CN210342568U

CN210342568U - Concrete ground anti-cracking structure

Info

Publication number: CN210342568U
Application number: CN201920915217.3U
Authority: CN
Inventors: 赵杭波; 王晓瑜; 侯圣铁; 黄洁琼; 吴于萍
Original assignee: Zhejiang Zhancheng Construction Group Co Ltd
Current assignee: Zhejiang Zhancheng Construction Group Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-04-17
Anticipated expiration: 2029-06-18

Abstract

The utility model provides a concrete ground anti-crack structure, including ground and the concrete layer of ground upside, concrete layer includes the concrete unit of rectangle, and is adjacent be equipped with the expansion joint between the concrete unit, expansion joint department is equipped with the steel slat, the steel slat lateral part is equipped with spacing lath, the steel slat with be equipped with spacing hole on the spacing lath, spacing downthehole dowel steel that is equipped with, the dowel steel both ends are inlayed adjacently in the concrete unit. In the anti-crack structure, the dowel bar is convenient and quick to install and good in posture stability.

Description

Concrete ground anti-cracking structure

Technical Field

The utility model relates to a building technical field especially relates to a concrete floor anti-structure of splitting.

Background

The concrete floor of modern industrial factory buildings has a large area, and the requirement on the crack resistance of the floor is higher and higher. The large area concrete floor is cracked due to the self-expansion and contraction deformation, so the concrete floor is usually divided into a plurality of blocks, and expansion joints are formed between adjacent blocks. The expansion joint can be provided with a dowel bar to transfer horizontal load and limit the settlement of adjacent blocks, one end of the dowel bar is arranged in the concrete block at one side of the expansion joint, and the other end of the dowel bar is arranged in a hole or a sleeve on the opposite concrete block in a telescopic manner, so that the dowel bar needs to be horizontally arranged and is vertical to the side wall of the concrete block. To large tracts of land concrete plate, the dowel steel quantity of setting is more, and how to install the dowel steel fast and guarantee it and concrete block side surface vertical is an important problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a concrete floor anti-structure of splitting, dowel steel simple to operate is swift and its gesture stability is good.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a concrete ground anti-crack structure, include ground and the concrete layer of ground upside, concrete layer includes the concrete unit of rectangle, and is adjacent be equipped with the expansion joint between the concrete unit, expansion joint department is equipped with the lath, the lath lateral part is equipped with spacing lath, the lath with be equipped with spacing hole on the spacing lath, spacing downthehole dowel steel that is equipped with, the dowel steel both ends are inlayed adjacently in the concrete unit.

Preferably, the dowel bar is a ribbed bar.

Preferably, the dowel bar is arranged in the middle of the side edge of the adjacent concrete unit.

Preferably, the dowel bars are arranged adjacent to the lateral ends of the concrete units.

Preferably, the transfer bar at the end of the side edge of the concrete element is located 6-10cm from the side edge of the concrete element.

Preferably, a steel mesh is arranged in the concrete unit.

Preferably, the limiting laths are arranged on two sides of the steel lath.

Preferably, the limiting lath is provided with a guide cylinder.

To sum up, compare with prior art, the utility model has the advantages of: the steel plate strips and the limiting plate strips are connected and then transported to a construction site, and after the position of the steel plate strips is adjusted, the limiting rods are inserted into the limiting holes to be rapidly and accurately arranged.

Drawings

FIG. 1 is a force transfer lever layout of the present invention;

fig. 2 is a structural sectional view of the present invention.

The reference numbers in the figures are as follows:

1. the concrete unit comprises a foundation soil layer, a concrete layer 2, a concrete unit 21, an expansion joint 22, a steel plate strip 3, a limiting plate strip 4, a limiting hole 41, a guide cylinder 42, a dowel bar 5 and a reinforcing mesh 6.

Detailed Description

The invention will be further described with reference to the following examples in the drawings.

As shown in fig. 1 and 2, the concrete ground anti-cracking structure comprises a ground foundation layer 1 and a concrete layer 2 on the upper side of the ground foundation layer 1, wherein the concrete layer 2 comprises rectangular concrete units 21, and expansion joints 22 are arranged between the adjacent concrete units 21. Expansion joint 22 department is equipped with

steel strip

3, and 3 lateral parts of steel strip are equipped with spacing lath 4, are equipped with spacing hole 41 on steel strip 3 and the spacing lath 4, are equipped with dowel steel 5 in the

spacing hole

41, and 5 both ends of dowel steel are inlayed in adjacent concrete unit 21. After the dowel bar 5 is inserted into the limiting hole 41, the dowel bar 5 and the limiting lath 4 can be welded, the steel plate strip 3 and the limiting lath 4 extend from one end of the concrete unit 21 to the other end, and the steel plate strip 3 is connected with the limiting lath 4 through bolts. A supporting frame is arranged between the lower end of the steel plate strip 3 and the foundation soil layer, or the steel plate strip 3 extends to the foundation soil layer 1 from top to bottom. The number of the limiting laths 4 is two, the two limiting laths are symmetrically arranged on two sides of the steel lath 3, and the limiting laths 4 are provided with guide cylinders 42. The guide cylinder 42 is perpendicular to the limiting laths 4 and the steel laths 3, and can be a cylindrical cylinder or a structure with a semicircular opening-oriented section so as to limit and guide the force transmission rod 5 without arranging a support structure or adjusting the angle of the guide rod. The assembled dowel bar 5 is perpendicular to the side surface of the concrete unit 21, the position of the dowel bar is not changed in the pouring process, and overlarge resistance between the dowel bar 5 and a hole in the concrete unit 21 is avoided.

And a dowel bar 5 is arranged in the middle of the side edge of the adjacent concrete unit 21. The middle part of the side edge of the concrete unit 21 can be provided with one dowel bar 5, two or more dowel bars 5 can be symmetrically arranged relative to the middle part of the concrete unit 21, the number of the dowel bars is determined according to the size of the concrete unit 21, and the distance between the adjacent dowel bars 5 and the corner of the dowel bar 5 is less than 1 meter. The end part of the side edge of the adjacent concrete unit 21 is provided with a dowel bar 5. Four concrete unit 21 concatenation angular position is equipped with four dowel bars 5, and it constitutes the rectangle structure to strengthen concrete unit 21 end angular position, avoid stress concentration to lead to damaging. The dowel bar 5 at the end of the side edge of the concrete unit 21 is 6-10cm away from the side edge of the concrete unit 21. The lower end of the steel plate strip 3 can be selected as a ribbed steel bar rod through a dowel bar 5, and the structural material is easily obtained from a construction site. As shown in fig. 2, a steel mesh 6 is arranged in the concrete unit 21, and the steel mesh 6 includes transverse steel bars and longitudinal steel bars which are arranged perpendicularly in a crossing manner.

The above description is only for explaining the present invention, so that the person skilled in the art can completely implement the present invention, but not for limiting the present invention, and after reading the present specification, the person skilled in the art can make modifications to the present embodiment as required without inventive contribution, which are all modifications without inventive contribution, but are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a concrete ground anti-crack structure, includes ground (1) and concrete layer (2) of ground (1) upside, its characterized in that: concrete layer (2) are including concrete unit (21) of rectangle, and are adjacent be equipped with expansion joint (22) between concrete unit (21), expansion joint (22) department is equipped with steel sheet strip (3), steel sheet strip (3) lateral part is equipped with spacing lath (4), steel sheet strip (3) with be equipped with spacing hole (41) on spacing lath (4), be equipped with dowel steel (5) in spacing hole (41), dowel steel (5) both ends are inlayed adjacently in concrete unit (21).

2. The concrete ground crack-resistant structure according to claim 1, wherein: the dowel bar (5) is a ribbed steel bar rod.

3. The concrete ground crack-resistant structure according to claim 1, wherein: the middle part of the side edge of the adjacent concrete unit (21) is provided with the dowel bar (5).

4. The concrete ground crack-resistant structure according to claim 1, wherein: the dowel bar (5) is arranged at the end part of the side edge of the adjacent concrete unit (21).

5. The concrete ground crack-resistant structure according to claim 4, wherein: the dowel bar (5) at the end part of the side edge of the concrete unit (21) is 6-10cm away from the side edge of the concrete unit (21).

6. The concrete ground crack-resistant structure according to claim 1, wherein: and a steel bar net piece (6) is arranged in the concrete unit (21).

7. The concrete ground crack-resistant structure according to claim 1, wherein: the limiting laths (4) are arranged on two sides of the steel lath (3).

8. The concrete ground crack-resistant structure according to claim 1, wherein: and a guide cylinder (42) is arranged on the limiting lath (4).