The 3D frame was subjected to four ground motion of increasing intensity levels. All 2D frames were subjected to seven compatible earthquakes and scaled to accelerations ranging from 0.1g to 1.5g (105 cases for each frame) obtained from the Pacific Earthquake Engineering Research (PEER) database. For columns the steel reinforcement ratio used was determined using the methodology presented in ACI 318-08. For each aspect ratio, four longitudinal steel reinforcement ratios for the beams that varied from 0.85% to 2.5% were used. The design guidelines used were taken from the ACI 318-08 and ASCE 7-05 building codes, which are the design guidelines used for United States constructions. A total of 16 RC special moment resisting frames (2D) with different aspect ratios (L/H) and one 3D RC frame were analyzed in order to evaluate the seismic behavior of the structure at different performance levels. ![]() ![]() This study presents a research plan to characterize the behavior of Reinforced Concrete (RC) moment resistant frames at different performance levels established by the ASCE 41-06 seismic rehabilitation code. Performance-based earthquake engineering is focused in the definition of limits states to represent different levels of damage, which can be described by material strains, drifts, displacements or even changes in dissipating properties and stiffness of the structure.
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