KR20030029077A - The arch bridge with leaned support - Google Patents

The arch bridge with leaned support Download PDF

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Publication number
KR20030029077A
KR20030029077A KR1020030012144A KR20030012144A KR20030029077A KR 20030029077 A KR20030029077 A KR 20030029077A KR 1020030012144 A KR1020030012144 A KR 1020030012144A KR 20030012144 A KR20030012144 A KR 20030012144A KR 20030029077 A KR20030029077 A KR 20030029077A
Authority
KR
South Korea
Prior art keywords
girder
arcuate
arched
bridge
arch
Prior art date
Application number
KR1020030012144A
Other languages
Korean (ko)
Inventor
오성덕
Original Assignee
주식회사 영창기공
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020020036532 priority Critical
Priority to KR1020020036532A priority patent/KR20020062882A/en
Application filed by 주식회사 영창기공 filed Critical 주식회사 영창기공
Publication of KR20030029077A publication Critical patent/KR20030029077A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/06Foundation trenches ditches or narrow shafts
    • E02D17/08Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E02D17/083Shoring struts
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2220/00Temporary installations or constructions
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0046Production methods using prestressing techniques

Abstract

The present invention relates to an arch bridge in which an arcuate beam is inclined.
An arch bridge in which the arched beam of the present invention is inclined includes: a plurality of piers installed at predetermined intervals; A girder installed at an upper part of the piers, connecting the piers with the piers, and used as the basis of the passage; An arcuate beam installed at the top or bottom of the girder and inclined to the left and right of the girder; An anchor block connecting both sides of the arch beam to the girder and maintaining the inclined angle of the arch beam; A plurality of cables connected to predetermined positions of the girder and the arcuate beams to generate tension between the girder and the arcuate beams; It is configured to include; a tensioner is installed at a predetermined position of the cable to adjust the tension of the cable.
According to the present invention, the arcuate beams are formed to the left and right sides of the girder, thereby preventing the cross-sectional shape of the girder from being deformed even under a greater stress acting on the girder, thereby reducing the cross-sectional area of the girder.

Description

Arch bridge with tilted arch beams {THE ARCH BRIDGE WITH LEANED SUPPORT}

The present invention relates to an arch bridge in which an arched beam is inclined so that the arcuate beam is inclined to the left and right sides of the girder to further reduce the stress applied to the girder, thereby making the cross-sectional area of the girder more compact and enhancing the aesthetics.

Most of the existing medium and large bridges have girders installed between the piers and the piers, and the shape of the girders is a simple beam shape that takes a uniform straight line based on the maximum stress generated at the center of the girders.

This is because the shear force acting on the girder connecting the bridge piers is in the form of an inverted triangle that increases from both ends of the girder toward the center.

The simple beam-type bridges as described above have been constructed as arched bridges in recent years because they are not only harmful to the natural landscape but also increase the installation cost of the bridges.

Arched bridges are designed to move outward when the arch is loaded vertically, but to hold the ground supporting it so that it does not move, so the arch itself is under pressure so that it can support heavy loads.

However, the conventional arched bridge has a limit in reducing the force acting on the girder because the arched beam is formed on the vertical line with the girder as shown in FIG. 1.

This resulted in thickening of the girder cross section of the arched bridge, which not only increased the construction cost but also limited the deformation of the bridge.

In order to solve this problem, "cross-linked structure using arched steel beams" (Korean Utility Model No. 20-0267992, filed date Sep. 10, 2001), etc., which reinforced the action of arched beams by connecting wires between both sides of the arched beams, were devised. It became.

However, such a structure only slightly improves the function of the arcuate beams, and can only be applied to crosslinking due to poor aesthetics.

Therefore, the girder cross-section of the arched bridge is still thick, not only expensive, but also limited in deforming the shape of the bridge, so that it cannot be harmonized with the natural environment.

The present invention is to solve the above problems, more specifically, the arc-shaped beam is to be formed to the left and right of the girder to reduce the stress applied to the girder to further reduce the cross-sectional area of the girder. have.

In addition, the cross-sectional area of the girder can be further reduced so that the shape of the girder can be more freely deformed, so that a bridge can be constructed in harmony with the natural environment.

1 is a cross-sectional view of a conventional arched bridge with an arched beam perpendicular to the girder

Figure 2 is a schematic view of the arch bridge tilted arched beam of the present invention

A: top view

B: front view

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a schematic diagram of an anchor block which is a component of the present invention;

A: front view

B: side view

5 is a schematic view for explaining the inclination of the arched beam which is a component of the present invention;

<Description of the symbols for the main parts of the drawings>

10. Arched beam 11. Fixed lug

12. Coupling plate 13. Hollow part

14. Concrete 15. Slot

16.Air outlet 20.Girder

21. Bridge support 22. Fixed lug

30, 31. Pier 40. Anchor block

41, 42. Bolted hole 50. Cable

60. Tensioner

The present invention relates to an arch bridge in which an arcuate beam is inclined.

In the present invention, by using the arched beam to reduce the stress acting on the girder to take the form of the arched beam to the left and right of the girder to further reduce the stress acting on the girder.

In addition, the girders and the arcuate beams are connected using cables, and the cables are tensioned so that tension is generated between the girder and the arcuate beams.

Therefore, the arch bridge in which the arched beam of the present invention is inclined,

A plurality of piers installed at predetermined intervals;

It is installed at the upper part of the pier connecting the pier and the piers, and has a girder that is the basis of the passage.

In addition, an arcuate beam installed on the upper or lower portion of the girder and inclined left and right of the girder;

And an anchor block connecting both sides of the arcuate beam to the girder and maintaining the inclined angle of the arcuate beam.

In addition, a plurality of cables connected to the predetermined position of the girder and the arcuate beams to generate tension between the girder and the arcuate beams;

And a tensioner installed at a predetermined position of the cable to adjust the tension of the cable.

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

However, since the accompanying drawings are only examples for describing the technical idea of the present invention in more detail, the technical idea of the present invention is not limited to the accompanying drawings.

The present invention is an arcuate bridge that reduces the stress acting on the girder 20 using the arcuate beam 10.

Accordingly, the present invention also has a bridge 30, 31, which are arranged at predetermined intervals as in a conventional arch bridge, and a girder 20 which is provided on an upper portion of the bridge 30, 31 as a base of a passage.

Moreover, it has the arcuate beam 10 provided in the upper part or the lower part of the girder 20. As shown in FIG.

The pier (30, 31) and the girder 20 is implemented in the same form as installed in a conventional arched bridge.

However, the arcuate beam 10 has a limitation in reducing the stress acting on the girder 20 when implemented as the arcuate beam 10 provided in a conventional arched bridge.

That is, since the conventional arched beam 10 is on a vertical line with the girder 20 as shown in FIG. 1, since the stress acting on the girder 20 is transmitted to the arched beam 10 as it is, the arched beam 10 is girder. It should be able to cope with stress acting in (20).

For example, if the stress acting at a predetermined position of the girder 20 is 10 tons, the stress of the 10 tons is transferred to the predetermined position of the arched beam 10 as it is, so that the arched beam 10 can withstand the stress of 10 tons. Should be

This is a big factor that restricts the deformation of the shape of the arcuate beam 10 and the shape of the girder 20, and increases the cost of construction.

In the present invention, the arcuate beam 10 is inclined to the left and right of the girder 20 in order to solve the above problems.

That is, a process in which the stress acting on the girder 20 is transmitted to the arcuate beams 10 by allowing the stress acting on the girder 20 to be transmitted to the arcuate beams 10 in a non-vertical state. Disperses at and transfers them to weak stresses.

Therefore, in the case of having the arcuate beams 10 having the same cross-sectional area and shape, the cross-sectional area of the girder 20 can be made smaller than the conventional girder 20, which makes the shape of the girder 20 in more various forms. This can lead to deformable results.

The angle at which the arcuate beam 10 is inclined may be 1 ° to 89 ° with respect to the vertical line, but the stress generated when tilted at 45 ° is minimized.

However, since it is not easy to obtain the exact angle, it is preferable to incline it to about 40 ° to 50 ° in consideration of installation and operation.

The anchor block 40, which is a component of the present invention, is for connecting both sides of the arcuate beam 10 to the girder 20 as provided in a conventional arched bridge.

However, since the arcuate beam 10 of the present invention is inclined to the left and right sides of the girder 20, the arcuate beam 10 should be shaped to maintain the inclination angle of the arcuate beam 10.

As such, the method of maintaining the inclination angle of the arcuate beam 10 may be achieved by taking a shape in which the surface contacting the arcuate beam 10 is inclined at the inclination angle of the arcuate beam 10 as shown in FIG. 4. Can be.

Cable 50, which is a component of the present invention, is connected to a predetermined position of the girder 20 and the arched beam 10, such as a cable provided in an arched bridge having a conventional arched beam 10, the girder 20 and the arched beam It is for generating tension between the (10).

Therefore, the cable 50 of this invention can use the cable similar to what is provided in the conventional arch bridge, and can also use the method similar to the conventional method in the connection method.

Tensioner 60 is a component of the present invention is to adjust the tension acting on the cable 50 as in the prior art.

Therefore, the tensioner 60 may be implemented in the same form as the conventional tensioner 60.

When explaining the present invention to specific embodiments as follows.

The girder 20 is formed in the cross-sectional shape of the plate-shaped beam using a steel material, and after the bridge support 21 is formed on both sides of the bridges 30 and 31, the bridge support 21 is bolted or welded. Fix it.

The arcuate beam 10 is embodied in an arc shape using iron, and forms a fixing lug 11 for fixing the cable 50 at predetermined intervals.

In addition, the coupling plate 12 for bolting is formed at both ends of the arcuate beam 10 so that the arcuate beam 10 is inclined to the left and right of the girder 20 as shown in FIG. The coupling plate 12 is formed in an inclined state.

An anchor block 40 for installing the arched beams 10 is installed on the upper part of the girder 20 at a predetermined interval, and the part contacting the girder 20 is welded to integrate with the girder 20, and the arced beams ( 10) to be combined with the bolting method should be used.

The anchor block 40 is a part that is coupled to the arcuate beam 10, when the arcuate beam 10 is inclined to the left and right of the girder 20 when bolted to the engaging plate 12 of the arcuate beam 10 It is formed to be in an inclined state to become a state.

In addition, a fixing lug 22 for fixing the cable 50 at predetermined intervals is formed on the girder 20.

After installing the arched beams 10 on the girder 20, one side of the cable 50 provided with the tensioner 60 is connected to the fixing lugs 11 formed on the arched beams 10, and the other side of the girders 20. Is connected to the fixing lug 22 formed in FIG.

By tensioning the cable 50 using the tensioner 60, tension is generated between the arcuate beam 10 and the girder 20, and the arcuate beam 10 is appropriately tensioned to the stress acting on the girder 20. The tension of the cable 50 is appropriately set so as to correspond.

The operation of the present invention will be described with reference to the accompanying drawings.

When an object such as a vehicle is placed in the passageway of the bridge, a stress is generated in the girder 20, and the stress is in an inverted triangle shape that increases from the upper point of the bridge 30, 31 supporting the bridge to the center of the girder 20.

An arched beam 10 is installed on the upper part of the girder 20, and the arched beam 10 and the girder 20 are connected by a plurality of cables 50 so that the stress acting on the girder 20 is an arced beam ( 10) and the arcuate beam 10 is stressed.

However, the arcuate beam 10 of the present invention is inclined to the left and right of the girder 20 so that the stress acting on the girder 20 is distributed when the arcuate beam 10 is transmitted.

Therefore, the stress transmitted to the arcuate beams 10 is less than the stress acting on the girder 20.

That is, assuming that the stress acting on the girder 20 is 10 tons, the stress acting on the arcuate beam 10 is different depending on the inclination angle of the arcuate beam 10, but the stress acting on the girder 20 It corresponds to a small 4 to 7 tons.

This results in that the shape of the girder 20 can be maintained even with the large force acting on the girder 20 even when using the same arcuate beam 10.

Therefore, the stress acting at the center of the girder 20 can be more effectively reduced, so that the cross-sectional area of the girder 20 can be made smaller, and the shape of the girder 20 can be made more beautiful.

On the other hand, the arched beam 10 of the present invention can be a cross-section having a hollow portion 13, the hollow portion 13 can be filled with high-strength concrete (14).

With the above configuration, since the rigidity is increased, the cross-sectional area of the girder 20 can be further reduced.

In addition, when the hollow portion 13 is formed in the arched beam 10 as described above, the high-strength concrete 14 may be filled in only a part of the arched beam 10 instead of filling the concrete 14 in the entire hollow portion 13. It may be.

When configured in this way, since the rigidity at a predetermined position can be adjusted, the shape of the girder 20 can be modified into more various forms, thereby providing an arched bridge that is more harmonized with the natural environment.

As described above, when the hollow portion 13 is formed in the arched beam 10 and the high-strength concrete 14 is filled, the inlet 15 into which the high-strength concrete 14 is inserted is positioned at a lower portion of the arched beam 10. , It is preferable to form an air outlet port 16 through which the air inside the hollow part 13 escapes.

In addition, when the high-strength concrete 14 is to be filled in only a portion of the arcuate beam 10, the high-strength concrete 14 may be partially filled by forming a wall in a portion of the hollow part 13. Not)

Reference numerals 41 and 42 are bolt holes for bolting with the joining plate of the arcuate beam.

According to the present invention, the arched beams are formed to the left and right sides of the girder, thereby preventing the cross-sectional shape of the girder from being deformed even under a greater stress applied to the girder, thereby reducing the cross-sectional area of the girder, thereby reducing the construction cost. .

In addition, since the cross-sectional area of the girder can be further reduced, it is possible to construct a more diverse arched bridge in harmony with the natural environment.

Claims (4)

  1. In the arch bridge,
    A plurality of piers installed at predetermined intervals;
    A girder installed at an upper portion of the piers, connecting the piers with the piers, and serving as a base of the passage;
    An arcuate beam installed at the top or bottom of the girder and inclined to the left and right of the girder;
    An anchor block connecting both sides of the arcuate beam to the girder and maintaining the inclined angle of the arcuate beam;
    A plurality of cables connected to predetermined positions of the girder and the arched beams to generate tension between the girder and the arched beams;
    And an tensioner installed at a predetermined position of the cable to adjust tension of the cable.
  2. The method of claim 1,
    The arched bridge is characterized in that the inclined arch bridge, characterized in that the inclined beam 40 ° to 50 °.
  3. The method according to claim 1 or 2,
    The arched beam cross section is in the form having a hollow portion, characterized in that the hollow portion is filled with high-strength concrete, the arch arch is inclined arch bridge.
  4. The method according to claim 1 or 2,
    The arched beam cross section is in the form having a hollow portion, characterized in that the high strength concrete is filled in a portion of the hollow portion, the arch arch is inclined arched beam.
KR1020030012144A 2002-06-27 2003-02-26 The arch bridge with leaned support KR20030029077A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020020036532 2002-06-27
KR1020020036532A KR20020062882A (en) 2002-06-27 2002-06-27 Composite pedestrian bridge constructed from semiprecasted hybrid structure

Publications (1)

Publication Number Publication Date
KR20030029077A true KR20030029077A (en) 2003-04-11

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ID=27727056

Family Applications (3)

Application Number Title Priority Date Filing Date
KR1020020036532A KR20020062882A (en) 2002-06-27 2002-06-27 Composite pedestrian bridge constructed from semiprecasted hybrid structure
KR20-2003-0002557U KR200312173Y1 (en) 2002-06-27 2003-01-27 The arch bridge with leaned support
KR1020030012144A KR20030029077A (en) 2002-06-27 2003-02-26 The arch bridge with leaned support

Family Applications Before (2)

Application Number Title Priority Date Filing Date
KR1020020036532A KR20020062882A (en) 2002-06-27 2002-06-27 Composite pedestrian bridge constructed from semiprecasted hybrid structure
KR20-2003-0002557U KR200312173Y1 (en) 2002-06-27 2003-01-27 The arch bridge with leaned support

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100915590B1 (en) * 2008-11-05 2009-09-07 (주)평화엔지니어링 Initial prestress introduction method of general steel by erection cable
KR100968259B1 (en) * 2009-09-30 2010-07-06 노실근 Slab bridge and this construction technique
CN102677582A (en) * 2011-12-16 2012-09-19 中铁大桥勘测设计院集团有限公司 Half-through bowstring arch bridge adopting partial rigid connection mode among arched girders

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100682545B1 (en) * 2004-07-23 2007-02-15 노재원 Equipment for going across a road
KR100946277B1 (en) * 2007-07-20 2010-03-09 정원숙 A arch bridge and method for constructing it
KR101607523B1 (en) 2015-08-27 2016-03-30 (주)신흥이앤지 Arch bridge supported by reinforcing lateral wall
CN106835937A (en) * 2017-04-06 2017-06-13 四川交通职业技术学院 Big across CFST Arch Bridge damping system based on anti-seismic performance
KR101896450B1 (en) 2017-12-15 2018-09-07 우경기술주식회사 Structure of semi arch bridge and construction method thereof
CN110147599B (en) * 2019-05-11 2020-02-21 温州大学 Genetic algorithm-based cable-pole tension structure quality optimization method and system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100915590B1 (en) * 2008-11-05 2009-09-07 (주)평화엔지니어링 Initial prestress introduction method of general steel by erection cable
KR100968259B1 (en) * 2009-09-30 2010-07-06 노실근 Slab bridge and this construction technique
CN102677582A (en) * 2011-12-16 2012-09-19 中铁大桥勘测设计院集团有限公司 Half-through bowstring arch bridge adopting partial rigid connection mode among arched girders
CN102677582B (en) * 2011-12-16 2014-10-29 中铁大桥勘测设计院集团有限公司 Half-through bowstring arch bridge adopting partial rigid connection mode among arched girders

Also Published As

Publication number Publication date
KR20020062882A (en) 2002-07-31
KR200312173Y1 (en) 2003-05-09

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