CN217870441U

CN217870441U - Combined connection structure of precast pile

Info

Publication number: CN217870441U
Application number: CN202222366120.6U
Authority: CN
Inventors: 马学军; 傅连军; 王雅
Original assignee: Hangzhou Lianli Ground Air Construction Technology Co ltd
Current assignee: Hangzhou Lianli Ground Air Construction Technology Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2022-11-22
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses a built-up connection structure of precast pile, including first pile body and second pile body, first pile body sets up the top at the second pile body a side end of first pile body corresponds and forms first flange body a side end of second pile body corresponds and forms the second flange body, evenly is provided with a plurality of first screw holes on first flange body and second flange body, after first flange body and the joint of second flange body, all be provided with a plurality of connecting blocks in the junction periphery etc. correspond on every connecting block and be provided with the second screw hole, second screw hole and the centering of first screw hole one by one set up, and every connecting block all through the screw respectively with first pile body and second pile body coupling. The technical effect is that the flange body is arranged at the end part of the matching surface of the precast pile, the connecting block is arranged at the outer edge of the flange body and is in screw connection with the flange body of the precast pile, and the connecting strength and the shearing strength of the multi-section precast pile are effectively improved.

Description

Combined connection structure of precast pile

Technical Field

The utility model belongs to civil engineering field, concretely relates to built-up connection structure of precast pile.

Background

The pile foundation for building construction currently mainly includes two types, cast-in-place pile and precast pile. The cast-in-place pile is a pile foundation formed by firstly drilling a hole and then pouring pile concrete on an engineering site, and the cast-in-place pile has the major defects that the hole is drilled and soil is taken out, and drilled muck needs to be transported to a special waste soil piling site for treatment. With the continuous expansion of urban construction and the continuous improvement of environmental protection requirements, the muck treatment method for the outward transportation of the muck is difficult to implement. The precast pile is a pile foundation process which is most important for current engineering construction because the precast pile is used as an efficient and environment-friendly construction process because the pile body is manufactured in a factory and the pile body quality is stable because the pile body does not produce muck in the construction process.

Because prefabrication and transportation are required in advance, the length of a single-section pile of the prefabricated pile is limited, the maximum length is 16m generally, and if the designed length of a pile foundation is long, a plurality of sections of piles need to be spliced in the construction process to meet the requirement of the pile length. The pile extension mode that at present most adopts is the welding pile extension, is about the continuous welding of end plate after the end plate that is about two sections stake tip bumps mutually, because the welding pile extension needs the manual work to go on, welding quality receives factors such as manual work level, cooling time to influence great, especially, this is not conform to the good characteristics of the steady quality nature of precast pile itself. Therefore, a mechanical connection method with relatively high stability becomes a mainstream research direction of precast pile extension.

Therefore, the utility model discloses.

Disclosure of Invention

An object of the utility model is to provide a joint connection structure of precast pile that joint strength is better, and shear strength is better

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a built-up connection structure of precast pile, includes first pile body and second pile body, first pile body sets up the top at the second pile body one side tip of first pile body corresponds and forms first flange body one side tip of second pile body corresponds and forms the second flange body, evenly is provided with a plurality of first screw holes on first flange body and second flange body, after first flange body and the joint of second flange body, all be provided with a plurality of connecting blocks in the junction periphery etc. correspond on every connecting block and be provided with the second screw hole, second screw hole and the centering of first screw hole one by one set up, and every connecting block all is connected with first pile body and second pile body respectively through the screw.

Further, the corresponding first annular that is provided with of the outer fringe face department of first pile body, first annular is located the top setting of first flange body the corresponding second annular that is provided with of outer fringe face department of second pile body, the second annular is located the below setting of second flange body.

Furthermore, the cross section of connecting block is "Contraband" form, the connecting block comprises upper edge portion, joint groove and lower edge portion, the upper edge portion corresponds the first annular groove department of pegging graft to first flange body, first flange body and the cooperation of second flange body are installed in the joint groove of connecting block, the corresponding grafting of lower edge portion is to the second annular groove department of second flange body.

Preferably, the number of the connecting blocks is three, and the included angle of the connecting lines at the two ends of the plane of the connecting block is 120 degrees.

Preferably, the screw is a headless screw, and after the headless screw is matched and locked, the end face of one side of the screw is flush with the outer edge face of the connecting block.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up the flange body at precast pile fitting surface tip, flange body edge department sets up the connecting block, and connecting block and precast pile flange body screwed connection have effectively improved the joint strength and the shear strength of multistage body precast pile.

Drawings

Fig. 1 is an exploded view of the precast pile structure of the present invention;

fig. 2 is a half sectional view of the precast pile structure of the present invention;

fig. 3 is a schematic structural view of the precast pile connecting block of the present invention;

fig. 4 is a half sectional view of the structure of the precast pile body of the present invention;

fig. 5 is a diagram illustrating the position distribution of the connecting block according to the present invention.

In the figure: the pile structure comprises a first pile body 1, a second pile body 2, a first flange body 3, a second flange body 4, a first threaded hole 5, a connecting block 6, a second threaded hole 7, a first annular groove 8, a second annular groove 9, an upper edge portion 10, a clamping groove 11 and a lower edge portion 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.

Example 1:

please refer to fig. 1-4, the utility model relates to a composite connection structure of precast pile, including first pile body 1 and second pile body 2, first pile body 1 sets up in the top of second pile body 2 a side end correspondence of first pile body 1 forms first flange body 3 a side end correspondence of second pile body 2 forms second flange body 4, evenly is provided with a plurality of first screw holes 5 on first flange body 3 and second flange body 4, after first flange body 3 and the joint of second flange body 4 all be provided with a plurality of connecting blocks 6 in the junction periphery etc. the correspondence is provided with second screw hole 7 on every connecting block 6, second screw hole 7 sets up with first screw hole 5 one-to-one, and every connecting block 6 all is connected with first pile body 1 and second pile body 2 respectively through the screw.

In this embodiment, the outer edge surface of the first pile body 1 is correspondingly provided with a first annular groove 8, the first annular groove 8 is located above the first flange body 3, the outer edge surface of the second pile body 2 is correspondingly provided with a second annular groove 9, and the second annular groove 9 is located below the second flange body 4.

In this embodiment, the section of the connecting block 6 is in the form of "Contraband", the connecting block 6 is composed of an upper edge portion 10, a fastening groove 11 and a lower edge portion 12, the upper edge portion 10 is correspondingly inserted into the first annular groove 8 of the first flange body, the first flange body 3 and the second flange body 4 are installed in the fastening groove 11 of the connecting block in a matching manner, and the lower edge portion 12 is correspondingly inserted into the second annular groove 9 of the second flange body.

In this embodiment, the number of the connecting blocks is three, and an included angle between connecting lines at two ends of a plane of the connecting block is 120 °.

In this embodiment, the screw is headless screw, and after the cooperation was locked, a side end face of screw and connecting block outer fringe face parallel and level.

The precast pile combined connecting structure comprises the following actual installation methods:

the first pile body 1 and the second pile body 2 are installed in a matched mode, so that the first flange body 3 at the first pile body is connected with the second flange body 4 at the second pile body 2, then the connecting blocks 6 are installed on the outer edge of the flange body between the first pile body 1 and the second pile body 2 in a matched mode in sequence, hole positions need to be centered one by one during installation, and then headless screws are screwed into the corresponding hole positions to achieve connection of the first pile body 1 and the second pile body 2.

When the connecting block 6 is installed, the upper edge portion 10 of the connecting block is correspondingly inserted into the first annular groove 8 of the first flange body 3, after the first pile body 1 and the second pile body 2 are jointed, the first flange body 3 and the second flange body 4 are installed in the clamping groove 11 of the connecting block in a matching mode, and the lower edge portion 12 of the connecting block 6 is correspondingly inserted into the second annular groove 9 of the second flange body 4.

The flange body and the connecting block are matched, the longitudinal connection strength of the multi-section precast pile is greatly improved, the connecting block is connected with the flange of the precast pile body through screws, the shearing strength of the precast pile body is improved, the precast pile body is connected more stably, and the bearing capacity of the pile body is stronger.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a composite connection structure of precast pile, includes first pile body and second pile body, first pile body sets up the top at the second pile body, its characterized in that: the utility model discloses a pile structure, including first pile body, second pile body, first flange body, a plurality of connecting blocks, second threaded holes, first flange body and second flange body, the first flange body of a side tip correspondence formation of first pile body one side tip correspondence formation second flange body evenly is provided with a plurality of first screw holes on first flange body and second flange body, after first flange body and second flange body joint, all be provided with a plurality of connecting blocks in junction periphery etc. correspond and be provided with the second screw hole on every connecting block, the second screw hole sets up with first screw hole one-to-one centering, and every connecting block all through the screw respectively with first pile body and second pile body coupling.

2. A composite connecting structure of a precast pile according to claim 1, wherein: the corresponding first annular that is provided with of outer fringe face department of first pile body, first annular is located the top setting of first flange body the corresponding second annular that is provided with of outer fringe face department of second pile body, the below setting that the second annular is located the second flange body.

3. A composite connecting structure of a precast pile according to claim 1 or 2, wherein: the cross-section of connecting block is "Contraband" form, the connecting block comprises upper edge portion, joint groove and lower edge portion, the corresponding plug-in connection of upper edge portion is to the first annular department of first flange body, the cooperation of first flange body and second flange body is installed in the joint inslot of connecting block, the corresponding plug-in connection of lower edge portion is to the second annular department of second flange body.

4. A combined connecting structure of precast piles according to claim 1 or 2, characterized in that the number of the connecting blocks is three, and the included angle of the connecting lines at the two ends of the plane of the connecting blocks is 120 degrees.

5. The composite connection structure of the precast pile according to claim 1, wherein the screw is a headless screw, and after the screw is locked in a matching manner, one side end face of the screw is flush with the outer edge face of the connection block.