An assembled rail transit station component

Abstract

The application relates to an assembled rail transit station component, which adopts a layout of prefabricated walls on two sides and prefabricated columns in the middle, and comprises prefabricated plates, prefabricated walls, prefabricated columns and prefabricated beams; the prefabricated plates are installed on the prefabricated walls and the prefabricated columns; a column end slot is arranged at the joint of the prefabricated plate and the prefabricated column, at least a part of the top end of the prefabricated column is inserted into the column end slot; a supporting seat is arranged on the side surface of the prefabricated column, the prefabricated beam is fixedly supported on the supporting seats of two adjacent prefabricated columns; an outer extending stirrup is arranged on the top of the prefabricated beam, a shear resisting slot is arranged on the prefabricated plate, the position of the shear resisting slot corresponds to the position of the outer extending stirrup on the top of the prefabricated beam, the outer extending stirrup on the top of the prefabricated beam extends from the shear resisting slot, and the lower surface of the prefabricated plate abuts against the upper surface of the prefabricated beam.

Description

Technical Field

[0001] This invention relates to the field of building structure technology, and more specifically to a prefabricated rail transit station component. Background Technology

[0002] With the acceleration of urbanization, the scale of rail transit construction is constantly expanding. Currently, rail transit station structures typically employ cast-in-place concrete construction technology. This process requires on-site formwork erection, rebar tying, and concrete pouring. Not only is the construction environment complex and highly susceptible to external factors, but it also generates significant noise, dust, and construction waste, severely impacting the surrounding environment and residents' lives. Due to the long construction period, the construction site often occupies roads or public spaces, leading to urban traffic congestion and exacerbating traffic pressure. Furthermore, this construction method is highly dependent on manual labor, requiring a large number of on-site workers and posing significant safety risks. For example, accidents such as collapses and falls from heights may occur during deep foundation pit construction, formwork dismantling and assembly, and concrete pouring.

[0003] To improve construction efficiency, reduce environmental pollution, and mitigate safety hazards, industrialized building has become an important development direction for rail transit construction, driven by the concept of sustainable development. Prefabricated building technology, due to its high degree of standardization, fast construction speed, and minimal environmental impact, has been widely used in the housing construction sector. However, due to the large spans, complex structures, and high load requirements of rail transit stations, the application of prefabricated technology in rail transit stations still faces many technical bottlenecks, particularly in component design, structural node connections, and seismic performance, where further technological breakthroughs are needed.

[0004] Therefore, developing a new type of prefabricated rail transit station component to achieve the industrialization, standardization, and greening of large-span station construction is of great significance for improving construction efficiency, ensuring project quality, and reducing environmental impact. Summary of the Invention

[0005] The present invention aims to provide a prefabricated rail transit station component. The technical problems to be solved include at least how to achieve industrialization, standardization and greening of the construction of large-span stations, improve construction efficiency, ensure project quality and reduce environmental impact.

[0006] To achieve the above objectives, the present invention provides a prefabricated rail transit station component, adopting a layout of prefabricated walls on both sides and prefabricated columns in the middle, including prefabricated slabs, prefabricated walls, prefabricated columns, and prefabricated beams; the prefabricated slabs are installed on the prefabricated walls and prefabricated columns; a column end slot is provided at the junction of the prefabricated slab and the prefabricated column, and at least a portion of the top of the prefabricated column is inserted into the column end slot; a support seat is provided on the side of the prefabricated column, and the prefabricated beam is fixedly supported on the support seats of two adjacent prefabricated columns; an outwardly extending stirrup is provided at the top of the prefabricated beam, and a shear-resistant groove is provided on the prefabricated slab, the position of which corresponds to the position of the outwardly extending stirrup at the top of the prefabricated beam, and the outwardly extending stirrup at the top of the prefabricated beam extends out from the shear-resistant groove; the lower surface of the prefabricated slab abuts against the upper surface of the prefabricated beam.

[0007] Preferably, the precast walls are symmetrically arranged on both sides of the precast slab, and the precast columns are vertically arranged between two adjacent precast walls.

[0008] Preferably, the precast wall has corbels on its side, and the end of the precast slab overlaps the corbels.

[0009] Preferably, shear reinforcement bars are evenly distributed on the upper surface of the corbel.

[0010] Preferably, the top surface height of the corbel is the same as the top surface height of the precast beam.

[0011] Preferably, the precast slab is provided with an end support at its end, and the precast slab is attached to the corbel through the end support; the end support has a pre-reserved strip-shaped slot, and additional reinforcing bars are placed inside the strip-shaped slot.

[0012] Preferably, an upper concrete post-cast layer is provided on the upper surface of the precast slab.

[0013] Preferably, the shear groove is a rectangular groove, the length of the shear groove is greater than the length of the concentrated arrangement area of ​​the outward-extending stirrups, the width of the shear groove is greater than the width of the outward-extending stirrups but less than the width of the precast beam, and the distance between the edge of the shear groove and the edge of the precast beam is at least 50mm.

[0014] Preferably, the precast slabs, precast walls, precast columns, and precast beams are all made of reinforced concrete and are transported to the construction site for assembly after being poured and cured in the factory.

[0015] Preferably, the upper surface of the precast slab is roughened.

[0016] This application also provides a method for on-site assembly of prefabricated rail transit station components, including the following steps: S1. The precast slabs, precast walls, precast columns and precast beams that have been poured and cured in the factory are transported to the construction site. The precast walls and precast columns are buried in the predetermined positions according to the construction standards. The precast walls are symmetrically set on both sides, and the precast columns are vertically set between two adjacent precast walls. S2. The end support of the precast slab is attached to the corbel on the side of the precast wall; the precast beam is fixedly supported on the support seats of two adjacent precast columns; the lower surface of the precast slab abuts against the upper surface of the precast beam; the outwardly extending stirrups at the top of the precast beam extend from the shear groove in the precast slab; the top of the precast column is inserted into the column end groove in the precast slab. S3. Place additional reinforcing bars inside the pre-reserved strip slots on the end supports of the precast slabs; S4. Pour the upper concrete post-cast layer on the upper surface of the precast slab so that the precast slab and the upper concrete post-cast layer together form the floor layer.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The prefabricated rail transit station components described in this invention are suitable for prefabricated construction of large-span station structures. They can ensure good stress distribution at the interface between precast beams and concrete composite slabs, improve the overall integrity of the structure, and facilitate construction. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the specific embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0019] Figure 1 This is a structural schematic diagram of the prefabricated rail transit station component described in this invention.

[0020] Figure 2 This is a partially enlarged schematic diagram of the column end slotting, shear-resistant slotting, and outward-extending stirrups described in this invention; Figure 3 This is a partially enlarged schematic diagram of the precast wall, strip groove, and additional reinforcing bars described in this invention. Detailed Implementation

[0021] The invention is described in more detail below to aid in understanding it.

[0022] like Figures 1 to 3As shown, the prefabricated rail transit station component of the present invention adopts a layout of prefabricated walls on both sides and prefabricated columns in the middle, including a prefabricated slab 1, a prefabricated wall 7, a prefabricated column 8, and a prefabricated beam 9; the prefabricated slab 1 is installed on the prefabricated wall 7 and the prefabricated column 8; a column end slot 2 is provided at the junction of the prefabricated slab 1 and the prefabricated column 8, and at least a portion of the top of the prefabricated column 8 is inserted into the column end slot 2; a support seat 11 is provided on the side of the prefabricated column 8, and the prefabricated beam 9 is fixedly supported on the support seat 11 of two adjacent prefabricated columns 8; an outwardly extending stirrup 10 is provided on the top of the prefabricated beam 9, and a shear-resistant slot 3 is provided on the prefabricated slab 1, the position of the shear-resistant slot 3 corresponding to the position of the outwardly extending stirrup 10 on the top of the prefabricated beam 9, and the outwardly extending stirrup 10 on the top of the prefabricated beam 9 extends out from the shear-resistant slot 3; the lower surface of the prefabricated slab 1 abuts against the upper surface of the prefabricated beam 9.

[0023] Preferably, the precast walls 7 are symmetrically arranged on both sides of the precast slab 1, and the precast columns 8 are vertically arranged between two adjacent precast walls 7.

[0024] Preferably, the precast wall 7 is provided with a corbel 13 on its side, and the end of the precast slab 1 overlaps the corbel 13.

[0025] Preferably, shear stirrups 15 are evenly distributed on the upper surface of the corbel 13.

[0026] Preferably, the top surface height of the corbel 13 is the same as the top surface height of the precast beam 9.

[0027] Preferably, the end of the precast slab 1 is provided with a slab end support, and the precast slab 1 is connected to the corbel 13 through the slab end support; the slab end support is provided with a strip-shaped slot 4, and an additional steel bar 5 is placed inside the strip-shaped slot 4.

[0028] Preferably, an upper concrete post-cast layer 6 is provided on the upper surface of the precast slab 1. The precast slab 1 and the upper concrete post-cast layer 6 together constitute the floor layer 12.

[0029] Preferably, the shear groove 3 is a rectangular groove, the length of the shear groove 3 is greater than the length of the concentrated arrangement area of ​​the outward stirrups 10, the width of the shear groove 3 is greater than the width of the outward stirrups 10 but less than the width of the precast beam 9, and at least 50mm of overlap length is reserved on each side (that is, the distance between the edge of the shear groove 3 and the edge of the precast beam 9 is at least 50mm).

[0030] Preferably, the precast slab 1, precast wall 7, precast column 8 and precast beam 9 are all made of reinforced concrete and are transported to the construction site for assembly after being poured and cured in the factory.

[0031] Preferably, the upper surface of the precast slab 1 is roughened.

[0032] This application also provides a method for on-site assembly of prefabricated rail transit station components, including the following steps: S1. The precast slabs 1, precast walls 7, precast columns 8 and precast beams 9, which have been poured and cured in the factory, are transported to the construction site. The precast walls 7 and precast columns 8 are buried in the predetermined positions according to the construction standards. The precast walls 7 are symmetrically arranged on both sides, and the precast columns 8 are vertically arranged between two adjacent precast walls 7. S2. The end support of the precast slab 1 is attached to the corbel 13 on the side of the precast wall 7; the precast beam 9 is fixedly supported on the support seats 11 of two adjacent precast columns 8; the lower surface of the precast slab 1 abuts against the upper surface of the precast beam 9; the outwardly extending stirrup 10 at the top of the precast beam 9 extends from the shear groove 3 on the precast slab 1; the top of the precast column 8 is inserted into the column end groove 2 on the precast slab 1. S3. Place additional reinforcing bars 5 inside the strip-shaped slots 4 reserved on the end supports of the precast slab 1; S4. Pour the upper concrete post-cast layer 6 on the upper surface of the precast slab 1 so that the precast slab 1 and the upper concrete post-cast layer 6 together form the floor layer 12.

[0033] The prefabricated rail transit station components described in this invention enable the industrialization, standardization, and greening of large-span station construction, which is of great significance for improving construction efficiency, ensuring project quality, and reducing environmental impact.

[0034] The preferred embodiments of the present invention have been described above, but are not intended to limit the invention. Those skilled in the art can make modifications and variations to the embodiments disclosed herein without departing from the scope and spirit of the invention.

Claims

1. A prefabricated rail transit station component, characterized in that, The prefabricated rail transit station components adopt a layout of prefabricated walls on both sides and prefabricated columns in the middle, including prefabricated slabs, prefabricated walls, prefabricated columns, and prefabricated beams. The prefabricated slabs are installed on the prefabricated walls and prefabricated columns. A column end slot is provided at the junction of the prefabricated slab and the prefabricated column, and at least a portion of the top of the prefabricated column is inserted into the column end slot. A support seat is provided on the side of the prefabricated column, and the prefabricated beam is fixedly supported on the support seats of two adjacent prefabricated columns. An outward-extending stirrup is provided at the top of the prefabricated beam, and a shear-resistant groove is provided on the prefabricated slab. The position of the shear-resistant groove corresponds to the position of the outward-extending stirrup at the top of the prefabricated beam, and the outward-extending stirrup at the top of the prefabricated beam extends out from the shear-resistant groove. The lower surface of the prefabricated slab abuts against the upper surface of the prefabricated beam.

2. The prefabricated rail transit station component according to claim 1, characterized in that, The precast walls are symmetrically arranged on both sides of the precast slab, and the precast columns are vertically arranged between two adjacent precast walls.

3. The prefabricated rail transit station component according to claim 1, characterized in that, The precast wall has corbels on its sides, and the ends of the precast slabs overlap the corbels.

4. The prefabricated rail transit station component according to claim 3, characterized in that, Shear reinforcement bars are evenly distributed on the upper surface of the corbel.

5. The prefabricated rail transit station component according to claim 3, characterized in that, The top surface height of the corbel is the same as the top surface height of the precast beam.

6. The prefabricated rail transit station component according to claim 1, characterized in that, The precast slab is provided with a slab end support at its end, and the precast slab is attached to the corbel through the slab end support; the slab end support has a pre-reserved strip-shaped slot, and additional reinforcing bars are placed inside the strip-shaped slot.

7. The prefabricated rail transit station component according to claim 1, characterized in that, An upper concrete post-cast layer is provided on the upper surface of the precast slab.

8. The prefabricated rail transit station component according to claim 1, characterized in that, The shear groove is a rectangular groove. The length of the shear groove is greater than the length of the concentrated arrangement area of ​​the outward-extending stirrups. The width of the shear groove is greater than the width of the outward-extending stirrups but less than the width of the precast beam. The distance between the edge of the shear groove and the edge of the precast beam is at least 50mm.

9. The prefabricated rail transit station component according to claim 1, characterized in that, The precast slabs, precast walls, precast columns, and precast beams are all made of reinforced concrete and are transported to the construction site for assembly after being poured and cured in the factory.

10. The prefabricated rail transit station component according to claim 1, characterized in that, The upper surface of the precast slab is roughened.

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