Slide bar type tensile limiting-displacement vibration isolation support

Abstract

The invention discloses a slide bar type tensile limiting-displacement vibration isolation support which comprises a vibration isolation rubber pad, an upper steel sheet and a lower steel sheet. The upper steel sheet and the lower steel sheet are anchored to an upper structure and a lower structure. The slide bar type tensile limiting-displacement vibration isolation support is characterized in that the two sides or the periphery of the bottom of the upper steel plate are / is symmetrically provided with slide bars and tensile limiting-displacement mechanisms composed of pull rods and sleeves, wherein the pull rods are provided with sliding grooves; the slide bars are fixedly connected with the upper steel sheet, the sleeves are anchored to the lower structure through bases, and the slide bars are circular rod pieces arranged on a vertical plate; the sliding grooves are clamp grooves formed in one ends of the pull rods and matched with the slide bars, and the sliding grooves are formed in the slide bars in a sleeving mode and connected with the slide bars in a sliding mode. Compared with the prior art, the slide bar type tensile limiting-displacement vibration isolation support is simple in structure and high in horizontal shearing resistance and vertical tensile deformation resistance, the stability of the support is greatly improved, the problems of toppling and ultralimit of tensile stress of the vibration isolation support possibly generated by vibration isolation of a high-rise building are well solved, and the slide bar type tensile limiting-displacement vibration isolation support is especially suitable for application and popularization of laminated rubber vibration isolation supports of high-rise buildings in earthquake regions of high earthquake intensity.

Description

technical field [0001] The invention relates to the technical field of construction engineering shock isolation, in particular to a sliding bar type anti-tension and position-limiting shock-isolation support. Background technique [0002] The seismic isolation of construction projects is to extend the natural vibration period of the structure and reduce the input of horizontal seismic action, thereby reducing the seismic response of the upper structure and effectively improving the seismic performance of the structure to protect the safety of personnel and equipment inside the building. It is especially suitable for use in areas with good site conditions and high seismic intensity. In the existing seismic isolation system, the laminated rubber isolation bearing isolation system is mainly used to isolate the horizontal earthquake action, and has become the mainstream of the isolation system in the world. The use of seismic isolation technology can effectively reduce the seis...

AI Technical Summary

Problems solved by technology

However, due to the obvious structural overturning effect in high-rise buildings, the insufficient tensile performance of the laminated rubber bearings may easily lead to damage or even destruction of the rubber bearings during the overturning process, especially the current building design codes for the tension of the rubber bearings. The stress is limited, which affects the promotion and application of the prior art laminated rubber isolation bearings in high-rise buildings, and also limits the development of high-rise building projects in high-intensity earthquake areas

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