A vertical cooperative vibration isolation/shock reduction device and its application method

Abstract

The invention provides a vertical coordinated vibration isolation or reduction device and an application method thereof. The device comprises an upper support and a lower steel plate which are horizontally arranged, a spiral spring which is vertically clamped between the upper support and the lower steel plate and a combined viscous-elastic cylinder damper which is coaxially installed in the spiral spring; the upper support comprises a circumferential side wing plate and a support top board and a support base board which are respectively fixed at an upper end and a lower end of the side wing plate; the combined viscous-elastic cylinder damper comprises an inner sleeve and an outer sleeve which are coaxially arranged and a viscous-elastic damping layer which is between the inner sleeve andthe outer sleeve by high temperature vulcanization; the combined viscous-elastic cylinder damper passes through and is fixed on the support base plate through a bolt at the top of the inner sleeve; abottom of the outer sleeve is fixed on the lower steel plate. Based on the spring vibration isolation system, the invention adopts a viscous-elastic damping material to increase the energy consumptionability of the device system with large damping ratio, stable performance, good sealing property and suitable for engineering application, and designs a complete spring damping cooperative working system suitable for vertical load-bearing structure to withstand vertical excitation, which plays an excellent role in vibration isolation and vibration reduction.

Description

technical field [0001] The invention relates to a structure vibration control device, in particular to a vertical vibration isolation / shock reduction device. Background technique [0002] Structural vibration control is a new type of anti-vibration / seismic measure, which consumes or isolates vibration / vibration energy by setting vibration reduction / vibration / vibration / vibration / seismic devices in the structure, or applies external energy to counteract the impact of external excitation on the structure. The role of structure. In the field of building vibration control, vertical vibration isolation has always been a difficult problem to solve. In design codes, for long-span structures, important building facilities, and structures with irregular shapes, vertical seismic action must be considered. At the same time, the traffic load generated by urban rail transit is mainly based on continuous vertical dynamic excitation, which has a non-negligible vibration impact on adjacent...

AI Technical Summary

Problems solved by technology

Viscoelastic materials provide a new idea for increasing the energy dissipation capacity of spring vibration isolation systems, and solve the problem of poor sealing performance of viscous damping and unstable performance. Load (such as building self-weight, etc.), viscoelastic materials under static load for a long time will easily lead to tearing and falling off, affecting structural performance

Most of the devices fail to consider the adverse effects of the static displacement generated by the static load of the building on the deformation of the viscoelastic material under the actual working condition, or the design is too complicated even though the actual situation is considered

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