CN2337184Y - Piling simple support steel-plate bridge expansion joint apparatus - Google Patents
Piling simple support steel-plate bridge expansion joint apparatus Download PDFInfo
- Publication number
- CN2337184Y CN2337184Y CN 98227049 CN98227049U CN2337184Y CN 2337184 Y CN2337184 Y CN 2337184Y CN 98227049 CN98227049 CN 98227049 CN 98227049 U CN98227049 U CN 98227049U CN 2337184 Y CN2337184 Y CN 2337184Y
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- steel plate
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Abstract
The utility model relates to a piling simple support steel-plate bridge expansion joint apparatus, which is arranged in an expansion joint of a bridge floor. The size of a cross section of a double-layer concrete operating groove is provided with a wide upper part and a narrow lower part, a lower layer steel plate is supported by a simple support seat in a lower layer groove, two upper layer steel plates are simply supported by a support seat which is arranged in the lower layer steel plate and an upper operating groove, and the utility model becomes a four joints structure. An expansion amount of the lower layer can be adjusted by a sliding rotary plate, and the expansion amount of the upper layer can be adjusted by a toothed bar and a tooth gear. The utility model is a novel expansion joint structure, which has the advantages of firm structure, great expansion amount, low mounting height and low manufacture cost, and the utility model is suitable for using when a big span bridge and a continuous type long bridge are built in China.
Description
The utility model relates to the bridge field, particularly is suitable for the deck expansion joint structure of the big-and-middle-sized or super-huge bridge in highway and city.
Bridge expansion joint installation is the important component part of bridge construction, but because shared engineering cost is seldom often ignored by people, does not have significant improvement and innovation for a long time.Because of stretching device goes to pot or the improper thing that influences the normal operation of bridge of stretching device structure also happens occasionally.Along with the development of Chinese society doctrine building cause, construction long-span bridge beam and the long bridge of continous way are more and more since the opening of especially carrying out reforms, and it is more outstanding that the backward state of stretching device just seems.Because China oneself can not provide rational in infrastructure, durable in use, especially the stretching device that adapts to big displacement requirement, many big-and-middle-sized or super-huge bridge engineering have to select for use external product, as German Mao Le company product, U.S. water Sen Bo Man product, Switzerland agate lattice Bagong department product etc., to satisfy the engineering construction needs.Though the external product quality can be slapped, good endurance, it costs an arm and a leg, and needs a large amount of foreign exchanges of cost, very is not fit to China's national situation.This situation requires the rapid change of domestic highway bridge scientific and technological circle.Therefore, seek the bridge extension joint of utility model, import substitutes have become our a very urgent task.
The purpose of this utility model is: design a kind of superposed type tube and prop up the steel slab bridge expansion joint installation of girder, be fit to the long bridge of long-span bridge beam and continous way and use, with the substituting import one product.
The utility model is on the basis of " steel plate combined bridge expansion joint installation " achievement in research, big stroke modulus formula bridge expansion joint installation at the shrinkage joint development and Design of the big stroke of long-span bridge beam and the long bridge of continous way, belong to four crack structures, has stroke big (0-320mm), setting height(from bottom) low (≤280mm), cost low (500kg/ rice seam), outstanding features such as maintenance easy accessibility.
The technical solution of the utility model is:
At the deck expansion joint place, it is double-deck concrete work nest wide at the top and narrow at the bottom that cross dimensions is set, and concrete work nest length and shrinkage joint are isometric.In lower floor's concrete work nest, prop a steel plate isometric, below end face and upper strata work nest, maintain an equal level, and make wide being divided into two of seam of deck expansion joint with the shrinkage joint with some groups of polytetrafluoroethylene (PTFE) neoprene bearing tubes.Between tube props up two adjacent groups bearing under the steel plate, adopt one group of elliptic plane guide rail is set, the assembling steel revolves slide plate it on, makes a tube steel plate placed in the middle relatively, thereby makes the wide work plane of formation double slit below the concrete work nest of upper strata.Be respectively the center again with the seam on this work plane, stacked two blooms arranged side by side, steel plate length and shrinkage joint are isometric, and each personal some groups of polytetrafluoroethylene (PTFE) neoprene bearing tube props up, gear and ratch linkage are set between the two adjacent groups bearing, and it is placed in the middle relatively to make two tubes prop up steel plate.Two tubes prop up the steel plate end face and bridge floor maintains an equal level.Spelling two Z fonts shaped steel and lower floor's steel plate end face centering welding are fixing between two block plates again, every tube props up the both sides welding C font shaped steel of bloom, side steel tank at C font shaped steel and Z font shaped steel or C font shaped steel is embedded in W type rubber strip respectively, forms the superposed type tube with four crack structures and props up the steel slab bridge expansion joint installation of girder.
Fig. 1 is the utility model structural representation
Among the figure: 1 C font shaped steel, 2 W type rubber strips, 3 Z font shaped steel, 4 connect steel plate 5 corrosion resistant plates, 6 lower floor's steel plates, 7 upper strata steel plates, 8 billets, the sliding rotating plate of 9 steel, 10 oval rail steel plates, 11 bearings location connecting plate, 12 F4 neoprene bearings, 13 bearing position-limited racks, 14 bearing billets, 15 steel fiber concretes, 16 ratch, 17 gear shafts, 18 gears
Further introduce technology contents of the present utility model and implementation method below in conjunction with accompanying drawing:
The superposed type tube props up the steel slab bridge expansion joint installation of girder by C font shaped steel 1, W type rubber strip 2, Z font shaped steel 3, upper strata steel plate 7, lower floor's steel plate 6, F
4Neoprene bearing 12, sliding rotating plate centering means 9 and 10, ratch and critical pieces such as gear centering means 16,17 and 18 are combined into four crack structures in the bridge expansion joint installation.
Form the side bar of both sides, shrinkage joint by C font shaped steel 1, side bar by the dowel (not shown) with by the steel fiber concrete anchoring.Be welded into the upper strata tube with C font shaped steel 1 and hot rolled steel plate 7 and billet 8 and corrosion resistant plate 5 and prop up steel plate 7.With Z font shaped steel 3 and hot rolled steel plate 6 and be connected steel plate 4 and corrosion resistant plate 5 is welded into lower floor's tube and props up steel plate 6.Between C font shaped steel and C font shaped steel or C font shaped steel and Z font shaped steel, embed the banded sealing joint strip 2 of an elastic sealed body W type respectively.Bearing billet 14 is anchored into steel fiber concrete 15, (or in lower floor's steel plate 6 end face both sides) solid welding bearing position-limited rack 13 on it, and put into F
4Neoprene bearing constitutes the upper strata elastic support body.Constitute lower floor's elastic support body with same method.After the levels elastic support body links to each other by bearing location connecting plate 11, fixing with 1 welding of side bar C font shaped steel again.Going up (descend) layer tube steel plate is supported by (descend) layer elastic support body (it is uniform that length direction is stitched on the edge) on some groups respectively.Inlay the minimum sliding bearing face of corrosion resistant plate formation friction factor that the polytetrafluoroethylene (PTFE) and the weldering that are attached to the bearing top layer are attached to (descending) layer steel plate bottom surface.
The diagonal angle setting between the per two groups of bearings of lower floor of oval rail steel plate 10, and with 14 welding of bearing billet, anchor in the steel fiber concrete.The oval rail steel plate 10 of two adjacent groups is that the center is symmetrical arranged with one group of bearing therebetween.The two ends, bottom surface of the sliding rotating plate 9 of steel are equipped with axle and sleeve, so that slide and rotation along the chute of oval rail steel plate 10.Its end face center is provided with fixed axis, and the axis hole set with the bottom center of lower floor steel plate 6 matches, and constitutes sliding rotating plate centering means.Between some groups of such centering means were distributed in two groups of bearings in lower floor's work nest along the seam length direction, it was placed in the middle relatively to make lower floor's tube prop up steel plate 6, was divided into two the seam between beam-ends is wide.
Ratch 16 is welded in the inside bottom of side bar C font shaped steel 1 and central sill Z font shaped steel 3 respectively, is controlling gear 18 in groups.Gear shaft 17 is welded on bottom center's line of upper strata steel plate 7.Gear 18 is enclosed within on the gear shaft 17 and does clockwise direction or rotation withershins along with the linear reciprocating motion of ratch 16, and gear shaft is motionless relatively all the time, thereby constitutes one group of ratch and gear centering means.Between some groups of such centering means were distributed in per two groups of bearings in the work nest of upper strata along the seam length direction, the seam below it was wide and placed in the middle relatively to make two upper strata tubes prop up steel 7 plates, makes four of this device to stitch the wide equidistant control that reached.
Design of the present utility model reaches following technical indicator:
1, design load automobile-20 grade, check load trailer-120
2, environment for use temperature :-15 ℃～+ 50 ℃
3, stroke: 0-320mm
4, the every linear meter(lin.m.) of Unit Weight: 520Kg/
5, design life: 10 years
The utlity model has following advantage and effect:
1, the structure setting height(from bottom) is low: minimum setting height(from bottom) in the product of the same type, domestic first Wound.
2, production and transport is convenient: factory's typing is produced and assembling, integral body or segmentation automotive To engineering site.
3, be easy to installation: routine operation, segmentation or integral installation, the on-the-spot adjustment Module and stitch wide.
4, maintenance easy accessibility: tube steel plate can the scene be successively opened or is reset the easy access internal construction.
5, the water proof and dust proof performance is good: W type rubber strip can effectively drain the water away, anti-dust fall, and bilge water resisting corrodes bridge pad.
6, vibration is little, and noise is low, economic and reliable.
The utility model is specially adapted to the shrinkage joint of the big stroke of long-span bridge beam and continuous long bridge and installs and uses, and is applicable to that the Jiu Qiao shrinkage joint of highway and the medium-and-large-sized bridge of Urban Bridge is transformed and newly-built bridge engineering.
Claims (3)
1, the superposed type tube props up the steel slab bridge expansion joint installation of girder, it is characterized in that: there is section double-deck concrete work nest 15 wide at the top and narrow at the bottom at the place, shrinkage joint, the some groups of polytetrafluoroethylene (PTFE) neoprene bearings 12 lower floor steel plates 6 isometric with the shrinkage joint that prop are arranged in lower floor's work nest, deck expansion joint is divided into two, 12 of adjacent neoprene bearings one group of elliptic plane track is arranged, the locator card at the sliding rotating plate of steel 9 two ends stretches in the track, location Xiao of its upper end, middle part is enclosed within on lower floor's steel plate 6, making upper strata concrete work nest is two wide work planes, be respectively the stacked two blocks of upper strata steel plates 7 in center again with the seam on this work plane, its length and shrinkage joint are isometric, each personal some groups of polytetrafluoroethylene (PTFE) neoprene bearing is 12 below upper strata steel plate 7, the ratch 16 that joint stitching is arranged between two adjacent groups bearing 12,16 of two ratch have the gear 18 that cooperates with it, gear shaft 17 is inserted in the corresponding aperture below the steel plate of upper strata, two blocks of upper strata steel plates 7 maintain an equal level with bridge floor, two Z font shaped steel 3 of splicing and lower floor steel plate 6 end face centerings welding are fixing between two block plates 7 welds C font shaped steel 1 with the corresponding both sides work plane of two upper strata steel plates 7, at C type and Z-shape steel 1,3 groove is embedded in W type rubber strip 2, makes it to become Fpir Crevices structure superposition formula tube and props up the steel plate shrinkage joint.
2, the superposed type tube according to claim 1 props up the steel slab bridge expansion joint installation of girder, it is characterized in that: the bearing place is connected with corrosion resistant plate 5 below upper strata steel plate 7, lower floor's steel plate 6.
3, the superposed type tube according to claim 1 props up the steel slab bridge expansion joint installation of girder, it is characterized in that: polytetrafluoroethylene (PTFE) tube bearing 12 is by bearing location connecting plate 11, and bearing billet 14, bearing position-limited rack 13 combine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227049 CN2337184Y (en) | 1998-06-10 | 1998-06-10 | Piling simple support steel-plate bridge expansion joint apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227049 CN2337184Y (en) | 1998-06-10 | 1998-06-10 | Piling simple support steel-plate bridge expansion joint apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2337184Y true CN2337184Y (en) | 1999-09-08 |
Family
ID=33977444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227049 Expired - Fee Related CN2337184Y (en) | 1998-06-10 | 1998-06-10 | Piling simple support steel-plate bridge expansion joint apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2337184Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270566B (en) * | 2007-03-19 | 2010-12-01 | 黄垤树 | Expanded joint structure capable of automatically adjusting gap |
| CN110644355A (en) * | 2019-09-27 | 2020-01-03 | 长安大学 | Module type steel expansion joint and working process thereof |
| CN111794090A (en) * | 2020-07-15 | 2020-10-20 | 玛格巴（上海）桥梁构件有限公司 | Pavement expansion joint structure with central limiting function |
-
1998
- 1998-06-10 CN CN 98227049 patent/CN2337184Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270566B (en) * | 2007-03-19 | 2010-12-01 | 黄垤树 | Expanded joint structure capable of automatically adjusting gap |
| CN110644355A (en) * | 2019-09-27 | 2020-01-03 | 长安大学 | Module type steel expansion joint and working process thereof |
| CN110644355B (en) * | 2019-09-27 | 2021-01-26 | 长安大学 | Module type steel expansion joint and working process thereof |
| CN111794090A (en) * | 2020-07-15 | 2020-10-20 | 玛格巴（上海）桥梁构件有限公司 | Pavement expansion joint structure with central limiting function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |