CN220266312U - Device for bridge deck wet joint template construction - Google Patents

Device for bridge deck wet joint template construction Download PDF

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Publication number
CN220266312U
CN220266312U CN202321659160.8U CN202321659160U CN220266312U CN 220266312 U CN220266312 U CN 220266312U CN 202321659160 U CN202321659160 U CN 202321659160U CN 220266312 U CN220266312 U CN 220266312U
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China
Prior art keywords
template
cross rod
support body
bridge deck
fixedly connected
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Active
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CN202321659160.8U
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Chinese (zh)
Inventor
郭廷凯
李函逾
何乐文
洪尚言
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Sinohydro Bureau 12 Co Ltd
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Sinohydro Bureau 12 Co Ltd
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Abstract

The utility model discloses a device for bridge deck wet joint template construction, which comprises a template, a plurality of fixing brackets erected on the upper surfaces of two beam bodies, and a plurality of screws for connecting the fixing brackets and the template; the fixed support comprises a first support body and a second support body which are detachably connected with each other, wherein the first support body and the second support body both comprise a cross rod and upright rods fixedly connected to the bottoms of the two ends of the cross rod, one opposite side of the cross rod of the first support body and one opposite side of the cross rod of the second support body are respectively provided with a through semi-ring, the two semi-rings are mutually spliced to form a perforation, the top of a screw rod penetrates through the perforation and is fixedly connected with the cross rod through a locking nut, and the bottom of the screw rod is connected with the template through threads; the upper surfaces of the two beam bodies are also provided with hanging frames, a plurality of windlass are fixedly connected to the hanging frames, ropes are wound on the windlass, and the tail ends of the ropes are fixedly connected with the top ends of the screw rods. The utility model has the advantages of stable structure, stable and fixed template, simple operation, labor force reduction and high efficiency and safety in construction.

Description

Device for bridge deck wet joint template construction
Technical Field
The utility model relates to the technical field of bridge wet joint construction equipment, in particular to a device for bridge deck wet joint template construction.
Background
In highway bridge construction, after precast prestressed concrete beam body is segmented and prefabricated, a cantilever is assembled into a large-span continuous beam, and gaps among the beam bodies are fixedly connected by adopting cast-in-place concrete pouring, namely wet joints. At present, two main methods exist in the construction of wet joints of highway bridges: and (5) constructing a full scaffold and constructing a hanging formwork.
The construction of the full scaffold is that a full scaffold is erected below a bridge, a worker installs a template on the full scaffold, two edges of the top surface of the template are clung to the bottoms of two beam bodies at wet joints, then the worker locks and fixes a steel pipe with holes, which stretches across the two beam bodies, with the template through screws and bolts on the bridge deck, then the steel bars are bound on the two beam bodies, the steel bars extending to the wet joints are bound, finally concrete pouring is carried out, and after the concrete is formed, the template and the full scaffold are required to be removed. The method has the defects that a large amount of manpower and material resources are consumed to build and dismantle the full-hall scaffold, the construction efficiency is low, the construction time is long, the construction labor intensity is high, and certain safety risks exist when the template is installed and dismantled on the full-hall scaffold. Moreover, when the bridge floor concrete is trowelled, because the steel pipe with holes is locked on the bridge floor, the distance between the steel pipe with holes and the concrete is relatively close, the concrete is difficult to trowelle, and the appearance quality of the bridge floor concrete is difficult to ensure.
The construction of the hanging die is to manufacture a template by adopting a bamboo plywood, uniformly installing a plurality of pull rods on the template, binding pull ropes on the pull rods close to two ends of the template, usually at least 4 positions, standing on a bridge deck by workers, lowering the template from a wet joint to the bottom of a beam body through the pull ropes, pulling the template through the pull ropes to carry out temporary fixation, fixing a steel pipe with holes, which spans over two beam bodies, on the bridge deck by the workers through screws and screws, with the pull rods, which are not connected with the pull ropes, on the template, and finally binding and concreting steel bars, which extend out of the wet joint, on the two beam bodies. The construction progress of the suspended formwork is faster and the labor intensity is smaller than that of a full scaffold, but the construction method has the following problems that 1. The strength and the stability of a perforated steel pipe are poor, the steel pipe is easy to scatter, the formwork is locked by fixing the perforated steel pipe with a formwork pull rod, the stability of the formwork is also not high, the transverse movement and the adjustment are difficult when the formwork is spliced in place, and the concrete pouring quality is easy to be influenced; 2. when the concrete at the wet joint is trowelled, the distance between the perforated steel pipe and the concrete is relatively short, so that the space above the concrete at the position is blocked, workers hardly stretch into the upper surface of the concrete at the position to trowelle the concrete, and the appearance quality of bridge deck concrete is hardly ensured; 3. some bridge constructions are located on rivers or in high mountain canyons, and the form and mounting members need to be transported from the river surface or canyon, which is far from the deck, to the wet joints of the deck, which is very inconvenient.
Disclosure of Invention
The utility model provides a device for bridge deck wet joint template construction, which aims to solve the technical problems. This construction equipment sets up two fixed bolsters that can splice, spanes respectively and fixes on two beam body bridge floors of wet joint, and two fixed bolsters that can splice through mortise and tenon fixed are fixed with the screw rod, have improved the intensity and the stability of fixed bolster to make template and fixed bolster's screw rod can be fully locked, the template is fixed on screw rod and fixed bolster steadily, has guaranteed the stability of template, and the concatenation also remains stable between every two templates, and then has guaranteed concrete placement quality. Meanwhile, the spliced fixing support with the vertical rods enables the fixing support not to be clung to the bridge floor, so that the upper surface of the concrete is convenient to be trowelled, and the appearance quality of the concrete of the bridge floor is guaranteed. The lifting frame is provided with the winch and the lifting frame, the screw rod and the template are pulled by the winch, so that the construction safety is improved, the lifting frame is convenient to move the winch, the position of the winch is adjusted, and the construction of a bridge wet joint of a river or a mountain canyon is facilitated.
The device for bridge deck wet joint template construction comprises templates arranged at the bottoms of two beam bodies, a plurality of fixing brackets erected on the upper surfaces of the two beam bodies, and a plurality of screws for connecting the fixing brackets and the templates; the fixed support comprises a first support body and a second support body which are detachably connected with each other, wherein the first support body and the second support body both comprise a cross rod and upright rods fixedly connected to the bottoms of the two ends of the cross rod, one opposite side of the cross rod of the first support body and one opposite side of the cross rod of the second support body are respectively provided with a through semi-ring, the two semi-rings are mutually spliced to form a perforation, the top of a screw rod penetrates through the perforation and is fixedly connected with the cross rod through a locking nut, and the bottom of the screw rod is connected with the template through threads; the upper surfaces of the two beam bodies are also provided with hanging frames, a plurality of windlass are fixedly connected to the hanging frames, ropes are wound on the windlass, and the tail ends of the ropes are fixedly connected with the top ends of the screw rods.
The further technical scheme is as follows: one side of the cross rod of the first frame body, which is provided with the semi-rings, is provided with a plurality of tenons, one side of the cross rod of the second frame body, which is provided with the semi-rings, is provided with a plurality of mortise holes, and the tenons and the mortise holes are connected in an anastomotic manner.
The further technical scheme is as follows: foot pads are fixedly connected to bottoms of the vertical rods of the first frame body and the second frame body.
The further technical scheme is as follows: a U-shaped gasket is also inserted on the screw rod between the locking nut and the cross rod.
The further technical scheme is as follows: the lines of all screws are parallel to the length direction of the form and coincide with the midline of the form.
The further technical scheme is as follows: the template is provided with a connecting hole, the top of the connecting hole is communicated with the upper surface of the template, the bottom of the connecting hole is closed, and the bottom of the screw rod is connected with the connecting hole through threads.
The further technical scheme is as follows: the bottom of the template is provided with a hanging ring.
The further technical scheme is as follows: the PVC protection tube is sleeved on the screw rod, and the length of the PVC protection tube is the distance between the cross rod and the template.
The further technical scheme is as follows: the gallows includes the hanging frame of cuboid structure, hangs the bottom four corners fixedly connected with universal wheel of frame, hangs the centre at frame top and is provided with two dead levers, and the bottom both sides fixed connection of hoist engine is on two dead levers.
The further technical scheme is as follows: the middle part of hanging the frame is provided with a plurality of reinforcing rods.
The utility model has the beneficial effects that:
the method is simple to operate, convenient and safe to construct, recyclable, good in economical efficiency and high in construction efficiency.
The fixing support comprises the first support body and the second support body which are detachably assembled, the first support body and the second support body comprise the cross rod and the vertical rods, the cross rod is connected with the screw rod through the locking nuts, the template is stably fixed at the bottom of the beam body, the vertical rods are arranged to lift the cross rod above concrete, the distance between the cross rod and the concrete is increased, the plastering of workers is facilitated, and the appearance quality of bridge deck concrete is effectively guaranteed.
The first frame body and the second frame body are spliced through the mortise and tenon structures, so that the structure is stable, the installation and the disassembly are convenient, and the screws can be quickly spliced at the left side and the right side of the screws so as to be penetrated in the through holes in the fixed support. Through setting up the pad foot piece in the bottom of pole setting, can further improve the stability of fixed bolster, make it place on the bridge floor steadily. Through set up the gasket between horizontal pole and lock nut, can make screw rod and fixed bolster firmly be connected, improve the holistic stability of device, be difficult for the frame that looses.
According to the utility model, the winch is fixedly connected with the screw rod, so that a rope is not required to be pulled manually when the template is installed, the labor force can be reduced, and the construction safety is improved. The lifting frame is convenient to drive the winch to move, the position of the winch is convenient to adjust, the winch is corresponding to the screw on the template, the lifting frame can be recycled on a bridge, the winch is not required to be repeatedly and fixedly installed, and the lifting frame is economical and efficient and is particularly suitable for construction of wet joints of bridges in rivers or mountain canyons.
Drawings
FIG. 1 is a schematic side view of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
FIG. 3 is a schematic top view of the stationary bracket;
fig. 4 is a schematic view of an internal structure of the first frame body;
fig. 5 is a schematic view of an internal structure of the second frame body;
FIG. 6 is a schematic structural view of a form;
FIG. 7 is a schematic structural view of a gasket;
fig. 8 is a schematic top view of the hanger.
In the figure:
1. template, 2, fixed bolster, 3, screw rod, 4, the roof beam body, 5, first support body, 6, the second support body, 7, horizontal pole, 8, pole setting, 9, semi-ring, 10, perforation, 11, locking nut, 12, connecting hole, 13, tenon, 14, mortise, 15, foot pad piece, 16, gasket, 17, rings, 18, PVC protection tube, 19, stirrup, 20, hoist engine, 21, rope, 22, gallows, 23, hanging frame, 24, universal wheel, 25, dead lever, 26, stiffener.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
In the description of the present utility model, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate or indicate the orientation or positional relationship based on that shown in the drawings, only for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.
In the description of the present utility model, it should be noted that unless explicitly specified and limited otherwise, terms such as "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases to those skilled in the art.
1-8, the device for bridge deck wet joint template construction comprises a template 1 arranged at the bottom of two beam bodies 4, a plurality of fixed brackets 2 erected on the upper surfaces of the two beam bodies 4, and a plurality of screws 3 for connecting the fixed brackets 2 and the template 1; the fixed support 2 comprises a first support body 5 and a second support body 6 which are detachably connected with each other, the first support body 5 and the second support body 6 respectively comprise a cross rod 7 and upright rods 8 fixedly connected to the bottoms of the two ends of the cross rod 7, through semi-rings 9 are arranged on opposite sides of the cross rods of the first support body 5 and the second support body 6 respectively, the two semi-rings 9 are mutually spliced to form a perforation 10, the top of the screw rod 3 penetrates through the perforation 10 and is fixedly connected with the cross rod 7 through a locking nut 11, and the bottom end of the screw rod 3 is in threaded connection with the template 1; the upper surfaces of the two beam bodies 4 are also provided with hanging brackets 22, a plurality of windlass 20 are fixedly connected to the hanging brackets 22, ropes 21 are wound on the windlass 20, and the tail ends of the ropes 21 are fixedly connected with the top ends of the screw rods 3.
Through setting up the fixed bolster 2 that can dismantle the concatenation, the first support body 5 of fixed bolster 2 and second support body 6 control the amalgamation in screw rod 3 both sides, conveniently wear screw rod 3 to establish in the perforation 10 of fixed bolster 2 to through locking nut 11 fixed connection screw rod 3 and fixed bolster 2, make template 1 stably fix in roof beam body 4 bottom under the support of screw rod 3. The fixed bolster makes horizontal pole 7 and roof beam body 4 upper surface have certain interval through setting up pole setting 8 that have certain height, makes things convenient for constructor to finish, guarantees the roughness on bridge surface.
As shown in fig. 3 to 5, a plurality of tenons 13 are arranged on one side, provided with the semi-rings 9, of the cross rod of the first frame body 5, mortise 14 are arranged on one side, provided with the semi-rings 9, of the cross rod 7 of the second frame body 6, and the tenons 13 and the mortise 14 are connected in an anastomotic manner. Specifically, four tenons 13 are provided, and are respectively disposed at two ends of the cross bar of the first frame body 5 and two sides of the half ring 9, and the number and positions of mortise 14 correspond to those of the tenons 13. The first frame body 5 and the second frame body 6 are connected through the mortise and tenon joint structure, the operation is simple and convenient, the quick and firm splicing can be realized, the construction efficiency is improved, and the structural stability of the fixed support 2 is ensured. The mortise and tenon structure is a common connecting structure in the prior art, and is not described in detail herein.
The bottoms of the upright rods 8 of the first frame body 5 and the second frame body 6 are fixedly connected with foot pads 15. The foot pad 15 is made of rubber, so that the friction area of the bottom of the fixed support 2 can be increased, and the stability of the fixed support 2 is improved.
A U-shaped gasket 16 is also inserted on the screw 3 between the locking nut 11 and the cross bar 7. Through set up gasket 16 between locking nut 11 and the horizontal pole 7 of fixed bolster 2, can increase frictional force, make the connection between screw rod 3 and the fixed bolster 2 more firm and stable, gasket 16 sets up to the U-shaped simultaneously, conveniently directly peg graft on screw rod 3 when the installation, improves installation effectiveness.
The lines of all screws 3 are parallel to the length direction of the form 1 and coincide with the midline of the form 1. In an embodiment, two screws 3 are arranged, two screws 3 on the template 1 are located in the middle of the template 1 and are respectively fixed with two fixing brackets 2 through locking nuts 11, when the template is spliced, the position of the screws 3 is convenient for workers to pull the rope to transversely adjust the position of the template 1, and ropes or the screws 3 are prevented from being collided or clamped on stirrups 19 in a construction joint during moving. Preferably, the top of the screw 3 is provided with a screw head, so that the rope is convenient to bind and is not easy to fall off when being tied on the screw 3.
The template 1 can be made of bamboo plywood. More preferably, the template 1 is a plastic template, the whole weight of the template is lighter, and the template is more convenient for workers to operate when the template is hung.
The template 1 is provided with a connecting hole 12, the top of the connecting hole 12 is penetrated and extends to the upper surface of the template 1, the bottom of the connecting hole 12 is closed, and the bottom end of the screw 3 is connected with the connecting hole 12 through threads. The template 1 is in threaded connection with the screw 3 through the connecting hole 12, and in a specific embodiment, the thickening treatment is enhanced at the position where the connecting hole 12 is arranged on the template 1, so that the bottom of the screw 3 is prevented from penetrating through the template 1, and the strength of the template 1 is improved.
The bottom of the template 1 is provided with a hanging ring 17. Through setting up rings 17, when demolishing template 1, the workman is in bridge bottom through the hook after on rings 17, pulls rings 17 just can demolish template 1, avoids adopting traditional demolishing method to strike, shakes template 1 to protection shaping concrete realizes the quick separation of template.
The screw 3 is sleeved with a PVC protection tube 18, and the length of the PVC protection tube 18 is the distance between the cross rod 7 and the template 1. The PVC protection tube 18 can effectively prevent the screw 3 and the concrete from being solidified together, and is convenient to disassemble and can protect the concrete.
As shown in fig. 8, the hanger 22 includes a hanger frame 23 with a rectangular parallelepiped structure, universal wheels 24 are fixedly connected to four corners of the bottom of the hanger frame 23, the universal wheels 24 are preferably universal wheels with brakes, two fixing rods 25 are arranged in the middle of the top of the hanger frame 23, and two sides of the bottom of the winch 20 are fixedly connected to the two fixing rods 25. The distance between two adjacent windlass 20 is the same as the distance between two adjacent screw rods 3, so that the windlass 20 is correspondingly arranged above the screw rods 3 and fixedly connected with the top ends of the screw rods 3 through ropes 21. By providing the hoist 20 connected to the screw 3, it is unnecessary to add a manual pulling rope when installing the form 1, labor force can be reduced, and safety is improved. The universal wheels 24 of the hanger 22 conveniently drive the windlass 20 to move, so that the position of the windlass 20 is adjusted to correspond to the screw 3.
The middle part of hanging frame 23 is provided with many reinforcing rods 26, and reinforcing rods 26 can improve the holistic stability of gallows 22.
The application method of the utility model comprises the following steps: firstly, a locking nut 11 and a PVC protection tube 18 are sleeved on a screw rod 3 from the bottom of the screw rod 3, the screw rod 3 is rotated to be in threaded connection with a template 1, the tail end of a rope 21 on a winch 20 is bound and fixed at the top end of the screw rod 3, the template 1 is erected and sent down to the bottom of a bridge from a construction joint on a bridge deck, the screw rod 3 is pulled by the winch 20, and the position of the template 1 is adjusted by moving a hanger 22. Then the first frame body 5 and the second frame body 6 are placed on two sides of the screw rod 3, after the screw rod 3 passes through the through holes 10 of the fixed support 2, the gasket 16 is inserted into the joint of the cross rod 7 and the screw rod 3, and the template 1 can be stably installed at the bottom of the bridge through the fixed connection of the rotating locking nut 11. When the formwork is disassembled, the fixed support 2 is firstly disassembled, then the screw 3 is rotated to separate the fixed support from the formwork 1, the PVC protective sleeve 18 is extracted for the next use, and finally the formwork 1 is quickly separated from the concrete by hooking the hanging rings 17 at the bottom of the formwork 1 through the hooks.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (10)

1. The device for bridge deck wet joint template construction comprises templates arranged at the bottoms of two beam bodies and is characterized by further comprising a plurality of fixing brackets erected on the upper surfaces of the two beam bodies and a plurality of screws for connecting the fixing brackets and the templates; the fixed support comprises a first support body and a second support body which are detachably connected with each other, wherein the first support body and the second support body both comprise a cross rod and upright rods fixedly connected to the bottoms of the two ends of the cross rod, one opposite side of the cross rod of the first support body and one opposite side of the cross rod of the second support body are respectively provided with a through semi-ring, the two semi-rings are mutually spliced to form a perforation, the top of a screw rod penetrates through the perforation and is fixedly connected with the cross rod through a locking nut, and the bottom of the screw rod is connected with the template through threads; the upper surfaces of the two beam bodies are also provided with hanging frames, a plurality of windlass are fixedly connected to the hanging frames, ropes are wound on the windlass, and the tail ends of the ropes are fixedly connected with the top ends of the screw rods.
2. The device for bridge deck wet joint formwork construction according to claim 1, wherein a plurality of tenons are arranged on one side of the cross rod of the first frame body, which is provided with the half rings, and a plurality of mortise holes are arranged on one side of the cross rod of the second frame body, which is provided with the half rings, and the tenons and the mortise holes are connected in an anastomotic manner.
3. The device for bridge deck wet joint formwork construction according to claim 1 or 2, wherein the bottoms of the upright rods of the first frame body and the second frame body are fixedly connected with foot pads.
4. The apparatus for bridge deck wet joint form construction according to claim 1, wherein a U-shaped spacer is further inserted on the screw between the locking nut and the cross bar.
5. A device for construction of a wet joint form for a bridge deck according to claim 1, wherein the connecting lines of all screws are parallel to the length direction of the form and coincide with the midline of the form.
6. A device for construction of a wet joint form for a bridge deck according to claim 1 or 5, wherein the form is provided with a connecting hole, the top of the connecting hole extends through to the upper surface of the form, the bottom of the connecting hole is closed, and the bottom end of the screw is connected with the connecting hole by screw threads.
7. The apparatus for construction of a wet joint form for a bridge deck according to claim 1, wherein the form has a hanging ring at a bottom thereof.
8. The device for bridge deck wet joint formwork construction according to claim 1, wherein the screw is sleeved with a PVC protection tube, and the length of the PVC protection tube is the distance between the cross rod and the formwork.
9. The device for bridge deck wet joint formwork construction according to claim 1, wherein the hanger comprises a hanger frame of a cuboid structure, universal wheels are fixedly connected to four corners of the bottom of the hanger frame, two fixing rods are arranged in the middle of the top of the hanger frame, and two sides of the bottom of the winch are fixedly connected to the two fixing rods.
10. The apparatus for bridge deck wet joint formwork construction as claimed in claim 9, wherein a plurality of reinforcing bars are provided at a central portion of the hanger frame.
CN202321659160.8U 2023-06-27 2023-06-27 Device for bridge deck wet joint template construction Active CN220266312U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321659160.8U CN220266312U (en) 2023-06-27 2023-06-27 Device for bridge deck wet joint template construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321659160.8U CN220266312U (en) 2023-06-27 2023-06-27 Device for bridge deck wet joint template construction

Publications (1)

Publication Number Publication Date
CN220266312U true CN220266312U (en) 2023-12-29

Family

ID=89298989

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321659160.8U Active CN220266312U (en) 2023-06-27 2023-06-27 Device for bridge deck wet joint template construction

Country Status (1)

Country Link
CN (1) CN220266312U (en)

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