CN106906738B - A kind of pot bearing and its replacing options - Google Patents

Abstract

The invention discloses a kind of pot bearing and its replacing options, including upper bracket plate and basin seat, basin core is provided between upper bracket plate and basin seat, upper bracket plate is welded with stainless steel plate towards basin seat side, stainless steel plate is provided with polytetrafluoroethylene ethylene layer towards basin seat end, upper bracket plate upper end and basin seat bottom are welded with fixed plate, upper bracket plate and basin seat are fixed in the middle part of fixed plate, fixed plate one end is provided with conflict slot, hole and removal hole are contradicted far from opening is arranged in the middle part of fixed plate, contradict the fixed link being equipped at the trench bottom of slot and the notch of disassembly slot for being fixed on fixed plate on bridge or bridge pier, the depth of slot is dismantled not less than the sum of the depth and the diameter of fixed link for contradicting slot, its key points of the technical solution are that replace by using what the pot bearing can be convenient, it does not need to remove steel plate and cement when replacement, reduce The use of cement, low-carbon environment-friendly, green non-pollution economize on resources, and replacement is simple and convenient, and renewal cost is low.

Description

A kind of pot bearing and its replacing options

Technical field

The present invention relates to bridge field, in particular to a kind of pot bearing and its replacing options.

Background technique

With the development of the city, urban transporting system gradually three-dimensional；In recent years, grade separation cross-line crossing bridge increases year by year Add, while facilitating citizens' activities, slowing down traffic congestion, also brings some problems in bridge maintaining maintenance, at present city For city's bridge due to service life, volume of traffic overload operation etc., bridge pad aging, damage phenomenon are increasingly prominent.

China Patent Publication No. is that the patent of CN204435216U discloses a kind of basin-shaped seating of antidetonation, including upper branch Seat board, pot base and the tetrafluoride material plate being once arranged from top to bottom between upper bracket plate and pot base, basin core, frictional damping Secondary and pressure-bearing rubber plate, upper bracket plate is contacted with bridge when work, and pot base is contacted with bridge pier, is played by the deformation of basin core Shock insulation, damping purpose, pot bearing is easily damaged in use, it is therefore desirable to changing pot bearing, but existing benzvalene form It needs to remove just and can be carried out replacement the screw of fixing pot type supporting seat and steel plate and cement completely when bearing replacement, so construction It is costly, and cement is wasted, it is complicated when replacement.

Summary of the invention

In view of the deficienciess of the prior art, the first purpose of this invention is to provide a kind of pot bearing, the benzvalene form Support is simple and convenient in replacement, and operating expenses is low when replacement.

Above-mentioned first technical purpose of the invention has the technical scheme that a kind of pot bearing, Including upper bracket plate and basin seat, basin core is provided between the upper bracket plate and basin seat, the upper bracket plate is welded towards basin seat side It is connected to stainless steel plate, the stainless steel plate is provided with polytetrafluoroethylene ethylene layer, the upper bracket plate upper end and basin seat towards basin seat end Bottom is welded with fixed plate, and the upper bracket plate and basin seat are fixed in the middle part of fixed plate, described fixed plate one end be provided with to Slot is touched, the other end is provided with disassembly slot, the conflict slot and disassembly slot and is arranged far from being open in the middle part of fixed plate, the conflict slot Trench bottom and dismantle and be equipped with fixed link for being fixed on fixed plate on bridge or bridge pier at the notch of slot, it is described The depth of slot is dismantled not less than the sum of the depth and the diameter of fixed link for contradicting slot.

Through the above technical solutions, using when need for upper bracket plate and basin seat to be separately fixed on bridge and bridge pier, lead to It crosses and is provided with fixed plate in upper bracket plate and bridge pier, can be convenient upper bracket plate and fixed with basin seat, is provided in fixed plate Slot and disassembly slot are contradicted, does not need to fix when can easily dismantle when disassembly, while dismantle by disassembly slot and conflict slot Bar is dismantled from bridge pier and bridge, and fixed link can reuse in use, save replacement cost, saves part money Source, while simplifying replacement step, when replacement, are simple to operate.

Preferably, the disassembly slot is provided with towards fixed plate central side for tearing open with what the fixed link in disassembly slot contradicted Unload block.

Through the above technical solutions, in order to effectively prevent the horizontal sliding in use of pot bearing ontology, in disassembly slot court Fixed plate central side is provided with disassembly block, dismantling block in use will mutually contradict between fixed link, can make in this way Fixed plate is not easy to generate relative motion between fixed link in use, and pot bearing is stable and firm in use.

Preferably, the cambered surface for being bonded with fixed link surface is provided on the disassembly block, the disassembly block passes through spiral shell Bolt is detachably secured in fixed plate.

Through the above technical solutions, in order to enable fiting effect is more preferable between fixed link and disassembly block, and also to have Effect prevents from making when active force is larger between fixed link and disassembly block generating deformation between fixed link or disassembly block, in disassembly block On be provided with cambered surface, the contact area between disassembly block and fixed link is larger in this way, so that the pressure between disassembly block and fixed link It is strong smaller, mutual deformation between disassembly block and fixed link is prevented to a certain extent, so that between fixed link and disassembly block always It contradicts, such pot bearing is not susceptible to slide in use, support and good damping effect.

Preferably, it is provided with screw thread in the fixed link, pressing plate, the pressing plate welding are threaded in the fixed link In fixed plate.

Through the above technical solutions, in order to enable fixed plate is secured firmly on bridge or bridge pier by fixed link, solid It is provided with screw thread in fixed pole, while being threaded with pressing plate in fixed link, in use, fixed link one end embedment bridge and bridge pier In, the other end passes through fixed plate, pressing plate is screwed in the one end for passing through fixed plate later, when pressing plate is firmly contradicted with fixed plate, Pressing plate and fixed link are welded together by welding gun, in use in this way, fixed plate will be firmly pressed on bridge and bridge pier On.

Preferably, the basin seat and basin core contact surface are hemisphere face, and the basin core includes the rubber of interlaced setting Layer and metal lath layer.

Through the above technical solutions, setting mutual for basin core to increase the resistance to compression in use of basin core and cushioning ability Staggered metal lath layer and rubber layer can make rubber be not easy to split in use, increase by metal lath in this way The service life of basin core, simultaneously as the contact surface of basin seat and basin core is hemisphere face, so basin core can be uniform when receiving pressure Be applied in basin seat, while thicker in the middle part of basin core can play stronger antihunt action.

Preferably, the metal lath layer be with basin seat bottom surface hemisphere face diameter one to hemispherical net.

Through the above technical solutions, in order to enable metal lath can also play the purpose of antidetonation in use, by metal Seine is arranged to hemispherical net, and in this way when metal lath receives pressure, metal lath will deformation occurs, so that metal lath Tend to be planar, while the active force that metal lath is needed in deformation is larger, entire basin core can be made to reach in use Preferable damping effect.

Preferably, several hemispheric grooves are provided on the basin seat and basin core contact surface, are provided on the basin core It is several with hemispherical groove one to protrusion.

Through the above technical solutions, in order to enable basin core can be uniformly applied in basin seat when being under pressure, in basin seat Bottom is provided with several hemispheric grooves, and the protrusion with hemispherical groove cooperation is equally provided on basin core, is increased in this way Contact area between basin core and basin seat, reduces the pressure between basin core and basin seat, basin core is not easy to be crushed in stress It splits, while basin core uniform force, good damping effect.

Preferably, the rubber layer of metal lath layer two sides is linked together by the mesh of metal lath.

Through the above technical solutions, adjacent two layers rubber layer is led in order to enable entire basin core is not easy delamination in use The mesh crossed on metal lath links together, and thus metal lath layer can be made firmly to link together with rubber layer, And it is also not easy mutually to disengage in use.

Second object of the present invention is to provide a kind of replacing options of pot bearing, by this method with changing benzvalene form branch Simple and convenient when seat, operating expenses is low.

Above-mentioned second technical purpose of the invention has the technical scheme that a kind of pot bearing Replacing options, method includes the following steps:

Step 1: setting up bracket, and set up fixed and Mobile ladder stand；

Step 2: setting up jack between bridge pier and bridge；

Step 3: bridge is lifted off from pot bearing by the jack in step 2, so that bridge is detached from benzvalene form branch 1 ~ 2mm of seat；

Step 4: the pressing plate being welded in fixed plate and the disassembly block being fixed in fixed plate are torn open from fixed plate From；

Step 5: entire pot bearing is pushed to disassembly slot end, until fixed link comes out from the opening for contradicting slot；

Step 6: entire pot bearing is rotated 60 ~ 90 degree around disassembly trench bottom, then by entire pot bearing from bridge It is taken out between bridge pier；

Step 7: new pot bearing is put between bridge and bridge pier, and make fixed link insertion disassembly trench bottom, it Rotation pot bearing makes the opening for contradicting slot opposite with fixed link afterwards, when fixed link is opposite at conflict channel opening to conflict Pot bearing is moved at slot end, so that fixed link, which is located at, contradicts trench bottom, disassembly block has been bolted in fixed plate, and make Block must be dismantled and fixed link contradicts, new pressing plate is screwed into fixed link, and pressing plate is bonded with fixed plate, later by pressing plate Weld together with fixed plate, completes replacement；Step 8: split out temporary supporting system, the step of when installation jacks up bridge by Gradually fall after rise.

Through the above technical solutions, using for convenience, the local setting support first constructed in needs is built climb later Then ladder is being needed to set up jack between the bridge and bridge pier that jack up, later slowly jacked up bridge, so that bridge It disengages between beam and pot bearing, then separates pressing plate from fixed link, later dismantle disassembly block from fixed plate, later Entire pot bearing horizontal direction is dismantled in slot and is moved, so that fixed link is from contradicting in slot out, at this moment fixed link is located at disassembly Then pot bearing is rotated 60 ~ 90 degree around disassembly trench bottom by trench bottom, pot bearing will be torn open between bridge and bridge pier later Out, new pot bearing then can be replaced；When the pot bearing more renewed, new pot bearing is put into bridge and bridge Between pier, and make fixed link insertion disassembly trench bottom, rotates pot bearing later and make the opening and fixed link phase that contradict slot It is right, when fixed link with contradict at channel opening relative to when to the mobile pot bearing in slot end is contradicted so that fixed link, which is located at, contradicts slot bottom Portion has been bolted disassembly block in fixed plate, and to dismantle block and fixed link conflict, is screwed into fixed link new Pressing plate, and pressing plate is bonded with fixed plate, pressing plate and fixed plate are welded together later, complete replacement.

In conclusion the present invention having the beneficial effect that by upper bracket plate upper end and basin seat bottom in contrast to the prior art Portion is provided with fixed plate, it may be convenient to and pot bearing is fixed on bridge and bridge pier, while being not easy to loosen after fixing, it can To play stronger cushioning effect, and replace in the pot bearing more renewed simple and convenient, construction cost is low when replacement；Together When in replacement, the cement layer etc. of fixed link and fixed fixed link does not all need to remove, and reduces the use of cement, low-carbon ring It protects, green non-pollution, the time used in the replacement shortened while saving resource.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment one；

Fig. 2 is the half sectional view of embodiment one；

Fig. 3 is the explosive view of embodiment one；

Fig. 4 is the structural schematic diagram of the fixed plate of embodiment one；

Fig. 5 is the structural schematic diagram of metal lath.

Appended drawing reference: 1, upper bracket plate；2, basin seat；3, basin core；4, stainless steel plate；5, polytetrafluoroethylene ethylene layer；6, fixed plate； 7, slot is contradicted；8, slot is dismantled；9, fixed link；10, block is dismantled；11, cambered surface；12, pressing plate；13, metal lath layer；14, rubber layer； 15, groove.

Specific embodiment

Below in conjunction with attached drawing, invention is further described in detail.

This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Embodiment one: as shown in Figure 1, 2, a kind of pot bearing, including upper bracket plate 1 and basin seat 2, upper bracket plate 1 with It is provided with basin core 3 between basin seat 2, is welded with stainless steel plate 4 towards 2 side of basin seat in upper bracket plate 1, while in 4 court of stainless steel plate 2 end of basin seat is provided with polytetrafluoroethylene ethylene layer 5, is welded with fixed plate 6 in 1 upper end of upper bracket plate and 2 bottom of basin seat.

As shown in Figure 3,4,6 one end of fixed plate be provided with contradict slot 7, the other end be provided with disassembly slot 8, disassembly slot 8 with Contradicting slot 7 is open slot, and opening is directed away from 6 middle ends of fixed plate, in the trench bottom and disassembly slot 8 for contradicting slot 7 Fixed link 9 is equipped at notch, wherein disassembly slot 8 depth not less than contradict slot 7 depth and fixed link 9 diameter it With.Disassembly block 10 is fixed with by screw towards 6 central side of fixed plate in disassembly slot 8, one end of disassembly block 10 is supported with fixed link 9 Touching, the other end and upper bracket plate 1 or basin seat 2 contradict, while being provided at disassembly block 10 and 9 conflict of fixed link and fixed link The cambered surface 11 of 9 surfaces fitting, in this way setting can increase fixed link 9 and dismantle the contact area of block 10.

It is provided with screw thread in fixed link 9, pressing plate 12 is threaded in fixed link 9, is supported between 12 fixed plates 6 of pressing plate Touching, in order to enable pressing plate 12 firmly pushes down fixed plate 6, pressing plate 12 is welded in fixed plate 6.

Wherein, basin seat 2 and 3 contact surface of basin core are hemisphere face, while several hemispheric grooves are evenly equipped on hemisphere face 15, while being provided on basin core 3 multiple protrusions cooperated with groove 15, protrusion is just bonded with 15 inner wall of groove when use； Basin core 3 includes the rubber layer 14 and metal lath layer 13 of interlaced setting, as shown in figure 5, metal lath layer 13 and rubber Layer 14 is hemispherical, while several mesh are provided on metal lath layer 13, passes through metal between adjacent two layers rubber layer 14 The mesh of seine layer 13 is attached.

Embodiment two: a kind of replacing options of pot bearing, method includes the following steps:

Step 1: setting up bracket, and set up fixed and Mobile ladder stand；

Step 2: setting up jack between bridge pier and bridge；

Step 3: bridge is lifted off from pot bearing by the jack in step 2, so that bridge is detached from benzvalene form branch 1 ~ 2mm of seat；

Step 4: by the pressing plate 12 being welded in fixed plate 6 and the disassembly block 10 being fixed in fixed plate 6 from fixed plate It is separated on 6；

Step 5: entire pot bearing is pushed to disassembly 8 end of slot, until fixed link 9 goes out from the opening for contradicting slot 7 Come；

Step 6: entire pot bearing is rotated 60 ~ 90 degree around disassembly 8 bottom of slot, then by entire pot bearing from bridge It is taken out between beam and bridge pier；

Step 7: new pot bearing is put between bridge and bridge pier, and make the insertion disassembly of fixed link 98 bottom of slot, Rotation pot bearing makes the opening for contradicting slot 7 and fixed link 9 opposite later, when fixed link 9 is opposite with 7 opening of slot is contradicted It has been bolted in fixed plate 6 to the mobile pot bearing in 7 end of slot is contradicted so that fixed link 9, which is located at, contradicts 7 bottom of slot Dismantle block 10, and to dismantle block 10 and fixed link 9 and contradict, new pressing plate 12 is screwed into fixed link 9, and make pressing plate 12 with Fixed plate 6 is bonded, and later welds together pressing plate 12 and fixed plate 6, completes replacement；

Step 8: the step of splitting out temporary supporting system, installing when jacking up bridge is gradually fallen after rise.

When bridge is passed through jack stand, using to left width integrin synchronization of jacking up mode, disease pot bearing is replaced.? Each pier top of strict control increases poor during jacking, and the identical pier top of direction across bridge answers stringent synchronization, and it is poor to the raising of box beam pier top to indulge bridge Control is within 3mm, can take out old pot bearing as principle；Jack is generally in the symmetrical cloth in bridge pier member pot bearing two sides It sets, and carries out the original planes for occupying bent cap more, reduce the vertical force of how many platform.4 100t are arranged under every beam of the bridge Slim self-locking type hydraulic jack, each support outer arranges two.

When Integral synchronous jacks, synchronization of jacking up special equipment should be utilized, and be uniformly controlled using PLC control system.PLC system Standby position sensor and pressure sensor under unified central planning control top lifting height and top lift, and are equipped with top lifting height limiting device.Top Rising jack should have self-locking device to prevent jacking from falling after rise suddenly in the process；After synchronous jacking system is debugged, first tried Jacking.

Examination jacking is carried out in two steps, and based on the first step is controlled with top lift, top to support calculates 50% or so of counter-force, holds Check within lotus 5-10 minutes the safety of Lifting Equipment, jack falls back to original position after no any exception；Second step is to jack displacement Based on control, preferably beam body is jacked to 1~2mm of former support is detached from, checks that all supports and beam body disengage situation, while measuring beam Body gross weight and each end reaction；Jack should be fallen back into origin-location rapidly after detection, this storage period in stage should be not more than 5 Minute.

Scene sets commander in chief, and all construction passwords are assigned by commander in chief.When formal jacking, using hierarchical loading, according to every The speed order that 3min jacks 1mm carries out, and final stage pressurization value is by the amount control of final jack-up.When practical top lift is close to builder's tonnage It is to slow down jacking speed, and take former pot bearing in jacking process pilot scale by special messenger, when jacking to proper height, pot bearing It is detached from beam bottom, can stop jacking when can remove former pot bearing.Then Auxiliary support is installed, Auxiliary support should can be micro- It adjusts, and uses mechanical caging, prevent from loosening.

During synchronization of jacking up, the relative relief jacked between box beam pier is controlled in 3mm, and maximum top lifting height is 5mm。

To ensure treatment effect and construction quality, in place and after supporting & stablizing, former pot bearing is taken out, more in beam body jacking When changing, disassembly block 10 is dismantled from fixed plate 6, entire pot bearing horizontal direction is dismantled in slot 8 move later, so that fixed Bar 9 is from contradicting in slot 7 out, and at this moment fixed link 9 is located at disassembly 8 bottom of slot, then rotates pot bearing around disassembly 8 bottom of slot 60 ~ 90 degree, pot bearing will be split out between bridge and bridge pier later, and new pot bearing then can be replaced；Replacement When do not need disassembly fixed link 9, do not need joints cement again, replacement cost is high yet.

The support installed on same pier is laterally in alignment, and consistent to the vertical range of platform cap center line, minimum Not less than 5cm；When new pot bearing installation, put as far as possible according to original support position；After new pot bearing installs, top surface Absolute altitude requires consistent with original pot bearing top surface absolute altitude；After new pot bearing installs, upper and lower surface is required and platform crown It is closely connected with fine strain of millet bottom.

After pot bearing is installed, remove temporary supporting system, by beam body according to ought classification step constantly synchronize back It falls, taken when falling beam and jacks identical safeguard.Fall after beam must guarantee all pot bearings contacted with beam body it is closely connected reliably, It is horizontal that pot bearing contacts holding with beam bottom.It is such as unsatisfactory for requiring, it is necessary to re-start jacking and correct, jacking method, step are such as It is described previously.

The above is only exemplary embodiments of the invention, protection scope and is not intended to limit the present invention, of the invention Protection scope is determined by the attached claims.

Claims (9)

1. a kind of pot bearing, including upper bracket plate (1) and basin seat (2), are arranged between the upper bracket plate (1) and basin seat (2) Have basin core (3), the upper bracket plate (1) is welded with stainless steel plate (4) towards basin seat (2) side, and the stainless steel plate (4) is towards basin Seat (2) end is provided with polytetrafluoroethylene ethylene layer (5), it is characterized in that: the upper bracket plate (1) upper end is welded with basin seat (2) bottom Have fixed plate (6), the upper bracket plate (1) and basin seat (2) are fixed in the middle part of fixed plate (6), fixed plate (6) one end setting Have conflict slot (7), the other end is provided with disassembly slot (8), and the conflict slot (7) and disassembly slot (8) separate fixed plate (6) middle part are It is equipped at the notch of opening setting, the trench bottom for contradicting slot (7) and disassembly slot (8) for fixed plate (6) are solid The fixed link (9) being scheduled on bridge or bridge pier, the depth of disassembly slot (8) is not less than the depth and fixed link for contradicting slot (7) (9) the sum of diameter.

2. a kind of pot bearing according to claim 1, it is characterized in that: the disassembly slot (8) is towards fixed plate (6) center Side is provided with the disassembly block (10) for contradicting with the fixed link (9) in disassembly slot (8).

3. a kind of pot bearing according to claim 2, it is characterized in that: be provided on the disassembly block (10) for it is solid The cambered surface (11) of fixed pole (9) surface fitting, the disassembly block (10) are detachably secured on fixed plate (6) by bolt.

4. a kind of pot bearing according to claim 2, it is characterized in that: it is provided with screw thread in the fixed link (9), it is described It is threaded in fixed link (9) pressing plate (12), the pressing plate (12) is welded on fixed plate (6).

5. a kind of pot bearing according to claim 1, it is characterized in that: the basin seat (2) and basin core (3) contact surface are half Spherical surface, the basin core (3) include rubber layer (14) and metal lath layer (13) of interlaced setting.

6. a kind of pot bearing according to claim 5, it is characterized in that: the metal lath layer (13) is and basin seat (2) Bottom surface hemisphere face diameter one to hemispherical net.

7. a kind of pot bearing according to claim 1, it is characterized in that: being set on the basin seat (2) and basin core (3) contact surface Be equipped with several hemispheric grooves (15), be provided on the basin core (3) it is several with hemispherical groove (15) one to protrusion.

8. a kind of pot bearing according to claim 5, it is characterized in that: the rubber layer of the metal lath layer (13) two sides (14) it is linked together by the mesh of metal lath.

9. one kind is for replacing the replacing options of any pot bearing of claim 1 ~ 8, it is characterized in that: this method includes Following steps:

Step 1: setting up bracket, and set up fixed and Mobile ladder stand；

Step 2: setting up jack between bridge pier and bridge；

Step 3: be lifted off bridge from pot bearing by the jack in step 2, so that bridge disengaging pot bearing 1 ~ 2mm；

Step 4: by the pressing plate (12) being welded on fixed plate (6) and the disassembly block (10) being fixed on fixed plate (6) from admittedly Fixed board is separated on (6)；

Step 5: entire pot bearing is pushed to disassembly slot (8) end, until fixed link (9) go out from the opening for contradicting slot (7) Come；

Step 6: entire pot bearing is rotated 60 ~ 90 degree around disassembly slot (8) bottom, then by entire pot bearing from bridge It is taken out between bridge pier；

Step 7: new pot bearing is put between bridge and bridge pier, and make fixed link (9) insertion disassembly slot (8) bottom, Rotation pot bearing makes the opening for contradicting slot (7) and fixed link (9) relatively later, when fixed link (9) and contradicts slot (7) opening Locate relative to when hold mobile pot bearing to contradicting slot (7) so that fixed link (9), which is located at, contradicts slot (7) bottom, in fixed plate (6) On be bolted disassembly block (10), and to dismantle block (10) and fixed link (9) and contradict, be screwed on fixed link (9) New pressing plate (12), and pressing plate (12) is bonded with fixed plate (6), pressing plate (12) and fixed plate (6) are welded on one later It rises, completes replacement；

Step 8: the step of splitting out temporary supporting system, installing when jacking up bridge is gradually fallen after rise.