Vibration isolating support saddle of self-adaptive double-spherical spring steel plate

Abstract

The invention relates to a vibration isolating support saddle of self-adaptive double-spherical spring steel plate in the field of building, bridge and aqueduct engineering, comprising an upper support saddle plate, a column upper sliding block, a column biconvex spherical lower sliding block, a sliding disc and a lower support saddle plate; the lower part of the upper support saddle plate is provided with a ring seal plate; the outer wall of the lower part of the upper support saddle plate is connected with the upper surface of the column upper sliding block; a bow spring steel plate elastic subassembly connected with the column upper sliding block is installed between the column upper sliding block on the outer wall of the lower part of the upper support saddle plate and the ring seal plate; the inner concave spherical surface of the column upper sliding block is connected with the upper convex spherical surface of the column biconvex spherical lower sliding block; the lower convex spherical surface of the column biconvex spherical lower sliding block is positioned in the concave spherical surface of the sliding disc; and the convex spherical surface of the sliding disc is positioned in the concave spherical surface of the lower support saddle plate. The support saddle has simple structure, large vertical bearing force, perfect durability and clear vibration isolating mechanism and is fit for buildings, bridges, aqueducts and other buildings with high requirement of vibration resistance property.

Description

technical field [0001] The invention relates to shock-absorbing and isolating support devices for buildings, bridges, aqueducts and other structures, in particular to self-adaptive double-spherical spring steel plate shock-isolating supports. Background technique [0002] When building buildings, bridges, aqueducts and other large structures in earthquake areas, in order to reduce the potential earthquake threat, it is necessary to carry out seismic design for such structures, among which, adopting seismic isolation design is one of the effective ways to reduce the earthquake damage of structures. Seismic technology is to reduce the basic frequency of the structure and prolong its vibration period by setting a seismic isolation layer with low stiffness between the bottom of the structure and the top surface of the foundation, so as to avoid the main energy frequency band of the earthquake and make the upper structure and the earthquake vibration It is isolated to reduce the ...

AI Technical Summary

Problems solved by technology

[0004] Due to the low vertical bearing capacity and poor durability of various rubber bearings, they cannot be used alone in long-span bridges with heavy superstructures and large structures.

[0005] The friction pendulum system has a good effect on small and medium-span bridges, but due to a single friction surface, its stiffness and damping characteristics cannot be changed during the movement of the support, and there is no self-adaption

Under strong earthquakes, the amplitude of horizontal displacement is limited, and it is difficult to ensure the large displacement of long-span bridge structures under strong earthquakes

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