Reinforcement cage butt joint structure for bridge construction

Abstract

The utility model relates to a steel reinforcement cage butt joint structure for bridge construction, which comprises a first positioning ring arranged at the top of a first steel reinforcement cage, a second positioning ring arranged at the bottom of a second steel reinforcement cage, and a butt joint outer ring arranged outside the first positioning ring and the second positioning ring, a first positioning ring is installed at the top of the first reinforcement cage, a second positioning ring is installed at the bottom of the second reinforcement cage, then butt joint of the reinforcement cages can be completed through clamping connection of the first positioning ring and the second positioning ring, then the butt joint outer ring is arranged outside the first positioning ring and the second positioning ring in a sleeving mode and fixed through bolts, and connection is further reinforced. The butt joint structure is simple in structure and convenient to install and butt joint, the construction efficiency and quality of a bridge pile foundation are improved, and meanwhile the problem that the position of the reinforcement cage deviates due to butt joint is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge structural components, and particularly relates to a steel reinforcement cage butt-joint structure for bridge construction. Background Technique

[0002] The highway industry has always been one of the basic construction industries in China. During the current construction of expressways, bridge construction has become the most important part of highway construction. As an important component of expressway bridges, the quality of pile foundations has an important impact on the safe use of expressways.

[0003] As an important part of bridge construction, the pile foundation project plays a crucial role in improving the quality and bearing capacity of bridges. During the pile foundation construction process, it is necessary to butt-joint the steel reinforcement cages of the pile foundations. The traditional method for butt-jointing steel reinforcement cages is to have one or more workers hold the steel reinforcement cages steady, and then one worker uses nuts and wrenches to thread-fix the vertical steel bars of the two steel reinforcement cages. This method is often very time-consuming and laborious, and has a certain degree of danger; moreover, during the actual construction process, it may cause a certain position deviation of the steel reinforcement cages of the bridge pile foundations, and the deviation of the positions of the steel reinforcement cages will have many adverse effects on the subsequent construction progress. Summary of the Invention

[0004] To solve the above problems, the utility model discloses a steel reinforcement cage butt-joint structure for bridge construction, which improves the construction efficiency and quality of bridge pile foundations while avoiding the problem of position deviation of the steel reinforcement cages caused by butt-jointing.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A steel reinforcement cage butt-joint structure for bridge construction includes a first positioning ring arranged at the top of the first steel reinforcement cage, a second positioning ring arranged at the bottom of the second steel reinforcement cage, and a butt-joint outer ring arranged outside the first positioning ring and the second positioning ring;

[0007] The first positioning ring is evenly provided with a plurality of first steel bar insertion holes in the circumferential direction. Above the inside of the first positioning ring, a plurality of vertical first engaging grooves are arranged. On the upper surface of the first positioning ring, a plurality of vertical first buckles are arranged. The first engaging grooves and the first buckles are arranged at intervals. On the outer surface of the first positioning ring, a plurality of vertical strip-shaped first limiting blocks and first threaded holes are arranged;

[0008] The second positioning ring is evenly provided with a plurality of second steel bar insertion holes in the circumferential direction. Above the inside of the second positioning ring, a plurality of vertical second engaging grooves are arranged. On the upper surface of the second positioning ring, a plurality of vertical second buckles are arranged. The second engaging grooves and the second buckles are arranged at intervals. On the outer surface of the second positioning ring, a plurality of vertical strip-shaped second limiting blocks and second threaded holes are arranged;

[0009] The inner surface of the docking outer ring is provided with a plurality of vertical limiting grooves, and the docking outer ring is provided with a plurality of third threaded holes;

[0010] The first positioning ring is engaged with the second positioning ring, and the docking outer ring is sleeved outside the first positioning ring and the second positioning ring.

[0011] Furthermore, the first buckle matches the second engaging groove, and the second buckle matches the first engaging groove. The subsequent steel reinforcement cages are docked through engagement, which is convenient to operate, has no technical requirements, and has good practicability.

[0012] Furthermore, the first steel bar insertion hole and the second steel bar insertion hole are correspondingly arranged, the first limiting block and the second limiting block are correspondingly arranged, and the first limiting block, the second limiting block match the limiting groove, which is convenient for the positioning and installation of the docking outer ring, and realizes the connection and reinforcement of the steel reinforcement cage.

[0013] As another implementation manner of the present utility model, the outer surface of the first positioning ring is provided with a plurality of vertical strip-shaped first limiting grooves, the outer surface of the second positioning ring is provided with a plurality of vertical strip-shaped second limiting grooves, the inner surface of the docking outer ring is provided with a plurality of vertical limiting blocks, the first limiting groove and the second limiting groove are correspondingly arranged, and the first limiting groove, the second limiting groove match the limiting block, which is convenient for the positioning and installation of the docking outer ring, and realizes the connection and reinforcement of the steel reinforcement cage.

[0014] Furthermore, the third threaded hole corresponds to the first threaded hole and the second threaded hole, and is fixedly connected by bolts to fix the first positioning ring, the second positioning ring and the docking outer ring, and the precise positioning is not offset.

[0015] Furthermore, a first limiting protrusion is arranged in the first engaging groove, the cross section of the first limiting protrusion is semicircular, a first guiding sliding surface is arranged at the top of the first buckle, a first limiting groove is arranged below the first guiding sliding surface, a second limiting protrusion is arranged in the second engaging groove, the cross section of the second limiting protrusion is semicircular, a second guiding sliding surface is arranged at the top of the second buckle, and a second limiting groove is arranged below the second guiding sliding surface; the semicircular cross section reduces the friction force, which is convenient for the engagement of the first engaging groove and the second buckle, and the second engaging groove and the first buckle.

[0016] Furthermore, the first limiting protrusion matches the second limiting groove, and the second limiting protrusion matches the first limiting groove, reducing the displacement after engagement.

[0017] The beneficial effects of the present utility model are:

[0018] A butt-joint structure for steel reinforcement cages used in bridge construction according to the present utility model. The first positioning ring and the second positioning ring have the same structure. The first positioning ring is installed at the top of the first steel reinforcement cage, and the second positioning ring is installed at the bottom of the second steel reinforcement cage. Then, the butt-joint of the steel reinforcement cages can be completed by the clamping connection of the first positioning ring and the second positioning ring. Then, the butt-joint outer ring is sleeved outside the first positioning ring and the second positioning ring and fixed by bolts to further strengthen the connection. The butt-joint structure of the present utility model is simple in structure, convenient to install and butt-joint. While improving the construction efficiency and quality of bridge pile foundations, it avoids the problem of position deviation of the steel reinforcement cage caused by butt-joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural view of the first positioning ring of the present utility model;

[0020] Figure 2 It is a schematic structural view of the second positioning ring of the present utility model;

[0021] Figure 3 It is a schematic structural view of the butt-joint outer ring of the present utility model;

[0022] Figure 4 It is a schematic structural view of the second engaging groove of the present utility model;

[0023] LIST OF DRAWING REFERENCES:

[0024] 1. First positioning ring; 101. First steel bar insertion hole; 102. First buckle; 103. First engaging groove; 104. First limiting block; 105. First threaded hole; 2. Second positioning ring; 201. Second steel bar insertion hole; 202. Second buckle; 203. Second engaging groove; 204. Second limiting block; 205. Second threaded hole; 206. Second limiting protrusion; 3. Butt-joint outer ring; 301. Limiting groove; 302. Third threaded hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be further illustrated below in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. Embodiment 1

[0026] As Figures 1 - 4 shown, a butt-joint structure for steel reinforcement cages used in bridge construction includes a first positioning ring 1 arranged at the top of the first steel reinforcement cage, a second positioning ring 2 arranged at the bottom of the second steel reinforcement cage, and a butt-joint outer ring 3 arranged outside the first positioning ring 1 and the second positioning ring 2;

[0027] The first positioning ring 1 is circumferentially and uniformly provided with a plurality of first steel bar insertion holes 101. Above the inside of the first positioning ring 1, a plurality of vertically arranged first engaging grooves 103 are provided. On the upper surface of the first positioning ring 1, a plurality of vertically arranged first buckles 102 are provided. The first engaging grooves 103 and the first buckles 102 are arranged at intervals. On the outer surface of the first positioning ring 1, a plurality of vertically arranged strip-shaped first limiting blocks 104 and first threaded holes 105 are provided.

[0028] The second positioning ring 2 is circumferentially and uniformly provided with a plurality of second steel bar insertion holes 201. Above the inside of the second positioning ring 2, a plurality of vertically arranged second engaging grooves 203 are provided. On the upper surface of the second positioning ring 2, a plurality of vertically arranged second buckles 202 are provided. The second engaging grooves 203 and the second buckles 202 are arranged at intervals. On the outer surface of the second positioning ring 2, a plurality of vertically arranged strip-shaped second limiting blocks 204 and second threaded holes 205 are provided.

[0029] On the inner surface of the docking outer ring 3, a plurality of vertically arranged limiting grooves 301 are provided. On the docking outer ring 3, a plurality of third threaded holes 302 are provided.

[0030] The first positioning ring 1 and the second positioning ring 2 are engaged, and the docking outer ring 3 is sleeved outside the first positioning ring 1 and the second positioning ring 2.

[0031] The first buckle 102 is matched with the second engaging groove 203, the second buckle 202 is matched with the first engaging groove 103, the first steel bar insertion hole 101 and the second steel bar insertion hole 201 are correspondingly arranged, the first limiting block 104 and the second limiting block 204 are correspondingly arranged, and the first limiting block 104, the second limiting block 204 and the limiting groove 301 are matched; the third threaded hole 302 corresponds to the first threaded hole 105 and the second threaded hole 205 and is connected by bolts.

[0032] The first engaging groove 103 is provided with a first limiting protrusion. The cross-section of the first limiting protrusion is a semicircle. The top of the first buckle 102 is provided with a first guiding and sliding inclined surface. Below the first guiding and sliding inclined surface, a first limiting groove is provided. The second engaging groove 203 is provided with a second limiting protrusion 206. The cross-section of the second limiting protrusion 206 is a semicircle. The top of the second buckle 202 is provided with a second guiding and sliding inclined surface. Below the second guiding and sliding inclined surface, a second limiting groove is provided. The first limiting protrusion is matched with the second limiting groove, and the second limiting protrusion 206 is matched with the first limiting groove;

[0033] As another implementation manner of the present utility model, the outer surface of the first positioning ring 1 is provided with a plurality of vertically arranged strip-shaped first limiting grooves, the outer surface of the second positioning ring 2 is provided with a plurality of vertically arranged strip-shaped second limiting grooves, the inner surface of the docking outer ring 3 is provided with a plurality of vertically arranged limiting blocks, the first limiting grooves and the second limiting grooves are correspondingly arranged, and the first limiting grooves, the second limiting grooves and the limiting blocks are matched.

[0034] Working principle: The vertical steel bars at the top of the first tied steel cage are inserted into the first steel bar insertion holes 101 of the first positioning ring 1 from the lower end face of the first positioning ring 1 and are flush with the upper end face of the first positioning ring 1. The vertical steel bars at the bottom of the second tied steel cage are first sleeved with a docking outer ring 3, and then the vertical steel bars are inserted into the second steel bar insertion holes 201 of the second positioning ring 2 from the lower end face of the second positioning ring 2 and are flush with the upper end face of the second positioning ring 2. The installation of the first positioning ring 1 and the second positioning ring 2 can be completed before construction. During construction, after lifting the second steel cage, align the second buckle 202 of the second positioning ring 2 with the first engaging groove 103 on the first positioning ring 1 (or align the second engaging groove 203 of the second positioning ring 2 with the first buckle 102 on the positioning ring). The second steel cage moves downward, and its own inertia and weight are sufficient to engage the first positioning ring 1 with the second positioning ring 2. After engagement, align the limiting groove 301 of the docking outer ring 3 with the second limiting block 204 and slide downward. After both ends are flush, fix and connect the docking outer ring 3, the first positioning ring 1, and the second positioning ring 2 with bolts, and the docking of the steel cages is completed.

[0035] It should be noted that the above content only illustrates the technical idea of the present utility model and cannot be used to limit the protection scope of the present utility model. For those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and retouches can be made, and these improvements and retouches all fall within the protection scope of the claims of the present utility model.

Claims

1. A steel cage docking structure for bridge construction, characterized in that: It includes a first positioning ring arranged at the top of the first steel cage, a second positioning ring arranged at the bottom of the second steel cage, and a butt-jointed outer ring arranged outside the first positioning ring and the second positioning ring; The first positioning ring is evenly provided with a plurality of first steel bar insertion holes in an annular direction, a plurality of vertical first clamping grooves are provided on the upper part of the first positioning ring, a plurality of vertical first clamping buckles are provided on the upper surface of the first positioning ring, the first clamping grooves and the first clamping buckles are arranged at intervals, and a plurality of vertical strip-shaped first limiting blocks and first threaded holes are provided on the outer surface of the first positioning ring; The second positioning ring is evenly provided with a plurality of second steel bar insertion holes in the annular direction, a plurality of vertical second clamping grooves are provided on the upper part of the second positioning ring, a plurality of vertical second buckles are provided on the upper surface of the second positioning ring, the second clamping grooves and the second buckles are arranged at intervals, and a plurality of vertical strip-shaped second limit blocks and second threaded holes are provided on the outer surface of the second positioning ring; A plurality of vertical limit grooves are arranged on the inner surface of the docking outer ring, and a plurality of third threaded holes are arranged on the docking outer ring; The first positioning ring is engaged with the second positioning ring, and the butt-jointed outer ring is sleeved outside the first positioning ring and the second positioning ring.

2. A steel cage docking structure for bridge construction according to claim 1, characterized in that: The first buckle matches with the second buckle slot, and the second buckle matches with the first buckle slot.

3. A steel cage docking structure for bridge construction according to claim 1, characterized in that: The first steel bar insertion hole is arranged correspondingly to the second steel bar insertion hole, the first limiting block is arranged correspondingly to the second limiting block, and the first limiting block and the second limiting block are matched with the limiting groove.

4. A steel cage butt joint structure for bridge construction according to claim 1, characterized in that: The third threaded hole corresponds to the first threaded hole and the second threaded hole and is connected by bolts.

5. The steel cage butt joint structure for bridge construction according to claim 1, characterized in that: A first limiting protrusion is provided in the first engaging groove, and the cross-section of the first limiting protrusion is semicircular. A first guiding inclined surface is provided on the top of the first buckle, and a first limiting groove is provided below the first guiding inclined surface. A second limiting protrusion is provided in the second engaging groove, and the cross-section of the second limiting protrusion is semicircular. A second guiding inclined surface is provided on the top of the second buckle, and a second limiting groove is provided below the second guiding inclined surface.

6. A steel cage butt joint structure for bridge construction according to claim 5, characterized in that: The first limiting protrusion matches with the second limiting groove, and the second limiting protrusion matches with the first limiting groove.

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