed on the fixing rod through the cooperation between the second screw rod and the second threaded hole. Clamps of different diameters can be easily replaced to adapt to the diameters of different longitudinal main reinforcements.
[0011] During construction, the embedded part is first fixed to the longitudinal main reinforcement of the steel cage by the clamp, and then lowered together with the steel cage, and then concrete is poured. The clamp can ensure that the embedded part is accurately positioned during the lowering process and is not squeezed or displaced during the concrete pouring process. After the excavation of the foundation pit, since the embedded part is on the outer surface of the pile row, the suspension bar can be directly welded to the arc-shaped embedded steel plate after the excavation, and the other end of the suspension bar is arranged in the surrounding purlin, avoiding concrete chiseling, that is, there is no need to chisel out the concrete chiseling area on the pile row.
[0012] The beneficial effects of the utility model are as follows: the embedded part has a simple structure, is easy to operate and install, and the new construction method is both green and environmentally friendly, safe and reliable, and avoids concrete chiseling, that is, there is no need to chisel out a concrete chiseling area on the pile row. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.
[0014] Figure 2 It is a top view of the embodiment of the utility model after being installed on the pile row.
[0015] Figure 3 It is a schematic diagram related to traditional construction technology in background technology.
[0016] Figure 4 It is a vertical cross-sectional view of an embodiment of the utility model after being installed on a pile row.
[0017] Among them, the figure markings are: 1. arc-shaped embedded steel plate; 2. L-shaped anchor steel bar; 3. butterfly screw; 4. clamp; 5. fixing rod; 6. concrete; 7. spiral stirrups; 8. longitudinal main reinforcement; 9. pile row; 10. concrete chiseled area; 11. hanger bar; 12. purlin. DETAILED DESCRIPTION
[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0021] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.
[0022] Example 1
[0023] See also Figure 1A pre-embedded part for connecting hanging bars of deep foundation pit piles, comprising an arc-shaped pre-embedded steel plate 1 matched with the outer side of the pile row 9, the pile row 9 is composed of a steel cage and concrete 6, the steel cage comprises longitudinal main bars 8 and spiral stirrups 7 and other components, the shape of the arc-shaped pre-embedded steel plate 1 is consistent with the outer side of the pile row 9, close to the edge of the pile row 9, a plurality of groups of L-shaped anchor steel bars 2 are arranged on the inner side of the arc-shaped pre-embedded steel plate 1 which is concave inward, and the plurality of groups of L-shaped anchor steel bars 2 can ensure the direct anchoring of the arc-shaped pre-embedded steel plate 1 and the concrete 6, after the hanging bars 11 are welded, the hanging bars 11 transmit force to the L-shaped anchor steel bars 2, and the L-shaped anchor steel bars 2 transmit force to the inside of the pile row 9.
[0024] Example 2
[0025] See also Figure 1 , Figure 2 and Figure 4 A pre-embedded part for connecting hanging bars of deep foundation pit piles, comprising an arc-shaped pre-embedded steel plate 1 matched with the outer side of the pile row 9, the pile row 9 is composed of a steel cage and concrete 6, the steel cage comprises longitudinal main bars 8 and spiral stirrups 7 and other components, the shape of the arc-shaped pre-embedded steel plate 1 is consistent with the outer side of the pile row 9, close to the edge of the pile row 9, a plurality of groups of L-shaped anchor steel bars 2 are arranged on the inner side of the arc-shaped pre-embedded steel plate 1 which is concave inward, and the plurality of groups of L-shaped anchor steel bars 2 can ensure the direct anchoring of the arc-shaped pre-embedded steel plate 1 and the concrete 6, after the hanging bars 11 are welded, the hanging bars 11 transmit force to the L-shaped anchor steel bars 2, and the L-shaped anchor steel bars 2 transmit force to the inside of the pile row 9.
[0026] A fixing rod 5 is provided on the inwardly concave inner side surface of the arc-shaped embedded steel plate 1, and a clamp 4 is provided at the free end of the fixing rod 5. The clamp 4 is composed of a thin steel sheet and a butterfly screw 3. The butterfly screw 3 locks the clamp 4 on the longitudinal main reinforcement 8 of the pile row 9. The embedded parts are temporarily fixed on the longitudinal main reinforcement 8 of the pile row 9 through the clamp 4. During construction, when the drilling is completed, the embedded parts are lowered together with the steel cage, and then concrete 6 is poured. The clamp 4 can ensure that the embedded parts are accurately positioned during the lowering process, and are not squeezed or displaced during the pouring of the concrete 6.
[0027] Example 3
[0028] See also Figure 1 , Figure 2 and Figure 4 A pre-embedded part for connecting hanging bars of deep foundation pit piles, comprising an arc-shaped pre-embedded steel plate 1 matched with the outer side of the pile row 9, the pile row 9 is composed of a steel cage and concrete 6, the steel cage includes longitudinal main bars 8 and spiral stirrups 7 and other components, the shape of the arc-shaped pre-embedded steel plate 1 is consistent with the outer side of the pile row 9,
[0029] Close to the edge of the row of piles 9, a plurality of groups of L-shaped anchor steel bars 2 are arranged on the inner side surface of the arc-shaped embedded steel plate 1 which is concave inwardly. The plurality of groups of L-shaped anchor steel bars 2 can ensure the direct anchoring of the arc-shaped embedded steel plate 1 and the concrete 6. After the hanger bars 11 are welded, the hanger bars 11 transmit force to the L-shaped anchor steel bars 2, and the L-shaped anchor steel bars 2 transmit force to the row of piles 9.
[0030] A fixing rod 5 is provided on the inwardly concave inner side surface of the arc-shaped embedded steel plate 1, and a clamp 4 is provided at the free end of the fixing rod 5. The clamp 4 is composed of a thin steel sheet and a butterfly screw 3. The butterfly screw 3 locks the clamp 4 on the longitudinal main reinforcement 8 of the pile row 9. The embedded parts are temporarily fixed on the longitudinal main reinforcement 8 of the pile row 9 through the clamp 4. During construction, when the drilling is completed, the embedded parts are lowered together with the steel cage, and then concrete 6 is poured. The clamp 4 can ensure that the embedded parts are accurately positioned during the lowering process, and are not squeezed or displaced during the pouring of the concrete 6.
[0031] Several groups of threaded holes are arranged on the inner side surface of the arc-shaped embedded steel plate 1, and the corresponding ends of several groups of L-shaped anchoring steel bars 2 are arranged with screw rods matching the threaded holes. The L-shaped anchoring steel bars 2 are arranged on the arc-shaped embedded steel plate 1 through the threaded structure. Several groups of L-shaped anchoring steel bars 2 can be rotated at different angles. On the one hand, it is convenient to avoid certain interfering parts on the steel cage and facilitate installation. On the other hand, the different angles of several groups of L-shaped anchoring steel bars 2 also increase the firmness of the combination with the reinforced concrete 6.
[0032] Diagonal bars are provided between the plurality of groups of L-shaped anchoring steel bars 2 and the inner side surfaces of the arc-shaped embedded steel plates 1, and the diagonal bars function as reinforcing bars.
[0033] Example 4
[0034] See also Figure 1 , Figure 2 and Figure 4 A pre-embedded part for connecting hanging bars of deep foundation pit piles, comprising an arc-shaped pre-embedded steel plate 1 matched with the outer side of the pile row 9, the pile row 9 is composed of a steel cage and concrete 6, the steel cage includes longitudinal main bars 8 and spiral stirrups 7 and other components, the shape of the arc-shaped pre-embedded steel plate 1 is consistent with the outer side of the pile row 9,
[0035] Close to the edge of the row of piles 9, a plurality of groups of L-shaped anchor steel bars 2 are arranged on the inner side surface of the arc-shaped embedded steel plate 1 which is concave inwardly. The plurality of groups of L-shaped anchor steel bars 2 can ensure the direct anchoring of the arc-shaped embedded steel plate 1 and the concrete 6. After the hanger bars 11 are welded, the hanger bars 11 transmit force to the L-shaped anchor steel bars 2, and the L-shaped anchor steel bars 2 transmit force to the row of piles 9.
[0036] A fixing rod 5 is provided on the inwardly concave inner side surface of the arc-shaped embedded steel plate 1, and a clamp 4 is provided at the free end of the fixing rod 5. The clamp 4 is composed of a thin steel sheet and a butterfly screw 3. The butterfly screw 3 locks the clamp 4 on the longitudinal main reinforcement 8 of the pile row 9. The embedded parts are temporarily fixed on the longitudinal main reinforcement 8 of the pile row 9 through the clamp 4. During construction, when the drilling is completed, the embedded parts are lowered together with the steel cage, and then concrete 6 is poured. The clamp 4 can ensure that the embedded parts are accurately positioned during the lowering process, and are not squeezed or displaced during the pouring of the concrete 6.
[0037] Several groups of threaded holes are arranged on the inner side surface of the arc-shaped embedded steel plate 1, and the corresponding ends of several groups of L-shaped anchoring steel bars 2 are arranged with screw rods matching the threaded holes. The L-shaped anchoring steel bars 2 are arranged on the arc-shaped embedded steel plate 1 through the threaded structure. Several groups of L-shaped anchoring steel bars 2 can be rotated at different angles. On the one hand, it is convenient to avoid certain interfering parts on the steel cage and facilitate installation. On the other hand, the different angles of several groups of L-shaped anchoring steel bars 2 also increase the firmness of the combination with the reinforced concrete 6.
[0038] Diagonal bars are provided between the plurality of groups of L-shaped anchoring steel bars 2 and the inner side surfaces of the arc-shaped embedded steel plates 1, and the diagonal bars function as reinforcing bars.
[0039] A second threaded hole is provided on the end face of the fixing rod 5 away from the arc-shaped embedded steel plate 1, and a second screw rod matching the second threaded hole is provided on the corresponding outer side face of the clamp 4. The second screw rod is arranged in the second threaded hole, and the clamp 4 is installed on the fixing rod 5 through the cooperation between the second screw rod and the second threaded hole. The clamps 4 of different diameters can be easily replaced to adapt to the diameters of different longitudinal main reinforcements 8.
[0040] During construction, the embedded part is first fixed to the longitudinal main reinforcement 8 of the steel cage by the clamp 4, and then lowered together with the steel cage, and then the concrete 6 is poured. The clamp 4 can ensure that the embedded part is accurately positioned during the lowering process, and the concrete 6 is not squeezed or displaced during the pouring process. After the excavation of the foundation pit, since the embedded part is on the outer surface of the pile 9, the suspension bar 11 can be directly welded to the arc-shaped embedded steel plate 1 after the excavation, and the other end of the suspension bar 11 is arranged in the surrounding purlin 12, which avoids the chiseling of the concrete 6, that is, there is no need to chisel out the concrete chiseling area 10 on the pile 9.
[0041] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.
Claims
1. A pre-embedded part for connecting hanging bars of deep foundation pit piles, characterized in that: It comprises an arc-shaped embedded steel plate (1) matched with the outer side surface of the pile row (9), and a plurality of groups of L-shaped anchoring steel bars (2) are arranged on the inner side surface of the arc-shaped embedded steel plate (1) which is concave inwardly; A fixing rod (5) is provided on the inwardly concave inner side surface of the arc-shaped embedded steel plate (1), and a clamp (4) is provided at the free end of the fixing rod (5).
2. The deep foundation pit pile hanging bar connection embedded part according to claim 1 is characterized in that: A plurality of groups of threaded holes are provided on the inner side surface of the arc-shaped embedded steel plate (1), and corresponding ends of the plurality of groups of L-shaped anchoring steel bars (2) are provided with screw rods that cooperate with the threaded holes. The L-shaped anchoring steel bars (2) are provided on the arc-shaped embedded steel plate (1) via a threaded structure.
3. The deep foundation pit pile hanging bar connection embedded part according to claim 1, characterized in that: Diagonal bars are provided between the plurality of groups of L-shaped anchoring steel bars (2) and the inner side surface of the arc-shaped embedded steel plate (1).
4. The deep foundation pit pile hanging bar connection embedded part according to claim 1, characterized in that: The fixing rod (5) is provided with a second threaded hole on the end surface away from the arc-shaped embedded steel plate (1), and the corresponding outer surface of the clamp (4) is provided with a second screw rod that cooperates with the second threaded hole, and the second screw rod is arranged in the second threaded hole.