A damping device applied in concrete frame structure

Abstract

The invention discloses a shock absorbing device applied to a concrete frame structure, which comprises a shock absorbing mechanism installed between upper and lower horizontal steel plates adjacent to each other. The shock absorbing mechanism includes an upper plate mounted on the lower surface of the upper horizontal steel plate. The connecting piece and two dampers symmetrically distributed on both sides of the central axis M of the upper connecting piece, the lower end of the upper connecting piece is equipped with a connecting rod swing group through the swinging piece, and one end of the two dampers is hinged with the central axis M as the axis of symmetry Installed at the lower end of the connecting rod swing group, the lower end of the connecting rod swing group is fixedly installed on the lower horizontal steel plate, the upper end of the swing member is hingedly installed on the upper connecting piece, and the other ends of the two dampers are hingedly installed on the corresponding side of the swing member The lower end of the damping mechanism with a symmetrical structure of the present invention improves the sensitivity of the damper to the stress change caused by the horizontal small distance displacement between the upper and lower steel plates through the cooperation of the swing member and the connecting rod swing group, and prolongs the service life of the device.

Description

technical field [0001] The invention relates to the technical field of anti-seismic equipment, in particular to a shock absorbing device applied to a concrete frame structure. Background technique [0002] With the rapid development of urbanization, the urban population density has increased greatly, and the frequent occurrence of earthquake disasters has caused a huge threat to my country's economic development and people's life safety. In order to reduce the impact of earthquake disasters on building structures, since the 1970s, people have gradually transferred dampers to structural projects such as buildings, bridges, and railways, and used dampers to absorb unpredictable earthquake energy. [0003] As is common, dampers are applied to joints of horizontal steel frames and vertical steel frames of reinforced concrete frame structures to slow down the stress generated at the joints by vibration. However, the more concentrated seismic waves act on the nodes, which can eas...

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Problems solved by technology

However, the more concentrated seismic waves act on the nodes, which can easily lead to the collapse of the frame structure nodes, and if the damping structure is considered to be scattered on the steel frame structure other than the frame structure nodes to disperse the seismic waves acting on the nodes, and because During the earthquake, the movement distance of the upper steel plate relative to the lower steel plate is usually very small (generally within 10 mm), and the existing devices usually directly connect the upper and lower ends of the damper between the upper and lower horizontal steel plates. The damper set in this way needs to be large enough; on the other hand, the damper is not sensitive to the change of the horizontal stress caused by the displacement of the small distance between the horizontal plates

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