Seismic design of an elevated water tank in Costa Rica

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Title: Seismic design of an elevated water tank in Costa Rica

Author(s): Martínez Salcedo, J.; del Río Rodríguez, S.

Publication: ACHE

Volume: 68

Issue: 281

Appears on pages(s): 31 - 43

Keywords: Self-centering system, Rocking system, Displacement-based seismic design, Steel dissipators, Non-lineal time history analysis

Date: 1/1/2017

Abstract:
The structural system considered for the tank is based on a 'flag' hysteresis curve, and as a result is self-centering, allowing us to clearly limit the shear and also the bending moment that due to seismic action we have on the tower and its foundations. A clear optimization is so possible in relation to a more typical structural design. Steel dissipators with 'hourglass' geometry provide additional damping and would be the only elements to be changed after a significant quake.


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