CN215887940U - Self-suspension type prestress tension construction platform - Google Patents

Self-suspension type prestress tension construction platform Download PDF

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Publication number
CN215887940U
CN215887940U CN202121861735.5U CN202121861735U CN215887940U CN 215887940 U CN215887940 U CN 215887940U CN 202121861735 U CN202121861735 U CN 202121861735U CN 215887940 U CN215887940 U CN 215887940U
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China
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limit
platform
self
limiting support
operation platform
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CN202121861735.5U
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Chinese (zh)
Inventor
刘望奇
伍辉
夏漫力
钟龙
魏伟
陈庚
汤敏
吕凯
罗建斌
熊青鹏
张亮
徐富强
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Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd
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Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd
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Abstract

The utility model discloses a self-suspension type prestress tensioning construction platform which comprises an operation platform, a chain block mounting structure and a suspension structure, wherein the suspension structure is arranged on the rear side of the operation platform, and the chain block mounting structure is arranged at the top of the operation platform; the chain block mounting structure comprises a movable cross beam and a lifting hook, and the lifting hook is arranged in the middle of the movable cross beam; the suspension structure comprises a first limiting support, a second limiting support and a bracket, the first limiting support is arranged at the rear side of the operation platform, the second limiting support is arranged at the rear side of the first limiting support, and a stop block mounting part is formed between the first limiting support and the second limiting support. When the lifting device is lifted, the stop block mounting part corresponds to the stop block on the cover beam, the mounting of the operation platform can be realized under the limiting action of the first limiting support, the second limiting support and the bracket, the structure of the operation platform is simple, repeated utilization can be realized, and the construction cost is saved.

Description

Self-suspension type prestress tension construction platform
Technical Field
The utility model relates to the field of bridge construction, in particular to a self-suspension type prestress tensioning construction platform.
Background
At present to the no fixed bolster's of bottom high altitude prestressing force stretch-draw construction, what often adopted is that the operation cage is suspended in midair from the bridge floor directly carries out the stretch-draw operation, it is including the crossbeam, and a support, pre-buried steel ring, lifting hook and chain block, pre-buried steel ring bottom is buried underground in the roof beam body foundation of encorbelmenting, the support setting is on the roof beam body foundation of encorbelmenting, the support articulates in the crossbeam, the crossbeam is close to the one end and the lifting hook of jack and is connected, the lower extreme of lifting hook hangs prestressing force and stretches the jack, the crossbeam keeps away from the one end of jack and is connected with chain block, chain block's steel cable is connected on pre-buried steel ring. From this, current stretch-draw construction needs pre-buried steel ring in the foundation of encorbelmenting at the roof beam body, and the steel cable that comes the adversary to pull and protect is fixed, and the setting of pre-buried steel ring leads to causing the influence to the appearance quality of component, and the bent cap is pour and is accomplished to the frame roof beam interval time long, need properly protect the built-in fitting at this in-process, otherwise the security reduces, and crossbeam occupation space is big simultaneously, influences follow-up frame roof beam operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of high-altitude prestress tensioning construction in the prior art, and provides a self-suspension prestress tensioning construction platform which is simple to manufacture and install, does not influence other construction operations, is high in safety and can be recycled.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a self-suspension type prestress tension construction platform comprises an operation platform, a chain block mounting structure and a suspension structure, wherein the suspension structure is arranged on the rear side of the operation platform, and the chain block mounting structure is arranged at the top of the operation platform;
the chain block mounting structure comprises a movable cross beam and a lifting hook, the movable cross beam is in sliding fit with the top of the operation platform from left to right, and the lifting hook is arranged in the middle of the movable cross beam;
the suspended structure comprises a first limiting support, a second limiting support and a bracket, the first limiting support is arranged on the rear side of the operation platform, the second limiting support is arranged on the rear side of the first limiting support, the first limiting support and a stop block installation part is formed between the second limiting supports, the bracket is arranged on the first limiting support, and the bracket is arranged right above the stop block installation part.
Preferably, first spacing support includes a plurality of first spacing crossbeams that set up from top to bottom, first spacing crossbeam is established operation platform's rear side, the bracket with the spacing support of second is located respectively first spacing crossbeam's upper and lower both sides.
Preferably, the spacing support of second includes two spacing crossbeams of second and spacing steel pipe, two spacing crossbeam parallel arrangement of second and two the head end of the spacing crossbeam of second weld respectively in operation platform's the left and right sides, two the tail end of the spacing crossbeam of second to operation platform's rear side is extended, the both ends of spacing steel pipe are connected two through the staple bolt respectively the tail end of the spacing crossbeam of second, first spacing crossbeam, two the spacing crossbeam of second reaches form between the spacing steel pipe the dog installation department.
Preferably, the suspension structure further comprises a wedge block, and the wedge block is detachably arranged on one side, close to the limiting steel pipe, of the block mounting part.
Preferably, chain block mounting structure still includes two slide rails and two pulleys, two slide rail parallel arrangement is in operation platform's top, two the pulley is installed respectively the both ends of movable cross beam, two the pulley respectively with two slide rail sliding fit.
Preferably, the operation platform comprises a top frame, a plurality of upright posts and a bottom plate which are arranged up and down, and the chain block mounting structure is arranged on the top frame.
Preferably, the bottom plate comprises a rectangular bottom frame surrounded by four bottom beams, and a plurality of wood boards are alternately laid on the bottom frame in a front-back manner.
Preferably, the operation platform further comprises a reinforcing cross beam, the reinforcing cross beam is horizontally arranged, and two ends of the reinforcing cross beam are respectively welded with the two adjacent stand columns.
Preferably, the operation platform still includes a plurality of reinforcing bars, reinforcing bar level sets up, and is a plurality of alternate welding is adjacent two that set up about the reinforcing bar the stand welding.
Preferably, the underframe further comprises a plurality of angle steel cross beams arranged on the left and right sides, two ends of each angle steel cross beam are welded with the two bottom beams arranged in parallel, and the wood boards are arranged above the angle steel cross beams.
The utility model has the beneficial effects that: the stop block mounting part is formed between the first limiting support and the second limiting support and is used for corresponding to the stop block on the cover beam during hoisting, the mounting of the operation platform can be realized under the limiting action of the first limiting support, the second limiting support and the bracket, the structure of the operation platform is simple, the repeated use can be realized, and the construction cost is saved.
Drawings
The drawings are further illustrative of the utility model and the content of the drawings does not constitute any limitation of the utility model.
FIG. 1 is a schematic overall structure of one embodiment of the present invention;
FIG. 2 is a schematic view of another angle of the overall structure of one embodiment of the present invention;
FIG. 3 is a schematic side view of one embodiment of the present invention;
fig. 4 is a schematic bottom structure of one embodiment of the present invention.
Wherein: the device comprises a working platform 1, a chain block mounting structure 2, a suspension structure 3, a movable cross beam 21, a lifting hook 22, a bracket 33, a first limit cross beam 311, a second limit cross beam 321, a limit steel pipe 322, a wedge 35, a slide rail 231, a pulley 232, a top frame 11, an upright post 12, a bottom plate 13, a bottom beam 131, a wood plate 132, a reinforcing cross beam 121, reinforcing steel bars 122, an angle steel cross beam 133, a cover beam 4 and a stop block 41.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
Referring to the attached drawing 1, the self-suspension type prestress tension construction platform of the embodiment comprises an operation platform 1, a chain block mounting structure 2 and a suspension structure 3, wherein the suspension structure 3 is arranged on the rear side of the operation platform 1, and the chain block mounting structure 2 is arranged at the top of the operation platform 1;
the chain block mounting structure 2 comprises a movable cross beam 21 and a lifting hook 22, and referring to the attached drawing 2, the movable cross beam 21 is in sliding fit with the top of the operation platform 1 from left to right, and the lifting hook 22 is arranged in the middle of the movable cross beam 21;
referring to fig. 3 and 4, the suspension structure 3 comprises a first limiting support, a second limiting support and a bracket 33, the first limiting support is arranged at the rear side of the operation platform 1, the second limiting support is arranged at the rear side of the first limiting support, a stop block 41 mounting part is formed between the first limiting support and the second limiting support, the bracket 33 is arranged on the first limiting support, and the bracket 33 is positioned right above the stop block 41 mounting part.
The construction platform of the embodiment is simple to manufacture and can be used for multiple times, the mounting parts of the check blocks 41 corresponding to the check blocks 41 on the cover beam 4 are arranged on the suspension structure 3, so that the first limiting bracket and the second limiting bracket respectively limit the horizontal position of the operation platform 1 after mounting, and the bracket 33 positioned right above the mounting parts of the check blocks 41 is contacted with the top parts of the check blocks 41, so that the vertical position of the operation platform 1 is limited, the safety and stability of the operation platform 1 are ensured, the mounting and dismounting are convenient, and the subsequent beam erecting operation is not influenced; in the installation process of the construction platform, an operator can assist in reinforcing the bent cap 4, and does not need to enter the operation platform 1 for installation before the operation platform 1 is stably installed, so that the construction is safer and more convenient; in the batch frame beam tensioning construction operation, repeated loading and unloading are not needed, all subsequent batches of tensioning, grouting, anchor sealing, end sealing and other operations can be completed after installation, construction is convenient, the time occupied by hoisting equipment is reduced, and cost is saved.
Preferably, the first limiting bracket comprises two first limiting beams 311 arranged up and down, the first limiting beams 311 are arranged at the rear side of the working platform 1, and the bracket 33 and the second limiting bracket are respectively arranged at the upper side and the lower side of the first limiting beams 311. From this, after the mounting of dog 41 on suspended structure 3 and bent cap 4, two first limiting beam 311 that set up from top to bottom contact with the front side of dog 41 to play limiting displacement, be equipped with two first limiting beam 311 parallel arrangement, increased the area of contact of first limiting support with bent cap 4 dog 41, and saved the material, avoid installation back work platform 1 to take place to rock.
Preferably, the second limiting support comprises two second limiting cross beams 321 and a limiting steel pipe 322, the two second limiting cross beams 321 are arranged in parallel, the head ends of the two second limiting cross beams 321 are welded to the left side and the right side of the operation platform 1 respectively, the tail ends of the two second limiting cross beams 321 extend towards the rear side of the operation platform 1, the two ends of the limiting steel pipe 322 are connected to the tail ends of the two second limiting cross beams 321 through hoops respectively, and a stopper 41 mounting part is formed between the first limiting cross beam 311, the two second limiting cross beams 321 and the limiting steel pipe 322. From this, after the dog 41 installation on suspended structure 3 and bent cap 4, second limit beam 321 is located the left and right sides of dog 41, and spacing steel pipe 322 is located the rear side of dog 41, realizes spacing to suspended structure 3 to the realization is to the installation of work platform 1, and the tail end at two second limit beam 321 is connected through the staple bolt respectively at the both ends of spacing steel pipe 322, need not to link to each other through the welding between spacing steel pipe 322 and the second limit beam 321 from this, convenient to detach.
Preferably, the suspension structure 3 further comprises a wedge 35, and the wedge 35 is detachably disposed on a side of the mounting portion of the stopper 41 near the limiting steel pipe 322. The wedge 35 is used for filling the gap between the limit steel pipe 322 and the stop block 41 of the cover beam 4, the accuracy requirements of the sizes of the second limit cross beam 321 and the limit steel pipe 322 are reduced, the limit of the operation platform 1 is more stable, the suspension structure 3 can be easily separated from the stop block 41 of the cover beam 4 by taking out the wedge 35 during disassembly, and the disassembly is convenient.
Preferably, the chain block mounting structure 2 further includes two slide rails 231 and two pulleys 232, the two slide rails 231 are arranged at the top of the working platform 1 in parallel, the two pulleys 232 are respectively mounted at two ends of the movable beam 21, and the two pulleys 232 are respectively in sliding fit with the two slide rails 231. Therefore, the chain block can be installed on the lifting hook 22 by arranging the pulleys 232 at the two ends of the movable cross beam 21 to be in sliding fit with the sliding rails 231 at the top of the operation platform 1, and after the operation platform 1 is installed, the position of the jack can be controlled by the chain block to complete tensioning, grouting and anchor sealing operations of each hole site.
Preferably, the work platform 1 comprises a top frame 11, a plurality of upright posts 12 and a bottom plate 13 which are arranged up and down, and the chain block mounting structure 2 is arranged on the top frame 11.
Preferably, the bottom plate 13 includes a rectangular bottom frame surrounded by four bottom beams 131, and a plurality of wood boards 132 are laid on the bottom frame at intervals. The bottom frame is paved with the wood boards 132, so that a supporting position is provided for operators entering the operation platform 1 for construction, and the construction safety of the operators is guaranteed; in addition, the wood board 132 reduces the overall weight of the work platform 1, and facilitates hoisting.
Preferably, the work platform 1 further comprises a reinforcing beam 121 and a plurality of reinforcing steel bars 122, the reinforcing beam 121 is horizontally arranged, two ends of the reinforcing beam 121 are respectively welded to two adjacent upright columns 12, the reinforcing steel bars 122 are horizontally arranged, and the reinforcing steel bars 122 are welded to the two adjacent upright columns 12 at intervals. The reinforcing cross beam 121 and the reinforcing steel bars 122 are arranged between the adjacent upright columns 12, so that the stability of the upright columns 12 is improved, the upright columns 12 are kept parallel, and the safety of construction operation is improved.
Preferably, the bottom frame further comprises a plurality of angle steel cross beams 133 arranged on the left and right, two ends of each angle steel cross beam 133 are respectively welded with the two bottom beams 131 arranged in parallel, and the wood boards 132 are arranged above the angle steel cross beams 133. Therefore, the angle steel cross beams 133 are arranged for supporting the wood boards 132, and the safety of construction operation is improved.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. A self-suspension type prestress tension construction platform is characterized by comprising an operation platform, a chain block mounting structure and a suspension structure, wherein the suspension structure is arranged on the rear side of the operation platform, and the chain block mounting structure is arranged at the top of the operation platform;
the chain block mounting structure comprises a movable cross beam and a lifting hook, the movable cross beam is in sliding fit with the top of the operation platform from left to right, and the lifting hook is arranged in the middle of the movable cross beam;
the suspended structure comprises a first limiting support, a second limiting support and a bracket, the first limiting support is arranged on the rear side of the operation platform, the second limiting support is arranged on the rear side of the first limiting support, the first limiting support and a stop block installation part is formed between the second limiting supports, the bracket is arranged on the first limiting support, and the bracket is arranged right above the stop block installation part.
2. The self-suspending prestressed tension construction platform of claim 1, wherein the first limit bracket comprises a plurality of first limit beams arranged up and down, the first limit beams are arranged at the rear side of the operation platform, and the bracket and the second limit bracket are respectively arranged at the upper side and the lower side of the first limit beams.
3. The self-suspended prestressed tension construction platform of claim 2, wherein said second limit bracket comprises two second limit crossbeams and limit steel pipes, said two second limit crossbeams are arranged in parallel and the head ends of said two second limit crossbeams are welded to the left and right sides of said working platform respectively, the tail ends of said two second limit crossbeams extend to the rear side of said working platform, the two ends of said limit steel pipes are connected to the tail ends of said two second limit crossbeams respectively through hoops, and said stop mounting portions are formed among said first limit crossbeams, said two second limit crossbeams and said limit steel pipes.
4. The self-suspending prestressed tension construction platform of claim 1, wherein the suspension structure further comprises a wedge block, and the wedge block is detachably disposed on one side of the block mounting portion close to the limiting steel pipe.
5. The self-suspending pre-stress tensioning construction platform according to claim 1, wherein the chain block mounting structure further comprises two slide rails and two pulleys, the two slide rails are disposed at the top of the working platform in parallel, the two pulleys are respectively mounted at two ends of the movable cross beam, and the two pulleys are respectively in sliding fit with the two slide rails.
6. The self-suspending prestressed tension construction platform of claim 1, wherein the work platform comprises a top frame, a plurality of vertical columns and a bottom plate which are arranged up and down, and the chain block mounting structure is arranged on the top frame.
7. The self-suspending prestressed tension construction platform of claim 6, wherein said bottom plate comprises a rectangular bottom frame surrounded by four bottom beams, and a plurality of wood plates are alternately laid on said bottom frame.
8. The self-suspending prestressed tension construction platform of claim 6, wherein said operation platform further comprises a reinforcing beam, said reinforcing beam is horizontally disposed, and two ends of said reinforcing beam are respectively welded to two adjacent columns.
9. The self-suspending prestressed tension construction platform of claim 6, wherein said operation platform further comprises a plurality of reinforcing bars, said reinforcing bars are horizontally disposed, and a plurality of said reinforcing bars are welded to two adjacent columns at intervals.
10. The self-suspending prestressed tension construction platform of claim 7, wherein said bottom frame further comprises a plurality of angle steel beams disposed on the left and right sides, both ends of said angle steel beams are welded to two said bottom beams disposed in parallel, respectively, and said wooden plate is disposed above said angle steel beams.
CN202121861735.5U 2021-08-10 2021-08-10 Self-suspension type prestress tension construction platform Active CN215887940U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121861735.5U CN215887940U (en) 2021-08-10 2021-08-10 Self-suspension type prestress tension construction platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121861735.5U CN215887940U (en) 2021-08-10 2021-08-10 Self-suspension type prestress tension construction platform

Publications (1)

Publication Number Publication Date
CN215887940U true CN215887940U (en) 2022-02-22

Family

ID=80502354

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121861735.5U Active CN215887940U (en) 2021-08-10 2021-08-10 Self-suspension type prestress tension construction platform

Country Status (1)

Country Link
CN (1) CN215887940U (en)

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