Abstract
This paper describes influence of support condition against bending eigenvalue. For comparison, rigid simple support and soft airspring support conditions were employed. As a result, results under simple support condition were affected by ground rigidity at test site, and rigid ground state is required to acuire good accuracy. But under airspring support condition accuracy is enough high even at soft ground condition. From the results we obtained, soft airspring support is suitable for measurement and evaluation of bending eigenvalue.
