The steel bar grating needs to adopt a multi-layer steel grid structure, which can reduce the area of storage land, so what is the reason for the vibration? Next, we will explain in detail the reasons for the vibration of the steel grating.
Cause of vibration
Due to the needs of the process, the floor needs to have a larger hole. In order to reduce the dust load on the floor, steel grids are often laid, resulting in a lower bending resistance of the floor, which causes the sound of the floor vibration frequency. In addition, the laid steel grating has a low natural frequency. Even if the steel beam and vibration equipment can avoid resonance, the resonance will be transmitted to the steel grating, and the vibration response will be amplified.
Precaution
1. The vibration frequency of the equipment can be adjusted, so that the working frequency of the equipment can avoid the natural vibration frequency of the floor, and the speed of the machine can be adjusted by the method of speed adjustment shock. In this way, the purpose of reducing the operating frequency of the vibrating device can be achieved. However, the side effect is to affect the production efficiency of the equipment. Therefore, this method is not recommended.
2. Increase the rigidity of the steel grating floor. In this way, the rotational frequency of the equipment falls within the resonance front region of the structural construction. There are many ways to increase floor stiffness. The method of adding girders to the existing structure can reduce the calculated span of the slab. On the basis of the original floor structure, concrete gravel and steel mesh are added, which can further increase the rigidity of the floor.
3. Take vibration isolation measures for the equipment, that is, install rubber or spring vibration isolators between the machine base and the supporting structure, which will reduce the sound of many vibration frequencies.
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