Chiaki Yasuda

Computation of Input Energy to Test Structure on Shaking Table Test

In case of destruction test on shaking table, the energy, dissipated in the process of collapse, could be employed as one of indexes to grasp the test structure strength. In general, for the vibration systems, internal dissipated energies are equal to externally supplied energies. Considering the shaking table and test structure as one vibration system, the input energy generated by actuators of shaking table can be used to estimate the dissipated energy during collapse of the test structure. This paper describes followings. (1) Derive computation method of dissipated energy based on information of shaking table system. (2) Show validity of computation method Results of numerical simulation employing shaking table simulator.Copyright

Development of Numerical Dynamic Simulators for 3-D Full Scale Earthquake Testing Facility (Phase-2)

The largest 3-dimensional vibration test facility is planning to build in Hyogo pref. The objectives of this facility are to investigate the process of the collapsing phenomena of a full-scale structure under the earthquake. At the design stage, it’s impossible to make sure the performance without the numerical simulation. Therefore, the mathematical simulation model was accurately constructed, and the simulation was performed. This paper describes as follows. (1) The modeling method of the 3-dimensional vibration test system. (2) The verification of the modeling method based on the measured data by using the prototype test facilities. (3) The verification results based on the condition of a collapsing phenomena of the full-scale building.© 2002 ASME