Synergistic damping, shock-isolating mounts for increased speed locking force

Abstract

The invention relates to a synergistic damping and shock insulation support for increasing the speed locking force. The support comprises an upper seat plate, a middle seat plate and a low seat plate,wherein that bottom surface of the upper seat plate is an upper concave spherical surface, the top surface of the middle seat plate is a lower concave spherical surface, a spherical crown lin plate with convex spherical surface on both upper and lower surfaces is arranged between the upper seat plate and the middle seat plate, two front and rear piston rod baffle plates are arranged on both lateral sides of the middle seat plate, and a longitudinal piston-type speed locking device is arranged between the two piston rod baffle plates; A 3-shaped dam element is arranged on that lateral out sideof the speed locking device, wherein the fulcrum is fixed to the welding lug plate arranged on the lateral out side of the speed locking device, and the front and rear fulcrums are fixed to the frontand rear ends of the lateral sides of the lower seat plate. Based on the structure of the hyperboloid isolation bearing, the invention realizes the cooperative anti-seismic function of the bridge byadding a speed locking device, thereby realizing the oscillation, generating the damping and isolation functions, and through the elastic-plastic damping element, the speed locking force is improved,and the cooperative anti-seismic function of the whole bridge is strengthened.

Description

technical field [0001] The invention relates to a bridge support, in particular to a synergistic shock absorption and shock isolation support for improving speed locking force. Background technique [0002] When constructing urban bridges, highway bridges or railway bridges in areas with high earthquake intensity, it is necessary to consider the design of shock absorption and isolation, change the previous way of hard resistance, and use softness to overcome rigidity, which can not only reduce costs, but also protect the safety of people's lives and property, and is conducive to the earthquake. The disaster relief channel is not blocked, and a quick response is carried out within the limited rescue time. The bridge support located between the bridge pier and the beam body has the function of transmitting vertical bearing capacity and horizontal bearing capacity, and can also have the function of shock absorption and isolation, such as high damping shock isolation rubber bear...

AI Technical Summary

Problems solved by technology

Structural defects cause bridge designers to follow blindly when selecting models, and choose back and forth between the two standards, which has a certain impact on bridge design

[0004] In some specific designs of friction pendulum shock-isolation bearings, bridge bearing designers add plane sliding to the lower part of the hyperboloid structure. The principle of friction pendulum shock-absorbing and isolating bearings for highway bridges is the same; some manufacturers even add composite materials to the conventional displacement stroke in the standard structure, relying on its stiffness, please do not exist in the empty stroke, but under the long-term temperature expansion and contraction, The stiffness of composite materials is prone to failure, which is contrary to the design idea of ​​clear bridge bearing force, and it cannot solve the existing problems, but the normal function is affected

[0005] At present, there are also individual hyperboloid friction pendulum structures that add a speed locker structure, but the size of the speed locker oil cylinder is huge, the stroke is limited, and the locking force provided at high speed is limited, which cannot meet the relatively stable locking function. , the shock isolation function is affected

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