Assembly type flat-top large-span column-free underground structure

Abstract

The invention belongs to the field of underground engineering construction and relates to an assembly type flat-top large-span column-free underground structure which comprises an enclosure structure,a flat-top layer board, a first layer board and first side wall prefabricated parts. The flat-top layer board and the first layer board are arranged in the enclosure structure, first side walls are arranged on the two sides of the first layer board, the two ends of the flat-top layer board are arranged on the two first side walls on the two sides respectively, and the first side walls comprise the first side wall prefabricated parts. Each first side wall prefabricated part comprises a vertical section, a horizontal section and an inclined supporting section, the bottom of the vertical sectionis connected with the first layer board, the top of the vertical section is connected with one end of the horizontal section, and the other end of the horizontal section is connected with one end ofthe inclined supporting section, and the other end of the inclined supporting section is connected with the vertical section. The flat-top layer board is supported through the triangular-frame-shapedfirst side wall prefabricated parts, the flat-top column-free effect is achieved, the vision column-free large-space effect of the building is well achieved, the foundation pit buried depth is slightly increased, no arch foot external expansion thrust exists, and the structural stability is improved.

Description

technical field

[0001] The invention belongs to the technical field of underground engineering construction, and in particular relates to an assembled flat-roofed large-span column-free underground structure. Background technique

[0002] At present, the open excavation method is used to construct the underground structure with internal support foundation pit using the traditional cast-in-place reinforced concrete structure construction technology, the design process is complicated, and the workload is large; the on-site construction process requires a lot of labor of various types, and the construction environment is poor. , The construction process is complicated, the construction speed is slow, and it is greatly affected by various weather and climate, so the construction quality is difficult to guarantee. At the same time, a lot of abandoned construction waste will be generated during the construction process, which not only wastes resources but also pollutes the environ...

Examples

Embodiment 1

[0045] like Figure 1-2 As shown, this embodiment provides a prefabricated flat-roofed large-span column-free underground structure, including two enclosure structures 1, a flat-roof layer, a first layer and a first side wall prefabricated part 12, and the two enclosures Structure 1 is provided with a flat top floor and a first floor, both sides of the first floor are provided with first side walls, and the two ends of the flat top floor are respectively arranged on the two first side walls on both sides ; The first side wall comprises a first side wall prefabricated part 12, and the first side wall prefabricated part 12 comprises a vertical section 13, a horizontal section 14 and an oblique support section 15, and the bottom of the vertical section 13 is connected with the first laminate, and the vertical The top of the straight section 13 is connected with one end of the horizontal section 14, and the other end of the horizontal section 14 is connected with one end of the ob...

Embodiment 2

[0059] Such as Figure 4-6 As shown, this embodiment provides a connection structure between the prefabricated part and the cast-in-place concrete layer, which can be used when the first side wall in the first embodiment adopts a laminated structure, and the first layer adopts a fully cast-in-place or laminated structure The connection between the first side wall prefabricated part 12 and the first cast-in-place layer 11 or the first cast-in-place laminate can also be used for the second side wall to adopt a laminated structure, and the second laminate to adopt a fully cast-in-place or laminated structure. The connection between the second side wall prefabricated part 8 and the second layer slab cast-in-place layer or the reinforced concrete cast-in-place layer 5 during structure; For example, the connection structure between the first side wall prefabricated part 12 and the first cast-in-place laminate, the connection structure between the second side wall prefabricated part ...

Embodiment 3

[0068] This embodiment provides a prefabricated part-to-prefabricated connection structure, which can be used for the connection between the first ply prefabricated part 10 and the first ply prefabricated part 10 when the first ply board adopts a superimposed structure in the first embodiment. Connection, the connection between the second layer prefabricated part and the second layer prefabricated part when the second layer adopts the superimposed structure, the flat top layer prefabricated part 16 and the flat top layer prefabricated part 16 when the flat top layer adopts the superimposed structure The connection between; now take the connection structure of two first layer prefabricated parts 10 when the first layer board adopts a superimposed structure as an example to illustrate, the connection structure of two second layer board prefabricated parts, two flat top layer boards The connection structure of the prefabricated part 16 is the same as it, and will not be described ...

technical field

[0001] The invention belongs to the technical field of underground engineering construction, and in particular relates to an assembled flat-roofed large-span column-free underground structure. Background technique

[0002] At present, the open excavation method is used to construct the underground structure with internal support foundation pit using the traditional cast-in-place reinforced concrete structure construction technology, the design process is complicated, and the workload is large; the on-site construction process requires a lot of labor of various types, and the construction environment is poor. , The construction process is complicated, the construction speed is slow, and it is greatly affected by various weather and climate, so the construction quality is difficult to guarantee. At the same time, a lot of abandoned construction waste will be generated during the construction process, which not only wastes resources but also pollutes the environ...

Examples

Embodiment 1

[0045] like Figure 1-2 As shown, this embodiment provides a prefabricated flat-roofed large-span column-free underground structure, including two enclosure structures 1, a flat-roof layer, a first layer and a first side wall prefabricated part 12, and the two enclosures Structure 1 is provided with a flat top floor and a first floor, both sides of the first floor are provided with first side walls, and the two ends of the flat top floor are respectively arranged on the two first side walls on both sides ; The first side wall comprises a first side wall prefabricated part 12, and the first side wall prefabricated part 12 comprises a vertical section 13, a horizontal section 14 and an oblique support section 15, and the bottom of the vertical section 13 is connected with the first laminate, and the vertical The top of the straight section 13 is connected with one end of the horizontal section 14, and the other end of the horizontal section 14 is connected with one end of the ob...

Embodiment 2

[0059] Such as Figure 4-6 As shown, this embodiment provides a connection structure between the prefabricated part and the cast-in-place concrete layer, which can be used when the first side wall in the first embodiment adopts a laminated structure, and the first layer adopts a fully cast-in-place or laminated structure The connection between the first side wall prefabricated part 12 and the first cast-in-place layer 11 or the first cast-in-place laminate can also be used for the second side wall to adopt a laminated structure, and the second laminate to adopt a fully cast-in-place or laminated structure. The connection between the second side wall prefabricated part 8 and the second layer slab cast-in-place layer or the reinforced concrete cast-in-place layer 5 during structure; For example, the connection structure between the first side wall prefabricated part 12 and the first cast-in-place laminate, the connection structure between the second side wall prefabricated part ...

Embodiment 3

[0068] This embodiment provides a prefabricated part-to-prefabricated connection structure, which can be used for the connection between the first ply prefabricated part 10 and the first ply prefabricated part 10 when the first ply board adopts a superimposed structure in the first embodiment. Connection, the connection between the second layer prefabricated part and the second layer prefabricated part when the second layer adopts the superimposed structure, the flat top layer prefabricated part 16 and the flat top layer prefabricated part 16 when the flat top layer adopts the superimposed structure The connection between; now take the connection structure of two first layer prefabricated parts 10 when the first layer board adopts a superimposed structure as an example to illustrate, the connection structure of two second layer board prefabricated parts, two flat top layer boards The connection structure of the prefabricated part 16 is the same as it, and will not be described ...

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