Buckling constrained tilt damping column

Abstract

The invention belongs to the technical field of structural engineering technique, more particularly relates to a flexure restriction stepping shock-absorption strut that consists of a flexure restriction strut, a lower sleeve, an upper sleeve, a wing plate and a girder, wherein, the lower sleeve is a columnar structure with a hollow middle part, the circumference of one end of the lower sleeve is provided with the wing plate and the other end thereof is sleeved at the bottom end of the flexure restriction strut, and the lower sleeve is fixed at one end of the flexure restriction strut by a bolt and the wing plate is fixed above a base by the bolt; the upper sleeve is a columnar structure with a hollow middle part, the circumference of one end of the upper sleeve is provided with a node plate, the upper sleeve is sleeved at the strut top of the flexure restriction strut and is fixed at the strut foot of the flexure restriction strut by the bolt and the node plate is fixed below the girder by the bolt. The invention has the advantages of no residual deformation and small shock effect and so on, and has excellent shock resistance performance and ductility and hysteresis energy consumption capability, thereby being a predominant shock-absorption energy consumption member.

Description

technical field [0001] The invention belongs to the technical field of structural engineering, and in particular relates to a buckling-constrained seesaw shock-absorbing column. Background technique [0002] Rocking shock absorption is a very novel shock absorption design concept. In the traditional seismic design concept, the upper structure is fastened to the lower foundation, the structure cannot be separated from the foundation, and the seismic force mainly depends on the lateral force-resistant members (supports, shear walls, etc.) to resist. The traditional seismic isolation technology reduces the energy input of the earthquake to the upper floors by setting a seismic isolation device with a small lateral stiffness but a large deformation capacity in a certain floor of the building, thereby reducing the seismic response of the upper floors. [0003] The seismic response of the rocking structure is basically the same as that of conventional structures under small and m...

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Problems solved by technology

[0004] At present, Japan's Zhuzhong Gongwudian has applied the rocking shock absorption technology to the building structure, and adopted the "bolt type" rocking shock absorbing support, but this kind of support does not adopt energy consumption measures, so it needs to be further improved

A bridge in New Zealand also uses a lift-type rocking damping bearing placed at the bottom of the pier for shock absorption, but there is still a long way to go for the application of this rocking damping bearing in building structures

Some scholars in the United States use buckling-constrained supports to improve bridge piers, but placing buckling-constrained supports on the outside of bridge piers does not meet the aesthetic requirements of the building and needs to be improved

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