CN219568936U

CN219568936U - Prefabricated ground beam of sound barrier of highway subgrade section

Info

Publication number: CN219568936U
Application number: CN202223460497.4U
Authority: CN
Inventors: 刘峰; 何晓萍; 晁成冉
Original assignee: Jiangsu Xingou Intelligent Manufacturing Technology Co ltd
Current assignee: Jiangsu Xingou Intelligent Manufacturing Technology Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-08-22
Anticipated expiration: 2032-12-23

Abstract

The utility model relates to a prefabricated ground beam of a sound barrier of a highway subgrade section, which comprises a ground beam main body, wherein the bottom of one side of the ground beam main body is provided with a bottom connecting table, and the bottom connecting table is provided with a first screw rod; a top side connecting table is arranged at the top of the other side of the ground beam main body, a cast-in-situ groove is formed in the top of the top side connecting table, a screw reserved hole is vertically formed in the cast-in-situ groove, and the position of the screw reserved hole is matched with the installation position of the first screw; after the adjacent two ground beam main bodies are installed in a superposition mode, the extending end of the first screw rod is located in the screw rod reserved hole and is fixed in the cast-in-situ groove through nuts. The novel sound barrier prefabricated ground beam can be completely prefabricated in a factory, on-site sections are connected by adopting screws, grouting in a grouting hole is completed, the construction period is short, and the damage degree to the existing roadbed is small.

Description

Prefabricated ground beam of sound barrier of highway subgrade section

Technical Field

The utility model relates to the technical field of highway construction, in particular to a light industrial highway subgrade section sound barrier prefabricated ground beam.

Background

The sound barrier design of the highway forms a standardized design system in the aspects of acoustic design, structural safety design, material and combined durable design, safety landscape design, maintenance and the like of the sound barrier under the premise of fully considering the characteristics of the highway. The steel upright post plugboard type sound barrier is the most common sound barrier structural form in China, the upper structure of the type sound barrier generally adopts H-shaped steel as a supporting upright post, the lower structure adopts a shallow pile and connecting beam foundation, and the sound barrier screen body is directly inserted into the H-shaped steel upright post, so that the sound barrier has the characteristics of simple structure, convenience in installation and the like.

The sound barrier of the type is constructed by excavating a roadbed slope for foundation construction after roadbed protection engineering is finished, the slope and protection of the slope are seriously damaged due to a large amount of excavated slopes, and the sound barrier ground beam needs to be cast in situ, so that pavement pollution phenomenon easily occurs in the construction process, and the design of a novel reasonable foundation type structure is important for high-quality engineering construction, so that the requirements of safety and economy are met, the construction period is shortened, the construction is convenient, and the like.

Disclosure of Invention

The utility model aims to provide a sound barrier prefabricated ground beam for a highway subgrade section, which solves the problems encountered in the background technology.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the sound barrier prefabricated ground beam comprises a ground beam main body, wherein a bottom connecting table is arranged at the bottom of one side of the ground beam main body, and a first screw is arranged on the bottom connecting table; a top side connecting table is arranged at the top of the other side of the ground beam main body, a cast-in-situ groove is formed in the top of the top side connecting table, a screw reserved hole is vertically formed in the cast-in-situ groove, and the position of the screw reserved hole is matched with the installation position of the first screw; after the adjacent two ground beam main bodies are overlapped and installed:

the extending end of the first screw is positioned in the screw preformed hole and is fixed in the cast-in-situ groove through a nut;

or, a second screw is arranged in the screw preformed hole, the bottom of the second screw is fixedly connected with the first screw through a threaded sleeve, and the top of the second screw is fixed in the cast-in-situ groove through a nut.

Further, as a preferable scheme, the nut fixes the second screw rod in the cast-in-situ groove through a nut gasket, and the diameter of the screw rod reserved hole is larger than that of the second screw rod so as to be convenient for pouring concrete slurry.

Still further, as a preferable scheme, the first screw and the screw preformed holes are provided with at least two, and the cast-in-situ groove is of a strip structure.

In the scheme, the ground beam main body, the bottom connecting table and the top side connecting table are of an integrated structure.

Further, as a preferable scheme, the top of the bottom connecting table is arranged obliquely upwards, and the bottom of the top side connecting table is arranged obliquely downwards.

In the scheme, one side is equipped with the side brace table in the middle of the top of girder body, is equipped with H shaped steel stand in the middle of the top of girder body and the side brace table, has seted up steel-pipe pile preformed hole in the middle of the bottom of girder body and under the side brace table.

Further, as a preferable scheme, pouring holes are vertically formed in the top and side support tables of the ground beam main body, and the pouring holes are communicated with the reserved holes of the steel pipe piles.

Compared with the prior art, the utility model has the beneficial effects that: the novel sound barrier prefabricated ground beam can be completely prefabricated in a factory, on-site sections are connected by adopting screws, grouting in a grouting hole is completed, the construction period is short, and the damage degree to the existing roadbed is small. The screw rod is adopted for connection, the connection mode is simple, the construction is convenient, the integrity is good, and the site dust pollution can be effectively reduced. The utility model can realize the functions of low labor intensity and high construction precision, has simple working procedures, convenient disassembly and assembly, safety and reliability, can adapt to different working conditions and meets the requirement of prefabrication of the sound barrier of the highway subgrade section.

Drawings

The disclosure of the present utility model is described with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the whole structure of another view of the present utility model;

FIG. 3 is a schematic view of the connection structure of two adjacent ground beam bodies;

FIG. 4 is a schematic view of the internal structure of FIG. 3

FIG. 5 is a schematic view of the structure of the junction between two adjacent girder bodies;

fig. 6 is an enlarged view of the portion a in fig. 5.

Reference numerals in the drawings: 1-a ground beam main body; 11-steel pipe pile preformed holes; 2-a bottom connection stage; 21-a first screw; 22-a threaded sleeve; 3-topside connection stations; 31-a cast-in-situ trough; 32-screw preformed holes; 33-a second screw; 34-nut washers; 35-a nut; 4-side support; 41-H-shaped steel upright posts; 42-pouring holes.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the present utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures to which the utility model pertains.

According to the technical scheme of the utility model, a person skilled in the art can propose various alternative structural modes and implementation modes without changing the true spirit of the utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.

The technical scheme of the utility model is further described in detail below with reference to the accompanying drawings and examples.

Embodiment 1, as shown in fig. 1 and fig. 2, a sound barrier prefabricated ground beam for highway subgrade section comprises a ground beam main body 1, compared with the prior art, the ground beam main body 1 is prefabricated in a factory by adopting common concrete, is directly installed on site, has short construction period and simple site operation flow.

The bottom of one side of the ground beam main body 1 is provided with a bottom connecting table 2, and a first screw 21 is buried in advance on the bottom connecting table 2. The top of the other side of the ground beam main body 1 is provided with a top side connecting table 3, the top of the top side connecting table 3 is provided with a cast-in-situ groove 31, a screw reserved hole 32 is vertically formed in the cast-in-situ groove 31, and the position of the screw reserved hole 32 is matched with the installation position of the first screw 21.

As a preferable scheme, the first screw 21 and the screw preformed holes 32 are at least two, so that the connection stability of two adjacent ground beam main bodies 1 is improved after implementation, and the cast-in-situ groove 31 is of a strip structure, so that two or three screw preformed holes 32 are conveniently arranged, concrete can be conveniently poured, and the internal screws are tightly fixed.

In the prefabricated component manufacturing process, the first screw rod 21 is required to be pre-buried in the component main body and then fixed with the screw rod preformed hole 32, and the connection structure design is characterized in that the ground beam main body 1 is integrally pre-buried underground, the screw rod or the fixed screw rod is mainly inserted right above the ground beam in operation, the side excavation of the foundation is reduced in ground operation, gaps are reserved between the inner diameter of the screw rod preformed hole 32 and the outer diameter of the first screw rod 21, and between the bottom connecting table 2 and the top connecting table 3, so that the precision fault tolerance is high, and the construction is convenient.

As a preferable scheme, the ground beam main body 1, the bottom connecting table 2 and the top side connecting table 3 are of an integrated structure, and are integrally prefabricated, stable and firm, and convenient to install and transport.

As a preferred solution, the top of the bottom connecting table 2 is arranged obliquely upward, and the bottom of the top connecting table 3 is arranged obliquely downward. After the sound barrier of the highway subgrade section is prefabricated, during construction, the ground beam main bodies 1 can be sequentially installed, and are generally directly stacked and installed from right to left in sequence. The top of the bottom connecting table 2 is inclined upwards, and the bottom of the top connecting table 3 is inclined downwards, so that the bottom connecting table can be installed in a manner of being inserted from the bottom, and the construction operation can be performed.

Referring to fig. 3 to 6, after two adjacent girder bodies 1 are stacked and installed, the protruding end of the first screw 21 is located in the screw reserved hole 32 and is fixed in the cast-in-place slot 31 by the nut 35, so that the two adjacent girder bodies 1 are locked together. In addition, concrete is poured into the cast-in-place groove 31 for reinforcement, so that the connection of two adjacent ground beam bodies 1 is very convenient.

In embodiment 2, please continue to refer to fig. 3 to 6, a sound barrier prefabricated ground beam for a highway subgrade section is different from embodiment 1 in that the fixed structural members are different when two adjacent ground beam bodies 1 are installed in a superposed manner.

A second screw rod 33 is arranged in the screw rod preformed hole 32, the bottom of the second screw rod 33 is fixedly connected with the first screw rod 21 through a threaded sleeve 22, and the top of the second screw rod 33 is fixed in the cast-in-situ groove 31 through a nut 35. During installation, the threaded sleeve 22 is firstly installed on the first screw rod 21 to be screwed to a half position, then the second screw rod 33 is installed and screwed with the other half of the threaded sleeve 22 to be fixed, and finally the threaded sleeve is fixed in the cast-in-situ groove 31 through the nut 35.

The diameter of the screw preformed hole 32 is larger than that of the second screw 33, and when the method is implemented, the diameter of the screw preformed hole 32 is phi 35mm, the diameter of the second screw 33 is phi 25mm, a gap is reserved between the second screw 33 and the screw preformed hole 32, and the gap can effectively adjust a slight offset angle existing during connection of the land beam main body 1, can effectively adapt to a curve highway subgrade section or a moderate curve highway subgrade section, and enables the land beam to be more effectively attached to a highway route.

As a preferable scheme, the nut 35 fixes the second screw 33 in the cast-in-situ groove 31 through the nut gasket 34, and the nut gasket 34 is added to enable the connection between the nut 35 and the first screw 21 or the second screw 33 to be tighter and not easy to loosen, so that the construction stability of the highway ground beam is facilitated. The arrangement of the nut gasket 34 also increases the locking and attaching area of the nut 35 to the screw rod, so that the nut 35 is tightly fixed on the outer side of the screw rod preformed hole 32 and is abutted against the cast-in-situ groove 31.

The two ground beam main bodies 1 are vertically overlapped, then a second screw 33 is inserted and screwed into the threaded sleeve 22, slurry is poured downwards from the screw reserved hole 32 until the slurry fills the gap between the components, a nut gasket 34 and a nut 35 are installed, and the slurry is poured into the cast-in-situ groove 31 after the installation. The grouting body can effectively protect the connecting components and avoid corrosion caused by groundwater or air humidity.

In the process of manufacturing the prefabricated component, the first screw rod 21 needs to be pre-buried in the component main body, the threaded sleeve 22 is firstly installed and screwed to a half position during installation, and the second screw rod 33 is installed in the screw rod reserved hole 32 and is fixed with the other half of the threaded sleeve 22. And pouring the slurry downwards from the screw preformed hole 32 until the slurry fills the gaps among the components, installing the nut gaskets 34 and the nuts 35, and pouring the slurry in the cast-in-situ trough 31 after the installation. The connection structure design is characterized in that the whole ground beam main body is embedded in the bottom, the screw is mainly inserted right above the ground beam for operation, the side excavation of the foundation is reduced, the reserved gap in the connecting piece is reserved, the precision fault tolerance is high, and the construction is convenient.

Embodiment 3, on the basis of embodiment 1 or embodiment 2, is a sound barrier prefabricated ground beam for a highway subgrade section, in addition, a side support table 4 is provided on one side in the middle of the top of the ground beam main body 1, the side support table 4 is a part of the ground beam main body 1, and is flush with the ground beam main body 1 up and down, so as to widen the middle of the ground beam main body 1, so that two steel pipe piles are installed at the bottom of the ground beam main body. H-shaped steel upright posts 41 are pre-buried on the middle of the top of the ground beam main body 1 and the side support table 4, and steel pipe pile preformed holes 11 are formed in the middle of the bottom of the ground beam main body 1 and below the side support table 4 and used for placing steel pipe piles. The upper portion of the ground beam main body 1 adopts H-shaped steel as a supporting upright post, and the lower structure adopts a steel pipe pile as a foundation, so that the requirement of a sound barrier structure is met.

As a preferable scheme, the top of the ground beam main body 1 and the side support table 4 are vertically provided with pouring holes 42, and the pouring holes 42 are communicated with the steel pipe pile reserved holes 11. The connection between the components of the precast floor beam main body 1 and the steel pipe pile adopts grouting from the grouting holes 42 inwards, the connection mode is simple, the construction is convenient, the integrity is good, and the site dust pollution can be effectively reduced.

The novel sound barrier prefabricated ground beam can be completely prefabricated in a factory, on-site sections are connected by adopting screws, grouting in the grouting holes 32 is completed, the construction period is short, and the damage degree to the existing roadbed is small. The screw rod is adopted for connection, the connection mode is simple, the construction is convenient, the integrity is good, and the site dust pollution can be effectively reduced. The utility model can realize the functions of low labor intensity and high construction precision, has simple working procedures, convenient disassembly and assembly, safety and reliability, can adapt to different working conditions and meets the requirement of prefabrication of the sound barrier of the highway subgrade section.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. These undisclosed elements are all of the prior art known to those skilled in the art.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a highway subgrade section sound barrier precast ground beam which characterized in that: the novel ground beam comprises a ground beam main body (1), wherein a bottom connecting table (2) is arranged at the bottom of one side of the ground beam main body (1), and a first screw rod (21) is arranged on the bottom connecting table (2); a top side connecting table (3) is arranged at the top of the other side of the ground beam main body (1), a cast-in-situ groove (31) is formed in the top of the top side connecting table (3), a screw reserved hole (32) is vertically formed in the cast-in-situ groove (31), and the position of the screw reserved hole (32) is matched with the mounting position of the first screw (21); after the adjacent two ground beam main bodies (1) are installed in a superposed mode:

the extending end of the first screw (21) is positioned in the screw preformed hole (32) and is fixed in the cast-in-situ groove (31) through a nut (35);

or, a second screw (33) is arranged in the screw preformed hole (32), the bottom of the second screw (33) is fixedly connected with the first screw (21) through a threaded sleeve (22), and the top of the second screw (33) is fixed in the cast-in-situ groove (31) through a nut (35).

2. The sound barrier prefabricated ground beam for a highway subgrade segment according to claim 1, wherein: the nut (35) is used for fixing the second screw rod (33) in the cast-in-situ groove (31) through a nut gasket (34).

3. The sound barrier prefabricated ground beam for a highway subgrade segment according to claim 2, wherein: the diameter of the screw preformed hole (32) is larger than the diameter of the second screw (33).

4. The sound barrier prefabricated ground beam for a highway subgrade segment according to claim 1, wherein: at least two first screws (21) and screw preformed holes (32) are respectively arranged, and the cast-in-situ groove (31) is of a strip-shaped structure.

5. The sound barrier prefabricated ground beam for a highway subgrade segment according to claim 1, wherein: the ground beam main body (1), the bottom connecting table (2) and the top connecting table (3) are of an integrated structure.

6. The sound barrier prefabricated ground beam for a highway subgrade segment according to claim 5, wherein: the top of the bottom connecting table (2) is obliquely upwards, and the bottom of the top side connecting table (3) is obliquely downwards.

7. The sound barrier prefabricated ground beam for a highway subgrade segment according to claim 1, wherein: one side is equipped with side brace table (4) in the middle of the top of girder body (1), is equipped with H shaped steel stand (41) in the middle of the top of girder body (1) and on side brace table (4), has seted up steel-pipe pile preformed hole (11) in the middle of the bottom of girder body (1) and under side brace table (4).

8. The sound barrier prefabricated ground beam for a highway subgrade segment according to claim 7, wherein: and pouring holes (42) are vertically formed in the top of the ground beam main body (1) and the side support table (4), and the pouring holes (42) are communicated with the steel pipe pile preformed holes (11).