A reinforcing bar anchorage node connection structure

Abstract

The application discloses a kind of anchorage node connecting structures of inserting reinforcing bar, belong to pier column reinforcing bar structure technical field, by two vertical face steel plate before pouring concrete, insert below ground and above the cross, to directly increase the strength and rigidity of this structure in this way, avoid the slippage of interface, avoid the opening amount of interface after impact is too large;Anchorage reinforcing bar is fixed by steel plate upper end, by anchoring portion inserts below the cross, the special unfolding structure of anchoring portion, can pass through the grid of cross, and unfold below the cross, after a plurality of anchoring portions are poured in concrete, form a three-dimensional network structure in the area below the cross, compared with the anchorage reinforcing bar of bending and welding, this structure increases the bonding performance of anchorage reinforcing bar and concrete;And, this structure is convenient and fast to install, network structure width is adjustable, adapts to different anchorage reinforcing bar distribution form and different width cross grid.

Description

Technical Field

[0001] This invention belongs to the technical field of reinforced concrete pier structures, and specifically relates to a dowel-type anchorage node connection structure. Background Technology

[0002] In construction projects such as road repair and bridge building, column structures are common supporting structures. During the casting of many foundation-type column structures, it is necessary to firmly solidify the column structure to the ground to ensure its stability. During the column casting process, a grid pattern needs to be laid inside the ground, with reinforcing bars inserted into the grid. The reinforcing bars are anchored below the grid, and the top of the reinforcing bars are solidified within the cast-in-place frame of the column.

[0003] Double-plate concrete columns consist of two vertical steel plates and a supporting frame between them as internal supports, along with reinforcing bars inserted into the ground to form a stable column structure. In existing technologies, the reinforcing bars inserted into the ground are straight-axis structures. To increase anchorage, welded bent reinforcing bars are chosen. However, the anchorage of welded bent structures is relatively low, and the overall stability of the column structure needs to be improved. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a reinforcing bar anchoring node connection structure, which improves the strength of the column structure by sinking the steel plate and the three-dimensional mesh anchoring structure of the reinforcing bars.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention includes a grid formed by interlaced steel bars, comprising a steel plate frame. The steel plate frame includes two vertical face steel plates and several strip steel plates. The strip steel plates are connected between the two face steel plates. The bottom edge of the face steel plates is recessed into the concrete ground and is located above the grid. Several vertical anchoring bars are provided between the two face steel plates. The upper end of each anchoring bar is fixed to the upper end of the steel plate frame, and the lower end of each anchoring bar has an anchoring part. The anchoring part includes a fixed seat, a sliding seat, a stop seat, and eight connecting rods. The fixed seat is fixed to the bottom end of the anchoring bar. The sliding seat is slidably disposed on the anchoring bar. The stop seat is fixed in the middle section of the anchoring bar and is located between the fixed seat and the sliding seat. The connecting rods are hinged in pairs. One end of each hinged connecting rod is hinged to the sliding seat, and the other end is hinged to the fixed seat. The bottom ends of the anchoring bars pass through the grid of the grid and unfold.

[0007] Furthermore, the hinge of the connecting rod is also provided with a connecting part, the connecting part including a rotating seat, the rotating seat being fixed on the hinge shaft of the connecting rod, a sliding rod being slidably provided on the rotating seat, a pressure plate being provided at the inner end of the sliding rod, a spring being provided between the pressure plate and the interior of the rotating seat, a barb being provided at the end of the sliding rod, the spring abutting against the pressure plate, causing the sliding rod to move into the interior of the rotating seat, and the barb hooking onto the hinge of the connecting rod of the adjacent anchoring part.

[0008] Furthermore, the fixed seat includes a seat ring, the connecting rod is hinged to the outside of the seat ring, the seat ring is coaxially provided with a threaded cylinder, the threaded cylinder has at least one clearance, the inner side of the threaded cylinder is interference-fitted with the anchoring bar, and the outer side of the threaded cylinder is threadedly connected with a locking nut. When the locking nut is rotated, the threaded cylinder is clamped to the end of the anchoring bar.

[0009] Furthermore, several bolts are fixed on both sides of the bottom end of the steel plate.

[0010] Furthermore, the stop is an elastic rubber ring, which is fitted onto the anchoring bar, and the outer diameter of the fitted rubber ring is larger than the inner diameter of the slide block.

[0011] Furthermore, the slide block is internally equipped with several rolling steel balls.

[0012] The beneficial effects of this invention are as follows:

[0013] This invention directly increases the strength and rigidity of the structure by inserting two vertical steel plates below the ground and above the grid before pouring concrete, thus preventing slippage and misalignment at the interface and avoiding excessive opening at the interface after impact. The steel plate frame, composed of the steel plates and strip steel plates, forms the internal framework of the columnar concrete structure. Compared to installing a skeleton structure between the steel plates, this structure directly uses steel plates to connect the two vertical steel plates, reducing the need for other steel structures. This structure has reliable load-bearing performance and a simple construction. Construction is convenient; the anchoring bars are fixed at the top by steel plates and inserted into the bottom of the grid through the anchoring part. The unique unfolding structure of the anchoring part can pass through the grid and unfold below the grid. After the concrete is poured, several anchoring parts form a three-dimensional mesh structure in the area below the grid. Compared with bent and welded anchoring bars, this structure increases the bonding performance between the anchoring bars and the concrete. In addition, this structure is easy and quick to install, and the width of the mesh structure is adjustable to adapt to different anchoring bar distribution patterns and grid widths.

[0014] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0016] Figure 1 This is an overall schematic diagram of the rib-type anchorage node connection structure according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the anchoring part according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the unfolded anchoring part according to an embodiment of the present invention;

[0019] Figure 4 This is a cross-sectional view of the connecting portion according to an embodiment of the present invention;

[0020] Figure 5 This is a cross-sectional view of the slide block according to an embodiment of the present invention;

[0021] The following markings are used in the attached diagram: 1. Grid mesh; 21. Face steel plate; 22. Strip steel plate; 3. Anchoring bar; 4. Anchoring part; 41. Fixed seat; 411. Seat ring; 412. Threaded cylinder; 4121. Clearance gap; 413. Locking nut; 42. Slide seat; 421. Steel ball; 43. Stop seat; 44. Connecting rod; 5. Connecting part; 51. Rotating seat; 52. Slide rod; 53. Pressure plate; 54. Spring; 55. Barb; 6. Bolt. Detailed Implementation

[0022] like Figures 1-5As shown, this invention discloses a reinforcing bar anchoring node connection structure, including a grid 1 formed by several intersecting reinforcing bars. A vertical reinforcing bar is fixed to the bottom side of each intersection point of the grid 1, forming a foundation reinforcing bar structure buried in the ground. The internal support structure of the columnar structure includes a steel plate frame. The steel plate frame includes two vertical face steel plates 21 and several strip steel plates 22. The strip steel plates 22 are connected between the two face steel plates 21, with the surface of the strip steel plates 22 perpendicular to the horizontal plane. The bottom edge of the face steel plates 21 is recessed into the concrete ground. Several bolts 6 are fixed to both sides of the bottom end of the face steel plates 21, taking care not to extend too far into the ground plane to avoid collision with the foundation reinforcing bars of the grid 1. The face steel plates 21 are located above the grid 1. Several vertical anchoring reinforcing bars 3 are provided between the two face steel plates 21. The upper end of the anchoring reinforcing bars 3 is fixed to the upper end of the steel plate frame, and the lower end of the anchoring reinforcing bars 3 is provided with an anchoring part 4. Figure 2 and Figure 3 As shown, the anchoring part 4 includes a fixed seat 41, a sliding seat 42, a stop seat 43, and eight connecting rods 44. The fixed seat 41 is fixed to the bottom end of the anchoring bar 3. The fixed seat 41 includes a seat ring 411. The connecting rods 44 are hinged to the outside of the seat ring 411. The seat ring 411 is coaxially provided with a threaded cylinder 412. At least one clearance gap 4121 is opened on the threaded cylinder 412. The inner side of the threaded cylinder 412 is interference-fitted with the anchoring bar 3. A locking nut 413 is threadedly connected to the outer side of the threaded cylinder 412. When the locking nut 413 is rotated, the threaded cylinder 412 is clamped to the end of the anchoring bar 3. The sliding seat 42 is slidably disposed on the anchoring bar 3, as shown in the figure. Figure 5 As shown, the slide block 42 has several rolling steel balls 421 rotatably mounted inside. Supported by the steel balls 421, the slide block 42 is ensured to be coaxial with the reinforcing bar while allowing it to slide smoothly on the reinforcing bar. The stop 43 is fixed in the middle section of the anchoring bar 3 and located between the fixed seat 41 and the slide block 42. The stop 43 is an elastic rubber ring that fits onto the anchoring bar 3. The outer diameter of the rubber ring after fitting is larger than the inner diameter of the slide block 42. The stop 43 is used to stop the slide block 42 from falling. The connecting rods 44 are of the same length and are hinged in pairs to form four sets of hinged connecting rods 44. One end of each hinged connecting rod 44 is hinged to the slide block 42, and the other end is hinged to the fixed seat 41. When the anchoring ribs 3 are inserted, the bottom ends of several anchoring ribs 3 pass through the grid of the grid 1. Under the grid's restraint, the unfolded anchoring part 4 retracts, the slide block 42 moves upward, and after the anchoring part 4 passes through the grid, under the action of gravity, the slide block 42 slides down and is stopped by the stop seat 43, forming the anchoring part 4 as shown in the figure. Figure 3 In the unfolded state, the position of the stop 43 can be adjusted before inserting the anchor bar 3, so that after inserting the anchor bar 3, all anchoring parts 4 unfold below the grid 1 and form a three-dimensional mesh anchoring structure.

[0023] In this design, by inserting two vertical steel plates 21 below the ground and above the grid 1 before pouring concrete, the strength and rigidity of the structure are directly increased, preventing slippage and misalignment at the interface and avoiding excessive opening at the interface after impact. The steel plate frame composed of the steel plates 21 and strip steel plates 22 forms the internal framework of the columnar concrete structure. Compared to installing a skeleton structure between the steel plates 21, this structure directly uses steel plates to connect the two vertical steel plates 21 instead of the original connectors, reducing the installation of other steel structures. This structure has reliable load-bearing performance and a simple construction. Construction is convenient; the anchoring bar 3 is fixed at the top by a steel plate and inserted below the grid 1 through the anchoring part 4. The unique unfolding structure of the anchoring part 4 can pass through the grid of the grid 1 and unfold below the grid 1. After the concrete is poured, several anchoring parts 4 form a three-dimensional mesh structure in the area below the grid 1. Compared with the anchoring bar 3 that is bent and welded, this structure increases the bonding performance between the anchoring bar 3 and the concrete. In addition, this structure is easy and quick to install, and the width of the mesh structure is adjustable to adapt to different distribution patterns of anchoring bars 3 and different widths of grid 1.

[0024] In further proposals, such as Figure 3 and Figure 4 As shown, the hinge of the connecting rod 44 is also provided with a connecting part 5. The connecting part 5 includes a rotating seat 51, which is fixed on the hinge shaft of the connecting rod 44. A sliding rod 52 is slidably provided on the rotating seat 51. A pressure plate 53 is provided at the inner end of the sliding rod 52. A spring 54 is provided between the pressure plate 53 and the interior of the rotating seat 51. A barb 55 is provided at the end of the sliding rod 52. The spring 54 abuts against the pressure plate 53, causing the sliding rod 52 to move into the interior of the rotating seat 51. The barb 55 hooks onto the hinge of the connecting rod 44 of the adjacent anchoring part 4.

[0025] like Figure 4 This structure uses a rotating seat 51 to make the movement direction of the hook 55 horizontal. Pulling the hook 55 hooks it to the hinge position of the adjacent connecting rod 44. Under the action of the spring 54, the hook 55 can firmly hook the hinge point of the connecting rod 44. Through the connection of the connecting part 5, the adjacent anchoring part 4 forms a preliminary fixed position before concrete pouring, avoiding the rotation of the anchoring part 4 during concrete pouring, which would cause the entire mesh structure to be misaligned and reduce the anchoring performance of the mesh structure. Compared with direct welding or wire binding, this structure is simple to connect and does not fix the hinge point, ensuring that the hinge point remains flexible after the connection is completed, so that the entire three-dimensional mesh structure can always be leveled and adjusted.

[0026] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A type of dowel-type anchorage node connection structure, comprising a grid (1) formed by several intersecting steel bars, characterized in that: The system includes a steel plate frame, which comprises two vertical steel plates (21) and several strip steel plates (22). The strip steel plates (22) are connected between the two steel plates (21). The bottom edge of the steel plates (21) is recessed into the concrete ground. The steel plates (21) are located above the grid (1). Several vertical anchoring bars (3) are provided between the two steel plates (21). The upper end of the anchoring bars (3) is fixed to the upper end of the steel plate frame. The lower end of the anchoring bars (3) is provided with an anchoring part (4). The anchoring part (4) includes a fixed seat (41) and a sliding seat. (42), stop (43) and eight connecting rods (44), the fixed seat (41) is fixed at the bottom end of the anchoring bar (3), the sliding seat (42) is slidably disposed on the anchoring bar (3), the stop (43) is fixed in the middle section of the anchoring bar (3) and located between the fixed seat (41) and the sliding seat (42), the connecting rods (44) are hinged in pairs, one end of the hinged connecting rod (44) is hinged to the sliding seat (42) and the other end is hinged to the fixed seat (41), and several anchoring bars (3) respectively pass through the grid of the grid (1) and unfold.

2. The dowel-type anchorage node connection structure according to claim 1, characterized in that: The connecting rod (44) is also provided with a connecting part (5) at the hinge. The connecting part (5) includes a rotating seat (51). The rotating seat (51) is fixed on the hinge shaft of the connecting rod (44). A slide rod (52) is slidably provided on the rotating seat (51). A pressure plate (53) is provided at the inner end of the slide rod (52). A spring (54) is provided between the pressure plate (53) and the interior of the rotating seat (51). A barb (55) is provided at the end of the slide rod (52). The spring (54) abuts against the pressure plate (53) to make the slide rod (52) move into the rotating seat (51). The barb (55) hooks the connecting rod (44) hinge of the adjacent anchoring part (4).

3. The dowel-type anchorage node connection structure according to claim 1, characterized in that: The fixed seat (41) includes a seat ring (411), the connecting rod (44) is hinged to the outside of the seat ring (411), the seat ring (411) is coaxially provided with a threaded cylinder (412), the threaded cylinder (412) has at least one clearance gap (4121), the inner side of the threaded cylinder (412) is interference-fitted with the anchoring bar (3), and the outer side of the threaded cylinder (412) is threadedly connected with a locking nut (413). When the locking nut (413) is rotated, the threaded cylinder (412) is clamped to the end of the anchoring bar (3).

4. The dowel-type anchorage node connection structure according to claim 1, characterized in that: Several bolts (6) are fixed on both sides of the bottom end of the steel plate (21).

5. The dowel-type anchorage node connection structure according to claim 1, characterized in that: The stop (43) is an elastic rubber ring, which is fitted onto the anchor bar (3). The outer diameter of the rubber ring after being fitted is larger than the inner diameter of the slide (42).

6. The dowel-type anchorage node connection structure according to claim 1, characterized in that: The slide (42) is equipped with a number of rolling steel balls (421) for rotation.

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