KR20120015807A - Concrete structure for bridge and its manufacturing method - Google Patents

Abstract

PURPOSE: A concrete structure for the top of bridge and a manufacturing method thereof are provided to prevent damage through fine horizontality control and free rotation of a lifting hook when lift is done. CONSTITUTION: A concrete structure(10) for the top of bridge comprises a horizontality control device(20). The horizontality control device comprises a nut member(30), a bolt member(40), and a lift and horizontality control unit(50). The nut member is fixed to the penetration part(15) of the concrete structure. The bolt member is screwed to the nut member passing through the penetration part. The bolt member controls the gap between the concrete structure and deck(1) depending on length of the lower end protruded to the lower part of the concrete structure. The lift and horizontality control unit is detachably coupled to the upper end of the bolt member.

Description

Concrete structure for bridge deck and its manufacturing method

The present invention relates to a concrete structure for a bridge deck and a method of manufacturing the same, and more particularly, having a structure for adjusting the level of the concrete structure and a lifting and leveling means integrally having a configuration for lifting the concrete structure. It relates to a concrete structure for bridge deck and a method of manufacturing the same.

In general, the bridge is an elevated structure that spans across rivers, valleys, lakes and roads, and consists of a superstructure consisting of slabs and girders, and a substructure consisting of shifts and piers and foundation slabs.

In addition, the upper plate of the bridge is provided with a concrete structure for forming the vehicle derailment protection wall, pipeline wall and screen.

An example of such a concrete structure is disclosed in Korean Patent Publication No. 10-2009-81996.

In the above technique, a concrete structure having a vehicle derailment barrier, a pipeline wall, and a screen is manufactured in advance in a factory, and then transported to a construction site, and then lifted and seated the concrete structure by using a crane.

In this case, since the flatness of the bridge is not even, the horizontal structure of each concrete structure is adjusted after lifting the concrete structure to the top plate of the bridge.

Therefore, in the concrete structure, a configuration for lifting the concrete structure with a crane and a configuration for adjusting the level of the concrete structure are separately installed.

Here, as a configuration for adjusting the level of the concrete structure, the spacer is inserted between the concrete structure and the top plate to adjust the horizontal.

However, in the conventional concrete structure, a configuration for lifting the concrete structure with a crane and a configuration for adjusting the horizontal level of the concrete structure are separately installed, so that the structure is complicated and the number of parts also increases, thereby increasing the manufacturing cost. In addition, the leveling work of the concrete structure is inconvenient, of course, there was a problem that fine leveling is very difficult.

An object of the present invention for solving the above-mentioned problems is to provide a lifting device and a horizontal control means integrally having a configuration for adjusting the level of the concrete structure and a configuration for lifting the concrete structure, the structure is simple and the number of parts The manufacturing cost is reduced and fine horizontal adjustment is possible, and the lifting ring rotates freely to prevent breakage during lifting, and also to lift the concrete structure with the bridge deck and the concrete structure seated on the bridge deck. It is to provide a concrete structure for the bridge deck that can simplify the horizontal adjustment and a method of manufacturing the same.

The present invention for achieving the above object, in the concrete structure for the bridge top plate is installed on the top plate of the bridge and provided with a horizontal adjustment device, the horizontal adjustment device, the through portion formed to penetrate perpendicularly to the concrete structure A nut member fixed to the bolt member and a bolt member which is screwed to the nut member and adjusts a gap between the concrete structure and the upper plate according to a length of the lower end protruding downward of the concrete structure, and an upper end portion of the bolt member. Detachable coupled and characterized in that it comprises a lifting and leveling means integrally provided with a configuration for lifting the concrete structure and the configuration for lifting the concrete structure by rotating the bolt member.

In addition, in the method of manufacturing a concrete structure for the bridge top plate is installed on the top plate of the bridge and provided with a horizontal adjustment device, assembling a formwork of a certain form, the nut member, reinforcement plate and ring shape in the center of the bolt member Assembling a protective member of the bolt, and screwing the protective member in the form of a truncated cone to the upper and lower ends of the bolt member, respectively, fixed to a specific position in the formwork, and placing concrete in the formwork, and the concrete in the formwork After being cured, removing the formwork and removing the protective member of the truncated conical shape from the bolt member, and comprising the step of coupling the lifting and leveling means to the upper end of the bolt member. do.

The present invention, by providing a lifting and leveling means integrally having a configuration for adjusting the level of the concrete structure seated on the top plate of the bridge and a configuration for lifting the concrete structure, the structure is simple, the number of parts is reduced and the manufacturing cost In addition to this reduction, fine horizontal adjustment is possible, and the lifting work of the concrete structure with the bridge deck and the horizontal adjustment of the concrete structure seated on the bridge deck can be easily performed.

In addition, the lifting ring is rotatably coupled to the rotating ring, the rotating ring is rotatably coupled to the horizontal adjustment member, when lifting the concrete structure by a crane, the lifting ring in the lifting direction is free to the horizontal adjustment member The material can be rotated to prevent breakage of the lifting ring.

And, by installing a friction preventing member between the bolt member and the upper plate, by rotating the bolt member by using the lifting and horizontal adjusting means, when the horizontal adjustment of the concrete structure, the friction between the bolt member and the upper plate is minimized horizontal adjustment work You can do it smoothly.

1 is a perspective view showing a state in which a concrete structure according to the present invention is installed on the bridge top plate,
Figure 2 is a partial cross-sectional perspective view showing a state in which the concrete structure according to the invention installed on the bridge deck,
Figure 3 is a cross-sectional view showing a part installed horizontal adjustment device in the concrete structure according to the present invention,
4 is a perspective view showing a horizontal adjustment device of the concrete structure according to the present invention,
5 is an exploded perspective view of FIG. 4;
Figure 6 is a perspective view showing a state in which the lifting ring rotates freely in the lifting and leveling means of the concrete structure according to the present invention,
7 is a perspective view showing an assembly assembled first in the formwork before the concrete is poured for the production of concrete structures according to the present invention;
8 is an exploded perspective view of FIG. 7;
Figure 9a is a perspective view showing a state in which a plurality of formwork is assembled to lay down the concrete structure according to the invention,
Figure 9b is a perspective view showing a state in which a plurality of formwork is assembled to turn over the concrete structure according to the invention,
10 is a perspective view illustrating a state in which the concrete structure according to the present invention is lifted by a crane.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Repeated description of the same parts as in the prior art will be omitted.

1 is a perspective view showing a state in which the concrete structure according to the present invention is installed on the bridge top plate, Figure 2 is a partial cross-sectional perspective view showing a state in which the concrete structure according to the present invention is installed on the bridge top plate, Figure 3 is a concrete according to the present invention Figure 4 is a cross-sectional view showing a portion of the leveling device installed in the structure, Figure 4 is a combined perspective view showing a leveling device of the concrete structure according to the invention, Figure 5 is an exploded perspective view of Figure 4, Figure 6 is a concrete according to the invention Figure 7 is a perspective view showing the lifting ring rotates freely in the lifting and leveling means of the structure, Figure 7 is a combined perspective view showing the assembly first assembled in the formwork before the concrete is laid for the production of concrete structures according to the present invention, Figure 8 is an exploded perspective view of Figure 7, Figure 9a is a concrete sphere according to the present invention 9 is a perspective view illustrating a state in which a plurality of formwork is assembled to lay down a sculpture, and FIG. 9B is a state in which a plurality of formwork is assembled to invert and manufacture a concrete structure according to the present invention, and FIG. It is a perspective view showing a state of lifting the concrete structure with a crane.

As shown, the concrete structure for bridge deck 10 according to the present invention, after manufacturing in advance in the factory through the formwork (5), after transporting to the construction site, the top plate (1) of the bridge through the crane (6) Will be lifted up and seated.

The concrete structure 10, the vehicle derailment barrier 11 is formed in the inner direction of the bridge top plate 1, the screen 13 is formed in the outer direction of the bridge top plate 1, as shown in Figs. And a conduit wall 12 formed between the vehicle derailment protection wall 11 and the screen 13.

Of course, the concrete structure 10 may be changed in various forms according to the construction site or the purpose of design.

Method of connecting the concrete structure 10 to the upper plate (1) of the bridge is disclosed in Korean Patent Publication No. 10-2009-81996, so a detailed description thereof will be omitted.

In addition, the concrete structure 10 of the present invention is provided with a horizontal adjusting device 20, the plurality of through parts 15 to be vertically penetrated so that the horizontal adjusting device 20 can be installed in the concrete structure 10. Formed.

It is preferable that a total of four penetrating portions 15 are formed at positions close to each corner side of the concrete structure 10.

The horizontal adjusting device 20 is composed of a nut member 30, the bolt member 40, and the lifting and leveling means (50).

The nut member 30 is fixedly installed in the penetrating portion 15 of the concrete structure 10. In this case, the nut member 30 is formed at a height greater than that of the nut member 30 in the vertical center of the penetrating portion 15. The support part 16 which fixes and supports the nut member 30 is formed.

Here, the support 16 is formed to surround the nut member 30 to support the nut member 30 in a fixed manner.

In addition, the support 16 is provided with a reinforcing plate 70 is embedded in the horizontal direction on the upper side of the nut member 30 to reinforce the support 16.

That is, the reinforcement plate 70 is a rectangular iron plate, is installed across the center of the support portion 16 in the horizontal direction to reinforce the support portion 16, the bolt member in the center of the reinforcement plate 70 The through hole 70a is formed so that the 40 may penetrate.

On the other hand, the height of the support 16 for fixing the nut member 30 is preferably formed larger than the height of the nut member 30 to ensure sufficient strength, which is the concrete structure 10 through the crane (6) This is to support the load of the concrete structure 10 when lifting or leveling).

In addition, when lifting the concrete structure 10 by lifting, the support 16 and the reinforcing plate 70 is to support the nut member (30).

On the other hand, the support member 16 is installed so that the nut member 30, the reinforcement plate 70, the ring-shaped protection member 65 in order from the lower side to the upper side in order to be stacked.

The bolt member 40 is screwed to the nut member 30 while penetrating the through part 15.

The bolt member 40 is rotated through the lifting and leveling means 50, at this time, the bottom of the bolt member 40 according to the length of the protruding downward direction of the concrete structure 10 the concrete structure The gap between the 10 and the top plate 1 is to be adjusted.

That is, when the bolt member 40 is rotated through the lifting and leveling means 50, the concrete structure 10 is able to be horizontally adjusted while being lifted a certain amount from the bridge top plate 1. .

In addition, by rotating each bolt member 40 installed in four places of the concrete structure 10 it is possible to make a fine horizontal adjustment.

In addition, when the horizontal adjustment of the concrete structure 10 through the rotation of the bolt member 40, the bolt member 40 and the upper plate (to minimize the friction between the bolt member 40 and the upper plate (1) ( Between 1) the friction preventing member 80 is installed.

The friction preventing member 80 is formed of a rectangular iron plate.

In addition, the lower end of the bolt member 40 in contact with the friction preventing member 80 is preferably formed of a curved surface (40a) to further minimize the friction.

Therefore, when the horizontal adjustment of the concrete structure 10 by rotating the bolt member 40 by using the lifting and horizontal adjusting means 50, the friction between the bolt member 40 and the top plate (1) is minimized to adjust the horizontal I can work smoothly.

Then, the bolt member corresponding to the upper and lower sides of the support portion 16, as shown in Figures 7 and 8 so as to protect the bolt member 40 during the concrete casting for the production of the concrete structure (10). On the 40 side, each of the protection member 60 of the truncated conical shape is screwed symmetrically, the ring-shaped protection member 65 is provided on the upper side of the reinforcing plate 70 in the support 16,

The truncated cone-shaped protection member 60 is separated from the bolt member 40 after curing of the concrete structure 10 is removed.

That is, when concrete is cast for the manufacture of the concrete structure 10, when the concrete is solidified to the outer peripheral surface of the bolt member 40 is not possible to rotate the bolt member 40, the bolt member 40 In order to protect, the remaining portion of the bolt member 40 except for the portion where the nut member 30 is coupled is protected by the ring-shaped protective member 65 and the truncated cone-shaped protective member 60.

On the other hand, the screw member 61 is formed integrally to be screwed to the bolt member 40 inside the protective member 60 of the truncated cone shape, after curing of the concrete structure 10, the protective member of the truncated cone shape ( It can be easily removed and removed simply by rotating 60).

And, the lifting and horizontal adjustment means 50, and is detachably coupled to the upper end of the bolt member 40 and the configuration for adjusting the level of the concrete structure 10 by rotating the bolt member 40 and It is made to integrally provided with a configuration for lifting the concrete structure (10).

The lifting and horizontal adjusting means 50, the lower end is screwed to the upper end of the bolt member 40 to rotate the bolt member 40, the upper end is a horizontal adjustment member formed with a bolt head 52 And a rotation ring 56 rotatably coupled to an outer circumferential surface of the horizontal adjustment member 51 and a lifting ring 55 rotatably coupled to both ends of the rotation ring 56.

The horizontal adjusting member 51 is a configuration for adjusting the horizontal of the concrete structure 10 by rotating the bolt member 40, the lifting ring 55 is a configuration for lifting the concrete structure (10).

That is, when the horizontal adjustment member 51 is screwed to the upper end of the bolt member 40 by using the bolt head 52, initially, only the horizontal adjustment member 51 is rotated, the screw is progressed, the screw After the coupling is completed, the horizontal adjusting member 51 and the bolt member 40 are rotated together, thereby allowing horizontal adjustment of the concrete structure 10.

In addition, the outer circumferential surface of the horizontal adjustment member 51, the upper and lower flanges 53 are protruded in the radial direction so that the rotary ring 56 does not escape in the up and down directions.

In addition, the lifting ring 55 is formed to be bent in the form of a "U" and at this time both ends are bent to be perpendicular to the outer circumferential surface of the rotary ring 56 is rotatably coupled to the rotary ring 56.

In this way, the lifting ring 55 is rotatably coupled to the rotary ring 56, the rotary ring 56 is rotatably coupled to the horizontal adjustment member 51, by the crane 6 concrete structure ( In the lifting of 10), as shown in Figure 6, the lifting ring 55 in the lifting direction can be freely rotated with respect to the horizontal adjustment member 51 is prevented the breakage of the lifting ring (55).

Hereinafter, the manufacturing method of the concrete structure for bridge deck 10 according to the present invention will be described.

A, the factory proceeds to assemble the formwork 5 of a certain form.

The formwork 5 is assembled in plural in order to manufacture the concrete structure 10 having the vehicle derailment protection wall 11, the pipe wall 12, and the screen 13.

That is, as shown in FIG. 9A, a plurality of formworks 5 may be assembled so as to lay down the concrete structure 10, and as shown in FIG. 9B, a plurality of formworks 5 may be made upside down to produce the concrete structure 10. It can also be assembled.

I. After the above steps, as shown in Fig. 7 and 8, the nut member 30, the reinforcing plate 70 and the ring-shaped protection member 65 in the center of the bolt member 40, assembled, the bolt member After screwing the protective member 60 in the form of a truncated cone to the upper and lower ends of the 40, the step of fixing the assembly at a specific position in the formwork 5 is performed.

At this time, the assembly is installed at four positions in the formwork (5).

All. After proceeding with the step, proceeds to the step of pouring concrete in the formwork (5).

When concrete is poured into the formwork 5, only the outer regions of the protection members 60 and 65 are placed within the formwork 5.

la. After the above step, after the concrete in the formwork 5 is cured, removing the formwork 5 and the step of separating and removing the protective member 60 of the truncated conical shape from the bolt member 40 Proceed.

When the concrete is cured and the protection member 60 of the form 5 and the truncated cone shape is removed, the through part 15 and the support part 16 are formed in the concrete structure 10, and the support part 16 In the inside of the nut member 30, the reinforcing plate 70, a ring-shaped protection member 65 is embedded.

hemp. After proceeding with the step, the step of coupling the lifting and leveling means 50 to the upper end of the bolt member 40 to complete the manufacture.

The concrete structure 10 manufactured as described above is transported to a construction site by lying down on a vehicle.

Thereafter, as shown in FIG. 2, four anti-friction members 80 per concrete structure 10 are disposed on the bridge top plate 1, and the concrete structure 10 is lifted using the crane 6 to bridge the top plate ( It is seated on the four friction preventing members 80 placed in 1).

At this time, the crane 6 can be easily lifted by walking on the lifting hook 55 of the lifting and leveling means 50.

Subsequently, by rotating the bolt member 40 by rotating the horizontal adjusting member 51 of the lifting and leveling means 50, it is possible to finely adjust the level of the concrete structure 10.

After lifting the concrete structure 10 to the upper plate (1) of the bridge in this manner and after finishing the horizontal adjustment, the lifting and horizontal adjusting means 50 is coupled to the bolt member 40, and then the concrete The concrete is injected into the gap between the structure 10 and the upper plate 1 to connect the concrete structure 10 and the upper plate 1, and the concrete is also injected into the through part 15 of the concrete structure 10. Filled up.

1: bridge deck 5: formwork
10 concrete structure 15 penetrating portion
16: support portion 20: leveling device
30: nut member 40: bolt member
50: lifting and leveling means 51: leveling member
52: bolt head 53: flange
55: lifting ring 56: rotating ring
60: truncated cone-shaped protective member 65: ring-shaped protective member
70: reinforcing plate 80: friction preventing member

Claims (6)

In the concrete structure for the bridge top plate is mounted on the top plate (1) of the bridge and provided with a horizontal adjusting device (20),
The horizontal adjusting device 20,
A nut member 30 fixedly installed in the through part 15 formed to penetrate the concrete structure 10 vertically;
The bolt member 40 is screwed to the nut member 30 and adjusts the distance between the concrete structure 10 and the upper plate 1 according to the length of the lower portion protruding downward of the concrete structure 10. ,
Removably coupled to the upper end of the bolt member 40 as well as rotating the bolt member 40 to adjust the level of the concrete structure 10 and the structure for lifting the concrete structure 10 integrally Concrete structure for the bridge deck, characterized in that it comprises a lifting and horizontal adjustment means (50) provided. The method of claim 1,
The lifting and leveling means 50 is,
A lower end portion is screwed to an upper end of the bolt member 40 so that the bolt member 40 can be rotated, and a horizontal adjustment member 51 having a bolt head 52 formed at an upper end thereof;
Bridge top plate, characterized in that consisting of a rotating ring 56 rotatably coupled to the outer circumferential surface of the horizontal adjusting member 51 and a lifting ring 55 both ends rotatably coupled to the outer circumferential surface of the rotating ring 56. For concrete structures. The method of claim 1,
In the center of the vertical direction of the penetrating portion 15 is formed with a height greater than the nut member 30 is formed a support portion 16 for holding and supporting the nut member 30,
The support part 16 is a concrete structure for the bridge deck, characterized in that the reinforcing plate 70 is embedded in the horizontal direction on the upper side of the nut member 30 to reinforce the support part 16 is installed. The method of claim 3, wherein
Protection member in the form of a truncated cone on the side of the bolt member 40 corresponding to the upper and lower sides of the support portion 16 so as to protect the bolt member 40 during the concrete casting for the production of the concrete structure 10 60 is symmetrically screwed, and a ring-shaped protection member 65 is installed above the reinforcing plate 70 in the support 16.
The truncated cone-shaped protection member 60 is a concrete structure for the bridge deck, characterized in that separated from the bolt member 40 after curing of the concrete structure (10). The method of claim 1,
When the horizontal adjustment of the concrete structure 10 through the rotation of the bolt member 40, the bolt member 40 and the upper plate (1) to minimize the friction between the bolt member 40 and the upper plate (1) Between the friction preventing member 80 is a concrete structure for the bridge deck, characterized in that the installation. In the manufacturing method of the concrete structure for the bridge top plate is installed on the top plate (1) of the bridge and provided with a horizontal adjusting device (20),
Assembling the formwork (5) of a certain shape,
The nut member 30, the reinforcement plate 70, and the ring-shaped protective member 65 are assembled in the center of the bolt member 40, and the upper and lower ends of the bolt member 40 have a truncated cone-shaped protective member 60. After screwing each of the, and fixing to a specific position in the formwork (5),
Pouring concrete into the formwork (5);
After the concrete in the formwork (5) is cured, removing the formwork (5) and removing the protective member 60 of the truncated cone shape from the bolt member (40), and
The method of manufacturing a concrete structure for a bridge deck, characterized in that it comprises the step of coupling the lifting and horizontal adjustment means 50 to the upper end of the bolt member (40).

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