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A platform for research: civil engineering, architecture and urbanism
Damper displacement speed amplifying device with variable amplification factor
The invention relates to a damper displacement speed amplifying device with a variable amplification factor. The damper displacement speed amplifying device comprises levers with variable amplification factors, fulcrum shafts, connecting plates, damper outer plates and a middle plate. The connecting plates are fixedly connected with an upper floor beam. The damper outer plates are fixedly connected with a lower floor beam. The upper ends of the levers are hinged to the connecting plates. The lower ends of the levers are hinged to the middle plate. The middle upper portion of each lever is provided with a groove. The fulcrum shafts penetrate through the damper outer plates and the grooves in the levers and are fixed to the damper outer plates, so that the fulcrum shafts cannot be moved relatively. When the upper floor beam moves, the levers can vertically move around the fulcrum shafts, and the purpose of changing the amplification factor is achieved. The story drift of a structure is amplified by the levers with the variable amplification factors and then acts on the middle plate of a damper, so that the relative displacement and the relative speed of the damper are increased, the energy-dissipating capacity of the damper is improved, and it is guaranteed that under the condition that the damper provides sufficient damping force, the relative displacement of the damper is within an allowable displacement range.
Damper displacement speed amplifying device with variable amplification factor
The invention relates to a damper displacement speed amplifying device with a variable amplification factor. The damper displacement speed amplifying device comprises levers with variable amplification factors, fulcrum shafts, connecting plates, damper outer plates and a middle plate. The connecting plates are fixedly connected with an upper floor beam. The damper outer plates are fixedly connected with a lower floor beam. The upper ends of the levers are hinged to the connecting plates. The lower ends of the levers are hinged to the middle plate. The middle upper portion of each lever is provided with a groove. The fulcrum shafts penetrate through the damper outer plates and the grooves in the levers and are fixed to the damper outer plates, so that the fulcrum shafts cannot be moved relatively. When the upper floor beam moves, the levers can vertically move around the fulcrum shafts, and the purpose of changing the amplification factor is achieved. The story drift of a structure is amplified by the levers with the variable amplification factors and then acts on the middle plate of a damper, so that the relative displacement and the relative speed of the damper are increased, the energy-dissipating capacity of the damper is improved, and it is guaranteed that under the condition that the damper provides sufficient damping force, the relative displacement of the damper is within an allowable displacement range.
Damper displacement speed amplifying device with variable amplification factor
GUO YAN (author) / LIU WENGUANG (author) / HE WENFU (author) / YU HONGBAO (author) / YANG QIAORONG (author) / DONG XIULING (author) / HU CHANGYING (author)
2015-06-24
Patent
Electronic Resource
English
IPC:
E04B
Allgemeine Baukonstruktionen
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GENERAL BUILDING CONSTRUCTIONS
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