CN213951985U

CN213951985U - Bridge width-splicing hinge structure

Info

Publication number: CN213951985U
Application number: CN202021879094.1U
Authority: CN
Inventors: 王新泉
Original assignee: Zhejiang Shirun Jianchuang Technology Development Co Ltd
Current assignee: Zhejiang Shirun Jianchuang Technology Development Co Ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-08-13
Anticipated expiration: 2030-09-01

Abstract

The utility model provides a wide hinge structure is pieced together to bridge, wide hinge structure is pieced together to bridge is by chiseling out the line, the steel backing plate, the overlap joint pole, the concrete pavement, first free bearing, rings, the arm-tie, wear the muscle hole, the reinforcing bar, high strength bolt wears the muscle, the steel form hangs the silk, old bridge, new bridge, the steel sheet, reinforced concrete, the second free bearing is constituteed. In the work progress, the utility model discloses a to new bridge edge installation free bearing, wear the muscle in advance in free bearing top department and make the second free bearing support, later the hanging wire on the second free bearing is along with the overlap joint pole is pulled up. And planting the steel bars at the chiseled-out position of the old bridge and connecting the steel bars with the pulling plate on the second hinge seat so as to complete the hinged splicing of the new bridge and the old bridge. Gaps still exist between the new bridge and the old bridge, and the gaps need to be filled up by using templates. The demand for the template is small, and economic waste is avoided; additionally the utility model discloses a component such as free bearing all adopts high strength bolted connection, and the construction speed is faster, construction convenience, and little to receiving the influence of weather.

Description

Bridge width-splicing hinge structure

Technical Field

The utility model relates to a building field, in particular to wide hinge structure is pieced together to bridge.

Background

The highway widening faces various difficulties such as roads, bridges and tunnels, wherein the bridge reconstruction and expansion is one of core problems and is also a key factor influencing the overall quality of the highway.

The existing highway bridge is expanded and rebuilt by adopting an old bridge in the aspects of reducing cost, saving land resources and the like, however, compared with a newly-built bridge, the expansion and reconstruction of the bridge face special problems, for example, a temporary support needs to be erected during construction of a traditional bridge splicing method, a large-sized mechanical access road needs to be built, a large-sized crane needs to be in place in advance to pocket a hanging beam body, the construction process is complex, and a lot of potential safety hazards exist.

At present, a simple and safe bridge widening hinge structure and a construction method thereof are needed to be found urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the defect of background art, provide a width's hinge structure is pieced together to simple and safe bridge.

The utility model provides a wide hinge structure is pieced together to bridge for connect new bridge and old bridge, lay the concrete and load in mixture on new bridge and the old bridge, place the steel backing plate on the concrete loads in mixture, include:

the steel formwork comprises a lap joint rod, a first hinged support, a second hinged support and a steel formwork; the steel bar connecting device comprises a lapping rod, a first hinged support, a second hinged support, a pull plate, a steel bar hole, a steel form and a steel form, wherein the lapping rod is lapped on steel pads on a new bridge and an old bridge, the first hinged support is fixed on the side edge, close to the edge, of the new bridge, the first hinged support and the second hinged support are connected and arranged on the same horizontal position, the bottom of the second hinged support is provided with the pull plate, the steel bar penetrates through the pull plate and the steel bar hole, close to the side edge, of the old bridge, the steel form is connected with the old bridge and the second hinged support, the steel form is arranged in a gap between the old bridge and the second hinged support, and reinforced concrete is poured in the steel form.

In some embodiments, the first and second anchors are connected by a lacing wire, and the first and second anchors are rotatably connected.

In some embodiments, the suspension wire is connected at one end to the suspension ring, and the second hinge base is pulled up to be at the same height level as the first hinge base.

In some embodiments, when the second hinge base is lifted to be at the same height level with the first hinge base, the second hinge base is connected with the first hinge base through a high-strength bolt.

In some embodiments, the steel form is connected with a suspension wire, and the steel form is pulled up by the suspension wire and is arranged between the old bridge and the second hinge base.

In some embodiments, the pulling plate is provided with a bar penetrating hole, the side edge of the old bridge close to the edge is provided with a bar penetrating hole corresponding to the bar penetrating hole of the pulling plate, and the steel bar penetrates through the bar penetrating holes on the two sides to connect and fixedly connect the old bridge and the second hinge seat.

In some embodiments, the steel form inner wall is coated with a lubricant.

In some embodiments, the lap bars and the steel backing plates are connected through high-strength bolts.

Compared with the prior art, the technical scheme has the following characteristics and advantages:

(1) the utility model discloses a wide hinge structure is pieced together to bridge has that the construction speed is fast, and the effect that the efficiency of construction is high adopts off-site structural component, treats that the component is prefabricated after, transports again and carries out the concatenation between the scene to the construction now, solves the problem of piling up in place to a certain extent, and need not the large-scale pulling equipment who adopts in the method of pulling in the work progress now.

(2) The utility model discloses a wide hinge structure's steel form reuse can be shown to improve the component utilization ratio to the bridge piece together.

(3) The utility model discloses the construction method of the wide articulated structure is pieced together to bridge compares with traditional bridge concatenation method, need not set up temporary stand during the construction, need not construct large-scale machinery and advance out of the field road, also need not large-scale crane pocket hanging beam body of taking one's place in advance, greatly reduced the potential safety hazard in the work progress.

Drawings

FIG. 1 is a schematic illustration of the chiseling of the old bridge edge line.

Fig. 2 is a schematic view of the connection of the first and second hinge mounts.

Figure 3 is a schematic view of the second hinge mount being pulled up.

Fig. 4 is a schematic view of the positioning of the planted bars.

Fig. 5 is a schematic diagram of an old bridge bar.

Figure 6 is a schematic view of the old bridge connected to the second hinge mount.

Fig. 7 is a schematic view of a high-strength bolt instead of a reinforcement bar.

Fig. 8 is a schematic view of a pulling template.

Fig. 9 is a schematic view of filling the gap between the old bridge and the pulling plate.

FIG. 10 is a schematic view of template detachment.

FIG. 11 is a schematic illustration of a steel form section.

In the figure: 1-chiseling lines; 2-a steel backing plate; 3-a lap joint rod; 4, paving concrete; 7-a first hinge base; 8-hoisting rings; 9-pulling a plate; 10-perforating the rib holes; 11-reinforcing steel bars; 12-a high-strength bolt; 13-penetrating ribs; 14-a steel form; 15-suspension wire; 16-old bridge; 17-new bridge; 18-steel plate; 19-a lubricant; 20-reinforced concrete; 21-second hinge base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in fig. 1 to 11, the specific construction steps of the bridge widening hinge structure of the present scheme are shown, and the method includes the following steps:

the method comprises the following steps: the edge of an old bridge (16) is cut off along a chiseling line (1), concrete pavement (4) is used on bridge surfaces of the old bridge (16) and a new bridge (17), a steel base plate (2) is placed on the concrete pavement (4), and a lapping rod (3) is placed on the steel base plate (2) at intervals.

Wherein the steel backing plates (2) are respectively arranged at the positions of the old bridge and the new bridge close to the edges, and the lapping rods (3) are lapped on the new bridge (17) and the old bridge (16).

Step two: the side edge of the new bridge (17) close to the edge is uniformly provided with a first hinged support (7), wherein the first hinged support (7) is connected with a second hinged support (21), the bottom of the second hinged support (21) is provided with a pulling plate (9), and the side edge is provided with a hanging ring (8).

Specifically, a first hinged support (7) is connected with a second hinged support (21) through a penetrating rib (13), rib penetrating holes are formed in the first hinged support (7) and the second hinged support (21), and the penetrating rib is connected in a tensioning mode through the rib penetrating holes in the hinged supports, so that the second hinged support (21) can be rotatably connected with the first hinged support (7) through the penetrating rib (13). The first hinge base (7) and the new bridge (17) are connected by welding.

In a natural state, the first hinge seat (7) and the second hinge seat (21) are vertically arranged, namely, the first hinge seat (7) is fixed on the side edge of the new bridge (17) and is kept horizontal with the horizontal plane of the new bridge, and the second hinge seat (21) naturally droops under the action of gravity and is kept vertical with the first hinge seat (7).

Step three: one end of the hanging wire (15) is connected with the hanging ring (8), the other end of the hanging wire is connected with the lapping rod (3), the hanging wire (15) on the lapping rod (3) is manually pulled up for the first time, meanwhile, the second hinged support (21) is driven to rise, the second hinged support (21) is pulled up to the same horizontal position as the first hinged support (7), and bar planting positioning is carried out.

The suspension wire (15) is wound and connected on the suspension ring (8), and the other end is also wound and connected on the lapping rod (3). When the lifting wire (15) needs to be pulled, the lifting wire (15) wound on the lapping rod (3) is loosened to pull the lifting wire (15) until the second hinged support (21) and the first hinged support (7) are located at the same horizontal position, and the steel bar planting positioning is carried out.

And it is worth mentioning that the lengths of the second hinge base (21) and the first hinge base (7) are controlled as follows: when the first hinge base (7) and the second hinge base (21) are at the same horizontal position, the second hinge base (21) and the old bridge (16) are still separated by a certain distance.

Step four: and forming corresponding reinforcement penetrating holes (10) on the side edges, close to the edges, of the old bridge (16) according to the positions of the reinforcement penetrating holes (10) in the pulling plate (9), and implanting reinforcing steel bars (11) into the second hinge seats (21).

According to fig. 5, the steel bar (11) is first embedded in the second hinge base (21) which is lapped on the lapping plate (13) through the suspension wire (15) to ensure the stability, and the steel bar is first inserted into the bottom plate deeper and then slowly pulled out to be embedded in the old bridge (16).

Step five: and (3) penetrating the reinforcing steel bar (11) into the reinforcing steel bar penetrating hole (10) on the old bridge (16) through the reinforcing steel bar penetrating hole (10) on the pulling plate (9) to realize the connection and fixation of the old bridge (16) and the second hinged support (21).

Step six: and removing the penetrating rib (13) between the first hinged support (7) and the second hinged support (21), and fixing the high-strength bolt (12) through the connecting hole between the first hinged support (7) and the second hinged support (21).

In the step, the high-strength bolt (12) is used for replacing the through rib (13), so that the connection between the first hinge base (7) and the second hinge base (21) is firmer.

Step seven: the method comprises the steps of coating a lubricant on the inner wall of a steel template (14) in advance, connecting a suspension wire (15) to the steel template (14), pulling the steel template (14) to a gap between an old bridge (16) and a pulling plate (9) through the pulling suspension wire (15), and fixing the other end of the suspension wire (15) on a lap joint rod (3).

In this scheme, steel form reuse can show improvement component utilization ratio. And the steel form can be prefabricated in advance and is fixed between the gaps between the old bridge (16) and the pulling plate (9) in a pulling way on site.

Step eight: the steel form (14) is filled with reinforced concrete (20).

In this way, the gap between the pulling plate (9) and the old bridge (16) is filled, and uneven stress is prevented.

Step nine: and after the reinforced concrete (20) is poured, the lap joint rods (3) are taken down, and after the reinforced concrete (20) is solidified, the steel templates (14) can automatically fall off under the dead weight.

And (5) repeating the steps (1) to (10) until the construction of all the hinge structures on the new bridge and the old bridge is completed.

In the scheme, the second hinged support (21) can keep the same horizontal plane with an old bridge (16) by pulling up the lap joint rod (3) for the first time and the second time, the second hinged support is connected with the old bridge (16) better, the high-strength bolt (12) is used for replacing the penetrating rib (13), the connection between the first hinged support (7) and the second hinged support (21) is tighter, the connection between the pulling plate (9) and the old bridge (16) is tighter by planting the reinforcing rib at the edge of the old bridge (16), the gap between the old bridge (16) and the pulling plate (9) is filled by the steel template (14), the stress between the new bridge and the old bridge is even, and finally the top plate is sealed to complete the hinged structure of the new bridge and the old bridge.

The lap joint rod (3) is connected with the steel base plate (2) through the high-strength bolt, and in order to avoid the undersize of friction force between the steel base plate (2) and the concrete pavement (4), a plurality of patterns are scraped at the bottom of the steel base plate (2) to increase the friction force. The first hinged support (7) and the second hinged support (21) are connected through a pre-penetrated bar, and finally the bar is removed to be replaced by a high-strength bolt (12) during the process of recovering; the steel moulding plate (14) is connected with the edge of the old bridge by pre-implanting steel bars (11) and then penetrating through the steel moulding plate (14); the second hinged support (21) is connected with the old bridge through bar planting and then hinged with the pulling plate (9).

In addition, this scheme provides a wide hinge structure is pieced together to bridge in addition for connect new bridge (17) and old bridge (16), lay concrete mixed dress (4) on new bridge (17) and old bridge (16), place steel backing plate (2) on concrete mixed dress (4), include:

the steel formwork comprises a lap joint rod (3), a first hinged support (7), a second hinged support (21) and a steel formwork (14);

the steel backing plate (2) of new bridge (17) and old bridge (16) is lapped in overlap joint pole (3) wherein, first free bearing (7) are fixed and are close to the side on edge in new bridge (17), same horizontal position is arranged in first free bearing (7) and second free bearing (21) connection, the bottom of second free bearing (21) is equipped with arm-tie (9), reinforcing bar (11) pass arm-tie (9) and old bridge (16) and are close to wearing muscle hole (10) on the side on edge of edge and connect old bridge (16) and second free bearing (21), steel form (14) are arranged in the clearance between old bridge (16) and second free bearing (21), reinforced concrete (20) are pour in steel form (14).

The first hinge base (7) is connected with the second hinge base (21) through a penetrating rib (13), and the first hinge base (7) is rotatably connected with the second hinge base (21). The first hinged support (7) and the second hinged support (21) are connected in a tensioned manner through a rib penetrating hole in the hinged support through a rib penetrating manner.

One end of the hoisting wire (15) is connected with the hoisting ring (8), and the second hinged support (21) is manually lifted to be at the same height level with the first hinged support (7). When the second hinge base (21) is lifted to be at the same height level with the first hinge base (7), the second hinge base (21) is connected with the first hinge base (7) through a high-strength bolt (12).

The steel formwork (14) is connected with a suspension wire (15), the steel formwork (14) is lifted through the suspension wire (15) and placed between the old bridge (16) and the second hinged support (21), and the other end of the suspension wire (15) is connected to the lapping rod (3) in the process of pouring reinforced concrete (20) in the steel formwork (14).

The pulling plate (9) is provided with a bar penetrating hole (10), the side edge of the old bridge (16) close to the edge is provided with a bar penetrating hole (10) corresponding to the bar penetrating hole (10) of the pulling plate (9), and the reinforcing steel bar (11) penetrates through the bar penetrating holes (10) on the two sides to be connected and fixedly connected with the old bridge (16) and the second hinged support (21).

The inner wall of the steel moulding plate (14) is coated with lubricant (19).

In addition, the first hinged support (7) is uniformly arranged on the side edge of the new bridge (17) close to the edge, is kept horizontal to the horizontal plane of the new bridge and is positioned in the same horizontal direction with the new bridge (17). In a non-pulling-up state, the second hinged support (21) is vertical to the first hinged support (7) under the action of self weight.

The lap joint rod (3) is connected with the steel base plate (2) through the high-strength bolt, and in order to avoid the undersize of friction force between the steel base plate (2) and the concrete pavement (4), a plurality of patterns are scraped at the bottom of the steel base plate (2) to increase the friction force.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. The utility model provides a wide hinge structure is pieced together to bridge for connect new bridge (17) and old bridge (16), lay concrete and thoughtlessly adorn (4) on new bridge (17) and old bridge (16), place steel backing plate (2) on concrete thoughtlessly adorns (4), its characterized in that includes:

2. The bridge widening hinge structure according to claim 1, wherein the first hinge base (7) and the second hinge base (21) are connected through a penetrating rib (13), and the first hinge base (7) and the second hinge base (21) are rotatably connected.

3. The bridge widening hinge structure according to claim 2, wherein the suspension wire (15) is connected at one end to the suspension ring (8) and pulls the second hinge base (21) to the same height level as the first hinge base (7).

4. The bridge widening hinge structure according to claim 3, characterized in that when the second hinge socket (21) is lifted to the same height level as the first hinge socket (7), the second hinge socket (21) is connected with the first hinge socket (7) through the high-strength bolt (12).

5. The bridge widening hinge structure according to claim 1, wherein a suspension wire (15) is connected to the steel form (14), and the steel form (14) is pulled up by the suspension wire (15) and placed between the old bridge (16) and the second hinge base (21).

6. The bridge widening hinge structure according to claim 1, wherein the pulling plate (9) is provided with a bar penetrating hole (10), the side edge of the old bridge (16) close to the edge is provided with a bar penetrating hole (10) corresponding to the bar penetrating hole (10) of the pulling plate (9), and a steel bar (11) penetrates through the bar penetrating holes (10) on the two sides to connect and fixedly connect the old bridge (16) and the second hinge seat (21).

7. The bridge widening hinge structure according to claim 1, wherein the inner wall of the steel form (14) is coated with a lubricant (19).

8. The bridge widening hinge structure according to claim 1, wherein the lap joint rods (3) and the steel backing plates (2) are connected through high-strength bolts.