Innovative Systems for Seismic Protection of Precast Industrial Buildings

Abstract:

An innovative dissipative (INERD Pin) connection system, which was previously developed for seismic resistant X-braced steel frames, was applied to retrofit existing precast industrial buildings designed only for gravity loads. Nonlinear dynamic analyses were carried out and the effectiveness of the dissipative connection system was evaluated. The INERD Pin connection system increased both the deformation capacity and the stiffness of the buildings, reducing damage of the structural elements. In case of low seismic actions, the INERD Pin connection system especially enhanced the stiffness of the structure, causing only small reductions of column rotations and top displacements. In case of severe seismic actions, the addition of the dissipative connections showed all its effectiveness particularly for low rotation capacity at column base, increasing the energy dissipation capacity and reducing the displacements of the structure. The results of the numerical investigations demonstrated the possibility to reduce the seismic vulnerability of existing precast buildings by means of dissipative connection systems.

• Periodical: Applied Mechanics and Materials (Volume 274)
• Pages: 117-120
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.274.117
• Online since: January 2013
• Authors: Marco Valente
• Keywords: Dissipative Connections, Numerical Analysis, Precast Building, Seismic Protection

References

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