CN202430628U - Ultra-large displacement bridge telescopic device - Google Patents
Ultra-large displacement bridge telescopic device Download PDFInfo
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- CN202430628U CN202430628U CN2011205276077U CN201120527607U CN202430628U CN 202430628 U CN202430628 U CN 202430628U CN 2011205276077 U CN2011205276077 U CN 2011205276077U CN 201120527607 U CN201120527607 U CN 201120527607U CN 202430628 U CN202430628 U CN 202430628U
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Abstract
The utility model discloses an ultra-large displacement bridge telescopic device and belongs to the technical field of highway bridges. The ultra-large displacement bridge telescopic device comprises a supporting system and a profile steel component which are arranged in a mutually crossed manner; the supporting system is transversely lapped on beam bodies on two sides of a bridge in the direction of a cross bridge; a limiting system is arranged at the lower part of the profile steel component; a displacement control system and an anchorage system are arranged on the profile steel component; the profile steel component comprises a plurality of middle beam profile steels; the supporting system comprises a supporting hanger; and the middle beam profile steels are connected with the supporting hanger through wedge-shaped anti-loosening thread pairs of 30 degrees or down bolts. The ultra-large displacement bridge telescopic device has the advantages of simple structure, simplicity and convenience in operation, safety and reliability in use, low cost, safety and reliability in bearing, uniform displacement control and high driving safety and is worthy of being popularized and applied.
Description
Technical field
The utility model relates to a kind of highway bridge technical field, particularly a kind of super large displacement bridge extension joint.
Background technology
In the existing highway bridge stretching device, big displacement modulus formula stretching device has: advantage extensive uses in the suspension bridge of striding the footpath greatly, cable stayed bridge such as supporting capacity is strong, anti-skidding, good water-proof effect, installation are simple, easy to maintenance.Big displacement modulus formula stretching device has three kinds of forms: lattice beam formula, rotary shaft and straight beam formula.
In three kinds of form of structure of big displacement modulus formula stretching device, straight beam formula stretching device is a kind of preferably, and the big displacement stretching device of straight beam formula is by four big systems: supporting system, displacement system, anchor system, waterproofing system are formed.
The displacement control system and the supporting system of straight beam formula stretching device are separate, and displacement control system is made up of rubber shear spring, spring coupling plate, spring anchorage bracket etc., and the rubber shear spring connects in groups with the mode of series connection.Stretching device realizes stitching wide control through the equivalent shear strain of rubber shear spring.
The big displacement stretching device of straight beam formula is in extensive use, because some following problems have also appearred in the other factorses such as overload of vehicle.
1, stretching device central sill fracture;
2, stretching device displacement control is inhomogeneous, stitches wide serious ultra wide individually;
When 3, vehicle is through stretching device, the car of jumping phenomenon is arranged;
When 4, vehicle is through stretching device, skidding is arranged;
5, width of cloth joint misplaces, leaks about stretching device;
6, stretching device is under the situation of uninterrupted traffic, and part replacement is difficult.
The reason that the above problem appears in stretching device is following:
1, the reason of central sill fracture:
(1) with in the past compare, overload of vehicle, the hypervelocity phenomenon more and more serious, existing 80 * 120 central sill shaped steel can not well satisfy the carrying requirement.
(2) for arranging displacement control system, central sill boring is more, causes that easily stress is concentrated, thereby causes the central sill fracture.
(3) elastomeric bearing causes central sill to come to nothing owing to reasons such as aging, fatigue are damaged, and the supporting span becomes big, causes the central sill fracture.
2, uneven reason is controlled in displacement:
(1) the displacement control system arrangement is unreasonable, causes the displacement control not enough, thereby causes displacement inhomogeneous.
(2) the used traditional rubber shear spring shearing force of displacement control system is not enough, can not overcome the frictional force of supporting system, causes shear transfer to be obstructed easily, thereby causes displacement control system to lose efficacy.
(3) traditional rubber shear spring, ageing-resistant relatively poor with fatigue resistance, in the use of stretching device, destroy easily, cause displacement control to be lost efficacy.
(4) stretching device only is provided with single displacement control system, and the displacement insurance system is not set, and after the displacement control system that is provided with lost efficacy for a certain reason, central sill can not get constraint control, causes respectively stitching wide inhomogeneous.
3, produce the reason of jumping car:
(1) the used bolt of supporting system is not taked proof measures; Under the long-term percussion of car load, bolt is easy to loose or dislocation, behind the hanger bolt loose or dislocation; Can lose the original pretightning force of elastomeric bearing; When vehicle passes through stretching device, can produce very big bounce, cause jumping the generation of car phenomenon.
(2) the used bolt of displacement system is not taked proof measures; Under the long-term percussion of car load; Bolt is easy to loose or dislocation, after T shape frame bolt looseness comes off, can cause displacement control system to lose efficacy; When vehicle passes through ultra wide seam wide (the central sill gap is greater than 80mm), then can cause the jumping car.
4, the reason of vehicle slip:
Modulus formula stretching device relies on the gap between the central sill, self has excellent antiskid function; Therefore traditional modulus formula stretching device is not all taked extra non-skid feature; But for big displacement or super large displacement modulus formula stretching device, it is anti-skidding only to rely on the central sill gap, and skidproof effect is unfavorable; Under bad weathers such as sleet, vehicle through the time skid easily.
5, the reason of laterally sector deformed and vertical dislocation appears in stretching device:
Large span stayed-cable bridge, suspension bridge based on floating system or the design of half floating system are had relatively high expectations to horizontal, the vertical corner of stretching device; Reach ± more than 0.025 radian, traditional big displacement modulus formula stretching device is difficult to satisfy so high corner reciprocal requirement.Therefore to the bridge wind-engaging carry wait other factors to produce horizontal, vertical displacement after, stretching device is easy to occur permanent sector deformed and vertical dislocation.
6, under the situation of uninterrupted traffic, fragile part is changed reason of difficulty:
Traditional modulus formula stretching device has been ignored fragile part such as replacing problems such as shear spring, elastomeric bearing on structure design, but after these damage of components, changes comparatively difficulty.
Above-described problem all is problem and the defective that big displacement modulus formula stretching device exists; These problems and defective have a strong impact on the safe operation and the traffic safety of bridge; If the untimely solution of these problems and defective is with the development and the application that seriously restrict big displacement modulus formula stretching device.
The utility model content
The goal of the invention of the utility model is: to the problem of above-mentioned existence; Overcome in the prior art the big displacement modulus formula stretching device deficiencies such as vehicle-mounted power is not enough, displacement control is inhomogeneous of driving a vehicle, a kind of super large displacement modulus formula highway stretching device be provided, this stretching device bearing safety is reliable, displacement control evenly; Travel safety is high; And improve the anti-loosening property of whole stretching device structure, guarantee its Stability Analysis of Structures, safe and reliable.
The technical scheme that the utility model adopts is following:
The super large displacement bridge extension joint of the utility model; It comprises supporting system and the shaped steel assembly that mutual square crossing is arranged; Said supporting system rides over the Liang Tishang of bridge both sides sidelong along cross-bridges; The bottom of said shaped steel assembly is provided with caging system, and said shaped steel assembly is provided with displacement control system and anchor system, and said shaped steel assembly comprises some central sill shaped steel; Said supporting system comprises the supporting suspension bracket, connects perhaps Tang Shi Bolt Connection through 30 ° of wedge shape checknut width of cloth between said central sill shaped steel and the supporting suspension bracket.
Owing to adopted said structure,, made supporting system be connected closely with the shaped steel assembly through the supporting system and the shaped steel assembly of mutual arranged crosswise; And its formed stretching device sound construction, reliable guarantees its bearing safety, and supporting system rides over the beam body of bridge both sides sidelong along cross-bridges; Just supporting system is played a supporting role across the Liang Tishang at bridge, and the bottom of assembly is provided with caging system; Limit the displacement of stretching device, thereby can control the displacement of bridge, make displacement control evenly; The shaped steel assembly is provided with displacement control system and anchor system, thereby can control the displacement of stretching device, and guarantees the fixing of shaped steel assembly; Thereby guarantee that bearing safety is reliable, displacement control is even, travel safety is high.Said shaped steel assembly comprises some central sill shaped steel, and said supporting system comprises the supporting suspension bracket, connects perhaps Tang Shi Bolt Connection through 30 ° of wedge shape checknut width of cloth between said central sill shaped steel and the supporting suspension bracket; Improve the anti-loosening property of whole stretching device structure, guarantee its Stability Analysis of Structures, safe and reliable; The super large displacement bridge extension joint of the utility model, simple in structure, easy and simple to handle; With low cost, utilization is worthy to be popularized.
The super large displacement bridge extension joint of the utility model, said supporting suspension bracket is shape of the mouth as one speaks integral sealing structure, and the supporting suspension bracket be placed in outside the bearing cross beam, the supporting suspension bracket side be provided with limit base.
Because adopted said structure, described bearing cross beam between two supported boxs, to be provided with several supporting suspension brackets, described hanging holder set is a shape of the mouth as one speaks integrally closed structure; Be set on the bearing cross beam, be provided with the pressure-bearing bearing between supporting suspension bracket and the bearing cross beam and compress bearing, described supporting suspension bracket laterally disposed has limit base; The described bearing that compresses also is provided with suitable pretightning force; Assurance compresses bearing and the pressure-bearing bearing can fit tightly with bearing cross beam, can well absorb the percussion of car load, and the side of supporting suspension bracket is provided with limit base; Can guarantee suspension bracket can be on bearing cross beam free parallel sliding, thereby guarantee safe and reliable.
The super large displacement bridge extension joint of the utility model is provided with the waterproof sealing adhesive tape between the two adjacent central sill shaped steel, and said central sill shaped steel end face is processed with antiskid groove.
Owing to adopted said structure; The shaped steel assembly is mainly formed by some central sill shaped steel side by side, guarantees carrying capacity, and is provided with the waterproof sealing adhesive tape between the two adjacent central sill shaped steel; Guarantee the sealing between each beam shaped steel; Avoid foreign material such as rainwater to enter in the stretching device,, thereby guaranteed application life of stretching device its corrosion.When heavy duty, high density particularly overload, exceed the speed limit the more traffic operating mode of car; Tradition support interval central sill shaped steel application life down, design can be shortened greatly, and the lost of life of supporting system just is assurance stretching device load bearing system application life; Increase the safety of products system; Adopt the novel big central sill shaped steel of up-to-date 90x130, and adopted some groups of supporting systems, guaranteed supporting power.Central sill shaped steel end face is processed with antiskid groove, and the section form of antiskid groove can be circular arc, del, trapezoidal etc., and antiskid groove can increase frictional resistance, avoids vehicle slip, guarantees traffic safety.
The super large displacement bridge extension joint of the utility model; Said supporting system comprises fixed end supported box, bearing cross beam, supporting suspension bracket and movable end supported box; Said fixed end supported box and movable end supported box are separately fixed at the Liang Tishang of bridge both sides; Connect through bearing cross beam in two supported boxs, said bearing cross beam is set with the supporting suspension bracket outward, and said supporting system is fixedly connected with central sill shaped steel through bearing cross beam.
Owing to adopted said structure, can guarantee that the structure of whole supporting system is surely leaned on, thereby guarantee that whole supporting system carrying capacity reaches instructions for use; And can reach the requirement of displacement; Said bearing cross beam through the pressure-bearing bearing with compress bearing and be connected with backbone type steel bomb property, thereby can guarantee to lean on being connected surely between supporting system and the central sill shaped steel, just guarantee to lean on being connected surely between supporting system and the shaped steel assembly; Thereby the structure that can guarantee whole stretching device is surely leaned on; Carrying capacity is big, and long service life is safe and reliable.
The super large displacement bridge extension joint of the utility model; One end of said bearing cross beam is fixed in the fixed end supported box; The other end can relatively move in the movable end supported box through elastomeric bearing; Be provided with spherical bearing between said bearing cross beam and movable end supported box and the fixed end supported box and compress bearing, be provided with the pressure-bearing bearing between said supporting suspension bracket and the bearing cross beam and compress bearing.
Owing to adopted said structure, an end of bearing cross beam is fixed in the fixed end supported box, and the other end can relatively move in the movable end supported box, thereby can satisfy the requirement of the stroke of stretching device.Compress bearing, pressure-bearing bearing employing polyurethane material, can play cushioning effect, have absorbing preferably, supporting capacity, anti-environmental aging and stress relaxation side, thereby make longer service life.The existence of spherical bearing, stretching device are well positioned to meet laterally, vertically drifting about of bridge and rotate requirement, have avoided the friction infringement to supported box of moving of bearing cross beam, thereby can guarantee displacement control evenly, guarantee traffic safety.
The super large displacement bridge extension joint of the utility model; Said caging system comprises spacing case, limiting plate, spacing band holder, spacing band and fixation clip; Said spacing case is fixed on the central sill shaped steel of shaped steel assembly end; Be provided with limiting plate in the said spacing case, and be provided with fixation clip in the bottom of central sill shaped steel, said spacing band passes fixation clip and is fixed on the limiting plate.
Owing to adopted said structure; In central sill shaped steel bottom caging system is set, and most importantly this caging system be cascaded all central sill shaped steel side by side through spacing band, thereby play spacing effect; Adopt this caging system; Can control the maximal dilation amount of stretching device, thus guaranteed to be to use safe and reliable, increase its application life.
The super large displacement bridge extension joint of the utility model; Said displacement control system comprises displacement case, polyurethane shear spring, spring fixed seat and spring coupling plate; Said moving on the central sill shaped steel that case is fixed in shaped steel assembly end; Said spring coupling plate links together two adjacent central sill shaped steel through the polyurethane shear spring; Said spring coupling plate middle part is fixedly connected with central sill shaped steel through spring fixed seat, and the quantity of polyurethane shear spring increases to movable end from the stretching device fixed end successively.
Owing to adopted said structure; The control of stretching device displacement system is reliable, effective, stitches wide good uniformity, and the displacement control system arrangement rationally, effectively; Elastic displacement control element quantity increases to movable end from the stretching device fixed end successively; Core parts-shear spring has adopted the polyurethane rubber shear spring in the displacement control system, adopts polyurethane to replace General Purpose Rubber, and preceding shear force increases, the endurance type is strong.Adopted stopping means, displacement control dual fail-safe effect guarantees that travel safety is high.
The super large displacement bridge extension joint of the utility model, said bearing and the pressure-bearing bearing of compressing adopts polyurethane to process.
Owing to adopted said structure, compress bearing, the pressure-bearing bearing has the superiority that General Purpose Rubber is difficult to reach aspect absorbing, supporting capacity, anti-environmental aging and the stress relaxation, thereby make the stretching device longer service life.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
1. the super large displacement bridge extension joint of the utility model is simple in structure, easy and simple to handle, safe and reliable, with low cost, and utilization is worthy to be popularized;
2. the super large displacement bridge extension joint of the utility model, bearing safety is reliable, displacement control evenly, travel safety is high.
Description of drawings
Fig. 1 is the structural representation of the super large displacement bridge extension joint of the utility model;
Fig. 2 is the structural representation of supporting system in the utility model;
Fig. 3 is the structural representation of caging system in the utility model;
The structural representation of shaped steel assembly in Fig. 4 the utility model;
The structural representation of displacement control system in Fig. 5 the utility model.
Mark among the figure: 1-supporting system, 2-caging system, 3-shaped steel assembly, 4-displacement control system, 5-anchor system; 1-1-fixed end supported box, 1-2-supports suspension bracket, 1-3-bearing cross beam assembly, 1-4-pressure-bearing bearing, 1-5-compress bearing, the 1-6-spherical bearing; 1-7-movable end supported box, the spacing case of 2-1-, 2-2-limiting plate, the spacing band holder of 2-3-; The spacing band of 2-4-, 2-5-fixation clip, 3-1-central sill shaped steel, 3-2-waterproof sealing adhesive tape; 4-1-displacement case, 4-2-polyurethane shear spring, 4-3-spring fixed seat, 4-4-spring coupling plate.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Embodiment 1; The super large displacement bridge extension joint of the utility model; It comprises the supporting system 1 and shaped steel assembly 3 that mutual square crossing is arranged; Said supporting system 1 is some groups with shaped steel assembly 3, and concrete quantity is that those skilled in the art select according to site operation and designing institute, and said supporting system 1 rides over the Liang Tishang of bridge both sides sidelong along cross-bridges; The bottom of said shaped steel assembly 3 is provided with caging system 2, and said shaped steel assembly 3 is provided with displacement control system 4 and anchor system 5.Caging system 2 is united the displacement that is used to control stretching device with displacement control system 4, plays the dual fail-safe effect, thus can guarantee to use safe and reliable; Anchor system 5 is used for each assembly is linked together; Thereby form whole holding capacity structure, guarantee that its bearing capacity reaches requirement, thereby overcome deficiency of the prior art; Said shaped steel assembly 3 comprises some central sill shaped steel 3-1; Said supporting system 1 comprises supporting suspension bracket 1-2, through 30 ° of wedge shape checknut pairs or Tang Shi Bolt Connection, improves the anti-loosening property of whole stretching device structure between said central sill shaped steel 3-1 and the supporting suspension bracket 1-2.
Embodiment 3 and embodiment 1, embodiment 2 are similar; Its difference is: further said supporting system 1 is comprised fixed end supported box 1-1, bearing cross beam, supporting suspension bracket 1-2, bearing cross beam 1-3 and movable end supported box 1-7; Said fixed end supported box 1-1 and movable end supported box 1-7 are separately fixed at the Liang Tishang of bridge both sides; Connect through bearing cross beam in two supported boxs; Said bearing cross beam is set with bearing cross beam 1-3 and supporting suspension bracket 1-2 outward, and said supporting system 1 is fixedly connected with central sill shaped steel 3-1 through bearing cross beam 1-3.Especially; One end of said bearing cross beam is fixed in the fixed end supported box 1-1; The other end can relatively move in movable end supported box 1-7 through spherical bearing 1-6; Be provided with spherical bearing 1-6 between said bearing cross beam and the movable end supported box 1-7 and compress bearing 1-5, be provided with pressure-bearing bearing 1-4 between said supporting suspension bracket 1-2 and the bearing cross beam and compress bearing 1-5.Said supporting suspension bracket 1-2 is shape of the mouth as one speaks integral sealing structure, and supporting suspension bracket 1-2 is placed in outside the bearing cross beam, is provided with limit base at the side of supporting suspension bracket 1-2.
Embodiment 4 and embodiment 1, embodiment 2, embodiment 3 are similar; Its difference is: the outer wall of said bearing cross beam is provided with corrosion resistant plate; Said spherical bearing 1-6 with compress bearing 1-5 and be provided with the tetrafluoro slide plate with the junction of bearing cross beam, tetrafluoro slide plate and corrosion resistant plate applying.
Embodiment 5 and embodiment 1, embodiment 2, embodiment 3, embodiment 4 are similar; Its difference is: said caging system 2 comprises spacing case 2-1, limiting plate 2-2, spacing band holder 2-3, spacing band 2-4 and fixation clip 2-5; Said spacing case 2-1 is fixed on the central sill shaped steel 3-1 of shaped steel assembly 3 ends; Be provided with limiting plate 2-2 in the said spacing case 2-1; And the bottom at central sill shaped steel 3-1 is provided with fixation clip 2-5, and said spacing band 2-4 passes fixation clip 2-5 and is fixed on the limiting plate 2-2.
Embodiment 6 and embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5 are similar; Its difference is: optimized displacement control system 4 further; Said displacement control system 4 comprises displacement case 4-1, polyurethane shear spring 4-2, spring fixed seat 4-3 and spring coupling plate 4-4; Said moving on the central sill shaped steel 3-1 that case 4-1 is fixed in shaped steel assembly 3 ends; Said spring coupling plate 4-4 links together two adjacent central sill shaped steel 3-1 through polyurethane shear spring 4-2, and said spring coupling plate 4-4 middle part is fixedly connected with central sill shaped steel 3-1 through spring fixed seat 4-3.
In the foregoing description, it compresses bearing, pressure-bearing bearing and all can adopt polyurethane to process.
The super large displacement bridge extension joint of the utility model, the foregoing description can be implemented separately also can select as required to implement, can certainly all combine to implement,
The super large displacement bridge extension joint of the utility model, simple in structure, easy and simple to handle, safe and reliable, with low cost, utilization is worthy to be popularized; The super large displacement bridge extension joint of the utility model, bearing safety is reliable, displacement control is even, and travel safety is high.
The super large displacement bridge extension joint of the utility model, its technical characterstic is following:
1, supporting capacity significantly improves, and carries safety and reliability.
(1) central sill shaped steel adopts 90 * 130 to replace existingly 80 * 120, and bearing capacity is stronger.
(2) being connected of T type frame and central sill shaped steel connected by original bolt and to change welding into, avoids central sill boring too much, the phenomenon that causes stress to concentrate.
(3) compressing bearing, pressure-bearing bearing, to have adopted polyurethane be raw material, has the superiority that General Purpose Rubber is difficult to reach aspect absorbing, supporting capacity, anti-environmental aging and the stress relaxation.
(4) hanger bolt (it is fast to add the weldering wedge shape), T type frame have been selected for use and have been adopted 30 ° of wedge shape checknuts or Tang Shi Bolt Connection, and anti-loosing effect is good.
(5) the suspension bracket place has taked cross spacing to crossbeam, (the Traditional use supporting is spacing).
2, the control of stretching device displacement system is reliable, effective, stitches wide good uniformity.
(1) the displacement control system arrangement rationally, effectively, elastic displacement control element quantity increases to movable end from the stretching device fixed end successively.
(2) core parts-shear spring has adopted the polyurethane rubber shear spring to adopt polyurethane to replace General Purpose Rubber in the displacement control system, and preceding shear force increases, the endurance type is strong.
(3) adopted stopping means, displacement control dual fail-safe effect.
3, can satisfy the demand of bridge lateral, vertical corner reciprocal fully.
(1) the supported box place has adopted the novel ball bearing, can the fine displacement requirement of satisfying bridge.
(2) compressing bearing, pressure-bearing bearing, to have adopted polyurethane be raw-material novel bearing.
4, the skidproof effect of excellence:
(1) central sill shaped steel end face digs has anti-slip tank.
(2) the compression apparatus upper surface is coated with special antiskid layer is housed.
The stretching device upper surface is at ball blast---and after the application, be coated with last layer epoxy resin, spray one deck corundum sand mud again, thereby strengthen stretching device shaped steel skin-friction coefficient greatly, further improve the anti-slide performance of device.
5, width of cloth joint good water-proof effect about.
About width of cloth joint be provided with buttcover plate.
The super large displacement bridge extension joint of the utility model; The big displacement stretching device of straight beam formula is provided with a suitable bridge to beam arranged in each supported box; All central sills all are supported on the same crossbeam, and the two is square crossing each other, compact conformation; Reduce the displacement case to greatest extent and supported the box structure size, also reached the purpose that reduces the stretching device overall weight.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (9)
1. super large displacement bridge extension joint; Comprise supporting system (1) and shaped steel assembly (3) that mutual square crossing is arranged; Said supporting system (1) rides over the Liang Tishang of bridge both sides sidelong along cross-bridges; The bottom of said shaped steel assembly (3) is provided with caging system (2); Said shaped steel assembly (3) is provided with displacement control system (4) and anchor system (5); It is characterized in that: said shaped steel assembly (3) comprises some central sill shaped steel (3-1), and said supporting system (1) comprises supporting suspension bracket (1-2), connects through 30 ° of wedge shape checknut duplicate invoices between said central sill shaped steel (3-1) and supporting suspension bracket (1-2) or passes through the Tang Shi Bolt Connection.
2. super large displacement bridge extension joint as claimed in claim 1; It is characterized in that: said supporting suspension bracket (1-2) is shape of the mouth as one speaks integral sealing structure; And supporting suspension bracket (1-2) is placed in outside the bearing cross beam (1-3), is provided with limit base at the side that supports suspension bracket (1-2).
3. according to claim 1 or claim 2 super large displacement bridge extension joint, it is characterized in that: be provided with waterproof sealing adhesive tape (3-2) between the two adjacent central sill shaped steel (3-1), said central sill shaped steel (3-1) end face is processed with antiskid groove.
4. super large displacement bridge extension joint as claimed in claim 3; It is characterized in that: said supporting system (1) comprises fixed end supported box (1-1), supporting suspension bracket (1-2), bearing cross beam (1-3) and movable end supported box (1-7); Said fixed end supported box (1-1) and movable end supported box (1-7) are separately fixed at the Liang Tishang of bridge both sides; Connect through bearing cross beam (1-3) in two supported boxs, said bearing cross beam (1-3) through pressure-bearing bearing (1-4) with compress bearing (1-5) and be connected with central sill shaped steel (3-1) elasticity.
5. super large displacement bridge extension joint as claimed in claim 4; It is characterized in that: an end of said bearing cross beam is fixed in the fixed end supported box (1-1); The other end can relatively move in movable end supported box (1-7); Be provided with spherical bearing (1-6) between said bearing cross beam (1-3) and fixed end supported box (1-1) and the movable end supported box (1-7) and compress bearing (1-5), be provided with pressure-bearing bearing (1-4) between said supporting suspension bracket (1-2) and the bearing cross beam and compress bearing (1-5).
6. super large displacement bridge extension joint as claimed in claim 5; It is characterized in that: the outer wall of said bearing cross beam is provided with corrosion resistant plate; Said spherical bearing (1-6) and elastomeric bearing are provided with tetrafluoro slide plate or wearing plate with the junction of bearing cross beam, and tetrafluoro slide plate or wearing plate and corrosion resistant plate fit tightly.
7. like each described super large displacement bridge extension joint in the claim 4 to 6; It is characterized in that: said caging system (2) comprises spacing case (2-1), limiting plate (2-2), spacing band holder (2-3), spacing band (2-4) and fixation clip (2-5); Said spacing case (2-1) is fixed on the central sill shaped steel (3-1) of shaped steel assembly (3) end; Be provided with limiting plate (2-2) in the said spacing case (2-1); And be provided with fixation clip (2-5) in the bottom of central sill shaped steel (3-1), said spacing band (2-4) passes fixation clip (2-5) and is fixed on the limiting plate (2-2).
8. like each described super large displacement bridge extension joint in the claim 4 to 6; It is characterized in that: said displacement control system (4) comprises displacement case (4-1), polyurethane shear spring (4-2), spring fixed seat (4-3) and spring coupling plate (4-4); Said moving on the central sill shaped steel (3-1) that case (4-1) is fixed in shaped steel assembly (3) end; Said spring coupling plate (4-4) links together two adjacent central sill shaped steel (3-1) through polyurethane shear spring (4-2); Said spring coupling plate (4-4) middle part is fixedly connected with central sill shaped steel (3-1) through spring fixed seat (4-3), and the quantity of polyurethane shear spring (4-2) increases to movable end from the stretching device fixed end successively.
9. like each described super large displacement bridge extension joint in the claim 5 to 6, it is characterized in that: said pressure-bearing bearing (1-4) and compress bearing (1-5) and adopt polyurethane to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205276077U CN202430628U (en) | 2011-12-16 | 2011-12-16 | Ultra-large displacement bridge telescopic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205276077U CN202430628U (en) | 2011-12-16 | 2011-12-16 | Ultra-large displacement bridge telescopic device |
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| Publication Number | Publication Date |
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| CN202430628U true CN202430628U (en) | 2012-09-12 |
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| CN2011205276077U Withdrawn - After Issue CN202430628U (en) | 2011-12-16 | 2011-12-16 | Ultra-large displacement bridge telescopic device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518037A (en) * | 2011-12-16 | 2012-06-27 | 成都市新筑路桥机械股份有限公司 | Expansion device for extra-large displacement bridge |
| CN103669203A (en) * | 2013-12-31 | 2014-03-26 | 衡水宝力工程橡胶有限公司 | Modular-pattern comb plate stretching and contracting device |
| CN103711074A (en) * | 2013-12-31 | 2014-04-09 | 成都市新筑路桥机械股份有限公司 | Gapless-type large-displacement highway foot-bridge expansion device |
| CN108660919A (en) * | 2018-07-05 | 2018-10-16 | 衡水中铁建工程橡胶有限责任公司 | A kind of heavy type twin beams modulus bridge expansion device |
| CN110241718A (en) * | 2019-07-23 | 2019-09-17 | 四川路安路桥科技有限公司 | A kind of modularization modular expansion device |
-
2011
- 2011-12-16 CN CN2011205276077U patent/CN202430628U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518037A (en) * | 2011-12-16 | 2012-06-27 | 成都市新筑路桥机械股份有限公司 | Expansion device for extra-large displacement bridge |
| CN102518037B (en) * | 2011-12-16 | 2014-02-12 | 成都市新筑路桥机械股份有限公司 | Expansion device for extra-large displacement bridge |
| CN103669203A (en) * | 2013-12-31 | 2014-03-26 | 衡水宝力工程橡胶有限公司 | Modular-pattern comb plate stretching and contracting device |
| CN103711074A (en) * | 2013-12-31 | 2014-04-09 | 成都市新筑路桥机械股份有限公司 | Gapless-type large-displacement highway foot-bridge expansion device |
| CN103711074B (en) * | 2013-12-31 | 2015-05-20 | 成都市新筑路桥机械股份有限公司 | Gapless-type large-displacement highway foot-bridge expansion device |
| CN103669203B (en) * | 2013-12-31 | 2016-02-24 | 衡水宝力工程橡胶有限公司 | A kind of modulus type comb plate stretching device |
| CN108660919A (en) * | 2018-07-05 | 2018-10-16 | 衡水中铁建工程橡胶有限责任公司 | A kind of heavy type twin beams modulus bridge expansion device |
| CN108660919B (en) * | 2018-07-05 | 2023-08-25 | 中裕铁信交通科技股份有限公司 | Heavy double-beam modular bridge expansion device |
| CN110241718A (en) * | 2019-07-23 | 2019-09-17 | 四川路安路桥科技有限公司 | A kind of modularization modular expansion device |
| CN110241718B (en) * | 2019-07-23 | 2021-10-26 | 四川路安路桥科技有限公司 | Modular modulus type telescopic device |
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