CN218203840U - Concrete gallery bridge plate upper plate node structure - Google Patents

Abstract

The utility model provides a concrete gallery bridge plate upper plate node structure, including the gallery bridge plate, the upper end of gallery bridge is equipped with the backfill layer, be equipped with the barricade between backfill layer and the off-site road, the backfill layer is foam concrete layer and upper plate from bottom to top in proper order. The utility model discloses simple structure, convenient operation, perfect solution off-site road difference in height when big and can't put the slope, the problem that the landing stage board can not communicate in off-site road and the scene that causes has improved current convenience, makes things convenient for the transportation of the inside and outside material of scene.

Description

A concrete trestle slab-slab joint structure

technical field

The utility model relates to the technical field of trestle boards, in particular to a concrete trestle board board node structure.

Background technique

When constructing a deep foundation pit support system, concrete trestle slabs are usually poured according to the road conditions in the construction site. Usually, the design height of the trestle slab inside the site is consistent with the height of the road surface outside the site to facilitate the passage of transport vehicles. However, due to the actual For various reasons, the roads outside the site may be higher than the designed trestle slabs on the site. At this time, it is necessary to enter on a slope. If it is a project in the urban area, there is no large space for grading, which will cause uneven roads inside and outside the site. Connectivity situation.

Contents of the invention

Aiming at the above-mentioned prior art, the utility model proposes a concrete trestle slab-slab node structure.

The utility model provides a concrete trestle slab-slab node structure, comprising a trestle slab, the upper end of the trestle bridge is provided with a backfill layer, a retaining wall is provided between the backfill layer and the off-site road, and the backfill layer From bottom to top are the foam concrete layer and the upper plate.

Preferably, the height of the foamed concrete layer is 20cm lower than that of the off-site road.

Preferably, the thickness of the upper plate is 20cm.

Preferably, the upper slab includes steel mesh sheets in the inner layer and concrete layers in the outer layer.

Preferably, the retaining wall is placed on the upper end of the ring beam.

Preferably, the retaining wall includes reserved longitudinal reinforcement and binding transverse reinforcement in the inner layer and a concrete layer in the outer layer, and the diameter of the reserved longitudinal reinforcement is 25mm.

Compared with the prior art, the beneficial effect of the utility model is: because of the ups and downs of the off-site road, the off-site road enters the trestle board in the construction site and needs to be sloped, but when the space distance is not enough, the reasonable slope cannot be carried out. The utility model utilizes the slab-on-slab technology to solve such problems. It uses foam concrete to level the completed trestle slab to the same elevation as the outside, binds the steel mesh, and then pours a layer of trestle slab to form a slab-on-slab structure, namely It can be connected with roads inside and outside the venue. The utility model has the advantages of simple structure and convenient operation, which perfectly solves the problem that the off-site road and the internal trestle board cannot be connected when the height difference of the off-site road is large and cannot be sloped, which improves the convenience of traffic and facilitates the use of materials on and off the site. transportation.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

In the figure: 1. trestle slab; 2. off-site road; 3. retaining wall; 4. foam concrete layer; 5. upper slab; 6. ring beam; 7. lattice column support system; 8. support pile.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific illustrations.

Example

A kind of concrete trestle slab slab node structure, as shown in Figure 1, comprises trestle slab 1, and the lower end of trestle slab 1 is provided with lattice column support system 7, and the upper end of trestle bridge 1 is provided with backfill layer, and described backfill layer and A retaining wall 3 is arranged between the off-site roads 2, and the backfill layer consists of a foam concrete layer 4 and an upper plate 5 from bottom to top. The height of the foam concrete layer 4 is 20cm lower than that of the off-site road 2, and the The thickness is 20cm, the upper plate 5 includes the steel mesh sheet of the inner layer and the concrete layer of the outer layer, the retaining wall 3 is placed on the upper end of the ring beam 6, and the retaining wall 3 includes the reserved longitudinal reinforcement and the binding transverse reinforcement of the inner layer and the outer layer concrete layer, the diameter of the reserved longitudinal reinforcement is 25mm.

The construction steps of this embodiment are as follows: the lattice column support system 7 is normally constructed according to the drawings, and the longitudinal reinforcement of the retaining wall 3 is reserved when the ring beam 6 at the top of the retaining pile 8 is bound in the lattice column support system 7. The diameter is 25mm, the reserved length is the height difference between the trestle slab 1 and the off-site road 2, and the longitudinal reinforcement is reserved in the ring beam 6, which meets the specification requirements for anchorage. When the trestle slab 1 on the lattice column support system 7 is poured 3 days after the horizontal reinforcement of the retaining wall 3 is bound, the formwork is set up, and the retaining wall 3 is poured to resist the earth pressure outside the site. After the formwork is removed, the trestle slab 1 The upper end of the road is backfilled and leveled with foam concrete. The outer leveling height is 20cm lower than the off-site road 2, and the interior can be adjusted according to the needs of the site. After the strength of the foam concrete increases, the steel mesh sheets of the upper plate 5 can be bound, and then the upper plate 5 is poured with a thickness of 20 cm, so that the height of the upper plate 5 is consistent with the height of the road 2 outside the site, and the roads inside and outside the site are connected. Easy access.

This embodiment is simple in structure and easy to operate. It perfectly solves the problem that the off-site road and the on-site trestle board cannot be connected when the height difference of the off-site road is large and cannot be sloped. transportation.

The above are only embodiments of the present utility model, and are not intended to limit the scope of patents of the present utility model. All equivalent structures made using the description of the utility model and the contents of the accompanying drawings are directly or indirectly used in other related technical fields, all in the same way Within the scope of patent protection of the utility model.

Claims (6)

1. The utility model provides a concrete gallery bridge board upper plate node structure, its characterized in that, includes the gallery bridge board, the upper end of gallery bridge is equipped with the backfill layer, be equipped with the barricade between backfill layer and the off-site road, the backfill layer is foam concrete layer and upper plate from bottom to top in proper order.

2. The concrete plank upper panel node structure of claim 1, wherein the height of said foamed concrete layer is 20cm lower than the height of the off-site road.

3. The concrete plank upper deck node structure of claim 2, wherein said upper deck has a thickness of 20cm.

4. The concrete plank bridge upper plate node structure of any one of claims 1-3, wherein said upper plate comprises an inner layer of steel mesh and an outer layer of concrete.

5. The concrete plank upper plate node structure of any one of claims 1-3, wherein said retaining wall is placed on the upper end of the ring beam.

6. The concrete plank bridge upper plate node structure of any one of claims 1 to 3, wherein said retaining wall comprises an inner layer of reserved longitudinal steel bars and tie transverse steel bars and an outer layer of concrete, said reserved longitudinal steel bars having a diameter of 25mm.

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