CN207727555U - I-shaped prestressed concrete slabs staking pilework - Google Patents

Abstract

The utility model discloses a kind of I-shaped prestressed concrete slabs staking pileworks, including first segment stake and the second section stake, the tail portion of the first segment stake is equipped with the first pre-embedded steel slab, the front end of the second section stake is equipped with the second pre-embedded steel slab, first pre-embedded steel slab is equipped with multiple nuts, the nut upper and lower ends are threaded with the first reinforcing bar and the second reinforcing bar respectively, second embedded board is equipped with bellows corresponding with the nut of the first embedded board, the lower end of second reinforcing bar corresponds to the front end be inserted into bellows and the tail portion of first segment stake is made to save stake with second and docks, and both the first pre-embedded steel slab and the second pre-embedded steel slab are fixedly connected.By the above-mentioned means, the I-shaped prestressed concrete slabs staking pilework of the utility model, can ensure that pile pile docking structure is stablized, at low cost, construction is convenient.

Description

I-shape Prestressed Reinforced Concrete Sheet Pile Connection Structure

technical field

The utility model relates to the field, in particular to an I-shaped prestressed reinforced concrete sheet pile connection structure.

Background technique

Prefabricated pipe piles are one of the pile foundation products widely used in my country's construction projects, but there are common problems in the on-site splicing of pipe piles. The conventional splicing methods such as welding, the welded joints are greatly affected by the weather and the quality of the operators, and the quality is usually not easy to guarantee. In order to speed up the construction period, the cooling time of the weld is usually not enough, the pile is pressed into the soil, the weld is cooled rapidly when it meets groundwater, the weld cracks, and the quality of the pile connection is poor. However, if the cooling time of the weld is guaranteed, the construction efficiency will be affected. If the welding time is too long, the thixotropy of the soil will increase the difficulty of sinking the pipe piles, often resulting in failure to reach the design elevation, which will bring hidden dangers to the safety of the superstructure. Although traditional mechanical connections such as buckle joints reduce the welding workload, the fasteners may fall off during the pile sinking process, making it difficult to guarantee the quality and high cost.

Contents of the invention

The technical problem mainly solved by the utility model is to provide an I-shaped prestressed reinforced concrete sheet pile connection structure, which can ensure the stability of the pipe pile connection structure, low cost and convenient construction.

In order to solve the above technical problems, a technical solution adopted by the utility model is to provide an I-shaped prestressed reinforced concrete sheet pile connection structure, including a first section pile and a second section pile, and the first section pile The tail is provided with a first pre-embedded steel plate, the front end of the second section pile is provided with a second pre-embedded steel plate, the first pre-embedded steel plate is provided with a plurality of nuts, and the upper and lower ends of the nuts are respectively threaded. The first steel bar and the second steel bar are connected, and the bellows corresponding to the nuts of the first embedded plate are provided on the second embedded plate, and the lower end of the second steel bar is correspondingly inserted into the bellows so that the first section The tail of the pile is docked with the front end of the second section pile, and the first pre-embedded steel plate and the second pre-embedded steel plate are fixedly connected.

In a preferred embodiment of the present invention, a part of the nut is screwed to the first steel bar, and the rest is screwed to the second steel bar.

In a preferred embodiment of the present invention, the depth of the first steel bar entering the nut is half the length of the nut, and the depth of the second steel bar entering the nut is half the length of the nut .

In a preferred embodiment of the present invention, the first pre-embedded steel plate and the second pre-embedded steel plate are fixed by welding, and the lower end of the nut is welded to the opening edge of the first pre-embedded steel plate.

In a preferred embodiment of the present invention, the bellows is hollow and filled with high-strength structural glue.

In a preferred embodiment of the present invention, the first embedded steel plate and the second embedded steel plate are steel plates with an I-shaped structure, and the number of the nuts and bellows is 2 or more.

In a preferred embodiment of the present invention, the number of said nuts and bellows is five.

The beneficial effects of the utility model are: the I-shaped prestressed reinforced concrete sheet pile connection structure of the utility model can ensure the stability of the butt joint structure of pipe piles, low cost and convenient construction.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, wherein:

Fig. 1 is the structural representation of a preferred embodiment of the I-shaped prestressed reinforced concrete sheet pile connection pile structure of the present invention;

Fig. 2 is the enlarged schematic view of the partial structure of the I-shaped prestressed reinforced concrete sheet pile connection structure shown in Fig. 1;

Fig. 3 is the local structure schematic diagram of the I-shaped prestressed reinforced concrete sheet pile connection structure shown in Fig. 1;

Fig. 4 is the local structure schematic diagram of the I-shaped prestressed reinforced concrete sheet pile connection structure shown in Fig. 1;

The marks of each part in the accompanying drawings are as follows: 1. The first section pile, 2. The second section pile, 3. The first pre-embedded steel plate, 4. The second pre-embedded steel plate, 5. Nut, 6. The first steel bar, 7. The second steel bar, 8. Bellows, 9. High-strength structural adhesive.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, an I-shaped prestressed reinforced concrete sheet pile connection structure, including the first section pile 1 and the second section pile 2, the tail of the first section pile 1 is provided with the first pre-embedded steel plate 3, the second section pile The front end of the two-section pile 2 is provided with a second pre-embedded steel plate 4, and the first pre-embedded steel plate 3 is provided with a plurality of nuts 5, and the upper and lower ends of the nut 5 are respectively threaded with a first steel bar 6 and a second steel bar 7 The second pre-embedded plate 4 is provided with a corrugated tube 8 corresponding to the nut 5 of the first pre-embedded plate 3, and the lower end of the second steel bar 7 is correspondingly inserted into the corrugated tube 8 so that the afterbody of the first section pile 1 is aligned with the second The front end of the two-section pile 2 is docked, and the first embedded steel plate 3 and the second embedded steel plate 4 are fixedly connected. The nut 5 is a special super-long high-strength nut. The first steel bar 6 and the second steel bar 7 For high-strength steel.

In addition, a part of the nut 5 is screwed to the first steel bar 6 , and the rest is screwed to the second steel bar 7 .

In addition, the depth of the first steel bar 6 entering the nut 5 is half the length of the nut 5 , and the depth of the second steel bar 7 entering the nut 5 is half the length of the nut 5 .

In addition, the first embedded steel plate 3 and the second embedded steel plate 4 are fixed by welding, and the nut 5 is connected to the first embedded steel plate 3 by welding.

In addition, the bellows 8 is hollow and filled with high-strength structural glue 9 .

In addition, the first embedded steel plate 3 and the second embedded steel plate 4 are steel plates with an I-shaped structure, and the number of nuts 5 and bellows 8 is 2 or more.

In addition, the number of nuts 5 and bellows 8 is five.

The specific principle of the I-shaped prestressed reinforced concrete sheet pile connection structure of the utility model is as follows: the first pre-embedded steel plate 3, a plurality of special super-long high-strength nuts 5, the first Reinforcing bar 6, the first pre-embedded steel plate 4 is provided with an opening corresponding to the nut, one end of the nut 5 is welded to the edge of the opening of the first pre-embedded steel plate 4, and the other end is threadedly connected to the first steel bar 6. The depth is half of the nut 5; the length of the first steel bar 6 at least meets the anchorage length required by its specification. Before the second section pile 2 is formed, a second pre-embedded steel plate 4 and a high-strength corrugated pipe 8 are arranged on its head; the bellows 8 is hollow, which is convenient for later filling of high-strength slurry; In the soil body, the part of the second section pile 2 exposed to the ground is not less than 1m, and it is fixed with a fixing device; before the first section pile and the second section pile 2 are docked, the bellows at the end of the second section pile 2 8 is filled with high-strength structural glue 9; before lifting the first section pile 1, the second steel bar 7 is screwed into the special super-long high-strength nut 6 in the first section pile 1, and the screwing depth is 6 half of the length; after the first section pile 1 is hoisted, it is centered with the end of the second section pile 2, and the second steel bar 7 at the end of the first section pile 1 is inserted into the bellows 8, and the first section pile 1 and the second section After the docking of the piles 2 is completed, the first section pile 1 and the second section pile 2 are connected as one by welding the first pre-embedded steel bar 3 and the second pre-embedded steel bar 4 .

Different from the prior art, the utility model has an I-shaped prestressed reinforced concrete sheet pile connection structure, which can ensure the stability of the pipe pile connection structure, low cost and convenient construction.

The above descriptions are only examples of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the utility model description, or directly or indirectly used in other related technologies Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (7)

1. a kind of I-shaped prestressed reinforced concrete sheet pile connection pile structure, it is characterized in that, comprise the first section pile and the second section pile, the afterbody of described first section pile is provided with the first pre-embedded steel plate, described The front end of the second section pile is provided with a second pre-embedded steel plate, the first pre-embedded steel plate is provided with a plurality of nuts, and the upper and lower ends of the nuts are respectively threaded with a first steel bar and a second steel bar, so The second pre-embedded plate is provided with a corrugated tube corresponding to the nut of the first pre-embedded plate, and the lower end of the second steel bar is correspondingly inserted into the corrugated tube so that the tail of the first section pile is aligned with the front end of the second section pile. butt joint, and fixedly connect the first embedded steel plate and the second embedded steel plate. 2. The H-shaped prestressed reinforced concrete sheet pile connection structure according to claim 1, characterized in that, a part of the nut is threaded with the first steel bar, and the rest is threaded with the second steel bar. 3. The H-shaped prestressed reinforced concrete sheet pile connection structure according to claim 2, characterized in that, the depth of the first reinforcement entering the nut is half the length of the nut, and the second reinforcement enters the nut The depth is half the length of the nut . 4. The I-shaped prestressed reinforced concrete sheet pile connection structure according to any one of claims 1-3, characterized in that, the first pre-embedded steel plate and the second pre-embedded steel plate are fixed by welding, and the The lower end of the nut is welded to the opening edge of the first embedded steel plate. 5. The I-shaped prestressed reinforced concrete sheet pile connection structure according to claim 4, characterized in that, the bellows is a hollow structure filled with high-strength structural glue. 6. The I-shaped prestressed reinforced concrete sheet pile connection structure according to claim 5, wherein the first embedded steel plate and the second embedded steel plate are steel plates of an I-shaped structure, and the screw The number of caps and bellows is 2 or more. 7. The I-shaped prestressed reinforced concrete sheet pile connection structure according to claim 6, wherein the number of said nuts and bellows is five.