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A platform for research: civil engineering, architecture and urbanism
Substructured Pseudodynamic and Cyclic Tests on a Seismic Protection System including Steel-Teflon Bearings and Fluid Viscous Devices
An experimental investigation was carried out on a base isolation system incorporating stainless steel-Teflon bearings, operating as sliders, and silicone fluid viscous spring-dampers. In this system, the dampers are connected to the base-floor of the isolated building to provide the desired passive control of superstructure response, as well as to guarantee its complete re-centring after termination of a seismic action. Two types of experiments were conducted: sinusoidal and random cyclic tests, and a pseudodynamic test in “substructured” configuration. The cyclic tests were aimed at characterising the hysteretic response of the spring-dampers, the frictional behaviour of the steel-Teflon bearings, and the combined response of their assembly. The pseudodynamic test simulated the installation of the protection system at the base of a three-story steel frame structure. The results of the performed tests, as well as of relevant mechanical interpretation and numerical simulation analyses, are presented in this paper. Keywords: pseudodynamic tests; substructuring; cyclic tests; seismic protection; sliding bearings; fluid viscous devices; base isolation; supplemental damping. ; JRC.G.5-European laboratory for structural assessment
Substructured Pseudodynamic and Cyclic Tests on a Seismic Protection System including Steel-Teflon Bearings and Fluid Viscous Devices
An experimental investigation was carried out on a base isolation system incorporating stainless steel-Teflon bearings, operating as sliders, and silicone fluid viscous spring-dampers. In this system, the dampers are connected to the base-floor of the isolated building to provide the desired passive control of superstructure response, as well as to guarantee its complete re-centring after termination of a seismic action. Two types of experiments were conducted: sinusoidal and random cyclic tests, and a pseudodynamic test in “substructured” configuration. The cyclic tests were aimed at characterising the hysteretic response of the spring-dampers, the frictional behaviour of the steel-Teflon bearings, and the combined response of their assembly. The pseudodynamic test simulated the installation of the protection system at the base of a three-story steel frame structure. The results of the performed tests, as well as of relevant mechanical interpretation and numerical simulation analyses, are presented in this paper. Keywords: pseudodynamic tests; substructuring; cyclic tests; seismic protection; sliding bearings; fluid viscous devices; base isolation; supplemental damping. ; JRC.G.5-European laboratory for structural assessment
Substructured Pseudodynamic and Cyclic Tests on a Seismic Protection System including Steel-Teflon Bearings and Fluid Viscous Devices
SORACE Stefano (author) / TERENZI Gloria (author) / MAGONETTE GEORGES (author) / MOLINA RUIZ FRANCISCO JAVIER (author)
2007-01-11
Miscellaneous
Electronic Resource
English
DDC:
621
Substructured Pseudodynamic Tests on High-damping Rubber Isolators
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