Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Development and experimental verification of self-centering disc slit damper for buildings
Abstract The damage avoidance design (DAD) philosophy is oriented towards the low-damage design of building structures compared to the previous conventional ductile design. Low-damage structures with supplemental damping and self-centering ability are one of the main aspects of the DAD philosophy to decrease irreparable damage and enhance the seismic performance of structures. This research proposes an efficient, double-acting self-centering hysteretic damper by combining the widely used steel slit dampers and prestressed disc springs for building structures. The proposed seismic protection device is called Self-Centering Disc Slit Damper (SC-DSD), which consists of two square standard hollow steel sections, nested together with an assembly of prestressed disc springs within the steel sections. The performance of SC-DSD is assessed experimentally through a static cyclic loading test to evaluate the global system's dissipation capacity, self-centering ability, and hysteresis loop. A simplified numerical model is developed to predict the self-centering force-displacement relationship of the proposed device. Finally, the seismic force bearing capacity of the proposed damper is compared with the conventional slit damper.
Highlights This study develops a self-centering metallic yielding damper with the combination of a steel slit damper and disc springs. Self-centering mechanism of the proposed damper is developed, and theoretical formulation was derived. Simplified analytical model was developed to predict the self-centering behavior of the damper. A cyclic Loading experiment was performed on the proposed device to verify the self-centering capability of the device and to estimate the parameters of the analytical model. Bearing capacity of the self-centering disc slit damper was compared with the conventional slit damper.
Development and experimental verification of self-centering disc slit damper for buildings
Abstract The damage avoidance design (DAD) philosophy is oriented towards the low-damage design of building structures compared to the previous conventional ductile design. Low-damage structures with supplemental damping and self-centering ability are one of the main aspects of the DAD philosophy to decrease irreparable damage and enhance the seismic performance of structures. This research proposes an efficient, double-acting self-centering hysteretic damper by combining the widely used steel slit dampers and prestressed disc springs for building structures. The proposed seismic protection device is called Self-Centering Disc Slit Damper (SC-DSD), which consists of two square standard hollow steel sections, nested together with an assembly of prestressed disc springs within the steel sections. The performance of SC-DSD is assessed experimentally through a static cyclic loading test to evaluate the global system's dissipation capacity, self-centering ability, and hysteresis loop. A simplified numerical model is developed to predict the self-centering force-displacement relationship of the proposed device. Finally, the seismic force bearing capacity of the proposed damper is compared with the conventional slit damper.
Highlights This study develops a self-centering metallic yielding damper with the combination of a steel slit damper and disc springs. Self-centering mechanism of the proposed damper is developed, and theoretical formulation was derived. Simplified analytical model was developed to predict the self-centering behavior of the damper. A cyclic Loading experiment was performed on the proposed device to verify the self-centering capability of the device and to estimate the parameters of the analytical model. Bearing capacity of the self-centering disc slit damper was compared with the conventional slit damper.
Development and experimental verification of self-centering disc slit damper for buildings
Naeem, Asad (Autor:in) / Maida, Yusuke (Autor:in) / Koichi, Kusunoki (Autor:in) / Javidan, Mohammad Mahdi (Autor:in)
26.12.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Development and experimental validation of a new self-centering HF2V damper with disc springs
| Springer Verlag | 2022