A method for controlling parasitic vibration of existing building structures

Abstract

The invention discloses a parasitic vibration control method of an existing building structure. The parasitic vibration control method comprises the following steps: carrying out a vibration test on the existing building structure to determine a structure part needing to be subjected to vibration control, wherein the structure part needing to be subjected to the vibration control comprises a foundation, a bottom plate and a component of the building structure and internal process equipment; and under the condition of keeping the existing building structure basically unchanged, carrying out extension treatment on the structure part needing to be subjected to the vibration control, so as to realize parasitic vibration control. Based on a parasitic property, properties of the existing building structure, mechanics and the internal process equipment are basically kept, and the vibration control is carried out on the basis of the extension treatment, so that a vibration control measure and a vibration control device are matched with and adaptive to the existing building structure very well and are finally parasitized on the existing building structure; and meanwhile, the aim of carrying out efficient vibration isolation, vibration absorption or vibration control on an existing building is realized.

Description

technical field [0001] The invention relates to the technical field of vibration control of building structures, in particular to a method for controlling parasitic vibration of existing building structures. Background technique [0002] For existing building structures, including industrial and civil buildings and construction (building) construction projects, when the vibration level exceeds the standard or the harmful vibration seriously affects the use of the building structure, vibration isolation, vibration reduction or vibration control measures must be taken. However, at present, vibration control measures or vibration strengthening and transformation methods require a large degree of demolition, reinforcement and transformation of existing building structures, which have the following disadvantages: [0003] 1) The existing building structure is greatly disturbed, which is not conducive to the maintenance of the original structure function: due to the need to demoli...

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Problems solved by technology

[0003] 1) The existing building structure is greatly disturbed, which is not conducive to the maintenance of the original structure function: due to the need to demolish, reinforce and renovate the existing building structure, the original function of the building will inevitably be reduced, weakened or even invalidated, which is not conducive to the continuation of the existing building function To play, there is a situation where one loses sight of another;

[0004] 2) The economic cost is huge, and it is easy to cause life and property threats: Since the structural and mechanical characteristics of the existing building structure and the technical characteristics of the internal equipment have been formed, if there is a huge disturbance to the building structure, vibration isolation, Vibration reduction and vibration control measures are costly in design, construction, and management, resulting in huge economic waste. At the same time, they will also affect the personnel, equipment, and other supporting facilities in the building, causing hidden dangers to life and property;

[0005] 3) The vibration control effect of the disturbed building structure is often unsatisfactory: after disturbing the existing building structure, the original structure's quality, stiffness, natural vibration frequency and other natural vibration characteristics will change greatly from the original design. Basically, the effect of vibration isolation, vibration reduction and vibration control is often not up to the ideal standard, and it may even cause negative effects of vibration control force acting on the building structure.

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