Large scale shaking table test on modal responses of 3-D piping system with friction support
- Iwaki Meisei Univ., Iwaki, Fukushima (Japan). Dept. of Mechanical Engineering
- Tokyo Metropolitan Univ., Hachioji, Tokyo (Japan). Dept. of Mechanical Engineering
- National Research Inst. for Earth Science and Disaster Prevention, Tsukuba, Ibaraki (Japan)
- Ishikawajima-Harima Heavy Industries Co., Yokohama, Kanagawa (Japan)
Friction between pipe and supporting structure is generally known to reduce seismic responses of the piping system. Vibration tests using large-scale piping model of three dimensional configuration with friction support were carried out to evaluate reduction effect of piping response. The piping responses were governed by the first and the second mode of vibration. The test data of load and velocity via displacement showed that the mathematical model of friction in plane motion was reasonably described by f = {minus}{mu}N{nu}/{vert_bar}{nu}{vert_bar}, and was applicable to evaluate the response of the piping with friction support. A seismic response analysis procedure of the piping system with friction was developed by an approximate modal analysis and confirmed to be adequate to evaluate the piping response by comparing simulated results and test results, and consequently, response reduction effect due to friction was evaluated.
- OSTI ID:
- 404351
- Report Number(s):
- CONF-960706--; ISBN 0-7918-1787-3
- Country of Publication:
- United States
- Language:
- English
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