CN100595386C - Sedimentation support for bridge - Google Patents
Sedimentation support for bridge Download PDFInfo
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- CN100595386C CN100595386C CN200810015613A CN200810015613A CN100595386C CN 100595386 C CN100595386 C CN 100595386C CN 200810015613 A CN200810015613 A CN 200810015613A CN 200810015613 A CN200810015613 A CN 200810015613A CN 100595386 C CN100595386 C CN 100595386C
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Abstract
The invention relates to a bridge settlement support, which comprises a product support, further comprises an upper settlement compression device which is located on the bottom portion of the productsupport, the device comprises an upper settlement body and a lower bottom basin, the upper settlement body comprises a top plate, an inner support plate and a middle carrier plate, the top plate is located at the lever direction, the middle carrier plate is fixed on the lower portion of the top plate and is parallel to the top plate through the inner support plate, the middle carrier plate is equipped with a plurality of rheological channels, the inner support plate comprises a ring plate and a baffle which is fixed in the ring plate to form a plurality of cavities, and the upper portion of the ring plate is equipped with a plurality of vent holes. The lower bottom basin comprises a bottom plate and an outer support plate which is fixed on the upper portion of the bottom plate, an overfloworifice is arranged between the bottom plate and the outer support plate, the outer support plate is a ring cylinder which is tightly sleeved on the outer side of the inner support plate, an electricheating disk is laid on the bottom plate, and a compression body is filled between the electric heating disk and the middle carrier plate. The bridge settlement support has the beneficial effects that the disease of bumping at bridge-head is effectively eliminated through that the self settlement drives the floor elevation reduce.
Description
(1) technical field
The present invention relates to sedimentation (compression) device, specifically being a kind of energy drives that the bridge floor absolute altitude reduces and the sedimentation support for bridge of effectively eliminating " bumping at bridge-head " disease by self sedimentation.
(2) background technology
At present, no matter the bridge pad of which kind of structure types has only following three kinds of functions: the one, bear vertical load; Two can adapt to the rotation of beam body; Three can satisfy the horizontal movement of superstructure.The bearing support pinner is the reinforced concrete cast-in-situ member, has only spacing, measuring body effect.Therefore, existing bridge pad, bearing pad stone all do not possess the function of self sedimentation (compression), and the sedimentation that can not satisfy by bridge pad and supporting construction reduces adjustment bridge floor absolute altitude, to reach the needs of elimination " bumping at bridge-head " disease.So-called " bumping at bridge-head ", the i.e. vehicle that causes of the bridge floor that forms because of sedimentation is different between bridge (culvert) works and the roadbed and the discrepancy in elevation between the road surface (faulting of slab ends) phenomenon of jolting.The appearance of this common disease has seriously reduced the surface evenness index request, has destroyed road surface global design line style, has lost the smooth and easy and comfortable key property of riding of the due driving of highway, has brought many unsafe factors.At present, the unique method that domestic highway maintenance department is disposed this disease is " method is subsidized on the road surface ", promptly carry out so-called " oil reservoir thickening ", to reach the discrepancy in elevation of raising between grade elevation, balance and the works, the purpose of slowing down or eliminate " bumping at bridge-head " disease by top course to the sedimentation roadbed.The maximum drawback of this method of disposal is:
1. in the time will recovering road surface global design line style and roughness index, need that the road surface part beyond the end of the bridge discrepancy in elevation (faulting of slab ends) position is carried out large-area oil reservoir and subsidize and raise, cause intact road surface and meaningless reparation has strengthened engineering quantity, increase the maintenance cost, formed serious waste.
Outside taking end of the bridge in the short-range road surface oil reservoir subsidize when raising, can only play the effect of Shunping County, local gentle slope, though saved cost, poor processing effect, can't satisfy the driving needed surface evenness index.
3. bituminous mixture construction, complex procedures, seasonal strong, the cost height pollutes greatly, and supporting machinery is many, and duty cycle is long." four liang of moving stoves of the pig iron ", serious waste of resources does not meet the pavement disease punishment requirement of " effective, advanced, the economy in time, " of " highway maintenance technical specification " regulation.
(3) summary of the invention
The present invention is in order to remedy the deficiencies in the prior art, provides a kind of energy to drive that the bridge floor absolute altitude reduces and the sedimentation support for bridge of effectively eliminating " bumping at bridge-head " disease by self sedimentation.
The present invention is achieved through the following technical solutions:
Sedimentation support for bridge of the present invention comprises the finished product bearing, and its special character is: also comprise the bottom sedimentation compression set that is positioned at the finished product rest base, this device is made of top sedimentation body and lower bottom basin; Sedimentation body in top is made up of top board, interior gripper shoe, middle board, top board is positioned at horizontal direction, middle board is fixed on top board below and parallel with top board by interior gripper shoe, middle board is provided with several rheology passages, interior gripper shoe comprises annular slab and is fixed on the interior dividing plate of annular slab, constitute several cavitys, annular slab top is provided with several air vents; The lower bottom basin is made up of base plate and the external support board that is fixed on base plate top, be provided with spout hole between the two, external support board is laid with electric heating plate for the circular cylinder in the gripper shoe outside in closely being socketed on the base plate, be filled with compression body between electric heating plate and the middle board.
Sedimentation support for bridge of the present invention, edge, the left and right sides, top board top is provided with the lateral confinement piece of location and protection finished product bearing.
Sedimentation support for bridge of the present invention is provided with the demountable rubber protective jacket between top board, interior supporting steel plate, the outer supporting steel plate three.
Sedimentation support for bridge of the present invention, the compression body material adopts the improved elastic material.
Sedimentation support for bridge of the present invention, the annular slab bottom is provided with sealing ring near outward flange.
The invention has the beneficial effects as follows, will dispose traditional " method of raising is subsidized on the road surface " innovation of " bumping at bridge-head " disease, in the part, need not fill up a large amount of bituminous mixtures, more need not enlarge the road surface and dispose area to local Disease Processing for " reducing bridge floor absolute altitude method ".When particularly stretching device or stretching device not being set being designed to bridge (culvert) works of filled-type and micro-seam formula at great majority, its method of disposal is more easy.Only the end of the bridge discrepancy in elevation is eliminated the road surface part of parados top, back protuberance, adopted the local milling leveling of milling machine to get final product.Convenient, fast, safe, effective, economy, environmental protection, energy-conservation, reduce discharging.It is timely that this method is recovered the surface evenness index, it is obvious to reduce ride down effects, and potential safety hazard is disposed rapidly, and " freely, peace, green, U.S. " ensures effectively, its economic benefit and obvious social benefit are a kind of elder generation of disease and then the effective measures of handling " bumping at bridge-head ".
Following advantage is specifically arranged:
1. (as Fig. 2) design height was greater than 100mm after sedimentation was installed in this sedimentation (compression), the regulation that meets JT/T4-2004 " highway bridge laminated rubber bearing " 8.2.1 bar " the laminated rubber bearing installation place should be provided with bearing pad stone; it highly should be more than the 100mm, and should consider to be convenient to the replacing of bearing ".
2, the bridge pad bearing pad stone is a steel work by traditional reinforced concrete structure innovation, it is machining in the factory that molding mode is built innovation by traditional field condition, not only simplified the bearing pad stone construction sequence, and guaranteed to pinner architecture quality and the control of every technical indicator.Meet the international trend that the bridge member batch production is produced.
3, this device can use with any type of market finished product bearing coupling, is particularly useful for range of application laminated rubber bearing more widely.Sedimentation support after the combination does not influence range of application, functional performance, stress and the erection procedure of former finished product bearing, is convenient to the replacing of bearing.
4, this apparatus structure is simple, and is cheap, and the raw material source is abundant, is convenient to batch production processing, forms a complete production network into the bulk settling bearing, and market prospects are more wide.
5, this device simple installation, in place rapidly, adopt the firm or pre-embedded bolt anchoring of epoxy resin cement mortar all can, sturdy and durable, promote easily.
6, the improved elastic material in the end basin than having pliability and higher softening point and compressive strength in the large-temperature range, has the effect of damping once more, shock insulation to bridge superstructure.Be solid-state under the improved elastic material normal temperature, rheological phenomena appears during greater than 82 ℃ in temperature, by energising heat time heating time and watt level can effectively controlling its settling height and compression speed, satisfies in the actual engineering needs of sedimentation stage by stage.
7, power supply adopts portable common generating set, and is easy to use, is easy to be equipped with.
8, improved elastic material flowing deformation and transfer velocity are even, and under prerequisite stressed on an equal basis, all amount heating, the synchronous sedimentation of each beam body bearing is balanced consistent.Guarantee the whole stable landing of bridge superstructure, guaranteed to bridge superstructure safety.
(4) description of drawings
Fig. 1 is sedimentation compression pre-structure schematic diagram of the present invention.Fig. 2 is sedimentation compression of the present invention back structural representation.Fig. 3 is a heating plate I-I sectional schematic diagram.Fig. 4 is a rheology passage II-II sectional schematic diagram.
Among the figure, 1 top board, gripper shoes in 2, board in 3,4 rheology passages, 5 air vents, 6 sealing rings, 7 elastometric boots, 8 lateral confinement pieces, 9 base plates, 10 external support boards, 11 spout holes, 12 compression body, 13 heating plates, 14 finished product bearings.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
Sedimentation support for bridge of the present invention comprises finished product bearing 14 and is positioned at the bottom sedimentation compression set that the finished product rest base substitutes the bearing support pinner that this device comprises top sedimentation body and lower bottom basin; Sedimentation body in top is made up of top board 1, interior gripper shoe 2, middle board 3, top board is positioned at horizontal direction, edge, the left and right sides, top board top is provided with the lateral confinement piece 8 of 2 location and protection finished product bearing, middle board is fixed on top board below and parallel with top board by interior gripper shoe, be provided with four cavitys between two parallel-plates, middle board is for circle and be provided with 8 rheology passages 4, interior gripper shoe comprises the annular plate and is fixed on the interior cross dividing plate of annular plate, the corresponding re-entrant portion in annular plate top is provided with four air vents 5, and annular plate bottom is provided with steel sealing ring 6 near outward flange; The lower bottom basin is made up of base plate 9 and the external support board 10 that is fixed on base plate top, be provided with spout hole 11 between the two, external support board is laid with electric heating plate 13 for the ring-shape cylinder interal in the gripper shoe outside in closely being socketed on the base plate, be filled with compression body 12 between electric heating plate and the middle board.Be provided with elastometric boot 7 between top board, interior supporting steel plate, the outer supporting steel plate three.The compression body material adopts the improved elastic material, and it is mixed with an amount of filler by the multiple high molecular polymer based on modified bitumen, rubber, plastics etc., is existing product.
Sedimentation support for bridge of the present invention, top sedimentation body and lower bottom basin constitute support settlement (compression) device, and all the other adopt steel to make to this device except that compression body and elastometric boot.Be four cavitys between top board and the middle board, and supporting steel plate in middle board and the part is set and is sealed in the end basin.The compression body material is solid-state not only to have the ability of transmitting the upper vertical load down, and shock insulation, damping and anticorrosion function are arranged.The improved elastic material that adds an amount of filler, not only have the favorable mechanical performance, and elastomeric material have higher pliability and softening point through after the special modification, guarantee rheology does not take place under the outside temperature, satisfy the structure stress needs under the different weather conditions.The compression body design height is greater than the upper design settling amount; The material volume that rheology is shifted in the compression body is less than the cavity volume in the top sedimentation body.
Sedimentation support for bridge of the present invention, when keeping former finished product bearing range of application, functional performance, stress and erection procedure, with an alternative existing bridge pad bearing pad stone of sedimentation supporting arrangement that has sedimentation (compression) function and satisfy the compressive strength requirement, this sedimentation device possesses following three kinds of functions.The one, have the resistance to compression function of existing bearing pad stone; The 2nd, have spacing and protective action to the finished product bearing; The 3rd, but self sedimentation (compression) function had.The needs of " bumping at bridge-head " disease are eliminated in the reduction that drives the bridge floor absolute altitude with the final sedimentation of satisfying by this device.The stack combinations of this sedimentation (compression) device and top finished product bearing forms more complete bridge pad, supporting construction---the sedimentation support with science of function of use.Adopt the present invention to adjust the bridge floor absolute altitude, reduce the discrepancy in elevation between bridge (culvert) works and end of the bridge roadbed (road surface), reach the purpose of eliminating or slowing down " bumping at bridge-head " disease by reducing.
Its operating principle is as follows:
As shown in Figure 1: this sedimentation (compression) device sedimentation pre-structure design height is c+2d+h.In the formula: c is an outer supporting steel plate height (mm); D is top, base plate thickness (mm); H is designed amount of precipitation (mm).When c+2d 〉=100mm, h design 〉=35mm.
Before the sedimentation, as shown in Figure 1, at first remove elastometric boot 7, connect power supply and starter-generator equipment, heating plate 13 (as Fig. 3) energising heating, 12 preheatings of improved elastic material also heat up.When improved elastic material 12 temperature surpassed softening point, improved elastic material 12 was by the solid-state rheology state that crossfades into, and supporting capacity begins to descend.Along with the prolongation of heat time heating time, improved elastic material 12 begins compressive strain under the effect of middle board 3 pressure.Because the plugging action of the airtight and spout hole 11 of sealing ring 6, come from superstructure and continuingly act on the vertical load on the bearing 14 in the lateral confinement piece 8, the higher internal pressure stress that made improved elastic material 12 accumulated inside, and the setting of sedimentation body air vent 5 provides a condition that compressive stress discharges to the improved elastic material 12 under the high pressure.So improved elastic material 12 will be slowly by in the mobile cavity of transferring in the top sedimentation body of the rheology passage 4 (as Fig. 4) in the middle board 3.Along with the loss of improved elastic material 12 in the end basin reduces, top board 1, interior supporting steel plate 2, middle board 3 slowly move down integral body under the effect of upper load pressure, to 10 of outer supporting steel plates withstand top board 1 butt joint closure stressed till.Can discharge adjusting by spout hole 11 to influencing the unnecessary compression material of structure sediment butt joint.So far, the designed amount of precipitation h disappearance (as Fig. 2) in this sedimentation (compression) device.This sedimentation device has been finished the process of Fig. 1 to functional shift shown in Figure 2.One independently the bearing support pinner will form.Its supporting construction will be formed (as shown in Figure 2) by top board, inside and outside supporting steel plate and base plate.
As shown in Figure 2: after settling amount h disappears, this invention will convert the bearing support pinner structure (as Fig. 2) of a tool resistance to compression supporting role from a stress system (as Fig. 1) with supporting, sedimentation (compression) function to, and this supporting construction will be made up of top board 1, interior supporting steel plate 2, outer supporting steel plate 10 and base plate 9.Structure design height after the sedimentation is c+2d 〉=100mm, and the designed amount of precipitation during production is decided factually.
As shown in Figure 3: lay electric heating plate 13 outside on supporting steel plate 10 internal backplane 9, the resistance wire of different capacity is set in heating plate 13 inside, and the exit of resistance wire positive and negative electrode and spout hole 11 adopt special Luo cap protection.
As shown in Figure 4: middle board 3 and interior supporting steel plate 2 are all one, and are wrapped airtight by outer supporting steel plate 10.Be symmetrical arranged compression body rheology passage 4 on the middle board 3, four cavitys of middle board 3 upper design, bottom and improved elastic material pressure-bearing are joined.
The present invention is in installing and using process, and the engineers and technicians in the present technique field are easy to implement.
Claims (5)
1. a sedimentation support for bridge comprises finished product bearing (14), it is characterized in that: also comprise the bottom sedimentation compression set that is positioned at the finished product rest base, this device is made of top sedimentation body and lower bottom basin; Sedimentation body in top is made up of top board (1), interior gripper shoe (2), middle board (3), top board is positioned at horizontal direction, middle board is fixed on top board below and parallel with top board by interior gripper shoe, middle board is provided with several rheology passages (4), interior gripper shoe comprises annular slab and is fixed on the interior dividing plate of annular slab, constitute several cavitys, annular slab top is provided with several air vents (5); The lower bottom basin is made up of base plate (9) and the external support board (10) that is fixed on base plate top, be provided with spout hole (11) between the two, external support board is the circular cylinder in the gripper shoe outside in closely being socketed in, be laid with electric heating plate (13) on the base plate, be filled with compression body (12) between electric heating plate and the middle board.
2. sedimentation support for bridge according to claim 1 is characterized in that: edge, the left and right sides, top board (1) top is provided with the lateral confinement piece (8) of location and protection finished product bearing.
3. sedimentation support for bridge according to claim 1 and 2 is characterized in that: be provided with demountable rubber protective jacket (7) between top board, interior supporting steel plate, the outer supporting steel plate three.
4. sedimentation support for bridge according to claim 1 and 2 is characterized in that: the compression body material adopts the improved elastic material.
5. sedimentation support for bridge according to claim 1 and 2 is characterized in that: the annular slab bottom is provided with sealing ring (6) near outward flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810015613A CN100595386C (en) | 2008-03-28 | 2008-03-28 | Sedimentation support for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810015613A CN100595386C (en) | 2008-03-28 | 2008-03-28 | Sedimentation support for bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101250850A CN101250850A (en) | 2008-08-27 |
| CN100595386C true CN100595386C (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810015613A Expired - Fee Related CN100595386C (en) | 2008-03-28 | 2008-03-28 | Sedimentation support for bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892635A (en) * | 2010-08-11 | 2010-11-24 | 中交第四航务工程局有限公司 | Method for solving problem of vehicle bump at bridge head and structure thereof |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261037B (en) * | 2011-05-06 | 2012-11-28 | 新津腾中筑路机械有限公司 | Vertical elastic tension compression support |
| CN102433845B (en) * | 2011-12-29 | 2013-12-04 | 广东冠粤路桥有限公司 | Novel temporary solidification system used for continuous beam cantilever construction |
| CN102518046B (en) * | 2011-12-29 | 2014-05-21 | 广东冠粤路桥有限公司 | Method for eliminating secondary internal force of sinking of support saddle of continuous beam during cantilever construction |
| CN108678182A (en) * | 2018-04-17 | 2018-10-19 | 中国二十冶集团有限公司 | A kind of sedimentation adjusting sliding support |
| CN111082351B (en) * | 2019-11-29 | 2021-12-28 | 北京中科中电电力工程管理有限公司 | Installation process and equipment of high-voltage switch cabinet |
| CN112942083A (en) * | 2021-01-28 | 2021-06-11 | 吴敏 | Anti-seismic bridge support |
| CN112942082A (en) * | 2021-01-28 | 2021-06-11 | 吴敏 | Bridge settlement protection support |
-
2008
- 2008-03-28 CN CN200810015613A patent/CN100595386C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892635A (en) * | 2010-08-11 | 2010-11-24 | 中交第四航务工程局有限公司 | Method for solving problem of vehicle bump at bridge head and structure thereof |
| CN101892635B (en) * | 2010-08-11 | 2012-02-29 | 中交第四航务工程局有限公司 | Method for solving problem of vehicle bump at bridge head and structure thereof |
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| Publication number | Publication date |
|---|---|
| CN101250850A (en) | 2008-08-27 |
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Granted publication date: 20100324 Termination date: 20130328 |