CN115306137B - Operation platform structure for installing suspended ceiling at bottom of high-altitude corridor and construction method thereof - Google Patents

Operation platform structure for installing suspended ceiling at bottom of high-altitude corridor and construction method thereof Download PDF

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Publication number
CN115306137B
CN115306137B CN202211003985.4A CN202211003985A CN115306137B CN 115306137 B CN115306137 B CN 115306137B CN 202211003985 A CN202211003985 A CN 202211003985A CN 115306137 B CN115306137 B CN 115306137B
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frame
unit
platform
lifting
hanging
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CN115306137A (en
Inventor
刘帅杨
许秀冬
段兵壮
于宏达
程祥
于小颖
成学卫
李永峰
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Beijing Fourth Construction & Engineering Co ltd
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Beijing Fourth Construction & Engineering Co ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • E04G3/32Hoisting devices; Safety devices
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • E04G5/007Devices and methods for erecting scaffolds, e.g. automatic scaffold erectors
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • E04G5/08Scaffold boards or planks
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • E04G5/14Railings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28Mobile scaffolds; Scaffolds with mobile platforms
    • E04G2003/286Mobile scaffolds; Scaffolds with mobile platforms mobile vertically

Abstract

The utility model provides an operation platform structure and method for installation of high altitude vestibule bottom furred ceiling, operation platform structure includes construction platform structure, platform mosaic structure and face limit protection structure, and construction platform structure is by a set of unit platform group's assembly, and the unit platform includes unit hanging basket support body, hangs hoisting point mechanism, power hoisting system and scaffold board. The hanging point mechanism comprises a floor loading-free structure, a hoisting steel wire rope and a hoisting steel wire rope clamp, the platform splicing structure comprises a frame pipe network detachably connected with a unit hanging basket frame body and rooting connecting components detachably connected with building structures on two sides, and the edge protection structure comprises a plane frame body structure, a foot blocking plate and a dense-mesh safety net. The invention ensures the convenience of aluminum ceiling installation, solves the problem of high difficulty of material transportation and staff installation and operation, has reasonable structural design, and is suitable for high-altitude large-span gallery bottom ceiling construction.

Description

Operation platform structure for installing suspended ceiling at bottom of high-altitude corridor and construction method thereof
Technical Field
The invention belongs to the field of high-altitude corridor construction operation, and particularly relates to an operation platform structure for installing a suspended ceiling at the bottom of a high-altitude corridor and a construction method thereof.
Background
In order to embody the outer facade effect of the building and meet the use function of the building, the high-altitude large-span steel corridor space structure is continuously applied to large-scale group public buildings or double-tower building buildings, and the outer decoration surface construction of the high-altitude large-span steel corridor has the construction difficulties of high altitude, large span, large construction load, high difficulty, high danger and the like in consideration of the corridor decoration effect and various outer decoration forms.
When two high-rise buildings are connected by a high-altitude large-span steel corridor, the outer decoration at the bottom of the corridor is a suspended ceiling curtain wall, and the suspended ceiling curtain wall is fixedly designed by adopting materials such as a main keel, heat-insulating rock wool, an aluminum veneer and the like; the suspended ceiling diamond grid is required to be integrally smooth after being installed, and the positioning accuracy requirement is high. When the ceiling at the bottom of the vestibule is constructed, a full framing or a crank arm overhead working truck is generally adopted for construction, and the construction mode has the defects of poor adaptability, low operability, high material transportation difficulty, low work efficiency and the like.
Disclosure of Invention
The invention aims to provide an operation platform structure for installing a suspended ceiling at the bottom of a high-altitude gallery and a construction method thereof, and aims to solve the technical problems of poor adaptability, low operability, high material transportation difficulty and lower work efficiency of an overhead operation vehicle with a full framing or a crank arm when the suspended ceiling at the bottom of the high-altitude gallery is constructed.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an operation platform structure for installing a suspended ceiling at the bottom of an aerial corridor is connected between the floors of building structures at two sides below the aerial corridor structure, wherein the direction for communicating the building structures at two sides is the longitudinal direction of the aerial corridor structure, the vertical longitudinal direction is the transverse direction, the aerial corridor structure comprises a main structure and a corridor floor slab arranged on the main structure,
the operation platform structure comprises a construction platform structure, a platform splicing structure and a temporary edge protection structure, wherein the construction platform structure is formed by assembling a group of unit platforms,
the unit platform comprises a unit basket support body, a hanging lifting point mechanism, a power lifting system and a scaffold board,
the unit hanging basket frame bodies are arranged at equal heights in the range of the corridor floor slab in a longitudinal interval row and a transverse interval row, the hanging point mechanisms are arranged in pairs, each group is correspondingly arranged at the vertical hoisting positions at the two ends of the unit hanging basket frame bodies, the positions of the corridor floor slab corresponding to the hanging point mechanisms are provided with hanging holes, the high-altitude corridor aluminum plate suspended ceiling to be installed is an aluminum plate layer formed by splicing aluminum single plates, the positions of the hanging holes avoid the aluminum single plates themselves and are all arranged at the joint positions of the aluminum single plates,
The unit hanging basket frame body comprises upright posts, and further comprises a horizontal frame which is arranged along the upright posts in a layered manner and fixedly connected with the upright posts, wherein the horizontal frame comprises a horizontal bottom frame connected with the bottom of the upright posts, a horizontal middle frame connected with the middle part of the upright posts and a horizontal top frame connected with the top of the upright posts, the horizontal bottom frame and the horizontal middle frame in the same elevation are fixedly connected through diagonal braces, the horizontal middle frame and the horizontal top frame form a unit guardrail of the unit hanging basket frame body, two transverse ends of the unit hanging basket frame body are respectively and detachably connected with end fences,
the hanging lifting point mechanism comprises a floor non-load structure, a lifting steel wire rope and a lifting steel wire rope clamp, the floor non-load structure is arranged on the upper side surface of the corridor floor around the lifting hole, the top of the lifting steel wire rope penetrates through the lifting hole to be wound and connected with the floor non-load structure in a hanging manner, the top of the lifting steel wire rope is wound and connected with the top of the end fence in a fixed manner through the lifting steel wire rope clamp, the bottom of the lifting steel wire rope is connected with the top of the end fence, the lifting height of the unit lifting basket frame body is adjusted by arranging a power lifting system inside,
the scaffold boards are longitudinally and fully paved on the upper sides of the same-row horizontal middle frames in the range of the corridor floor slab,
The platform splicing structure comprises a frame pipe network which is detachably connected with the unit basket frame bodies and rooting connecting components which are detachably connected with the building structures at two sides, wherein the frame pipe network consists of longitudinal frame pipes and transverse frame pipes, the frame pipes in each direction are respectively arranged at equal height intervals in parallel, the longitudinal frame pipes are inserted between the horizontal middle frame and the diagonal brace and are detachably connected with the bottom surface of the horizontal middle frame, the transverse frame pipes are inserted into gaps between two adjacent rows of unit basket frame bodies and are vertically arranged with the longitudinal frame pipes and are detachably connected with the longitudinal frame pipes, the rooting connecting components are arranged in one-to-one correspondence with the longitudinal frame pipes and detachably connected with the building structures at two sides through the rooting connecting components,
the utility model discloses a protection structure is faced to limit setting in vertical limb both sides, including plane support body structure, fender sole and close mesh formula safety net, plane support body structure is including protection pole setting and protection horizon bar, protection pole setting and horizontal shelf pipe one-to-one set up, the bottom of protection pole setting can dismantle with horizontal shelf pipe in vertical limb position and be connected or fixed connection, protection horizon bar is in the range longitudinal logical long setting of vestibule floor, can dismantle with the protection pole setting and be connected, keep off the inboard of sole setting at plane support body structure, close mesh formula safety net covers and hangs in plane support body structure's inboard or outside.
The aluminum veneer comprises an edge rectangular plate and a diamond plate, the edge rectangular plate is arranged along the periphery of the edge of the corridor floor, the diamond plate is arranged in the edge rectangular plate and connected with the edge rectangular plate, and the joint positions of the hoisting holes on the aluminum veneer comprise joint seams of the edge rectangular plate and the diamond plate and joint seams between the diamond plates.
The hoisting holes are formed around the obtuse angles of the rhombic plates at the joint positions of the rhombic plates.
The rooting connecting component comprises a rooting upright rod, a rooting cross rod, a top fixed connecting piece and a bottom fixed connecting piece, wherein the rooting upright rod is arranged in the layer height of the building structure, namely between an upper floor and a lower floor, the top of the rooting upright rod is fixedly connected with an upper floor beam, the bottom of the rooting upright rod is fixedly connected with a lower floor beam,
the rooting cross rod is propped against the inner side of the rooting upright rod and is close to the end part of the longitudinal shelf tube, each end part of the longitudinal shelf tube is detachably connected with the rooting cross rod to enable each longitudinal shelf tube to be connected into a whole,
the top of the rooting upright rod is abutted against the inner side of the upper floor beam and is connected with the upper floor beam through a top fixed connecting piece, the bottom of the rooting upright rod is abutted against the inner side of the lower floor beam and is connected with the lower floor beam through a bottom fixed connecting piece, or the bottom surface of the upper floor beam and the top surface of the lower floor beam are provided with clamping convex structures, clamping grooves which are matched with the clamping convex structures are arranged at corresponding positions of the rooting upright rod, and the clamping convex structures are clamped into the clamping grooves.
The rooting connecting component comprises a column holding cross rod, the longitudinal stand pipe extends to the inside of the building structure and is connected with a building structure column holding column in the layer height of the building structure, namely between an upper layer building surface and a lower layer building surface, the column holding position is located at the bottom of the building structure column, and the column holding cross rod is respectively arranged at two sides of the building structure column and is fixedly connected with the end part of the longitudinal stand pipe to form a holding frame.
The floor load-free structure comprises balancing weights, hanging pipes and lifting buffer skids, wherein the balancing weights are symmetrically arranged on the upper sides of the corridor floors around the lifting holes, two ends of each hanging pipe are respectively lapped on the balancing weights on two sides, the balancing weights are arranged between the hanging pipes and the corridor floors, the lifting buffer skids are arranged on the top surfaces of the hanging pipes in a falling mode, and the lifting steel wire ropes penetrate through the lifting holes and are hung on the hanging pipes and the lifting buffer skids through the balancing weights.
The power lifting system comprises a lifter, a safety lock, an electric cabinet, a safety steel wire rope, a reinforcing steel wire rope and a heavy hammer.
A construction method of an operation platform structure for installing a suspended ceiling at the bottom of a high-altitude corridor comprises the following construction steps:
step one, designing and manufacturing a platform:
step A, firstly, carrying out stress calculation on the operation platform structure according to load design: the load design comprises the dead weight of the operation platform structure, the load of an operator and a construction tool material and wind load, and the stress calculation comprises the stress checking calculation of a hoisting steel wire rope and a hanging lifting point mechanism;
And step B, manufacturing an operation platform structure: the manufacturing size of the construction platform structure is adapted to the size of the corridor floor, then the size of each unit hanging basket frame body, the transverse and longitudinal bidirectional spacing and arrangement form of the unit hanging basket frame bodies are determined according to the size of the aluminum plate layer, and the unit hanging basket frame bodies are numbered;
step two, reserving a hoisting hole:
drawing a joint pattern of the aluminum veneer in a plan view of the air corridor structure according to the division form of the aluminum veneer; marking hole positions of lifting holes on a plan according to the size of the unit basket support body, drawing a lifting hole layout, numbering the hole positions to match with aluminum veneer blocks, and reserving the hole positions in the construction process of the corridor floor slab according to the hole position layout;
the aperture of the hoisting hole is required to ensure that the hoisting steel wire rope runs through smoothly, and the center point of each hole site is required to be positioned at the splicing line position of the aluminum veneer so as to ensure that the hoisting steel wire rope vertically runs through the hoisting hole and the splicing line of the aluminum veneer;
step three, mounting a hanging point mechanism:
each hole site is provided with a hanging point mechanism, the top of the hanging wire rope bypasses the hanging pipe and the hanging buffer skid and is fixed by a wire rope clamp, the hanging wire rope does not need to be provided with a safety bend, and a balancing weight is arranged between the hanging pipe and the corridor floor slab in a cushioning manner;
Step four, mounting the basket support body of each unit crane:
step C, firstly, arranging a unit basket support body on the ground:
according to the size of the structural design of the construction platform, the basket frame bodies of the unit hanging basket are kept on the ground according to the transverse and longitudinal two-way intervals and the arrangement mode of the basket frame bodies of the unit hanging basket, then corresponding lifts, safety locks and electric cabinets are installed in the basket frame bodies of the unit hanging basket, and travel switch contacts in the safety locks and the electric cabinets are adjusted, so that the practical and reliable switch reaction is ensured;
step D, lifting the unit basket support body:
every two hanging point mechanisms are a group corresponding to each unit hanging basket support body; the bottom of the hoisting steel wire rope of each group of hanging hoisting point mechanism is connected with two end hoisting points, namely end fences, of the corresponding unit hanging basket frame body on the ground;
installing a safety steel wire rope, a reinforcing steel wire rope and a heavy hammer, carrying out electrifying inspection and whole machine test operation, and after the inspection is qualified, formally lifting the unit basket support body and starting an electric cabinet to slowly lift; the lifting height of each unit basket support body depends on the distance between the platform working surface and the outer bottom decoration surface of the air corridor structure and the floor elevation of building structures on two sides of the air corridor structure, and is used for ensuring that constructors smoothly enter the platform working surface from the building structures on two sides and have an operation space. Then sequentially lifting other unit basket support bodies according to the numbering sequence until all the unit basket support bodies are lifted;
Step five, splicing the bridge operation platform:
step E, firstly paving a scaffold board on a construction platform structure:
after all the unit basket frame bodies are lifted in place, vertically fully paving the scaffold boards, binding and connecting the scaffold boards with the horizontal middle frame by galvanized steel wires, and arranging a lap joint at the guardrail of the hanging platform of the hanging basket when the scaffold boards are overlapped;
step F, splicing construction of a platform splicing structure is carried out:
the longitudinal frame pipes penetrate through the longitudinal frame pipes longitudinally, the longitudinal frame pipes are sequentially connected and fixed with the same-row unit basket frame bodies through fasteners, and then when the end parts of the longitudinal frame pipes penetrate through building structures on two sides, the longitudinal frame pipes are connected with the building structures through rooting connection components, so that the longitudinal reinforcement construction of the platform splicing structure is sequentially completed;
the transverse frame pipe passes through the transverse frame pipe along the transverse direction, is connected and fixed with the longitudinal frame pipe by adopting a fastener in sequence, and completes the transverse reinforcement construction of the platform splicing structure in sequence;
and G, performing construction of the edge protection structure again:
the construction method comprises the steps of constructing a protection vertical rod, a protection horizontal rod, a foot blocking plate and a dense mesh type safety net at the edge position of a construction platform at two sides of the longitudinal edge, connecting the protection vertical rod with a transverse frame pipe, connecting the protection horizontal rod with the protection vertical rod through a fastener, wherein the protection horizontal rod is divided into a first horizontal rod and a second horizontal rod, the first horizontal rod is at a height of m from a scaffold plate, the second horizontal rod is at a height of m from the scaffold plate, and then constructing the foot blocking plate and the dense mesh type safety net, so that the construction of an operation platform structure is completed.
Step six, construction operation is carried out on the platform:
after the structure installation of the operation platform is finished and the inspection and acceptance are qualified; installing the curtain wall aluminum plate furred ceiling to the vestibule bottom, construction personnel stand on the platform and carry out corresponding construction, and after all installation of aluminium veneer according to the design, carry out the concatenation seam gluing process of aluminium veneer, because of hoist and mount wire rope all runs through the concatenation seam of aluminium veneer, for the aluminium veneer sealant continuity of guaranteeing the wire rope position, need design in advance and beat gluey order: and (3) dismantling a group of unit platforms after finishing a group of splice joints, performing glue spraying on the splice joints of the original rope threading positions at the tops of the dismantled unit platforms on adjacent unit platforms, and finishing glue spraying construction on the splice joints of the suspended ceiling curtain wall after constructing one by one according to the serial number sequence.
The step of dismantling the platform in the step six is as follows:
firstly verifying the serial numbers of the unit platforms, then gradually removing the pipe network and the scaffold boards, sequentially descending according to the serial numbers of the unit basket frame bodies, sequentially falling baskets, withdrawing ropes, closing a power supply and disassembling, and after the platform is removed, adopting grouting materials to block lifting holes of the corridor floor.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
According to the characteristics of the air corridor, the invention designs the targeted bridge operation platform, provides a working surface for construction such as external decoration of the bottom of the air corridor, ensures the operation safety and reduces the construction cost. The method has the following characteristics:
1. the whole detachable connection structure that is of operation platform guarantees the convenience of installation, has solved the big problem of material transportation and staff installation operation degree of difficulty, and structural design is reasonable, is applicable to high altitude and strides the construction of corridor bottom furred ceiling greatly.
2. The operation platform utilizes current hanging flower basket suspension platform to form the unit platform, make full use of current vestibule structural feature, reserve the lifting hole on the vestibule floor, carry out the vertical independent rooting of unit platform, every hole site is arranged and is used for hoisting the fixed hoisting point of operation platform, wherein the hole site is arranged and is arranged the design to be suited with aluminum plate's piece, pass the lifting hole through hoisting wire rope at subaerial unit platform and be connected with it, progressively promote each unit platform until the elevation is unanimous, the stability of its hoist and mount in-process wire rope from the vertical atress of hole site hoist and mount can be guaranteed in the hole site design, make operation platform can freely rise and descend, progressively promote to assemble in place, convenient follow-up aluminum plate is whole to beat simultaneously and is glued the construction.
3. The work platform utilizes the building structures on the two sides to solve the overall horizontal stress of the work platform, and the whole stress system is formed by paving scaffold plates, integrally pulling and connecting a scaffold pipe network in a platform splicing structure and connecting the scaffold pipe network with the existing building structures, so that the unit platforms are connected into a whole, a safe and reliable work platform is formed, the force transmission in the horizontal direction is ensured, the safety of the whole suspended ceiling construction process is ensured, and the stress is reasonable. The limb protection structure is reliably connected with the unit platform, and provides the functions of construction operation face and safety protection of the curtain wall suspended ceiling at the bottom of the air corridor.
4. The method is suitable for the bottom external decoration construction of an air corridor structure, particularly for the bottom external decoration construction of a large-span steel corridor or a steel-concrete corridor between two buildings, the suspended ceiling construction water flow sections are divided in the whole construction process, and after each water flow section is constructed, the suspended platform is gradually unloaded and falls to the ground.
5. The disturbance to the use function of the existing building is avoided, and the problem that the installation of the aluminum plate at the bottom of the corridor is influenced by adverse factors such as limited space at the bottom of the corridor is solved.
6. The invention solves the problems of poor adaptability, low operability, high material transportation difficulty, low work efficiency and the like in the construction of the gallery suspended ceiling by adopting the overhead working truck with the full framing or the crank arm, solves the problems of difficult material transportation and working personnel working up and down, and can directly enter buildings on two sides from a platform. The construction method reduces the manual scaffold erection operation and mechanical cost, simplifies the installation operation of the suspended ceiling of the air corridor curtain wall, saves the labor cost and part of labor cost, shortens the construction period and reduces the potential safety hazard. Meanwhile, the operation on the platform is convenient, the platform operates stably, and the installation quality of the curtain wall suspended ceiling is guaranteed; the cost can be saved by about 20% in a single engineering. After the platform is disassembled, the hanging basket hanging platform can still be continuously used in a turnover way, so that the hanging basket hanging platform has wide popularization and application value in the external decoration engineering of the bottom of the high-altitude corridor, the construction period, the quality and the safety targets are realized, and obvious economic and social benefits are obtained.
Drawings
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic view of the arrangement position structure of the present invention.
Fig. 2 is a schematic plan layout of the cradle body of the unit cradle.
Fig. 3 is a partial enlarged view at a of fig. 1.
Fig. 4 is a partial enlarged view of fig. 3.
Fig. 5 is an enlarged view of a portion of the cradle body of fig. 4.
Fig. 6 is an enlarged view of a portion of the single cradle body of fig. 3.
Fig. 7 is a schematic lateral side view of fig. 3.
Fig. 8 is a partial enlarged view of fig. 7.
Fig. 9 is an enlarged view of a portion of the suspension point mechanism of fig. 8.
Fig. 10 is a partially enlarged view of the basket body of fig. 9.
Fig. 11 is a schematic plan view of the rooting connection assembly of fig. 4.
FIG. 12 is a schematic side view of a second embodiment of a rooting connection assembly.
FIG. 13 is a schematic side view of a third embodiment of a rooting connection assembly.
Fig. 14 is a schematic plan view of an aluminum veneer.
Reference numerals: 1-air corridor structure, 11-main structure, 12-corridor floor, 13-lifting hole, 2-unit basket frame body, 21-upright column, 22-horizontal bottom frame, 23-horizontal middle frame, 24-horizontal top frame, 25-diagonal brace, 26-end fence, 27-unit guardrail upright column, 3-hanging lifting point mechanism, 31-floor unloading structure, 311-balancing weight, 312-hanging pipe, 313-lifting buffer skid, 32-lifting wire rope, 33-lifting wire rope clip, 4-scaffold board, 5-aluminum veneer, 51-edge rectangular plate, 52-water caltrop, 6-rack pipe network, 61-longitudinal rack pipe, 62-horizontal rack pipe, 7-rooting connection component, 71-rooting upright column, 72-rooting cross rod, 73-top fixed connection, 74-bottom fixed connection, 75-cross rod, 8-side protection structure, 81-protection upright column, 82-protection rod, 83-blocking, 9-splice position, 10-building structure, 101-upper floor, 103-lower floor clamp, 102-lower floor clamp, 104-lower floor clamp structure, 106-lower floor slab, and 106-floor slab structure.
Detailed Description
1-3, two buildings are directly connected by a steel structure air corridor at the top layer, namely the elevation 50m position, the longitudinal span of the corridor is about 16m, the transverse span is up to 19m, and the outer decoration of the bottom of the corridor is a curtain wall aluminum plate suspended ceiling. The suspended ceiling of the curtain wall adopts the fixed design of materials such as a main keel, a heat-insulating rock wool, an aluminum veneer and the like.
This kind of an operation platform structure for installation of high altitude vestibule bottom furred ceiling connects between the below of aerial vestibule structure 1, be close to the layer height of both sides building structure 10, aerial vestibule structure 1 is greater than 50m from the elevation on ground, and wherein the direction of intercommunication both sides building structure 10 is the vertical of aerial vestibule structure 1, and vertical longitudinal direction is horizontal, aerial vestibule structure 1 includes main structure 11 and the vestibule floor 12 of setting on main structure 11.
The operation platform structure comprises a construction platform structure, a platform splicing structure and a limb protection structure 8, and is shown in fig. 2, wherein the construction platform structure is formed by assembling a group of unit platforms.
Referring to fig. 3-10, the unit platform includes a unit hoist basket frame 2, a suspension hanging point mechanism 3, a power hoist system, and a scaffold board 4.
Referring to fig. 2, the unit hanging basket frame body 2 is arranged at equal heights within the scope of the corridor floor slab 12 in a longitudinal interval row and a transverse interval row, the hanging point mechanisms 3 are arranged in pairs, each group is correspondingly arranged at the vertical lifting positions at two ends of the unit hanging basket frame body 2, lifting holes 13 are formed in positions of the corridor floor slab 12 corresponding to the hanging point mechanisms 3, the high-altitude corridor aluminum plate suspended ceiling to be installed is an aluminum plate layer formed by splicing aluminum single plates 5, and the positions of the lifting holes 13 avoid the aluminum single plates 5 and are all formed at the joint positions of the aluminum single plates 5.
Referring to fig. 14, the aluminum veneer 5 includes an edge rectangular plate 51 and a rhombic plate 52, the edge rectangular plate 51 is arranged around the edge one of the gallery floor 12, the rhombic plate 52 is arranged inside the edge rectangular plate 51 and connected with the edge rectangular plate 51, and the joint position 9 of the hoisting hole 13 on the aluminum veneer 5 includes a joint between the edge rectangular plate 51 and the rhombic plate 52 and a joint between the rhombic plates. In this embodiment, the position of the seam of the rhombic plate 52 of the lifting hole 13 is arranged around the obtuse angle of the rhombic plate.
Referring to fig. 4-10, the unit basket frame body 2 includes a column 21, and further includes a horizontal frame layered along the column 21 and fixedly connected with the column 21, the horizontal frame includes a horizontal bottom frame 22 connected to the bottom of the column 21, a horizontal middle frame 23 connected to the middle of the column 21, and a horizontal top frame 24 connected to the top of the column 21, the horizontal bottom frame 22 and the horizontal middle frame 23 in the same vertical plane are fixedly connected through a diagonal brace 25, the horizontal middle frame 23 and the horizontal top frame 24 form a unit guardrail of the unit basket frame body 2, and unit guardrail uprights 27 can be additionally arranged on the unit guardrail, and two ends of the unit basket frame body 2 in the transverse direction are detachably connected with end fences 26 respectively.
Referring to fig. 4, 6 and 7-9, the hanging point mechanism 3 comprises a floor load-free structure 31, a hoisting wire rope 32 and a hoisting wire rope clamp 33.
The floor load-free structure 31 comprises a balancing weight 311, a hanging pipe 312 and a lifting buffer skid 313, wherein the balancing weight 311 is symmetrically arranged on the upper side of the corridor floor 12 around the upper side of the lifting hole 13, two ends of the hanging pipe 312 are respectively lapped on the balancing weights 311 on two sides, the balancing weight 311 is padded between the hanging pipe 312 and the corridor floor 12, the lifting buffer skid 313 is placed on the top surface of the hanging pipe 312, and the lifting steel wire rope 32 passes through the lifting hole 13 and is hung on the hanging pipe 312 and the lifting buffer skid 313 through the balancing weight 311.
The floor no-load structure 31 is arranged on the upper side surface of the corridor floor 12 around the lifting hole 13, the top of the lifting steel wire rope 32 penetrates through the lifting hole 13 to be wound and connected in a hanging manner on the floor no-load structure 31, the top of the lifting steel wire rope 32 is wound and connected through the lifting steel wire rope clamp 33 to be fixed, the bottom of the lifting steel wire rope 32 is connected with the top of the end fence 26, and the lifting height of the unit lifting basket frame body 2 is adjusted by arranging a power lifting system inside.
The power lifting system comprises a lifter, a safety lock, an electric cabinet, a safety steel wire rope, a reinforcing steel wire rope and a heavy hammer.
Referring to fig. 4-10, the scaffold boards 4 are longitudinally extended and fully laid on the upper sides of the in-line horizontal center frame 23 in the area of the gallery floor 12.
The platform splicing structure comprises a frame pipe network 6 detachably connected with the unit basket frame body 2 and rooting connecting components 7 detachably connected with the two-side building structures 10, wherein the frame pipe network 6 consists of longitudinal frame pipes 61 and transverse frame pipes 62, the frame pipes in each direction are respectively arranged at equal-height intervals in parallel, the longitudinal frame pipes 61 are inserted between the horizontal middle frame 23 and the inclined supporting rods 25 and are detachably connected with the bottom surfaces of the horizontal middle frame 23, the transverse frame pipes 62 are inserted into gaps between two adjacent rows of unit basket frame bodies 2, are vertically arranged with the longitudinal frame pipes 61 and are detachably connected with the longitudinal frame pipes 61, and the rooting connecting components 7 are arranged in one-to-one correspondence with the longitudinal frame pipes 61 and detachably connected with the two-side building structures 10 through the rooting connecting components 7.
Referring to fig. 2, 4 and 11, the rooting assembly 7 includes a rooting upright 71, a rooting cross bar 72, a top fixing connector 73 and a bottom fixing connector 74, wherein the rooting upright 71 is disposed in the floor height of the building structure 10, i.e. between the upper floor 101 and the lower floor 102, the top of the rooting upright 71 is fixedly connected with the upper floor beam 103, and the bottom of the rooting upright 71 is fixedly connected with the lower floor beam 104.
The rooting cross bars 72 are propped against the inner side of the rooting upright posts 71 and are close to the end parts of the longitudinal stand pipes 61, the end parts of the longitudinal stand pipes 61 are respectively and detachably connected with the rooting cross bars 72 to enable the longitudinal stand pipes 61 to be connected into a whole,
referring to fig. 12, wherein the top of the rooting upright 71 abuts against the inside of the upper floor beam 103 and is connected thereto by the top fixing connector 73, and the bottom of the rooting upright 71 abuts against the inside of the lower floor beam 104 and is connected thereto by the bottom fixing connector 74. Referring to fig. 13, or the bottom surface of the upper floor beam 103 and the top surface of the lower floor beam 104 are provided with a clamping convex structure 106, the corresponding position of the rooting upright 71 is provided with a clamping groove corresponding to the clamping convex structure 106, and the clamping convex structure 106 is clamped into the clamping groove.
Referring to fig. 2 and 4, the rooting connection assembly 7 includes a column-holding cross bar 75, the longitudinal rack tube 61 extends toward the interior of the building structure 10 and is connected with a building structure column 105 in the storey height of the building structure 10, i.e. between the upper floor 101 and the lower floor 102, the column-holding position is located at the bottom of the building structure column 105, and the column-holding cross bar 75 is respectively arranged at two sides of the building structure column 105 and is fixedly connected with the end of the longitudinal rack tube 61 to form a frame.
Referring to fig. 2, 4-8, 10, the edge protection structure 8 is disposed on two sides of the longitudinal edge, and comprises a planar frame structure, a foot blocking plate 83 and a dense mesh type safety net, the planar frame structure comprises a protection vertical rod 81 and a protection horizontal rod 82, the protection vertical rod 81 and the transverse frame pipe 62 are disposed in one-to-one correspondence, the bottom of the protection vertical rod 81 is detachably connected or fixedly connected with the transverse frame pipe 62 at the longitudinal edge position, the protection horizontal rod 82 is longitudinally disposed in the range of the vestibule floor 12 and detachably connected with the protection vertical rod 81, the foot blocking plate 83 is disposed on the inner side of the planar frame structure, and the dense mesh type safety net covers and hangs on the inner side or the outer side of the planar frame structure.
The construction method of the operation platform structure for installing the suspended ceiling at the bottom of the high-altitude corridor comprises the following construction steps:
step one, designing and manufacturing a platform:
step A, the operation load can refer to the relevant specification of the scaffold, and the stress calculation is carried out on the operation platform structure according to the load design: the load design comprises the dead weight of the working platform structure, the load of working personnel and construction tool materials and wind load, and the stress calculation comprises the stress checking calculation of the hoisting steel wire rope 32 and the hanging lifting point mechanism 3.
And step B, manufacturing an operation platform structure: the manufacturing size of the construction platform structure is adapted to the size of the corridor floor slab 12, and then the size of each unit basket frame body 2, the transverse and longitudinal bidirectional spacing and arrangement form of the unit basket frame bodies 2 are determined according to the size of the aluminum plate layer, and the unit basket frame bodies 2 are numbered.
In this embodiment, the unit basket frame body 2 may be set to be a standard basket with a length of 6000mm, a width of 700mm and a height of 1100mm, and the size and specification of the platform may be adjusted according to practical situations, and the upright post and the bottom frame are manufactured by square steel pipes. At this time, the distance between two adjacent longitudinal unit basket support bodies 2 is 800mm, and the distance between two adjacent transverse unit basket support bodies 2 in the same row is 200mm, so that the whole construction platform structure is provided with three rows and eleven rows, and the total number of the unit basket support bodies 2 is 33.
Step two, reserving a hoisting hole 13:
drawing a joint pattern of the aluminum veneer 5 in a plan view of the air corridor structure 1 according to the division form of the aluminum veneer 5; marking the hole positions of the lifting holes 13 on a plan according to the size of the unit basket support body 2, drawing a layout of the lifting holes 13, numbering the hole positions to match with the aluminum single plates 5, and reserving the hole positions in the construction process of the corridor floor slab 12 according to the layout of the hole positions;
The aperture of the hoisting hole 13 should ensure that the hoisting steel wire rope 32 runs through smoothly, and the central point of each hole site should be at the seam line position of the aluminum veneer 5, so as to ensure that the hoisting steel wire rope 32 runs through the hoisting hole 13 and the aluminum veneer 5 vertically.
Therefore, the distance between two adjacent vertical lifting holes 13 is 700mm+800 mm=1500 mm, the distance between the lifting holes 13 at two ends of the same two unit basket frame bodies 2 is equal to 6000m, which is the length of the unit basket frame bodies 2, and the distance between two adjacent horizontal unit basket frame bodies 2, which is the distance between the unit basket frame bodies 2, is 200mm.
Step three, mounting a hanging point mechanism 3:
each hole site is provided with a hanging point mechanism 3, and the top of the hanging wire rope 32 bypasses the hanging pipe 312 and the hanging buffer skid 313 and is fixed by the wire rope clamps 33, and the number of the hanging point mechanisms is generally not less than 4. The hoisting steel wire rope 32 does not need to be provided with a safety bend, and the balancing weight 311 is arranged between the hanging pipe 312 and the corridor floor 12 in a cushioning mode, so that load is prevented from being directly transmitted to the corridor floor 12 in the hoisting process. In this embodiment, the weight 311 has a mass of 25kg, a diameter of 8.3mm, a splicing length of greater than 20 times the diameter of the wire, a size of 5mm×10mm of the hoisting buffer skid 313, and a square steel pipe with a size of 70mm×70mm×5mm is used as the hanging pipe 312.
When the distance between two adjacent horizontal unit hanging basket frame bodies 2, namely the distance between the unit hanging basket frame bodies 2 is 200mm, the two hanging holes can enlarge the size of the hanging point mechanism 3 due to the fact that the distance is relatively close, and then the two hanging holes use the same hanging point mechanism 3 with relatively large size.
In the embodiment, the hanging pipe 312 and the hoisting buffer skid 313 are transversely arranged, three groups of balancing weights 311 are adopted by two transversely adjacent hoisting holes, gaps among the balancing weights 311 are aligned with the hoisting holes, and then the hanging pipe 312 spans across the three groups of balancing weights 311; two ends are erected on two groups of balancing weights 311 at the outermost side, the middle of the balancing weights 311 is arranged at the center, and steel wires of two adjacent unit hanging basket frame bodies 2 respectively pass through two hanging holes to be hung with hanging pipes 312 and hanging buffer skids 313.
Step four, mounting each unit basket support body 2:
step C, firstly, arranging a unit basket support body 2 on the ground:
according to the size of the structural design of the construction platform, the unit hanging basket frame bodies 2 are kept on the ground according to the transverse and longitudinal bidirectional intervals and the arrangement modes of the unit hanging basket frame bodies 2, then corresponding lifts, safety locks and electric cabinets are installed in the unit hanging basket frame bodies 2, and travel switch contacts in the safety locks and the electric cabinets are adjusted, so that the practical and reliable switching reaction is ensured.
Step D, lifting the unit basket support body 2:
every two hanging point mechanisms 3 are a group, and correspond to each unit hanging basket support body 2; the bottom of the hoisting steel wire rope 32 of each group of hanging hoisting point mechanisms 3 is connected with two end hoisting points, namely end fences 26, of the corresponding unit hanging basket frame body 2 on the ground;
installing a safety steel wire rope, a reinforcing steel wire rope and a heavy hammer, carrying out electrifying inspection and whole machine test operation, and after the inspection is qualified, formally lifting the unit basket support body 2, and starting an electric cabinet to slowly lift; the lifting height of each unit basket support body 2 depends on the distance between the platform working surface and the outer bottom decoration surface of the air corridor structure 1 and the floor elevation of the building structures 10 on the two sides of the air corridor structure 1, and is controlled to ensure that constructors smoothly enter the platform working surface from the building structures 10 on the two sides and have an operation space. And then sequentially lifting the other unit basket support bodies 2 according to the serial number sequence until all the unit basket support bodies 2 are lifted.
Step five, splicing the bridge operation platform:
step E, firstly paving a scaffold board 4 on a construction platform structure:
after all the unit hanging basket frame bodies 2 are lifted in place, the scaffold boards 4 are longitudinally fully paved, the scaffold boards 4 are connected with the horizontal middle frame 23 in a binding way by galvanized steel wires, and when the scaffold boards 4 are in lap joint, the lap joint positions are arranged at any positions within the width range of the unit hanging basket frame bodies, so that the lap joint positions are prevented from being suspended.
In this example, the scaffold plate has a length of 6m and a thickness of 50mm.
Step F, splicing construction of a platform splicing structure is carried out:
the longitudinal frame pipe 61 penetrates through the longitudinal frame pipe 61 longitudinally, the longitudinal frame pipe 61 is sequentially connected and fixed with the same-column unit basket frame body 2 through fasteners, and then when the end part of the longitudinal frame pipe 61 penetrates through the building structures 10 on two sides, the longitudinal frame pipe 61 is connected with the building structures 10 through the rooting connecting component 7, and the longitudinal reinforcement construction of the platform splicing structure is sequentially completed;
the transverse frame pipe 62 passes through in the transverse direction, is sequentially connected and fixed with the longitudinal frame pipe 61 by adopting a fastener, and sequentially completes the transverse reinforcement construction of the platform splicing structure;
in the embodiment, the scaffold pipe networks are scaffold steel pipes, and the sizes are 48.3mm in diameter and 3.6mm in wall thickness.
The rooting connecting component 7 comprises a rooting upright post 71, a rooting cross rod 72, a top fixed connecting piece 73 and a bottom fixed connecting piece 74, wherein the rooting upright post 71 is a square steel pipe, and the rooting cross rod 72 is a scaffold steel pipe.
And G, performing construction of the edge protection structure again:
the construction method comprises the steps of constructing a protection vertical rod 81, a protection horizontal rod 82, a foot blocking plate 83 and a dense mesh type safety net at the edge position of a construction platform on two sides of a longitudinal edge, connecting the protection vertical rod 81 with a transverse frame pipe 62, connecting the protection horizontal rod 82 with the protection vertical rod 81 through fasteners, wherein the protection horizontal rod 82 is divided into a first horizontal rod and a second horizontal rod, the height of the first horizontal rod from a scaffold board 4 is 0.6m, the height of the second horizontal rod from the scaffold board 4 is 1.2m, and then constructing the foot blocking plate 83 and the dense mesh type safety net to finish construction of an operation platform structure.
In this embodiment, the protection upright 81 and the protection horizontal rod 82 are scaffold steel pipes, and the dimensions are 48.3mm in diameter and 3.6mm in wall thickness. In this embodiment, the number of the transverse stand pipes 62 is first set to be one-to-one corresponding to the protection uprights 81. The end rail is a vertical planar frame body larger than the unit platform in size, and also has end upright posts and end cross bars, and two transverse frame tubes 62 can be additionally arranged at the positions of the end upright posts.
Step six, construction operation is carried out on the platform:
after the structure installation of the operation platform is finished and the inspection and acceptance are qualified; installing the curtain wall aluminum plate furred ceiling to the vestibule bottom, construction personnel stand on the platform and carry out corresponding construction, and after all installation of aluminium veneer 5 according to the design, carry out the concatenation seam gluing process of aluminium veneer 5, because of hoist and mount wire rope 32 all runs through the concatenation seam of aluminium veneer 5, for the aluminium veneer 5 sealant continuity of guaranteeing the wire rope position, need design in advance and beat gluey order: and (3) dismantling a group of unit platforms after finishing a group of splice joints, performing glue spraying on the splice joints of the original rope threading positions at the tops of the dismantled unit platforms on adjacent unit platforms, and finishing glue spraying construction on the splice joints of the suspended ceiling curtain wall after constructing one by one according to the serial number sequence.
The step of dismantling the platform in the step six is as follows:
firstly, verifying the serial numbers of the unit platforms, then gradually removing the scaffold pipe network 6 and the scaffold board 4, sequentially descending according to the serial numbers of the unit basket support body 2, sequentially falling down baskets, rope returning, power supply closing and disassembling, and carrying out technical and safe bottom crossing on operation workers in the whole platform removing process. When the safety protection device is disassembled, a special person is responsible for commanding, and a warning line is arranged in the disassembly range, so that personnel can be prevented from intruding into the safety protection device to generate safety accidents. The dismantling personnel wear the safety belt, forbid downwards throwing the platform component, and after the platform is dismantled, the lifting hole 13 of the corridor floor slab 12 is blocked by grouting materials.
In the invention, the steel pipes are detachably connected, and the connection between the steel pipes is realized by adopting fasteners.

Claims (10)

1. A operation platform structure for installation of high altitude vestibule bottom furred ceiling, its characterized in that: the utility model is connected between the floors of the building structures (10) at two sides below the air corridor structure (1), wherein the direction for communicating the building structures (10) at two sides is the longitudinal direction of the air corridor structure (1), the vertical longitudinal direction is the transverse direction, the air corridor structure (1) comprises a main structure (11) and a corridor floor slab (12) arranged on the main structure (11),
The operation platform structure comprises a construction platform structure, a platform splicing structure and a temporary edge protection structure (8), the construction platform structure is formed by assembling a group of unit platforms,
the unit platform comprises a unit basket support body (2), a hanging lifting point mechanism (3), a power lifting system and a scaffold board (4),
the unit hanging basket frame bodies (2) are arranged at equal heights within the range of the corridor floor slab (12) in a longitudinal interval row and a transverse interval row, the hanging point mechanisms (3) are arranged in pairs, each group is correspondingly arranged at the vertical lifting positions at the two ends of the unit hanging basket frame bodies (2), the positions of the corridor floor slab (12) corresponding to the hanging point mechanisms (3) are provided with hanging holes (13), the high-altitude corridor aluminum plate suspended ceiling to be installed is an aluminum plate layer formed by splicing aluminum single plates (5), the positions of the hanging holes (13) avoid the aluminum single plates (5) and are all arranged at the joint positions of the aluminum single plates (5),
the unit hanging basket frame body (2) comprises an upright post (21), and further comprises a horizontal frame which is arranged in a layered manner along the upright post (21) and fixedly connected with the upright post, wherein the horizontal frame comprises a horizontal bottom frame (22) connected with the bottom of the upright post (21), a horizontal middle frame (23) connected with the middle part of the upright post (21) and a horizontal top frame (24) connected with the top of the upright post (21), the horizontal bottom frame (22) and the horizontal middle frame (23) in the same vertical face are fixedly connected through a diagonal brace (25), the horizontal middle frame (23) and the horizontal top frame (24) form a unit guardrail of the unit hanging basket frame body (2), two transverse ends of the unit hanging basket frame body (2) are respectively detachably connected with end fences (26),
The hanging lifting point mechanism (3) comprises a floor non-load structure (31), a lifting steel wire rope (32) and a lifting steel wire rope clamp (33), the floor non-load structure (31) is arranged on the upper side surface of a vestibule floor (12) around a lifting hole (13), the top of the lifting steel wire rope (32) penetrates through the lifting hole (13) to be wound and bent on the floor non-load structure (31) and is in hanging connection, the top of the lifting steel wire rope (32) is wound and bent to be fixed through the lifting steel wire rope clamp (33), the bottom of the lifting steel wire rope (32) is connected with the top of an end fence (26), the lifting height of the unit lifting basket frame (2) is adjusted by arranging a power lifting system inside,
the scaffold board (4) is longitudinally and fully paved on the upper side of the same-row horizontal middle frame (23) in the range of the corridor floor (12),
the platform splicing structure comprises a frame pipe network (6) which is detachably connected with the unit basket frame bodies (2) and rooting connecting components (7) which are detachably connected with the two side building structures (10), the frame pipe network (6) consists of longitudinal frame pipes (61) and transverse frame pipes (62), the frame pipes in each direction are respectively arranged at equal-height intervals in parallel, wherein the longitudinal frame pipes (61) are inserted between the horizontal middle frame (23) and the diagonal brace (25) and are detachably connected with the bottom surface of the horizontal middle frame (23), the transverse frame pipes (62) are inserted into gaps between two adjacent rows of unit basket frame bodies (2) and are vertically arranged and detachably connected with the longitudinal frame pipes (61), the transverse frame pipes (62) are positioned at the lower sides of the longitudinal frame pipes (61), the rooting connecting components (7) are arranged in one-to-one correspondence with the longitudinal frame pipes (61) and detachably connected with the two side building structures (10) through the rooting connecting components (7),
The utility model provides a face limit protection architecture (8) sets up in vertical face limit both sides, including plane support body structure, fender sole (83) and close mesh formula safety net, plane support body structure includes protection pole setting (81) and protection horizon bar (82), protection pole setting (81) and horizontal shelf pipe (62) one-to-one set up, the bottom of protection pole setting (81) can dismantle with horizontal shelf pipe (62) in vertical face limit position or fixed connection, protection horizon bar (82) can dismantle with protection pole setting (81) in the vertical overall length setting of scope of corridor floor (12) and be connected, fender sole (83) set up in plane support body structure's inboard, close mesh formula safety net covers and hangs in plane support body structure's inboard or outside.
2. The work platform structure for installation of a ceiling at the bottom of an overhead vestibule of claim 1, wherein: the aluminum veneer (5) comprises an edge rectangular plate (51) and a rhombic plate (52), the edge rectangular plate (51) is arranged around the edge of the corridor floor (12), the rhombic plate (52) is arranged inside the edge rectangular plate (51) and connected with the edge rectangular plate (51), and the joint seam position (9) of the lifting hole (13) on the aluminum veneer (5) comprises a joint seam of the edge rectangular plate (51) and the rhombic plate (52) and a joint seam between the rhombic plates.
3. The work platform structure for installation of a ceiling at the bottom of an overhead vestibule of claim 2, wherein: the hoisting holes (13) are formed around the obtuse angles of the rhombic plates at the joint positions of the rhombic plates (52).
4. The work platform structure for installation of a ceiling at the bottom of an elevated corridor of claim 3, wherein: the rooting connection component (7) comprises a rooting vertical rod (71), a rooting cross rod (72), a top fixed connection piece (73) and a bottom fixed connection piece (74), the rooting vertical rod (71) is arranged in the layer height of the building structure (10), namely between an upper floor (101) and a lower floor (102), the top of the rooting vertical rod (71) is fixedly connected with an upper floor beam (103), the bottom of the rooting vertical rod (71) is fixedly connected with a lower floor beam (104),
the rooting cross rod (72) is propped against the inner side of the rooting upright rod (71) and is close to the end part of the longitudinal rack pipe (61), each end part of the longitudinal rack pipe (61) is detachably connected with the rooting cross rod (72) respectively to enable each longitudinal rack pipe (61) to be connected into a whole,
the top of the rooting upright rod (71) is abutted against the inner side of the upper floor beam (103) and is connected with the upper floor beam through a top fixed connecting piece (73), the bottom of the rooting upright rod (71) is abutted against the inner side of the lower floor beam (104) and is connected with the lower floor beam through a bottom fixed connecting piece (74), or the bottom surface of the upper floor beam (103) and the top surface of the lower floor beam (104) are provided with clamping convex structures (106), clamping grooves which are matched with the clamping convex structures (106) are formed in corresponding positions of the rooting upright rod (71), and the clamping convex structures (106) are clamped into the clamping grooves.
5. The work platform structure for installation of a ceiling at the bottom of an elevated corridor of claim 3, wherein: the rooting connection assembly (7) comprises a column holding cross rod (75), the longitudinal stand pipe (61) extends towards the inside of the building structure (10) and is connected with a column holding structure column (105) in the layer height of the building structure (10), namely between an upper layer building surface (101) and a lower layer building surface (102), the column holding position is located at the bottom of the building structure column (105), and the column holding cross rod (75) is respectively arranged at two sides of the building structure column (105) and is fixedly connected with the end part of the longitudinal stand pipe (61) to form a frame.
6. The work platform structure for installation of a ceiling at the bottom of an elevated corridor as in claim 4 or 5, wherein: the utility model provides a floor exempts from to hold in palm structure (31) including balancing weight (311), hanging pipe (312) and lift by crane buffering skid (313), balancing weight (311) symmetry sets up the upside of vestibule floor (12) around lifting hole (13), the both ends of hanging pipe (312) overlap joint respectively on balancing weight (311) of both sides, balancing weight (311) pad is between hanging pipe (312) and vestibule floor (12), lift by crane buffering skid (313) fall to put at the top surface of hanging pipe (312), hoist by crane wire rope (32) pass lifting hole (13) and through balancing weight (311) articulates on hanging pipe (312) and lift by crane buffering skid (313).
7. The work platform structure for installation of a ceiling at the bottom of an overhead vestibule of claim 6, wherein: the power lifting system comprises a lifter, a safety lock, an electric cabinet, a safety steel wire rope, a reinforcing steel wire rope and a heavy hammer.
8. A construction method of an operation platform structure for installation of a ceiling at the bottom of an elevated corridor according to claim 7, characterized by comprising the following construction steps:
step one, designing and manufacturing a platform:
step A, firstly, carrying out stress calculation on the operation platform structure according to load design: the load design comprises the dead weight of the operation platform structure, the load of an operator and the material of a construction tool and the wind load, and the stress calculation comprises the stress checking calculation of a hoisting steel wire rope (32) and a hanging lifting point mechanism (3);
and step B, manufacturing an operation platform structure: the manufacturing size of the construction platform structure is matched with the size of the corridor floor slab (12), then the size of each unit basket frame body (2) and the transverse and longitudinal bidirectional spacing and arrangement form of the unit basket frame bodies (2) are determined according to the size of the aluminum plate layer, and the unit basket frame bodies (2) are numbered;
step two, reserving a hoisting hole (13):
Drawing a joint pattern of the aluminum veneer (5) in a plan view of the air corridor structure (1) according to the grid form of the aluminum veneer (5); marking hole positions of lifting holes (13) on a plan according to the size of the unit basket support body (2), drawing a layout of the lifting holes (13), numbering the hole positions to match with aluminum single plates (5), and reserving the hole positions in the construction process of the corridor floor (12) according to the layout of the hole positions;
the aperture of the hoisting hole (13) is required to ensure that the hoisting steel wire rope (32) runs through smoothly, and the center point of each hole site is required to be positioned at the seam line of the aluminum veneer (5) so as to ensure that the hoisting steel wire rope (32) vertically runs through the hoisting hole (13) and the seam line of the aluminum veneer (5);
step three, mounting a hanging point mechanism (3):
each hole site is provided with a hanging point mechanism (3), the top of a hoisting steel wire rope (32) bypasses a hanging pipe (312) and a hoisting buffer skid (313) and is fixed by a steel wire rope clamp (33), the hoisting steel wire rope (32) does not need to be provided with a safety bend, and a balancing weight (311) is arranged between the hanging pipe (312) and a corridor floor slab (12) in a cushioning mode;
step four, installing the basket support body (2) of each unit crane:
step C, firstly, arranging a unit basket support body (2) on the ground:
According to the size of the structural design of the construction platform, the unit basket support bodies (2) are kept on the ground according to the transverse and longitudinal spacing and arrangement form of the unit basket support bodies (2), then corresponding lifts, safety locks and electric cabinets are installed in the unit basket support bodies (2), and travel switch contacts in the safety locks and the electric cabinets are adjusted, so that the practical and reliable switching reaction is ensured;
step D, lifting the unit basket support body (2):
every two hanging point mechanisms (3) are a group, and correspond to each unit hanging basket support body (2); the bottom of the hoisting steel wire rope (32) of each group of hanging point mechanisms (3) is connected with two end lifting points, namely end fences (26), of the corresponding unit basket support body (2) on the ground;
installing a safety steel wire rope, a reinforcing steel wire rope and a heavy hammer, carrying out electrifying inspection and whole machine test operation, and after the inspection is qualified, formally lifting the unit basket support body (2) and starting an electric cabinet to slowly lift; the lifting height of each unit basket support body (2) depends on the distance between the platform working surface and the outer bottom decoration surface of the air corridor structure (1) and the floor elevation of the building structures (10) at the two sides of the air corridor structure (1), so as to ensure that constructors smoothly enter the platform working surface from the building structures (10) at the two sides and have an operation space,
Then sequentially lifting other unit basket support bodies (2) according to the numbering sequence until all the unit basket support bodies (2) are lifted;
step five, splicing the bridge operation platform:
step E, firstly paving a scaffold board (4) on a construction platform structure:
after all the unit basket support bodies (2) are lifted in place, the scaffold boards (4) are fully paved longitudinally, the scaffold boards (4) are bound and connected with the horizontal middle frame (23) by galvanized steel wires,
step F, splicing construction of a platform splicing structure is carried out:
the longitudinal frame pipe (61) penetrates through the longitudinal frame pipe (61) longitudinally, the longitudinal frame pipe (61) is sequentially connected and fixed with the same-column unit basket frame body (2) through fasteners, and then when the end part of the longitudinal frame pipe (61) penetrates through building structures on two sides, the longitudinal frame pipe is connected with the building structures through rooting connection components, and the longitudinal reinforcement construction of the platform splicing structure is sequentially completed;
the transverse frame pipe (62) passes through in the transverse direction, is sequentially connected and fixed with the longitudinal frame pipe (61) by adopting a fastener, and sequentially completes the transverse reinforcement construction of the platform splicing structure;
and G, performing construction of the edge protection structure again:
the construction method comprises the steps of constructing a protection vertical rod (81), a protection horizontal rod (82), a foot blocking plate (83) and a dense mesh type safety net at the edge position of a construction platform on two sides of a longitudinal edge, connecting the protection vertical rod (81) with a transverse frame pipe (62), connecting the protection horizontal rod (82) with the protection vertical rod (81) through a fastener, wherein the protection horizontal rod (82) is divided into a first horizontal rod and a second horizontal rod, the height of the first horizontal rod from a scaffold board (4) is 0.6m, the height of the second horizontal rod from the scaffold board (4) is 1.2m, and then constructing the foot blocking plate (83) and the dense mesh type safety net to finish construction of an operation platform structure.
9. The construction method of the work platform structure for installing the ceiling at the bottom of the high-altitude gallery according to claim 8, wherein:
step six, construction operation is carried out on the platform:
after the structure installation of the operation platform is finished and the inspection and acceptance are qualified; installing the curtain wall aluminum plate furred ceiling to the vestibule bottom, construction personnel stand on the platform and carry out corresponding construction, and after all installing according to the design, aluminium veneer (5) carry out the concatenation seam gluing process of aluminium veneer (5), because of hoist and mount wire rope (32) all run through the concatenation seam of aluminium veneer (5), in order to ensure the aluminium veneer (5) sealant continuity of wire rope threading position, need design in advance and beat gluey order: and (3) dismantling a group of unit platforms after finishing a group of splice joints, performing glue spraying on the splice joints of the original rope threading positions at the tops of the dismantled unit platforms on adjacent unit platforms, and finishing glue spraying construction on the splice joints of the suspended ceiling curtain wall after constructing one by one according to the serial number sequence.
10. The construction method of the work platform structure for installing the ceiling at the bottom of the high-altitude gallery according to claim 9, wherein:
the step of dismantling the platform in the step six is as follows:
firstly, verifying the serial numbers of unit platforms, then gradually removing a scaffold pipe network (6) and a scaffold board (4), sequentially landing according to the serial numbers of the unit basket support body (2), sequentially falling baskets, unwinding ropes, closing a power supply and disassembling, and plugging lifting holes (13) of a corridor floor slab (12) by grouting after the platform is removed.
CN202211003985.4A 2022-08-22 2022-08-22 Operation platform structure for installing suspended ceiling at bottom of high-altitude corridor and construction method thereof Active CN115306137B (en)

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CN114776029A (en) * 2022-04-20 2022-07-22 中建三局第三建设工程有限责任公司 Construction operation method and system for outer curtain wall of corridor of high-altitude large-span building

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