The development of energy-absorbing devices for aseismic base isolation systems
Abstract
The behavior of mild steel energy-absorbing devices is considered for earthquake isolation systems. The devices are rigid under service-type loading, but yield and absorb energy under large earthquake-type loading. The devices were shown to have substantial hysteretic energy absorbing capacity over a useful life in excess of 300 cycles, far exceeding any load duration which can be expected from earthquake loadings. The hystersis loops developed by sinusoidal loading of the devices effectively bounded the loops obtained by the random loading of the devices.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- January 1978
- Bibcode:
- 1978STIN...7913208K
- Keywords:
-
- Absorbers (Materials);
- Dampers;
- Earthquake Resistant Structures;
- Energy Absorption;
- Isolators;
- Loads (Forces);
- Test Equipment;
- Engineering (General)