Supporting and reinforcing structure for connection of prestressed pipe pile and waist beam
By installing connecting bars, anchor rods, anchor cables, and ring steel plates between the prestressed concrete pipe piles and the wainscoting, the problem of weak connection between the prestressed concrete pipe piles and the wainscoting was solved, the anti-slip capacity and connection stability of the wainscoting were improved, and the safety of the foundation pit support was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广州上承企业咨询有限公司
- Filing Date
- 2025-07-01
- Publication Date
- 2026-05-19
AI Technical Summary
When existing prestressed concrete pipe piles are connected to the wainscoting, there are problems such as weak connection, uneven settlement and slippage of the wainscoting, and micro-cracks, which affect the overall stress system of the foundation pit support and pose safety hazards.
Connecting bars are used to connect the main reinforcement bars of the cap beam and the main reinforcement bars of the waist beam, and anchor rods and anchor cables are used to fix them to the ground. Combined with ring steel plates and fixing plates, a stable support structure is formed, providing upward and reverse restraint forces to resist slippage.
It effectively improves the anti-slip capability of the wainscoting, enhances connection stability, reduces the impact of gravity, and ensures the safety and stability of the foundation pit support structure.
Smart Images
Figure CN224259396U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prestressed pipe pile technology, and in particular to a support and reinforcement structure for connecting prestressed pipe piles and waist beams. Background Technology
[0002] Prestressed concrete pipe piles are commonly used for foundation pit support, slope protection, and landslide control to withstand horizontal earth pressure or landslide thrust.
[0003] Existing prestressed concrete pipe piles often require the installation of a wainscoting. The construction process for connecting the wainscoting to the prestressed concrete pipe pile typically involves pouring concrete into the hollow part of the prestressed concrete pipe pile at the wainscoting location, and then connecting the wainscoting by roughening the pile body and installing reinforcing bars. The traditional connection structure between the prestressed concrete pipe pile and the wainscoting has the following shortcomings:
[0004] 1. Due to the high strength of the concrete and the presence of prestress inside the pile body, it is not advisable to roughen the pile body for rebar installation. Furthermore, the surface of the prestressed concrete pipe pile is relatively smooth, which makes it difficult for the concrete of the lintel to form a reliable connection with the pipe pile.
[0005] 2. During the curing period, before the anchor cables are prestressed, the concrete of the wainscoting is subjected to gravity, which makes it prone to uneven downward sliding and settlement, and vertical cracks. The downward sliding of the existing wainscoting will cause micro-cracks in the wainscoting and change the angle of the vertical force-bearing surface of the anchor plate base, making it impossible to form a consistent force-bearing angle. When the anchor cables are prestressed later, the downward sliding and cracking deformation of the wainscoting will be accelerated, which will have an adverse effect on the overall force-bearing system of the foundation pit support, resulting in safety hazards during the foundation pit excavation stage and the main structure construction stage.
[0006] Therefore, it is necessary to provide a support and reinforcement structure for the connection between prestressed pipe piles and lintels to solve the above-mentioned technical problems. Utility Model Content
[0007] To solve the above-mentioned technical problems, this utility model provides a support and reinforcement structure for the connection between prestressed pipe piles and waist beams.
[0008] This utility model provides a support and reinforcement structure for connecting prestressed pipe piles and a waist beam, comprising: a pipe pile and a waist beam fixed to the middle of one side of the pipe pile. A cap beam is fixedly connected to the top of the pipe pile, and the main reinforcement bars of the cap beam are tied inside the cap beam. The main reinforcement bars of the waist beam are tied inside the waist beam, and the two ends of the cap beam main reinforcement bars and the waist beam main reinforcement bars are connected to the connecting bars. A first anchor rod and a second anchor rod are respectively connected through the two ends of the waist beam. One end of the first anchor rod passes through the waist beam and is fixed to the outside of the waist beam by a first anchor head. The other end of the first anchor rod extends to the other side of the pipe pile, and a first anchor cable is fixedly connected to the outside of the other end of the first anchor rod. One end of the second anchor rod passes through the waist beam and is fixed to the outside of the waist beam by a second anchor head. The other end of the second anchor rod extends to the other side of the pipe pile, and a second anchor cable is fixedly connected to the outside of the other end of the second anchor rod.
[0009] Preferably, the connecting bar includes a main bar body, with a first connector and a second connector respectively connecting the two ends of the main bar body. One end of the first connector and the second connector are respectively spirally wound around the main bar of the cap beam and the main bar of the waist beam.
[0010] Preferably, there are multiple connecting ribs, which are linearly and equidistantly distributed between the cap beam and the waist beam.
[0011] Preferably, the outer side of the pipe pile is covered with an annular steel plate, and the inner wall of the annular steel plate is fixedly connected to the pipe pile by a plurality of anchoring steel bars distributed in an annular array. The top of the annular steel plate is fixedly connected to the bottom of the waist beam.
[0012] Preferably, the first anchor cable and the second anchor cable are respectively fixed to both ends of the side of the fixed plate made of concrete, and the bottom of the fixed plate is cast on the ground.
[0013] Preferably, a steel mesh is embedded inside the top of the pipe pile, and the top of the pipe pile is connected to the main reinforcement of the capping beam through the steel mesh.
[0014] Compared with related technologies, the support and reinforcement structure for connecting prestressed pipe piles and waist beams provided by this utility model has the following beneficial effects:
[0015] 1. This utility model connects the two ends of the connecting bar to the main reinforcement of the cap beam and the main reinforcement of the waist beam, thereby connecting the cap beam and the waist beam. The cap beam can provide an upward restraining force for the waist beam, which is sturdy and reliable and plays an anti-slip role, effectively resisting the slippage of the waist beam. Furthermore, by setting the first anchor rod and the second anchor rod fixed to the waist beam and connecting the first anchor rod and the second anchor rod to the ground through the first anchor cable and the second anchor cable respectively, a restraining force opposite to the slippage direction of the waist beam is provided to the waist beam, further improving the anti-slip effect of the waist beam.
[0016] 2. By setting up an annular steel plate, this utility model can reduce the impact of gravity on the waist beam by supporting the bottom of the waist beam, thereby improving the stability of the waist beam installation.
[0017] 3. By setting a fixed plate cast on the ground, this utility model can be connected to the first anchor cable and the second anchor cable, thereby forming the first anchor cable and the second anchor cable into a whole, increasing the magnitude of the constraint force on the waist beam that is opposite to the sliding direction of the waist beam, and further improving the anti-slip function of the waist beam. Attached Figure Description
[0018] Figure 1 A schematic diagram of a preferred embodiment of the support and reinforcement structure for connecting prestressed pipe piles and waist beams provided by this utility model;
[0019] Figure 2 for Figure 1 The diagram shown is a right-view structural schematic of a support and reinforcement structure for connecting prestressed pipe piles and waist beams.
[0020] Figure 3 for Figure 1 The diagram shown is a schematic image of a support and reinforcement structure for connecting prestressed pipe piles and waist beams from a lower perspective.
[0021] Figure 4 for Figure 1 The diagram shows the structural schematic of the connecting ribs;
[0022] The following are the labeling elements in the diagram: 1. Pipe pile; 2. Crown beam; 3. Waist beam; 4. Main reinforcement of the crown beam; 5. Main reinforcement of the waist beam; 6. Connecting reinforcement; 7. First anchor rod; 8. First anchor head; 9. First anchor cable; 10. Second anchor rod; 11. Second anchor head; 12. Fixing plate; 13. Annular steel plate; 14. Second anchor cable; 15. Reinforcing mesh; 16. Main reinforcement body; 17. First connector; 18. Second connector. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] refer to Figures 1 to 4This utility model provides a support and reinforcement structure for connecting prestressed pipe piles and waist beams, comprising: a pipe pile 1 and a waist beam 3 fixed to the middle of one side of the pipe pile 1. A capping beam 2 is fixedly connected to the top of the pipe pile 1. The capping beam 2 has main reinforcing bars 4 tied inside it. The waist beam 3 has main reinforcing bars 5 tied inside it. The capping beam main reinforcing bars 4 and waist beam main reinforcing bars 5 are connected to the two ends of connecting bars 6. A first anchor rod 7 and a second anchor rod 10 are respectively connected through the two ends of the waist beam 3. One end of the first anchor rod 7 passes through the waist beam 3 and is fixed to the outside of the waist beam 3 by a first anchor head 8. The other end of the first anchor rod 7 extends to the other side of the pipe pile 1. A first anchor cable 9 is fixedly connected to the outside of the other end of the first anchor rod 7. One end of the second anchor rod 10 passes through the waist beam 3 and is fixed to the outside of the waist beam 3 by a second anchor head 11. The other end of the second anchor rod 10 extends to the other side of the pipe pile 1. A second anchor cable 14 is fixedly connected to the outside of the other end of the second anchor rod 10.
[0025] In the embodiments of this utility model, reference is made to Figure 4 As shown, the connecting bar 6 includes a main bar body 16, and the two ends of the main bar body 16 are respectively connected to a first connecting member 17 and a second connecting member 18. One end of the first connecting member 17 and the second connecting member 18 are respectively spirally wound on the main bar 4 of the cap beam and the main bar 5 of the waist beam.
[0026] In the embodiments of this utility model, reference is made to Figure 1 As shown, there are multiple connecting ribs 6, which are linearly and equidistantly distributed between the cap beam 2 and the waist beam 3.
[0027] It should be noted that: by connecting the two ends of the connecting bar 6 to the main bar 4 of the cap beam and the main bar 5 of the waist beam, the cap beam 2 and the waist beam 3 are connected. The cap beam 2 can provide an upward restraint force for the waist beam 3, which is strong and reliable and plays an anti-slip role, effectively resisting the slippage of the waist beam 3. Furthermore, by setting the first anchor rod 7 and the second anchor rod 10 fixed to the waist beam 3, and connecting the first anchor rod 7 and the second anchor rod 10 to the ground through the first anchor cable 9 and the second anchor cable 14 respectively, the waist beam 3 is provided with a restraint force opposite to the slippage direction of the waist beam 3, which further improves the anti-slip effect of the waist beam 3 and effectively resists the slippage of the waist beam 3. Furthermore, by setting one end of the first connector 17 and the second connector 18 to be spirally wound on the main reinforcement of the cap beam 4 and the main reinforcement of the waist beam 5 respectively, the stability of the connection between the connecting reinforcement 6 and the main reinforcement of the cap beam 4 and the main reinforcement of the waist beam can be improved through multiple turns of the corresponding connectors. By setting multiple connecting reinforcements 6, the stability of the connection between the connecting reinforcement 6 and the main reinforcement of the cap beam 4 and the main reinforcement of the waist beam 5 can be further improved through the cooperation of multiple connecting reinforcements 6.
[0028] In the embodiments of this utility model, reference is made to Figure 2As shown, the outer side of the pipe pile 1 is covered with an annular steel plate 13, and the inner wall of the annular steel plate 13 is fixedly connected to the pipe pile 1 by a plurality of anchoring steel bars distributed in an annular array. The top of the annular steel plate 13 is fixedly connected to the bottom of the waist beam 3.
[0029] It should be noted that by setting the annular steel plate 13, the bottom of the waist beam 3 can be supported by the annular steel plate 13, thereby reducing the influence of gravity on the waist beam 3 and improving the stability of the waist beam 3 installation.
[0030] In the embodiments of this utility model, reference is made to Figure 1 As shown, the first anchor cable 9 and the second anchor cable 14 are respectively fixed to both ends of a concrete fixing plate 12, the bottom of which is cast on the ground.
[0031] It should be noted that by setting a fixed plate 12 cast on the ground, it can be connected to the first anchor cable 9 and the second anchor cable 14, thereby forming the first anchor cable 9 and the second anchor cable 14 into a whole, increasing the magnitude of the constraint force on the waist beam 3 opposite to the sliding direction of the waist beam 3, and further improving the anti-slip function of the waist beam 3.
[0032] In the embodiments of this utility model, reference is made to Figure 3 As shown, a steel mesh 15 is embedded inside the top of the pipe pile 1, and the top of the pipe pile 1 is connected to the main reinforcement 4 of the cap beam through the steel mesh 15.
[0033] The working principle of the support and reinforcement structure for connecting prestressed pipe pile 1 and waist beam 3 provided by this utility model is as follows:
[0034] By connecting the two ends of the connecting rib 6 to the main reinforcement bars 4 of the cap beam and 5 of the waist beam, the cap beam 2 and the waist beam 3 are connected. The cap beam 2 can provide an upward constraint force for the waist beam 3, which is strong and reliable and plays an anti-slip role, effectively resisting the slippage of the waist beam 3. By setting the first anchor rod 7 and the second anchor rod 10 fixed to the waist beam 3, and connecting the first anchor rod 7 and the second anchor rod 10 to the ground through the first anchor cable 9 and the second anchor cable 14 respectively, the constraint force on the waist beam 3 is provided in the opposite direction of the slippage of the waist beam 3, further improving the anti-slip effect of the waist beam 3 and effectively resisting the slippage of the waist beam 3. By setting the first connector 17 and the second connector 18, one end of which is spirally wound on the main reinforcement bars 4 of the cap beam and the main reinforcement bars 5 of the waist beam, the stability of the connection between the connecting rib 6 and the main reinforcement bars 4 of the cap beam and the main reinforcement bars 5 of the waist beam can be improved through multiple turns of the corresponding connectors. By setting multiple connecting ribs 6, the stability of the connection between the connecting rib 6 and the main reinforcement bars 4 of the cap beam and the main reinforcement bars 5 of the waist beam can be further improved through the cooperation of multiple connecting ribs 6.
[0035] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A support and reinforcement structure for connecting prestressed pipe piles and lintel beams, characterized in that, include: Pipe pile (1) and waist beam (3) fixed in the middle of one side of pipe pile (1). The top of pipe pile (1) is fixedly connected to crown beam (2). The crown beam (2) is tied with crown beam main reinforcement (4). The waist beam (3) is tied with waist beam main reinforcement (5). The crown beam main reinforcement (4) and waist beam main reinforcement (5) are connected to the two ends of connecting reinforcement (6). The two ends of waist beam (3) are respectively connected with first anchor rod (7) and second anchor rod (10). One end of the first anchor rod (7) passes through waist beam (3) and through... The first anchor head (8) is fixed to the outside of the waist beam (3). The other end of the first anchor rod (7) extends to the other side of the pipe pile (1). The other end of the first anchor rod (7) is fixedly connected to the outside of the first anchor cable (9). One end of the second anchor rod (10) passes through the waist beam (3) and is fixed to the outside of the waist beam (3) through the second anchor head (11). The other end of the second anchor rod (10) extends to the other side of the pipe pile (1). The other end of the second anchor rod (10) is fixedly connected to the outside of the second anchor cable (14).
2. The support and reinforcement structure for connecting prestressed pipe piles and waist beams according to claim 1, characterized in that, The connecting bar (6) includes a main bar body (16), and the two ends of the main bar body (16) are respectively connected to a first connector (17) and a second connector (18). One end of the first connector (17) and the second connector (18) are respectively spirally wound on the main bar of the crown beam (4) and the main bar of the waist beam (5).
3. The support and reinforcement structure for connecting prestressed pipe piles and waist beams according to claim 2, characterized in that, The number of connecting bars (6) is multiple, and the connecting bars (6) are linearly and equidistantly distributed between the cap beam (2) and the waist beam (3).
4. The support and reinforcement structure for connecting prestressed pipe piles and waist beams according to claim 1, characterized in that, The outer side of the pipe pile (1) is covered with an annular steel plate (13). The inner wall of the annular steel plate (13) is fixedly connected to the pipe pile (1) by multiple anchoring steel bars distributed in an annular array. The top of the annular steel plate (13) is fixedly connected to the bottom of the waist beam (3).
5. A support and reinforcement structure for connecting prestressed pipe piles and waist beams according to claim 1, characterized in that, The first anchor cable (9) and the second anchor cable (14) are respectively fixed at both ends of a concrete fixing plate (12), the bottom of which is cast on the ground.
6. The support and reinforcement structure for connecting prestressed pipe piles and waist beams according to claim 1, characterized in that, The top of the pipe pile (1) is embedded with a steel mesh (15), and the top of the pipe pile (1) is connected to the main reinforcement (4) of the cap beam through the steel mesh (15).