CN207828767U - Bridge pad for science of bridge building - Google Patents

Abstract

The utility model discloses a kind of bridge pads for science of bridge building, and for solving the problems, such as that bearing is unadjustable, which includes upper base plate and lower seat board, which is characterized in that further includes the rubber pad being arranged between upper and lower seat board and float plate；Collar flange and square groove are equipped at lower seat board upper surface, it is provided with grouting port I at collar flange and blocks the plug of grouting port I, the float plate includes flat part and the protrusion and cylindrical grooves that are arranged on the upside of flat part, and rubber pad is placed in cylindrical grooves；The cylindrical bump extended downwardly is arranged in the lower surface of the upper base plate, and the cylindrical bump is mating with cylindrical grooves downwards, and the side with the flat part of toroidal cavity cooperation is arcwall face.The adjustment of later stage bearing during one's term of military service may be implemented in the utility model, reduces the expense of later stage O＆M, does not have to replacing time, it is only necessary to simple slip casting maintenance.

Description

Bridge pad for science of bridge building

Technical field

The utility model is related to the bridge pad used in highway engineering technical field.

Background technology

In railway bridge, highway bridge, urban viaduct and various large-scale suspension frame structure buildings, the effect of bearing is by bridge The load of beam body pleasantly, be communicated securely to bridge pier up, and make bridge be in design point.

Bearing in the prior art includes the upper base plate being fixed in bridge beam body and the lower seat board that is fixed on bridge pier, and And upper and lower seat board is metalwork；Lower seat board is equipped with connection pin or anchoring is fastened, for lower seat board to be fixed on bridge pier On, it also is provided with connection pin on upper base plate or anchoring is fastened, for upper base plate to be fixed on bridge beam body；And in upper base plate and The rubber pad of elasticity is set between lower seat board.

Ideally, rubber pad has cushioning effect, the vibration energy for absorbing bridge.In Practical Project, branch The connector that seat is formed a connecting link as bridge bears the load of bridge beam body transmission for a long time, and especially, beam body tilts or bridge After pier settles, for example, bridge pier deflects 3 degree of angles with respect to bridge, it can be with reference chart 6, at this point, stress just returns unevenness in bearing It is even so that the uneven compression of internal rubber pad causes to generate deflection stress inside bearing, since the stress inside bearing makes The stress of horizontal direction is generated between upper base plate and lower seat board, the bearing capacity in bearing horizontal direction itself is almost nil, makes It fails at bearing, in turn results in bridge and collapse, cause the vehicle in traveling that accident occurs, cause life and the damage of other properties It loses.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a kind of bridge pad for science of bridge building, solves Existing rubber support can not settle the problem of situation adjusts upper base plate and lower seat board angle according to bridge pier.

Technical solution is used by the utility model solves its technical problem：

For the bridge pad of science of bridge building, including upper base plate and lower seat board, which is characterized in that further include setting it is upper, Rubber pad between lower seat board and float plate；

It is equipped with collar flange and square groove at lower seat board upper surface, grouting port I and envelope are provided at collar flange The plug of stifled grouting port I,

The float plate includes flat part and the protrusion and cylindrical grooves that are arranged on the upside of flat part, the cylinder Rubber pad is placed in shape groove, the rubber pad is hidden in inside cylindrical grooves；

The lower surface of the upper base plate is arranged the cylindrical bump extended downwardly, the cylindrical bump downwards with it is cylindric Groove is mating, and the side with the flat part of cylindrical grooves cooperation is arcwall face.

The thickness of the rubber pad is less than cylindrical grooves depth.

The cylindrical grooves depth is not more than 8 centimetres.

The depth of the square groove is not more than greatly 10 centimetres.

It is provided with upper and lower perforative grouting port II on the flat part and blocks the plug of grouting port II.

Dotted salient point is provided at the lower surface of the cylindrical bump.

The utility model has the beneficial effects that：

The adjustment of later stage bearing during one's term of military service may be implemented in the utility model, reduces the expense of later stage O＆M, does not have to replace Bearing, it is only necessary to which simple slip casting maintenance shortens maintenance time, reduces maintenance cost, has practicability.

Description of the drawings

Fig. 1 is the dismounting schematic diagram of the utility model.

Fig. 2 is the stereogram of the utility model.

Fig. 3 is sectional view at A--A in Fig. 2.

Fig. 4 is partial enlarged view at C in Fig. 3.

Fig. 5 is sectional view at B--B in Fig. 2.

Fig. 6 is the service state of normal condition undersetting.

Fig. 7 is after bridge pier settles（Pier slope）The deformation state of bearing.

Fig. 8 is the jack operation of maintenance process.

Fig. 9 is the slip casting and maintenance of maintenance process.

Figure 10 is service state after the slip casting of maintenance process.

In figure：100 upper base plates, 110 connection pins or anchoring are fastened, 120 cylindrical bumps,

200 times seat boards, 210 connection pins or anchoring are fastened, 220 collar flanges, 230 square grooves, 240 grouting ports I,

300 float plates, 310 flat parts, 311 arcwall faces, 320 protrusions, 330 cylindrical grooves, grouting port II 340,

400 rubber pads,

01 bridge pier, 02 bridge, 03 concrete mortar slurry, 04 jack.

Specific implementation mode

For the bridge pad of science of bridge building, structurally, including upper base plate 100, lower seat board 200 and setting it is upper, Float plate 300 between lower seat board and rubber pad 400, wherein upper and lower seat board is metalwork；Lower seat board is equipped with connecting pin Column or anchoring fasten 210, and for lower seat board to be fixed on bridge pier 01, connection pin or anchoring also are provided on upper base plate 100 110 are fastened, for upper base plate to be fixed on bridge 02.That is, upper base plate is fixed relative to bridge, no It is adjustable, lower seat board relative to bridge be it is fixed, it is unadjustable.

It is equipped with the rectangular collar flange 220 upwardly extended at 200 upper surface of lower seat board, is formed on the top of upper base plate One square groove 230, the depth of square groove is within 10 centimetres.Collar flange side is provided with grouting port I 240, notes It is sealed using metal closures under slurry I conventional sense of mouth, one of best mode is matched between metal closures and grouting port I for threaded engagement It closes.

Float plate 300 includes the protrusion 320 of flat part 310 and the circular ring shape being arranged on the upside of flat part, which encloses A cylindrical grooves 330 are formed afterwards, and cylindrical grooves depth places rubber pad within 8 centimetres in cylindrical grooves 400, best, the thickness of rubber pad is less than at least 2 centimetres of cylindrical grooves depth, that is to say, that rubber pad is hidden in cylindric Inside grooves, the corresponding lower surface in upper base plate 100 are arranged the cylindrical bump 120 extended downwardly, the cylindrical bump to It is lower mating with cylindrical grooves, and dotted salient point is provided at the lower surface of cylindrical bump 120, increase and rubber pad Binding force.Above-mentioned structural reference Fig. 1 to one of Fig. 5, best mode, is provided on the flat part of float plate 300 Under perforative circular hole, and be fixed up at circular hole the grouting port II 340 of extension, grouting port II is at least one, or more It is a.Mating surface with the flat part 310 of cylindrical grooves cooperation is arcwall face 311, that is to say, that it is the side of arc, Ability with aligning.

In the science of bridge building newly to complete, the service state of bearing is with reference to figure 6, after bearing is on active service a period of time, usually 2-3 or so, bridge pier may settle, and after sedimentation, bridge pier is with respect to run-off the straight, with reference to figure 7, at this point, Bearing Seat Force situation It is poor, it is especially flexible rubber pad 400 and change in shape occurs（Caused by discontinuity）, need to be serviced, adjust.It adjusts Journey is had suffered with reference to figure 8 to Figure 10.

First, it is supported operation between the bridge pier and bridge using jack 04 near bearing, in jack It under effect, is detached in the height direction between bridge and bridge pier, and separating distance cannot be too big, ensures on upper base plate Cylindrical bump will not fall off from cylindrical grooves, and during this, upper base plate is moved up with bridge so that float plate It is in quick condition with the rubber pad in float plate, that is, float plate does not stress, then by grouting port I to float plate and rectangular Slip casting in space in groove, injecting paste material is the concrete mortar slurry 03 being commonly used in civil engineering, after filling, is blocked Grouting port I, and conserve 24 hours, after maintenance, cancel jack so that the dead weight of bridge is pressed on bridge pier, completes to safeguard.It is complete After maintenance so that bridge restores horizontality, while bearing restores normal operating condition.

After being runed by the several years, when needing to be safeguarded again, slip casting, slip casting step can be carried out by grouting port II The same above process, can be for reference.

Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, relevant technical staff in the field is to this The various modifications of utility model and improvement should all expand in the protection domain as determined by the utility model claims book.

Claims (6)

1. for the bridge pad of science of bridge building, including upper base plate and lower seat board, which is characterized in that further include being arranged upper and lower Rubber pad between seat board and float plate；

It is equipped with collar flange and square groove at lower seat board upper surface, grouting port I is provided at collar flange and is blocked and is noted The plug of mouth I is starched,

The float plate includes flat part and the protrusion and cylindrical grooves that are arranged on the upside of flat part, described cylindric recessed Rubber pad is placed in slot, the rubber pad is hidden in inside cylindrical grooves；

The lower surface of the upper base plate is arranged the cylindrical bump extended downwardly, and the cylindrical bump is downwards and cylindrical grooves Mating, the side with the flat part of cylindrical grooves cooperation is arcwall face.

2. the bridge pad according to claim 1 for science of bridge building, which is characterized in that the thickness of the rubber pad is small In cylindrical grooves depth.

3. the bridge pad according to claim 2 for science of bridge building, which is characterized in that the cylindrical grooves depth No more than 8 centimetres.

4. the bridge pad according to claim 3 for science of bridge building, which is characterized in that the depth of the square groove It is big to be not more than 10 centimetres.

5. the bridge pad according to claim 1 for science of bridge building, which is characterized in that be provided on the flat part Upper and lower perforative grouting port II and the plug for blocking grouting port II.

6. the bridge pad according to claim 1 for science of bridge building, which is characterized in that under the cylindrical bump Dotted salient point is provided at surface.