KR20080099061A - Psc beam for connection steel width step of psc bridges - Google Patents

Psc beam for connection steel width step of psc bridges Download PDF

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Publication number
KR20080099061A
KR20080099061A KR1020070044681A KR20070044681A KR20080099061A KR 20080099061 A KR20080099061 A KR 20080099061A KR 1020070044681 A KR1020070044681 A KR 1020070044681A KR 20070044681 A KR20070044681 A KR 20070044681A KR 20080099061 A KR20080099061 A KR 20080099061A
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KR
South Korea
Prior art keywords
psc
plate
coupling
steel
connection
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KR1020070044681A
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Korean (ko)
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이성숙
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이성숙
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Priority to KR1020070044681A priority Critical patent/KR20080099061A/en
Publication of KR20080099061A publication Critical patent/KR20080099061A/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
    • E01D19/00—Structural or constructional details of bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • 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
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/28—Concrete reinforced prestressed

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

Abstract

A steel girder for connecting PSC beam of PSC bridge is provided to reduce the construction period and be easily installed. A steel girder(100) for connecting PSC beam(20) of PSC bridge comprises a metal base plate(110) which the cross beam is filled and fixed in the opposite side of the prestressed concrete beam to the constant interval, a metal support plate(120) combined and fixed to the base plate, a support plate combining fitting means letting connect and fix the support plate in the base plate, a connecting beam(140) in which both ends is combined and fixed to the support plate and connecting the prestressed concrete beam of the either side, a connecting beam combining fitting means letting connect and fix the connecting beam both ends in the support plate.

Description

PSC beam for connection steel width step of PSC bridges}

1 is a perspective configuration diagram showing the separation of the Kangarobo structure for connecting the PSC beam of the PSC bridge according to the present invention.

Figure 2 is a perspective view showing a combination of the Kangarobo structure for PSC beam connection of the PSC bridge according to the present invention.

Figure 3 is a cross-sectional view showing a steel beam structure for connecting the PSC beam of the PSC bridge in accordance with the present invention.

Figure 4 is a perspective view showing the structure of the base plate in the structure of the Kangarobo for connecting the PSC beam of the PSC bridge according to the present invention.

5 is a side configuration diagram of FIG. 4.

Figure 6 is a perspective view showing a support plate in the structure of a steel beam for connecting the PSC beam of the PSC bridge in accordance with the present invention.

7 is a front configuration diagram of FIG. 6.

8 is a rear configuration diagram of FIG. 6.

Figure 9 is a perspective view showing a support plate for installing a steel robo for connecting the PSC beam of the PSC bridge according to the present invention and a fixed plate for connecting the steel robo.

10 is a front configuration diagram of FIG. 9.

[Description of Symbols for Main Parts of Drawing]

10. Pier 20. PSC beam

100. Gangarobo 110. Base plate

112. Plate steel plate 114. Studs

120. Support plate 122. Plate beam

124. Coupling steel 130. Coupling bolt

132. Coupling nut 140. Connecting beam

152. Connecting steel sheet 154. Coupling bolt

152. Coupling nut 162. Connecting steel sheet

164. Binding bolts 166. Binding nuts

A. Flange connection B. Flange

The present invention relates to a cross beam for connecting a PSC beam of a PSC bridge, and more particularly, to connect a plurality of PSC beams (beams made of reinforced concrete) that are installed on a pier during construction of a PSC (Prestress concrete) bridge. The present invention relates to a steel beam robo for connecting PSC beams of PSC bridges to improve the quality of the structure as well as to shorten the working air by connecting the cross beams that prevent conduction with H-Beam.

In general, bridges are structures in which roads, railroads, waterways, etc. are constructed to cross natural obstacles or other passages such as rivers, valleys, and straits. These bridges are usually divided into a superstructure and a lower structure, the upper structure is composed of a bottom frame and a mold for supporting the passing load, and the lower structure is composed of a pier or shift supporting the upper structure.

Pre-stressed concrete (PSC) bridge method is the most common in the above-described bridge method, such a PSC bridge can be classified into various types according to the cross-sectional shape and structural type construction method. The general types of PSC bridges can be classified into composite bridges, slab bridges, box girder bridges, cable-stayed bridges, arch bridges, and ramen bridges. In Korea, composite bridges, slab bridges, box girder bridges and cable-stayed bridges are used.

In addition, the construction method is as varied as the type of PSC bridge as described above. Especially in the case of PSC Box Girder Bridge, the design method depends on the construction method. The commonly used PSC bridge construction method can be categorized into the site casting method and the precast segmental method according to the concrete pouring time. First, the field casting method includes the full staging method, the free cantilever method, the movable scaffolding system, and the incremetal launding method, and the precast segmental method includes the cantilever method. Free Cantilever Method) and Span-by-Span method.

On the other hand, the temporary construction method of PSC (Prestress Concrete) bridge using PC Beam is produced in the same way as the construction method of general PSC bridge in the prefabricated workshop, and after the tension is inserted by the steel wire, the predetermined curing time It is a superstructure construction method for placing slab on a continuous PSC beam in the state of installing the beam manufactured on the bridge through the construction.

The following is an explanation of the hypothesis of a typical PSC bridge. In the conventional PSC bridge construction method for constructing a precast PSC beam to behave as a continuous beam over multiple spans, a bridge bearing is installed on a bridge substructure such as a plurality of bridges. The beams are installed in a simple beam method by placing a plurality of beams at regular intervals on the bridge supports.

As described above, a cross beam, which is a beam-shaped member installed in the transverse direction, is installed between the PSC beam and the PSC beam at right angles to the longitudinal direction of the PSC beam mounted on the piers. At this time, the cross beam is installed in the field in the middle of the point connection portion and the span of the PSC beam in the concrete placing method so that the resistance to the horizontal load and torsion such as earthquake load or wind load of the PSC beam installed in the substructure of the bridge. Furthermore, the cross beam is integrated with the PSC beam to perform a load distribution function on the load acting on the PSC bridge to be structurally behaved in a grid structure.

However, it is pointed out that the crosswalk as described above is made by the concrete placing work in the field, the structural unreasonability and the difficulty of construction and quality control due to the height work is very poor. In other words, when installing cross beams, many work processes such as reinforcing and assembly of cross beams, welding of reinforcing bars for cross beams, installation and dismantling of cross beams, installation and dismantling of cross beams, concrete placing and curing, and prevention of cross beam fall prevention facilities. Due to this has the disadvantage that the quality of the cross beam and the air is very long.

In addition, as described above, the PSC bridge construction method according to the prior art, in which the installation of the cross beams is performed by concrete pouring work in the field, as well as the risk of safety accidents due to the high-altitude work, and the exposed surface of the cross beams is formed by the formwork. Therefore, there is a problem that the surface is not smooth.

The present invention was devised to solve all the problems of the prior art as described above, the cross beam consisting of a steel beam consisting of a base plate, a support plate and a connecting beam, the longitudinal direction of the PSC beam mounted on the piers By connecting the PSC beam and the PSC beam at right angles to each other, it does not require many steps to install the concrete crossbeams, making it easier to install the crossbeams, and shortening the air according to the installation work of the crossbeams. The purpose is to provide a steel beam for connecting PSC beams of a PSC bridge.

Another object of the technology according to the present invention is to configure a cross beam between the base plate, the supporting plate and the connecting beam, and the cross beam between the PSC beam and the PSC beam perpendicular to the longitudinal direction of the PSC beam mounted on the piers. By connecting, it is possible to further improve the safety of the aerial work.

Another object of the technology according to the present invention comprises a crossbeam consisting of a steel plate consisting of a base plate, a support plate and a connecting beam between the PSC beam and the PSC beam at right angles to the longitudinal direction of the PSC beam mounted on the piers. By connecting the system, it is not only necessary to install a device for preventing the fall of the PSC beam, but also to reduce the construction cost.

In addition, the technique according to the present invention consists of a crossbeam (beam beam) consisting of a base plate, a support plate and a connecting beam to connect between the PSC beam and the PSC beam at right angles to the longitudinal direction of the PSC beam mounted on the piers. Since there is no leakage of cement paste on the exposed part of Gangaro Robo, it is possible to smooth the surface of Gangaro Robo to enhance the beauty of Gangaro Robo.

The present invention configured to achieve the above object is as follows. In other words, the steel beam for connecting the PSC beams of the PSC bridges according to the present invention is perpendicular to the longitudinal direction of the plurality of the PSC beams mounted on the piers in the PSC bridges in which the precast PSC beams are constructed to behave as continuous beams over multiple spans. Claims [1] A cross beam for connecting a PSC beam of a PSC bridge connecting a PSC beam and a PSC beam, the cross beam comprising: a metal base plate embedded at fixed intervals on opposite surfaces of the PSC beam; A metal support plate coupled to and fixed to each of the base plates; Support plate coupling fixing means for coupling and fixing the support plates to each of the base plates; Connecting beams connected at both ends to each of the support plates to connect PSC beams at both sides; And connection beam coupling fixing means for coupling and fixing both ends of the connection beam to each of the support plates.

Base plate in the configuration of the present invention as described above is a plate steel plate made of a metal of a predetermined size having a plurality of through holes; And a stud installed on one side of the plate steel plate to be embedded during concrete curing of the PSC beam so that the plate steel sheet is embedded on the PSC beam.

And, the above-mentioned support plate is a plate beam made of the same shape as the connecting beam; And a plurality of through holes that are coupled to and fixed to one side of the plate beam facing the plate steel plate of the base plate, corresponding to the through holes formed in the plate steel plate of the base plate, and are coupled to the plate steel plate of the base plate in plan. Can be.

In addition, the above-mentioned support plate coupling fixing means is coupled through the other side through the stud side of the through-hole formed in the plate steel plate of the base plate coupling bolt is fixed to the head during the curing of the concrete PSC beam; And a coupling nut coupled to a coupling bolt coupled to a through hole formed in a coupling steel plate of the support plate to couple and fix the support plate to the base plate.

On the other hand, the above-mentioned connection beam coupling fixing means includes a plurality of coupling through-holes formed on the end of each flange connecting portion forming a connection portion between the connection beam and the plate beam; A connecting steel plate formed on both sides of the flange connecting portion through which a coupling hole corresponding to the coupling through hole of the flange connecting portion is formed; A coupling bolt formed at the flange connection portion and the connection steel plates at both sides and inserted into the matching coupling through hole and the coupling hole; And a coupling nut which is formed on the flange connection part and the connection steel plates at both sides, and is coupled to the coupling bolt inserted into the matching coupling through hole and coupling hole to connect and fix the support plate and the connection beam.

In addition to the above-described configuration, a plurality of through holes formed in each flange forming a connection portion between the connecting beam and the plate beam; A connecting steel plate formed through the coupling hole corresponding to the through hole of the flange and installed on upper and lower surfaces of each flange; Coupling bolts formed on the flange and the upper and lower connection steel sheets to be inserted into the matching through holes and coupling holes; And a flange coupling means consisting of a coupling nut which is formed on the flange and the upper and lower connection steel sheet is fastened to the coupling bolt inserted into the matched through hole and coupling hole coupled to connect the fixing plate and the connection beam.

Hereinafter, a steel beam for connecting the PSC beam of the PSC bridge according to the preferred embodiment of the present invention will be described in detail.

1 is a perspective configuration diagram showing the separation of the Kangborobo structure for PSC beam connection of the PSC bridge according to the present invention, Figure 2 is a perspective configuration diagram showing a combination of the Kangborobo structure for PSC beam connection of the PSC bridge according to the present invention, Figure 3 is a cross-sectional view showing the structure of the PSC beam connecting the steel garobobo PSC bridge according to the invention, Figure 4 is a perspective configuration showing the structure of the base plate in the structure of the PSC beam connecting the steel garobobo according to the present invention FIG. 5 is a side configuration view of FIG. 4, FIG. 6 is a perspective configuration view showing a support plate in a structure of a steel beam for connecting PSC beams of a PSC bridge, and FIG. 7 is a front configuration view of FIG. 6. 8 is a rear configuration diagram of FIG. 6, FIG. 9 is a perspective view showing a support plate for installing a steel beam for connecting a PSC beam of a PSC bridge according to the present invention, and a fixed plate for connecting the steel beam. 9, front The Saints.

Ganggabobo 100 for the PSC beam connection of the PSC bridge according to the present invention is a metal base plate 110, the base plate (fixed at a predetermined interval to the opposite surface of the PSC beam 20 mounted on the bridge 10 110, support plate coupling fixing means for coupling and fixing the support plate 120 to each of the metal support plate 120, the base plate 110 is fixed to each other; Both ends are fixedly coupled to each of the support plates 120, and the connection beam coupling for coupling the both ends of the connection beam 140 to each of the connection beam 140 and the support plate 120 to connect the PSC beam 20 on both sides It consists of a configuration including a fixing means.

The base plate 110 of the Kangarobo 100 according to the present invention configured as described above is installed in the formwork (not shown) during the manufacture of the PSC beam 20, the base according to the curing of the concrete filled in the formwork One surface of the plate 110 is fixed on the PSC beam 20 in a buried state. At this time, the position where the base plate 110 is buried is buried in the same position on the opposite surface of the plurality of PSC beams 20 mounted on the piers 10.

Meanwhile, as described above, the support plate 120 for coupling and supporting the connection beam 140, which will be described later, is fixedly coupled to the base plate 110 which is fixed at a predetermined interval on one side or both sides of the PSC beam 20. do. That is, the support plate 120 for coupling and supporting the connection beam 140 to be described later through the support plate coupling fixing means is fixed to the base plate 110 buried on each PSC beam 20.

As described above, the support plate 120 for jointly supporting the connection beam 140, which will be described later, is fixed to each base plate 110 before the PSC beam 20 is installed on the piers 10. The PSC beam 20 fixed to the support plate 120 on each base plate 110 may be hypothesized on the piers 10, and in the state where the PSC beam 20 is hypothesized on the piers 10, respectively. The support plate 120 may be fixed to the base plate 110. Of course, the working plate 120 is easier to fix and fix on the respective base plate 110 before the PSC beam 20 to the piers 10 in the working conditions.

As described above, after constructing the PSC beam 20 in which the support plate 120 is coupled and fixed on each of the base plates 110 to the piers 10, the base plate 110 of the opposing PSC beam 20. When the connection beam 140 is fixed to the support plate 120 fixedly coupled to the support plate 120 through the connection beam coupling fixing means, the neighboring opposing PSC beams 20 are the base plate 110, the support plate 120, and the support beam 120. The connection is prevented by being connected by the rigid robo 100 formed of the plate coupling fixing means, the connecting beam 140 and the connecting beam coupling fixing means.

Therefore, reinforcing and assembling work, connecting reinforcing bar welding, copper bar installation, formwork installation and dismantling, concrete placing and curing, prevention of conduction of PSC beam There is no need to install a facility for such, it is possible to facilitate the connection work of the PSC beam (20). At this time, in the case of installing the cross beam of the concrete structure according to the prior art, the facility for preventing the fall of the PSC beam is to install and remove anchor bars on the alternating and coping surfaces, to bond and dismantle the wire rope and turnbuckles, and to prevent the fall of the top of the PSC beam. Rebar welding and dismantling, alternating side joint rebar welding and dismantling.

In addition, as described above, the opposed PSC beam 20 comprises a base plate 110, a support plate 120, a support plate coupling fixing means, a connecting beam 140 and a connecting beam coupling fixing means according to the present invention When connected via the robo 100, there is no leakage of cement paste on the surface of the gangaro robo 100 to smooth the surface, as well as to improve the aesthetics of the gangaro robo 100 PSC beam 20 Can improve the quality.

In addition, as described above, the opposed PSC beam 20 comprises a base plate 110, a support plate 120, a support plate coupling fixing means, a connecting beam 140 and a connecting beam coupling fixing means according to the present invention When connected via the Robo 100 can not only improve the quality of the PSC beam 20, but also can shorten the work air by the simplification of the process, the safety and workability of the work according to the high altitude work is very good There is this.

Referring to the configuration of the Kangarobo 100 for PSC beam connection of the PSC bridge according to the present invention in more detail. First, the base plate 110 forms a connection base between the Kangarobo 100 and the PSC beam 20 according to the present invention. The base plate 110 has a plurality of through holes as shown in FIGS. 1 to 5. The plate steel plate 112 and the plate steel plate 112 made of a metal having a hole (112a) is formed on one side of the plate steel plate 112 is embedded in the concrete curing of the PSC beam 20, the plate steel plate 112 is PSC beam 20 It is made of a stud 114 to be buried in the).

As described above, the base plate 110 composed of the plate steel plate 112 and the stud 114 is coupled to the support plate to be described later in the formwork at the position where the base plate 110 is to be installed in the manufacturing process of the PSC beam 20. It is fixed through the coupling bolt 130 and the coupling nut 132 of the fixing means. At this time, the coupling bolt 130 of the support plate coupling fixing means is penetrated through the through hole (112a) from the inner surface of the plate steel plate 112 is installed stud 114 is exposed to the outer surface of the formwork through the through hole (112a) The coupling nut 132 is fastened to the bolt 130. As the coupling nut 132 is fastened to the coupling bolt 130 exposed to the outer surface of the formwork, the base plate 110 made of the plate steel plate 112 and the stud 114 is fixed on the inner surface of the formwork. do.

Meanwhile, as described above, the concrete is filled in the mold by the form in a state where the base plate 110 is fixed on the inner surface of the formwork through the coupling bolt 130 and the coupling nut 132 of the support plate coupling fixing means. After curing for a predetermined time, the base plate 110 fixed on the inner surface of the formwork is fixed on the cured PSC beam 20. At this time, the coupling bolt 130 is also exposed to the outside through the through hole 112a of the plate steel plate 112 in a state where the head is buried in the cured PSC beam 20.

As described above, after curing the concrete for a predetermined time, the coupling nut 132 is separated from the coupling bolt 130 to dismantle the formwork, and the separated coupling nut 132 is fastened onto the coupling bolt 130. . The reason why the coupling nut 132 is fastened on the coupling bolt 130 is to prevent the coupling nut 132 from being forgotten.

As described above, the base plate 110 buried on the cured PSC beam 20 has a body and a head of the stud 114 installed on one side of the plate steel plate 112 as shown in FIGS. 3 to 5. The base plate 110 is fixed on the PSC beam 20 because it is embedded on the additionally cured PSC beam 20.

The support plate 120 is for connecting the connecting beam 140 to be described later on the base plate 110, the support plate 120 will be described later as shown in Figures 1 to 3 and 6 to 8 The plate beam 122 made of the same shape as the connecting beam 140 and the plate plate 122 of the base plate 110 opposite to the plate steel plate 112 is fixedly coupled to the base plate 110 A plurality of through-holes 124a corresponding to the through-holes 112a formed in the plate steel plate 112 are formed, and is formed of a combined steel plate 124 coupled in plane with the plate steel plate 112 of the base plate 110.

In the configuration of the support plate 120 configured as described above, the plate beam 122 is made of the same beam shape as the connection beam 140 to be described later. However, the plate beam 122 constituting the support plate 120 is made in the form of the same beam as the connecting beam 140, but is a very short beam in length. In addition, the size of the coupling steel plate 124 is made of a size corresponding to the plate steel plate 112 of the base plate 110, while the through hole 124a formed on the coupling steel plate 124 is also a plate of the base plate 110 Correspondingly formed on the same position as the plurality of through-holes (112a) formed on the steel plate (112).

On the other hand, the support plate 120 configured as described above is the base plate 110 in a state that is matched to the plate steel plate 112 of the base plate 110 buried on the PSC beam 20 via the coupling steel plate 124 The coupling bolt 130 is fastened to the plate steel plate 112 of the) to be inserted into the through hole 124a formed in the coupling steel plate 124 of the support plate 120. As described above, the coupling bolt 130 fastened to the plate steel plate 112 of the base plate 110 is inserted into the through hole 124a formed in the coupling steel plate 124 of the support plate 120. When the coupling bolt 130 is fastened to each of the coupling bolts 130, the support plate 120 is fixedly coupled on the base plate 110, which is fixed on the PSC beam 20.

The support plate coupling fixing means is for fixing and fixing the support plate 120 on the base plate 110 buried on the PSC beam 20. The support plate coupling fixing means is a plate steel plate of the base plate 110. The coupling bolt 130 and the support plate 120 of the coupling hole 130 is penetrated to the other side through the stud 114 side of the through-hole (112a) formed in the 112, the head is buried in the concrete curing of the PSC beam 20 It is made of a coupling nut 132 is fastened to the coupling bolt 130 coupled to the through-hole 124a formed in the coupling steel plate 124 to couple the fixing plate 120 to the base plate 110.

Since the coupling bolt 130 and the coupling nut 132 constituting the support plate coupling fixing means as described above have already been described in the process of describing the base plate 110 and the support plate 120, a separate description will not be given. I will not.

The connecting beam 140 is coupled to both ends of the support plate 120 fixed on the base plate 110 of each of the plurality of PSC beams 20 opposite surfaces installed in the piers 10, both sides of the PSC For connecting the beam 20, the connecting beam 140 is formed in the form of the H-beam as shown in Figures 1 to 3, both ends of the support plate through the connecting beam coupling fixing means described later ( The coupling is fixed on the 120 to connect the PSC beams 20 on both sides.

On the other hand, the connection beam 140 and the plate beam 122 of the support plate 120 as described above is made of the same form of the H-beam, so that when the end is installed facing each other to match. In this state, when the connection beam 140 and the plate beam 122 of the support plate 120 are connected through the connection beam coupling fixing means, the connection beam 140 is coupled and fixed on both support plates 120 and The PSC beam 20 is connected.

The connecting beam coupling fixing means is for connecting the connecting beam 140 and the support plate 120. The connecting beam coupling fixing means is the connecting beam 140 and the plate beam 122 as shown in FIGS. Coupling holes 152a corresponding to the plurality of coupling through holes 150 formed on the end of each flange connection portion A constituting the connection portion), and coupling through holes 150 of the flange connection portion 142. The through-holes are formed in the connecting steel plate 152 installed on both sides of the flange connection portion (A), the flange connection portion (A) and the coupling through-hole 150 and the coupling hole (152a) formed on both sides of the connecting steel plate (152) Coupling bolt 154 is inserted into the coupling bolt 154 and the flange connection portion (A) and the coupling bolt 154 is inserted into the coupling coupling hole 150 and through hole 152a formed on both sides of the coupling steel plate (152) The coupling nut 156 is fastened to the support plate 120 and the connection beam 140 is fixed.

The connecting beam coupling fixing means configured as described above forms a connection portion between the connecting beam 140 and the plate beam 122 in a state where the connecting beam 140 is brought into contact with the plate beam 122 of the support plate 120. A connecting steel plate 152 is installed on each of front and rear surfaces of each end of each flange connection portion A. At this time, the connecting steel plate 152 which is installed on each of the front and rear surfaces of the end of each flange connecting portion (A) forming the connecting portion of the connecting beam 140 and the plate beam 122 is a coupling hole formed on the connecting steel plate 152 152a and a plurality of coupling through-holes 150 formed through the flange end A of each flange connection portion A are provided in a state of matching.

As described above, each of the coupling holes 152a formed on the connection steel plate 152 and the plurality of coupling through holes 150 formed on the ends of the flange connection portions A are matched with each other. After installing the connecting steel plates 152 on each of the front and rear surfaces of the end of the flange connection portion A, the coupling bolt 154 is inserted into the matching coupling hole 152a and the coupling through hole 150 to engage the coupling bolt in the opposite direction. When the coupling nut 156 is fastened to 154, the connection beam 140 is fixedly coupled to the support plate 120.

On the other hand, in the configuration according to the present invention in addition to the configuration as described above may be further configured flange coupling means for further reinforcing the coupling holding force of the support plate 120 and the connection beam 140. The flange coupling means is to further reinforce the coupling fixing force of the support plate 120 and the connection beam 140 by combining the flange (B) of the plate beam 122 and the connection beam 140 of the support plate 120. 1 and 3, the configuration of the plurality of through holes 160 and the flanges formed in the respective flanges B forming the connection portions of the connection beam 140 and the plate beam 122 is described. Coupling hole 162a corresponding to the through hole 160 of B) is formed therethrough, but is connected to the upper and lower flanges (B) on the upper and lower surfaces of the connecting steel plate 162, the flange (b) and the upper and lower connecting steel plates 162 And formed in the coupling bolt 164 and the flange (B) and the upper and lower connecting steel plates 162 formed and coupled to the matched through hole 160 and the coupling hole 162a to be coupled with the matched through hole 160. It is fastened to the coupling bolt 164 inserted into the ball 162a to connect and fix the support plate 120 and the connection beam 140 Combination nut 166 is made.

The flange coupling means configured as described above forms a connection portion between the connection beam 140 and the plate beam 122 in a state where the connection beam 140 is brought into contact with the plate beam 122 of the support plate 120. A connecting steel plate 162 is provided on each of the front and rear ends of the flange B. At this time, the connecting steel plate 162 installed on each of the upper and lower end surfaces of each flange B forming the connection portion between the connecting beam 140 and the plate beam 122 is a coupling hole formed on the connecting steel plate 162 ( 162a and a plurality of through-holes 160 formed therethrough on the end portions of the respective flanges B are installed in a state of matching.

And, as described above, each of the flanges in a state in which the coupling holes 162a formed on the connection steel plate 162 and the plurality of through holes 160 formed to penetrate on the end portions of the respective flanges B are matched. After installing the connecting steel plate 162 on each of the upper and lower end surfaces of B), the coupling bolt 164 is inserted into the matching coupling hole 162a and the through hole 160 to the coupling bolt 164 in the opposite direction. When the coupling nut 166 is fastened, the coupling force between the connection beam 140 and the support plate 120 is improved.

As described above, the opposed PSC beam 20 includes a base plate 110, a support plate 120, a support plate coupling fixing means, a connecting beam 140, and a connecting beam coupling fixing means. When connecting through the PSC beam connection steel gabo (100), the work process that occurs when installing the cross beam of the concrete structure according to the prior art rebar processing and assembly, connecting reinforcing bar welding, copper bar installation, formwork installation and dismantling, It is not necessary to install a facility for preventing the concrete pouring and curing, the conduction of the PSC beam, it is possible to facilitate the connection work of the PSC beam (20).

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

As described above, according to the present invention, a cross beam is formed of a steel beam consisting of a base plate, a support plate, and a connecting beam to connect the PSC beam and the PSC beam at right angles to the longitudinal direction of the PSC beam mounted on the piers. Since it does not require many processes for installing concrete crossbeams, the installation of crossbeams can be made easier, and the effect of shortening the air according to the installation work of crossbeams is expressed.

Another effect of the technique according to the present invention comprises a cross beam consisting of a steel beam consisting of a base plate, a support plate and a connecting beam between the PSC beam and the PSC beam perpendicular to the longitudinal direction of the PSC beam mounted on the piers. By connecting, the safety of aerial work can be further improved.

Another effect of the technique according to the present invention comprises a crossbeam (beam beam) consisting of a base plate, a support plate and a connecting beam between the PSC beam and the PSC beam perpendicular to the longitudinal direction of the PSC beam mounted on the piers By connecting the PSC beam, the installation of a device for preventing the fall of the PSC beam is not necessary, and construction cost can be reduced.

In addition, the technique according to the present invention consists of a crossbeam (beam beam) consisting of a base plate, a support plate and a connecting beam to connect between the PSC beam and the PSC beam at right angles to the longitudinal direction of the PSC beam mounted on the piers. Since there is no leakage of cement paste on the exposed part of the Kangarobo, the surface of the Gangarobobo can be smoothed, and the effect of enhancing the aesthetics of the Gangarobobo is invented.

Claims (6)

For connecting PSC beams of PSC bridges connecting PSC beams and PSC beams at right angles to the longitudinal direction of the plurality of PSC beams mounted on the piers in the PSC bridges, which are constructed to behave as continuous beams over multiple spans. In the cross beam, A base plate made of metal which is fixed at a predetermined interval to the opposite surface of the cross beam of the PSC beam; A metal support plate coupled to and fixed to each of the base plates; Support plate coupling fixing means for coupling and fixing the support plates to each of the base plates; Connecting beams connected at both ends to each of the support plates to connect the PSC beams at both sides; And Kangbobo for connecting the PSC beam of the PSC bridge, characterized in that it comprises a connecting beam coupling fixing means for coupling and fixing the both ends of the connecting beam to each of the support plates. According to claim 1, wherein the base plate is a plate steel plate made of a metal of a predetermined size having a plurality of through holes; And The steel beam for connecting the PSC beams of the PSC bridges, characterized in that the plate steel plate is embedded on one side of the plate plate when the concrete curing of the PSC beam is made of a stud for fixing the plate steel plate embedded on the PSC beam. The method of claim 2, wherein the support plate comprises a plate beam having the same shape as the connecting beam; And The coupling is fixed to one side of the plate beam facing the plate steel plate of the base plate, but a plurality of through holes corresponding to the through holes formed in the plate steel plate of the base plate is formed to be coupled to the surface plate steel plate of the base plate Gangarobo for connecting PSC beams of PSC bridges, characterized in that the steel sheet. According to claim 3, The support plate coupling means for coupling is coupled through the other side through the stud side of the through hole formed in the plate steel plate of the base plate coupled to the head is buried in the curing of the concrete PSC beam; And Kangbobo for connecting PSC beams of the PSC bridge, characterized in that the coupling nut is fastened to the coupling bolt coupled to the through-hole formed in the coupling steel plate of the support plate to couple the fixing plate to the base plate. The method of claim 4, wherein the connecting beam coupling fixing means comprises a plurality of coupling through-holes formed on the end of each flange connecting portion forming a connection portion between the connecting beam and the plate beam; A connecting steel plate formed on both sides of the flange connecting portion, the coupling hole corresponding to the coupling through hole corresponding to the flange connecting portion; Coupling bolts formed in the flange connecting portion and the connecting steel plates on both sides and inserted and coupled to the matching coupling through holes and coupling holes; And PSC beam connection of the PSC bridge, characterized in that the coupling connection is formed on the flange connection part and the connecting steel plate on both sides is fastened to the coupling bolt inserted into the matching coupling through hole and coupling hole to connect and fix the support plate and the connection beam Dragon river bank. 6. The apparatus of claim 5, further comprising: a plurality of through holes formed in each flange forming a connection portion between the connection beam and the plate beam; Connecting steel plates formed through the coupling holes corresponding to the through holes of the flanges and installed on upper and lower surfaces of the flanges; Coupling bolts formed in the flange and the upper and lower connection steel sheets to be inserted and coupled to matched through holes and coupling holes; And The flange of the PSC bridge is characterized in that the flange is formed of a coupling nut which is formed on the flange and the upper and lower connection steel plate is fastened to the coupling bolt inserted into the matched through hole and the coupling hole to connect and secure the support plate and the connection beam. Kangarobo for connecting PSC beams.
KR1020070044681A 2007-05-08 2007-05-08 Psc beam for connection steel width step of psc bridges KR20080099061A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101703798B1 (en) 2016-01-08 2017-02-09 (주)천마기술단 Prestressed Concrete Beam with curve implementation possible connection structure and Constructing Method thereof
KR20190109022A (en) 2018-03-16 2019-09-25 이성원 Steel material cross beam for PSC girder bridges and its construction method thereof
KR102083115B1 (en) 2019-04-18 2020-03-02 (주)아이오컨스텍 Circular connecting device and concrete hunch equipped PSC beam
KR102474998B1 (en) * 2022-05-19 2022-12-06 (주)신승이앤씨 Steel Cross Beam for PSC Beam Connections on PSC Bridges and Method of Construction
KR102530545B1 (en) 2022-12-21 2023-05-11 컨텍이앤씨 주식회사 Rotational cross beam of bridge using removable rotary hinge and horizontal beam connectinging apparatus, girder and bridge construction methods using the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101703798B1 (en) 2016-01-08 2017-02-09 (주)천마기술단 Prestressed Concrete Beam with curve implementation possible connection structure and Constructing Method thereof
KR20190109022A (en) 2018-03-16 2019-09-25 이성원 Steel material cross beam for PSC girder bridges and its construction method thereof
KR102083115B1 (en) 2019-04-18 2020-03-02 (주)아이오컨스텍 Circular connecting device and concrete hunch equipped PSC beam
KR102474998B1 (en) * 2022-05-19 2022-12-06 (주)신승이앤씨 Steel Cross Beam for PSC Beam Connections on PSC Bridges and Method of Construction
KR102530545B1 (en) 2022-12-21 2023-05-11 컨텍이앤씨 주식회사 Rotational cross beam of bridge using removable rotary hinge and horizontal beam connectinging apparatus, girder and bridge construction methods using the same

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