Experimental and theoretical analysis of novel telescopic devices for earthquake protection
Keywords:
telescopic devices, earthquake protection, hysteretic behaviour, building seismic response, dissipative bracingAbstract
The telescopic SERB devices are compact mechanical devices designed for bracing isolation systems. These devices can provide important dissipation of the seismic energy and can generate the necessary force to prevent the building collapse for large load conditions as well as to revert the structure to the initial position. They have hysteretic properties with controlled elasticity and damping characteristics of hysteretic type. The efficiency of seismic protection is analyzed by using models to portray the hysteretic behaviour of devices used for bracing systems. Analytical methods are developed for fitting the mathematical models to laboratory experimental data. The seismic response of structures is studied for various configurations of earthquake protection systems by using Matlab-Simulink software. The time histories of seismic response can be visualized in real time on multi-channels virtual oscilloscopes. Through virtual analysis, the seismic protection system can be optimally configured as to accomplish both the building structural safety and minimization of system implementation cost.
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