CN213538701U - Vibration damper for bridge widening construction - Google Patents

Abstract

The utility model provides a damping device is used in construction is widened to bridge. Damping device for construction is widened to bridge includes connection structure and damping subassembly, connection structure includes first connecting plate, second connecting plate and bolt, first connecting plate and second connecting plate are through many bolted connection, and the bolt divide into two joining regions about first connecting plate and second connecting plate, and a plurality of damping subassemblies that are used for two new and old bridges cushion, the damping subassembly of protection connection is installed respectively on two joining regions, and the damping subassembly symmetric distribution in each joining region, damping subassembly includes the connecting piece, closing member and energy dissipation piece, and the connecting piece includes sleeve and slide bar, the telescopic one end and the inner wall fixed connection of connecting plate, and the sleeve sets up perpendicularly, the slide bar insert establish to telescopic interior and with sleeve inner wall sliding connection, and the bottom of slide bar extends the sleeve. The utility model provides a vibration damper for construction is widened to bridge has the advantage that reduces the amount of deflection difference between new and old bridge.

Description

Vibration damper for bridge widening construction

Technical Field

The utility model relates to a bridge equipment technical field especially relates to a damping device is used in construction is widened to bridge.

Background

In recent years, the traffic volume of China is greatly increased, the traffic jam phenomenon of all regions is intensified, and the traffic capacity of roads is seriously insufficient. The method has the advantages that the existing road and bridge are widened and reformed, the traffic capacity of the old bridge is improved, the phenomenon of traffic jam can be effectively relieved, the service life of the old bridge can be prolonged, and the method has good economic benefits.

At present, in an old bridge reconstruction project, a cast-in-place section is often adopted to realize connection between a new bridge and an old bridge, when the old bridge is loaded by traffic, the old bridge is subjected to vibration impact, and deflection difference can be generated between the new bridge and the old bridge, so that the quality of cast-in-place concrete is seriously influenced, and therefore, in the new bridge and the old bridge widening reconstruction project, measures must be taken to reduce the deflection difference between the new bridge and the old bridge generated by traffic load.

Therefore, it is necessary to provide a vibration damping device for bridge widening construction to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a vibration damper is used in construction is widened to bridge with reduce the amount of deflection difference between new and old bridge.

In order to solve the technical problem, the utility model provides a damping device for construction is widened to bridge includes: connection framework and damping subassembly, connection framework includes first connecting plate, second connecting plate and bolt, first connecting plate and second connecting plate pass through many bolted connection, and the bolt divide into first connecting plate and second connecting plate and control two joining regions, and a plurality of damping subassemblies that are used for two new and old bridges to cushion, the protection is connected are installed respectively on two joining regions, and the damping subassembly symmetric distribution in each joining region, damping subassembly includes the connecting piece, the piece of closing and energy dissipation.

Preferably, the connecting piece includes sleeve and slide bar, and telescopic one end and the inner wall fixed connection of connecting plate, and the sleeve sets up perpendicularly, and the slide bar is inserted and is established to telescopic interior and with sleeve inner wall sliding connection, and the bottom of slide bar extends the sleeve.

Preferably, the pressfitting spare includes the pressfitting board, the arc plastic board, adapter sleeve and shock attenuation arc board, the outer wall fixed mounting of pressfitting board has the decurrent arc plastic board of arc mouth, and the inner circle wall mounting of arc plastic board has the shock attenuation arc board, the both ends of shock attenuation arc board respectively with the both sides inner wall fixed connection of arc plastic board, and the bottom of shock attenuation arc board and the last fixed surface of pressfitting board are connected, the middle part fixed mounting of arc plastic board has the adapter sleeve, and the bottom fixed connection of adapter sleeve and slide bar.

Preferably, the extension end of the sliding rod is connected with a spring in series, one end of the spring is fixedly connected with the outer wall of the sleeve, and the other end of the spring is fixedly connected with the upper surface of the connecting sleeve.

Preferably, the energy dissipation piece includes the stationary blade, the dwang, the catch bar, store up husky box, push pedal and extension spring, four stationary blades are installed respectively in telescopic upper and lower both sides, and all articulated on each stationary blade have the dwang, the other end of two dwangs of sleeve homonymy all articulates with the one end of catch bar, and the other end of catch bar inserts and establishes to storing up husky box in and articulated with the outer wall of push pedal, the inner wall sliding connection of push pedal and storage husky box, and store up husky box fixed mounting on the inner wall of connecting plate, install elastic connection's extension spring between two dwangs.

Preferably, the sand storage box stores metal sand grains, and an exhaust valve is fixedly mounted on the sand storage box.

Compared with the prior art, the utility model provides a damping device for construction is widened to bridge has following beneficial effect:

1. when the old bridge deck vibrates due to running vehicles, the compression plates float upwards and enable the arc-shaped plastic plates to press upwards and the damping arc plates to expand to clear up the amplitude of part of the old bridge deck, and the slide rods slide into the sleeves under the action of pressing on the arc-shaped plastic plates and further compress the springs, so that the vibration and deflection of new and old bridges are reduced, and the vehicles can conveniently and safely pass;

2. the utility model discloses when appearing opposite internal stress on new and old bridge floor, store up the metal sand grain in the husky box and promote the push pedal, consequently the catch bar that the push pedal is connected promotes two dwang expansions and makes the extension spring tensile, has consequently reduced new and old bridge floor internal stress and the damage that causes.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a vibration damping device for bridge widening construction provided by the present invention;

fig. 2 is an enlarged schematic view of a portion a shown in fig. 1.

Reference numbers in the figures: 1. the connecting structure comprises a connecting framework, 11, a first connecting plate, 12, a second connecting plate, 13, bolts, 2, a connecting piece, 21, a sleeve, 22, a sliding rod, 3, a pressing piece, 31, a pressing plate, 32, an arc plastic plate, 33, a connecting sleeve, 34, a damping arc plate, 4, a spring, 5, an energy dissipation piece, 51, a fixing piece, 52, a rotating rod, 53, a push rod, 54, a sand storage box, 55, a push plate, 56, a tension spring, 6 and an exhaust valve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a vibration damping device for bridge widening construction according to the present invention; fig. 2 is an enlarged schematic view of a portion a shown in fig. 1. Damping device for construction is widened to bridge includes: a connection frame 1 and a damping assembly.

In a specific implementation process, as shown in fig. 1, the connection framework 1 includes a first connection plate 11, a second connection plate 12 and bolts 13, the first connection plate 11 and the second connection plate 12 are connected by a plurality of bolts 13, and the bolts 13 divide the first connection plate 11 and the second connection plate 12 into a left connection area and a right connection area, and a plurality of damping assemblies for performing damping and protection connection on two new and old bridges are respectively installed on the two connection areas, and the damping assemblies in each connection area are symmetrically distributed.

It should be noted that: the connecting area of one side of the connecting framework 1 is inserted into the end face of the old bridge close to the new bridge, the connecting area of the other side of the connecting framework 1 is inserted into the end face of the new bridge close to the old bridge, and the nut on the bolt 13 is screwed in a rotating mode, so that the pressing and combining piece 3 on the first connecting plate 11 and the second connecting plate 12 can fixedly connect the two bridge bodies.

Referring to fig. 1 and 2, the vibration damping assembly includes a connecting member 2, a pressing member 3 and an energy dissipation member 5, the connecting member 2 includes a sleeve 21 and a sliding rod 22, one end of the sleeve 21 is fixedly connected to an inner wall of the connecting plate, the sleeve 21 is vertically disposed, the sliding rod 22 is inserted into the sleeve 21 and slidably connected to an inner wall of the sleeve 21, a bottom of the sliding rod 22 extends out of the sleeve 21, the pressing member 3 includes a pressing plate 31, an arc plastic plate 32, a connecting sleeve 33 and a vibration damping arc plate 34, the outer wall of the pressing plate 31 is fixedly provided with the arc plastic plate 32 with a downward arc, the inner wall of the arc plastic plate 32 is provided with the vibration damping arc plate 34, two ends of the vibration damping arc plate 34 are respectively fixedly connected to inner walls of two sides of the arc plastic plate 32, the bottom of the vibration damping arc plate 34 is fixedly connected to an upper surface of the pressing plate 31, the middle part of the arc plastic plate 32 is fixedly provided with the connecting, the extending end of the sliding rod 22 is connected with a spring 4 in series, one end of the spring 4 is fixedly connected with the outer wall of the sleeve 21, the other end of the spring 4 is fixedly connected with the upper surface of the connecting sleeve 33, the energy dissipation member 5 comprises a fixed plate 51, a rotating rod 52, a pushing rod 53, a sand storage box 54, a push plate 55 and a tension spring 56, wherein the four fixed plates 51 are respectively arranged at the upper side and the lower side of the sleeve 21, and each fixed plate 51 is hinged with a rotating rod 52, the other ends of the two rotating rods 52 on the same side of the sleeve 21 are hinged with one end of a push rod 53, and the other end of the push rod 53 is inserted into the sand storage box 54 and hinged with the outer wall of the push plate 55, the push plate 55 is connected with the inner wall of the sand storage box 54 in a sliding way, and the sand storage box 54 is fixedly arranged on the inner wall of the connecting plate, a tension spring 56 which is elastically connected is arranged between the two rotating rods 52, the sand storage box 54 stores metal sand particles, and the vent valve 6 is fixedly arranged on the sand storage box 54.

It should be noted that: the pressfitting board 31 will be two old and new bridge decks pressfitting on the pressfitting piece 3, and when old bridge deck appeared vibrating because of the vehicle that traveles, pressfitting board 31 come up and make arc plastic board 32 push up, shock attenuation arc board 34 expands and clears up the amplitude of part old bridge deck, and the effect that slide bar 22 pushed up on arc plastic board 32 slides in sleeve 21, and then spring 4 compresses, consequently, reduce the vibration and the amount of deflection of new and old bridge, make things convenient for vehicle safety current, thereby the practicality of equipment has been improved, and when the opposite internal stress appeared on old and new bridge deck, the metal sand grain that stores up in the husky box 54 promotes push pedal 55, consequently, push rod 53 that push pedal 55 connects promotes two dwang 52 and expands and make extension spring 56 tensile, consequently, the damage that new and old bridge deck internal stress and cause has been reduced.

The utility model provides a damping device for construction is widened to bridge theory of operation as follows:

the old bridge inserted and arranged at one side of the connecting framework 1 is close to the end face of the new bridge, the new bridge inserted and arranged at the other side of the connecting framework 1 is close to the end face of the old bridge, the nut on the bolt 13 is screwed in a rotating way, so that the pressing part 3 on the first connecting plate 11 and the second connecting plate 12 fixedly connects the two bridge bodies, the pressing plate 31 on the pressing part 3 presses the new bridge deck and the old bridge deck, when the old bridge deck vibrates because of a running vehicle, the pressing plate 31 floats upwards and enables the arc-shaped plastic plate 32 to press upwards and the shock absorption arc plate 34 to expand to eliminate the amplitude of part of the old bridge deck, the action of the sliding rod 22 pressing on the arc-shaped plastic plate 32 slides into the sleeve 21, and then the spring 4 is compressed, so that the vibration and the deflection of the new bridge and the old bridge are reduced, the vehicle is convenient to safely pass through, the practicability of the equipment is improved, and when opposite internal stress appears on the, the metal sand grains in the sand storage box 54 push the push plate 55, so that the push rod 53 connected with the push plate 55 pushes the two rotating rods 52 to expand to stretch the tension spring 56, thereby reducing the damage caused by the stress in the new and old bridge deck.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention can be used in other related technical fields, directly or indirectly, or in the same way as the present invention.

Claims (6)

1. The utility model provides a damping device is used in construction is widened to bridge which characterized in that includes:

the connecting structure (1) comprises a first connecting plate (11), a second connecting plate (12) and bolts (13), wherein the first connecting plate (11) and the second connecting plate (12) are connected through a plurality of bolts (13), and the bolts (13) divide the first connecting plate (11) and the second connecting plate (12) into a left connecting area and a right connecting area;

the vibration reduction assemblies are used for buffering, protecting and connecting two new bridges and two old bridges and are respectively arranged on the two connecting areas, the vibration reduction assemblies in each connecting area are symmetrically distributed, and each vibration reduction assembly comprises a connecting piece (2), a pressing piece (3) and an energy dissipation piece (5).

2. The vibration damping device for bridge widening construction according to claim 1, wherein the connecting member (2) comprises a sleeve (21) and a sliding rod (22), one end of the sleeve (21) is fixedly connected with the inner wall of the connecting plate, the sleeve (21) is vertically arranged, the sliding rod (22) is inserted into the sleeve (21) and is slidably connected with the inner wall of the sleeve (21), and the bottom of the sliding rod (22) extends out of the sleeve (21).

3. The vibration damping device for bridge widening construction according to any one of claims 1 to 2, wherein the pressing member (3) comprises a pressing plate (31), an arc-shaped plastic plate (32), a connecting sleeve (33) and a shock-absorbing arc plate (34), the arc-shaped plastic plate (32) with a downward arc opening is fixedly mounted on the outer wall of the pressing plate (31), the shock-absorbing arc plate (34) is mounted on the inner circular wall of the arc-shaped plastic plate (32), two ends of the shock-absorbing arc plate (34) are fixedly connected with the inner walls of two sides of the arc-shaped plastic plate (32) respectively, the bottom of the shock-absorbing arc plate (34) is fixedly connected with the upper surface of the pressing plate (31), the connecting sleeve (33) is fixedly mounted in the middle of the arc-shaped plastic plate (32), and the connecting sleeve (33) is fixedly connected with the bottom end of the sliding rod (22).

4. The vibration damping device for bridge widening construction according to claim 2, wherein the extending end of the sliding rod (22) is connected with a spring (4) in series, one end of the spring (4) is fixedly connected with the outer wall of the sleeve (21), and the other end of the spring (4) is fixedly connected with the upper surface of the connecting sleeve (33).

5. The vibration damper for bridge widening construction according to claim 1, wherein the energy dissipater (5) comprises a fixing piece (51), a rotating rod (52), a pushing rod (53), a sand storage box (54), a pushing plate (55) and a tension spring (56), the four fixing pieces (51) are respectively installed on the upper side and the lower side of the sleeve (21), and each fixed plate (51) is hinged with a rotating rod (52), the other ends of the two rotating rods (52) on the same side of the sleeve (21) are hinged with one end of a push rod (53), the other end of the push rod (53) is inserted into the sand storage box (54) and is hinged with the outer wall of the push plate (55), the push plate (55) is connected with the inner wall of the sand storage box (54) in a sliding way, and the sand storage box (54) is fixedly arranged on the inner wall of the connecting plate, and an elastically connected tension spring (56) is arranged between the two rotating rods (52).

6. The vibration damping device for bridge widening construction according to claim 5, wherein metal sand grains are stored in the sand storage box (54), and the exhaust valve (6) is fixedly mounted on the sand storage box (54).

Images