CN216194090U - Wet seam attached construction platform of precast box girder - Google Patents
Wet seam attached construction platform of precast box girder Download PDFInfo
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- CN216194090U CN216194090U CN202122597955.8U CN202122597955U CN216194090U CN 216194090 U CN216194090 U CN 216194090U CN 202122597955 U CN202122597955 U CN 202122597955U CN 216194090 U CN216194090 U CN 216194090U
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- construction platform
- box girder
- actuating lever
- crossbearer
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Abstract
The utility model provides a prefabricated box girder wet seam attached construction platform and a construction method thereof. The construction time related to wet joints of bridges on railways is accelerated. Simple use, convenient operation, reduced labor cost, and can be installed by one person when in use. The utility model can adapt to templates with different sizes, reduce the number of lifting appliances to be processed and save manpower and material consumption.
Description
Technical Field
The utility model relates to the technical field of maintenance of precast box girders, in particular to an attached construction platform for wet joints of precast box girders.
Background
Along with the continuous development of traffic engineering, the construction of related to railway bridges is more and more, when an upper-span bridge structure is prefabricated, erection of beam plates is usually carried out by closing off a railway or utilizing railway window time, a protective shed frame is usually erected below the upper-span railway after the erection is finished, and under the protection of the protective shed frame, the construction of upper-span railway beam plate joints, anti-collision guardrails and the like is carried out.
At present, the construction protection of wet joints of precast box girders related to railway bridges adopts a method of erecting upright posts at slope feet at two sides and erecting a shed frame. However, when the span of the canopy frame is large and the height is high, a safety problem is easily caused; or the method of erecting the canopy frame by arranging the upright column foundations on the roadbed slopes at the two sides is adopted, so that the roadbed slopes are inevitably excavated, certain influence is caused on the driving safety, and the problems of high interference on railway operation, long influence time and the like are caused by the fact that railway window time needs to be used for multiple times or the canopy frame is blocked in the process of erecting and dismantling the canopy frame. And the current construction platform can not realize moving, and the construction is very inconvenient to move.
Chinese patent CN205474862U discloses a movable box girder wet joint template operation platform, belonging to a bridge superstructure construction device, comprising a walking and supporting system, a suspension system and a construction platform; the walking and supporting system comprises a frame structure and an axle mechanism fixed with the frame structure; the suspension system is a hanging bracket structure capable of rotating in the direction, one end of the suspension system is rotatably connected with the walking and supporting system, and the other end of the suspension system is fixed with the construction platform; the construction platform comprises a frame and a panel layer paved on the frame. The scheme is inconvenient to move and construct and slow in installation and assembly.
The Chinese patent CN113202029A Ming relates to the construction of a highway bridge of an upper-span railway trunk line, in particular to a wet joint and middle-span diaphragm plate bottom protection construction method of an upper-span business line bridge. The technical problem that the lower railway line is easily interfered during the construction of the middle-crossing diaphragm plate in the existing over-span business line bridge construction is solved. The method comprises the steps of constructing a middle-span diaphragm plate and constructing a wet joint; the construction of the midspan diaphragm plate comprises the following steps: (1) installing a middle clapboard construction platform at the position where a middle transverse clapboard is needed to be poured at the wet joint of two adjacent box girders; (2) welding diaphragm connecting steel bars at the position of the diaphragm in the span to be poured and making a template support; (3) pouring concrete after the formwork support is finished; (4) the template is removed, and the removed template is transported to the top surface of the beam body from the wet joint gap; (5) removing channel steel, wood boards, steel wire meshes and tie bars of the middle clapboard construction platform, and transporting the channel steel, the wood boards, the steel wire meshes and the tie bars to the top surface of the beam body through the gaps of the wet joints; and performing wet joint construction after the construction of the midspan diaphragm plate is finished. The scheme is inconvenient to move and construct and slow in installation and assembly.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a wet joint attachment type construction platform for a prefabricated box girder, which solves the problem that the safety is easily caused when the span and the height of a shed are large and the shed is high by adopting a method of erecting upright posts at slope feet at two sides and erecting the shed at present in the wet joint construction protection of the prefabricated box girder related to a railway bridge.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides a wet seam inserted construction platform of prefabricated box girder, including dowel and angle steel, the dowel is used for installing in prefabricated box girder one side, the angle steel is established at the dowel through first screw, an angle steel terminal surface pastes in prefabricated box girder one side, still be equipped with construction platform, construction platform is used for placing between double-phase adjacent prefabricated box girder, and the terminal surface supports respectively to lean on the angle steel up end that leans on between two adjacent prefabricated box girders under the construction platform both sides, still be equipped with the support crossbearer, the support crossbearer is connected with construction platform through a plurality of davits, it is equipped with a plurality of gyro wheels to support the crossbearer both sides, construction platform removes between two adjacent prefabricated box girders through supporting the crossbearer.
In the preferred scheme, be equipped with a plurality of supporting legss on the support crossbearer, be equipped with the gyro wheel on the supporting legs, the davit upper end is equipped with the fixing base of bending, and support crossbearer lower surface is equipped with a plurality of snap rings, and the fixing base is established inside the snap ring, still is equipped with a plurality of second screws, and the second screw passes support crossbearer and fixing base threaded connection.
In the preferred scheme, the roller comprises a driving wheel, a driven wheel and a construction platform, a driving device is arranged on the suspension column, and the driving device is connected with the driving wheel.
In a preferred embodiment, the driving device has the following structure: including first actuating lever and second actuating lever, first actuating lever is established on the davit through a plurality of rotation seats, and davit one side is equipped with the rolling disc, and the rolling disc is connected with first actuating lever, and the second actuating lever is established on supporting the crossbearer through a plurality of rotation seats, and first actuating lever is connected with the second actuating lever, and the second actuating lever both ends are connected with the drive wheel.
In the preferred scheme, the rotating disc is connected with a first driving rod through a first bevel gear set, the first driving rod is connected with a second driving rod through a second bevel gear set, and two ends of the second driving rod are connected with a driving wheel through a driving belt.
In the preferred scheme, the davit lower extreme is equipped with the hanging seat, and construction platform both sides are equipped with the bayonet socket, and construction platform's bayonet socket card just supports to lean on at the hanging seat under the construction platform on the davit, and construction platform passes through a plurality of screw locking on the hanging seat.
In the preferred scheme, a sunken mounting platform is arranged in the middle of the construction platform, and a plurality of bearing plates are arranged on the mounting platform;
the loading board is steel plate net walkway plate, or is multilayer composite sheet, and the composite sheet includes the bamboo offset plate, and the bamboo offset plate lower surface is equipped with the enhancement skeleton, and the upper surface complex has the PLASTIC LAMINATED.
In the preferred scheme, be equipped with the cat ladder on the support crossbearer, support crossbearer both sides and be equipped with the spout, still be equipped with the horizontal pole, cat ladder upper end and horizontal pole sliding connection, horizontal pole both ends and spout sliding connection.
In the preferred scheme, a plurality of stabilizing frames are further arranged on two sides of the construction platform, an inclined clamping groove is formed in the construction platform, the stabilizing frames are obliquely clamped in the clamping groove, a screw rod is arranged on each stabilizing frame and is in threaded connection with the stabilizing frame, a rubber head is arranged at one end of each screw rod, and a rotating handle is arranged at the other end of each screw rod;
the rubber head of the stabilizer frame is abutted against the side face of the precast box girder so as to stabilize the construction platform.
The utility model provides a wet joint attachment type construction platform for a precast box girder, which does not need to seal a railway, has little influence on the railway, does not need large-scale equipment and temporary structural engineering, and has economic and efficient whole process. The utility model has simple process, and is economical and safe. Bolts are pre-embedded and angle steel is reinforced before the box girder is erected, so that the construction time is greatly saved for the construction of the wet joint attaching protective shed, and the construction time related to the wet joint of the bridge on the railway is accelerated. Simple use, convenient operation, reduced labor cost, and can be installed by one person when in use. The utility model can adapt to templates with different sizes, reduce the number of lifting appliances to be processed and save manpower and material consumption.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a general front view block diagram of the present invention;
FIG. 2 is a view of the overall installation construction of the present invention;
FIG. 3 is a view of the construction platform installation configuration of the present invention;
FIG. 4 is a view showing an installation structure of the driving apparatus of the present invention;
FIG. 5 is a view showing the structure of the installation of the carrier plate according to the present invention;
FIG. 6 is a view of the construction of the mounting of the suspension posts of the present invention;
FIG. 7 is a view of the ladder mounting structure of the present invention;
FIG. 8 is a view of the stabilizer mounting structure of the present invention;
in the figure: a construction platform 1; a bayonet 101; an installation table 102; a card slot 103; angle steel 2; a first screw 3; anchor bars 4; a suspension post 5; a fixed seat 501; a hanger 502; a first drive lever 6; a ladder stand 7; a support cross frame 8; a chute 801; a snap ring 802; a lifting lug 9; supporting legs 10; a drive wheel 11; a second drive lever 12; a carrier plate 13; a driven pulley 14; a cross bar 15; a stabilizer 16; a rubber head 1601; a screw 1602; turning handle 1603; a transmission belt 17; a turn disc 18; a first bevel gear set 19; a second bevel gear set 20; and a second screw 21.
Detailed Description
Example 1
As shown in fig. 1-8, a prefabricated box girder wet seam attached construction platform, including anchor 4 and angle steel 2, anchor 4 is used for installing in prefabricated box girder one side, angle steel 2 is established at anchor 4 through first screw 3, 2 terminal surfaces of angle steel are pasted in prefabricated box girder one side, still be equipped with construction platform 1, construction platform 1 is used for placing between double-phase adjacent prefabricated box girder, and the terminal surface supports respectively to lean on the angle steel 2 up end that leans on between two adjacent prefabricated box girder under the construction platform 1 both sides, still be equipped with support crossbearer 8, support crossbearer 8 is connected with construction platform 1 through a plurality of davits 5, support crossbearer 8 both sides are equipped with a plurality of gyro wheels, construction platform 1 moves between two adjacent prefabricated box girder through support crossbearer 8. The angle steel 2 is used for stabilizing the construction platform 1, plays a role in protecting the construction platform 1, and can also move the whole supporting cross frame 8, so that the whole construction platform 1 can move for construction.
In the preferred scheme, be equipped with a plurality of supporting legss 10 on the support crossbearer 8, be equipped with the gyro wheel on the supporting legss 10, the upper end of davit 5 is equipped with the fixing base 501 of bending, and 8 lower surfaces of support crossbearers are equipped with a plurality of snap rings 802, and inside fixing base 501 established at snap ring 802, still be equipped with a plurality of second screws 21, and second screws 21 passed support crossbearer 8 and fixing base 501 threaded connection. With the structure shown in fig. 6, the bent fixing seat 501 is clamped inside the snap ring 802, and is positioned and then installed, so that the installation speed is high.
In the preferred scheme, the roller comprises a driving wheel 11 and a driven wheel 14, the construction platform 1 is provided with a driving device on the suspension column 5, and the driving device is connected with the driving wheel 11. The structure of the driving device is as follows: including first actuating lever 6 and second actuating lever 12, first actuating lever 6 is established on davit 5 through a plurality of rotation seats, and davit 5 one side is equipped with rolling disc 18, and rolling disc 18 is connected with first actuating lever 6, and second actuating lever 12 is established on supporting crossbearer 8 through a plurality of rotation seats, and first actuating lever 6 is connected with second actuating lever 12, and second actuating lever 12 both ends are connected with drive wheel 11. The rotary disk 18 is connected to the first drive rod 6 via a first bevel gear set 19, the first drive rod 6 is connected to the second drive rod 12 via a second bevel gear set 20, and the second drive rod 12 is connected at both ends to the drive wheel 11 via a drive belt 17. In the structure shown in fig. 4, the rotating disc 18 is rotated, and the rotating disc 18 drives the driving wheel 11 to slide on the prefabricated box girder, so that the moving construction is performed.
In the preferred scheme, the lower end of a suspension column 5 is provided with a suspension seat 502, bayonets 101 are arranged on two sides of a construction platform 1, the bayonets 101 of the construction platform 1 are clamped on the suspension column 5, the lower end face of the construction platform 1 abuts against the suspension seat 502, and the construction platform 1 is locked on the suspension seat 502 through a plurality of screws. Bayonet 101 card of construction platform 1 is on davit 5 and construction platform 1 lower terminal surface supports and leans on and hangs seat 502, and construction platform 1 locks on hanging seat 502 through a plurality of screws, and it is more convenient to install, and mounting structure is more stable.
In the preferred scheme, construction platform 1 middle part is equipped with sunken mount table 102, and the polylith loading board 13 is established on mount table 102. The bearing plate 13 is a steel plate net walkway plate or a multilayer composite plate, the composite plate comprises a bamboo plywood, the lower surface of the bamboo plywood is provided with a reinforced framework, and the upper surface is compounded with a fireproof plate. The preferable course is a steel plate net walkway plate.
In the preferred scheme, be equipped with cat ladder 7 on the support crossbearer 8, support crossbearer 8 both sides and be equipped with spout 801, still be equipped with horizontal pole 15, cat ladder 7 upper end and horizontal pole 15 sliding connection, horizontal pole 15 both ends and spout 801 sliding connection. The crawling ladder 7 can be moved at multiple angles and is convenient to use.
In the preferred scheme, construction platform 1 both sides still are equipped with a plurality of stabilizer 16, are equipped with the draw-in groove 103 of slope on the construction platform 1, and stabilizer 16 slope card is inside draw-in groove 103, are equipped with screw 1602 on the stabilizer 16, screw 1602 and stabilizer 16 threaded connection, and screw 1602 one end is equipped with rubber head 1601, and the other end is equipped with twist grip 1603. The plurality of stabilizers 16 are used to stabilize the construction platform 1, preventing the construction platform 1 from shaking.
The rubber head 1601 of the stabilizer 16 abuts against the precast box girder side to stabilize the construction platform 1.
Example 2
Further described with reference to embodiment 1, as shown in fig. 1 to 8, a plurality of anchor bars 4 are embedded in a precast box girder related to a railway portion, the angle steel 2 is installed on the anchor bars 4 through first screws 3, so that one end surface of the angle steel 2 is kept horizontal, and the plurality of strip-shaped angle steels 2 form a straight strip-shaped structure.
Firstly, a plurality of supporting feet 10 are arranged on the supporting transverse frame 8, then a second driving rod 12 is arranged on the supporting transverse frame 8, and two ends of the second driving rod 12 are connected with a driving wheel 11 through a driving belt 17.
A first driving rod 6 is installed on the suspension post 5, and the lower end of the first driving rod 6 is connected with a rotating disc 18 through a first bevel gear set 19.
Will support the crossbearer 8 and put up on two adjacent prefabricated box girders, stabilize whole supporting crossbearer 8, support 8 below both sides installation davit 5, insert the fixing base 501 of davit 5 inside the snap ring 802 and stabilize the location, the fixed davit 5 of a plurality of second screws 21 of rethread, first actuating lever 6 upper end and second actuating lever 12 are through second bevel gear group 20 threaded connection.
Support and install cat ladder 7 on the crossbearer 8, hang down construction platform 1 through cat ladder 7, construction platform 1's bayonet 101 card is on davit 5, and installs construction platform 1 on hanging seat 502 through a plurality of screws, and simultaneously, construction platform 1 both sides are supported and are leaned on angle steel 2, make construction platform 1 stable.
A plurality of bearing plates 13 are arranged in the middle of the construction platform 1.
Insert the steady rest 16 slope on the draw-in groove 103 of construction platform 1, rotatory twist grip 1603 makes rubber head 1601 support and leans on precast box girder surface, stabilizes whole construction platform 1.
When the construction platform 1 is moved, the rubber head 1601 on the stabilizing frame 16 is loosened, the rotating disc 18 is rotated, and the rotating disc 18 drives the driving wheel 11 to slide on the prefabricated box girder, so that the construction is moved.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.
Claims (9)
1. The utility model provides a wet seam of precast box girder adheres to formula construction platform which characterized by: including dowel (4) and angle steel (2), dowel (4) are used for installing in prefabricated box girder one side, establish dowel (4) through first screw (3) angle steel (2), angle steel (2) one end face pastes in prefabricated box girder one side, still be equipped with construction platform (1), construction platform (1) are used for placing between double-phase adjacent prefabricated box girder, and the terminal surface supports respectively and leans on angle steel (2) up end of leaning on between two adjacent prefabricated box girder under construction platform (1) both sides, still be equipped with and support crossbearer (8), support crossbearer (8) are connected with construction platform (1) through a plurality of davits (5), support crossbearer (8) both sides are equipped with a plurality of gyro wheels, construction platform (1) move between double-phase adjacent prefabricated box girder through supporting crossbearer (8).
2. The wet joint attachment type construction platform for precast box girders according to claim 1, wherein: be equipped with a plurality of supporting legss (10) on supporting crossbearer (8), be equipped with the gyro wheel on supporting legss (10), davit (5) upper end is equipped with fixing base (501) of bending, and supporting crossbearer (8) lower surface is equipped with a plurality of snap rings (802), and inside snap ring (802) was established in fixing base (501), still was equipped with a plurality of second screws (21), and second screw (21) passed supporting crossbearer (8) and fixing base (501) threaded connection.
3. The wet joint attachment type construction platform for precast box girders according to claim 2, wherein: the roller comprises a driving wheel (11) and a driven wheel (14), the construction platform (1) is provided with a driving device on the suspension column (5), and the driving device is connected with the driving wheel (11).
4. The wet joint attachment type construction platform for precast box girders according to claim 3, wherein: the structure of the driving device is as follows: including first actuating lever (6) and second actuating lever (12), first actuating lever (6) are established on davit (5) through a plurality of rotation seats, davit (5) one side is equipped with rolling disc (18), rolling disc (18) are connected with first actuating lever (6), second actuating lever (12) are established on supporting crossbearer (8) through a plurality of rotation seats, first actuating lever (6) are connected with second actuating lever (12), second actuating lever (12) both ends are connected with drive wheel (11).
5. The wet joint attachment type construction platform for precast box girders according to claim 4, wherein: the rotating disc (18) is connected with the first driving rod (6) through the first bevel gear set (19), the first driving rod (6) is connected with the second driving rod (12) through the second bevel gear set (20), and two ends of the second driving rod (12) are connected with the driving wheel (11) through the driving belt (17).
6. The wet joint attachment type construction platform for precast box girders according to claim 1, wherein: the lower end of the suspension post (5) is provided with a suspension seat (502), bayonets (101) are arranged on two sides of the construction platform (1), the bayonets (101) of the construction platform (1) are clamped on the suspension post (5) and the lower end face of the construction platform (1) is abutted against the suspension seat (502), and the construction platform (1) is locked on the suspension seat (502) through a plurality of screws.
7. The wet joint attachment type construction platform for precast box girders according to claim 6, wherein: a sunken mounting table (102) is arranged in the middle of the construction platform (1), and a plurality of bearing plates (13) are arranged on the mounting table (102);
the bearing plate (13) is a steel plate net walkway plate or a multilayer composite plate, the composite plate comprises a bamboo rubber plate, the lower surface of the bamboo rubber plate is provided with a reinforcing framework, and the upper surface is compounded with a fireproof plate.
8. The wet joint attachment type construction platform for precast box girders according to claim 1, wherein: the ladder stand (7) is arranged on the supporting transverse frame (8), sliding grooves (801) are formed in two sides of the supporting transverse frame (8), a transverse rod (15) is further arranged, the upper end of the ladder stand (7) is connected with the transverse rod (15) in a sliding mode, and two ends of the transverse rod (15) are connected with the sliding grooves (801) in a sliding mode.
9. The wet joint attachment type construction platform for precast box girders according to claim 1, wherein: a plurality of stabilizing frames (16) are further arranged on two sides of the construction platform (1), an inclined clamping groove (103) is formed in the construction platform (1), the stabilizing frames (16) are obliquely clamped in the clamping groove (103), a screw rod (1602) is arranged on each stabilizing frame (16), the screw rod (1602) is in threaded connection with each stabilizing frame (16), a rubber head (1601) is arranged at one end of each screw rod (1602), and a rotating handle (1603) is arranged at the other end of each screw rod (1602);
the rubber head (1601) of the stabilizer (16) abuts against the side surface of the precast box girder to stabilize the construction platform (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122597955.8U CN216194090U (en) | 2021-10-27 | 2021-10-27 | Wet seam attached construction platform of precast box girder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122597955.8U CN216194090U (en) | 2021-10-27 | 2021-10-27 | Wet seam attached construction platform of precast box girder |
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| CN216194090U true CN216194090U (en) | 2022-04-05 |
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| CN202122597955.8U Active CN216194090U (en) | 2021-10-27 | 2021-10-27 | Wet seam attached construction platform of precast box girder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931071A (en) * | 2021-10-27 | 2022-01-14 | 中交第二航务工程局有限公司 | Prefabricated box girder wet joint adhesion type construction platform and construction method thereof |
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2021
- 2021-10-27 CN CN202122597955.8U patent/CN216194090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931071A (en) * | 2021-10-27 | 2022-01-14 | 中交第二航务工程局有限公司 | Prefabricated box girder wet joint adhesion type construction platform and construction method thereof |
| CN113931071B (en) * | 2021-10-27 | 2024-03-29 | 中交第二航务工程局有限公司 | Prefabricated box girder wet joint attached construction platform and construction method thereof |
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