Square pile and bearing platform steel bar connecting structure
The square pile and the cap reinforcement are connected by an internal threaded sleeve and an external threaded pier head body or a conversion connector, combined with the steel mesh and concrete layer, which solves the problems of welding instability and hammer damage and achieves a high-stability and low-cost connection.
Patent Information
- Application Number
- CN202422978851.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The existing welding connection between square piles and foundation steel bars is unstable, and the pile heads are easily damaged during hammering, resulting in poor connection stability.
Use internal thread sleeve and external thread pier head body or conversion connector to connect square pile and foundation reinforcement, combine steel mesh and concrete layer to strengthen the connection structure and avoid hammer damage.
The connection between the square piles and the foundation reinforcement is achieved with a simple structure, reliable connection quality, low cost and high connection stability, thereby enhancing the compressive resistance.
Smart Images
Figure CN223458839U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to square pile and reinforced connecting structure technical field, concretely speaking, a square pile and reinforced connecting structure with simple structure, reliable connection quality, low cost and high connection stability. BACKGROUND
[0002] It is known that the existing square pile is placed below the ground by hammering to be used as a foundation pile, the steel bars of the square pile are connected with the steel bars of the pile cap when the exposed height of the square pile reaches the required height, the existing square pile steel bars and the pile cap steel bars are connected by welding, the connection structure is unstable, the stability is low, and in the process of hammering the square pile, the pile head part can be damaged, the exposed square pile steel bars have poor compression resistance, and the connection stability between the pile cap and the square pile is poorer. SUMMARY
[0003] The utility model discloses a square pile and reinforced connecting structure with simple structure, reliable connection quality, low cost and high connection stability.
[0004] The utility model discloses the technical scheme that solves its technical problem is:
[0005] A square pile and reinforced connecting structure is provided with a square pile body, square pile steel bars are arranged in the square pile body, the upper end of the square pile steel bars is connected with a sleeve, the upper end face of the sleeve is exposed and flush with the upper end face of the square pile body, an internal thread is arranged on the upper end face of the sleeve, and the upper end face of the sleeve is connected with pile cap steel bars through a connecting piece.
[0006] The connecting piece is the lower end part of the pile cap steel bars, the lower end part of the pile cap steel bars is a pier head body with a large diameter, the outer wall of the pier head body is provided with an external thread matched with the internal thread of the sleeve, and the pile cap steel bars are connected with the internal thread of the sleeve through the pier head body.
[0007] The connecting piece is a conversion connector, the conversion connector comprises a small head end part and a large head end part in a cylindrical shape, the small head end part and the large head end part are integrally connected, the external thread matched with the internal thread of the sleeve is arranged on the outer part of the small head end part, the large head end part is provided with a groove with an internal thread matched with the external thread of the lower end of the pile cap steel bars, the pile cap steel bars are connected with the external thread of the lower end of the pile cap steel bars through the groove, and the pile cap steel bars are connected with the internal thread of the sleeve through the conversion connector.
[0008] The square pile body includes a support rod part and a pressure bearing top part, the pressure bearing top part includes a square sleeve, a steel mesh and a concrete layer, the square sleeve is internally provided with the steel mesh, the steel mesh includes horizontal steel bars and vertical steel bars, the horizontal steel bars and the vertical steel bars are connected to form a mesh-shaped steel mesh, the end portions of the horizontal steel bars and the vertical steel bars are bent and welded with the square sleeve, the concrete layer wrapping the steel mesh is pre-buried in the square sleeve, and the concrete layer and the support rod part are integrally formed to form a square pile whole body.
[0009] The bearing platform steel is a three-grade screw steel, and the diameter of the three-grade screw steel is 16-25 mm.
[0010] The square sleeve is formed by rolling and pressing a steel plate, the thickness of the steel plate is 1.5-4 mm, and the width of the steel plate is 100-200 mm.
[0011] The square sleeve is provided with annular grooves, the annular grooves are arranged in parallel and in two numbers, and the rigidity of the sleeve is increased.
[0012] The diameters of the horizontal steel bars and the vertical steel bars are 8-12 mm, and the interval between the horizontal steel bars and the vertical steel bars is 60-100 mm.
[0013] The bending angles of the two end portions of the horizontal steel bars and the vertical steel bars are 90 degrees, and the length of the connecting part between the bent horizontal steel bars and the vertical steel bars and the square sleeve is 20-30 mm.
[0014] Two steel meshes are arranged in parallel in the square sleeve, the steel meshes are arranged in parallel and symmetrically in the square sleeve, and the two end portions of the horizontal steel bars and the vertical steel bars of the two steel meshes are bent towards the openings of the square sleeve, respectively.
[0015] The utility model discloses a square pile body including a support rod part and a pressure bearing top part, the pressure bearing top part includes a square sleeve, a steel mesh and a concrete layer, the square sleeve is internally provided with the steel mesh, the steel mesh includes horizontal steel bars and vertical steel bars, the horizontal steel bars and the vertical steel bars are connected to form a mesh-shaped steel mesh, the end portions of the horizontal steel bars and the vertical steel bars are bent and welded with the square sleeve, the concrete layer wrapping the steel mesh is pre-buried in the square sleeve, and the concrete layer and the support rod part are integrally formed to form a square pile whole body. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the structure schematic view of the first connecting piece and the square pile body connection relation of the utility model.
[0017] Figure 2 It is Figure 1 The structure schematic view of the bearing platform steel.
[0018] Figure 3 It is the structure schematic view of the second connecting piece and the square pile body connection relation of the utility model.
[0019] Figure 4 It is Figure 1Structure diagram of the middle conversion connector.
[0020] Figure 5 Structure diagram of the pressure bearing top of the square pile body. DETAILED DESCRIPTION
[0021] The utility model is further described below in combination with the drawings:
[0022] As shown in the drawings, a square pile and bearing platform steel bar connecting structure is provided with a square pile body, square pile steel bars are arranged in the square pile body, the upper end of the square pile steel bar is connected to a sleeve 2, the upper end surface of the sleeve 2 is exposed and flush with the upper end surface of the square pile body, an internal thread is arranged on the upper end surface of the sleeve 2, the upper end surface of the sleeve 2 is connected to a bearing platform steel bar 3 through a connecting piece, the square pile body comprises a support rod part 4 and a pressure bearing top 5, the pressure bearing top 5 comprises a square sleeve hoop 6, a steel bar mesh 7 and a concrete layer 8, the square sleeve hoop 6 is provided with the steel bar mesh 7, the steel bar mesh 7 comprises horizontal steel bars 9 and vertical steel bars 10, the horizontal steel bars 9 and the vertical steel bars 10 are connected to form the mesh-shaped steel bar mesh 7, the end portions of the horizontal steel bars 9 and the vertical steel bars 10 are bent and welded to the square sleeve hoop 6, the concrete layer 8 wrapping the steel bar mesh 7 is pre-embedded in the square sleeve hoop 6, and the concrete layer 8 and the support rod part 4 are integrally formed to form a square pile whole, the square pile steel bars of the support rod part 4 extend into the concrete layer 8 and are connected to the sleeve 2, the bearing platform steel bar 3 is a three-grade screw steel bar, the diameter of the three-grade screw steel bar is 16-25 mm, the square sleeve hoop 6 is formed by rolling and pressing a steel plate, the thickness of the steel plate is 1.5-4 mm, the width of the steel plate is 100-200 mm, the square sleeve hoop 6 is provided with annular grooves 1, the annular grooves 1 are arranged in parallel in two numbers to increase the rigidity of the sleeve hoop, the diameter of the horizontal steel bars 9 and the vertical steel bars 10 is 8-12 mm, the horizontal steel bars 9 and the vertical steel bars 10 are arranged at intervals with a spacing of 60-100 mm, the bending angle of the end portions of the horizontal steel bars 9 and the vertical steel bars 10 is 90 degrees, the length of the connection part of the horizontal steel bars 9 and the vertical steel bars 10 to the square sleeve hoop 6 after bending is 20-30 mm, two steel bar meshes 7 are arranged in parallel in the square sleeve hoop 6, the steel bar meshes 7 are arranged in parallel and symmetrically in the square sleeve hoop 6, and the end portions of the horizontal steel bars 9 and the vertical steel bars 10 of the two steel bar meshes 7 are bent towards the openings of the square sleeve hoop 6 respectively.
[0023] The connecting piece is divided into two kinds: the first kind of connecting piece is the lower end of the pile cap steel bar 3, the lower end of the pile cap steel bar 3 is a pier head body 11 with a large diameter, the outer wall of the pier head body 11 is provided with external threads matched with the internal threads of the sleeve 2, the pile cap steel bar 3 is connected with the internal threads of the sleeve 2 through the pier head body 11, and the second kind of connecting piece is a conversion connector 12, the conversion connector 12 comprises a small head end 13 and a large head end 14, the small head end 13 and the large head end 14 are integrally connected, the small head end 13 is externally provided with external threads matched with the internal threads of the sleeve 2, the large head end 14 is provided with a groove with internal threads matched with the external threads of the lower end of the pile cap steel bar 3, the pile cap steel bar 3 is connected with the external threads of the lower end of the pile cap steel bar 3 through the groove, and the pile cap steel bar 3 is connected with the internal threads of the sleeve 2 through the conversion connector 12.
[0024] In the process of manufacturing the square pile, two layers of steel mesh 7 are welded in the square sleeve hoop 6, the end portions of the horizontal steel bars 9 and the vertical steel bars 10 of the steel mesh 7 are bent by 90° and welded with the square sleeve hoop 6, the lower end of the square sleeve hoop 6 is sleeved on the end portion of the support rod portion 4, then the upper end bare portion of the support rod portion 4 is provided with the square pile steel bar and the sleeve 2, the sleeve 2 and the square pile steel bar are embedded in the concrete layer 8 filled in the square sleeve hoop 6, prestress tension is performed on the sleeve 2 and the square pile steel bar through a tensioning machine and a tensioning plate, the upper end of the sleeve 2 is exposed and flush with the upper end face of the square sleeve hoop 6, and an end plate is not needed to be installed, in the process of installing the square pile body, the upper end portion of the square pile body 1 needs to be hammered, in the process of hammering, the steel mesh 7 in the square sleeve hoop 6 is welded with the square sleeve hoop 6, the bearing capacity of the square sleeve hoop 6 is increased, the square sleeve hoop 6 is not easy to deform under the connection action of the steel mesh 7 and tightly clamps the concrete layer 8, so that the concrete layer 8 cannot be broken by hammering, and the quality is very reliable, when the exposed height of the square pile reaches a preset height, the sleeve 2 of the square pile is connected with the pile cap steel bar 3 above, the first method is that the lower end of the pile cap steel bar 3 is punched to form a pier head body 11, the outer side of the pier head body 11 is provided with external threads matched with the internal threads of the sleeve 2, and the connection strength between the pile cap steel bar 3 and the sleeve 2 and the square pile steel bar is increased, the second method is that the conversion connector 12 is connected below the pile cap steel bar 3, the large head end 14 of the conversion connector 12 is connected with the external threads of the lower end of the pile cap steel bar 3, and the small head end 13 of the conversion connector 12 is connected with the internal threads of the sleeve 2, and then the connection between the pile cap steel bar 3 and the sleeve 2 and the square pile steel bar is completed, and the strength and stability of the connection between the pile cap steel bar 3 and the square pile steel bar and the sleeve 2 are further increased due to the arrangement of the square sleeve hoop 6 and the steel mesh 7, the concrete at the position of the sleeve 2 is not easy to break, and therefore the strength and stability of the connection between the pile cap steel bar 3 and the square pile steel bar and the sleeve 2 are further increased.
Claims
1. A square pile and cap steel bar connecting structure, provided with a square pile body, a square pile steel bar arranged in the square pile body, an upper end of the square pile steel bar being connected to a sleeve, an upper end surface of the sleeve being exposed and flush with an upper end surface of the square pile body, an inner thread being arranged on the upper end surface of the sleeve, the upper end surface of the sleeve being connected to a cap steel bar through a connecting piece, the square pile body comprising a support rod part and a pressure bearing top part, the pressure bearing top part comprising a square sleeve, a steel bar mesh and a concrete layer, the square sleeve being provided with the steel bar mesh, the steel bar mesh comprising horizontal steel bars and vertical steel bars, the horizontal steel bars and the vertical steel bars being connected to form a mesh-shaped steel bar mesh, end portions of the horizontal steel bars and the vertical steel bars being bent and welded to the square sleeve, the concrete layer wrapping the steel bar mesh being pre-embedded in the square sleeve, the concrete layer and the support rod part being integrally formed to form a square pile as a whole, the square pile steel bar of the support rod part extending into the concrete layer and being connected to the sleeve.
2. The square pile and cap reinforcement connection structure according to claim 1, characterized in that The connecting piece is a lower end portion of the cap steel bar, the lower end portion of the cap steel bar being a pier head body with a large diameter, the outer wall of the pier head body being provided with an external thread matched with the internal thread of the sleeve, the cap steel bar being connected to the sleeve through the internal thread of the sleeve and the external thread of the pier head body.
3. The square pile and cap reinforcement connection structure according to claim 1, characterized in that The connecting piece is a conversion connector, the conversion connector comprising a small head end portion and a large head end portion, the small head end portion and the large head end portion being integrally connected, the small head end portion being provided with an external thread matched with the internal thread of the sleeve, the large head end portion being provided with a groove with an internal thread matched with the external thread of the lower end of the cap steel bar, the cap steel bar being connected to the cap steel bar through the groove and the external thread of the lower end of the cap steel bar, the cap steel bar being connected to the sleeve through the conversion connector and the internal thread of the sleeve.
4. The square pile and pile cap steel bar connecting structure according to claim 3, characterized in that The cap steel bar is a three-grade threaded steel bar, the diameter of the three-grade threaded steel bar being 16-25 mm.
5. The square pile and cap reinforcement connection structure according to claim 1, characterized in that The square sleeve is formed by rolling and pressing a steel plate, the thickness of the steel plate being 1.5-4 mm, the width of the steel plate being 100-200 mm.
6. The square pile and pile cap steel bar connecting structure according to claim 1, characterized in that The square sleeve is provided with annular grooves, the annular grooves being arranged in two and parallel, the rigidity of the sleeve being increased.
7. The square pile and pile cap steel bar connecting structure according to claim 1, characterized in that The diameters of the horizontal steel bars and the vertical steel bars are 8-12 mm, the horizontal steel bars and the vertical steel bars being arranged at intervals with a spacing of 60-100 mm.
8. The square pile and pile cap steel bar connecting structure according to claim 1, characterized in that The bending angles of the two end portions of the horizontal steel bars and the vertical steel bars are 90 degrees, the lengths of the connection portions of the horizontal steel bars and the vertical steel bars to the square sleeve after being bent being 20-30 mm.
9. The square pile and pile cap steel bar connecting structure according to claim 1, characterized in that Two steel bar meshes are arranged in parallel in the square sleeve, the steel bar meshes being arranged in parallel and symmetrically in the square sleeve, the two end portions of the horizontal steel bars and the vertical steel bars of the two steel bar meshes being bent towards the openings of the square sleeve, respectively.