Vertical vibration isolation bearing for building

Abstract

The invention discloses a vertical vibration isolation bearing for a building. The vertical vibration isolation bearing for the building comprises supporting seats and inhaul cables, wherein the supporting seats are arranged in parallel on the upper and lower sides, a plurality of vertical vibration isolation supporting units arranged in array are arranged in middle gaps of the supporting seats, and the inhaul cables are arranged at the edge position for connecting the supporting seats on the upper and lower sides. The vertical vibration isolation supporting units comprise steel pipes, connecting plates, sandwich steel plates and vibration isolation layers, wherein the steel pipes are vertically arranged at the center position, and the connecting plates, the sandwich steel plates and the vibration isolation layers are arranged in parallel around the steel pipes. The connecting plates are located on the upper and lower sides and in contact with the supporting seats, and the sandwich steel plates and the vibration isolation layers are arranged at intervals alternately in middle gaps formed by the connecting plates on both sides. According to the vertical vibration isolation bearing for the building, on the premise of meeting the requirements of vertical bearing of the structure, the limit of horizontal displacement to the vibration isolation bearing is strengthened.

Description

technical field [0001] The invention belongs to the field of building vibration isolation structures, in particular to a vertical vibration isolation support for buildings. Background technique [0002] Building isolation technology is to reduce the transmission of horizontal seismic energy to the upper structure by prolonging the period of the building structure and giving the structure greater damping, so that the acceleration response of the upper structure is reduced. At the same time, the large displacement of the structure is borne by the seismic isolation layer, and the upper structure moves close to translation during the earthquake, which greatly improves the safety of the upper structure. Seismic isolation technology is an advanced and effective building structure anti-seismic technology that has been tested by many major earthquakes. It can not only ensure the safety of building structures, but also ensure the functions of internal non-structural components. [0...

AI Technical Summary

Problems solved by technology

However, the vertical stiffness of ordinary rubber and lead-core rubber vibration-isolation bearings often reaches 1000-4000 times the horizontal equivalent stiffness. This type of bearing has excellent horizontal isolation performance, but it cannot take into account vertical vibration isolation

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