Novel three-dimensional shock isolation device with large vertical static rigidity

Abstract

The invention relates to the technical field of constructional engineering and bridge engineering shock isolation, in particular to a novel three-dimensional shock isolation device with large vertical static rigidity. The novel three-dimensional shock isolation device comprises a horizontal shock isolating component, a transition steel structure platform and a vertical shock isolating component. The horizontal shock isolating component and the vertical shock isolating component are arranged at the top and bottom of the transition steel structure platform respectively. A vertical damping element and a vertical static support are further included and both arranged at the bottom of the transition steel structure platform, and are parallel to the vertical shock isolating component. The device can achieve the shock isolating function both in the horizontal direction and in the vertical direction, horizontal shock isolation and vertical shock isolation are decoupled and do not implicate each other, and high safety is achieved. The vertical damping component can further relieve the vertical geological process through energy dissipation, the vertical static support can provide large vertical static compression resistance rigidity, meanwhile, certain tensile strength can be provided during a vertical earthquake, the safety of the upper structure is guaranteed, manufacturing is easy and convenient, and construction, mounting and maintenance are convenient.

Description

technical field [0001] The invention relates to the field of construction engineering and bridge engineering seismic isolation technology, in particular to a novel three-dimensional seismic isolation device with relatively large vertical static stiffness. Background technique [0002] Laminated rubber isolation technology plays an important role in alleviating the damage caused by horizontal earthquakes to buildings and bridge structures. It has good horizontal deformation capacity and energy dissipation effect, and can effectively isolate buildings and bridges in isolation layers. The damage to buildings and bridges caused by the horizontal vibration of earthquakes has been well tested in many actual earthquakes in recent years. However, the disadvantage of the laminated rubber isolation bearing is that it does not have the function of shock absorption in the vertical direction. From the seismic records measured in previous major earthquakes, the vertical earthquake occupie...

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Problems solved by technology

However, the disadvantage of the laminated rubber isolation bearing is that it does not have the function of shock absorption in the vertical direction. From the seismic records measured in previous major earthquakes, the vertical earthquake occupies a lot of weight in the entire seismic energy. How to solve the problem of vertical vibration? Seismic isolation in the vertical direction, especially in the field of vertical seismic isolation for some very important buildings, bridges and important equipment and equipment, has always been a major problem that plagues the entire seismic isolation field.

[0003] If the vertical seismic isolation needs a better seismic isolation effect, a smaller vertical dynamic stiffness is required, but for the larger weight of the upper part of the support, for the sake of safety, a larger vertical static stiffness is generally required. As far as the three-dimensional seismic isolation bearing is concerned, the vertical seismic isolation bearing presents a relatively contradictory concept, which requires both a large vertical static stiffness and a small vertical dynamic stiffness. How to solve this problem has become a three-dimensional An important bottleneck in the development of seismic isolation bearings

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