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Tecnia
versión impresa ISSN 0375-7765versión On-line ISSN 2309-0413
Resumen
SANCHEZ MEZA, Roque A.. A proposal for maximum seismic floor acceleration using peruvian code e.030. Tecnia [online]. 2022, vol.32, n.2, pp.47-58. ISSN 0375-7765. http://dx.doi.org/10.21754/tecnia.v32i2.1401.
The collapse of some floor diaphragms during earthquakes was due to failures in connection with vertical elements or because those were not designed for seismic forces in its plane. This resulted in the inclusion of diaphragm design considerations in many seismic codes. For its design, it is necessary the estimation of the maximum acceleration on each floor during a strong seismic event. The Peruvian seismic code, E.030, does not include any methodology about the calculation those accelerations and it only refers those due to maximum base shear, that might not correspond to the maximum accelerations in each level. In this paper, a simplified procedure for obtaining the maximum floor accelerations is shown. This procedure is based on the First Mode Reduced method1 to which a factor rW was included to consider higher modes participation in dual systems (frames / walls). The rW factor corresponds to the ratio of base moments in walls and the building under analysis. In the validation of the procedure, it was observed that the proposed procedure agrees with the results of experimental and analytical models.
Palabras clave : Acceleration on floor; Seismic design; Dual system; first mode reduced; E.030.