The observed damage level in field, due to the 1985 earthquakes, is compared in a 10-story RC building in Mexico City with the analytical predicted behavior without and with the available over-resistance effects. The results were compared to those obtained from the conventional seismic analysis and to the observed damage behavior after the earthquake. Facing the observed behavior in many buildings, the necessity of studying in detail the available over-resistance effects merged, in order to widely explain the seismic-resistance behavior participation of such structures. The over-resistance effects are included: slab steel, deformation hardening period of reinforcement steel, average real stresses of concrete and steel, compression slab participation and concrete confinement. Lineal and non-lineal step-by-step dynamic analysis are made. The soil-structure interaction and the P-Δ effects are included in the analysis. The analytical periods are compared to those experimentally obtained. A very good congruency between the analytically predicted behavior and the observed damage level after the earthquake is obtained. The direction and the stories with maximum damages match with the direction and stories with maximum deformations obtained from the analysis. It is noticed that the structure has a superior lateral resistance capacity regarding to the given in the conventional design.
Inelastic Seismic Behavior without and with Over-Resistance Effects of 10-Story Building RC Damaged due to the 1985 Earthquakes in Mexico City
2012
4 Seiten
Aufsatz (Konferenz)
Englisch
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