Frame structure assembly type vibration reduction component and vibration reduction method

Abstract

The invention belongs to the technical field of building vibration isolation, and discloses a frame structure assembly type vibration reduction component and a vibration reduction method, and the frame structure assembly type vibration reduction component is arranged at a beam-column joint gap position of a frame structure adjacent to a railway line. In the frame adjacent to the railway line, fabricated concrete building blocks are additionally arranged at the gap positions of beam-column joints, the component is fixed at the gap positions of the joints through expansion screws, cast-in-place and prefabrication can be performed in advance, and transmission of railway environment vibration to an upper floor can be effectively weakened due to increase of impedance after the component is additionally arranged; the vibration reduction component is made of concrete building blocks which are simple and common; and according to the action mechanism of the vibration reduction component, the proper floor is selected to arrange the vibration reduction component, and the railway environment vibration effect of the upper floor can be effectively reduced. According to actual requirements, another floor can be arranged below the floor needing further vibration reduction, so that the expected vibration reduction effect is achieved, and the additionally-installed floor is more flexible.

Description

technical field [0001] The invention belongs to the technical field of building vibration isolation, and in particular relates to an assembleable vibration-damping component of a frame structure and a vibration-damping method. Background technique [0002] The vibration isolation member is used to prevent vibration waves from propagating to the shielded area, thereby weakening the vibration of the shielded area. The principle of vibration isolation components is based on the reflection of waves. The running of the train will cause the vibration of the railway environment. The vibration of the railway environment propagates along the frame column to the upper floor in the form of vibration waves. When the vibration isolation member is installed in the frame structure, the cross-sectional area of ​​the column top is increased. According to the impedance formula of the column ( 1) It can be concluded that due to the cross-sectional area A of the column top w When the vibratio...

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Problems solved by technology

[0007] Through the above analysis, the problems and defects of the existing technology are: the existing vibration isolation components are not aimed at the vibration of the railway environment, the vibration damping effect is poor, the controlled structure cannot be effectively protected, and it is easy to bring adverse effects on the controlled structure

[0008] The difficulty in solving the above problems and defects is: according to the characteristics of the railway environmental vibration, take blocking measures from the internal way of the transmission of the frame structure railway environmental vibration

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