Test And Disposal To The Harmful Vibration Of The Factory Buildings

As the affects of the equipment vibration, the harmful vibration of the industry factory buildings is caused frequently. The vibration makes the crack of the structure appear. This effects the duration of the structure and the production in the factory, and it even causes the structure destroyed. This is a very important problem in the industry factory buildings. We should pay highly attention to it. For some newly erected factory buildings, the harmful vibration may not occurred. But as the time goes on, the age and the reliability of the structure is reduced, the dynamics character of the structure will also be changed; thereby the harmful vibration of the structure will occurred. In addition, as the technological process of the factory is changed, the equipment is replaced and the disturber from outside occurred, the vibration also can be caused in the factory building. The vibration of the factory building is difficult to be avoided completely. It is very important to reduce the unnecessary vibration and control it in the admissible range.A tower building for coal handling engineering is as an example studied in this article. By theoretical analyses and the vibration tests on this building, its dynamics character is throatily analyzed. The building vibrates observers when the motor begin to run. This will effect the production and the mood of the workers in the factory buildings. The beam-slab structure is strengthening without the scientific researched, but the harmful vibration problem is not good resolved. Using the scientific equipment the three dimensions vibration characters of the building can be measured and analysis. When comparing the results of tests and theoretical analysis, it is discovered that the harmful vibration caused by the vertical vibration frequency of the motor is approaches to the floor slab' s, which is caused by resonance and the evident vibration of the floor. The horizontal vibration is not very strong, but when it works together with the vertical vibration, it will be strengthen. According to the really situation, the vibration may be disappeared when the motor frequency be changed far away from frequency of the buildings floor and shock absorption are adopted. As well as the noise is largely reduced, it can bring a good environment to the workers and better economic benefit is emerged.Every harmful vibration has its character. We should handle it respectively on choosingequipment, arranging the measure dots, collecting data and deducing the vibration. Not according to the feeling and experience only, we should respect science, regard finding reason as basis and taking measure as key. The better economic benefits can achieved with the clear reason, economic, reasonable and scientific attitude. It brings benefit and good experience by testing and disposing the harmful vibration of the factory building.