CN207003636U - Steel structure integration pit structure - Google Patents

Abstract

The utility model relates to a steel structure integrated bottom pit structure, comprising a reinforced concrete prefabricated bottom plate installed at the bottom of the foundation pit and four reinforced concrete prefabricated shear walls respectively installed on the four side walls of the foundation pit, all the reinforced concrete The prefabricated shear walls are all placed on the reinforced concrete prefabricated bottom slab, the upper surface of the reinforced concrete prefabricated bottom slab is provided with an upper connecting steel plate, and the lower surface of the reinforced concrete prefabricated shear wall is provided with butt-welded with the upper connecting steel plate Lower connection plate. The structure design of the utility model is simple and reasonable. After the excavation of the foundation pit, no formwork needs to be installed on site, and the reinforced concrete prefabricated bottom plate and reinforced concrete prefabricated shear wall are directly used to reduce the on-site construction time, cost and man-hours, and has broad application prospects.

Description

Integrated pit structure with steel structure

technical field

The utility model relates to a steel structure integrated bottom pit structure.

Background technique

The elevator pit is an important part of the elevator shaft. The existing pits are generally welded and poured on-site with steel pipes. The construction time is long and difficult, and the requirements for construction personnel are high, which has certain limitations. .

Utility model content

In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a steel structure integrated pit structure, which is not only reasonable in structure design, but also efficient and convenient.

In order to solve the above technical problems, the technical solution of the present utility model is: a steel structure integrated bottom pit structure, including a reinforced concrete prefabricated bottom plate installed at the bottom of the foundation pit and four reinforced concrete bottom plates respectively installed on the four side walls of the foundation pit. Prefabricated shear walls, all of the reinforced concrete prefabricated shear walls are placed on the reinforced concrete prefabricated bottom slab, the upper surface of the reinforced concrete prefabricated bottom slab is provided with upper connecting steel plates, and the lower surface of the reinforced concrete prefabricated shear walls A lower connecting steel plate for butt welding with the upper connecting steel plate is provided.

Preferably, the corner between any two adjacent reinforced concrete prefabricated shear walls is provided with an inner L-shaped steel plate and an outer L-shaped steel plate connecting the two, the reinforced concrete prefabricated shear wall, the inner L-shaped steel plate And concrete is poured in the space surrounded by the outer L-shaped steel plate.

Preferably, butt joint reinforcement bars are reserved in the foundation pit for respectively butt joint with the reinforced concrete prefabricated floor and the reinforced concrete prefabricated shear wall.

Preferably, the inner surface of the reinforced concrete prefabricated base plate and the reinforced concrete prefabricated shear wall is provided with a waterproof coating layer.

Compared with the prior art, the utility model has the following beneficial effects: the structure design of the utility model is simple and reasonable. After the excavation of the foundation pit, no formwork needs to be installed on site, and the reinforced concrete prefabricated floor and the reinforced concrete prefabricated shear wall are directly used, reducing On-site construction time is reduced, costs and man-hours are reduced, and it has broad application prospects.

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Description of drawings

Fig. 1 is an exploded schematic view of the structure of the embodiment of the utility model.

Fig. 2 is an assembly diagram of the structure of the embodiment of the utility model.

Fig. 3 is a schematic top view of the structure of the embodiment of the utility model.

Fig. 4 is a schematic structural view of the buffer of the embodiment of the present utility model.

In the figure: 1- foundation pit, 2- reinforced concrete prefabricated floor, 3- reinforced concrete prefabricated shear wall, 4- upper connecting steel plate, 5- lower connecting steel plate, 6- inner L-shaped steel plate, 7- outer L-shaped steel plate, 8-waterproof paint layer, 9-buffer, 901-cylinder body, 902-piston sleeve, 903-bearing plate, 904-pressing plate, 905-guide column, 906-first spring, 907-second spring.

detailed description

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific examples are given together with the accompanying drawings and described in detail as follows.

As shown in Figures 1 to 4, a steel structure integrated pit structure includes a reinforced concrete prefabricated bottom plate 2 installed at the bottom of the foundation pit 1 and four reinforced concrete prefabricated shear force plates respectively installed on the four side walls of the foundation pit 1. Wall 5, all of the reinforced concrete prefabricated shear walls 5 are placed on the reinforced concrete prefabricated floor 2, the upper surface of the reinforced concrete prefabricated floor 2 is provided with an upper connecting steel plate 4, and the reinforced concrete prefabricated shear walls 5 The lower surface is provided with a lower connecting steel plate 5 for butt welding with the upper connecting steel plate 4 .

In the embodiment of the present utility model, an inner L-shaped steel plate 6 and an outer L-shaped steel plate 7 connecting the two are arranged at the corners between any two adjacent reinforced concrete prefabricated shear walls 5, and the reinforced concrete prefabricated Concrete is poured in the space enclosed by the shear wall 5 , the inner L-shaped steel plate 6 and the outer L-shaped steel plate 7 .

In the embodiment of the present utility model, butt joint steel bars are reserved in the foundation pit 1 for respectively butt joint with the reinforced concrete prefabricated bottom plate 2 and the reinforced concrete prefabricated shear wall 5 .

In the embodiment of the present utility model, the inner surface of the reinforced concrete prefabricated bottom plate 2 and the reinforced concrete prefabricated shear wall 5 is provided with a waterproof coating layer 8 .

In the embodiment of the present utility model, buffers 9 are provided at the midpoints of the four sides of the foundation pit 1, and the buffers 9 include a cylinder 901, and a piston sleeve 902 that can move up and down is worn on the cylinder 901. The top end of the piston sleeve 902 protruding from the cylinder body 901 is provided with a bearing plate 903, the bottom end of the piston sleeve 902 extending into the cylinder body 901 is provided with a pressing plate 904, and the cylinder body 901 is provided with a threaded The guide column 905 in the piston sleeve 902 and slidingly matched with the piston sleeve 902, the first spring 906 is set on the piston sleeve 902, and the first spring 906 is placed between the bearing plate 903 and the cylinder body 901. A second spring 907 is sheathed on the guide column 905, and the second spring 907 is placed between the pressing plate 904 and the cylinder body 901. The bearing plate 903, the piston sleeve 902 and the pressing plate 904 are integrally made.

In the embodiment of the present utility model, there are gaps between the piston sleeve 902 and the cylinder body 901, and between the pressing plate 904 and the cylinder body 901. When the piston sleeve 902 moves up and down to compress the air, the cylinder body 901 is in an open state, and the heat generated by the compressed air can be dissipated quickly. During this process, the buffer 9 utilizes the first spring 906 and the second spring 907 for buffering.

The utility model is not limited to the above-mentioned best implementation mode, anyone can draw other various forms of steel structure integrated pit structures under the enlightenment of the utility model. All equivalent changes and modifications made according to the patent scope of the utility model should belong to the scope of the utility model.

Claims (4)

1. A steel structure integrated bottom pit structure is characterized in that: comprise the reinforced concrete prefabricated bottom plate that is installed on foundation pit bottom and four reinforced concrete prefabricated shear walls that are respectively installed on four side walls of foundation pit, all described The reinforced concrete prefabricated shear walls are all placed on the reinforced concrete prefabricated bottom slab, the upper surface of the reinforced concrete prefabricated bottom slab is provided with an upper connecting steel plate, and the lower surface of the reinforced concrete prefabricated shear wall is provided with an upper connecting steel plate. Welded lower connecting steel plate. 2. The steel structure integrated pit structure according to claim 1, characterized in that: the corners between any two adjacent reinforced concrete prefabricated shear walls are provided with inner L-shaped steel plates and The outer L-shaped steel plate, concrete is poured in the space enclosed by the reinforced concrete prefabricated shear wall, the inner L-shaped steel plate and the outer L-shaped steel plate. 3. The pit structure with integrated steel structure according to claim 1, characterized in that: butt joint steel bars for butt joints with the reinforced concrete prefabricated floor and the reinforced concrete prefabricated shear wall are reserved in the foundation pit. 4. The steel structure integrated pit structure according to claim 1, characterized in that: the inner surface of the reinforced concrete prefabricated bottom plate and the reinforced concrete prefabricated shear wall is provided with a waterproof coating layer.