CN117188810A - Old building roof reconstruction method - Google Patents

Abstract

The invention discloses a method for reforming an old building roof, which comprises the following steps: and dismantling the original parapet of the old building to the roofing gird or the roofing frame beam, finishing the reinforcement of the roofing gird/roofing frame beam, pouring a support foundation on the bearing node of the roofing gird/roofing frame beam, installing the lower part of the support, installing the roofing beam section with the upper part of the support, finishing the beam section combination, covering the precast slab and finishing the parapet railing installation. The invention adopts an updating and reforming method for capping the building roof in an assembled mode to ensure that the households of the top building are not influenced, and can be added with a plurality of functions, the reforming does not destroy the heat-insulating and waterproof functions of the roof of the original building, a cavity is formed between the new roof and the old roof to form air convection, the functions of sunshade ventilation, sound insulation and waterproof are achieved, and the living quality of the households of the top building is improved. And the sectional size of the component is reduced to the maximum extent by adopting an assembly type prestress technology, and the load is reduced so as to reduce the influence on the original structure.

Description

Old building roof reconstruction method

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a method for reforming an old building roof.

Background

The outer wall of the old building has the problems of peeling, cracking, water seepage, heat preservation performance degradation and the like, thus not only affecting the urban appearance and living environment of people, but also not meeting the energy-saving requirements of green low carbon. Therefore, the old building roof and facade are updated and reformed, and the market space is wide. Particularly, for the improvement of roofs, the urgent need is that the ageing of the energy-saving and waterproof functions of the roofs reduce the living experience of the owners of the top building, and more importantly, the water accumulation and snow accumulation of the roofs are caused once the storm. The load of ponding and snow exceeds roof boarding load requirement and can also damage the structure, and safety accidents can be caused sometimes.

The technology for updating the outer vertical surface of the old building mainly comprises the research and development and construction technology of novel heat preservation and decoration materials, the technology for dismantling the original outer vertical surface of the building, the construction operation platform technology and the construction waste vertical transportation technology.

Building outer elevation heat preservation and decoration system state of the art

(1) Building outer elevation heat preservation system technology

In the old building outer elevation transformation process, the transformation of an outer wall heat preservation system is involved, and measures of the transformation are mainly divided into two types: the first is to increase the heat-insulating layer for the outer elevation without the outer wall heat insulation; the second is to replace the heat-insulating material with more advanced heat-insulating material aiming at the poor heat-insulating effect or the degradation of heat-insulating performance of the outer wall, which cannot meet the energy-saving and environment-friendly requirements. The existing building outer elevation heat insulation materials mainly comprise the following components:

1) Inorganic material external wall heat insulation

Inorganic material external wall heat insulation ^[6-8] Mainly comprises glass wool, vacuum insulation panels, inorganic thermal insulation mortar and the like, but is gradually forbidden or limited along with the defects of the inorganic material thermal insulation technology. In addition, inorganic thermal insulation mortar has incombustible characteristics due to large thermal insulation conductivity, and is widely applied to southern areas, but some areas require buildings to prohibit or limit the use of thermal insulation mortar due to the problems of easy falling, cracking, water seepage, hollowing and the like of the thermal insulation mortar.

2) Rock wool board external wall heat preservation

The main component of the rock wool board is inorganic matter, and the fire-proof effect is good, but the heat-insulating rock wool consumes a large amount of ecological energy in the production process. With the improvement of production equipment and the update of technology, the environmental protection problem of rock wool production is solved, but the price becomes high. Under the action of heat expansion and cold contraction, the rock wool board is easy to generate the defects of fluffiness, bulge and the like.

3) Organic heat-insulating plate

Common organic heat-insulating plate ^[6] The heat-insulating board has good heat-insulating performance, is widely applied to an external wall heat-insulating system, but has poor flame-retardant effect, and can be used as a 'helper' when a fire disaster occurs in a building, which is a difficult industrial problem.

4) Cement-based foam insulation board

The cement-based foam insulation board has the advantages of good heat insulation, strong compression resistance, high temperature resistance, fire resistance and the like, but has the defects of higher heat conductivity coefficient and the like.

5) Thermal insulation decorative board (Integrated board)

The heat-insulating and decorating integrated plate has the advantages of heat insulation, consumption reduction, energy saving, light weight, high strength and the like, but has higher production cost, uneven product quality level and high construction technical requirements.

(2) Building outer elevation decoration system technology

Along with the improvement of aesthetic level of houses, the common plain outer wall cannot meet the pursuit of people on beauty, and the decoration of the outer facade of the houses can effectively improve artistic sense and architectural sense. Therefore, a series of industry standards, such as residential building standards, quality acceptance regulations for building decoration engineering and the like, are set out for the decoration engineering, so that the construction method of the decoration engineering is greatly standardized, and a foundation is laid for continuous good development of the industry. To date, common building facade decorative materials include:

1) Decorative paint

In general, the decorative paint is common paint and its derivative, such as stone paint, stone-like paint, emulsion paint, etc. The decorative paint has the advantages of low cost, high construction efficiency, and the like, but has the defects of easy fading, crack, peeling, poor stain resistance, difficult cleaning, and the like, and is mainly used for houses, guarantee houses, placement houses, and the like with long years ^[22] 。

2) Decorative panel

The veneer is a kind of board used for surface decoration, and the common veneer mainly comprises an aluminum plastic board, a wood-like tile board, a tile-like board and the like ^[23] . The veneer has the advantages of light weight, fastness and the like, but has the defects of weak impact resistance, easy falling off and the like.

3) Facing brick

The building facade decorative face brick mainly comprises ceramic tiles, tao Tuzhuan, glazed tiles, whole bricks, mosaic bricks, vitrified tiles and the like. The facing brick has the advantages of firmness, durability, attractive appearance, strong texture and the like, but has the defects of looseness, falling off, high later maintenance cost and the like, and is widely used for teaching buildings, self-building houses and the like.

4) Stone material

The building outer elevation decorative stone material mainly comprises marble, granite, sandstone, glass color stone, water brush stone, dry sticky stone and the like. The decorative stone has the advantages of high-end atmosphere, good durability and the like, but has the defects of high manufacturing cost, easy falling off and the like.

5) Glass curtain wall

The glass curtain wall is a new wall body in the current generation, which organically unifies factors such as building aesthetics, building functions, building energy conservation, building structures and the like. The glass curtain wall has the advantages of high-end atmosphere, large lighting surface and the like when being used as outer facade decoration; but has the defects of high manufacturing cost, high later maintenance cost and the like, and is mainly used for writing buildings, high-end markets, luxury and the like.

In summary, along with the rise of economic level, building energy saving technology is emerging, and building facade heat preservation and decoration system is also updated all the time, and old building facade heat preservation and decoration system can not satisfy people's demand to current living quality yet, and influence the progress of urban high quality development. In general, the facade of old buildings has two main features: the first type is that no heat preservation layer is arranged, or the effect of a heat preservation system is poor; the second type is that the outer facade (heat preservation layer and decorative layer) of the building ages with time, and the corresponding functions are reduced. The building with the first kind of characteristics mainly takes the eight nineties masonry structure, and the effect of the building without a heat preservation layer or the heat preservation layer is poor due to the limitation of economic level, engineering technology, energy conservation and environmental protection consciousness and other factors. The building with the second kind of characteristics has the outer facade mainly losing functions along with the time, and the aspect of a heat preservation system is mainly reflected in: 1) Cracking, hollowing and falling off; 2) Heat preservation is not flame retardant; 3) Flame retardant but cannot meet the heat preservation requirement of energy-saving buildings. In the aspect of a decoration system, the method is mainly characterized in that: peeling and falling off of the facing; water seepage corrosion; the artificial extension balcony, the erection of the canopy and the like affect the beautiful appearance. Therefore, the novel heat-insulating and decorative material and the novel process thereof have good economic and social benefits for updating the outer facade of the old building.

Building facade construction platform state of the art

In the update of the outer facade of the old building, more adopted traditional construction platforms such as a lower foot hand rest, a high-altitude platform car, a hanging basket and the like can be divided into the following two conditions due to the difference of building heights:

(1) The lower-rise building adopts a lower-foot hand frame construction platform and a high-altitude platform truck. In order to ensure good stability of the construction platform, an ultrahigh socket type disc buckle scaffold can be adopted, and the scaffold can be more easily transferred up and down and erected. The erection of the floor scaffold can influence a pedestrian passageway, and is not beneficial to the normal operation of a mall; high-altitude platform trucks are often limited in use due to the influence of the surrounding environment of the site and building.

(2) The high-rise building adopts a construction platform in the form of a hanging basket. Although the hanging basket construction platform can avoid occupying manway and other problems, the arrangement of hanging baskets is easily influenced by equipment of the existing building and accessories thereof, and the conditions of slow construction, easy occurrence of high-altitude falling objects and the like exist.

The technical research on construction platforms for building facade transformation is less, so that the existing construction platforms are necessary to be improved, and powerful guarantee is provided for high-efficiency and high-quality implementation of old building facade updating.

Although the old building has longer building life, the living property of the old building is still greatly influenced by the transformation process, so that the discontent of citizens is caused, the traveling and living quality of the citizens are affected as little as possible, and the problem that the old building needs to be maintained for a plurality of times for a long time can be solved once and forever.

For the old building roof leakage water is a common phenomenon, the water leakage is influenced by various factors, the reasons are very numerous, and the once and once lasting leakage stopping is difficult to ensure. However, for a residence, the roof is a public system, the building is not one, the leakage conditions of each building in the top are different, the repairing and reconstruction problems are very large, the conventional leakage repairing often blocks one leakage point to cause other leakage points, the leakage blocking of the roof of the user A causes the leakage of the adjacent user B and user C, and thus the contradiction between neighbors or between owners and property is caused. In order to avoid the contradiction of great difficulty in coordination and the uncertainty of water leakage points, a capping and reforming system which is not attached to a roof is needed to be researched, the structure and the functional layer of the original roof are not disturbed, and only the method for dismantling the original parapet wall and reinforcing the structural ring beam of the roof is needed to be researched.

Disclosure of Invention

The invention aims at: in order to overcome the problems in the prior art, the invention discloses a method for reforming the roof of an old building, which adopts an assembly type splicing technology to cover the old building and utilizes a cantilever beam system to realize wall body reforming.

The aim of the invention is achieved by the following technical scheme:

a method of retrofitting an old building roof, the method comprising: and dismantling the original parapet of the old building to the roofing gird or the roofing frame beam, finishing the reinforcement of the roofing gird/roofing frame beam, pouring a support foundation on the bearing node of the roofing gird/roofing frame beam, installing the lower part of the support, installing the roofing beam section with the upper part of the support, finishing the beam section combination, covering the precast slab and finishing the parapet railing installation.

According to a preferred embodiment, the roof beams Duan You are constructed from segmented prefabricated structures; wherein, the middle beam section adopts a rectangular structure, a water collecting tank and a prestress corrugated pipe are arranged on the middle beam section, and all the sections are connected by prestress.

According to a preferred embodiment, the roof beam section comprises a precast beam section with a cantilever beam, wherein a parapet wall back sill and a supporting stop block are arranged on the precast beam section with the cantilever beam, the height of the parapet wall back sill is set according to the height of a water converging surface required by a load, bolt holes for installing a railing are reserved on the parapet wall back sill, and the railing is directly fastened when installed; the bump stop is configured to prevent binding of the new roof rushing out of the skid seat by seismic lateral forces.

According to a preferred embodiment, the support is provided with a spaced arrangement of a sliding support and a fixed support on the same axis; a fixed support is arranged at the middle part of the multi-span structure, and a sliding support is arranged at the edge part; for a single span structure, one end of the single span structure is provided with a fixed support, and the other end of the single span structure is provided with a sliding support.

According to a preferred embodiment, after the precast beam segments are combined or installed, the precast roof panels are covered on the precast beam segments, the precast roof panels are connected with the precast beam segments through bolts, waterproof rubber mats are arranged in beam slab gaps, flexible waterproof materials are filled between the waterproof rubber mats and the precast structures, the waterproof rubber mats are shaped like a Chinese character 'ji', water draining holes are formed in the axillary corner parts, water flows into water tanks of the precast beams, and water flows into the end heads and then is led out into the gutter.

According to a preferred embodiment, the prefabricated roof boards are spliced by adopting a tongue-and-groove, waterproof rubber mats are arranged, and waterproof rubber is filled between the waterproof rubber mats and the prefabricated structures.

According to a preferred embodiment, after the roof structure is installed, a cornice prefabricated cover plate with a gutter is installed on the upper portion of the prefabricated cornice beam, a slope structure is arranged on the gutter, a rain water outlet is formed in the lowest position, and the cornice is discharged into a municipal rainwater pipe.

According to a preferred embodiment, the outer side of the cornice prefabricated cover plate is provided with eagle ditch water dripping lines.

According to a preferred embodiment, a hafin groove is reserved on the prefabricated cantilever beam, a bolt hole is reserved on the hafin groove, a fixed rail hanging frame is installed on the Ha Fen groove, and the hanging frame can slide on the Ha Fen groove, be assembled and be disassembled.

According to a preferred embodiment, a ring rail is fixedly arranged at the bottom end of the hanging bracket, an electric hoist is hung on the ring rail, and the electric hoist is networked with the intelligent control system to complete control movement; and a hanging basket and/or a lift car are arranged on the electric hoist.

The foregoing inventive concepts and various further alternatives thereof may be freely combined to form multiple concepts, all of which are contemplated and claimed herein. Various combinations will be apparent to those skilled in the art from a review of the present disclosure, and are not intended to be exhaustive or all of the present disclosure.

The invention has the beneficial effects that:

the invention adopts an updating and reforming method for capping the building roof in an assembled mode to ensure that the households of the top building are not influenced, and can be added with a plurality of functions, the reforming does not destroy the heat-insulating and waterproof functions of the roof of the original building, a cavity is formed between the new roof and the old roof to form air convection, the functions of sunshade ventilation, sound insulation and waterproof are achieved, and the living quality of the households of the top building is improved. And the sectional size of the component is reduced to the maximum extent by adopting an assembly type prestress technology, and the load is reduced so as to reduce the influence on the original structure.

Drawings

FIG. 1 is a schematic view of a roof construction after modification by the method of the invention;

FIG. 2 is a schematic view of the connection between a precast beam segment and a precast roof panel in the method of the present invention;

FIG. 3 is a schematic view of the waterproof rubber pad in FIG. 2;

FIG. 4 is a schematic cross-sectional view of a preform beam section in the method of the present invention;

FIG. 5 is a schematic view of the structure of a prefabricated cantilever beam in the method of the present invention.

Detailed Description

Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, in the present invention, if a specific structure, connection relationship, position relationship, power source relationship, etc. are not specifically written, the structure, connection relationship, position relationship, power source relationship, etc. related to the present invention can be known by those skilled in the art without any creative effort.

Example 1:

referring to fig. 1 to 5, there is shown a method of retrofitting an old building roof, the method comprising: and dismantling the original parapet of the old building to the roofing gird or the roofing frame beam, finishing the reinforcement of the roofing gird/roofing frame beam, pouring a support foundation on the bearing node of the roofing gird/roofing frame beam, installing the lower part of the support, installing the roofing beam section with the upper part of the support, finishing the beam section combination, covering the precast slab and finishing the parapet railing installation.

The method does not disturb the original roof structure and functional layer, only removes the original parapet wall and reinforces the structural ring beam of the roof, arranges shock insulation pad supports on the original bearing wall and the bearing column (arranging fixed supports and sliding supports according to different spans, fixing one end and sliding one end for the roof with small span L < 20 m, arranging fixed supports in the middle and sliding two ends for the span with L > 20 m), and connects precast beam sections (with cantilever beams) on the shock insulation supports, wherein the precast beam sections are connected into a whole by adopting prestress.

Specifically, original roofing parapet demolishs brickwork part, remains original reinforcing bar and sets up the girt reinforcing bar and pour the concrete once more, forms the reinforcement to roofing frame roof beam to set up the connection support basis at frame roof beam and bearing beam column node position, the connection support contains sliding support and fixed bolster, sets up according to the span is different, makes and connects and adopts anchor and bolted connection.

Preferably, the precast beam segment is completed in a PC component factory, and is decomposed on the basis of convenient transportation, the middle beam segment adopts a rectangular structure, a water collecting tank and a prestress corrugated pipe are arranged on the middle beam segment, and the two segments are connected by prestress, so that the precast beam segment is shown in reference to FIG. 4.

Preferably, the roof beam section comprises a precast beam section with a cantilever beam, wherein the precast beam section with the cantilever beam is provided with a parapet inverse bank and a supporting stop block, the height of the parapet inverse bank is set according to the height of a water converging surface required by load, bolt holes for installing the railing are reserved on the parapet inverse bank, and the railing is directly fastened during installation; the bump stop is configured to prevent binding of the new roof rushing out of the skid seat by seismic lateral forces.

Preferably, the support is provided with a sliding support and a fixed support which are arranged at intervals on the same axis; a fixed support is arranged at the middle part of the multi-span structure, and a sliding support is arranged at the edge part; for a single span structure, one end of the single span structure is provided with a fixed support, and the other end of the single span structure is provided with a sliding support.

Preferably, referring to fig. 2 and 3, after the prefabricated beam sections are assembled or installed, the prefabricated roof plates are covered on the prefabricated beam sections, the prefabricated roof plates are connected with the prefabricated beam sections by bolts, waterproof rubber pads are arranged in beam plate gaps, flexible waterproof materials are filled between the waterproof rubber pads and the prefabricated structures, the waterproof rubber pads are shaped like a Chinese character 'ji', water draining holes are formed in the axillary corner parts, water flows into water collecting tanks of the prefabricated beams, and water flows into the end heads and then is led into the gutter.

Furthermore, the prefabricated roof boards are spliced by adopting a tongue-and-groove, a waterproof rubber cushion is arranged, and waterproof rubber is filled between the waterproof rubber cushion and the prefabricated structure.

Preferably, the roof structure is installed, a cornice prefabricated cover plate with a gutter is installed on the upper portion of the prefabricated cantilever beam, a slope structure is arranged on the gutter, a rain water outlet is formed in the lowest position, and the roof structure is discharged into a municipal rainwater pipe.

Further, the outer side of the cornice prefabricated cover plate is provided with an eagle ditch water dripping line. So that scattered rainwater does not return.

Preferably, referring to fig. 5, a hafen groove is reserved on the prefabricated cantilever beam, a bolt hole is reserved on the hafen groove, a fixed rail hanging frame is installed on the Ha Fen groove, and the hanging frame can slide on the Ha Fen groove, be assembled and be disassembled.

Further, a ring rail is fixedly arranged at the bottom end of the hanging bracket, an electric hoist is hung on the ring rail, and the electric hoist is connected with an intelligent control system in a networking manner to complete control movement; and a hanging basket and/or a lift car are arranged on the electric hoist.

When hanging the hanging flower basket, can carry out the maintenance transformation of building facade and external window to when electric block hung the car to with intelligent management and control system and property security protection system linkage, provide emergent guarantee, provide a safe escape route through the window. When households need to decorate or transport materials, the vertical transport channel can be provided by being linked with a property system.

The invention adopts an updating and reforming method for capping the building roof in an assembled mode to ensure that the households of the top building are not influenced, and can be added with a plurality of functions, the reforming does not destroy the heat-insulating and waterproof functions of the roof of the original building, a cavity is formed between the new roof and the old roof to form air convection, the functions of sunshade ventilation, sound insulation and waterproof are achieved, and the living quality of the households of the top building is improved. And the sectional size of the component is reduced to the maximum extent by adopting an assembly type prestress technology, and the load is reduced so as to reduce the influence on the original structure.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (10)

1. The old building roof reconstruction method is characterized by comprising the following steps of: and dismantling the original parapet of the old building to the roofing gird or the roofing frame beam, finishing the reinforcement of the roofing gird/roofing frame beam, pouring a support foundation on the bearing node of the roofing gird/roofing frame beam, installing the lower part of the support, installing the roofing beam section with the upper part of the support, finishing the beam section combination, covering the precast slab and finishing the parapet railing installation.

2. The old construction roofing improvement method of claim 1 wherein said roofing beams Duan You are constructed of segmented prefabricated structures; wherein, the middle beam section adopts a rectangular structure, a water collecting tank and a prestress corrugated pipe are arranged on the middle beam section, and all the sections are connected by prestress.

3. The method of retrofitting a old building roof according to claim 1 or 2 wherein said roof beam sections comprise precast beam sections with cantilever beams,

the prefabricated beam section with the cantilever beam is provided with a parapet inverse bank and a supporting stop block, the height of the parapet inverse bank is set according to the height of a water converging surface required by load, bolt holes for installing the railing are reserved on the parapet inverse bank, and the railing is directly fastened during installation; the bump stop is configured to prevent binding of the new roof rushing out of the skid seat by seismic lateral forces.

4. The old building roof reconstruction method according to claim 3, wherein the support is provided with a sliding support and a fixed support which are arranged at intervals on the same axis;

a fixed support is arranged at the middle part of the multi-span structure, and a sliding support is arranged at the edge part; for a single span structure, one end of the single span structure is provided with a fixed support, and the other end of the single span structure is provided with a sliding support.

5. The method for reforming old building roof according to claim 1, wherein after the prefabricated beam sections are assembled or installed, the prefabricated roof plates are covered on the prefabricated beam sections, the prefabricated roof plates are connected with the prefabricated beam sections by bolts, waterproof rubber mats are arranged in beam plate gaps, flexible waterproof materials are filled between the waterproof rubber mats and the prefabricated structures, the waterproof rubber mats are shaped like a Chinese character 'ji', water drainage holes are arranged at the axillary corner positions, water flows into water collecting tanks of the prefabricated beams, and water flows into the end heads and then is led out into the gutter.

6. The method for reforming a roof of an old building according to claim 5, wherein the prefabricated roof panels are inserted by tongue-and-groove, waterproof rubber pads are arranged, and waterproof rubber is filled between the waterproof rubber pads and the prefabricated structure.

7. The method for reforming a roof of an old building according to claim 5, wherein after the installation of the roof structure is completed, a cornice prefabricated cover plate with a gutter is installed on the upper part of the prefabricated cantilever beam, the gutter is provided with a slope structure, a rain water outlet is formed at the lowest part, and the cornice prefabricated cover plate is discharged into a municipal rainwater pipe.

8. The method for retrofitting an old building roof according to claim 7, wherein an eagle ditch water drip is arranged on the outer side of the cornice prefabricated cover plate.

9. The method for retrofitting an old building roof according to claim 7, wherein a hafen groove is reserved on the prefabricated cantilever beam, a bolt hole is reserved on the hafen groove, a fixed rail hanging frame is installed on the Ha Fen groove, and the hanging frame can slide on the Ha Fen groove, be assembled and be disassembled.

10. The old building roof reconstruction method according to claim 9, wherein a ring rail is fixedly arranged at the bottom end of the hanging bracket, an electric hoist is hung on the ring rail, and the electric hoist is networked with the intelligent control system to complete control movement; and a hanging basket and/or a lift car are arranged on the electric hoist.