The experimental study on fatigue characteristics of steel damper used for seismic isolation device

Book · Fri Dec 01 04:00:00 EST 1995

OSTI ID:129041

Moteki, M; Ohtsuka, S; Hayakawa, K; Nakae, A; Noguchi, S ^[1]; Sugisawa, M; Hasegawa, H ^[2]

---

1. Okumura Corp., Ibaraki (Japan). Technical Research Inst.
2. Nippon Steel Corp., Chiba (Japan). Technical Development Building Construction Division

When a natural rubber bearing is adopted in a seismic isolation system, a damper system is necessary to absorb vibration energy of earthquakes. An elasto-plastic damper consisting of four spiral steel bars has been developed and applied to about ten seismic isolation buildings. Sufficient experiments and analysis have been conducted to qualify the damper for actual applications in seismically isolated buildings. However, the fatigue characteristics of the product have not been fully demonstrated. Therefore, the authors carried out an experimental study to evaluate static or dynamic characteristics including fatigue characteristics of the damper.

• OSTI ID: 129041
• Report Number(s): CONF-950740--; ISBN 0-7918-1325-8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
BUILDINGS
DESIGN
DYNAMIC LOADS
ELONGATION
ENERGY ABSORPTION
EXPERIMENTAL DATA
FATIGUE
HARDNESS
HYSTERESIS
MECHANICAL TESTS
SEISMIC ISOLATION
SHOCK ABSORBERS
STATIC LOADS
STEELS
YIELD STRENGTH