KR20100112251A - Expansion equipment for concreate structure of bridge - Google Patents

Expansion equipment for concreate structure of bridge Download PDF

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Publication number
KR20100112251A
KR20100112251A KR1020090030665A KR20090030665A KR20100112251A KR 20100112251 A KR20100112251 A KR 20100112251A KR 1020090030665 A KR1020090030665 A KR 1020090030665A KR 20090030665 A KR20090030665 A KR 20090030665A KR 20100112251 A KR20100112251 A KR 20100112251A
Authority
KR
South Korea
Prior art keywords
expansion joint
expansion
joint cover
cover
bridge
Prior art date
Application number
KR1020090030665A
Other languages
Korean (ko)
Inventor
김만영
Original Assignee
(주) 우성폴리텍
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
Application filed by (주) 우성폴리텍 filed Critical (주) 우성폴리텍
Priority to KR1020090030665A priority Critical patent/KR20100112251A/en
Publication of KR20100112251A publication Critical patent/KR20100112251A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • 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
    • E01D19/06—Arrangement, construction or bridging of expansion joints
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • 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
    • 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
    • E01D2101/40—Plastics

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Bridges Or Land Bridges (AREA)
  • Road Paving Structures (AREA)

Abstract

PURPOSE: A flexible joint device of a bridge of a concrete structure is provided to make vehicles smoothly pass and prevent damage to a bridge deck by installing flexible joint devices on a bridge deck at regular intervals. CONSTITUTION: A flexible joint device of a bridge of a concrete structure comprises a rubber sheet part(150), an expansion joint cover(120) and a flexible joint(200). The rubber sheet part covers the upper side of the structure. The expansion joint cover covers on the upper side of the rubber sheet part and is made of metal or plastic material. The flexible joint is fixed to the structure by inserting a fixing bolt into a guide groove.

Description

Expansion equipment for concreate structure of bridge

The present invention relates to a bridge expansion joint device for concrete structures, and more particularly, to a bridge expansion joint device for improving durability and structurally stabilizing a structure from impact / vibration and allowing stable construction even at cracks / damage sites. will be.

In general, a bridge is constructed by connecting a plurality of top slabs spaced at regular intervals so as to be safe from natural environment such as contraction and expansion, strong wind or earthquake due to temperature change.

In addition, expansion joints are employed in the gaps spaced apart to prevent the entry of foreign matter in the gaps spaced at regular intervals and to prevent the fall of rainwater during rain.

These expansion joints of the bridge are installed between the slab and the slab of the bridge or between the slab and the alternating, to keep the structure of the bridge safe by absorbing the elongation or contraction deformation of the slab according to the external temperature change while interconnecting the slab. .

In particular, a large amount of gravel is laid on the bridge that the railway passes, such as a track that is installed on the ground so that it can respond to noise and load, and accordingly, the joint between the bridge and the slab installed between the bridge is gravel. This enters and interferes with the stretching of the slab.

To this end, expansion joints installed on railway bridges are designed so that crushed gravel does not enter the joints between the slabs as they are rubbed and collided with each other by shocks and vibrations when the vehicle passes.

Conventional expansion joint device for railroad bridges as described above is provided with a rubber blocking sheet that is elastically deformable to be covered in the joint between the slabs installed between the bridge, the slab is supported by a screw with one end of the blocking sheet. The plate is fixed, and the slab is fixed to the slab so that the upper part of the supporting plate is covered with the other end of the blocking sheet, thereby preventing gravel from entering the joints between the slabs and preventing falling of rainwater. Various studies are underway to absorb changes in the gaps of joints.

The problem to be solved of the present invention is that the expansion and contraction is made according to the temperature change and the load, so that the bridge structure constructed over a certain length is installed at the interval between the predetermined length of the bridge top plate, the expansion joint is installed between them, the bridge top plate It prevents damage and keeps the vehicle running smoothly.

However, although the conventional expansion joints for bridges are expanded and contracted according to the contraction and expansion of the upper structure, they are structurally weak in effectively absorbing and controlling the effects of vibrations such as earthquakes, and the earth's crustal change is intensified. As the occurrence of frequent occurrence of the seismic and seismic reinforcement of the structure is a big problem, the expansion joint is also aimed to provide a bridge expansion joint of concrete structures with seismic isolation, seismic protection and restoration.

Another object to be solved by the present invention is to provide a bridge expansion joint device for a concrete structure that can be convenient construction, shorten the construction period to lower the construction cost.

The problem solving means of the present invention in the expansion joint device for one bridge so as to interconnect the structures provided to be spaced apart from each other by a predetermined interval to expand and contract the expansion and contraction according to the temperature change, and to prevent the entry of foreign matter into the expansion and increase the aesthetics, A rubber sheet portion provided to cover the displaced upper surface of the structure; Covered in the upper portion of the rubber sheet and fixed to the structure and formed of a metal joint cover and the expansion joint cover when configured to move the expansion and contraction by constituting a guide groove when the expansion joint cover, and a fixed bolt to the guide groove It was achieved by including an expansion joint secured to the fitting structure.

The expansion joint portion of the problem solving means of the present invention is configured to stack the expansion joint cover to the first expansion joint cover and the second expansion joint cover to the first structure and the second structure, the second expansion joint cover 2 Seated on the structure and fixed to the side with a fixing bolt, the free end of the upper portion is configured to be seated on the structure, installed so as to overlap the free end of the second expansion joint cover, the free end of the first expansion joint cover Achieved by constructing structures so that they always overlap upon expansion and contraction.

The expansion joint portion of the problem solving means of the present invention

The expansion joint cover constitutes the first expansion joint cover and the second expansion joint cover and is laminated on the first structure and the second structure, and the second expansion joint cover is seated on the second structure and the sides are fixed by fixing bolts. And a free end formed at an upper portion of the expansion joint cover, and fixing the molding having a cover protrusion for forming an insertion space at the free end, installed to overlap the upper end of the second expansion joint cover, and a free end. The end is fitted into the inserting space of the molding, and the side is composed of a first expansion joint cover fixed to the first structure by fixing bolts. The expansion and contraction ends of the first expansion joint cover are made in the insertion space of the molding. Configured to achieve.

The effect of the present invention is the bridge expansion joint device of the concrete structure of the present invention as described above has the effect that the maintenance cost can be reduced by improving durability and extending the life.

In addition, it is possible to construct the device by adopting it to the structure with irregular surface due to cracking or damage, and it is possible to accommodate the change by temperature by constructing the expansion joint part with the spaces which are spaced apart from each other by the expansion joint to have the expansion space when expanding. There is an effect that can protect. In addition, it is a very useful invention in the safety driving and construction safety industry by absorbing the shock / vibration during the passage of the vehicle to prevent the crack of the structure and to prevent the falling of rainwater under the bridge.

With reference to the accompanying drawings, the bridge expansion joint of the concrete structure of a preferred embodiment of the present invention will be described in detail.

Bridge expansion joint device of the concrete structure of the invention shown in Figures 1 to 4 is applied to road bridges, railway bridges, etc. consisting of a plurality of top slabs and bridges that support both ends thereof, the first and second structures of the present invention structure is a top slab Or it applies to the school.

The expansion joint 200 corresponding to the expansion and contraction on the upper portion of the expansion joint space according to the change in the expansion and contraction of the structure by the change of temperature was configured.

The bridge expansion joint device of the concrete structure of the present invention is a new extension bridge for interconnecting the structures that are provided at predetermined intervals so as to have a expansion space when the expansion and contraction according to the temperature changes, and to prevent the entry of foreign matter into the expansion space and increase the aesthetics Provides a joint. The structure includes all structures formed by pouring a precast structure or concrete.

In the embodiment of the present invention shown in Figure 1, the structure is represented by the first structure 100 and the second structure 110, the expansion joint cover 120 is the first expansion joint cover 120-1 and the second Marked by expansion joint cover 120-2.

The bridge structure is provided so as to cover the dissimilar upper surface when constructed and configured to cover the dissimilar upper portion by configuring a rubber sheet portion 150, and the expansion joint formed of a metal or synthetic resin material formed on the upper portion of the rubber sheet portion The cover 120 was configured.

In addition, when the expansion joint cover 120 is coupled to the structure by constructing the guide grooves 140 to move the expansion joint cover when configured, the expansion bolt fixed to the structure by inserting the fixing bolt 130 in the guide groove 140 It was configured to include a joint 200.

The expansion joint cover 120 is preferably configured by setting the guide groove so that the change amount that is stretched when fixed to the first structure 100 and the second structure 110 can be moved within the length of the guide groove 140. Do. In addition, the fixing bolts 130 mounted on the guide grooves are fitted with washers so as not to fall into the guide grooves.

The expansion joint 200 of the problem solving means of the present invention shown in Figure 2 constitutes the expansion joint cover 120, the first expansion joint cover 120-1 and the second expansion joint cover 120-2 The first structure 100 and the second structure 110 were stacked on top of each other.

The second expansion joint cover 120-2 is seated on the second structure 110 and the side is fixed with the fixing bolts 130, and the upper end of the second expansion joint cover is installed so that the free end is seated on the structure. .

The first expansion joint cover 120-1 is installed so that the upper end of the second expansion joint cover 120-2 overlaps with the free end, and the free end of the first expansion joint cover when the structure is expanded and contracted. Always overlap.

As described above, it is preferable that the first and second expansion joint covers are configured to overlap each other, so that even when the structure is stretched and set, the length of the overlapping portions may be set according to the measured standard at the time of construction so that the expansion and contraction may be made within the nested range.

Bridge expansion joint of the concrete structure of another preferred embodiment of the present invention shown in Figures 3 and 4 was configured as described below.

The expansion joint 200 constitutes the expansion joint cover 120 by forming the first expansion joint cover 120-1 and the second expansion joint cover 120-2 to form the first structure 100 and the second structure 110. ) To be stacked on top of each other.

A cover protrusion for seating the second expansion joint cover 120-2 on the second structure 110 and fixing the side surface with a fixing bolt 130, and forming an insertion space at the upper free end of the second expansion joint cover. The molding 170 is formed so that the free end of the upper free end of the first expansion joint cover 120-1 is fitted to prevent the free end from being exposed to the outside.

The first expansion joint cover is installed so as to overlap the free end of the second expansion joint cover 120-1, and the free end of the first expansion joint cover is fitted into the insertion space of the molding 170. It is preferable to set the length of the cover projections to fit the degree of expansion so that the structure is made in accordance with the change in the cover projections of the molding.

As described above, the present invention has been described with reference to the embodiment illustrated in the drawings, but this is only an example, and those skilled in the art may make various forms of deformation and other equivalent embodiments therefrom. Will understand. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1 is a cross-sectional view showing a bridge expansion joint of a concrete structure of a preferred embodiment of the present invention.

Figure 2 is a cross-sectional view of another embodiment showing a bridge expansion joint of the concrete structure of the present invention.

Figure 3 is a cross-sectional view of the combined configuration of the molding of the bridge expansion joint of the concrete structure of the present invention.

Figure 4 is a cross-sectional view of the stretched state forming a molding in the concrete structure of the present invention.

Detailed description of the major symbols in the drawings

100: first structure 110: second structure

120: expansion joint cover 120-1: first expansion joint cover

120-2: second expansion joint cover 130: fixing bolt

140: guide groove 150: rubber sheet portion

160: cover protrusion 170: molding

200: expansion joint

Claims (3)

In the expansion joint device for one bridge to interconnect structures that are provided at predetermined intervals so as to have expansion and contraction space when expansion and contraction by temperature change, and to prevent foreign matter from entering the expansion space and to enhance aesthetics. A rubber sheet portion provided to cover the displaced upper surface of the structure; Covered on the upper portion of the rubber sheet portion and fixed to the structure and the expansion joint cover formed of a metal or synthetic resin material, and when the expansion joint cover is configured to guide and move the expansion and contraction to form a guide groove, the guide groove Bridge expansion joint device for a concrete structure, characterized in that it comprises a expansion joint fixed to the structure by fixing bolts. According to claim 1, wherein the expansion joint portion The expansion joint cover is composed of a first expansion joint cover and a second expansion joint cover to be laminated on the first structure and the second structure, The second expansion joint cover is seated on the second structure and fixed to the side with a fixing bolt, the free end is configured to be seated on the structure, It is installed so that the first expansion joint cover overlaps the free end of the second expansion joint cover, and the free end of the first expansion joint cover is configured to overlap at all times when the expansion and contraction of the structure of the concrete structure Bridge expansion joints. According to claim 1, wherein the expansion joint portion The expansion joint cover is composed of a first expansion joint cover and a second expansion joint cover to be laminated on the first structure and the second structure, The second expansion joint cover is seated on the second structure to fix the side with a fixing bolt, and constitutes a free end formed on the second expansion joint cover, and the cover end for forming an insertion space at the free end Configured by fixing the formed molding, The first expansion joint cover is installed so that the upper ends of the second expansion joint cover overlap each other, and the free end of the first expansion joint cover is fitted into the insertion space in the cover protrusion of the molding, and the side is fixed to the bolt. The bridge expansion joint device for a concrete structure, characterized in that it is fixed to the first structure to be made in the insertion space during expansion and contraction.
KR1020090030665A 2009-04-09 2009-04-09 Expansion equipment for concreate structure of bridge KR20100112251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090030665A KR20100112251A (en) 2009-04-09 2009-04-09 Expansion equipment for concreate structure of bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090030665A KR20100112251A (en) 2009-04-09 2009-04-09 Expansion equipment for concreate structure of bridge

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KR20100112251A true KR20100112251A (en) 2010-10-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101287489B1 (en) * 2011-10-05 2013-07-18 매크로드 주식회사 An expansion joint be able to laying-gab adjust
CN108755454A (en) * 2018-06-09 2018-11-06 汤永红 A kind of highway concrete-bridge expansion joint transition region repairs structure and construction method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101287489B1 (en) * 2011-10-05 2013-07-18 매크로드 주식회사 An expansion joint be able to laying-gab adjust
CN108755454A (en) * 2018-06-09 2018-11-06 汤永红 A kind of highway concrete-bridge expansion joint transition region repairs structure and construction method

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