CN211446612U - Operating platform for steel box girder aerial work - Google Patents

Operating platform for steel box girder aerial work Download PDF

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Publication number
CN211446612U
CN211446612U CN201921851749.1U CN201921851749U CN211446612U CN 211446612 U CN211446612 U CN 211446612U CN 201921851749 U CN201921851749 U CN 201921851749U CN 211446612 U CN211446612 U CN 211446612U
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CN
China
Prior art keywords
box girder
steel box
substructure
superstructure
steel
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Active
Application number
CN201921851749.1U
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Chinese (zh)
Inventor
蔡江红
彭春源
刘玮
刘吉达
陈世文
王欢欢
杨建飞
林婷
解恺
谢磊磊
李溢荣
向海岳
余乃伟
李振权
唐宇培
郑键滨
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Guangzhou Municipal Group Co ltd
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Guangzhou Municipal Group Co ltd
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Priority to CN201921851749.1U priority Critical patent/CN211446612U/en
Application granted granted Critical
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Abstract

The utility model discloses an operation platform for steel box girder high altitude construction, it is including arranging the superstructure at steel box girder upside and arranging the substructure at the steel box girder downside, and the both ends of superstructure fasten with the detachable mode with the both ends of substructure respectively, and the operation district has been arranged to the substructure, and the running gear that two at least steel box girder beam faces removed can be followed to superstructure's downside, has arranged two hoists that are used for hoist and mount substructure in the superstructure. The upper structure is supported on the upper side of the steel box girder through the travelling device, the traffic condition is not influenced, the upper structure is installed on the upper side of the steel box girder, and the lower structure is lifted up through the winch and installed with the upper structure, so that the assembly and disassembly are convenient, and the manufacturing cost can be reduced. The utility model discloses it is rational in infrastructure, but wide application in public road bridge roof beam construction technical field.

Description

Operating platform for steel box girder aerial work
Technical Field
The utility model relates to a public road bridge roof beam construction technical field, in particular to an operation platform for steel box girder high altitude construction.
Background
The highway bridge is built in the construction of an upper-span existing highway, and the steel box girder has better spanning capacity than a reinforced concrete structure under the condition of the same dead weight, so that the girder body is generally designed into the steel box girder. In order to facilitate the installation and construction of the steel box girder, most projects adopt a bridge girder erection machine or an automobile crane to carry out sectional hoisting installation, and then integral welding and anticorrosive coating are carried out. The method for installing and constructing the beam body of the newly-built bridge spanning the existing road mainly comprises a turning construction method and a support method, wherein the turning construction method is high in manufacturing cost, low in construction speed and high in technical difficulty, and the support method needs to seal existing traffic and has the defect of high potential safety hazard.
SUMMERY OF THE UTILITY MODEL
For solving above-mentioned technical problem, do not influence the traffic, install and remove the convenience, the utility model discloses the technical scheme who adopts as follows:
the utility model provides an operation platform for steel box girder high altitude construction, it is including arranging the superstructure at steel box girder upside and arranging the substructure at the steel box girder downside, the both ends of superstructure fasten with the detachable mode with the both ends of substructure respectively, the operation district has been arranged to the substructure, the running gear that two at least can follow steel box girder beam face and remove has been arranged to the downside of superstructure, two hoists that are used for hoist and mount substructure have been arranged to the superstructure in.
Further, at least two upper lifting lugs are arranged on the front side and the rear side of the upper structure respectively, and steel wire ropes used for being fixed with the steel box girder are arranged on the upper lifting lugs.
Furthermore, guide pulleys are respectively arranged at two ends of the upper structure, the two guide pulleys respectively correspond to the two winches, and the winches are provided with steel cables which bypass the corresponding guide pulleys and are used for hoisting the lower structure.
Further, the lower structure is arranged with two positioning pulleys.
Furthermore, two ends of the upper structure are respectively fastened with two ends of the lower structure through bolts.
Further, the superstructure comprises two upper side segments and at least one upper middle segment, the upper middle segment is arranged between the two upper side segments in series, and the upper side segments and the adjacent upper middle segments are fastened through bolts.
Further, the substructure comprises two lower side segments and at least one lower middle segment, the lower middle segments are arranged in series between the two lower side segments, the lower side segments are fastened with the adjacent lower middle segments through bolts, one end of each lower side segment is provided with a connecting segment for mounting with the corresponding upper side segment, and the connecting segments are fastened with the corresponding upper side segments through bolts.
Further, the walking device comprises electric wheels and universal wheels.
Further, the walking device comprises a brake.
Further, at least one of a wood board, an iron sheet and a fireproof cloth is laid in the operation area.
Has the advantages that: the upper structure is supported on the upper side of the steel box girder through the travelling device, the traffic condition of the girder surface of the steel box girder is not influenced, the upper structure can move along the girder surface of the steel box girder, and after the upper structure is installed on the upper side of the steel box girder, the lower structure is lifted up through the winch to be installed with the upper structure, so that the upper structure is convenient to assemble and disassemble, and the manufacturing cost can be reduced. The utility model discloses it is rational in infrastructure, but wide application in public road bridge roof beam construction technical field.
Drawings
FIG. 1 is a front view of an operating platform mounted on the rear structure of a steel box girder;
FIG. 2 is a top view of the operation platform;
FIG. 3 is a side view of the operation platform;
FIG. 4 is a structural view of the traveling apparatus in a right side view;
FIG. 5 is a front view of the superstructure;
fig. 6 is a front view of the lower structure.
Detailed Description
The present invention will be further described with reference to fig. 1 to 6.
The utility model relates to an operation platform for steel box girder high altitude construction has effectively solved the problem of steel box girder road-crossing installation construction under the condition of not sealing the traffic, and the construction is high-efficient and economy. The operation platform comprises an upper structure 11 arranged on the upper side of the steel box girder and a lower structure 12 arranged on the lower side of the steel box girder, at least two walking devices 13 capable of moving along the girder surface of the steel box girder are arranged on the lower side of the upper structure 11, and the walking devices 13 have the supporting function of the upper structure 11 on the girder surface of the steel box girder. The number of running gear 13 can be designed as two, respectively arranged close to the two ends of the superstructure 11. Through running gear, can carry out whole welding construction of striding, the construction is nimble, can remove to next section after waiting that one section welding is accomplished, conveniently strides the welding entirely.
The two ends of the upper structure 11 are fastened in a removable manner to the two ends of the lower structure 12, respectively, for example: both ends of the upper structure 11 are fastened to both ends of the lower structure 12 by bolts, respectively.
Two winches 17 for hoisting the lower structure 12 are arranged in the upper structure 11, guide pulleys 16 are arranged at two ends of the upper structure 11 respectively, the two guide pulleys 16 correspond to the two winches 17 respectively, and the winches 17 are arranged with steel cables which bypass the corresponding guide pulleys 16 and are used for hoisting the lower structure 12. During construction, the crane lifts the upper structure 11 to be mounted on the beam surface of the steel box girder, and the winch 17 lifts the lower structure 12 to the joint with the upper structure 11 through the steel cable.
At least two upper lifting lugs 18 are respectively arranged on the front side and the rear side of the upper structure 11, steel wire ropes 19 used for being fixed with the steel box girder are arranged on the upper lifting lugs 18, a girder face lifting lug 26 is welded on the girder face of the steel box girder, and two ends of each steel wire rope 19 are respectively fixed on the corresponding upper lifting lug 18 and the corresponding girder face lifting lug 26. After the upper structure 11 is hoisted to the beam surface of the steel box girder, the position of the upper structure is fixed through a steel wire rope 19, and the stability of the upper structure 11 is improved.
Two positioning pulleys 20 are arranged on the lower structure 12, and in the lifting process of the lower structure 12, the two positioning pulleys 20 roll along two sides of the steel box girder respectively, so that the lower structure 12 is prevented from tilting in the moving process, and the stability of the lower structure 12 is improved.
The substructure 12 is provided with a working area, which is paved with at least one of a wood board, an iron sheet, and a fire-proof cloth. In order to meet the requirements of personnel on bottom plate welding construction and anticorrosive coating, the operation area can be simultaneously paved with the wood boards, the iron sheets and the fireproof cloth, and when the bottom plate welding construction is carried out, the fireproof cloth can prevent welding sparks from falling on the road surface below, so that the influence on normal running of vehicles is avoided, the existing road traffic is not influenced, and the safety and the reliability are realized.
The traveling device 13 comprises electric wheels 14 and universal wheels 15, the electric wheels 14 are small constant-speed trackless wheels, the universal wheels 15 play a role in adjusting traveling directions, and the polyurethane super-heavy wheels are selected as the universal wheels 15. In addition, the running gear 13 includes a brake.
The superstructure 11 comprises two upper side segments 21 and at least one upper middle segment 22, the upper middle segment 22 is arranged in series between the two upper side segments 21, adjacent two upper middle segments 22 are fastened by bolts, and the upper side segments 21 and the adjacent upper middle segments 22 are fastened by bolts. The number of the upper and middle sections 22 can be adjusted according to the width of the steel box girder, so that the operation platform is designed to be combined into a general structure.
The substructure 12 comprises two lower sections 23 and at least one lower middle section 24, the lower middle section 24 is arranged in series between the two lower sections 23, the two adjacent lower middle sections 24 are fastened by bolts, the lower sections 23 and the adjacent lower middle sections 24 are fastened by bolts, one end of the lower section 23 is arranged with a connecting section 25 for mounting with the corresponding upper section 21, the connecting section 25 is fastened with the corresponding upper section 21 by bolts, and the connecting section 25 is fastened with the corresponding lower section 23 by bolts.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. The utility model provides an operation platform for steel case roof beam high altitude construction which characterized in that: including arranging superstructure (11) and the substructure (12) of arranging in the steel box girder downside on the steel box girder upside, the both ends of superstructure (11) are fastened with the both ends of substructure (12) with the detachable mode respectively, the operation area has been arranged to substructure (12), at least two running gear (13) that can follow the steel box girder beam face and remove have been arranged to the downside of superstructure (11), arrange two hoist engine (17) that are used for hoist and mount substructure (12) in superstructure (11).
2. The operating platform for the steel box girder aloft work according to claim 1, wherein: at least two upper lifting lugs (18) are respectively arranged on the front side and the rear side of the upper structure (11), and steel wire ropes (19) used for being fixed with the steel box girder are arranged on the upper lifting lugs (18).
3. The operating platform for the steel box girder aloft work according to claim 1, wherein: guide pulleys (16) are respectively arranged at two ends of the upper structure (11), the two guide pulleys (16) respectively correspond to the two winches (17), and the winches (17) are provided with steel cables which are wound around the corresponding guide pulleys (16) and used for hoisting the lower structure (12).
4. The operating platform for the steel box girder aloft work according to claim 1, wherein: the substructure (12) is arranged with two positioning pulleys (20).
5. The operating platform for the steel box girder aloft work according to claim 1, wherein: two ends of the upper structure (11) are respectively fastened with two ends of the lower structure (12) through bolts.
6. The operation platform for the steel box girder high altitude construction according to claim 1 or 5, characterized in that: the superstructure (11) comprises two upper side sections (21) and at least one upper middle section (22), the upper middle section (22) is arranged between the two upper side sections (21) in series, and the upper side sections (21) and the adjacent upper middle section (22) are fastened through bolts.
7. The operation platform for the steel box girder high altitude construction of claim 6, characterized in that: the substructure (12) comprises two lower sections (23) and at least one lower middle section (24), the lower middle section (24) is arranged in series between the two lower sections (23), the lower sections (23) and the adjacent lower middle section (24) are fastened by bolts, one end of the lower section (23) is provided with a connecting section (25) for mounting with the corresponding upper section (21), and the connecting section (25) is fastened with the corresponding upper section (21) by bolts.
8. The operating platform for the steel box girder aloft work according to claim 1, wherein: the walking device (13) comprises an electric wheel (14) and a universal wheel (15).
9. The operation platform for the steel box girder high altitude construction according to claim 1 or 8, characterized in that: the walking device (13) comprises a brake.
10. The operating platform for the steel box girder aloft work according to claim 1, wherein: at least one of a wood board, an iron sheet and fireproof cloth is laid in the operation area.
CN201921851749.1U 2019-10-30 2019-10-30 Operating platform for steel box girder aerial work Active CN211446612U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921851749.1U CN211446612U (en) 2019-10-30 2019-10-30 Operating platform for steel box girder aerial work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921851749.1U CN211446612U (en) 2019-10-30 2019-10-30 Operating platform for steel box girder aerial work

Publications (1)

Publication Number Publication Date
CN211446612U true CN211446612U (en) 2020-09-08

Family

ID=72304264

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921851749.1U Active CN211446612U (en) 2019-10-30 2019-10-30 Operating platform for steel box girder aerial work

Country Status (1)

Country Link
CN (1) CN211446612U (en)

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