Simplified methodology for the seismic assessment of school buildings type UC
Keywords:
School buildings, Short column, Shear failure, Maximum interstory driftAbstract
This paper presents a simplified methodology for the seismic assessment of urban school buildings whose structural system is based on reinforced concrete frames, clasified as type UC.
The methodology is founded in the response, in terms of the maximum lateral displacement,
of an equivalent single-degree-of-freedom system whose behavior is described by an idealized
trilinear envelope. The trilinear envelope includes a post-peak negative slope that represents
the possible collapse mechanism associated to the shear failure of reinforced concrete captive
columns at the ground floor. The introduced methodology allows an estimation of the interstorey
drift at the first storey, IDR1, and the interstorey drift at the captive columns, IDRc, which can
be used to estimate their damage state through fragility functions.
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