KR20110092788A - The temporary bridge using prestress steel materials and prestress tendon and foundation method of temporary bridge - Google Patents

The temporary bridge using prestress steel materials and prestress tendon and foundation method of temporary bridge Download PDF

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Publication number
KR20110092788A
KR20110092788A KR1020100012414A KR20100012414A KR20110092788A KR 20110092788 A KR20110092788 A KR 20110092788A KR 1020100012414 A KR1020100012414 A KR 1020100012414A KR 20100012414 A KR20100012414 A KR 20100012414A KR 20110092788 A KR20110092788 A KR 20110092788A
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South Korea
Prior art keywords
plate
temporary bridge
tension
support
sides
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KR1020100012414A
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Korean (ko)
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이병섭
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이병섭
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Priority to KR1020100012414A priority Critical patent/KR20110092788A/en
Publication of KR20110092788A publication Critical patent/KR20110092788A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/30—Metal
    • E01D2101/32—Metal prestressed

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

PURPOSE: A temporary bridge using a prestressed steel material and a prestressed tendon and an installation method thereof are provided to improve construction performance and to reduce material costs. CONSTITUTION: A temporary bridge using a prestressed steel material and a prestressed tendon comprises a first beam, a second beam, first anchorage units, first tendons, a support device(300), and a supporter(400). The first beam connects the lower flange of an upper H beam and the upper flange of a lower H beam. The second beam applies prestress to the first beam. The first anchorage units are installed in both sides of the web of the lower H beam. The first tendons are coupled to the first anchorage units. The support device is installed in the bottom of the first and second beams. The supporter accepts the support device.

Description

The temporary bridge using prestress steel materials and prestress tendon and foundation method of temporary bridge}

The present invention relates to a temporary bridge using a prestressed steel and a tension member, and specifically, a first beam connecting a lower flange of an upper H beam and an upper flange of a lower H beam, and a prestress is introduced by applying a load to the first beam in advance. A second beam, a first fixing part installed on both sides of the web of the first beam lower H beam, a first tension member having one side coupled to the first fixing part on both sides, and a lower side of the first beam and the second beam The support device is installed in, the support device is configured as a support is installed, relates to a temporary bridge using a prestressed steel and tension material, characterized in that one side of the first beam and one side of the second beam is connected.

In constructing permanent bridges or other constructions, many temporary bridges are installed with the intention of temporarily bypassing the traffic of vehicles or people or directing the construction site. Currently, the installation method of bridge construction is to connect the beams to each other to establish a temporary vent, and to weld the temporary vent integrally thereon to install a temporary bridge, and then install a double-plate or steel plate on it to temporarily allow the vehicle or person to pass. There are existing conventional methods to install, a method of introducing prestress using high strength steel rods, a method of assembling a continuous assembly of trusses, and a method of assembling steel materials introduced with prestresses. The conventional method has a problem that temporary bridges are reduced to 5.0 ~ 8.0m because of the shortage of temporary bridges, and the temporary bridges are lost during flooding.The method using high strength steel rods has a ramen type negative effect and prestress. It is hypothesized over long periods of time, but this method is able to cancel the stress, but it is not possible to effectively cope with the deflection and vibration of the temporary bridge because the rigidity of the upper beam cannot be increased due to the introduction of prestress by non-attached steel rods. Even if the beam is coupled to increase the rigidity and effectively cope with the deflection and vibration of the temporary bridge, there is a problem that the stress offset against sufficient external load is not achieved by simply combining on the beam.

That is, it is possible to use a long time between stresses, but because the upper beam is less rigid and relatively sagging occurs, there are many limitations in actual use, and there is a problem in that sufficient stress offset against the working load is not achieved. In addition, the method of constructing the truss as a continuous assembly can be long and long, but since the material must be imported and installed from abroad, there is a problem in smooth supply and demand of the material. The problem has been raised due to poor use.

An object of the present invention created to solve the above problems, the first and first reports connecting the lower flange of the upper H-beam and the upper flange of the lower H-beam and installing a tension member introduced pre-stress to the web of the beam It is to provide a temporary bridge using prestressed steel and tension material to increase the stiffness and to provide sufficient stress offset against the working load by making and combining the second beam with prestressed steel.

An object of the present invention is a first beam connecting the lower flange of the upper H beam and the upper flange of the lower H beam, a second beam in which prestress is introduced by applying a load to the first beam in advance, and the first beam lower H beam The first fixing part is installed on both sides of the web of the first tension member, one side is coupled to each side of the first fixing part, the support device is installed on the lower side of the first beam and the second beam, the support device is installed It is configured as a support, it can be achieved by a temporary bridge using a prestressed steel and tension material, characterized in that one side of the first beam and one side of the second beam is connected.

The present invention having the above configuration has the following effects.

First, the present invention can satisfy the usability and structural stability through the increase of the stress and the cross-section of the beam by installing the temporary bridge using the prestressed steel and tension material.

Second, since the installation of the temporary bridge in the field directly installed and installed, the installation of the temporary bridge according to the present invention has a low cost of materials, the economical and constructability is good.

1 is a moment diagram of a two span structure.
Figure 2 is a view showing a temporary bridge using the prestressed steel and tension material of the present invention.
3 is a view showing a procedure for manufacturing the prestressed steel of the present invention.
4 is an exemplary view showing a connection between the first beam and the second beam of the present invention.
Fig. 5 is a view of installing the prestressed tension member of the present invention on a web of steel and a view of a fixing unit.
6 is a view of the support device of the present invention.

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

1 is a moment diagram of the two-span structure and Figure 2 is a view showing a temporary bridge using the prestressed steel and tension material of the present invention. 3 is a view showing a manufacturing procedure of the prestressed steel of the present invention, Figure 4 is an exemplary view showing the connection of the first beam and the second beam of the present invention.

The present invention relates to a temporary bridge using a prestressed steel and a tension member, the first beam 100 connecting the lower flange 113 of the upper H beam 110 and the upper flange 121 of the lower H beam 120. The first fixing part 510 is installed on both sides of the web 122 of the second beam 200 and the first H beam 120 and the lower H beam 120, which is preloaded by applying a load to the first beam 100. ), The first tension member 530, one side of which is coupled to both sides of the first fixing part 510, the support device 300 installed on the lower side of the first beam 100 and the second beam 200, the support device The support 300 is installed 300 is characterized in that one side of the first beam 100 and one side of the second beam 200 is connected.

Alternatively, in the present invention, the second tension member 520 installed on both sides of the web 212 of the upper H beam 210 of the second beam 200 and the second tension member having one side coupled to the second fixing part 520 on both sides thereof. It characterized in that it further comprises (540).

In addition, the present invention further includes a connection of one side of the first beam 100 and one side of the second beam 200 using a connecting plate 700 and a bolt nut 600 to the web and the upper and lower flanges, respectively. Characterized in that.

As shown in FIG. 1, the moment of the two-span structure has a positive moment near the end and a negative moment near the center point. Usually the magnitude of the maximum absolute value of the minor moment is larger than the maximum absolute value of the positive moment.

2 is a view showing a temporary bridge installed by using the prestressed steel and the tension material of the present invention, the lower flange 113 and the upper flange 121 of the lower H beam 120 having different stiffness. ) Using the bolt nut 600 to connect the first beam 100 and the first beam 100 to the first beam 100 using a load to the first beam 100 and the second beam 200 in which the prestress is introduced into the temporary bridge 10 It is installed on the support (400). Support device 300 is installed between the first beam 100, the second beam 200 and the support 400 is installed on the support (400). End beams 400 at both sides of the temporary bridge 10 are provided with a first beam 110 provided with a first tension member 530 in which prestress is introduced into the web 122 of the lower H beam 120. The support 400 of the center point installs the second beam 200, the prestress is introduced to the steel. The first beam 100 and the second beam 200, which are portions corresponding to the intervals of the temporary bridge 10, are connected to each other by using the connecting plate 700 and the bolt nut 600. to be. That is, as shown in FIG. 4, the connecting plate 700 is overlapped with the webs 112, 122, 212, 222 and upper and lower flanges 113, 121, 213, 221 of the first beam 100 and the second beam 200, and the fixing is attached to the bolt nut 600. It is done by

As shown in FIG. 1, the moment is acting near the end, and thus, the cross section of the composite steel cannot guarantee the safety of the working load. In the present invention, as shown in FIG. The 530 may be fixed to the first fixing part 510 to increase stability to the working load of the first beam 100. Alternatively, as shown in FIG. 1, since the absolute value of the parent moment is higher than the absolute value of the static moment in the center part, safety of the working load cannot be guaranteed only by the steel in which prestress is introduced, as shown in FIG. 5. As described above, the second tension member 540 introduced with the prestress may be fixed to the second fixing part 520 to increase stability to the working load of the second beam 200. The first and second tension members 530 and 540 may be wires, steel rods, or the like, but a prestress tendon is preferable. In addition, when the first tension member 530 is installed on the lower H beam 120, the lower H beam 120 may be removed by a section in which the first tension member 530 is installed.

As shown in FIG. 3, the second beam 200 introduces prestress through the following process. Figure 3 (a) is the upper flange 221 of the lower flange 213 of the upper H beam 210 of the general structural rolled steel (mild steel, SM400) and the lower H beam 220 of the high-strength rolled steel (high steel, SM490). ) And the second beam 200 is formed by temporarily bolting or welding. FIG. 3 (b) shows the second beam 200 fabricated in FIG. 3 (a) by mounting the second beam 200 on a work table and being 1/4 L from both sides of the upper H beam 210 to the center. The prestressed load P is applied to the second beam 200 by using a hydraulic jack on both sides at a distance apart. In this case, a compressive force is generated in the upper flange 211 of the upper H beam 210, and a tensile force is generated in the lower flange 223 of the lower H beam 220, respectively. 3 (c) shows the lower flange 213 of the upper H beam 210 and the upper flange 221 of the lower H beam 220 while loading the prestress load P to introduce the prestress into the second beam 200. The upper and lower parts are manufactured by pre-stressing the second beam 200 by fully bolted or fully welded using the bolt nut 600, which is temporarily bolted or welded. 3 (d) is to remove the prestressed load P loaded. The principle that the prestress is introduced into the second beam 200 is that the two beams are vertically connected, and thus the stiffness is much smaller than that of the composite beam that is completely integrally connected. The difference in stress occurs when the load P is removed after the composite beam is completely integrated. By this difference, the prestress is introduced into the second beam 200 to produce the prestressed beam. Of course, prestressing should not exceed the allowable stress of the steel. The prestressed beam thus manufactured is simply completed through the four steps above, so that the prestress can be easily introduced without increasing the production difficulty or maintenance trouble, and at the same time increasing the cross section to effectively cope with sag and vibration.

6 is a view of the support device 300 of the present invention.

In the present invention, the support device 300 has a fixed end and a movable end to serve to help the beam (100,200) is installed on the support (400) to support the load. Supporting device 300, which acts as a movable end is the first plate 310, the first plate 310 is formed on both sides, the flow rod 320 is installed under the first plate 310, the agent installed under the flow rod 320 The second plate 330, the elastic plate 340 is installed under the second plate 330, is installed under the elastic plate 340, the flow rod 320, the second plate 330 and the elastic plate 340 is inserted Being installed under the support frame 350, the support frame 350 is composed of a third plate 360, the second long hole 361 is formed on both sides, the first plate 310 and the first of the second plate 330 And inserting bolts into the two holes 311 and 361 to make it drop. That is, by installing the flow rod 320 in the support device 300 to absorb the expansion and contraction by the temperature of the temporary bridge.

Alternatively, the supporting device 300 serving as the fixed end serves to limit the expansion and contraction due to the temperature of the temporary bridge 10 by removing the flow bar 320 from the movable end supporting device 300.

Fig. 5 is a view of the prestressing tension member of the present invention installed in the web of steel and the fixing part.

The first fixing part 510 of the present invention includes a first horizontal member 511 and a first horizontal member 511 that are horizontally attached to both sides of the web 122 of the lower beam H of the first beam 100. Side and second horizontal sides of the first vertical member 512 and the second horizontal member 513 and the first vertical member 512 that are perpendicularly connected to one side of the first vertical member 512 are formed to protrude vertically from one side. The side of the member 513 is characterized in that it further comprises a first side member 514 formed with a first horizontal through-hole 515 connected to the surface forming a right angle. In addition, the first horizontal member 511 may further include being coupled to the web 122 of the lower H-beams 120 of the first beam 100 by the bolt nut 600.

The second fixing part 520 of the present invention includes a third horizontal member 521 and a third horizontal member 521 which are horizontally attached to both sides of the web 212 of the upper H-beam 210 of the second beam 100. Side and fourth horizontal sides of the second vertical member 522 and the fourth horizontal member 523 and the second vertical member 522 connected at right angles to one side of the second vertical member 522 are formed to protrude vertically from one side. The side of the member 523 is characterized in that it further comprises a second side member 524 formed with a second horizontal through-hole 525 connected to the surface forming a right angle. In addition, the third horizontal member 521 may further include being coupled to the web 212 of the upper H-beam 210 of the second beam 100 by the bolt nut 600.

That is, the present invention is to increase the stability of the beam by the external load by fixing the first and second tension members (530,540) to the first and second fixing parts (510,520).

The present invention may further comprise making the first and second tension members 530 and 540 fixed to the first and second fixing parts 510 and 520 by making a rivet-shaped head at the ends of the first and second tension members 530 and 540. The first and second tension members 530 and 540 are provided with a first wedge between the first tension member 530 and the first fixing part 510 or between the second tension member 540 and the second fixing part 520. It is characterized in that it further comprises to be fixed to 510,520.

Support 400 of the present invention is characterized in that it further comprises being made using H-shaped steel or reinforced concrete.

Looking at the method of installing the temporary bridge according to the present invention, 1) the step of installing the support for supporting the temporary vents on the ground at both sides and the center of the temporary bridge, 2) to be installed on the support of the first lower H-shaped steel Installing the first beam with prestressing by installing the fixing part and tension member on the web, 3) Manufacturing the second beam with prestressing by applying load to the second beam, which is installed on the support, 4) Supporting on the support 5) installing the first beam on both sides of the support, installing and connecting the second beam in the center, and 6) installing a perforated plate on the beams of the first beam and the second beam connected thereto. It features.

Another method is to install on the support in step 3) to apply the prestress by applying the load to the second beam, and to install the prestress by installing the fixing part and the tension member on the web of the upper H-beam of the second beam. Characterized in that it further comprises a step.

As described above, the preferred embodiment of the temporary bridge and the installation method using the prestressed steel and the tension material according to the present invention is described as at least one embodiment, whereby the technical idea and its structure and operation of the present invention are not limited. The scope of the technical idea of the present invention is not limited or limited by the drawings or the description with reference to the drawings. In addition, the concept and embodiment of the invention presented in the present invention may be used by those skilled in the art as a basis for modifying or designing to other structures for carrying out the same purpose of the present invention. The equivalent structure modified or changed by those skilled in the art to which the present invention pertains is to be bound by the technical scope of the present invention described in the claims, and the spirit or scope of the invention described in the claims. Various changes, substitutions and alterations are possible without departing from the scope of the invention.

10: temporary bridge
100: first report 110: upper H beam of the first report
111: upper flange of the first beam upper H beam 112: web of the first beam upper H beam
113: lower flange of the first beam upper H beam 120: lower H beam of the first beam
121: upper flange of the first beam lower H-beam 122: web of the first beam lower H-beam
123: lower flange of the first beam lower H beam 200: second beam
210: upper H beam of the second beam 211: upper flange of the second H upper H beam
212 web of the second H upper H beam 213 lower flange of the second H upper H beam
220: lower H beam of the second beam 221: upper flange of the lower H beam of the second beam
222: web of the second beam lower H-beam 223: lower flange of the second beam lower H-beam
300: support device 311: Chapter 1
310: first plate 320: flow bar
330: second plate 340: elastic plate
350: support frame 360: third plate
361: Chapter 2 400: Support
500: fixing unit 510: first fixing unit
511: first horizontal member 512: first vertical member
513: second horizontal member 514: first side member
515: first horizontal through hole 520: second fixing part
521: third horizontal member 522: second vertical member
523: fourth horizontal member 524: second side member
525: second horizontal through hole 530: first tension member
540: second tension member 600: bolt nut
610: bolt 620: nut
700: connecting plate 800: perforated plate

Claims (26)

In the temporary bridge temporarily installed for the traffic of vehicles and people,
A first beam connecting the lower flange of the upper H beam and the upper flange of the lower H beam;
A second beam in which prestress is introduced by applying a load to the first beam in advance;
First fixing parts provided at both sides of the web of the first beam lower H beam;
First tension members having one side coupled to each of the first fixing parts on both sides;
Supporting device is installed on the lower side of the first beam and the second beam;
The support device is installed;
One side of the first beam and one side of the second beam is a temporary bridge using a prestressed steel and the tension material, characterized in that connected. In claim 1,
The one side of the first beam and the one side of the second beam is connected to the web and the upper and lower flanges of the upper and lower H beams, the temporary bridge using the prestressed steel and the tension member, characterized in that the connection. In claim 2,
The support device,
A first plate having first long holes formed at both sides thereof;
A flow rod installed under the first plate;
A second plate installed under the flow rod;
An elastic plate installed under the second plate;
A support frame which is installed under the elastic plate and into which the flow bar, the second plate, and the elastic plate are inserted;
A third plate which is installed under the support frame and has second holes formed at both sides thereof; Comprised of, the temporary bridge using prestressed steel and tension material, characterized in that the first plate and the second plate of the first and second long holes of the second plate to be dropped. In claim 2,
The support device,
A first plate having first long holes formed at both sides thereof;
A second plate installed under the first plate;
An elastic plate installed under the second plate;
A support frame into which the second plate and the elastic plate are inserted below the elastic plate;
A third plate which is installed under the support frame and has second holes formed at both sides thereof; Comprised of, the temporary bridge using the prestressed steel and the tension member, characterized in that the first plate and the second plate of the second plate by inserting a bolt into the hole. 4. The method of claim 3,
The first fixing part,
A first horizontal member attached horizontally to both sides of the web of the lower H-beam of the first beam;
A first vertical member protruding vertically from one side of the first horizontal member;
A second horizontal member connected at right angles to one side of the first vertical member; And
A first side member having a first horizontal through hole connected to a side of which the side of the first vertical member and the side of the second horizontal member form a right angle; Temporary bridge using prestressed steel and tension material, characterized in that consisting of. In claim 5,
The first horizontal member is a temporary bridge using a prestressed steel and tension material, characterized in that coupled to the web by a bolt. In any one of claims 1 to 6,
A prestressed bridge using prestressed steel and tension material, characterized in that the rivet-shaped head is made at the end of the first tension material to allow the first tension material to be fixed to the first fixing part. In any one of claims 1 to 6,
The prestressed bridge using prestressed steel and tension material, characterized in that the wedge is installed between the first tension member and the first fixing part so that the first tension member is fixed to the first fixing part. In claim 7,
The support is a temporary bridge using prestressed steel and tension material, characterized in that made using H-shaped steel. 9. The method of claim 8,
The support is a temporary bridge using prestressed steel and tension material, characterized in that made using H-shaped steel. In claim 7,
The support is a temporary bridge using prestressed steel and tension material, characterized in that made using reinforced concrete. 9. The method of claim 8,
The support is a temporary bridge using prestressed steel and tension material, characterized in that made using reinforced concrete. In the temporary bridge temporarily installed for the traffic of vehicles and people,
A first beam connecting the lower flange of the upper H beam and the upper flange of the lower H beam;
A second beam in which prestress is introduced by applying a load to the upper part of the first beam in advance;
First fixing parts provided at both sides of the web of the first beam lower H beam;
First tension members having one side coupled to each of the first fixing parts on both sides;
Second fixing parts provided at both sides of the web of the second beam upper H beam;
A second tension member having one side coupled to each of the second fixing parts on both sides;
Supporting device is installed on the lower side of the first beam and the second beam;
The support device is installed;
One side of the first beam and one side of the second beam is a temporary bridge using a prestressed steel and the tension material, characterized in that connected. In claim 13,
The one side of the first beam and the one side of the second beam is connected to the web and the upper and lower flanges of the upper and lower H beams, the temporary bridge using the prestressed steel and the tension member, characterized in that the connection. The method of claim 14,
The support device,
A first plate having first long holes formed at both sides thereof;
A flow rod installed under the first plate;
A second plate installed under the flow rod;
An elastic plate installed under the second plate;
A support frame installed under the elastic plate and into which the flow bar, the second plate, and the elastic plate are inserted;
A third plate which is installed under the support frame and has second holes formed at both sides thereof; It is composed of, the temporary bridge using the prestressed steel and the tension member, characterized in that the first plate and the second plate of the first and second holes of the second plate to be dropped by inserting. The method of claim 14,
The support device,
A first plate having first long holes formed at both sides thereof;
A second plate installed under the first plate;
An elastic plate installed under the second plate;
A support frame into which the second plate and the elastic plate are inserted below the elastic plate;
A third plate which is installed under the support frame and has second holes formed at both sides thereof; Comprised of, the temporary bridge using the prestressed steel and the tension member, characterized in that the first plate and the second plate of the second plate by inserting a bolt into the hole. The method of claim 15,
The first fixing part,
A first horizontal member attached horizontally to both sides of the web of the lower H-beam of the first beam;
A first vertical member protruding vertically from one side of the first horizontal member;
A second horizontal member connected at right angles to one side of the first vertical member; And
A first side member having a first horizontal through hole connected to a side of which the side of the first vertical member and the side of the second horizontal member form a right angle; Lt; / RTI >
The second fixing part,
A third horizontal member attached horizontally to both sides of the web of the upper H-beam of the second beam;
A second vertical member protruding vertically from one side of the third horizontal member;
A fourth horizontal member connected at right angles to one side of the second vertical member; And
A second side member having a second horizontal through-hole connected to a side of which the side of the second vertical member and the side of the fourth horizontal member form a right angle; Temporary bridge using prestressed steel and tension material, characterized in that consisting of. The method of claim 17,
The first horizontal member is a temporary bridge using a prestressed steel and tension material, characterized in that coupled to the web by a bolt. 19. The method of any of claims 13-18,
Hypothesis using prestressed steel and tension material, characterized in that the rivet-shaped head at the end of the first tension member and the second tension member to fix the first tension member and the second tension member to the first fixing part and the second fixing part. Bridges. In any one of claims 1 to 6,
Wedges are installed between the first tension member and the first fixing part, and the second tension member and the second fixing part to fix the first and second tension members to the first fixing part and the second fixing part. Temporary bridge using prestressed steel and tension material. The method of claim 19,
The support is a temporary bridge using prestressed steel and tension material, characterized in that made using H-shaped steel. 20. The method of claim 20,
The support is a temporary bridge using prestressed steel and tension material, characterized in that made using H-shaped steel. The method of claim 19,
The support is a temporary bridge using prestressed steel and tension material, characterized in that made using reinforced concrete. 20. The method of claim 20,
The support is a temporary bridge using prestressed steel and tension material, characterized in that made using reinforced concrete. In the method of installing a temporary bridge to temporarily install for the traffic of vehicles and people,
1) installing a support for supporting the temporary vent on the ground on both sides and the center of the temporary bridge;
2) manufacturing the first beam into which the prestress is introduced by installing the fixing part and the tension member on the web of the first H lower steel beam to be installed on the support;
3) manufacturing a second beam in which prestress is introduced by applying a load to the second beam to be installed on the support;
4) installing a support device on the support;
5) installing the first beam on both sides of the support, and installing and connecting the second beam in the center; And
6) installing a perforated plate on the beam of the first beam and the second beam connected; Temporary bridge installation method using prestressed steel and tension material, characterized in that consisting of. In the method of installing a temporary bridge to temporarily install for the traffic of vehicles and people,
1) installing a support for supporting the temporary vent on the ground on both sides and the center of the temporary bridge;
2) manufacturing the first beam into which the prestress is introduced by installing the fixing part and the tension member on the web of the first H lower steel beam to be installed on the support;
3) preparing a second beam in which the prestress is introduced by applying a load to the second beam to be installed on the support, and installing a fixing part and a tension member in the web of the second beam upper H-beam;
4) installing a support device on the support;
5) installing the first beam on both sides of the support, and installing and connecting the second beam in the center; And
6) installing a perforated plate on the beam of the first beam and the second beam connected; Temporary bridge installation method using prestressed steel and tension material, characterized in that consisting of.

KR1020100012414A 2010-02-10 2010-02-10 The temporary bridge using prestress steel materials and prestress tendon and foundation method of temporary bridge KR20110092788A (en)

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KR1020100012414A KR20110092788A (en) 2010-02-10 2010-02-10 The temporary bridge using prestress steel materials and prestress tendon and foundation method of temporary bridge

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Application Number Priority Date Filing Date Title
KR1020100012414A KR20110092788A (en) 2010-02-10 2010-02-10 The temporary bridge using prestress steel materials and prestress tendon and foundation method of temporary bridge

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KR20110092788A true KR20110092788A (en) 2011-08-18

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