CN114908998A

CN114908998A - Platform and canopy integrated structure and installation method

Info

Publication number: CN114908998A
Application number: CN202210437158.XA
Authority: CN
Inventors: 蔺鹏臻; 马殷军; 侯帅龙; 王亚朋; 张亮; 刘应龙
Original assignee: Lanzhou Engineering Construction Headquarters Of China Railway Lanzhou Bureau Group Co ltd; Lanzhou Jiaotong University
Current assignee: Lanzhou Engineering Construction Headquarters Of China Railway Lanzhou Bureau Group Co ltd; Lanzhou Jiaotong University
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-16

Abstract

The invention provides a platform canopy integrated structure and an installation method, which comprises a concrete foundation, a cast-in-place canopy column, a prefabricated pi-shaped beam canopy column integrated structure, a cast-in-place canopy column and prefabricated pi-shaped beam canopy column connecting node, a prefabricated canopy beam plate, a prefabricated pi-shaped beam and prefabricated canopy beam plate connecting node, wherein the canopy concrete foundation comprises a bored pile, a platform frame beam, a platform wall, a platform column, a platform surface, a bearing platform and a drainage ditch, and a water supply and drainage pipeline, a reserved pipeline, a power cable pipeline, a communication pipeline, a fire fighting pipeline and other pipelines are arranged in a platform. The assembled platform canopy integrated structure has the advantages of good integrity, strong deformation resistance, convenient assembly construction, convenient later maintenance and replacement, and capability of effectively reducing the platform invasion, loess collapse uneven settlement and other diseases; the pipe gallery system in the platform not only solves the problem of cross congestion of various pipeline pipelines, keeps the integrity and the attractiveness, but also greatly facilitates later-stage maintenance and inspection, reduces maintenance cost and effectively utilizes the internal space of the platform.

Description

Platform and canopy integrated structure and installation method

Technical Field

The invention relates to a platform and canopy integrated structure and an installation method, in particular to an assembly type platform and canopy integrated structure, and belongs to the technical field of concrete structures in structural engineering.

Background

The cast-in-place reinforced concrete structure needs to be constructed on site, the operation environment is poor, the labor and the cost are high, the template period is long, the working procedures are complicated, the influence by seasons and severe weather is large, and the reinforcement and repair are difficult, while the assembly type structure adopts factory semi-automatic production, the main task of the construction site is assembly instead of construction, the influence by objective factors such as weather is small, the quality is controllable, the construction period is shortened, the construction efficiency is high, and the cast-in-place reinforced concrete structure accords with energy conservation, environmental protection and sustainable development.

At present, the railway platform mostly adopts the traditional high earth-filling retaining wall type platform, the earth-filling type platform wall and the canopy structure are mutually independent, and the structure has the following defects: (1) because the platform wall, the platform fill soil, the canopy structure are non-integral structures, the limit problems such as local protrusion of the platform wall cap, protrusion of the wall waist plate expansion die, inclination of the canopy and the like are easily caused under the influences of uneven settlement of a foundation, settlement after backfilling, vibration of operation load, temperature expansion, long-term deformation and the like, and the limit risks are not only caused by driving and the boundary invasion of passengers, but also the use of passengers is influenced. (2) In the collapsible loess area, plain filling is adopted inside the platform wall to fill the platform wall, a concrete cantilever type retaining wall structure is adopted, pseudo-ginseng filling is paved at the bottom of the platform wall, the retaining wall structure is poured in stages, finally plain concrete is filled inside the retaining wall structure, a concrete structure containing a steel bar net structure is paved on the top surface to form a platform surface, the platform surface and the retaining wall structure are not effectively connected with each other and are only in a lap joint structure, when heavy rainfall occurs in the platform line, because the drainage gradient of the surface layer at the lower part of the railway ballast is insufficient or the vehicle load causes change, the soil under the railway ballast can not be completely absorbed in a short time, one part flows towards the drainage ditch and is finally discharged by the drainage ditch, the other part flows towards the platform wall and flows towards the bottom of the platform wall along the edge direction of the platform wall, so that the soil at the bottom is saturated with water and causes the reduction of bearing capacity, and rainwater can flow towards the wall area, and the soil body flows to the bottom of the platform wall along the platform wall surface, so that the holding layer at the bottom of the platform wall is unevenly changed, the platform wall is finally inclined or locally and unevenly settled along the length direction, and the limit of the platform wall is finally invaded. (3) According to the maintenance and repair experience of other operation lines, the phenomenon that the drainage of the ground surface is not smooth and water is accumulated near a platform wall easily to cause the sinking of the platform wall and a platform surface is found, the sedimentation of the platform wall is difficult to treat once the construction of the platform wall is finished, the platform invasion limit is generated once, the large-area replacement of fillers and foundation treatment after the filling of the platform surface needs to be broken, and particularly, the treatment cycle is long after the operation, the cost is high, and the maintenance and repair are difficult.

Disclosure of Invention

For overcoming current platform canopy structure not enough, this paper provides a novel assembled platform canopy integral structure and mounting method, its wholeness is good, anti deformability is strong, the assembly construction is convenient, can be with pipeline escape canal, power cable, plumbing, fire control, communication etc. pipeline as for inside the platform, make things convenient for later stage maintenance to change, can effectively reduce the platform and invade the border, diseases such as loess settlement inhomogeneous.

The technical scheme of the invention is as follows: the utility model provides an assembled platform canopy integral structure, including concrete foundation, cast-in-place canopy post, prefabricated pi-shaped beam canopy post overall structure, cast-in-place canopy post and prefabricated pi-shaped beam canopy post connected node, prefabricated canopy beam slab, prefabricated pi-shaped beam and prefabricated canopy beam slab connected node, canopy concrete foundation includes the drilling bored concrete pile, platform frame roof beam, platform wall, station platform post, station platform face, cushion cap and escape canal, the inside pipe gallery such as water supply and drainage pipe, reserve the pipeline, the power cable pipeline, the communication pipeline, the fire control pipeline that includes of platform.

The upper part of the assembled platform canopy integrated structure is an assembled canopy, the lower part of the assembled platform canopy integrated structure is a frame beam and shear wall structure, four rows of cast-in-situ bored piles are adopted, and the platform wall is a shear wall; the system comprises a platform column, a platform frame beam, a platform slurry sleeve, a cast-in-place canopy column, a drainage ditch, a cast-in-place concrete slab, a platform side beam, a platform filling pile, a platform frame beam, a bearing platform and the platform column, wherein the bottom of the platform column is fixedly connected with the top of the cast-in-place canopy column through the bearing platform, the lower portion of the cast-in-place canopy column is integrally cast with the platform structure, the upper portion of the cast-in-place canopy column is integrally prefabricated with a pi-shaped beam, the ratio of the upper portion of the cast-in-place canopy column to the lower portion of the prefabricated pi-shaped beam is 0.5:4.08, the top of the cast-in-place canopy column and the lower portion of the prefabricated pi-shaped beam are fixedly connected through the slurry sleeve, the canopy slab comprises 2 side rainsheds and 1 middle rainshed, the canopy slab and the side beam is integrally prefabricated and installed in a hoisting mode, the canopy slab is connected between the pi-shaped beam and the platform side beam through the bearing pedestal frame beam, the cast-in-place of the platform frame column, the drainage ditch is arranged on the platform frame column along the platform wall along the direction, and the platform frame beam are filled with the platform frame beam, and the platform frame beam are filled with the platform frame beam, and the platform frame are respectively, and the platform frame are respectively, and the platform frame are respectively, and the.

The reinforcing bar is reserved at the top of the cast-in-place rainshed column, the grouting sleeve is pre-buried at the bottom of the prefabricated rainshed column, and the reserved reinforcing bar stretches into the grouting sleeve and is fixedly connected with the grouting material.

The drainage facility with the integrated structure of the assembled platform and canopy is characterized in that a drainage channel is arranged in a U-shaped groove at the joint of the side plate and the middle canopy plate, a drainage pipeline is arranged in a groove in the surface of a canopy column, the bottom of the drainage pipeline is connected with a drainage pipe, water at the top of the canopy is drained to a drainage ditch through a drainage hole and the drainage pipe, wherein the platform wall is provided with drainage holes with the diameter of 10cm and the interval of 1m, and railway line rainwater can be effectively drained to the drainage ditch through the drainage holes.

Assembled integration platform canopy pipe gallery space optimization, the platform inner space divides into a plurality of pipe gallery spaces, to the pipeline such as water supply and drainage, fire control, power cable, communication of serving as reasons outside-in proper order, sets up lighting system in the passageway, has not only solved all kinds of pipeline cross-traffic jams problem, has kept complete and pleasing to the eye, greatly makes things convenient for the later stage maintenance inspection moreover, reduces maintenance cost, has effectively utilized the platform inner space.

A mounting method of an integrated structure of a rain shed of an assembled platform comprises the following steps.

Cast-in-place is adopted for the cast-in-place bored piles, the platform frame beam, the bearing platform, the platform wall, the platform column, the platform surface and the 4.08 m-high canopy column at the lower part, and before the beam is installed in advance, the cast-in-place column top concrete is roughened so as to protect the edge and corner angles of the column from being damaged and not roughened within the range of 20mm from the column edge. Whether the column top is in the range and adjacent column tops are horizontal or not is measured by using an instrument, and the uneven parts are polished by using an angle grinder, so that the column tops are guaranteed to be flat. The position and the perpendicularity of the steel bar are adjusted, the position of the pre-embedded steel bar is correct after adjustment, the upper steel bar is vertically upward, and the positioning steel plate can be smoothly sleeved and detached.

The method comprises the steps of prefabricating a 0.5m high-altitude canopy column and a pi-shaped beam integrally, arranging 2 lifting points above the canopy column, transporting the pi-shaped beam to the site, allocating a truck crane (200t), buckling a lock catch on a lifting ring, screwing a bolt to start lifting, lifting to the position above the cast-in-place canopy column, adjusting the perpendicularity and shear key positions of reserved steel bars and a sleeve, cleaning sundries on the surface of a reserved part, falling the beam, and supporting and adjusting the height by using cushion blocks until all the pi-shaped beam positions are at the same height.

And (3) plugging the joint with a seat slurry plugging die, filling and smearing seat slurry for continuous plugging, taking out after smearing, grouting after the seat slurry strength meets the requirement, plugging grouting holes after filling, and performing subsequent construction when the grouting strength reaches over 75 percent.

4 rings are symmetrically arranged at a distance of 1.5m from the end part of the prefabricated canopy, the canopy is transported to the site, whether the height of the joint of the floor slab and the adjacent pi-shaped beam is consistent or not is measured before installation, an angle grinder is used for polishing the higher part, and the height of the lower part is adjusted by using a cushion block. And buckling the lock catch on a lifting ring, screwing a bolt, starting lifting, lifting to the position above the pi-shaped beam, adjusting the verticality, cleaning impurities on the surface, and falling the beam. And (4) hoisting the precast slab until all the supports are installed, and loosening the hoisting point after the precast slab is inspected to be qualified.

And (3) symmetrically arranging 2 lifting rings at the positions, 1.5m away from the end part, of two sides of the prefabricated edge canopy respectively, transporting the edge canopy to the site, buckling the lock catch on the lifting rings, screwing down the bolt, starting to lift, lifting to the position above the pi-shaped beam, adjusting the verticality, and cleaning surface impurities to drop the beam. The precast slabs and the precast beams are connected through the anti-falling beam device, when the concrete members are precast, pre-embedded bolts are pre-embedded in advance, and the anti-falling beam device is installed after the installation of the precast slabs is completed.

The limit, well canopy board parting joint department sets up certain slope U type groove, do waterproofly with flexible waterproof material SBC120 polyethylene polypropylene fibre composite waterproof coiled material, the rainwater flows to canopy post position along U type groove back along canopy post groove drainage pipe flow to escape canal, 30mm installation width is reserved with pi roof beam handing-over position to the board, respectively do 100X 150 concrete manger plate platform in both sides, the manger plate platform is done in step when prefabricated, then carry out the waterproofing membrane construction above the manger plate platform, the top adds and is protected by 2mm thick aluminum plate apron.

The invention has the following beneficial effects:

the integral structure of the Pi-shaped beam-canopy column and the canopy beam plate are prefabricated in a factory, the quality is controllable, the construction period is shortened, the construction efficiency is high, and the energy conservation, environmental protection and sustainable development are met.

The cast-in-place canopy column and the prefabricated pi-shaped beam canopy column are connected and fixed through the grouting sleeve, and the anti-seismic performance of the cast-in-place canopy column is equal to that of cast-in-place.

This be integral structure at platform canopy integral structure, upper portion is assembled canopy, and the lower part adopts four rows of bored concrete piles + frame roof beam, and the platform wall is the shear force wall, and this design can make things convenient for the later stage maintenance to change with pipeline such as circuit plumbing, fire control, power cable, communication as for inside the platform, effectively reduces the platform and invades the boundary disease.

This structure drainage facility sets up drainage channel through limit, well canopy board seam crossing U type groove, installs the outlet conduit in canopy post surface recess, outlet conduit bottom run-on water pipe, and canopy top rivers are arranged to the escape canal through outlet conduit and drain pipe, and is further the platform wall is equipped with the wash port of diameter 10cm, interval 1m, can effectively arrange the railway lines rainwater to the escape canal through the wash port, effectively reduces diseases such as uneven settlement of loess collapsibility.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the embodiments of the present invention are further described in detail below with reference to the embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

FIG. 1 is a cross-sectional side elevational view of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a side elevational view of the side and center sill of the present invention.

Fig. 4 is a pictorial view of a beam to column connection of the present invention.

Fig. 5 is a view b-b of fig. 3.

Fig. 6 is a schematic view of the top and bottom of the grouting sleeve of the present invention.

Fig. 7 is a bottom sectional view of the grout sleeve of the present invention.

Fig. 8 is a cross-sectional view of the in-platform utility tunnel structure of the present invention.

Fig. 9 is a cross-sectional view of the drop prevention beam of the present invention.

In the figure: 1. the prefabricated rain shed comprises cast-in-place piles, 2 platform frame beams, 3 platform walls, 4 platform columns, 5 bearing platforms, 6 platform surfaces, 7 cast-in-place rain shed columns, 8 prefabricated rain shed columns, 9 prefabricated pi-shaped beams, 10 drainage ditches, 11 drainage holes, 12 drainage pipes, 13 middle rain shed plates, 14 side rain shed plates, 15 grouting sleeves, 16 shearing-resistant pieces, 17 drainage pipes, 18 reserved pipes, 19 power cable pipes, 20 communication pipes, 21 fire-fighting pipes, 22 rain shed plate beams, 23 supports, 24 reserved reinforcing steel bars and 25 reserved bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, the terms "comprises/comprising," "consisting of … …," or any other variation, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.

In the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the present invention, but do not indicate or imply that the device, component or structure referred to must have a specific orientation, be constructed in a specific orientation or be operated, and should not be construed as limiting the present invention.

As shown in fig. 1-4, the present embodiment provides an integrated structure of an assembly-type platform canopy, which includes bored piles 1, platform frame beams 2, platform walls 3, platform columns 4, bearing platforms 5, platform surfaces 6, cast-in-place canopy columns 7, prefabricated canopy columns 8, prefabricated pi-shaped beams 9, drainage ditches 10, drainage holes 11, drainage pipelines 12, middle canopy plates 13, side canopy plates 14, grouting sleeves 15, and shear resistant members 16. The invention provides an integrated structure of a prefabricated platform canopy, which is characterized in that cast-in-place and prefabricated components are reasonably divided, the quality is controlled, the construction period is shortened, and the construction is efficient; and a drainage system is planned, so that the platform inclination boundary and the loess collapsibility risk are effectively reduced.

Further, the upper part of the assembled platform canopy integrated structure is an assembled canopy, main components comprise a cast-in-place canopy column 7, a prefabricated canopy column pi-shaped beam integrated structure 8.9 and prefabricated canopy beam plates 13.14, the lower part of the assembled platform canopy integrated structure adopts a frame beam 2+ shear wall 3 structure, four rows of cast-in-place piles 1 are adopted, a platform wall 3 is a shear wall, the bottom of the platform column 4 is fixedly connected with the top of the cast-in-place canopy column 1 through a bearing platform 5, the platform frame beam 2 is fixedly connected with the bearing platform 5 and the platform column 4, the cast-in-place canopy column 7 adopts a variable cross section, the lower part of the cast-in-place canopy column and the platform structure are integrally cast in place, the upper canopy column 8 and the pi-shaped beam 9 are integrally prefabricated, the ratio of the upper canopy column to the lower canopy column is 0.5:4.08, the top of the cast-in-place canopy column 7 and the prefabricated pi-shaped beam canopy column 8.9 are fixedly connected by a mortar sleeve 15, the canopy plate comprises 1

middle canopy

13 and 2 side canopy plates 14, the

rain shed plates

13, 14 and the edge beams 22 are integrally prefabricated and installed in a hoisting mode, the rain shed edge beams 22 and the pi-shaped beams are connected through the support 23, the rain shed roof plates are made of cast-in-place concrete plates, the drainage ditch 10 is arranged on the platform wall 3 along the rail direction, and the joints of the platform beam plates are broken according to corresponding sizes and filled with corresponding fillers.

Reinforcing bar 24 is reserved at the top of cast-in-place canopy post 7, prefabricated canopy post 8's the pre-buried grout sleeve 15 in bottom, reserved reinforcing bar 24 stretches into in the grout sleeve 15 and between the two connect fixedly through the grout material, its anti-seismic performance equals cast-in-place.

The drainage facility is characterized in that a drainage channel is arranged in a U-shaped groove at the joint of the side rain shed plate 13.14 and the middle rain shed plate, a drain pipe 12 is arranged in a groove on the surface of a rain shed column, the bottom of the drain pipe is connected with a drainage pipe 12, water at the top of the rain shed is drained to a drainage ditch 10 through the drainage pipe, and further the platform wall 3 is provided with drainage holes 11 with the diameter of 10cm and the interval of 1m, so that the rainwater on the railway line can be effectively drained to the drainage ditch 10 through the drainage holes 11, and the problem that the platform wall is inclined under long-term rainwater washing is effectively solved.

The pipe gallery space is optimized, and the platform inner space divides into a plurality of pipe gallery spaces, including water supply and drainage pipe 17, reservation pipeline 18, power cable pipeline 19, communication pipeline 20 and fire control pipeline 21 etc. set up lighting system in the passageway, not only solved all kinds of pipeline cross jam problem, kept complete and pleasing to the eye, greatly made things convenient for the later stage maintenance inspection moreover, reduced the maintenance cost, effectively utilized platform inner space.

A mounting method of an integrated structure of a rain shed of an assembled platform comprises the following steps:

the cast-in-place method comprises the steps that cast-in-place is adopted for the cast-in-place pile 1, the platform frame beam 2, the platform wall 3, the platform column 4, the bearing platform 5, the platform surface 6 and the lower 4.08m high canopy column 7, and before the beam is installed in advance, the concrete on the top of the cast-in-place column 7 is subjected to scabbling treatment so as to protect the edges and corners of the column from being damaged and avoid scabbling treatment within a range of 20mm away from the column edge. Whether the column top is in the range and adjacent column tops are horizontal or not is measured by using an instrument, and the uneven parts are polished by using an angle grinder, so that the column tops are guaranteed to be flat. The position and the perpendicularity of the steel bar are adjusted, the correct position of the embedded steel bar 24 after adjustment is ensured, the upper steel bar is vertically upward, and the positioning steel plate can be smoothly sleeved and detached.

The upper 0.5m high rainshed column 8 and the pi-shaped beam 9 are integrally prefabricated, 2 lifting points are arranged on the pi-shaped beam 9 right above the rainshed column 8, the pi-shaped beam is transported to the site, an automobile crane (200t) is allocated, a lock catch is buckled on a lifting ring, a bolt is screwed down, the lock catch is lifted to the position above the cast-in-place rainshed column 7, the perpendicularity of the reserved steel bar 24 and the sleeve 15 and the position of the shearing resistant piece 16 are adjusted, sundries on the surface of the reserved piece are cleaned, the reserved piece falls off the beam, and the height is adjusted by supporting through cushion blocks until all the pi-shaped beam positions are at the same height.

4 rings are symmetrically arranged at the distance of 1.5m from the end part of the prefabricated middle canopy 13, the canopy is transported to the site, whether the height of the joint of the floor slab and the adjacent pi-shaped beam is consistent or not is measured before installation, an angle grinder is used for polishing the higher part, and the height of the lower part is adjusted by using a cushion block. And buckling the lock catch on a lifting ring to tighten the bolt, starting lifting, lifting to the position above the pi-shaped beam, adjusting the verticality, cleaning impurities on the surface, and falling the beam, wherein before the prefabricated plate 13.14 is installed, a support frame body is erected as a temporary fixing measure and is also used as an operation surface when the prefabricated plate is lifted in place. And (4) hoisting the precast slab until all the supports are installed, and loosening the hoisting point after the precast slab is inspected to be qualified.

2 lifting rings are symmetrically arranged at the two sides of the prefabricated edge canopy 14 at a distance of 1.5m from the end part respectively, the prefabricated edge canopy is transported to the site, the lock catches are buckled on the lifting rings, bolts are screwed down, the prefabricated edge canopy starts to be lifted, the prefabricated edge canopy is lifted to the upper part of the pi-shaped beam, the verticality is adjusted, and impurities on the surface are cleaned to fall the beam. The precast slabs 13.14 are connected with the precast beam 9 through the anti-falling beam device, when the concrete member is precast, the embedded bolts 25 are embedded in advance, and the anti-falling beam device is installed after the precast slabs are installed.

The side, well canopy board 13.14 divides seam department sets up certain slope U type groove, do waterproofly with flexible waterproof material SBC120 polyethylene polypropylene fibre composite waterproof coiled material, the rainwater flows to canopy post position along U type groove back and flows to escape canal 10 along canopy post groove department drain pipe 12, 30mm installation width is reserved to board and pi roof beam handing-over position, respectively do 100 x 150 concrete manger plate platform in both sides, the manger plate platform is done in step when prefabricating, then carry out the waterproofing membrane construction on the manger plate platform, the top is added and is protected by 2mm thick aluminum plate cover plate.

The foregoing description of the disclosed examples is provided to enable any person skilled in the art to make or use the present invention and is intended to enable any person skilled in the art to make or use the present invention without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. The utility model provides an assembled platform canopy integral structure which characterized in that: the device comprises cast-in-situ bored piles, platform frame beams, platform walls, platform columns, bearing platforms, platform surfaces, cast-in-situ rain shed columns, prefabricated pi-shaped beams, drainage ditches, drainage holes, drainage pipelines, middle rain shed plates, side rain shed plates, grouting sleeves, shearing-resistant pieces, water supply and drainage pipelines, reserved pipelines, power cable pipelines, communication pipelines, fire fighting pipelines, rain shed plate side beams, beam column connecting supports, reserved reinforcing steel bars, anti-falling beams and other components.

2. The fabricated platform canopy integrated structure of claim 1, wherein: the upper part is an assembled canopy, the lower part is a frame beam and shear wall structure, four rows of cast-in-situ bored piles are adopted, and the platform wall is a shear wall; the system comprises a platform column, a platform frame beam, a platform slurry sleeve, a cast-in-place canopy column, a drainage ditch, a platform side beam, a platform filling pile, a platform frame beam, a bearing platform and the platform column, wherein the bottom of the platform column is fixedly connected with the top of the cast-in-place canopy column through the bearing platform, the cast-in-place canopy column adopts a variable cross section, the lower part of the cast-in-place canopy column and the platform structure are integrally cast in place, the upper canopy column and the pi-shaped beam are integrally prefabricated, the ratio of the upper canopy column to the lower canopy column is 0.5:4.08, the top of the cast-in-place canopy column and the prefabricated lower canopy column under the pi-shaped beam are fixedly connected through the slurry sleeve, the canopy plate comprises 1 middle canopy and 2 side canopy, the canopy plate and the side beam are integrally prefabricated, hoisted and installed, the side beam and the canopy plate is connected through a support, the cast-in-place concrete slab, the drainage ditch is arranged on the platform side beam wall along the rail direction, the platform frame column, and the platform frame beam is broken according to the corresponding size, and filled with corresponding filler.

3. The fabricated platform canopy integrated structure of claim 2, wherein: the reinforcing bar is reserved at the top of cast-in-place canopy post, the pre-buried grout sleeve in bottom of prefabricated canopy post, the reserved reinforcing bar stretches into in the grout sleeve and between the two connect fixedly through the grout material.

4. The fabricated platform canopy integrated structure of claim 2, wherein: a drainage channel is arranged in a U-shaped groove at the joint of the side and the middle canopy plate, a drain pipeline is arranged in a groove on the surface of the canopy column, the bottom of the drain pipeline is connected with a drain pipe, water at the top of the canopy is drained to a drainage ditch through the drain pipe and the drain pipe, and further, the platform wall is provided with drain holes with the diameter of 10cm and the interval of 1m, so that rainwater on the railway line can be effectively drained to the drainage ditch through the drain holes.

5. The platform galley system of claim 1, in which: the space divides into a plurality of piping lane spaces in the platform, to the piping lane such as line of departure outside-in includes water supply and drainage pipe in proper order, reserves pipeline, power cable pipeline, communication pipeline, fire control pipeline, sets up lighting system in the passageway, has not only solved all kinds of pipeline cross congestion problems, has kept complete and pleasing to the eye, greatly makes things convenient for the later stage maintenance inspection moreover, reduces the maintenance cost, has effectively utilized the platform inner space.

6. A method for installing an integrated structure of a prefabricated platform canopy according to claim 1, wherein the method comprises the following steps: the installation method comprises the following steps:

(1) cast-in-place is adopted for the cast-in-place bored piles, the platform frame beam, the bearing platform, the platform wall, the platform column, the platform surface and the 4.08 m-high canopy column at the lower part, and before the beam is installed in advance, the cast-in-place column top concrete is roughened so as to protect the edge and corner angles of the column from being damaged and not roughened within the range of 20mm from the column edge.

7. Whether the column top is in the range and adjacent column tops are horizontal or not is measured by using an instrument, and the uneven parts are polished by using an angle grinder, so that the column tops are guaranteed to be flat.

8. The position and the perpendicularity of the steel bar are adjusted, the position of the pre-embedded steel bar is correct after adjustment, the upper steel bar is vertically upward, and the positioning steel plate can be smoothly sleeved and detached.

9.(2) integrally prefabricating a 0.5m high rainshed column and a pi-shaped beam on the upper part, totally arranging 2 lifting points which are respectively positioned right above the rainshed column, transporting the pi-shaped beam to the site, allocating an automobile crane (200t), buckling a lock catch on a lifting ring, screwing a bolt, starting to lift, lifting to the position above the cast-in-situ rainshed column, adjusting the verticality and the shear key position of the reserved steel bar and the sleeve, cleaning sundries on the surface of the reserved part, falling the beam, and supporting and adjusting the height by using a cushion block until all the pi-shaped beam positions are at the same height;

(3) plugging a mould into the joint by using seat slurry, filling and smearing the seat slurry to perform continuous plugging, drawing out after smearing, grouting after the seat slurry strength meets the requirement, plugging a grouting hole after filling, performing subsequent construction when the grouting strength reaches over 75 percent, and performing removal of temporary fixing measures after the grouting slurry compressive strength can ensure that the structure can achieve subsequent construction bearing;

(4) 4 rings are symmetrically arranged at a distance of 1.5m from the end part of the prefabricated canopy, the canopy is transported to the site, whether the height of the joint of the floor slab and the adjacent pi-shaped beam is consistent or not is measured before installation, an angle grinder is used for polishing the higher part, and the height of the lower part is adjusted by using a cushion block.

10. And buckling the lock catch on a lifting ring to tighten the bolt, starting lifting, lifting to the position above the pi-shaped beam, adjusting the verticality, cleaning impurities on the surface, and falling the beam.

11. Hoisting the precast slab, namely, after all the supports are installed, and after the precast slab is inspected to be qualified, releasing the hoisting point;

(5) and (3) symmetrically arranging 2 lifting rings at the two sides of the prefabricated edge canopy 1.5m away from the end part respectively, conveying the edge canopy to the site, buckling the lock catch on the lifting rings, screwing the bolt, starting hoisting, lifting to the position above the pi-shaped beam, adjusting the verticality, and cleaning impurities on the surface to drop the beam.

12. The precast slabs and the precast beams are connected through a beam falling prevention device, pre-buried bolts are pre-buried in advance when the concrete members are precast, and the beam falling prevention device is installed after the precast slabs are installed;

(6) the limit, well canopy board parting joint department sets up certain slope U type groove, do waterproofly with flexible waterproof material SBC120 polyethylene polypropylene fibre composite waterproof coiled material, the rainwater flows to canopy post position along U type groove back along canopy post groove drainage pipe flow to escape canal, 30mm installation width is reserved with pi roof beam handing-over position to the board, respectively do 100X 150 concrete manger plate platform in both sides, the manger plate platform is done in step when prefabricated, then carry out the waterproofing membrane construction above the manger plate platform, the top adds and is protected by 2mm thick aluminum plate apron.