CN216141834U

CN216141834U - Tenon fourth of twelve earthly branches structure reinforced concrete composite curb

Info

Publication number: CN216141834U
Application number: CN202023035884.4U
Authority: CN
Inventors: 孟庆丽; 苗秋丽; 孟庆鑫
Original assignee: Long Xing Highway Investigation Designs Co ltd Of Heilongjiang Province
Current assignee: Long Xing Highway Investigation Designs Co ltd Of Heilongjiang Province
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-03-29
Anticipated expiration: 2030-12-10

Abstract

The utility model relates to a reinforced concrete composite curb with a mortise and tenon structure, which is characterized in that the composite curb is provided with an L-shaped cross section formed by a horizontal curb belt and a vertical curb. The two ends of the bottom of the horizontal curb belt of the composite curb are respectively provided with a convex tooth and a groove, and the composite curb is connected with the groove through the convex tooth to form a tenon-and-mortise structure. The composite kerbstone is of a reinforced concrete structure, the horizontal kerbstone and the vertical kerbstone share a steel bar mesh which is folded into an L shape, the steel bar mesh is positioned in the center of the vertical kerbstone and is 2cm away from the bottom of the horizontal kerbstone, and the longitudinal steel bars extend into the convex teeth. This compound curb adopts L type cross section, combines curb and curb area as an organic whole, has improved the vertical stability of curb greatly. The combined kerbstone is connected through the tenon-and-mortise structure, horizontal restraint between the kerbstones is enhanced, and the overall stability of the kerbstones is further improved. This compound curb adopts reinforced concrete structure, greatly increased the intensity of curb to can prolong the prefabricated length of curb, reduce the quantity of seam.

Description

Tenon fourth of twelve earthly branches structure reinforced concrete composite curb

Technical Field

The utility model relates to a reinforced concrete composite curb with a mortise and tenon structure, which adopts a reinforced concrete structure and integrates the curb with a curb belt.

Background

The curb is a rectangular parallelepiped standard block provided between a road surface and another structure. Curb stones are generally required to be arranged between the separation zones and the road surface of the urban road and between the sidewalks and the road surface, the curb stones are usually required to be arranged at the edges of the central separation zones of the road, the right side edges of the carriageways or the outer edges of the shoulders, and the curb stones are also arranged at the scenic spots, the park travelers and the two sides of the special lanes for the bicycles. Traditional curb usually has two kinds of forms, one is ordinary concrete prefabrication, and one is the stone material processing, and its cross section is the rectangle. Traditional curb erects at the roadside, relies on self gravity and both sides pressure to remain stable. Because there is the discrepancy in elevation often in curb both sides, and the filling material is different, and the easy slope is out of shape under the exogenic action, and vertical stability is extremely poor. Traditional curb only depends on cement mortar to fix as the adhesive each other, lacks the restraint all around, takes place horizontal displacement easily in construction and the use, further destroys the overall stability of curb. In addition, traditional concrete structure's curb is mostly plain concrete structure, and intensity is more weak, and easy breakage or fracture in prefabrication, transport and work progress, prefabricated length also receives the influence.

Disclosure of Invention

(1) Technical problem to be solved

The utility model relates to a reinforced concrete composite curb with a mortise and tenon structure, which overcomes the defects and mainly solves the problems of poor stability and low strength of the curb. This compound curb adopts L type cross section, combines curb and curb area as an organic whole, has improved the vertical stability of curb greatly. The combined kerbstone is connected through the tenon-and-mortise structure, horizontal restraint between the kerbstones is enhanced, and the overall stability of the kerbstones is further improved. This compound curb adopts reinforced concrete structure, greatly increased the intensity of curb, consequently be difficult to damage in construction and handling to can prolong the prefabricated length of curb, reduce the quantity of seam.

(2) Technical scheme

The utility model relates to a reinforced concrete composite curb with a mortise and tenon structure, which is characterized in that an L-shaped cross section is formed by vertical curb stones and transverse curb belts. The vertical kerbstone of compound kerbstone has the chamfer by the driving direction top, can reduce the injury of bumping by mistake to people's car. The horizontal curb of compound curb takes bottom both ends to be equipped with 2 protruding tooth and recess respectively, forms tenon fourth of twelve earthly branches structure through protruding tooth and groove connection between the compound curb. The composite kerbstone adopts the grid type steel bars as the framework, and the steel bars extend into the convex teeth to increase the strength of the convex teeth. The composite kerbstone is formed in one step by adopting concrete pouring and prefabricating.

(3) Advantageous effects

By the end of 2019, the total mileage of the highway in China reaches 485 kilometers, and in addition, the highway has huge urban roads, special roads for bicycles, walking roads in parks and scenic spots, and the like, so that the demands of road new construction, reconstruction, extension and maintenance on curbs are huge. Because the traditional kerbstone has poor stability and is easy to damage by rain wash or vehicle collision, the tenon-and-mortise structure reinforced concrete composite kerbstone related to the utility model has good stability and large structural strength, and is expected to replace the traditional kerbstone to generate great economic benefit.

Drawings

The utility model is further described with reference to the following figures and examples:

FIG. 1 is a construction drawing of a reinforced concrete composite curb with a mortise and tenon structure

FIG. 2 is a mortise and tenon structure diagram of a reinforced concrete composite curb with a mortise and tenon structure;

FIG. 3 is a perspective view of a reinforced concrete composite curb with a mortise and tenon structure;

FIG. 4 is a top view of the arrangement of reinforced concrete composite kerb steel bars in mortise and tenon joint structure;

FIG. 5 is a rear view of the arrangement of the steel bars of the reinforced concrete composite kerb with mortise and tenon structures

FIG. 6 is a side view of the reinforced concrete composite curb steel bar arrangement of mortise and tenon structure

In the figure: 1. a composite kerbstone; 2. a sidewalk pavement; 3. a sidewalk cushion layer; 4. a roadbed; 5. cement mortar adhesive; 6. a roadway surface; 7. a groove; 8. a horizontal curb belt; 9. a convex tooth; 10. a vertical kerbstone; 11. connecting seams; 12. a mortise and tenon joint structure; 13. a reinforcing mesh; 14. and (6) rounding and chamfering.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.

Compound curb (1) constitutes L type cross section by horizontal curb area (8) and perpendicular curb (10), has improved the vertical stability of curb by a wide margin. The upper surface of the horizontal curb belt (8) is flush with the roadway (2), and the thickness of the horizontal curb belt (8) can be the same as or different from that of the roadway (6). The top of the vertical kerbstone (10) is flush with the pavement (2), and the thicknesses of the pavement (2), the pavement cushion (3) and the roadbed (4) can be adjusted.

The horizontal curb belt (8) bottom both ends of compound curb (1) are equipped with 2 protruding tooth (9) and recess (7) respectively, connect through protruding tooth (9) and recess (7) between compound curb (1) and form tenon fourth of twelve earthly branches structure (12). The length of the convex teeth (9) is the same as that of the groove (7), the width of the convex teeth (9) is 2cm smaller than that of the groove (7), and the height of the convex teeth (9) is 1 cm smaller than that of the groove (9). During construction, 1 cm of connecting joint (11) is reserved between the composite curb stones (1), and the thickness of the cement mortar adhesive (5) at the connecting joint (11) and between the convex teeth (9) and the grooves (7) is guaranteed to be 1 cm.

The composite kerbstone (1) is of a reinforced concrete structure, the horizontal kerbstone (8) and the vertical kerbstone (10) share a steel bar mesh (13) which is folded into an L shape, and the steel bar mesh (13) is positioned in the center of the vertical kerbstone (10) and is 2cm away from the bottom of the horizontal kerbstone (8). Longitudinal reinforcing bars extend into the teeth (9) to increase the strength of the teeth (9) portion.

A round chamfer (14) is arranged on one side, close to the traffic lane, of the top of the vertical kerbstone of the composite kerbstone so as to reduce the damage to people and vehicles due to mistaken collision.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications that are made without departing from the spirit and principle of the present invention should be regarded as being equivalent to the scope of the present invention.

Claims

1. A tenon-and-mortise structure reinforced concrete composite kerb is characterized in that the composite kerb (1) is formed by a horizontal kerb belt (8) and a vertical kerb (10) into an L-shaped cross section; the two ends of the bottom of a horizontal curb belt (8) of the composite curb stone (1) are respectively provided with a convex tooth (9) and a groove (7), and the composite curb stones (1) are connected through the convex tooth (9) and the groove (7) to form a mortise and tenon joint structure (12); the length of the convex teeth (9) is the same as that of the grooves (7), the width of the convex teeth (9) is 2cm smaller than that of the grooves (7), and the height of the convex teeth (9) is 1 cm smaller than that of the grooves (7); during construction, 1 centimeter of connecting joints (11) are reserved among the composite curb stones (1), and the thickness of the cement mortar adhesive (5) at the connecting joints (11) and between the convex teeth (9) and the grooves (7) is guaranteed to be 1 centimeter.

2. The reinforced concrete composite curb of tenon fourth of twelve earthly branches structure of claim 1, characterized in that: the composite kerbstone (1) is of a reinforced concrete structure, the horizontal kerbstone (8) and the vertical kerbstone (10) share a reinforcing steel bar net (13) which is folded into an L shape, and the reinforcing steel bar net (13) is positioned in the center of the vertical kerbstone (10) and is 2cm away from the bottom of the horizontal kerbstone (8); the longitudinal reinforcing steel bars extend into the convex teeth (9).