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Título del libro: 11th National Conference On Earthquake Engineering 2018, Ncee 2018: Integrating Science, Engineering, And Policy
Título del capítulo: Multihazard risk assessment (seismic and wind) for buildings with dampers in Mexico city

Autores UNAM:
SONIA ELDA RUIZ GOMEZ;
Autores externos:

Idioma:

Año de publicación:
2018
Palabras clave:

Buildings; Earthquake engineering; Earthquakes; Engineering geology; Structural analysis; Energy dissipating; Floor accelerations; Fluid viscous dampers; Fragility function; Interstory drifts; Non-linear fluids; Structural damages; Supplemental damping; Risk assessment


Resumen:

A framework for multi-hazard risk assessment (considering earthquake and wind actions) is presented. It is illustrated by the analysis of a 28-story building with a large area exposed to wind. The building is designed in two alternative ways: A) conventionally (without supplemental damping), and b) using non-linear fluid viscous devices. Both buildings are subjected to wind and earthquake forces acting independently. In the first place, fragility functions (corresponding to wind and, alternatively, to earthquake actions) are calculated. The curves are associated with different structural damage levels, which correspond to: A) the maximum inter-story drift, for the case of earthquake action, and b) the maximum floor acceleration for the case of wind action. Results show that there is an important reduction in the annual exceedance rate of the structural demands corresponding to different damage states for the building with fluid viscous dampers with respect to that associated to the building without energy dissipating devices. The reduction is bigger for wind than for earthquake actions, for the structures analyzed. © 2018 All rights reserved.


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