Abstract
In order to avoid the negative effect of contact resonance caused by the vibration system consisting of the vibration damping spring (ground surface) and the mass (vibration pick-up) in ground-borne vibration measurements, the vibration pick-up is put on the hard ground surface. However, when it must measure on the soft ground, after removing dry soil and grass, it is necessary to fully tread on the ground surface. In addition, the mounting method using the vibration pick-up stand with quad-peg is recommended in “The Vibration Measurement Manual for Buildings” proposed by the Technical Subcommittee of Environmental Vibration Evaluation of the Institute of Noise Control Engineering of Japan. We verified that new single-peg type vibration pick-up stand was a practical and useful tool via comparison with quad-peg type vibration pick-up stand. Moreover, we verified that the suitable hardness treading on the ground surface was acquired from the support strength of ground surface.
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