Miniature steel pipe pile and bearing platform connecting and anchoring structure
By installing stiffening plates, pile sleeves, studs, and lower fixing rods between the micro steel pipe piles and the concrete cap, and by using hot-dip galvanized steel and grouting technology, the problem of unreliable connection between the micro steel pipe piles and the concrete cap was solved, and the high load-bearing capacity and durability of the structure were achieved.
Patent Information
- Application Number
- CN202520458245.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The small force-transfer interface area between the miniature steel pipe pile and the concrete cap results in an unreliable connection, affecting the structure's load-bearing capacity and durability.
By installing stiffening plates, pile sleeves, studs, and lower fixing rods between the steel pipe piles and anchor plates, and using hot-dip galvanized Q355 steel, combined with grouting technology, the connection strength and stability are enhanced.
It improves the reliability of the connection between the micro steel pipe pile and the concrete cap, enhances the load-bearing capacity and durability of the structure, and ensures the stability and force transmission efficiency of the connection.
Smart Images
Figure CN223853376U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transmission line foundation construction technical field especially relates to a micro steel pipe pile and platform connection anchoring structure. BACKGROUND
[0002] In recent years, the power grid engineering construction presents the trend of whole process mechanization construction, in order to adapt to this development trend, the transmission line tower foundation design adopts the tower foundation structure of miniaturization processing, one form is to adopt micro steel pipe pile (diameter is generally 0.2-0.4m) and concrete platform combination, this combination can significantly save building materials, reduce engineering cost, be favorable to the popularization of mechanization construction. However, due to the small size of micro steel pipe pile, the steel-concrete connecting force transmission interface area is small, to ensure the reliable transmission of force between steel pipe pile and concrete platform, the connecting anchoring mode between the two is crucial. SUMMARY
[0003] In view of the deficiency of prior art, the utility model provides a micro steel pipe pile and platform connection anchoring structure, solves the technical problem proposed in above -mentioned background art.
[0004] To solve the above technical problem, the utility model provides the following technical scheme: a micro steel pipe pile and platform connection anchoring structure, including steel pipe pile and concrete platform, the upper end of steel pipe pile is welded with anchor plate and is anchored in concrete platform, and a plurality of stiffened plates are welded between the outside of steel pipe pile and the bottom of anchor plate, a reinforcing member is arranged between every two adjacent stiffened plates, the outside of steel pipe pile is further fixedly installed with a plurality of longitudinal equidistance distribution pile sleeve and a plurality of rows of pegs, the pile sleeve and peg are staggered, and a plurality of lower fixed rods that are evenly distributed in the circumferential direction of the axis of the steel pipe pile are installed at the lower end of the steel pipe pile.
[0005] Further, a plurality of the stiffened plates are evenly distributed in the circumferential direction of the axis of the steel pipe pile, and the number of stiffened plates is not less than six.
[0006] Further, the number of pegs in each row is not less than four, and a plurality of the pegs are evenly arranged along the outside of the steel pipe pile.
[0007] Further, the reinforcing member includes a connecting rod welded between two stiffened plates, a pair of bearing rods is welded at the top of the connecting rod, and the upper end of the bearing rod is welded with the bottom of the anchor plate.
[0008] Further, an injection hole and two lifting holes are formed in the anchor plate, the injection hole is arranged at the center position of the anchor plate, and the two lifting holes are arranged on the two sides of the injection hole respectively.
[0009] Further, the steel pipe pile and anchor plate are made of hot-dip galvanized Q355 steel.
[0010] Further, the length of the steel pipe pile extending into the concrete pile cap is 2-4 times the diameter of the steel pipe pile.
[0011] By the above technical scheme, the micro steel pipe pile and pile cap connecting and anchoring structure has at least the following beneficial effects:
[0012] 1. The micro steel pipe pile connecting point bearing capacity and force transmission efficiency can be effectively improved by the bolt, pile sleeve and lower fixing rod, the connection and force transmission of the structure in use are ensured to be reliable, the connection strength of the steel pipe pile and anchor plate is enhanced by the stiffening plate, the grouting technology is combined with cast-in-place concrete, a solid whole is formed, the connection between the micro steel pipe pile and the concrete pile cap is more reliable, and the bearing capacity and durability of the whole structure are effectively improved.
[0013] 2. The stiffening plates are connected by the reinforcing member, the stability of the stiffening plates is ensured, and the firmness of the anchor plate is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0014] The drawings described herein are used to provide further understanding of the present application, form a part of the present application, and are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:
[0015] Figure 1 It is a steel pipe pile and concrete pile cap structure schematic view of the present application;
[0016] Figure 2 It is a steel pipe pile structure schematic view of the present application;
[0017] Figure 3 It is a steel pipe pile top view of the present application;
[0018] Figure 4 It is an anchor plate top view of the present application.
[0019] In the drawings: 1, steel pipe pile; 11, anchor plate; 111, grouting hole; 112, hoisting hole; 12, stiffening plate; 13, reinforcing member; 131, connecting rod; 132, bearing rod; 14, pile sleeve; 15, bolt; 16, lower fixing rod; 2, concrete pile cap. DETAILED DESCRIPTION
[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0021] The existing micro steel pipe pile is small in size, and the steel-concrete connecting force transmission interface is small, so that the connecting and anchoring mode between the steel pipe pile and the concrete pile cap is crucial to ensure reliable transmission of force between the steel pipe pile and the concrete pile cap.
[0022] To solve the defects of the above-mentioned micro steel pipe pile in the installation process, please refer to Figures 1-4 The anchoring structure for connecting the micro steel pipe pile and the pile cap can make the connection between the micro steel pipe pile and the concrete pile cap more reliable, and improve the bearing capacity and durability of the whole structure. The anchoring structure takes the steel pipe pile 1 and the concrete pile cap 2 as the basis, the upper end of the steel pipe pile 1 is welded with an anchor plate 11 and anchored in the concrete pile cap 2, the cross sections of the concrete pile cap 2 and the anchor plate 11 are circular, and the diameter of the anchor plate 11 is greater than that of the concrete pile cap 2, a plurality of stiffening plates 12 are welded between the outer side of the steel pipe pile 1 and the bottom of the anchor plate 11, the stiffening plates 12 are used to assist the support of the anchor plate 11, to ensure the welding between the steel pipe pile 1 and the anchor plate 11, a reinforcing piece 13 is arranged between every two adjacent stiffening plates 12, the reinforcing piece 13 is used to connect the plurality of stiffening plates 12, to ensure the stability of the stiffening plates 12, so as to ensure the firmness of the anchor plate 11, a plurality of longitudinally equidistant pile sleeves 14 and a plurality of rows of dowels 15 are fixedly installed outside the steel pipe pile 1, the pile sleeves 14 and the dowels 15 are staggered, a plurality of lower fixing rods 16 are installed at the lower end of the steel pipe pile 1 and are uniformly distributed around the axis of the steel pipe pile 1, the dowels 15 can enhance the stability of the connection between the steel pipe pile 1 and the concrete pile cap 2, the pile sleeves 14 and the lower fixing rods 16 can increase the contact surface between the concrete pile cap 2 and the steel pipe pile 1, which is conducive to the combination of the concrete pile cap 2 and the steel pipe pile 1, and the dowels 15 can further ensure the reliability of the connection between the concrete pile cap 2 and the steel pipe pile 1.
[0023] In order to ensure the stability of the above-mentioned stiffening plates 12, the plurality of stiffening plates 12 are uniformly distributed around the axis of the steel pipe pile 1, and the number of the stiffening plates 12 is not less than six, the stiffening plates 12 can reinforce and enhance the connection strength between the top of the steel pipe pile 1 and the anchor plate 11.
[0024] In order to ensure the stability effect of the above-mentioned peg 15, the number of pegs 15 in each row is not less than four, and the plurality of pegs 15 are uniformly distributed about the axis of the steel pipe pile 1. The reasonable arrangement of the pegs 15 can effectively improve the bearing capacity and force transmission efficiency of the concrete cap 2 connection point, and ensure the reliability of the whole structure in the process of use.
[0025] Referring to Figure 2 As shown in the figure, the reinforcing member 13 includes a connecting rod 131 welded between the two stiffening plates 12, and a pair of bearing rods 132 welded on the top of the connecting rod 131, the upper end of the bearing rod 132 is welded with the bottom of the anchor plate 11, the connecting rod 131 can connect the originally separated stiffening plates 12 together, and then cooperate with the bearing rod 132 to connect with the anchor plate 11, so as to ensure the firmness between the anchor plate 11 and the steel pipe pile 1.
[0026] In order to facilitate the construction of the structure, the anchor plate 11 is provided with a grouting hole 111 and two hoisting holes 112, the grouting hole 111 is arranged at the center position of the anchor plate 11, and the two hoisting holes 112 are arranged on both sides of the grouting hole 111. The grouting hole 111 can be filled with grout, and the hoisting hole 112 can be hoisted for construction.
[0027] Further, the steel pipe pile 1 and the anchor plate 11 are made of Q355 steel material with hot galvanizing, which can enhance the corrosion resistance of the structure and prolong the service life.
[0028] Since the steel pipe pile 1 needs to have sufficient anchoring depth in the concrete cap 2 to ensure the stability of the steel pipe pile 1 in the concrete cap 2, the length of the steel pipe pile 1 extending into the concrete cap 2 is 2-4 times the diameter of the steel pipe pile 1, which can further ensure the reliability of the concrete cap 2.
[0029] The construction steps of the structure are as follows:
[0030] When the steel pipe pile is prefabricated, the peg 15 is welded to the outside of the steel pipe pile 1, the anchor plate 11 is welded to the top of the steel pipe pile 1, and the stiffening plate 12 is welded to connect the anchor plate 11 and the steel pipe pile 1. The plurality of separated stiffening plates 12 are connected by welding the reinforcing member 13, then the prefabricated steel pipe pile 1 is hoisted into the foundation pit, and finally the grouting operation is carried out through the grouting hole 111, and then the cast-in-place concrete cap 2 is cast, and the concrete cap 2 and the steel pipe pile 1 form a stable connection, which can effectively resist various external forces and ensure long-term stability.
[0031] It should be noted that in this paper, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A micro steel pipe pile and cap connecting anchoring structure comprising a steel pipe pile (1) and a concrete cap (2), characterized in that: The upper end of the steel pipe pile (1) is welded with an anchor plate (11) and anchored in a concrete cap (2), a plurality of stiffening plates (12) are welded between the outer side of the steel pipe pile (1) and the bottom of the anchor plate (11), a reinforcing piece (13) is arranged between each two adjacent stiffening plates (12), a plurality of longitudinally equidistantly distributed pile sleeves (14) and a plurality of rows of pegs (15) are further fixedly installed on the outer side of the steel pipe pile (1), the pile sleeves (14) and the pegs (15) are staggered, and a plurality of lower fixing rods (16) are uniformly distributed around the axis of the steel pipe pile (1) and arranged on the lower end of the steel pipe pile (1).
2. The micro steel pipe pile and pile cap connecting anchoring structure according to claim 1, characterized in that: A plurality of the stiffening plates (12) are uniformly arranged along the outer side of the steel pipe pile (1), and the number of the stiffening plates (12) is not less than six.
3. The micro steel pipe pile and pile cap connecting and anchoring structure according to claim 1, characterized in that: The number of each row of the pegs (15) is not less than four, and a plurality of the pegs (15) are uniformly arranged along the outer side of the steel pipe pile (1).
4. The micro steel pipe pile and pile cap connecting and anchoring structure according to claim 1, characterized in that: The reinforcing piece (13) comprises a connecting rod (131) welded between two stiffening plates (12), and a pair of bearing rods (132) welded on the top of the connecting rod (131), and the upper end of the bearing rod (132) is welded with the bottom of the anchor plate (11).
5. The micro steel pipe pile and pile cap connecting and anchoring structure according to claim 1, characterized in that: The anchor plate (11) is provided with one grouting hole (111) and two lifting holes (112), the grouting hole (111) is arranged at the center of the anchor plate (11), and the two lifting holes (112) are arranged on both sides of the grouting hole (111).
6. The micro steel pipe pile and pile cap connecting and anchoring structure according to claim 1, characterized in that: The steel pipe pile (1) and the anchor plate (11) are made of Q355 steel material with hot galvanizing.
7. The micro steel pipe pile and pile cap connecting and anchoring structure according to claim 1, characterized in that: The length of the steel pipe pile (1) anchored in the concrete cap (2) is 2-4 times of the diameter of the steel pipe pile (1).