CN217419302U - Assembled modulus formula bridge expansion joint - Google Patents
Assembled modulus formula bridge expansion joint Download PDFInfo
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- CN217419302U CN217419302U CN202221197651.0U CN202221197651U CN217419302U CN 217419302 U CN217419302 U CN 217419302U CN 202221197651 U CN202221197651 U CN 202221197651U CN 217419302 U CN217419302 U CN 217419302U
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- bridge expansion
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Abstract
The utility model provides an assembled modulus formula bridge expansion joint, relates to bridge construction technical field, including main apron, crossbeam apron, prefabricated cement component, watertight fittings, built-in fitting, bolt, levelling device, damping device, stagnant water adhesive tape, crossbeam, well roof beam. Bridge expansion joint bilateral structure symmetry sets up, and the well roof beam sets up in the centre at bridge expansion joint, and the built-in fitting is pre-buried in the basic unit of bridge expansion joint department when the bridge floor construction, and prefabricated cement component divide into two kinds, one kind is main prefab, one kind is supporting the prefab for supporting beam, and levelling device includes that the different steel sheet stack of a plurality of thickness forms, and damping device is the yielding rubber board, and watertight fittings is waterproof rubber board. The utility model discloses its simple structure, installation time is short, and the maintenance cost is low, long service life, the maintenance is changed conveniently, material repeatedly usable to the shock attenuation is effectual, can be under construction winter.
Description
Technical Field
The utility model relates to a bridge construction technical field, an assembled modulus formula bridge expansion joint specifically says so.
Background
Bridge expansion joints: it is referred to that in order to meet the requirement of deck deformation, expansion joints are usually provided between two beam ends, between a beam end and an abutment, or at the hinge joint of a bridge. The function of bridge expansion joint: consists in adjusting the displacements and couplings between the superstructure caused by the vehicle loads and the bridge construction materials. Once the telescopic device of the skew bridge is damaged, the speed, comfort and safety of driving are seriously influenced, and even driving safety accidents are caused.
The modular bridge expansion joint is a bridge expansion joint device consisting of side beams, a middle beam, a cross beam and a linkage mechanism, and is suitable for large and medium-span bridges with the expansion amount of 80-1200 mm. In the existing bridge expansion joint, steel bar pieces are embedded in the bridge deck during laying, the joint is planed after the bridge deck is solidified, cement is poured after the welding of bolt columns is finished on the embedded steel bar pieces, and a waterproof plate and a cover plate are laid before the cement is solidified and then are fastened with the welded bolt columns through nuts.
However, this construction method has the following disadvantages: 1. in the whole construction process, welding construction needs to be carried out on the bridge deck, a large amount of time needs to be consumed in the welding construction process, the bridge deck construction site is influenced by the environment, and the welding effect is difficult to guarantee; 2. the welding is accomplished the back and is pour cement again, paves waterproof board and apron and then fastens with the nut with welded bolt post before cement solidifies, needs a large amount of personnel at this work progress, and the operation of pouring of cement is influenced by the environment greatly, and the construction influences the quality of pouring winter to cement can spill over seam crossing, and is not pleasing to the eye, also influences the current of vehicle. Because the whole joint is integrally formed by pouring cement, cracks are easy to appear along the length direction of the bridge after the joint is affected by thermal expansion and cold contraction; 3. the maintenance cost of the whole structure is high, the replacement and maintenance are unchanged, and the service life is short; 4. the vehicle can be started only after the cement pouring is finished and the maintenance period of at least 7 days is needed, so that the construction progress is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming that above-mentioned prior art exists, the utility model aims to provide an assembled modulus formula bridge expansion joint, its simple structure, installation time is short, and the maintenance cost is low, long service life, the maintenance is changed conveniently, material repeatedly usable to the shock attenuation is effectual, can be under construction winter.
In order to solve the problem, the utility model adopts the following technical scheme: an assembled modulus type bridge expansion joint is characterized by comprising a main cover plate, a beam cover plate, a prefabricated cement component, a water stopping device, an embedded part, a bolt, a leveling device, a damping device, a water stopping adhesive tape, a beam and a middle beam,
the two sides of the bridge expansion joint are symmetrically arranged, the middle beam is arranged in the middle of the bridge expansion joint, the middle beams are arranged in parallel along the length direction of the expansion joint, the cross beam is fixedly connected with the middle beam, the two ends of the cross beam are arranged on the left side and the right side of the bridge expansion joint,
the embedded parts are embedded in a base layer at the expansion joints of the bridge during the construction of the bridge deck, the embedded parts are sleeve structures provided with internal threads, the openings of the embedded parts are upward and are vertically arranged relative to the bridge deck, the sleeve structures of the adjacent embedded parts are fixed on an embedded flat plate,
the prefabricated cement components are divided into two types, one type is a main prefabricated component and the other type is a supporting prefabricated component for supporting a cross beam, through holes matched with the positions of the embedded parts are arranged on the main prefabricated component and the supporting prefabricated component,
the leveling device is formed by overlapping a plurality of steel plates with different thicknesses, the steel plates can be increased or decreased according to the leveling requirement,
the damping device is a damping rubber plate, the damping device is provided with a through hole matched with the position of the embedded part,
the water stopping device is a waterproof rubber plate and is provided with a through hole matched with the position of the embedded part, the water stopping devices on two sides of the bridge expansion joint are integrated, the water stopping devices are arranged across the bridge expansion joint,
at the position of the beam, a beam cover plate, a rubber cushion block, a beam, a supporting prefabricated part, a water stopping device, a damping device, a leveling device and an embedded part are arranged from top to bottom in sequence, a bolt sequentially penetrates through the beam cover plate, the supporting prefabricated part, the water stopping device, the damping device and the leveling device to be tightly connected with the embedded part,
at the position where the cross beam is not installed, a main cover plate, a main prefabricated part, a water stopping device, a damping device, a leveling device and an embedded part are sequentially arranged from top to bottom, a bolt sequentially penetrates through the main cover plate, the main prefabricated part, the water stopping device, the damping device and the leveling device to be fixedly connected with the embedded part,
the main cover plate and the cross beam cover plate are provided with clamping grooves for installing water stop rubber strips, the two side edges of the middle beam are provided with clamping grooves for installing water stop rubber strips, and the water stop rubber strips are arranged among the main cover plate, the cross beam cover plate and the middle beam on the two sides of the middle beam.
Further: the water stop adhesive tape is of an upper water stop structure and a lower water stop structure, and the left side and the right side are clamping edges clamped in by matching with the clamping grooves.
The beneficial effects of the utility model are that:
1. its simple structure, installation time convenience time is short, and the maintenance cost is low, long service life, it is convenient to maintain and change, material repeatedly usable to the shock attenuation is effectual, can be under construction winter, and the cement part does not leak outward, can not influence the vehicle current, increase of service time, there is the clearance of expend with heat and contract with cold between every section of prefabricated cement spare, can prevent prefabricated cement spare fracture, and life is longer, and the construction is convenient more
2. The sleeve structure of several adjacent built-in fittings is fixed on an embedded flat plate, and when the construction, need not troublesome go to fix every sleeve structure's position like this, only need fix the position of embedded flat plate can, because the sleeve is fixed on embedded flat plate, make the more aspect of construction swift like this, and when need dig out seam department, dig to embedded flat plate can, and embedded flat plate also provides the reference surface of a construction, the operation of the subsequent handling of being convenient for.
3. Prefabricated cement component divide into two kinds, one kind is main prefab, one kind is the support prefab for supporting beam, because prefabricated cement component is prefabricated in advance, so transport to the scene direct construction can, and because form for traditional casting mode by the concatenation of a plurality of prefabricated cement components, can not receive expend with heat and contract with cold's influence, the crack can not appear, long service life is longer, and the construction is more convenient, the traditional casting mode has also been saved and long time that waits for the solidification has saved the time limit, and the construction does not receive seasonal environment's influence, the quality is more secure.
4. Damping device be the shock attenuation rubber slab, the cushioning effect that plays that can be fine has improved the life-span of using, has ensured the comfort level that the vehicle passed through.
5. The welding construction does not need to be carried out on the bridge floor in the whole construction process, so that a large amount of time for the welding construction is saved, and the problems that the welding effect is difficult to guarantee due to the influence of the environment on the bridge floor construction site are avoided.
6. The water stop adhesive tape is of an upper water stop structure and a lower water stop structure, and the left side and the right side are clamping edges clamped in by matching with the clamping grooves. This kind of structural design makes simple to operate swift to two-layer stagnant water structure, dual fail-safe effectively prevents to cause the infiltration problem after upper stagnant water structure is damaged, and life is longer.
7. The cross beam cover plate, the rubber cushion blocks, the cross beam, the supporting prefabricated part, the water stopping device, the damping device, the leveling device and the embedded parts are sequentially arranged at the position of the cross beam from top to bottom, the rubber cushion blocks are pressed on the cross beam, the cross beam is pressed in the middle after the cross beam cover plate and the embedded parts are fastened through bolts, the stability of a bridge expansion joint is guaranteed, the expansion amount of the bridge expansion joint is guaranteed, and the service life is greatly prolonged.
Drawings
The invention is further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the position of the mounting beam of the present invention;
FIG. 2 is a schematic structural view of the present invention in a position where no cross beam is installed;
FIG. 3 is a schematic view of the structure of the position of the mounting beam of the present invention;
fig. 4 is a schematic structural diagram of the present invention;
in the figure: the structure comprises a beam cover plate 1, a rubber cushion block 2, a beam 3, a support prefabricated part 4, a water stopping device 5, a damping device 6, a leveling device 7, a middle beam 8, a clamping groove 9, a water stopping rubber strip 10, a main prefabricated part 11, a main cover plate 12 and a bolt mounting hole 13.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the assembled modular bridge expansion joint comprises a main cover plate 12, a beam cover plate 1, a prefabricated cement component, a water stopping device 5, an embedded part, a bolt, a leveling device 7, a damping device 6, a water stopping rubber strip 10, a beam 3 and a middle beam 8.
The bridge expansion joint bilateral structure symmetry sets up, and well roof beam 8 sets up in the centre of bridge expansion joint, and well roof beam 8 sets up along the length direction parallel arrangement of expansion joint, crossbeam 3 and well roof beam 8 fixed connection, and the both ends of crossbeam 3 set up the left and right sides at the bridge expansion joint.
The embedded part is embedded in a base layer at the position of a bridge expansion joint when the bridge deck is constructed, the embedded part is of a sleeve structure provided with internal threads, and an opening of the embedded part is upward and is vertical to the bridge deck. The sleeve structures of the adjacent embedded parts are fixed on one embedded flat plate.
The precast concrete component is divided into two types, one type is main precast member 11, one type is supporting precast member 4 of supporting beam 3, all be equipped with on main precast member 11 and the supporting precast member 4 with built-in fitting position matched with through-hole.
The leveling device 7 is formed by overlapping a plurality of steel plates with different thicknesses, and the steel plates can be increased or decreased according to the leveling requirement.
The damping device 6 is a damping rubber plate, and the damping device 6 is provided with a through hole matched with the position of the embedded part.
The water stopping device 5 is a waterproof rubber plate, the water stopping device 5 is provided with a through hole matched with the position of the embedded part, the water stopping devices 5 on two sides of the bridge expansion joint are integrated, and the water stopping devices 5 stretch across the bridge expansion joint.
At the position of installing the cross beam 3, a cross beam cover plate 1, a rubber cushion block 2, the cross beam 3, a supporting prefabricated part 4, a water stopping device 5, a damping device 6, a leveling device 7 and an embedded part are arranged from top to bottom in sequence, and a bolt penetrates through the cross beam cover plate 1, the supporting prefabricated part 4, the water stopping device 5, the damping device 6, the leveling device 7 and the embedded part in sequence to be fixedly connected.
At the position where the cross beam 3 is not installed, a main cover plate 12, a main prefabricated part 11, a water stopping device 5, a damping device 6, a leveling device 7 and an embedded part are sequentially arranged from top to bottom, and bolts sequentially penetrate through the main cover plate 12, the main prefabricated part 11, the water stopping device 5, the damping device 6, the leveling device 7 and the embedded part to be tightly connected.
The main cover plate 12 and the beam cover plate 1 are provided with clamping grooves 9 for mounting water-stop rubber strips 10, the two side edges of the middle beam 8 are provided with clamping grooves 9 for mounting water-stop rubber strips 10, and the water-stop rubber strips 10 are arranged among the main cover plate 12, the beam cover plate 1 and the middle beam 8 on the two sides of the middle beam 8.
The water stop rubber strip 10 is of an upper water stop structure and a lower water stop structure, and the left side and the right side are clamping edges clamped in by matching with the clamping grooves 9.
The present invention is not limited to the above embodiment.
Claims (2)
1. An assembled modulus type bridge expansion joint is characterized by comprising a main cover plate, a beam cover plate, a prefabricated cement component, a water stopping device, an embedded part, a bolt, a leveling device, a damping device, a water stopping adhesive tape, a beam and a middle beam,
the two sides of the bridge expansion joint are symmetrically arranged, the middle beam is arranged in the middle of the bridge expansion joint, the middle beams are arranged in parallel along the length direction of the expansion joint, the cross beam is fixedly connected with the middle beam, the two ends of the cross beam are arranged on the left side and the right side of the bridge expansion joint,
the embedded part is embedded in a base layer at the expansion joint of the bridge when the bridge deck is constructed, the embedded part is of a sleeve structure provided with internal threads, the opening of the embedded part is upward and is vertically arranged relative to the bridge deck,
the prefabricated cement components are divided into two types, one type is a main prefabricated component and the other type is a supporting prefabricated component for supporting a cross beam, through holes matched with the positions of the embedded parts are arranged on the main prefabricated component and the supporting prefabricated component,
the leveling device is formed by overlapping a plurality of steel plates with different thicknesses, the steel plates can be increased or decreased according to the leveling requirement,
the damping device is a damping rubber plate, the damping device is provided with a through hole matched with the position of the embedded part,
the water stopping device is a waterproof rubber plate and is provided with a through hole matched with the position of the embedded part, the water stopping devices on two sides of the bridge expansion joint are integrated, the water stopping devices are arranged across the bridge expansion joint,
at the position of the beam, a beam cover plate, a rubber cushion block, a beam, a supporting prefabricated part, a water stopping device, a damping device, a leveling device and an embedded part are arranged from top to bottom in sequence, a bolt sequentially penetrates through the beam cover plate, the supporting prefabricated part, the water stopping device, the damping device and the leveling device to be tightly connected with the embedded part,
at the position where the cross beam is not installed, a main cover plate, a main prefabricated part, a water stopping device, a damping device, a leveling device and an embedded part are arranged in sequence from top to bottom, a bolt penetrates through the main cover plate, the main prefabricated part, the water stopping device, the damping device and the leveling device in sequence to be tightly connected with the embedded part,
the main cover plate and the cross beam cover plate are provided with clamping grooves for installing water stop adhesive tapes, the two side edges of the middle beam are provided with clamping grooves for installing water stop adhesive tapes, and the water stop adhesive tapes are arranged among the main cover plate, the cross beam cover plate and the middle beam on the two sides of the middle beam.
2. The assembled modular bridge expansion joint of claim 1, wherein the water-stop rubber strip is a water-stop structure with upper and lower layers, and the left and right sides are clamping edges for being clamped into the clamping grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221197651.0U CN217419302U (en) | 2022-05-18 | 2022-05-18 | Assembled modulus formula bridge expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221197651.0U CN217419302U (en) | 2022-05-18 | 2022-05-18 | Assembled modulus formula bridge expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217419302U true CN217419302U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221197651.0U Active CN217419302U (en) | 2022-05-18 | 2022-05-18 | Assembled modulus formula bridge expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217419302U (en) |
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2022
- 2022-05-18 CN CN202221197651.0U patent/CN217419302U/en active Active
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