CN214783330U - A liftable construction platform for an up-supported bridge - Google Patents
A liftable construction platform for an up-supported bridge Download PDFInfo
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- CN214783330U CN214783330U CN202121110056.4U CN202121110056U CN214783330U CN 214783330 U CN214783330 U CN 214783330U CN 202121110056 U CN202121110056 U CN 202121110056U CN 214783330 U CN214783330 U CN 214783330U
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Abstract
本实用新型公开了一种上承式桥梁可升降施工平台，包括：两个小车，其位于桥梁面板上且相对设置在桥梁的两侧；两个主桁架，其分别设置在所述两个小车的外侧，任一主桁架竖直向下延伸至桥梁面板的下方，任一主桁架通过移动装置沿桥梁的高度方向与对应的小车滑动连接；横梁，其两端分别与所述两个主桁架的底部固定连接；操作平台，其设置在所述横梁的顶部。本实用新型所述的施工平台以既有的梁体为受力点，在涉水、桥下地基承载力差的环境下仍然能够使用，桥下施工环境及桥底净空高度对其影响较小。
The utility model discloses a liftable construction platform for a top-supported bridge, comprising: two trolleys, which are located on a bridge panel and are oppositely arranged on both sides of the bridge; two main trusses, which are respectively arranged on the two trolleys On the outside of the bridge, any main truss extends vertically downward to the bottom of the bridge deck, and any main truss is slidably connected to the corresponding trolley along the height direction of the bridge through the mobile device; The bottom is fixedly connected; the operation platform is arranged on the top of the beam. The construction platform of the utility model takes the existing beam body as the force point, and can still be used in the environment of wading and poor bearing capacity of the foundation under the bridge, and the construction environment under the bridge and the clearance height of the bridge bottom have little influence on it. .
Description
Technical Field
The utility model relates to an existing bridge construction field. More specifically speaking, the utility model relates to a but, deck bridge lifting construction platform.
Background
After a bridge is operated for a certain period of time, the bridge needs to be maintained to improve the existing condition of the bridge, when a fault occurs on the bottom surface of the bridge, an aerial work construction platform is usually required to perform auxiliary work, and the existing aerial work platform mainly comprises a support, a hanging bracket, a bridge inspection vehicle and the like.
The erection of the bracket is not suitable for wading under the bridge and has high requirement on the ground condition under the bridge; the hanger has a large structure and is complex to install, move and transport; the bridge inspection vehicle has small operation surface, limited construction operation along the vertical direction of the bridge and high use cost. Especially for the top-supported arch bridge and rigid frame bridge, the change of the clearance height under the bridge is large, so a liftable construction platform is urgently needed to move vertically along the bridge, and the construction problems are solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses still another purpose provides a but, the liftable construction platform of formula of holding bridge, it uses existing roof beam body as the stress point, still can use under the poor environment of ground bearing capacity under wading, the bridge, and the under-bridge construction environment and bridge bottom headroom height are less to its influence.
In order to realize according to the utility model discloses a these purposes and other advantages provide a but, hold up formula bridge lifting construction platform, include:
the two trolleys are positioned on the bridge panel and are oppositely arranged on two sides of the bridge;
the two main trusses are respectively arranged at the outer sides of the two trolleys, any one main truss vertically extends downwards to the lower part of the bridge panel, and any one main truss is connected with the corresponding trolley in a sliding manner along the height direction of the bridge through a moving device;
the two ends of the cross beam are respectively and fixedly connected with the bottoms of the two main trusses;
and the operating platform is arranged at the top of the cross beam.
Preferably, the bottom of any trolley is provided with a plurality of rollers, the trolley moves along the length direction of the bridge through the rollers, and a foot brake is arranged on any roller.
Preferably, a balancing weight is fixedly arranged at the top of the trolley.
Preferably, the moving means includes:
the rack is vertically and fixedly arranged on the inner side wall of the main truss;
the gear motor is fixedly arranged on one side of the trolley close to the main truss and is meshed and connected with the rack;
and the power supply is fixedly arranged on the trolley and is electrically connected with the gear motor.
Preferably, the main truss is provided with a limiting block which is positioned at the top of the rack.
Preferably, the cross member includes a plurality of triangular trusses which are continuously arranged in a width direction of the bridge.
Preferably, the protection fence is fixedly arranged at the top of the operating platform along the circumferential direction of the operating platform.
The utility model discloses at least, include following beneficial effect:
1. the construction platform of the utility model takes the existing beam body as the stress point, can still be used in the environment of wading and poor bearing capacity of the foundation under the bridge, and has little influence on the construction environment under the bridge and the clearance height of the bridge bottom;
2. the crossbeam is assembled through the bolt for a plurality of triangle-shaped trusses and forms, and it is little to dismantle back single component structure, light in weight, and the turnover is convenient, and reuse rate is high, and the comprehensive cost is low, and total length can increase and decrease as required, can adapt to different bridge width, and application range is wide.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a deck-type liftable bridge construction platform according to an embodiment of the present invention.
The specification reference numbers indicate:
1. the trolley comprises a trolley body, 101, rollers, 102, a foot brake, 103, a balancing weight, 104, a gear motor, 2, a main truss, 201, a rack, 202, a limiting block, 3, a cross beam, 4, an operation platform, 401, a cross rod, 402, a vertical rod, 5 and a bridge panel.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the utility model provides a but bolster formula bridge lifting construction platform, include:
the two trolleys 1 are positioned on the bridge panel 5 and are oppositely arranged on two sides of the bridge;
the two main trusses 2 are respectively arranged on the outer sides of the two trolleys 1, any one main truss 2 vertically extends downwards to the lower part of a bridge panel 5, and any one main truss 2 is connected with the corresponding trolley 1 in a sliding mode along the height direction of the bridge through a moving device;
two ends of the cross beam 3 are respectively and fixedly connected with the bottoms of the two main trusses 2;
an operation platform 4 arranged on top of said cross beam 3.
In the above technical solution, two trolleys 1 are oppositely arranged on two sides of a bridge and located on a bridge deck 5, two main trusses 2 are respectively arranged on the outer sides of the two trolleys 1, any main truss 2 is vertically arranged and downwardly extends to the lower side of the bridge deck 5, and any main truss 2 is slidably connected with the corresponding trolley 1 along the height direction of the bridge through a moving device, a cross beam 3 is horizontally and fixedly arranged at the bottom of the two main trusses 2, an operating platform 4 is arranged at the top of the cross beam 3, a worker can construct the bottom surface of the bridge on the operating platform 4, the main truss 2 is driven to move up and down along the height direction of the bridge by starting the moving device to meet the requirement of clearance height change construction under the bridge, and the construction platform of the utility model can still be used under the environment of wading water and poor bearing capacity of foundation under the bridge by taking the existing girder as a stress point, the influence of the under-bridge construction environment and the bridge bottom clearance height is small.
In another technical scheme, a plurality of rollers 101 are arranged at the bottom of any trolley 1, the trolley 1 moves along the length direction of the bridge through the rollers 101, and a foot brake 102 is arranged on any roller 101.
In the technical scheme, a plurality of rollers 101 are arranged at the bottom of a trolley 1 to drive the trolley 1 to move, a foot brake 102 is arranged on any roller 101, when the bottom surface of a bridge is constructed, the rollers 101 are firstly locked through the foot brake 102 to fix the trolley 1 on the bridge floor, and the trolley 1 is prevented from overturning and causing accidents in the process that a moving device drives a main truss 2 to move along the height direction of the bridge; when the construction was accomplished, loosen service brake 102 to remove along the length direction of bridge through hoist engine traction trolley 1, thereby drive construction platform and remove to next place that needs to be maintained along the length direction of bridge, construction platform when constructing the position of bridge difference, do not need repeated ann to tear open, can improve work efficiency.
In another technical scheme, a balancing weight 103 is fixedly arranged at the top of the trolley 1.
In this technical scheme, the fixed setting of balancing weight 103 is at the top of dolly 1, and when dolly 1 moved along the length direction of bridge through the hoist engine, the gravity of balancing weight 103 was perpendicular downwards all the time, can prevent that dolly 1 from taking place to overturn at the in-process that moves ahead, causes the incident.
In another aspect, the mobile device includes:
the rack 201 is vertically and fixedly arranged on the inner side wall of the main truss 2;
the gear motor 104 is fixedly arranged on one side of the trolley 1 close to the main truss 2 and is meshed with the rack 201;
and the power supply is fixedly arranged on the trolley 1 and is electrically connected with the gear motor 104.
In this technical scheme, vertical fixed rack 201 that is equipped with on the inside wall of main truss 2, it is connected with the gear motor 104 meshing of fixed setting on dolly 1, the fixed power drive motor that sets up on dolly 1 rotates in order to drive main truss 2 and remove along the direction of height of bridge, direction of rotation through control gear motor 104, can make main truss 2 reciprocate along the direction of height of bridge, thereby it freely goes up and down to drive the direction of height of construction platform along the bridge, in order to satisfy the needs of clearance altitude variation construction under the bridge, under-bridge construction operation has been facilitated.
In another technical scheme, a limiting block 202 is arranged on the main truss 2 and is located at the top of the rack 201.
In the technical scheme, the limiting block 202 is arranged at the top of the rack 201, and the thickness of the limiting block 202 in the width direction of the bridge is larger than that of the rack 201 in the width direction of the bridge, so that the main truss 2 is prevented from moving downwards after the gear motor 104 is meshed with the top of the rack 201, the main truss 2 is prevented from falling off from the trolley 1, the descending height of the construction platform can be controlled by arranging the limiting block 202, and the safety in the construction process is improved.
In another technical solution, the cross beam 3 includes a plurality of triangular trusses, which are continuously arranged in a width direction of the bridge.
In this technical scheme, crossbeam 3 is assembled through the bolt by a plurality of triangle-shaped trusses along the width direction of bridge and is formed, and its width that can be under construction as required increases and decreases its total length to adapt to the construction requirement of different bridge width, application range is wide, and passes through bolted connection between the triangle-shaped truss, makes crossbeam 3 reuse, reduces construction cost.
In another technical solution, the device further comprises a protective fence which is fixedly arranged on the top of the operation platform 4 along the circumferential direction of the operation platform 4.
In the above technical solution, the guard fence is arranged on the top of the operation platform 4, the guard fence can be composed of two groups of cross bars 401 and two groups of vertical bars 402, the two groups of cross bars 401 are oppositely arranged at two ends of the operation platform 4, any group of cross bars 401 comprises a plurality of cross bars 401, which are arranged at intervals along the height direction of the bridge, two ends of any cross rod 401 are respectively and fixedly connected with the inner side surfaces of two main trusses 2, two groups of vertical rods 402 are vertically arranged on the two groups of cross rods 401 relatively, any group of vertical rods 402 comprises a plurality of vertical rods 402, it sets up along the width direction interval of bridge, the bottom of arbitrary montant 402 and operation platform 4's top fixed connection, inside wall and a plurality of horizontal pole 401 fixed connection, two main trusses 2 of protection rail cooperation will enclose operation platform 4's the circumference outside and establish, play safety protection's effect, improve the security of construction workman in the work progress.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. The utility model provides a but, deck bridge lifting construction platform which characterized in that includes:
the two trolleys are positioned on the bridge panel and are oppositely arranged on two sides of the bridge;
the two main trusses are respectively arranged at the outer sides of the two trolleys, any one main truss vertically extends downwards to the lower part of the bridge panel, and any one main truss is connected with the corresponding trolley in a sliding manner along the height direction of the bridge through a moving device;
the two ends of the cross beam are respectively and fixedly connected with the bottoms of the two main trusses;
and the operating platform is arranged at the top of the cross beam.
2. The liftable construction platform for the deck bridge as claimed in claim 1, wherein a plurality of rollers are provided on the bottom of any one of the trolleys, the trolleys move along the length direction of the bridge through the rollers, and a foot brake is provided on any one of the rollers.
3. The liftable construction platform for a deck bridge as claimed in claim 2, wherein a weight block is fixed on the top of the trolley.
4. The deck bridge liftable construction platform of claim 1, wherein the moving device comprises:
the rack is vertically and fixedly arranged on the inner side wall of the main truss;
the gear motor is fixedly arranged on one side of the trolley close to the main truss and is meshed and connected with the rack;
and the power supply is fixedly arranged on the trolley and is electrically connected with the gear motor.
5. The deck bridge liftable construction platform of claim 4, wherein the main truss is provided with a stop block which is located at the top of the rack.
6. The deck bridge liftable construction platform of claim 1, wherein the cross beam comprises a plurality of triangular trusses arranged in series along the width direction of the bridge.
7. The liftable construction platform for a deck bridge according to claim 1, further comprising a protective fence fixedly arranged on the top of the operation platform along the circumferential direction of the operation platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121110056.4U CN214783330U (en) | 2021-05-21 | 2021-05-21 | A liftable construction platform for an up-supported bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121110056.4U CN214783330U (en) | 2021-05-21 | 2021-05-21 | A liftable construction platform for an up-supported bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214783330U true CN214783330U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121110056.4U Active CN214783330U (en) | 2021-05-21 | 2021-05-21 | A liftable construction platform for an up-supported bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622498A (en) * | 2022-05-07 | 2022-06-14 | 浙江交工集团股份有限公司 | Self-walking operation platform for construction of cable-stayed bridge bottom and installation method |
-
2021
- 2021-05-21 CN CN202121110056.4U patent/CN214783330U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622498A (en) * | 2022-05-07 | 2022-06-14 | 浙江交工集团股份有限公司 | Self-walking operation platform for construction of cable-stayed bridge bottom and installation method |
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