Performance Verification of Low-cost and Compact Seismometer and Its Application to Earthquake Motion Observation of Detached House

Abstract

In order to investigate behaviors of buildings during earthquake due to accumulate observation data, low-cost seismometers are produced and checked. Using data by shaking table test results and observed earthquake motions, the accuracy verification of low-cost seismometer is conducted through comparison with servo-type seismometer. The low-cost seismometers were installed in a detached house and earthquake motions have been observed since about three years ago. In these periods, many earthquake motions have been obtained to discuss characteristics of the earthquake motions at the site and characteristics of dynamic behavior of the detached house. The low-cost seismometer has been operational for about four years since the low-cost seismometer was produced. From the result, it is confirmed that the low-cost seismometer has enough durability.

Research and Development of Vibration Control Device Suitable for Detached Houses by Using Displacement Amplification Mechanism (Fundamental Characteristic and Vibration Control Performance of Pipe-Type-Damper)

“…Bi-linear+Slip model shown in Fig. 13 was used as restoring force characteristic of the structure, and the parameter of structural model are shown in Table 1 and Table 2 (4) . From the result of eigenvalue analysis, the first natural frequency of the structural model is 3.40 Hz, and the second natural frequency is 9.90 Hz.…”