Novel bridge vibration-reduction damper structure
A damper, a new type of technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of reducing the durability of bridge structures, aggravating the vibration of the upper structure of the bridge, and reducing the vibration of the bridge pier structure, so as to reduce the kinetic energy and increase the effective collision. Effect
Pending Publication Date: 2018-10-09
EAST CHINA JIAOTONG UNIVERSITY
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Problems solved by technology
[0002] Bridges are widely used in engineering because of their strong spanning ability and high space utilization. Vehicles running on bridges will cause low-frequency vibration of the bridge, which in turn will generate low-frequency noise. This will not only reduce the durability of the bridge structure, but also give The lives of residents along the bridge bring trouble
[0003] In practice, existing bridge vibration reduction measures include the use of vibration-damping rubber bearings at bridge supports, but rubber bearings can only reduce the vibration of the bridge pier structure, and will also aggravate the vibration of the bridge superstructure
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[0027] Such as Figure 1-3 As shown, the embodiment of the present invention provides a novel bridge vibration damper structure, which includes a multi-section vibration damper 100 as a cuboid structure, which is arranged inside the structure of the bridge deck 200, and each division cavity of the vibration damper 100 A layer of metal or non-metal particle group 110 is laid flat in the body, and a layer of cushioning material 120 is attached inside the cavity.
[0028] Such as Figure 1-3 As shown, the structure of the multi-zone vibration damper 100 of the present invention is arranged inside the bridge deck 200, and the vibration damper 100 is spaced at a certain distance between the sidewalk positions 210 on both sides and the double yellow line 220 in the middle of the bridge deck 200 along the longitudinal direction of the bridge deck 200. Arranged at intervals, the metal springs 130 inside the structure of the vibration damper 100 used for partitioning are steel springs...
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Abstract
The invention discloses a novel bridge vibration-reduction damper structure. The novel bridge vibration-reduction damper structure comprises a multi-partition vibration-reduction damper which is of acuboid structure and is arranged inside a deck structure. A layer of metallic or non-metallic particle groups is flat laid in each partition cavity of the vibration-reduction damper, and a layer of buffer material is attached to the interior of each cavity. The novel bridge vibration-reduction damper structure has the advantages that through the characteristic that the vibration-reduction damper converts vibration kinetic energy of a deck slab into heat energy which is lost due to effective collision of particles inside the damper, the deck slab achieves the more effective vibration-reductioneffect.
Description
technical field [0001] The invention relates to the technical field of civil engineering, in particular to a novel bridge vibration damper structure. Background technique [0002] Bridges are widely used in engineering because of their strong spanning ability and high space utilization. Vehicles running on bridges will cause low-frequency vibration of the bridge, which in turn will generate low-frequency noise. This will not only reduce the durability of the bridge structure, but also give The lives of residents along the bridge have brought troubles. [0003] In practice, existing bridge vibration reduction measures include the use of vibration-damping rubber bearings at the bridge bearings, but rubber bearings can only reduce the vibration of the bridge pier structure, and will also aggravate the vibration of the bridge superstructure. Therefore, there is a need for a vibration damper structure capable of reducing the vibration of the bridge superstructure. Contents of ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E01D19/12E01D21/00
CPCE01D19/125E01D21/00
Inventor 刘林芽左志远刘全民
Owner EAST CHINA JIAOTONG UNIVERSITY