KR100572860B1 - A Long-distance-pier temporary bridge Using Cross Beam Having Through-holes - Google Patents

Abstract

The present invention is a temporary bridge consisting of a plurality of bridges, a plurality of mold beams provided on the upper surface of the pier and a plurality of perforated plates provided on the upper surface of the mold beams, the plurality of mold beams at a position between the pier and the piers A first cross beam installed across the plurality of mold beams on a lower surface of the first cross beam and provided with a plurality of through holes, and installed across the plurality of mold beams on a lower surface of the plurality of mold beams so as to be spaced apart from the first cross beam by a predetermined distance; A plurality of tension members connected between the second crossbeam, the first crossbeam and the second crossbeam, each of which has two through holes, and protruded through the through holes formed in the first crossbeam and the second crossbeam, and the first crossbeam and the second crossbeam. A plurality of anchorages installed at one side of the cross beam to fix the both ends of the tension member; And it is provided on the lower end of the third cross beam and said third cross beam are installed across the beam of the plurality of molds to the lower surface of the template in the central beam-side position of the second cross beam comprises saedeulreul which the tensile member seating.

Temporary bridge, bridge, tensile, prestress, bridge.

Description

A long-distance-pier temporary bridge using cross beam having through-holes}

1 is a front view showing the construction of the bridge between the long-term using the cross-beams formed through holes according to the present invention.

2A is a cross sectional view seen from the cross section A-A of FIG. 1 in the case of the first embodiment of the present invention.

FIG. 2B is a cross sectional view seen from the section B-B of FIG. 1 according to the first embodiment of the present invention. FIG.

2C is a plan view of FIG. 1 according to the first embodiment of the present invention.

3A is a cross sectional view seen from the cross section A-A of FIG. 1 according to the second embodiment of the present invention.

3B is a cross sectional view seen from the section B-B of FIG. 1 according to the second embodiment of the present invention.

3C is a plan view of FIG. 1 according to the second embodiment of the present invention.

Figure 4a is a partially enlarged front view showing the structure of the anchorage.

Figure 4b is a partially enlarged cross-sectional view for showing the structure of the anchorage.

5 is a partially enlarged front view showing a structure in which the reinforcing frame of the present invention is mounted on one side of the cross beam and the lower surface of the mold beam.

<< Explanation of symbols for main part of drawing >>

1: pier

2: template beam

3: perforated plate

4: horizontal beam

5: birds

6: anchorage

7: tension member

8: connection slab

9: reinforcement frame

10: reinforcement plate

The present invention relates to a temporary bridge, and more particularly, a long-term hypothesis using a horizontal beam formed with a through-hole formed by connecting a tension member between the cross-beams having a plurality of through-holes, and applying a prestress to reduce the static moment to widen the distance between the sections. It's about the bridge.

Temporary bridges are installed and used for various purposes, such as securing bypass roads during road construction, bypassing of vehicles during reconstruction work of this bridge, crossing bridges on high-traffic roads, and working bridges according to port facilities.

The conventional bridges have a short distance and a complicated shape using an I-Beam and a perforated plate, so there is a problem of excessive expenditure of construction cost, prolongation of construction period, and construction performance. In addition, it is necessary to install temporary bridges with wide spans because of the possibility of flooding rivers due to suspended substances in the narrow bridges in rainy season due to heavy rains.

Several methods are currently proposed to enable long span, among which vertical and horizontal stiffeners are attached to the H-beam, deflections are attached to the center of the H-beam bottom, anchors are installed at both ends, and high-strength steel bars are installed. Prestressing is widely used.

As a result of the structural calculation, it is known that the distance can be up to about 30 meters according to the above method, including the width of the space, and the actual distance between the spaces is about 28 meters. It becomes dangerous.

In addition, the method has a problem that the force is concentrated in the mold beam because the high-strength steel bar is installed at the lower end of the H-beam that is the mold beam.

Recently, as the purpose and purpose of the temporary bridges are diversified, such as by-pass bridges, bridges for construction, permanent bridges, etc., the construction length and width of the bridges are increased, and the construction period of conventional bridges between conventional bridges is extended. Overcoming the problems of the method and securing a wider distance, the demand for construction method of structurally stable temporary bridges is increasing.

The present invention has been made in order to solve the problems of the conventional long-term intersecting bridge, an object of the present invention is to install a cross beam formed with a plurality of through holes in the lower end of the mold beam and a plurality of tension by connecting the tension member through the through holes It is possible to install a member to provide a long bridge between the long bridge using the cross-beams through which the through-hole can be implemented to implement more long.

Another object of the present invention is a hypothesis between the long beams using a horizontal beam formed with a through hole that can prevent the concentration of force by dispersing the force by installing the tension member in the position between the mold beam and the mold beam as well as the position of the mold beam. In providing a bridge.

An object of the present invention, in the temporary bridge consisting of a plurality of bridges, a plurality of mold beams provided on the upper surface of the pier and a plurality of perforated plates provided on the upper surface of the mold beams, in the position between the pier and the piers A first cross beam installed across the plurality of mold beams on a lower surface of the plurality of mold beams and having a plurality of through holes, and horizontally extending the plurality of mold beams on the lower surfaces of the plurality of mold beams so as to be spaced apart from the first cross beam by a predetermined distance; A plurality of tension members installed between the first cross beams and the second cross beams having a plurality of through holes, the first cross beams and the second cross beams, and both ends protruding through the through holes formed in the first cross beams and the second cross beams; A plurality of anchorages installed at one side of the cross beam and the second cross beam to fix the both ends of the tension member; And a saddle installed at a lower end of the third cross beam and the third cross beam installed across the plurality of mold beams on a lower surface of the mold beam at the central side positions of the first cross beam and the second cross beam. It can be achieved by the long-term interstitial bridge using the cross-beams formed with a through-hole characterized in that.

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Preferably, at least one through hole is formed at a position between the mold beam and the mold beam.

The through holes may be formed at positions of the mold beams in the first and second horizontal beams.

In addition, it is more preferable that the reinforcing frame is further included on one side of the first crossbeam and the second crossbeam and the lower surface of the mold beam.

Further, it is more preferable that both ends of the mold beam are seated on the connecting slab.

Hereinafter, with reference to the drawings will be described in detail a preferred embodiment of the present invention.

1 is a front view showing the construction of the bridge between the long-term using the cross-beams formed through holes according to the present invention.

The cable-stayed bridge type long span bridge according to the present invention is a bridge (1), a mold beam (2), a perforated plate (3), the first to third cross beam (4-1 to 4-3), saddle (5), anchorage (6) ) And the connecting slab 9.

Pier 1 is a steel material provided with a plurality of H-Beam (H-Beam) is provided on the ground, the mold beam 2 is provided on the upper surface of the bridge (1). On the upper surface of the mold beam 2, a plurality of steel porous plates 3 are provided.

The first cross beam 4-1 is installed across the plurality of mold beams 2 on the lower surface of the plurality of mold beams 2 at a position between the pier 1 and the pier 1, and includes a plurality of through holes ( (Not shown) is formed.

The second cross beam 4-2 is installed across the plurality of mold beams 2 on the lower surface of the plurality of mold beams 2 so as to be spaced apart from the first cross beam 4-1 by a predetermined distance, and a plurality of through holes are formed. It is.

On the outer side of the first crossbeam 4-1 and the second crossbeam 4-2, a fixing member 6 for fixing the tension member 7 is provided.

The third cross beam 4-3 is installed across the plurality of mold beams 2 on the lower surface of the mold beam 2 at the intermediate position between the first cross beam 4-1 and the second cross beam 4-2. The saddle 5 is provided at the lower end of the third cross beam 4-3.

The first to third cross beams 4-1 to 4-3 are installed on the lower surfaces of the plurality of mold beams 2 to prevent deflection in the width direction of the temporary bridges and to insert the plurality of tension members 7. It has the function of reducing the static moment applied to the span of the temporary bridge.

The tension member 7 is connected between the first crossbeam 4-1 and the second crossbeam 4-2 across the saddle 5 installed in the third crossbeam 4-3, and is connected to the anchorage 6. Is fixed by. The tension member 7 is mainly used for high strength steel bar or high strength steel wire. The saddle 5 is attached to the lower end of the third cross beam 4-3 so that the tension member 7 moves downward in the direction of the third cross beam 4-3 from the first and second cross beams 4-1 and 4-2. It is installed so as to be inclined to, and accordingly upward load is applied to the saddle (5) and the third cross beam (4-3) it is possible to effectively remove the deflection phenomenon.

Both ends of the mold beam 2 are seated on the connecting slab 8 formed in the shape of "b", so that the temporary bridge is connected to the road on the land smoothly and more stable.

Figure 2a is a cross-sectional view seen from the cross-section AA of Figure 1 when the first embodiment of the present invention, Figure 2b is a cross-sectional view seen from the cross section BB of Figure 1 according to the first embodiment of the present invention, Figure 2c is a present invention 1 is a plan view of FIG. 1 according to the first embodiment of FIG.

As shown in Figs. 2a to 2c, in the first embodiment, the tension member 7 is positioned at the position between the mold beam 1 and the mold beam 1 so that the first cross beam 4-1 and the second cross beam ( 4-2) is connected between.

2A to 2C, through holes are formed in the first beams 4-1 and the second cross beams 4-2 at positions corresponding to the mold beams 2 and the mold beams 2, and tension After the member 7 penetrates the through holes formed in the first crossbeam 4-1 and the second crossbeam 4-2, the fixing member 6 installed on the outside of each crossbeam 4-1, 4-2. It is fixed.

The saddle 5 is also mounted on the lower end of the third crossbeam 4-3 at a position coincident with the through holes of the first crossbeam 4-1 and the second crossbeam 4-2.

In the first embodiment, a through-hole is formed at a position corresponding to the mold beam 2 and the mold beam 2, but the present invention is not limited thereto, and the present invention corresponds to the mold beam 2 and the mold beam 2, respectively. It includes the formation of two or more through-holes in position and thus a plurality of tension members to be installed, thereby applying more prestressing to realize a long distance of 30m or more and to distribute the force evenly.

3A is a cross sectional view seen from the cross-section AA of FIG. 1 according to the second embodiment of the present invention, and FIG. 3B is a cross-sectional view seen from the cross-section BB of FIG. 1 according to the second embodiment of the present invention, and FIG. According to the second embodiment of the invention, it is a plan view of FIG.

As shown in Figs. 3a to 3c, the second embodiment is characterized in that the tension member 7 has a first cross beam 4 at the position of the mold beam 2 and the position between the mold beam 2 and the mold beam 2; -1) and the second cross beam 4-2.

3A to 3C, through holes are formed at the lower side positions of the mold beam 2 and the mold beam 2 in the first cross beam 4-1 and the second cross beam 4-2, and the tension member. (7) passes through the through-holes formed in the first crossbeam (4-1) and the second crossbeam (4-2) and then fixed in the anchorage (6) provided on the outside of each crossbeam (4-1, 4-2) do.

The saddle 5 is also mounted on the lower end of the third crossbeam 4-3 at a position coincident with the through holes of the first crossbeam 4-1 and the second crossbeam 4-2.

In the second embodiment, the through-hole is formed at a position corresponding to the mold beam 2 and the mold beam 2, but the present invention is not limited thereto, and the present invention corresponds to the mold beam 2 and the mold beam 2, respectively. It also includes two or more through-holes are formed in the position so that a plurality of tension members are installed. According to the second embodiment, it is possible to install a larger number of tension members, so that more prestress can be applied to implement longer intervals and the power can be evenly distributed.

4A is a partially enlarged front view for showing the structure of the anchorage 6, and FIG. 4B is a partially enlarged cross sectional view for showing the structure of the anchorage.

4A and 4B, the fixing unit 6 is installed on the outer side of the cross beam 4-1 to fix the tension member 7 penetrating the through hole of the cross beam 4-1 by using a bolt or the like. It has a structure to make.

As shown in Figure 4a, since the tension member 7 is mounted to be inclined slightly inward, the fixing unit 6 is also installed to be slightly inclined with respect to the crossbeam 4-1.

5 is a partially enlarged front view illustrating a structure in which the reinforcing frame 9 of the present invention is mounted on one side of the cross beam 4-1 and the lower surface of the mold beam 2.

As shown in FIG. 5, the reinforcing frame 9 is attached to the inner side of the cross beam 4-1 and the lower surface of the mold beam 2 and a fastening member 10 such as a bolt to form a plurality of tension members 7. Due to the tensile force of the cross beams (4-1, 4-2) to distribute the force applied to the support to have a more stable structure.

When the reinforcing frame 9 and the cross beam 4-1 are mounted, the reinforcing plate 10 is bonded to the inside of the cross beam 4-1, and then the reinforcing plate 10 and the reinforcing frame 9 are fastened by bolts or the like. Tighten by member.

Although the present invention described above has been described with reference to the embodiments, the present invention is not limited thereto and modifications to the extent that a person skilled in the art can easily carry out the present invention are not limited thereto. It is obvious that it belongs to the technical idea.

According to the present invention as described above, it is possible to install a plurality of tension members by installing a horizontal beam formed with a plurality of through holes in the lower end of the mold beam and connecting the tension member through the through hole to apply a larger prestress to the mold beam It is possible to provide a long bridge between the long bridge using the cross beam formed through holes that can implement the interval.

In addition, the tension member is installed not only in the position of the mold beam but also in the position between the mold beam and the mold beam, thereby providing a long-term interstitial bridge using a horizontal beam formed with a through hole formed to distribute the force to prevent the force from being concentrated on the mold beam. Can be.

Claims (6)

In the temporary bridge consisting of a plurality of bridges, a plurality of mold beams provided on the upper surface of the pier and a plurality of double hole plate provided on the upper surface of the mold beams, A first cross beam installed across the plurality of mold beams on a lower surface of the plurality of mold beams at a position between the bridge piers and the plurality of through holes formed therein; A second cross beam installed on a lower surface of the plurality of mold beams so as to be spaced apart from the first cross beam by crossing the plurality of mold beams and having a plurality of through holes; A plurality of tension members connected between the first cross beam and the second cross beam and protruding from both ends of the cross beam through the through holes formed in the first cross beam and the second cross beam; A plurality of fixing units installed at one side of the first cross beam and the second cross beam to fix the both ends of the tension member; A third cross beam installed across the plurality of mold beams on a lower surface of the mold beam at the central side positions of the first cross beam and the second cross beam; And Long bridge between the long bridges and the through-holes formed, characterized in that it comprises a bird which is installed on the lower end of the third cross beam and the tension member is seated. delete The method of claim 1, The first and second horizontal beams long bridge between the cross beams formed with the through-holes, characterized in that at least one through-hole is formed at the position between the mold beams and the mold beams. The method according to claim 1 or 3, The first and second horizontal beams long bridge between the long bridges, characterized in that the through-holes are formed in the position of the mold beams. The method of claim 1, The long bridge between the long bridges and the cross beams formed with the through-holes, characterized in that it further comprises a reinforcing frame mounted on one side of the first and second cross beams and the lower surface of the mold beams. The method of claim 1, A cable-stayed bridge long bridge construction bridge, characterized in that both ends of the cast beam is mounted on the connecting slab.

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