Self-opening displacement multi-stage hydraulic energy absorber
A self-opening and energy-consuming technology, which is applied to bridge parts, bridges, buildings, etc., can solve problems such as difficult to improve the damping of the main girder or main cable of the suspension bridge, and achieve the effect of reducing resistance and avoiding accidents
Active Publication Date: 2017-09-05
HUNAN UNIV OF SCI & TECH
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[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0039] see figure 1 , The energy absorber of the present embodiment utilizes a box-type steel box girder 24 on the bridge structure, and a square concave hole 25 is processed at the bottom of the steel box girder 24 . The energy absorber of this embodiment also includes a hanging basket 5; see figure 2 , image 3 , hanging blue 5 comprises square hanging blue outer frame 16, and hanging blue outer frame 16 is successively covered with cylindrical hanging blue middle tube 19 and hanging blue inner tube 20, hanging blue outer frame 16, hanging blue middle tube 19 and The top of hanging blue inner tube 20 is fixedly connected with hanging blue top plate 21, from figure 2 It can be seen in the figure that the bottom of the hanging basket is open, and the heights of the hanging basket outer frame 16, the hanging basket middle tube 19, and the ...
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The invention discloses a displacement type multistage hydraulic energy absorption and consumption device capable of being switched on automatically. The device comprises a steel box girder, wherein a hanging basket is placed in a square sunken hole in the bottom of the steel box girder; the hanging basket comprises a square hanging basket outer frame, a cylindrical hanging basket middle cylinder and a hanging basket inner cylinder are sleeved with the hanging basket outer frame, a plurality of water holes are formed in a hanging basket top plate, and cover plates are hinged to the water holes; lifting ropes connected to four corners of the hanging basket penetrate a holding device, bypass a pulley and then are wound on a rotary cylinder mounted on the steel box girder top plate; a horizontal supporting plate is arranged at each of four bottom corners of the square sunken hole, a vertical retaining plate is arranged on each horizontal supporting plate, the vertical retaining plates are connected with the bottom of a side plate of the square sunken hole through limit springs, and a horizontal corner plate is arranged in each of four right angles of the bottom of the hanging basket outer frame; four corners of the bottom of the hanging basket outer frame are supported on the four horizontal supporting plates at the bottom of the square sunken hole through circular balls. The energy absorption and consumption device can be automatically switched on during initial vibration of a bridge, energy is absorbed and consumed hydraulically, and accordingly vibration of the bridge is inhibited.
Description
technical field [0001] The invention belongs to the technical field of structural dampers for large-span suspension bridges, and in particular relates to a self-opening displacement type multi-stage hydraulic energy absorber. Background technique [0002] Long-span suspension bridges can cross large rivers and can avoid the construction of deep-water foundations and are widely used. However, due to its large span and small damping of the main girder and main cable, it is easy to cause large torsion or combined bending-torsional vibration under the action of strong winds, resulting in bridge damage. The problem of its wind resistance stability is the main influence that limits the further increase of its span. factor. Increasing the damping of the suspension bridge can significantly improve its wind resistance stability, but the super-long-span suspension bridges are mostly located on the channel with heavy traffic. In order to ensure the safety of navigation, it is difficul...
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IPC IPC(8): E01D19/00
CPCE01D19/00
Inventor 禹见达彭临峰于浩禹蒲阳
Owner HUNAN UNIV OF SCI & TECH