CN111502226B - Steel structure platform integral lifting device and construction method thereof - Google Patents
Steel structure platform integral lifting device and construction method thereof Download PDFInfo
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- CN111502226B CN111502226B CN202010329861.XA CN202010329861A CN111502226B CN 111502226 B CN111502226 B CN 111502226B CN 202010329861 A CN202010329861 A CN 202010329861A CN 111502226 B CN111502226 B CN 111502226B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 180
- 239000010959 steel Substances 0.000 title claims abstract description 180
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 239000011521 glass Substances 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 16
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000003032 molecular docking Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
- E04G3/32—Hoisting devices; Safety devices
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
- E04G3/32—Hoisting devices; Safety devices
- E04G3/325—Safety devices for stabilising the mobile platform, e.g. to avoid it swinging in the wind
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/007—Devices and methods for erecting scaffolds, e.g. automatic scaffold erectors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/16—Struts or stiffening rods, e.g. diagonal rods
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G2005/008—Hoisting devices specially adapted as part of a scaffold system
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the technical field of construction steel structure installation and construction, in particular to a steel structure platform integral lifting device and a construction method thereof. The invention has the effects of stable lifting of the steel platform and high safety.
Description
Technical Field
The invention relates to the technical field of construction steel structure installation and construction, in particular to a steel structure platform integral lifting device and a construction method thereof.
Background
In modern architecture, a corridor generally refers to a connector for overhead connection between two or more high-rise buildings. At present, high-rise buildings in cities are more and more, and for the vestibule playing a connecting role in the high-rise buildings, not only the construction environment of the vestibule is more and more complex, but also the structure of the vestibule is more and more complex. When putting up concrete structure's vestibule, need add the steel construction platform of interim support in the building, the steel construction platform generally sets up wholly, then promotes the steel construction platform to appointed elevation through hoisting device and fixes.
Chinese patent publication No. CN110344501A discloses "a construction method for integral lifting of steel structure corridor", which includes the following steps: assembling an overhanging structure, arranging a lifting platform, installing hydraulic synchronous lifting equipment, a temporary lifting appliance, an earth anchor and a steel strand, debugging and checking, calculating and analyzing working conditions by a computer and regulating, installing a rod piece and dismantling the equipment. The hydraulic synchronous lifting equipment is installed on the lifting platform, the temporary lifting appliance is installed on the steel structure corridor, the hydraulic synchronous lifting equipment and the temporary lifting appliance are connected to the two ends of the steel strand respectively, and the hydraulic synchronous lifting equipment integrally lifts the steel structure corridor. It is through accomplishing the concatenation of steel construction vestibule underground, need not to build high altitude construction platform and carry out high altitude concatenation, has reduced work load.
The above prior art solutions have the following drawbacks: the steel strand wires are flexible bearing riggings, and the steel structure vestibule easily takes place to rock by a wide margin in the promotion process, and the weight of steel structure vestibule is big, aims at the adjustment difficulty, leads to the installation degree of difficulty big. Simultaneously, the steel construction vestibule rocks, can lead to the atress inequality of steel strand wires, and the pulling force that receives when steel strand wires is greater than the power of grabbing of hydraulic pressure synchronous lifting means to steel strand wires, and the steel strand wires slide to appear, and the steel construction vestibule is unbalanced, appears the incident easily.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the integral lifting device for the steel structure platform, so that the steel platform is not easy to shake greatly in the lifting process, and the construction safety is improved.
The invention also discloses a construction method suitable for the steel structure platform integral lifting device, so that the steel structure platform is stably lifted integrally, and meanwhile, a glass curtain wall of a building main body below the corridor can be installed.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a steel construction platform whole hoisting device, includes two building subject and steel platform, the steel platform is located between two building subject, is equipped with interim hoist on the steel platform, all is equipped with the promotion platform on two building subject, be equipped with the lifting mechanism on the promotion platform, be connected with steel strand wires on the lifting mechanism, the one end that the lifting mechanism was kept away from to steel strand wires is connected with interim hoist, two all be equipped with the guide rail in the building subject, the guide rail sets up along building subject direction of height, and the side that the guide rail is close to the steel platform is equipped with the guide slot, the guide slot sets up along the length direction of guide rail, be equipped with the gag lever post on the steel platform, the one end and the guide slot sliding connection of steel platform are kept away.
Through adopting above-mentioned technical scheme, promote the in-process, the gag lever post slides in the guide slot, and when the steel platform appeared rocking, the steel platform drove the gag lever post, and the lateral wall of guide slot is touchhed to the gag lever post, and the motion of guide slot restriction gag lever post this moment realizes spacing the steel platform, avoids the steel platform to take place rocking by a wide margin. Through spacing steel platform, promote the in-process, make steel platform counterpoint convenient, reduce the installation degree of difficulty. Meanwhile, the condition that the steel strand slides is reduced, and the construction safety is improved.
The present invention in a preferred example may be further configured to: the utility model discloses a steel platform, including guide slot, supporting seat, hinge seat, gag lever post, guide slot, supporting seat internal fixation have a plurality of, and a plurality of supporting seat interval sets up in the guide slot, be equipped with articulated seat on the steel platform, the gag lever post is articulated with articulated seat, is equipped with on the gag lever post and makes gag lever post to guide slot direction pivoted elastic component.
Through adopting above-mentioned technical scheme, promote the in-process, the supporting seat is touch to the gag lever post, and the gag lever post rotates to keeping away from the guide slot direction for the gag lever post can pass through the supporting seat, and after through the supporting seat, the elasticity of elastic component makes the gag lever post rotate to the guide slot direction and gets back to inside the guide slot. If the gliding condition appears in the steel strand wires, the gag lever post slides in the guide slot and touches the supporting seat, and supporting seat accessible gag lever post provides interim support for the steel platform, further improves the security of construction.
The present invention in a preferred example may be further configured to: be equipped with on the steel platform and accept the board, it is articulated with the steel platform to accept one side that the guide rail was kept away from to the board, articulated seat is fixed on accepting the board, and the surface of accepting the board and deviating from articulated seat is equipped with the connecting rod, the bottom of connecting rod with accept the board articulated, be fixed with the mounting panel on the steel platform, be equipped with the bar hole on the mounting panel, the top of connecting rod pass the bar hole and with bar hole sliding connection, be equipped with the mounting that is used for fixed connecting rod on the mounting panel.
Through adopting above-mentioned technical scheme, the gag lever post is installed on accepting the board, and the setting up in bar hole makes the connecting rod have the space of operation, accomplishes the vestibule operation back, loosens the mounting, accepts the board through the connecting rod downwardly rotating, and the gag lever post leaves the guide slot, when transferring steel platform, and the supporting seat can not form the hindrance.
The present invention in a preferred example may be further configured to: be equipped with the connecting block on the mounting panel, the connecting block is located the both sides in bar hole, be equipped with spacing hole on the connecting rod, the mounting is the bolt, bolt and connecting block sliding connection, spacing hole is worn to locate by the bolt.
Through adopting above-mentioned technical scheme, the bolt alternates in spacing downthehole, and the connecting rod is fixed at the mounting panel and the connection length of accepting between the board, accepts the unable rotation of board, makes to accept the board and leans on the steel platform. The bolt is pulled out, the bolt leaves the limiting hole, the bearing plate can rotate downwards, and the limiting rod is driven to leave the guide groove.
The present invention in a preferred example may be further configured to: the limiting rod is provided with two convex blocks which are abutted to the bearing plate, and the two convex blocks are respectively positioned on two sides of the elastic piece.
Through adopting above-mentioned technical scheme, during interim support, the power accessible lug that the gag lever post received passes to and accepts the board on, through the lug setting, leaves the space of installation for the elastic component.
The present invention in a preferred example may be further configured to: the elastic piece is a first spring, one end of the first spring is fixedly connected with the bearing plate, and the other end of the first spring is fixedly connected with the limiting rod.
Through adopting above-mentioned technical scheme, promote the in-process, the supporting seat is touch to the gag lever post, and the gag lever post rotates to keeping away from the guide slot direction for the gag lever post can pass through the supporting seat, and first spring is stretched, and after through the supporting seat, the elasticity of first spring makes the gag lever post rotate to the guide slot direction and gets back to inside the guide slot.
The present invention in a preferred example may be further configured to: the side face, close to the steel platform, of the supporting seat is provided with a guide face, and the guide face inclines towards the bottom direction of the supporting seat.
Through adopting above-mentioned technical scheme, promote the in-process, the gag lever post touches the supporting seat and gets the spigot surface, and the spigot surface plays the guide effect, makes the gag lever post rotate to keeping away from the guide slot direction more easily.
The present invention in a preferred example may be further configured to: the lifting platform is provided with a guide rod, the guide rod is provided with a guide channel, and the steel strand penetrates through the guide channel.
Through adopting above-mentioned technical scheme, promote or descend the in-process at the lifting mechanism, the steel strand wires of certain length must be reserved at its top, and the steel strand wires of reserving have great influence to the operation of promoting or descending in-process steel strand wires and the locking and the opening of lifting mechanism sky anchor, the anchor of going up, through setting up the direction passageway, make things convenient for the steel strand wires of its top reservation to derive smoothly.
The invention also discloses a construction method of the lifting device, which is suitable for the steel structure platform integral lifting device and comprises the following steps:
s1: building a jig frame for assembling on the first floor below the orthographic projection of the corridor position, and assembling a steel platform on the jig frame;
s2: a lifting platform is arranged at the elevation of the corridor on the building main body, at least 4 groups of lifting platforms are arranged, guide rails are installed on the building main body, and guide grooves of the guide rails face the steel platform;
s3: mounting a lifter, a steel strand and a temporary lifting appliance;
s4: debugging a lifting device, checking whether the steel platform and all temporary measures of the lifting device meet design requirements, starting trial lifting after the error is confirmed, stopping lifting after the steel platform is lifted by 100cm, finely adjusting the elevation of each lifting point of the steel platform to enable the steel platform to be in a horizontal posture, mounting a limiting rod on the steel platform, and positioning one end of the limiting rod in a guide groove of a guide rail;
s5: checking the temporary measures again, starting formal lifting after no abnormality, stopping lifting when the steel platform is lifted to a position 80cm away from the design position, measuring the height difference between each lifting point and the design standard height and making a record, wherein the record is used as the basis for continuously lifting the distance of each lifting point, the lifting speed is reduced, each lifting point reaches the design position through the fine adjustment and inching functions of a computer control system, the docking requirements are met, docking is carried out, and the load of the steel platform is completely transferred to the building main body;
s6: after the corridor operation is completed, the steel platform is separated from the building body, the limiting rod leaves the guide groove, the steel platform is placed by the aid of the lifting device, the steel platform is fixed once after every three floors descend, and then the glass curtain wall is installed by the aid of the steel platform.
Through adopting above-mentioned technical scheme, through steps such as debugging, examination promotion and formal promotion for steel platform's whole promotion is steady, utilizes steel platform installation building subject to be located the glass curtain wall of vestibule below, convenient and practical.
In summary, the invention includes at least one of the following beneficial technical effects:
1. through the setting of guide rail and gag lever post, promote the in-process, the gag lever post slides in the guide slot, and when the steel platform appeared rocking, the steel platform drove the gag lever post, and the lateral wall of guide slot is touched to the gag lever post, and the motion of guide slot restriction gag lever post this moment realizes spacing steel platform, avoids steel platform to take place rocking by a wide margin, improves the security of construction.
2. When the gliding condition appeared in the steel strand wires, the supporting seat was touched in the gag lever post slides in the guide slot, and supporting seat accessible gag lever post provides interim support for the steel platform, further improves the security of construction.
3. Utilize steel platform installation building subject to be located the glass curtain wall of vestibule below, convenient and practical.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a vertical cross-sectional view of the guide rail;
FIG. 4 is a schematic structural view of a steel platform;
FIG. 5 is an enlarged schematic view of portion B of FIG. 4;
fig. 6 is a schematic structural view of the fixing frame.
In the figure, 1, a building main body; 2. a lifter; 3. steel strand wires; 4. a steel platform; 41. an upper frame; 42. a reinforcing rod; 43. a lower frame; 44. a temporary spreader; 45. a fixing frame; 46. clamping the opening; 47. a first rod body; 48. a second rod body; 49. a through hole; 5. lifting the platform; 51. a support frame; 52. a support table; 53. a guide bar; 54. a guide channel; 6. a guide rail; 61. a guide groove; 62. a supporting seat; 63. a guide surface; 64. a human-shaped frame; 65. a connecting plate; 7. a bearing plate; 71. a hinged seat; 72. a limiting rod; 73. a bump; 74. a first spring; 75. a connecting rod; 76. a limiting hole; 8. mounting a plate; 81. a strip-shaped hole; 82. connecting blocks; 83. a slot; 84. a first sleeve; 85. a second sleeve; 86. a jack; 87. inserting a rod; 9. a bolt; 91. a second spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the steel structure platform overall lifting device disclosed in this embodiment includes two building bodies 1 and a steel platform 4, and the steel platform 4 is located between the two building bodies 1. Lifting platforms 5 are fixedly mounted at the tops of the two building bodies 1, the lifting platforms 5 are four groups in total, each lifting platform 5 comprises a support frame 51 and a support table 52, the bottom of each support frame 51 is fixedly connected with the building body 1, and each support table 52 is fixed at the top of each support frame 51. The lifter 2 and the guide rod 53 are fixed on the top surface of the support table 52, the lifter 2 is positioned on one side of the guide rod 53 close to the steel platform 4, the guide rod 53 is vertical to the top surface of the support table 52, and the top of the guide rod 53 is provided with a guide channel 54.
The steel strand 3 is connected to the lifter 2, and the top end of the steel strand 3 passes through the guide channel 54 and then is connected to the lifter 2. The temporary lifting appliance 44 is welded and fixed at the corner of the steel platform 4, the temporary lifting appliance 44 is located right below the lifter 2, and the bottom end of the steel strand 3 is connected with the temporary lifting appliance 44 through a bottom anchor. In the lifting or descending process of the lifter 2, the steel strand 3 with a certain length must be reserved at the top of the lifter, and the guide channel 54 is arranged, so that the steel strand 3 reserved at the top can be guided out smoothly.
The lifter 2 is an XY-TS type hydraulic lifter, and the XY-TS type hydraulic lifter has small volume and is convenient to transport. The lifter 2 is connected with a hydraulic pump source system, the hydraulic pump source system provides hydraulic power for the lifter 2, and each lifter 2 is provided with a set of stroke sensor for measuring the lifting displacement synchronism of each lifter 2 in the lifting process.
Referring to fig. 1 and 3, the side surfaces of the two building bodies 1 close to the steel platform 4 are both provided with guide rails 6, the guide rails 6 are installed and fixed on the building bodies 1 through the herringbone frame 64, the guide rails 6 are formed by splicing a plurality of sections of tracks, the end parts of the adjacent tracks are connected through connecting plates 65, and the connecting plates 65 are fixed with the tracks through screws. The guide rails 6 are four in number, the guide rails 6 are arranged along the height direction of the building body 1, and the guide rails 6 are perpendicular to the ground. Guide slot 61 has been seted up to the side that guide rail 6 is close to steel platform 4, and guide slot 61 extends along guide rail 6's length direction, and guide slot 61's cross section is the U type, and the notch of guide slot 61 is towards steel platform 4. The supporting seat 62 is welded and fixed in the guide groove 61, the supporting seat 62 is provided with a plurality of supporting seats 62, the supporting seats 62 are arranged in the guide groove 61 at intervals, and the supporting seats 62 are arranged along the extending direction of the guide groove 61. The side of the support base 62 close to the steel platform 4 is provided with a guide surface 63, and the guide surface 63 is arranged from the side of the support base 62 close to the steel platform 4 to the bottom surface of the support base 62 in an inclined and downward manner.
Referring to fig. 1 and 4, the steel platform 4 includes an upper frame 41, a reinforcing rod 42, and a lower frame 43, the upper frame 41 and the lower frame 43 are disposed in parallel, the upper frame 41 and the lower frame 43 are fixedly connected, both ends of the reinforcing rod 42 are fixedly connected to the upper frame 41 and the lower frame 43, respectively, the reinforcing rod 42 is disposed in an inclined manner, and a temporary hanger 44 is fixed to the upper frame 41.
The bottom surface of the lower frame 43 is provided with a bearing plate 7 at a position close to the building body 1, the bearing plate 7 is a rectangular steel plate, and one side of the bearing plate 7 far away from the steel platform 4 is rotatably connected with the lower frame 43 through a hinge. The bottom surface welded fastening of accepting board 7 has articulated seat 71, and articulated on the articulated seat 71 have gag lever post 72, and gag lever post 72 is square pole, and the one end that gag lever post 72 kept away from articulated seat 71 is stretched into in guide slot 61, gag lever post 72 and guide slot 61 sliding connection, and gag lever post 72 can contact with supporting seat 62 when sliding in guide slot 61. When the limiting rod 72 slides in the guide groove 61, a first spring 74 is arranged on the side surface of the limiting rod 72 close to the bearing plate 7, one end of the first spring 74 is fixedly connected with the bearing plate 7, and the other end is fixedly connected with the limiting rod 72.
In the lifting process, the limit rod 72 touches the supporting seat 62, the limit rod 72 rotates towards the direction away from the guide groove 61, so that the limit rod 72 can pass through the supporting seat 62, the first spring 74 is stretched, and after passing through the supporting seat 62, the elastic force of the first spring 74 enables the limit rod 72 to rotate towards the direction of the guide groove 61 and return to the inside of the guide groove 61.
In the lifting process, the limiting rod 72 slides in the guide groove 61, when the steel platform 4 shakes, the steel platform 4 drives the limiting rod 72, the limiting rod 72 touches the side wall of the guide groove 61, the guide groove 61 limits the movement of the limiting rod 72 at the moment, the steel platform 4 is limited, and the steel platform 4 is prevented from shaking greatly. In the lifting process, the limit rod 72 touches the supporting seat 62, the limit rod 72 rotates towards the direction far away from the guide groove 61, the first spring 74 is stretched, after passing through the supporting seat 62, the elastic force of the first spring 74 enables the limit rod 72 to rotate towards the direction of the guide groove 61 and return to the inside of the guide groove 61, and the limit rod 72 can smoothly pass through the supporting seat 62. When the steel strand 3 has a sliding condition, the limiting rod 72 slides downwards in the guide groove 61 to touch the supporting seat 62, and the supporting seat 62 can provide temporary support for the steel platform 4 through the limiting rod 72, so that the construction safety is further improved.
The limiting rod 72 is fixed with two lugs 73, the two lugs 73 are respectively positioned at two sides of the first spring 74, and the lugs 73 are contacted with the bearing plate 7. When the temporary support is carried out, the force applied to the limiting rod 72 can be transmitted to the bearing plate 7 through the projection 73, and the projection 73 is arranged to leave a mounting space for the first spring 74 and prevent the limiting rod 72 from directly crushing the first spring 74.
Referring to fig. 4 and 5, a connecting rod 75 is disposed on a side surface of the bearing plate 7 facing away from the hinge seat 71, the connecting rod 75 is a square rod, and a bottom end of the connecting rod 75 is hinged to the bearing plate 7. Be fixed with mounting panel 8 on the anchor strut 42, mounting panel 8 is located the top of accepting board 7, has seted up bar hole 81 on the mounting panel 8, and bar hole 81 and with bar hole 81 sliding connection are passed on the top of connecting rod 75.
Connecting blocks 82 are arranged on two sides of the strip-shaped hole 81, a plug pin 9 is connected onto one connecting block 82 in a sliding mode, a slot 83 is formed in the other connecting block 82, and the end portion of the plug pin 9 is in matched insertion with the slot 83. The connecting rod 75 is provided with a limiting hole 76, and the bolt 9 penetrates through the limiting hole 76. The bolt 9 is sleeved with a second spring 91, one end of the second spring 91 is fixedly connected with the connecting block 82, and the other end of the second spring 91 is fixedly connected with the bolt 9.
The bolt 9 is inserted into the limiting hole 76, the connecting rod 75 is fixed in the connecting length between the mounting plate 8 and the bearing plate 7, and the bearing plate 7 cannot rotate, so that the bearing plate 7 is leaned against the steel platform 4. The pin rod of the bolt 9 is connected with the connecting block 82 in a sliding mode, the bolt 9 is pulled out, the bolt 9 leaves the limiting hole 76, the bearing plate 7 can rotate downwards, the limiting rod 72 is driven to leave the guide groove 61, and the steel platform 4 is convenient to place downwards.
Referring to fig. 4 and 6, a fixing frame 45 is disposed between the upper frame 41 and the lower frame 43, the fixing frame 45 is located at an end position of the upper frame 41 close to the building body 1, a clamping opening 46 is formed in a side surface of the fixing frame 45 close to the building body 1, and the clamping opening 46 is in fit insertion connection with a floor slab of the building body 1. The side of fixed frame 45 deviating from to press from both sides mouth 46 is fixed with first body of rod 47 and second body of rod 48, first body of rod 47 and second body of rod 48 parallel arrangement, and first body of rod 47 is located the below of second body of rod 48, has all seted up through-hole 49 on first body of rod 47 and the second body of rod 48, and first body of rod 47 and second body of rod 48 are square pole, and the figure of through-hole 49 is two on every first body of rod 47, the second body of rod 48.
The bottom surface of the mounting plate 8 is fixed with two first sleeves 84, the two first sleeves 84 are respectively located at two sides of the strip-shaped hole 81, the first rod body 47 is sleeved with the first sleeves 84, and the first rod body 47 is connected with the first sleeves 84 in a sliding mode. The upper frame 41 is fixed with a second sleeve 85 by welding, the second sleeve 85 is located above the first sleeve 84, the second rod 48 is sleeved with the second sleeve 85, and the second rod 48 is slidably connected with the second sleeve 85. The first sleeve 84 and the second sleeve 85 are both provided with a jack 86, and a plug rod 87 is inserted into the jack 86.
The bottom end of the insertion rod 87 can pass through the mounting plate 8, and the insertion rod 87 passes through the insertion holes 86 of the second sleeve 85 and the first sleeve 84 from top to bottom, and the through holes 49 of the second rod 48 and the first rod 47, so that the first rod 47 and the first sleeve 84 are fixed, and the second rod 48 and the second sleeve 85 are fixed, thereby fixing the fixing frame 45 on the steel platform 4. The inserting rod 87 is pulled out, the fixing frame 45 can slide towards the building main body 1, the clamping opening 46 of the fixing frame 45 is inserted into the floor slab of the building main body 1, then the fixing frame 45 and the steel platform 4 are fixed, and the steel platform 4 is fixed on the building main body 1, so that the convenience and the rapidness are realized.
The embodiment also discloses a construction method of the lifting device, which is suitable for the steel structure platform integral lifting device and comprises the following steps:
s1: and building a jig frame for assembling on the first floor below the orthographic projection of the corridor position, and assembling the steel platform 4 on the jig frame.
S2: building body 1 goes up the elevation department of vestibule and sets up promotion platform 5, installs guide rail 6 on building body 1, and guide rail 6's guide slot 61 is towards steel platform 4.
S3: and (3) installing the lifter 2, the steel strand 3 and the temporary lifting appliance 44, wherein the top end of the steel strand 3 passes through the guide channel 54 and then is connected with the lifter 2, and the bottom end of the steel strand 3 is connected with the temporary lifting appliance 44.
S4: debugging the lifting device, checking whether the temporary measures of the lifting device meet the design requirements, wherein the temporary measures comprise fixing structures of the lifting platform 5, the upper lifting point lifter 2 and the lower lifting point temporary lifting appliance 44. After the error is confirmed, trial lifting is started, and the steel platform 4 is loaded step by step according to the sequence of 20%, 40%, 60%, 70%, 80%, 90%, 95% and 100% of the designed load until the steel platform is separated from the assembly jig frame. After the steel platform 4 is lifted by 100cm, the lifting is suspended, the elevation of each lifting point of the steel platform 4 is finely adjusted, so that the steel platform 4 is in a horizontal posture, and the steel platform is kept still for 4-12 hours.
The stopper rod 72 is mounted on the receiving plate 7, the receiving plate 7 is mounted on the lower frame 43, and the mounting plate 8 is fixed to the reinforcing rod 42. The top end of the connecting rod 75 penetrates through the strip-shaped hole 81, the bolt 9 penetrates through the limiting hole 76 and is inserted into the slot 83, so that the bottom surfaces of the bearing plate 7 and the lower frame 43 are attached, and one end, far away from the hinge seat 71, of the limiting rod 72 extends into the guide groove 61.
S5: and (3) formally lifting, when the steel platform 4 is lifted to a distance of 80cm from the design position, suspending lifting, measuring the height difference between each lifting point and the design standard height, recording the height difference, serving as a basis for continuously lifting the distance of each lifting point, reducing the lifting speed, and enabling each lifting point to reach the design position through the functions of fine adjustment and inching of a computer control system so as to meet the butt joint requirement and realize butt joint.
And sequentially unloading in a grading manner according to the sequence of 95%, 90%, 80%, 70%, 60%, 50%, 40% and 20% of the designed load until the steel strand 3 is loosened, and completely transferring the load of the steel platform 4 to the building main body 1.
S6: after the corridor operation is finished, the steel strand 3 is in a slight tensioning state by pre-lifting through the lifter 2. The steel platform 4 and the building main body 1 are disassembled, and the load of the steel platform 4 is transferred to the steel strand 3. The steel platform 4 is first lifted a distance such that the distance between the stop bar 72 and the lower support seat 62 is sufficient to allow the stop bar 72 to leave the guide groove 61. Then the bolt 9 is pulled out, the bolt 9 leaves the limiting hole 76, the bearing plate 7 rotates downwards, the limiting rod 72 swings away from the guide groove 61 along with the bearing plate 7, and the steel platform 4 is lowered by the lifting device. The steel platform 4 is fixed once after each three-layer descending, and then the glass curtain wall is installed by the steel platform 4.
The implementation principle of the embodiment is as follows: in the lifting process, the limiting rod 72 slides in the guide groove 61, when the steel platform 4 shakes, the steel platform 4 drives the limiting rod 72, the limiting rod 72 touches the side wall of the guide groove 61, the guide groove 61 limits the movement of the limiting rod 72 at the moment, the steel platform 4 is limited, and the steel platform 4 is prevented from shaking greatly. When the condition of sliding appeared in steel strand 3, the gag lever post 72 runs down in guide slot 61 and touches supporting seat 62, and supporting seat 62 accessible gag lever post 72 provides interim support for steel platform 4, further improves the security of construction, and when fixed steel platform 4, supporting seat 62 can provide supplementary support simultaneously.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides a steel construction platform integral lifting device, includes two building subject (1) and steel platform (4), steel platform (4) are located between two building subject (1), are equipped with interim hoist (44) on steel platform (4), all are equipped with on two building subject (1) and promote platform (5), be equipped with on promoting platform (5) and promote ware (2), be connected with steel strand wires (3) on promote ware (2), the one end and interim hoist (44) connection that promote ware (2) were kept away from in steel strand wires (3), its characterized in that: two building main body (1) is provided with a guide rail (6), the guide rail (6) is arranged along the height direction of the building main body (1), the side surface of the guide rail (6) close to the steel platform (4) is provided with a guide groove (61), the guide groove (61) is arranged along the length direction of the guide rail (6), the steel platform (4) is provided with a limiting rod (72), one end of the limiting rod (72) far away from the steel platform (4) is connected with the guide groove (61) in a sliding way, the guide groove (61) is internally fixed with a support seat (62), the support seat (62) is provided with a plurality of support seats (62) which are arranged in the guide groove (61) at intervals, the plurality of support seats (62) are arranged along the extending direction of the guide groove (61), the steel platform (4) is provided with a hinged seat (71), the limiting rod (72) is hinged with the hinged seat (71), the limiting rod (72) is provided with an elastic piece which enables the limiting rod (72) to rotate towards, be equipped with on steel platform (4) and accept board (7), it is articulated to accept one side and steel platform (4) that guide rail (6) were kept away from in board (7), articulated seat (71) are fixed on accepting board (7), and the surface of accepting board (7) and deviating from articulated seat (71) is equipped with connecting rod (75), the bottom of connecting rod (75) with accept board (7) articulated, be fixed with mounting panel (8) on steel platform (4), be equipped with bar hole (81) on mounting panel (8), the top of connecting rod (75) is passed bar hole (81) and with bar hole (81) sliding connection, is equipped with the mounting that is used for fixed connection pole (75) on mounting panel (8).
2. The steel structure platform integral lifting device of claim 1, which is characterized in that: be equipped with connecting block (82) on mounting panel (8), connecting block (82) are located the both sides of bar hole (81), be equipped with spacing hole (76) on connecting rod (75), the mounting is bolt (9), bolt (9) and connecting block (82) sliding connection, bolt (9) are worn to locate spacing hole (76).
3. The steel structure platform integral lifting device of claim 1, which is characterized in that: the limiting rod (72) is provided with two convex blocks (73), the convex blocks (73) are abutted to the bearing plate (7), and the two convex blocks (73) are respectively positioned on two sides of the elastic piece.
4. The steel structure platform integral lifting device of claim 1, which is characterized in that: the elastic piece is a first spring (74), one end of the first spring (74) is fixedly connected with the bearing plate (7), and the other end of the first spring (74) is fixedly connected with the limiting rod (72).
5. The steel structure platform integral lifting device of claim 1, which is characterized in that: the side face, close to the steel platform (4), of the supporting seat (62) is provided with a guide face (63), and the guide face (63) inclines towards the bottom direction of the supporting seat (62).
6. The steel structure platform integral lifting device of claim 1, which is characterized in that: the lifting platform (5) is provided with a guide rod (53), the guide rod (53) is provided with a guide channel (54), and the steel strand (3) penetrates through the guide channel (54).
7. A construction method of a lifting device is characterized in that the construction method is suitable for the steel structure platform integral lifting device of any one of claims 1 to 6, and comprises the following steps:
s1: building a jig frame for assembling on the first floor below the orthographic projection of the corridor position, and assembling a steel platform (4) on the jig frame;
s2: a lifting platform (5) is arranged at the elevation of a corridor on the building main body (1), a guide rail (6) is installed on the building main body (1), and a guide groove (61) of the guide rail (6) faces the steel platform (4);
s3: mounting a lifter (2), a steel strand (3) and a temporary lifting appliance (44);
s4: debugging a lifting device, checking whether the temporary measures of the lifting device meet the design requirements, starting trial lifting after the temporary measures are confirmed to be correct, stopping lifting after the steel platform (4) is lifted by 100cm, finely adjusting the elevation of each lifting point of the steel platform (4) to enable the steel platform (4) to be in a horizontal posture, installing a limiting rod (72) on the steel platform (4), and positioning one end of the limiting rod (72) in a guide groove (61) of a guide rail (6);
s5: checking the temporary measures again, starting formal lifting after no abnormality occurs, stopping lifting when the steel platform (4) is lifted to a position 80cm away from the design position, measuring the height difference between each lifting point and the design standard height and recording the height difference to serve as the basis for continuously lifting the distance of each lifting point, reducing the lifting speed, enabling each lifting point to reach the design position through the fine adjustment and inching functions of a computer control system, meeting the butt joint requirement and butting, and completely transferring the load of the steel platform (4) to the building main body (1);
s6: after corridor operation is completed, the steel platform (4) is separated from the building body (1), the limiting rod (72) is separated from the guide groove (61), the steel platform (4) is placed down by using a lifting device, the steel platform (4) is fixed once after every three floors fall, and then the steel platform (4) is used for installing the glass curtain wall.
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| CN112623933B (en) * | 2020-12-09 | 2021-10-08 | 中建八局第二建设有限公司 | High-altitude large-span supporting platform and construction method thereof |
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| CN107445084A (en) * | 2017-09-22 | 2017-12-08 | 中国建筑第二工程局有限公司 | Large-scale vestibule steel structure hoisting instrument and hoisting |
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Address after: Room 708, Block 3, No. 26, Longbao West Road, Chancheng District, Foshan City, Guangdong Province, 528000 (Residence declaration) Patentee after: Guangdong intercontinental Construction Engineering Group Co.,Ltd. Address before: 528000 room 708, block 3, No. 26, Longbao West Road, Chancheng District, Foshan City, Guangdong Province Patentee before: Guangdong intercontinental Steel Structure Co.,Ltd. |