A Prestressed Buffer Energy Dissipating Bridge Vibration Isolation Bearing
A vibration isolation bearing and prestressing technology, used in bridges, bridge construction, bridge parts, etc., can solve problems such as poor shock absorption, poor vibration isolation, and difficulty in reset after earthquakes, and achieve stable and effective damping and shock absorption. The effect of protection, stability improvement and good energy consumption
Active Publication Date: 2022-03-15
JIANGNAN UNIV
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: the traditional bridge bearing has poor shock absorption effect, poor vibration isolation, cannot resist large displacement and deformation, and will produce large residual displacement, which makes it difficult to reset after the earthquake
Method used
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Embodiment 1
[0031] Such as figure 1 As shown, a prestressed buffer energy-dissipating bridge vibration isolation bearing includes a buffer energy-dissipating member 4, and the buffer energy-dissipating member 4 includes a rotating shaft 14, and a rotary connector 12 is arranged above the rotating shaft 14, and the rotating connection The device 12 can be rotated 360 degrees. A roller device 11 is provided above the rotary connector 12. The section of the roller device 11 is I-shaped. Two sets of sliding rollers are provided on the side of the roller device 11; Shaft 16; the shaft surface of the rotating shaft 14 is provided with at least one spacer splint 15, and the inside of the spacer splint 15 is fixed with a vertical prestressed steel strand 13, and the prestressed steel strand 13 is made of high-strength steel wire twisted.
[0032] Such as figure 2 As shown, an upper support plate 2 is provided above the buffer energy-dissipating member 4, and the upper support plate 2 is stuck ...
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The invention discloses a vibration-isolation bearing of a prestressed buffer energy-dissipating bridge, which belongs to the technical field of bridge construction. The prestressed buffer energy-dissipating bridge vibration isolation bearing includes a buffer energy-dissipating member, and the buffer energy-dissipating member includes a rotating shaft. A rotary connector is arranged above the rotating shaft. A roller device is arranged above the rotating connector. The roller device There is a sliding roller on the top; a straight steel shaft is arranged under the rotating shaft; a limiting splint is arranged on the shaft of the rotating shaft, and a prestressed steel strand is fixed inside the limiting splint; an upper support plate is connected above the buffer energy-dissipating member , a sliding plate is arranged above the upper supporting plate; a lower supporting plate is connected under the buffer energy-dissipating member. The prestressed steel strand of the present invention can provide the stress required for the recovery of the support, resist damage from aftershocks, resist translation and rotation in the horizontal direction, have sufficient energy dissipation capacity and have a good post-earthquake self-resetting function , can effectively consume seismic energy.
Description
technical field [0001] The invention relates to a vibration-isolation bearing of a prestressed buffer energy-dissipating bridge, which belongs to the technical field of bridge construction. Background technique [0002] The bridge bearing is an important structural component connecting the upper structure and the lower structure of the bridge. It can transfer the load and deformation borne by the upper structure of the bridge to the lower structure of the bridge. It is an important supporting device and force transmission device of the bridge. In recent years, earthquakes and wind disasters have seriously threatened the survival and development of human beings, and have severely tested the stability and firmness of bridge supports. Traditional bridge anti-seismic and wind-resistant bearings improve the structure’s anti-seismic and wind-resistant capabilities by increasing structural stiffness, strength and ductility, but the anti-seismic and wind-resistant effects are not id...
Claims
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IPC IPC(8): E01D19/04
CPCE01D19/041
Inventor 王城泉渠政夏雨邹昀张震张光磊封剑森
Owner JIANGNAN UNIV