CN211312186U

CN211312186U - Adjustable combined type telescopic device for highway bridge

Info

Publication number: CN211312186U
Application number: CN201922172867.6U
Authority: CN
Inventors: 文四生; 文景军; 丁莹; 郭琴
Original assignee: Jinggangshan Boda Highway Construction Co ltd
Current assignee: Jinggangshan Boda Highway Construction Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-21
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a highway bridge is with can regulating and control combination formula telescoping device, including well core plate, sliding connection has the spout apron on the well core plate, well core plate and spout apron's both ends all symmetry are provided with wave crossbeam and power consumption pole, the wave crossbeam is the wave level along well core plate's horizontal extending direction and extends, power consumption pole distributes along the horizontal extending direction equidistance of wave crossbeam, the power consumption pole is fixed in on the wave crossbeam through the direction unable adjustment base is articulated. This public road bridge roof beam is with can regulating and control combination formula telescoping device to curved, slope, oblique, wide bridge adaptability is strong, can satisfy various bridge structures operation requirement, can guarantee that superstructure is under temperature variation to and the loading effect, realize shifting under power consumption pole and well core plate's synergism, and do not produce extra additional internal force, do not rupture, bending deformation, it is smooth-going really to have ensured the driving, make bridge engineering later maintenance expense reduce, extension bridge service life, guarantee driving safety.

Description

Adjustable combined type telescopic device for highway bridge

Technical Field

The utility model relates to a bridge road engineering is relevant, especially relates to a public road bridge roof beam is with can regulating and control combination formula telescoping device.

Background

The highway bridge expansion device makes the important connection system between the end faces of the commonly used span beams play a particularly important role in bridge expansion, bridge deck driving, water prevention, pollution prevention, noise prevention and the like, the quality and performance of the highway bridge expansion device directly influence the durable bridge expansion joints of the whole bridge, which are arranged for meeting the requirement of bridge deck deformation, the expansion joints are usually arranged between two beam ends, between the beam ends and a bridge abutment or on the hinged position of the bridge, the expansion joints are required to be in two directions parallel to and perpendicular to the axis of the bridge, free expansion, firmness and reliability are ensured, no jump is generated when a vehicle drives, the infiltration of rainwater and garbage silt can be prevented, the simple operation is required in the installation, detection, dirt elimination and maintenance, the rubber slab bridge expansion joints are one of numerous expansion joints, but the current rubber slab bridge expansion joints are not mature, bent, sloped, inclined and oblique, The wide bridge has weak adaptability, so most of the rubber plate type bridge expansion joints cannot meet the requirement of bridge deck deformation.

SUMMERY OF THE UTILITY MODEL

To the above situation, the to-be-solved technical problem of the utility model is to provide a can effectively adapt to highway bridge that bridge used with can regulate and control combination formula telescoping device.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a highway bridge is with regulating and controlling combination formula telescoping device, includes well core plate, sliding connection has the spout apron on the well core plate, the both ends of well core plate and spout apron are all the symmetry and are provided with wave crossbeam and power consumption pole, the wave crossbeam is wave horizontal extension along well core plate's horizontal extending direction, power consumption pole distributes along the horizontal extending direction equidistance of wave crossbeam, power consumption pole is fixed in on the wave crossbeam through the direction unable adjustment base is articulated, each all through articulated lead screw interconnect between the power consumption pole, in screwing firmly into wave crossbeam to the unable adjustment base screw thread, each symmetrical setting the cladding has fixed girder steel between the wave crossbeam, be connected fixedly through the bolt post between the fixed girder steel.

Preferably, anchor bolts are riveted on two sides of the central plate at the same time, and the anchor bolts are abutted against the rear of the wavy cross beam.

Preferably, well core plate comprises left spout, right spout and slide, left side spout and right spout all use the slide to set up as central symmetry, the non-junction that left side spout and right spout are connected is the slide, the spout apron has been inserted respectively in left side spout and the right spout.

Preferably, the sliding chute cover plate is completely filled in the sliding way and is mutually embedded with the sliding way, and the sliding chute cover plate is used for being welded and fixed with the bridge road.

Preferably, the wave beam is in a wave shape and extends and is distributed on two sides of the central plate, the energy consumption rods are fixed at the peak ends of the waves, the whole bottom end face of the wave beam is connected with the central plate, the folding angle is avoided, the transition mode is smooth transition, and an arc-shaped displacement seam is formed at the non-connection position where the wave beam is fixed with the central plate.

Preferably, the energy dissipation rod comprises a piston rod, soft dampers and a switching mechanism, the piston rod is longitudinally embedded into the energy dissipation rod, the soft dampers are installed at the bottoms of two sides of the piston rod, the soft dampers comprise hard dampers installed at the bottom of the piston rod, and the switching mechanism is arranged at the bottom of the hard dampers.

Preferably, the switching mechanism comprises a crank, a sliding block, a rotating guide rod and a triangular handle, the rotating guide rod is connected to the triangular handle through a pin shaft, the other end of the rotating guide rod is movably hinged to the sliding block, and the sliding block is sleeved on the crank in a sliding mode.

Preferably, the crab-bolt is used for firmly welding mutually with bridge embedded steel bar, and the quantity of being connected of preferred crab-bolt is for following at least an embedded steel bar of every square meter of bridge upper end crack direction.

Compared with the prior art, the beneficial effects of the utility model are that: the adjustable combined type telescopic device for the highway bridge has strong adaptability to bent, sloping, inclined and wide bridges, can meet the use requirements of various bridge structures, can ensure that an upper structure can realize displacement under the synergistic action of the energy consumption rod and the central plate under the action of temperature change, concrete shrinkage and fission and load, does not generate additional internal force, does not break or bend and deform, really ensures smooth driving, reduces the later maintenance cost of bridge engineering, prolongs the service life of the bridge and ensures the driving safety; the connection design of center plate and spout apron has effectual maintenance space, and application scope is wide, can both adopt on new, old bridge, especially is suitable for old bridge large displacement expansion joint's change very much, and the advantage is that other large displacement expansion joints are irreplaceable, and the transportation simple to operate of whole expansion joint component simultaneously need not the transport of overlength car, also need not use the crane loading and unloading.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the back structure of the center plate according to the present invention;

FIG. 3 is a schematic view of the structure of the energy dissipation rod of the present invention;

fig. 4 is a schematic structural diagram of the switching mechanism of the present invention.

In the figure: 1. the device comprises a central plate, 11, a left sliding groove, 12, a right sliding groove, 13, a sliding way, 2, a sliding groove cover plate, 3, a wavy beam, 31, a displacement seam, 4, an energy consumption rod, 41, a piston rod, 42, soft damping, 421, hard damping, 43, a conversion mechanism, 431, a crank, 432, a sliding block, 433, a rotation guide rod, 434, a triangular handle, 5, a fixed steel beam, 51, a bolt column, 6, an anchor bolt, 7, a hinged screw rod, 8 and a guide fixing base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows: referring to fig. 1, the present invention provides a technical solution: an adjustable combined telescopic device for a highway bridge comprises a central plate 1, a chute cover plate 2 is connected on the central plate 1 in a sliding mode, the chute cover plate 2 is completely filled in a slideway 13 and is mutually embedded with the slideway 13, the chute cover plate 2 is used for being welded and fixed with a bridge highway, wave beams 3 and energy consumption rods 4 are symmetrically arranged at two ends of the central plate 1 and the chute cover plate 2, the wave beams 3 horizontally extend in a wave shape along the transverse extension direction of the central plate 1, an arc displacement seam 31 is formed at the non-connection position where the wave beams 3 are fixed with the central plate 1, the displacement seam 31 is directly buried on a bridge body, waterproof materials can be filled in the concave part in the displacement seam 31 to prevent water from being transferred to the central plate 1 through the displacement seam 31, gravels are filled in the displacement seam 31, when the wave beams 3 at two sides are vibrated and displaced by the bridge body, potential energy which is not discharged by the energy consumption rods 4 is transferred to, displacement seam 31 accessible self inside filled waterproof material and grit cushion, because displacement seam 31 itself also is the arc structure, inside can hold a large amount of grit and filler, can effectively play the effect of protection and buffering destruction stress, carries out effectual safety protection to the bridge, has bigger flexible space.

In the above embodiment, the energy consumption rods 4 are connected with each other through the hinge screw 7, and are screwed into the wave beam 3 toward the fixing base 8, the wave beam 3 is in a wave shape and extends to two sides of the central plate 1, the energy consumption rods 4 are fixed at the peak end of the wave, the whole bottom end surface of the wave beam 3 is connected with the central plate 1, there is no folding angle, the transition mode is a gentle transition, the unconnected part where the wave beam 3 and the central plate 1 are fixed is formed with the arc displacement seam 31, the fixed steel beams 5 are wrapped between the symmetrically arranged wave beams 3, the fixed steel beams 5 are connected and fixed through the bolt columns 51, the fixed steel beams 5 extend out of the bridge deck gap from the left and right direction, and form the mutually combined supporting structure, so that the whole expansion joint has higher structural rigidity, can bear larger horizontal displacement, and does not need to reserve the notch in the beam body, greatly facilitating the design and construction.

Referring to fig. 1 and 2, as shown in the embodiment of the drawings, anchor bolts 6 are riveted on both sides of a central plate 1, the anchor bolts 6 are abutted to the rear of a wave beam 3, the anchor bolts 6 are used for being firmly welded with embedded steel bars of a bridge, preferably, the number of the anchor bolts 6 is at least one embedded steel bar per square meter along the crack direction of the upper end of the bridge, and the anchor bolts 6 are circular arc-shaped, so that the vertical angle between the driving direction and the crack direction can be changed into a multidirectional small intersection angle by embedding, the impact force between wheels and expansion joints is effectively dispersed, the vibration and noise generated by impact are reduced, and the beam body can flexibly stretch.

Referring to fig. 2, as shown in an embodiment of the drawing, a central plate 1 is composed of a left chute 11, a right chute 12 and a slide 13, the left chute 11 and the right chute 12 are symmetrically arranged with the slide 13 as a center, an unconnected part where the left chute 11 and the right chute 12 are connected is the slide 13, a chute cover plate 2 is respectively inserted into the left chute 11 and the right chute 12, the slide 13 is in an open or closed state by dragging the central plate 1, and the central plate 1 is separated from the sealed connection of the chute cover plate 2 by dragging, so that the whole central plate 1 can slide out of a bridge structure, and after being connected with a bridge, the central plate 1 can be taken out for maintenance in the later maintenance process.

Referring to fig. 3 and 4, as shown in the embodiment of the drawings, the dissipative rod 4 comprises a piston rod 41, a soft damper 42 and a switching mechanism 43, the piston rod 41 is longitudinally embedded into the dissipative rod 4, the soft dampers 42 are installed at the bottoms of both sides of the piston rod 41, the soft dampers 42 comprise a hard damper 421 installed at the bottom of the piston rod 41, the switching mechanism 43 is arranged at the bottom of the hard damper 421, the dissipative rod 4 is equidistantly distributed along the horizontal extension direction of the wave beam 3, the dissipative rod 4 is fixed on the wave beam 3 in a hinged manner through a guide fixing base 8, when the upper impact force reaches the piston rod 41, the piston rod 41 is forced to slide downwards, the energy consumption of the impact force is synchronously performed while sliding, when the piston rod 41 reaches the soft damper 42, the impact force is secondarily consumed, the hard damper 421 at the bottom is consumed for three times, the switching mechanism 43 comprises a crank 431 and a sliding block 432, The rotary guide rod 433 is connected with the triangular handle 434 through a pin shaft, the other end of the rotary guide rod 433 is movably hinged to the sliding block 432, the sliding block 432 is sleeved on the crank 431 in a sliding mode, if impact force cannot be consumed and absorbed, the hard damper 421 sinks under the action of the impact force until the hard damper contacts the conversion mechanism 43, the triangular handle 434 drives the rotary guide rod 433 to conduct the force to the sliding block 432, the sliding block 432 slides along the axis of the crank 431, the crank 431 also generates circumferential follow-up action, the impact force is guided and converted into mechanical rotating force, and energy absorption and consumption can be conducted on the impact force circularly and infinitely at one time.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a highway bridge is with regulation and control combination formula telescoping device, includes well core plate (1), its characterized in that: the central plate (1) is connected with a chute cover plate (2) in a sliding way, both ends of the central plate (1) and the chute cover plate (2) are symmetrically provided with a wave beam (3) and an energy dissipation rod (4), the wave-shaped cross beam (3) horizontally extends in a wave shape along the transverse extension direction of the central plate (1), the energy consumption rods (4) are distributed at equal intervals along the horizontal extension direction of the wave beam (3), the energy dissipation rods (4) are hinged and fixed on the wave beam (3) through a guide fixing base (8), the energy dissipation rods (4) are mutually connected through a hinged screw rod (7), the fixed base (8) is screwed into the wave beams (3), fixed steel beams (5) are wrapped between the wave beams (3) which are symmetrically arranged, the fixed steel beams (5) are connected and fixed through bolt columns (51).

2. The adjustable combined telescopic device for road and bridge according to claim 1, wherein anchor bolts (6) are simultaneously riveted on both sides of the central plate (1), and the anchor bolts (6) are closely arranged behind the wave beam (3).

3. The adjustable combined type telescopic device for the highway bridge according to claim 1, wherein the central plate (1) is composed of a left chute (11), a right chute (12) and a slide way (13), the left chute (11) and the right chute (12) are symmetrically arranged by taking the slide way (13) as a center, the slide way (13) is arranged at the non-connection part where the left chute (11) and the right chute (12) are connected, and chute cover plates (2) are respectively inserted into the left chute (11) and the right chute (12).

4. The adjustable combined type telescopic device for the highway bridge according to claim 1, wherein the chute cover plate (2) is completely filled in the slideway (13) and is mutually embedded with the slideway (13), and the chute cover plate (2) is used for being welded and fixed with the bridge and the highway.

5. The adjustable combined type telescopic device for the highway bridge according to claim 1, wherein the wave beam (3) is wave-shaped and extends on two sides of the central plate (1), the peak end of the wave is fixed with the energy consumption rod (4), the whole bottom end surface of the wave beam (3) is connected with the central plate (1), the folding angle is avoided, the transition mode is a gentle transition mode, and an arc displacement seam (31) is formed at the non-connection position where the wave beam (3) is fixed with the central plate (1).

6. The adjustable combined type telescopic device for the highway bridge according to claim 1, wherein the energy consumption rod (4) comprises a piston rod (41), a soft damper (42) and a conversion mechanism (43), the piston rod (41) is longitudinally embedded into the energy consumption rod (4), the soft dampers (42) are installed at the bottoms of two sides of the piston rod, the soft dampers (42) comprise a hard damper (421) installed at the bottom of the piston rod (41), and the conversion mechanism (43) is arranged at the bottom of the hard damper (421).

7. The adjustable combined telescopic device for the road bridge according to claim 6, wherein the conversion mechanism (43) comprises a crank (431), a slider (432), a rotating guide rod (433) and a triangular handle (434), the rotating guide rod (433) is connected to the triangular handle (434) through a pin shaft, the other end of the rotating guide rod (433) is movably hinged to the slider (432), and the slider (432) is slidably sleeved on the crank (431).

8. The adjustable combined type telescopic device for the highway bridge according to claim 2, wherein the anchor bolts (6) are used for being firmly welded with embedded steel bars of the bridge, and preferably, the connection quantity of the anchor bolts (6) is at least one embedded steel bar per square meter along the crack direction of the upper end of the bridge.