KR20100070975A - Assembly cross beam structure for multigirder concrete bridge and method of construction thereof - Google Patents

Assembly cross beam structure for multigirder concrete bridge and method of construction thereof Download PDF

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Publication number
KR20100070975A
KR20100070975A KR1020090062235A KR20090062235A KR20100070975A KR 20100070975 A KR20100070975 A KR 20100070975A KR 1020090062235 A KR1020090062235 A KR 1020090062235A KR 20090062235 A KR20090062235 A KR 20090062235A KR 20100070975 A KR20100070975 A KR 20100070975A
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KR
South Korea
Prior art keywords
concrete
panel
prefabricated
prefabricated crossbeam
wall
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KR1020090062235A
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Korean (ko)
Inventor
안병록
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(주)한맥기술
주식회사 장헌산업
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Publication of KR20100070975A publication Critical patent/KR20100070975A/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
    • 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
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/268—Composite concrete-metal

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

Abstract

The present invention relates to a prefabricated crossbeam structure that is easily assembled and installed at the construction site of concrete multi-column bridges, and constructed by filling concrete. Floor panels having both ends of the beam connecting rebar exposed, and concrete seated on both sides of the floor panel, fastened and assembled with bolts, and protruding with shear bars or lattice bars for compounding with walls It is composed of wall panels made of materials, and prefabricated floor panels and a pair of wall panels can be assembled between beams on the piers and filled with concrete for easy and safe installation in a short time, and can be easily compensated for construction errors. Crossbeam structure for concrete multi-column bridges There is provided a method.

Description

ASSEMBLY CROSS BEAM STRUCTURE FOR MULTIGIRDER CONCRETE BRIDGE AND METHOD OF CONSTRUCTION THEREOF}

The present invention relates to a prefabricated crossbeam structure that is easily assembled and installed in a concrete multi-column bridge construction site and constructed by filling concrete, and specifically, a beam panel on a piers with a separately prepared floor panel and a pair of wall panels. The present invention relates to a prefabricated crossbeam structure for concrete multi-column bridges that can be installed easily and safely in a short time by assembling and pouring stuffed concrete, and to relatively easily correct construction errors, and a construction method thereof.

Concrete multi-column bridges install a number of beams (or girders) on the alternating or pier, install cross beams to distribute the load by connecting a plurality of beams arranged side by side in the cross direction of the bridge, and then install the slab slabs, It is completed by concrete pouring and ascon pavement.

Referring to FIG. 1, conventionally, after assembling the reinforcing bar 1 between the beams and installing the plywood formwork 2, the concrete 3 is poured into the plywood formwork 2, and a predetermined time elapses. When the concrete 3 was cured, the plywood formwork 2 was dismantled to install a cross beam. The horizontal cross of the concrete material installed as described above is advantageous in terms of appearance because there is no heterogeneity with the concrete multi-column bridge, but the work efficiency is reduced because the reinforcing bar must be assembled and the plywood formwork is installed in the narrow space between the beam and the beam installed in the high altitude. The construction period is extended and the construction cost is also greatly increased. In addition, since the installation of plywood formwork and concrete is poured, the material including the plywood formwork is dismantled, and the work of dismantling the material is carried out by manual operation. Since there are many cases where the related materials to be generated later are to be disposed of, there is a problem that it causes economic degradation and environmental pollution.

In addition, a method of installing a cross beam by connecting a cross beam made of steel to a beam and a beam on a pier and fastening the same by bolts or welding has been developed. However, the cross beam of the steel material is heavy, so handling is not easy and installation errors are likely to occur, and precise manufacturing and field construction of bolt holes and the like are required. In addition, the cross-section of the steel material is not good in appearance due to the large heterogeneous concrete bridge and the heterogeneity, there is a problem that causes the increase in construction costs because the steel price is expensive.

In order to solve this problem, a precast crossbeam is developed in which a floor panel, a wall panel, a shear reinforcing bar is combined, concrete is precast, prefabricated, transported to a bridge, and constructed between a beam on a bridge and a beam. .

For example, Korea Registered Utility Model Publication No. 0390731 (the name of the draft: precast concrete beam bridge using prefabricated precast crossbeams) is a prefabricated prefabricated factory standard and installed between the beam by the connecting member. A precast crossbeam is disclosed, and Korea Registered Utility Model Publication No. 0667921 (the name of the draft: Pylon construction method of cable bridge using precast concrete crossbeam) precast crossbeam connecting a pair of pylons and pylons to each other. Disclosed is a precast concrete crossbeam adapted for use as a concrete member. However, the precast concrete crossbeams precast and prefabricated in the factory as described above are also heavy and not easy to handle and require precise manufacturing and field construction of bolt holes, etc., as well as high installation errors. There is a problem that it is also difficult to correct the error.

In addition, Korean Patent Laid-Open Publication No. 2000-14668 (name of the invention: the method of cross beam construction of a concrete beam bridge) is integrally formed with a wall and a bottom so that a reinforcing bar is formed inside a tubular portion having a U-shaped cross section with an open top and both sides. There is disclosed a cross beam construction method of a concrete beam bridge in which a reinforcing bar assembly is formed, the reinforcing bar assembly is mounted between the main beams, supported, and concrete is poured into the reinforcing bar assembly to construct a cross beam. . However, the cross beam construction method of the concrete beam bridge is difficult to manufacture the cylindrical portion because the wall and the bottom of the cylindrical portion having a U-shaped cross section is integrally formed, and the volume of the manufactured cylindrical portion is very inconvenient and the transportation cost is very high. There is a problem that it takes too much and is cumbersome to handle. In addition, since the strength of the stuffed concrete can be maintained only when the reinforcing steel reinforcement is placed inside the tubular portion, it is also a problem that it takes time and cost to reinforce the reinforcing steel for the additional concrete reinforcement. .

Accordingly, an object of the present invention is to assemble the floor panel and the wall panel separately prepared between the beams on the piers and install the stuffed concrete, which can be easily and safely installed in a short time, and the construction errors can be relatively easily corrected. The present invention provides a prefabricated crossbeam structure for a concrete multi-column bridge and a construction method thereof.

In order to achieve the above object, in the present invention, the bottom panel consisting of the upper and lower two-layer panel of concrete material exposed to both ends of the beam connecting reinforcing bars embedded in the longitudinal direction in the upper panel; And prefabricated crossbeams for concrete multi-column bridges, including wall panels of concrete material, each of which is seated on both sides of the floor panel, fastened and assembled by bolts, and a shear reinforcing bar or lattice bar is formed to protrude into a wall. A structure is provided.

In addition, the present invention comprises the steps of lifting and mounting the bottom panel consisting of upper and lower two-layer panel of concrete material between the beams of the pier to expose both ends of the beam connecting reinforcement in the longitudinal direction in the upper panel; Fixing the bottom panel between the beam and the beam by welding connecting the reinforcing bar protruding from the beam and the beam connecting reinforcing bar of the floor panel; Reinforcing the inner cross beam reinforcement on an upper portion of the floor panel; Assembling the prefabricated robo by mounting a wall panel having a shear reinforcing bar or a lattice bar of iron material protruding from each side of the floor panel, wherein a lattice bar of protruding reinforcement or iron is formed; And it provides a construction method of the prefabricated crossbeam structure for a concrete multi-column bridge comprising the step of installing the prefabricated crossbeam structure by pouring the filling concrete into the interior of the prefabricated crossbeam.

The prefabricated crossbeam structure for concrete multi-column bridges according to the present invention can be easily and safely installed in a short time between beams and beams for concrete multi-column bridges, and has an effect of relatively easily correcting construction errors.

In addition, the prefabricated crossbeam structure of the concrete multi-column bridge of the present invention has a floor panel, a wall panel is pre-fabricated in the factory, easy quality control, beautiful appearance, and there is no waste material generated, it is environmentally friendly.

In addition, the prefabricated crossbeam structure of the concrete multi-column bridge of the present invention is easy to manufacture because the floor panel, the wall panel is manufactured separately, the convenient transport of the separately produced floor panel, wall panel as described above and the handling cost is reduced and handling This has the effect of simplicity.

The present invention is characterized by constructing a crossbeam structure by assembling a separately prepared floor panel and a pair of wall panels between beams on a piers and pouring stuffed concrete.

With reference to the drawings and embodiments will be described in detail with respect to the configuration of the prefabricated crossbeam structure for a concrete multi-column bridge of the present invention.

Figure 2 shows a cross-sectional structure of the precast crossbeam of the present invention, Figure 3 shows a perspective structure of the prefabricated crossbeam according to an embodiment of the present invention, Figure 4 is a prefabricated according to an embodiment of the present invention Figure 5 shows a separation structure of the cross beam, Figure 5 shows a perspective structure of the prefabricated crossbeam according to another embodiment of the present invention, Figure 6 shows a separate structure of the prefabricated crossbeam according to another embodiment of the present invention , Figure 7 illustrates the installation structure of the prefabricated crossbeam structure of the present invention.

2 to 7, the prefabricated crossbeam structure of the concrete multi-column bridge of the present invention is composed of a top and bottom two-layer panel of concrete material, so that both ends of the beam connecting reinforcing bars embedded in the longitudinal direction in the upper panel are exposed. This includes.

A bottom panel 11 made of a concrete material and having a predetermined length is formed to form a lower portion of the prefabricated crossbeam 10. The bottom panel 11 forming the lower part of the prefabricated crossbeam 10 has a two-layer structure in which the lower panel and the upper panel formed to have a slightly smaller area than the lower panel are integrated. The beam connecting reinforcing bars 12 are embedded in the upper panel of the prefabricated crossbeam 10 having the integrated two-layer structure in the longitudinal direction, and both ends of the embedded beam connecting reinforcing bars 12 are exposed to the outside of the upper panel, respectively. An end of the exposed beam connecting reinforcing bar 12 is welded and connected with the exposed bar in the beam on the pier.

As described above, the wall panel 21 is seated and fastened by bolts 23 to the stepped portions of both side portions of the bottom panel 11 having a two-layer structure in which the upper and lower panels are integrally assembled. It is formed.

In addition, the prefabricated crossbeam structure of the concrete multi-column bridge of the present invention is seated on both sides of the floor panel is fastened and assembled by bolts and the shear reinforcement or lattice bar for the composite action with the filling concrete (3) on the wall is formed to protrude Concrete wall panels are included.

Wall panels 21 made of a concrete material are formed to be seated on both sides of the bottom panel 11 to form walls on both sides of the prefabricated crossbeam 10.

When the prefabricated crossbeam 10 is assembled using the wall panel 21 having a plate shape and the stuffed concrete 3 is poured, one surface of the wall panel 21 faces the poured stuffed concrete 3. Bonded, the other surface is configured to be exposed to the outside of the prefabricated crossbeam 10.

Shear reinforcing bar 22 is formed to protrude from the wall panel 21 to the surface to be joined to the filling concrete 3 for the synthesis action with the filling concrete 3, the prefabricated cross beam by the shear reinforcing bar (22) The stuffed concrete (3) poured in 10) is integrated and behaves synthetically.

Alternatively, a lattice bar 24 is formed to protrude from the wall panel 21 to a surface joined to the filling concrete 3 so as to protrude from the filling concrete 3, and the lattice bar 24 is formed. By the filling concrete (3) poured in the prefabricated crossbeam 10 is integrated and behaves synthetically. As described above, since the lattice bar 24 protruding from the wall panel 21 is excellent in synthesizing with the filled concrete 3, the lattice bar 24 is formed using a prefabricated cross beam using the wall panel 21 having the lattice bar 24 formed therein. In the case of forming 10, the strength of the filling concrete (3) is maintained even without reinforcing the concrete reinforcing reinforcement to the wall panel 21 of the prefabricated crossbeam (10).

In addition, it is preferable to construct a wall panel 21 by roughly processing the surface facing the filled concrete 3 in terms of improving the bonding force between the wall panel 21 and the filled concrete 3. Do. On the other hand, it is possible to configure the wall panel 21 by smoothly processing the surface exposed to the outside of the prefabricated crossbeam 10, optionally by showing a decorative pattern on the exposed surface of the wall panel 21 prefabricated crossbeam 10 ) Can also improve the appearance.

The wall panel 21 as described above is seated on the step of both sides of the bottom panel 11 consisting of the upper and lower two-layer panel and fastened with bolts 23 to form a prefabricated crossbeam 10. In order to fasten the bolt between the bottom panel 11 and the wall panel 21, a plurality of bolt holes corresponding to each other should be formed at the bottom of the top panel and the wall panel 21 of the bottom panel 11.

The floor panel 11 is installed between the beam and the beam on the bridge pier, and the wall panel 21 is fastened with bolts 23 with the wall panels 21 seated on both sides of the floor panel 11, respectively, and the prefabricated cross beam ( 10) is assembled, and the stuffed concrete (3) is poured into the assembled prefabricated crossbeam (10) to complete the prefabricated crossbeam structure is installed, by firmly coupling between the beam and the beam on the prefabricated crossbeam structure piers of the beam The load is effectively distributed.

With reference to the embodiment will be described in detail with respect to the construction method of the prefabricated crossbeam structure for concrete multi-column bridge of the present invention.

First, the construction method of the prefabricated crossbeam structure of the concrete multi-column bridge of the present invention consists of upper and lower two-layer panel of concrete material between the beams of the pier to form both ends of the beam connecting reinforcing bars embedded in the upper panel in the longitudinal direction Lifting and mounting the floor panel is included.

Floor panel consisting of upper and lower two-layer panels made of concrete, exposing both ends of beam connecting rebars embedded in the upper panel in the longitudinal direction, and wall panels with shear bars or lattice bars protruding from the walls of concrete Are manufactured and transported to concrete multicast bridge construction.

The conveyed floor panel is lifted by a crane or the like and mounted between the beam and the beam installed side by side on the pier of the bridge construction site.

In addition, the construction method of the prefabricated cross-beam structure for concrete multi-column bridge of the present invention includes the step of fixing the bottom panel between the beam and the beam by welding connecting the reinforcing bar protruding from the beam and the beam connecting reinforcement of the floor panel do.

The bottom panel is fixedly installed between the beam and the beam by welding and connecting the reinforcing bars protruding from the beams of the bridges at the bridge construction site and the beam connecting bars of the floor panel mounted between the beams.

In addition, the construction method of the prefabricated crossbeam structure for concrete multi-column bridge of the present invention includes the step of reinforcing the inner cross beam reinforcing bar on the top of the floor panel.

It is placed between the beam of the pier and beams to reinforce the internal cross beams on top of the fixed floor panel.

In addition, the construction method of the prefabricated cross-beam structure for the concrete multi-column bridge of the present invention seats the wall panel in which shear reinforcement bars or steel lattice bars protrude from the walls of the concrete respectively on both sides of the floor panel and fastened with bolts Assembling the prefabricated crossbeam.

Bolts are formed to be fixed between the beams of the bridge and the beams, and to mount the wall panels on both sides of the floor panel with the inner horizontal beam reinforcement on the upper part, and to correspond to each other on the upper panel of the floor panel and the lower part of the wall panel. Assemble the prefabricated crossbeam by tightening the bolt alone.

In addition, the construction method of the prefabricated crossbeam structure for concrete multi-column bridge of the present invention includes the step of installing the prefabricated crossbeam structure by pouring the filling concrete into the interior of the prefabricated crossbeam.

The prefabricated crossbeam structure is completed by pouring filled concrete into the inside of the prefabricated crossbeam assembled between the beam of the pier and the beam.

As described above, the prefabricated crossbeam structure of the concrete multi-column bridge of the present invention is assembled easily and safely in a short time by assembling the prefabricated floor panel and a pair of wall panels between the beams on the piers and pouring stuffed concrete In addition, the construction error can be relatively easily corrected at the construction site.

1 is a cross-sectional view of a conventional cast-in-place horizontal beam

2 is a cross-sectional view of the precast crossbeam of the present invention.

Figure 3 is a perspective structure diagram of the prefabricated crossbeam according to an embodiment of the present invention

Figure 4 is a separation structure of the prefabricated crossbeam according to an embodiment of the present invention

5 is a perspective structure diagram of a prefabricated crossbeam according to another embodiment of the present invention;

Figure 6 is a separation structure of the prefabricated crossbeam according to another embodiment of the present invention

7 is a structural diagram of the prefabricated crossbeam structure of the present invention

* Explanation of symbols for the main parts of the drawings

1: rebar 2: plywood formwork

3: concrete 10: cross beam

11: floor panel 12: rebar for beam connection

21: wall panel 22: shear rebar

23: Bolt 24: Lattice Bar

Claims (3)

A bottom panel composed of a concrete upper and lower two-layer panel having both ends of the beam connecting reinforcing bars embedded in the upper panel in the longitudinal direction; And It includes a wall panel of concrete material seated on both sides of the floor panel is fastened and assembled with bolts, and a lattice bar made of shear reinforcing bars or iron materials for the composite action with the concrete filling the wall. Prefabricated crossbeam structure for concrete multicast bridges. The prefabricated crossbeam structure of claim 1, wherein bolt holes corresponding to each other are formed in an upper portion of the bottom panel and a lower portion of the wall panel. Lifting and mounting a bottom panel consisting of upper and lower two-layer panels made of concrete material between the beams of the pier to expose both ends of the beam connecting rebars embedded in the upper panel in the longitudinal direction; Fixing the bottom panel between the beam and the beam by welding connecting the reinforcing bar protruding from the beam and the beam connecting reinforcing bar of the floor panel; Reinforcing the inner cross beam reinforcement on an upper portion of the floor panel; Assembling the prefabricated crossbeam by seating and fastening a wall panel having shear reinforcement or a lattice bar of iron material protruding from a wall of concrete, respectively on both sides of the floor panel; And A method of constructing a prefabricated crossbeam structure for a concrete multi-column bridge comprising the step of installing a prefabricated crossbeam structure by pouring filled concrete into the inside of the prefabricated crossbeam.
KR1020090062235A 2008-12-18 2009-07-08 Assembly cross beam structure for multigirder concrete bridge and method of construction thereof KR20100070975A (en)

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KR20080129024 2008-12-18
KR1020080129024 2008-12-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101532372B1 (en) * 2015-05-08 2015-06-29 고재복 Girder with end diaphragm for emi-integral abutment bridge
CN110258312A (en) * 2019-07-16 2019-09-20 中铁二院工程集团有限责任公司 The structure linkage section and its design method, construction method of segment assembled pier stud
KR102151046B1 (en) * 2019-09-23 2020-09-03 강용길 High Strength Segment Girder with Enlarged Joint Section and Construction Method of High Strength Segment Girder
KR102477955B1 (en) * 2022-01-11 2022-12-15 주식회사 케이씨산업 Bridge pier and the construction method using maintained concrete mold

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101532372B1 (en) * 2015-05-08 2015-06-29 고재복 Girder with end diaphragm for emi-integral abutment bridge
CN110258312A (en) * 2019-07-16 2019-09-20 中铁二院工程集团有限责任公司 The structure linkage section and its design method, construction method of segment assembled pier stud
CN110258312B (en) * 2019-07-16 2024-03-22 中铁二院工程集团有限责任公司 Structure connecting section of section assembly pier column, design method and construction method thereof
KR102151046B1 (en) * 2019-09-23 2020-09-03 강용길 High Strength Segment Girder with Enlarged Joint Section and Construction Method of High Strength Segment Girder
KR102477955B1 (en) * 2022-01-11 2022-12-15 주식회사 케이씨산업 Bridge pier and the construction method using maintained concrete mold

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