KR101774046B1 - Assembled temporary unite girder bridge - Google Patents

Abstract

The present invention relates to a prefabricated integrated temporary bridge comprising: a plurality of piers; a girder fixated on an upper surface of the pier having a nut installed in a longitudinal direction; a lining board disposed on the girder in a direction perpendicular to the pier and a bridge axis to be fixated by a bolt; and a filling board inserted between the lining boards to fill a space between the lining boards. According to an embodiment of the present invention, when a worker fastens the bolt to the nut on the lining board while the lining board is disposed on the girder including the nut, a structure capable of moving together as the lining board is easily fixated on the girder; thereby providing advantages capable of largely increasing rigidity of a lining structure, and capable of remarkably reducing a work load and a construction time due to a simple site assembly. According to an embodiment of the present invention, the entire lining board contributes to the rigidity of the structure, thus increasing a material saving effect due to increase of the rigidity to lower a construction expense. Moreover, reinforcement and correction of the integrated lining structure are facilitated with respect to a changed situation likely to occur after site installation; thereby being able to actively cope with a situation of the site.

Description

[0001] Assembled temporary unite girder bridge [0002]

More particularly, the present invention relates to a prefabricated, integrated type, and more specifically, a method of manufacturing a prefabricated integrated type bridge, which can simplify on-site assembly and reduce the workload and the air dramatically shortening the cost, and contributes to the rigidity of the structure The present invention relates to a prefabricated integrated type bridge capable of responding positively to a situation in the field because the cost of construction is reduced due to an increase in rigidity, .

In general, bridges should be equipped with workbenches or transport passageways to carry equipment necessary for road construction or repair work, or traffic or pedestrian traffic paths at deep water depths due to the rainy season, flood, .

Due to these characteristics, the lifetime of a hypothetical bridge is in principle several months to several years, and it is not installed semi-permanently like a general bridge.

In recent years, however, the use of temporary bridges has been diversified in purpose and use as bypass bridges, temporary bridges for construction, permanent bridges, permanent bridges, , A structurally stable hypothetical bridge is required, and the demand for a larger hypothetical bridge is also increasing.

Such conventional technology is Korean Patent No. 10-1205823 (a temporary structure including a clamshell assembly and a construction method).

However, such conventional techniques have the following problems.

First, in the conventional temporary structure, since the worker has to separately install the bolts and nuts at the lower portion of the laminating board (body) in fixing the mold and the laminating board (body), the work is very cumbersome and difficult, , There was a fundamental problem that the construction cost was excessively increased due to a long construction period.

In addition, there is a structural problem that the entire upper plate (sieve) can not be coupled with the mold, thereby limiting the improvement of the structural performance of the double structure. There is a problem that maintenance is difficult.

1. Korean Registered Patent No. 10-1205823 (Hybrid Structure Including Covering Assembly and Method of Construction / Nov. 12, 2010)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a prefabricated integrated type bridge capable of reducing the work load and the air volume remarkably,

It is another object of the present invention to provide a method of manufacturing a composite structure capable of reducing the cost of construction due to a greater material saving effect due to an increase in stiffness since all of the laminates contribute to the rigidity of the structure, So that it can actively cope with the situation in the field.

According to an aspect of the present invention,

A plurality of piers;

A girder fixed to an upper surface of the bridge pier and having a nut along its longitudinal direction;

And is fixed to the girder by means of bolts fastened to the girders in the direction of the throttling axis and perpendicular to the throttling direction and fastened to the nuts of the girder, A base plate arranged in the direction of the base plate and connected to each other by a bolt and a nut;

And a filler plate having rib grooves in which the ribs are accommodated, the filler plates sandwiched between the flat plate plates disposed in the direction perpendicular to the throttling axis to fill spaces between the flat plate plates.

Further, the present invention is characterized in that a lattice-shaped reinforcing bar is reinforced inside the base.

The present invention is characterized in that bolts are installed along the longitudinal direction of the girder, the seat portion of the seat plate is inserted into the bolt, and the nut is fastened to the bolt through which the girder and the seat plate are integrally formed.

According to this embodiment, when the operator attaches the bolts to the nuts through the nose plate in the state where the nose plate is disposed on the girder having the nut, the nose plate can be easily fixed to the girder, In particular, it is advantageous in that it is possible to drastically reduce the workload and the air (construction period) under the labor department due to the simple assembly on site, thereby greatly reducing the cost.

Further, according to the present embodiment, since the ribs are reinforced between the box-shaped base and the seating portion and the grid-shaped reinforcing bars are formed inside the base, the structural strength and stability are greatly enhanced, The total weight of the laminates can be reduced, which can greatly reduce the manufacturing cost. Further, since the weight is lighter, the transportation cost can be remarkably reduced.

According to the present embodiment, since the space between the front and back plates is filled with the filling plate and there is no gap, it is possible to fundamentally prevent the tire from being damaged, minimize the occurrence of noise during passage of the vehicle, It is advantageous that a separate cleaning work is basically unnecessary.

In addition, according to the present embodiment, since the entirety of the laminates contributes to the stiffness of the structure, the cost reduction of the material due to the increase of the stiffness becomes greater, and the reinforcement and correction of the integral type structure It is advantageous to actively cope with the situation in the field.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a prefabricated integral type of a suspended bridge according to the present invention; FIG.
FIG. 2 is a perspective view showing a part of a prefabricated integral type of a suspended bridge according to the present invention. FIG.
FIG. 3 is a perspective view of another embodiment of the prefabricated integral type of a suspended bridge according to the present invention. FIG.
FIG. 4 is a bottom perspective view of a combined assembly type temporary bridge according to the present invention, which is an excerpt of a lap board. FIG.
FIG. 5 and FIG. 6 are cross-sectional views of the main part of the assembled integral type of the temporary bridge according to the present invention.

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

FIG. 1 is a perspective view of a prefabricated integrated type bridge according to the present invention, FIG. 2 is a perspective view of a prefabricated integrated type prefabricated bridge according to the present invention, and FIG. 3 is a perspective view of another prefabricated prefabricated bridge FIG. 4 is a bottom perspective view of a composite type built-in type bridge according to the present invention, and FIG. 5 and FIG. 6 are cross-sectional views of a prefabricated integrated type bridge according to the present invention.

1 to 6, the prefabricated integrated type bridge according to an embodiment of the present invention includes a pier 10 and a girder 20, a flat plate 30, and a filler plate 40, Since the stiffness of the stiffness structure of the stiffness structure can be greatly increased because the stiffness of the stiffness plate 30 is fixed to the stiffening plate 20 so that the stiffness of the stiffness structure can be greatly increased, There is an advantage that can be saved.

Referring to FIG. 1, the pier 10 is a well-known structure in which a frame (frame) having a predetermined shape is formed by using H-shaped or I-shaped steel, and the frame (frame)

In the case of this embodiment, H-shaped steel bars are formed at regular intervals on the ground to form pillars, I-shaped steel bars are arranged between the upper ends of the pillars thus formed, and then interconnected via bolts and nuts. The L-shaped members were arranged in an X-shape and reinforced.

1 to 6, the girder 20 is an H-shaped steel or an I-shaped steel, which is fixed to the upper surface of the pier 10 in the case of the present embodiment, and a method of fixing is a welding or a bolt, a nut, , But it is recommended to fix the bolts and nuts between the bolts and the nuts when considering the structural stability, the strong bonding force, and the ease of assembly and disassembly.

The girder 20 may be composed of a mold beam 21 arranged in parallel to the longitudinal direction of the pier 10 and a cross beam 22 installed between the mold beam 21.

The mold beam 21 and the mold beam 21 arranged in the longitudinal direction are mutually connected and fixed via the bolts B and N and the mold beam 21 and the cross beam 22 are also connected to the bolts B ) And the nut (N), it is possible to easily and easily connect the main body and the disassembly work.

A through hole 21a is formed along the longitudinal direction of the mold beam 21. A nut N is fixed to the lower portion of the through hole 21a through welding. (32a) of the base plate (30).

That is, the through-hole 21a of the mold beam 21 and the through-hole 32a of the flat plate 30 and the hole of the nut N are communicated with each other, So that it becomes an integral type.

1 to 6, the flat plate 30 is disposed on the upper surface of the girder 20 in a direction perpendicular to the throttling axis and in the direction perpendicular to the throttling axis and is supported by bolts B fastened to the nuts N of the girders 20 And is fixed to the upper surface of the girder 20.

The flat plate 30 is composed of a base 31, a seating portion 32, a rib 33 and a reinforcing bar 34.

The base 31 is manufactured by interconnecting steel plates having a certain width and thickness through welding, and the inside of the base 31 is formed into a box shape opening downward, as shown in FIG.

A bolt hole 31a is formed in the front and rear of the base 31. The bolt hole 31a penetrates through the base 31 of the other flat plate 30 installed along the longitudinal direction And communicates with the hole 31a.

The longitudinally arranged flat plates 30 are integrally formed by connecting the bolts B and the nuts N in the communicated state as described above, Because it is fixed, it is very easy to assemble, and disassembly is also very convenient.

The seat portion 32 extends from both sides of the base 31 toward the mold beam 21 and rests on the mold beam 21. [

A through hole (32a) is formed in the seating part (32) at regular intervals along the longitudinal direction.

The through hole 32a of the seat portion 32 is in communication with the through hole 21a of the mold beam 21. The bolt B is inserted into the through hole 32a, As the nut 30 is fastened with the nut N formed on the lower surface of the mold beam 21, the lid plate 30 is integrated with the girder 20.

The rib 33 is integrally formed with the side surface of the base 31 and the upper surface of the seating portion 32 to integrally reinforce the base 31 and the seating portion 32.

The ribs 33 may be integrally connected to each other via welding by being brought into contact with the side surface of the base 31 and the upper surface of the seating portion 32. The ribs 33 may be integrally formed with the base 31 and the seat portion 32 and the rib 33 may be integrally formed.

The reinforcing bar 34 is provided in the form of a lattice (or honeycomb) in the base 31 to function as a structural reinforcement of the base 31.

Particularly, as described above, since the grid-shaped reinforcing bars 34 are formed inside the base 31, it is possible to prevent sagging and warping even if the loads are concentrated due to the zooming. Therefore, it is structurally very stable, Since the weight is considerably smaller than that of the case 31, the transportation is considerably convenient.

According to the present embodiment, the ribs 33 are reinforced between the box-shaped base 31 and the seat portion 32, and the grid-shaped reinforcing bars 34 are formed in the base 31, It is possible to greatly reduce the manufacturing cost because the total weight of the flat plate 30 can be reduced, and furthermore, the weight can be reduced, the transportation cost can be remarkably reduced There is an advantage to be able to.

In the case of this embodiment, the nut N is welded along the longitudinal direction of the mold beam 21, but this is only one embodiment. For example, the lower portion of the through hole 21a The bolts B are welded and fixed with the bolts B sandwiched therebetween and the bolts B projecting to the upper portion of the mold beam 21 are inserted into the through holes 32a The nut 21 is fastened to the seat portion 21 by fastening the nut N to the bolt B projected in a state in which the bolt B is inserted therethrough.

In the above-described method, the through hole 21a of the mold beam 21 is made to communicate with the through hole 32a of the seat portion 32, and then the bolt B is inserted and fastened to the nut N There is an advantage that the operation is considerably convenient and the assembly time can be remarkably shortened.

1 and 2, the filler plate 40 is a box-shaped member having an approximately ∩ '-shaped cross section whose interior is opened downward. In the case of the present embodiment, the filler plate 40 And the gap between the upper and lower plates 30 and 30 is filled.

The filling plate 40 is integrally formed with the receiving grooves 41 cut along the longitudinal direction so that the ribs 33 formed at predetermined intervals along the sides of the flat plate 30 can be naturally inserted into the filling plates 40 have.

When the filler plate 40 is sandwiched between the flat plates 30, the rib 33 of the flat plate 30 is received in the receiving groove 41 of the filler plate 40, It is naturally prevented that the filler plate 40 is pushed in the throttling direction by the filler plate 40 and the rib 33 fitted in the receiving groove 41.

Therefore, according to the present embodiment, since the gap between the front and rear plates 30 is filled with the filler plate 40, there is no gap at all, so that damage to the tire can be fundamentally prevented, noise generation during vehicle passing can be minimized, It is possible to prevent various foreign substances from flowing into the space between the front and rear plates 30, so that there is an advantage that a separate cleaning work is basically unnecessary.

In the present embodiment, the top surface of the lid plate 30 and the top surface of the filler plate 40 are shown in the form of a pin. However, the top surface of the lid plate 30 and the top surface of the filling plate 40 40 may be formed so as to prevent the slip phenomenon between the vehicle wheel and the road surface due to snow or rain.

Hereinafter, the operation and effect of the present invention will be described.

First, the bridge piers 10 are installed at regular intervals where the prefabricated integrated type bridge is installed.

The mold beams 21 constituting the girders 20 are arranged and fixed in parallel along the longitudinal direction of the pier 10 so that the bolts B and (N).

Then, the laminating plate 30 is mounted on the upper surface of the girder 20, and then the laminating plate 30 is fixed to the girder 20 through the bolts B.

This will be described in more detail as follows.

The seating part 32 constituting the front plate 30 is placed on the mold beam 21 of the girder 20 so that the through hole 21a of the mold beam 21 and the through- The bolts B are inserted into the through holes 21a and 32a with the bolts B being inserted into the through holes 21a so that the bolts B are inserted into the through holes 21a and 32a, .

The baffle plates 30 arranged in the throttle direction are inserted into the bolts B through the bolt holes 31a of the base 31 constituting the baffle plate 30 and are exposed to the bolts B to connect the nuts N to each other.

That is, the girder 20 and the flat plate 30 can be structured integrally so that they can behave together.

If the rib 33 of the hollow plate 30 is inserted into the receiving groove 41 of the filling plate 40 so as to fill the space between the flat plate 30 and the flat plate 30 arranged in the direction perpendicular to the throttling axis, Installation is complete.

According to the present embodiment, when the operator fastens the bolts B to the nuts N through the louvers 30 in the state where the louvers 30 are disposed on the girders 20 having the nuts N, Since the structure can be easily fixed to the girder 20 and can be moved together, it is possible to greatly increase the rigidity of the bare-air structure, and it is possible to remarkably reduce the workload and the air (construction period) Can be greatly reduced.

According to the present embodiment, ribs 33 are reinforced between the box-shaped base 31 and the seat portion 32, and a lattice-shaped reinforcing strip 34 is formed inside the base 31, It is possible to greatly reduce the manufacturing cost by reducing the total weight of the laminating board 30 while being able to sufficiently cope with warping and compressive stress and greatly reducing the manufacturing cost, There is an advantage that can be saved.

According to the present embodiment, since the space between the front and rear plates 30 is filled with the filler plate 40, there is no gap, so that damage to the tire can be fundamentally prevented, the occurrence of noise during vehicle passing can be minimized, It is possible to prevent various foreign substances from flowing into the space between the front and rear plates 30, so that there is an advantage that a separate cleaning work is basically unnecessary.

In addition, according to the present embodiment, since the entirety of the flat plate 30 contributes to the rigidity of the structure, the material saving effect due to the increase in rigidity is increased, and the construction cost is lowered. And the correction is facilitated, so there is an advantage that it can actively cope with the situation in the field.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limited to the specific embodiments set forth herein; rather, .

10: bridge pier 20: girder 21: mold beam
21a: Through hole 22: Rear beam 30:
31: base 31a: bolt hole 32: seat part
32a: Through hole 33: Rib 34: Reinforcing bar
40: filler plate 41: receiving groove

Claims (3)

A plurality of piers;
A girder fixed to an upper surface of the bridge pier and having a nut along its longitudinal direction;
And is fixed to the girder by means of bolts fastened to the girders in the direction of the throttling axis and perpendicular to the throttling direction and fastened to the nuts of the girder, A base plate arranged in the direction of the base plate and connected to each other by a bolt and a nut;
And a filler plate having rib grooves in which the ribs are accommodated, the filler plates being sandwiched between the flat plate plates arranged in the direction perpendicular to the throttling axis to fill spaces between the flat plate plates.
The method according to claim 1,
Wherein a reinforcing rib of a grid shape is further reinforced on the inside of the base.
3. The method according to claim 1 or 2,
Wherein the girder is provided with bolts along the longitudinal direction, the seat portion of the seat plate is inserted into the bolts installed, and the nut is fastened to the through bolts so that the girder and the seat plate are integrally formed.

Images