Annular cylindrical tuned liquid damper for controlling vibration of long boom of long-span bridge, and design method

Abstract

The invention discloses an annular cylindrical tuned liquid damper for controlling vibration of a long boom of a long-span bridge, and a design method, and belongs to the technical field of engineering structure vibration control. A box body bracket is mounted in a central point of a to-be-controlled boom, and then two split box bodies are spliced and mounted on the box body bracket; and accordingto a set height, a damping liquid is added into a damper box body, and a top cover on the upper side is closed to prevent the liquid from being splashed or volatilized. The liquid in the box body shakes for consuming energy and applying a lateral force to a barrel wall, thereby realizing control on a power response of the boom. A calculation method for specific parameters of the annular cylindrical tuned liquid damper is given in the patent; and the damper has the advantages of good shock absorption effect, low mounting and repair costs, convenient repair, easy tuning and the like, and is ofpositive significance for prolonging the service life of the boom and guaranteeing safe service of the boom.

Description

technical field [0001] The invention belongs to the technical field of vibration control of engineering structures, specifically the field of structural passive control based on a tuned liquid damper, and its specific application is to realize the vibration reduction of long-span bridges such as suspension bridges or arch bridge suspenders. Background technique [0002] In recent years, my country's traffic engineering construction has developed rapidly, and bridge construction, which is an important part of it, has also developed rapidly. A large number of long-span bridges with novel structures, complex technologies, difficult design and construction, and high technological content have been built one after another, marking the The level of bridge construction in our country has been among the advanced ranks in the world. Long-span bridges play a key role in the traffic road network, with high construction costs, generally long design service time, and generally harsh servi...

AI Technical Summary

Problems solved by technology

Long-span bridges play a key role in the traffic network, the construction cost is high, the design service time is generally long, and the service environment is generally harsh, so the safe service of this type of structure is the primary consideration and challenge in the design and use process

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