CN112538817A - Assembled bridge expansion joint and construction process - Google Patents
Assembled bridge expansion joint and construction process Download PDFInfo
- Publication number
- CN112538817A CN112538817A CN202011473957.XA CN202011473957A CN112538817A CN 112538817 A CN112538817 A CN 112538817A CN 202011473957 A CN202011473957 A CN 202011473957A CN 112538817 A CN112538817 A CN 112538817A
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- Prior art keywords
- toothed plate
- embedded part
- plate
- embedded
- cement component
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- 238000010276 construction Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 42
- 238000013016 damping Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000011178 precast concrete Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 8
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
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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
- E01D19/06—Arrangement, construction or bridging of expansion 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
- E01D19/065—Joints having sliding plates
-
- 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
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The utility model provides an assembled bridge expansion joint, relates to bridge construction technical field, and it includes main pinion rack, vice pinion rack, prefabricated cement component, watertight fittings, built-in fitting, bolt, levelling device, damping device. The main toothed plate and the auxiliary toothed plate are matched and arranged, and both the main toothed plate and the auxiliary toothed plate are provided with bolt mounting holes; the embedded part is embedded in the base layer during bridge deck construction, and the embedded part is of a sleeve structure with internal threads. And the prefabricated cement component is provided with a through hole matched with the position of the embedded part. The leveling device is arranged above the prefabricated cement piece. The damping device is a damping rubber plate. The water stopping device is a waterproof rubber plate. The invention also provides a construction process of the assembled bridge expansion joint based on the characteristics. The invention has the advantages of simple structure, short installation time, low maintenance cost, long service life, convenient maintenance and replacement, good damping effect and capability of construction in winter.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to an assembled bridge expansion joint and a construction process.
Background
Bridge expansion joints: it is referred to that in order to meet the requirement of deck deformation, expansion joints are usually provided between two beam ends, between a beam end and an abutment, or at the hinge joint of a bridge. The function of bridge expansion joint: consists in adjusting the displacements and couplings between the superstructure caused by the vehicle loads and the bridge construction materials. Once the telescopic device of the skew bridge is damaged, the speed, the comfort and the safety of the vehicle are seriously influenced, and even the vehicle safety accident is caused.
The existing bridge expansion joint is constructed by generally pre-burying a steel bar part when a bridge deck is paved, digging a joint after the bridge deck is solidified, pouring cement after welding bolt columns on the pre-buried steel bar part, paving a waterproof plate and a comb plate before the cement is solidified, and then fastening the waterproof plate and the comb plate with the welded bolt columns by nuts. However, this construction method has the following disadvantages: 1. the welding construction needs to be carried out on the bridge deck in the whole construction process, a large amount of time needs to be consumed in the welding construction process, the bridge deck construction site is influenced by the environment, and the welding effect is difficult to guarantee; 2. carry out cement and pour after the welding is accomplished, lay waterproof board and fishback before cement solidifies then fasten with nut and welded bolt post, need a large amount of personnel at this work progress, the operation of pouring of cement receives environmental impact great, and the construction influences the quality of pouring winter to cement can spill over seam crossing, and is not pleasing to the eye, also influences the current of vehicle. Because the whole joint is integrally formed by pouring cement, cracks are easy to appear along the length direction of the bridge after the joint is affected by thermal expansion and cold contraction; 3. the maintenance cost of the whole structure is high, the replacement and maintenance are unchanged, and the service life is short; 4. the vehicle can be started only after the cement pouring is finished and the maintenance period of at least 7 days is needed, so that the construction progress is influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an assembled bridge expansion joint and a construction process, which have the advantages of simple structure, short installation time, low maintenance cost, long service life, convenience in maintenance and replacement, good damping effect and capability of being constructed in winter.
In order to solve the problems, the invention adopts the following technical scheme: an assembled bridge expansion joint is characterized by comprising a main toothed plate, an auxiliary toothed plate, a prefabricated cement component, a water stopping device, an embedded part, a bolt, a leveling device and a damping device,
the main toothed plate and the auxiliary toothed plate are matched and arranged, and both the main toothed plate and the auxiliary toothed plate are provided with bolt mounting holes;
the embedded part is embedded in the base layer during the construction of the bridge floor, the embedded part is of a sleeve structure provided with internal threads, the opening of the embedded part is upward and is vertically arranged relative to the bridge floor,
the precast cement component is provided with a through hole matched with the position of the embedded part,
the leveling device is arranged below the precast concrete part and comprises a plurality of steel plates with different thicknesses which are stacked, the steel plates can be increased or decreased according to the leveling requirement,
the damping device is a damping rubber plate, the damping device is provided with a through hole matched with the position of the embedded part,
the water stopping device is a waterproof rubber plate, the water stopping device is provided with a through hole matched with the position of the embedded part,
the bolts sequentially penetrate through the main toothed plate, the water stop device, the prefabricated cement component, the damping device and the leveling device and are tightly connected with the embedded part on one side of the main toothed plate,
vice pinion rack one side, vice pinion rack and watertight fittings between still be equipped with the slide, the slide is corrosion resistant plate, the bolt pass vice pinion rack, slide, watertight fittings, prefabricated cement component, damping device, levelling device and built-in fitting fastening connection in proper order.
Further: the sleeve structures of the adjacent embedded parts are fixed on an embedded flat plate.
The invention also provides a construction process of the assembled bridge expansion joint based on the characteristics, which comprises the following steps:
the method comprises the following steps: when the bridge deck is laid, pre-burying an embedded part, determining a pre-burying position according to the mounting positions of the main toothed plate and the auxiliary toothed plate, and enabling an upper opening of the embedded part to be over against bolt mounting holes of the main toothed plate and the auxiliary toothed plate;
step two: then, paving the bridge deck, after the paving of the bridge deck is finished, digging the joint of the bridge deck until the upper opening of the embedded part is exposed, and then leveling the base plane;
step three: sequentially placing a leveling device and a damping device, and adjusting the leveling device to enable the upper end surface of the leveling device to be parallel to the bridge deck;
step four: placing the prefabricated cement component to enable the through hole of the prefabricated cement component to be aligned with the upper opening of the embedded part;
step five: placing a water stopping device to enable a through hole in the water stopping device to be aligned with an upper opening of the embedded part;
step six: when one side of the main toothed plate is installed, the main toothed plate is directly placed, a bolt installation hole of the main toothed plate is aligned with an upper opening of the embedded part, and then the main toothed plate, the water stopping device, the prefabricated cement component, the damping device and the leveling device are sequentially penetrated through bolts to be tightly connected with the embedded part;
step seven: when one side of the auxiliary toothed plate is installed, the sliding plate is firstly placed, then the auxiliary toothed plate is placed, the bolt installation hole of the auxiliary toothed plate is aligned with the upper opening of the embedded part, and finally the bolt sequentially penetrates through the auxiliary toothed plate, the sliding plate, the water stop device, the prefabricated cement component, the damping device and the leveling device to be fixedly connected with the embedded part.
The invention has the beneficial effects that:
1. its simple structure, installation time convenience time is short, and the maintenance cost is low, long service life, it is convenient to maintain and change to the shock attenuation is effectual, can be under construction winter, and the cement part does not leak outward, can not influence the vehicle current, and increase of service life has expend with heat and contract with cold's clearance between every section of prefabricated cement spare, can prevent prefabricated cement spare fracture, and life is longer, and the construction is more convenient
2. The auxiliary toothed plate and the water stopping device are also provided with a sliding plate, the sliding plate is a stainless steel plate, and the friction part of the main toothed plate and the auxiliary toothed plate is positioned on one side of the auxiliary toothed plate, so that the sliding plate can be arranged to effectively prevent the water stopping structure from being damaged due to friction, and the friction block of the friction part is reduced.
3. The sleeve structure of several adjacent built-in fittings is fixed on an embedded flat plate, and when the construction, need not troublesome go to fix every sleeve structure's position like this, only need fix the position of embedded flat plate can, because the sleeve is fixed on embedded flat plate, make the more aspect of construction swift like this, and when need dig out seam department, dig to embedded flat plate can, and embedded flat plate also provides the reference surface of a construction, the operation of the subsequent handling of being convenient for.
4. The prefabricated cement component on be equipped with the built-in fitting position through-hole that cooperatees, because the prefabricated cement component is prefabricated in advance, so transport to the scene direct construction can, and because form for traditional pouring mode by the concatenation of a plurality of prefabricated cement components, can not receive expend with heat and contract with cold's influence, the crack can not appear, life is longer, and the construction is more convenient, the traditional long time that waits for the solidification of pouring mode has also been saved, the time limit for a project has been saved, and the construction does not receive seasonal environment's influence, the quality is more secure.
5. Damping device be the shock attenuation rubber slab, the cushioning effect that plays that can be fine has improved the life-span of using, has ensured the comfort level that the vehicle passed through.
6. The welding construction does not need to be carried out on the bridge floor in the whole construction process, so that a large amount of time for the welding construction is saved, and the problems that the welding effect is difficult to guarantee due to the influence of the environment on the bridge floor construction site are avoided.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
in the figure: the concrete structure comprises a main toothed plate 1, bolt mounting holes 2, bolts 3, auxiliary toothed plates 4, sliding plates 5, a water stopping device 6, prefabricated cement components 7, a bridge floor 8, a damping device 9, a leveling device 10 and embedded parts 11.
Detailed Description
As shown in fig. 1 and 2, the assembled bridge expansion joint comprises a main toothed plate 1, an auxiliary toothed plate 4, a prefabricated cement component 7, a water stopping device 6, an embedded part 11, a bolt 3, a leveling device 10 and a damping device 9.
Main pinion rack 1 and vice pinion rack 4 cooperate and set up, main pinion rack 1 all is equipped with bolt mounting hole 2 with vice pinion rack 4.
The embedded part 11 is embedded in the base layer during bridge deck construction, the embedded part 11 is of a sleeve structure with internal threads, and the opening of the embedded part 11 is upward and is vertically arranged relative to the bridge deck 8.
And the precast cement component 7 is provided with a through hole matched with the position of the embedded part 11.
The leveling device 10 is arranged below the precast concrete member 7 and is formed by stacking a plurality of steel plates with different thicknesses, and the steel plates can be increased or decreased according to the leveling requirement.
The damping device 9 is a damping rubber plate, and the damping device 9 is provided with a through hole matched with the position of the embedded part 11.
The water stopping device 6 is a waterproof rubber plate, and the water stopping device 6 is provided with a through hole matched with the position of the embedded part 11.
And on one side of the main toothed plate 1, the bolts 3 sequentially penetrate through the main toothed plate 1, the water stop device 6, the prefabricated cement component 7, the damping device 9, the leveling device 10 and the embedded part 11 to be tightly connected.
Vice pinion rack 4 one side, vice pinion rack 4 and watertight fittings 6 between still be equipped with slide 5, slide 5 is the steel sheet, bolt 3 pass vice pinion rack 4, slide 5, watertight fittings 6, prefabricated cement component 7, damping device 9, levelling device 10 and built-in fitting 11 fastening connection in proper order.
The sleeve structures of the adjacent embedded parts 11 are fixed on an embedded flat plate.
The invention also provides a construction process of the assembled bridge expansion joint based on the characteristics, which comprises the following steps:
the method comprises the following steps: when the bridge deck is laid, pre-burying a pre-buried part 11, determining a pre-buried position according to the installation positions of a main toothed plate 1 and an auxiliary toothed plate 4, and enabling an upper opening of the pre-buried part 11 to be over against bolt installation holes 2 of the main toothed plate 1 and the auxiliary toothed plate 4;
step two: then paving the bridge deck 8, after the paving of the bridge deck 8 is finished, planing the joint of the bridge deck 8 until the upper opening of the embedded part 11 is exposed, and then leveling the base plane;
step three: sequentially placing a leveling device 10 and a damping device 9, and adjusting the leveling device 10 to enable the upper end face of the leveling device to be parallel to the bridge floor 8;
step four: placing the prefabricated cement component 7 to enable the through hole of the prefabricated cement component 7 to be aligned with the upper opening of the embedded part 11;
step five: placing the water stopping device 6 to enable the through hole on the water stopping device 6 to be aligned with the upper opening of the embedded part 11;
step six: when one side of the main toothed plate 1 is installed, the main toothed plate 1 is directly placed, so that the bolt installation hole 2 of the main toothed plate 1 is aligned with the upper opening of the embedded part 11, and then the bolt 3 sequentially penetrates through the main toothed plate 1, the water stop device 6, the prefabricated cement component 7, the damping device 9 and the leveling device 10 to be tightly connected with the embedded part 11;
step seven: when one side of the auxiliary toothed plate 4 is installed, the sliding plate 5 is placed firstly, then the auxiliary toothed plate 4 is placed, the bolt installation hole 2 of the auxiliary toothed plate 4 is aligned with the upper opening of the embedded part 11, and finally the bolt 3 sequentially penetrates through the auxiliary toothed plate 4, the sliding plate 5, the water stopping device 6, the prefabricated cement component 7, the damping device 9, the leveling device 10 and the embedded part 11 to be fixedly connected.
The present invention is not limited to the above-described embodiments.
Claims (3)
1. An assembled bridge expansion joint is characterized by comprising a main toothed plate, an auxiliary toothed plate, a prefabricated cement component, a water stopping device, an embedded part, a bolt, a leveling device and a damping device,
the main toothed plate and the auxiliary toothed plate are matched and arranged, bolt mounting holes are formed in the main toothed plate and the auxiliary toothed plate,
the embedded part is embedded in the base layer during the construction of the bridge floor, the embedded part is of a sleeve structure provided with internal threads, the opening of the embedded part is upward and is vertically arranged relative to the bridge floor,
the precast cement component is provided with a through hole matched with the position of the embedded part,
the leveling device is arranged below the precast concrete part and comprises a plurality of steel plates with different thicknesses which are stacked, the steel plates can be increased or decreased according to the leveling requirement,
the damping device is a damping rubber plate, the damping device is provided with a through hole matched with the position of the embedded part,
the water stopping device is a waterproof rubber plate, the water stopping device is provided with a through hole matched with the position of the embedded part,
the bolts sequentially penetrate through the main toothed plate, the water stop device, the prefabricated cement component, the damping device and the leveling device and are tightly connected with the embedded part on one side of the main toothed plate,
vice pinion rack one side, vice pinion rack and watertight fittings between still be equipped with the slide, the slide is corrosion resistant plate, the bolt pass vice pinion rack, slide, watertight fittings, prefabricated cement component, damping device, levelling device and built-in fitting fastening connection in proper order.
2. The assembled bridge expansion joint of claim 1, wherein the sleeve structures of adjacent embedded parts are fixed on an embedded flat plate.
3. The construction process of an assembled bridge expansion joint according to claim 1 or 2, comprising the steps of:
the method comprises the following steps: when the bridge deck is laid, pre-burying an embedded part, determining a pre-burying position according to the mounting positions of the main toothed plate and the auxiliary toothed plate, and enabling an upper opening of the embedded part to be over against bolt mounting holes of the main toothed plate and the auxiliary toothed plate;
step two: then, paving the bridge deck, after the paving of the bridge deck is finished, digging the joint of the bridge deck until the upper opening of the embedded part is exposed, and then leveling the base plane;
step three: sequentially placing a leveling device and a damping device, and adjusting the leveling device to enable the upper end surface of the leveling device to be parallel to the bridge deck;
step four: placing the prefabricated cement component to enable the through hole of the prefabricated cement component to be aligned with the upper opening of the embedded part;
step five: placing a water stopping device to enable a through hole in the water stopping device to be aligned with an upper opening of the embedded part;
step six: when one side of the main toothed plate is installed, the main toothed plate is directly placed, a bolt installation hole of the main toothed plate is aligned with an upper opening of the embedded part, and then the main toothed plate, the water stopping device, the prefabricated cement component, the damping device and the leveling device are sequentially penetrated through bolts to be tightly connected with the embedded part;
step seven: when one side of the auxiliary toothed plate is installed, the sliding plate is firstly placed, then the auxiliary toothed plate is placed, the bolt installation hole of the auxiliary toothed plate is aligned with the upper opening of the embedded part, and finally the bolt sequentially penetrates through the auxiliary toothed plate, the sliding plate, the water stop device, the prefabricated cement component, the damping device and the leveling device to be fixedly connected with the embedded part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473957.XA CN112538817A (en) | 2020-12-14 | 2020-12-14 | Assembled bridge expansion joint and construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473957.XA CN112538817A (en) | 2020-12-14 | 2020-12-14 | Assembled bridge expansion joint and construction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112538817A true CN112538817A (en) | 2021-03-23 |
Family
ID=75020125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011473957.XA Pending CN112538817A (en) | 2020-12-14 | 2020-12-14 | Assembled bridge expansion joint and construction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112538817A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186814A (en) * | 2021-04-25 | 2021-07-30 | 广州市市政工程设计研究总院有限公司 | Bridge damping expansion joint structure and construction method thereof |
| CN115418939A (en) * | 2022-09-05 | 2022-12-02 | 天津交科新材料有限公司 | Unit type prefabricated fast-assembling bridge expansion device and construction method |
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| CN214939226U (en) * | 2020-12-14 | 2021-11-30 | 衡水安夙路桥材料有限公司 | Assembled bridge expansion joint |
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| DE102015115505A1 (en) * | 2014-09-16 | 2016-03-17 | Zujiang Liu | Bridge expansion joint and attachment method for it |
| CN104762874A (en) * | 2015-04-08 | 2015-07-08 | 杨皓玮 | Joint expansion and contraction device for assembled bridge and mounting method of joint expansion and contraction device |
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| CN214939226U (en) * | 2020-12-14 | 2021-11-30 | 衡水安夙路桥材料有限公司 | Assembled bridge expansion joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113186814A (en) * | 2021-04-25 | 2021-07-30 | 广州市市政工程设计研究总院有限公司 | Bridge damping expansion joint structure and construction method thereof |
| CN115418939A (en) * | 2022-09-05 | 2022-12-02 | 天津交科新材料有限公司 | Unit type prefabricated fast-assembling bridge expansion device and construction method |
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