Abstract
This study evaluates the seismic response of an existing two stories RC building using non-linear analysis. The original model was resized and there were obtained two buildings designed under two different methodologies to fulfill the Venezuelan codes requirements for a high seismic hazard. An elastic analysis was applied to the original building in order to verify interstory drifts; the resizing building it was designed under requirements of strong column-wake beam condition. A third building was modeled according to the seismic displacement design procedure. It were performed non-linear static analysis and 2D and 3D dynamic analyses, obtaining capacity curves, structural ductility, structural performance point, global and interstory drifts for each building. Torsional effects for the resizing building were also computed from 3D analysis. In the original building it was obtained a weak seismic behavior, while resized buildings presented good seismic performance under the Limits States evaluated in this study.
Highlights
Along its history, Venezuela has been severely affected by destructive earthquakes [1]
80% of the population lives in seismically active areas, where have occurred destructive earthquakes even in recent times [2]; The seismic hazard, inadequate design and construction of buildings as well as the damage occurred from previous earthquakes, demonstrate a high vulnerability in existing buildings
This study used a mechanical method that involves non-linear analysis with deterministic and probabilistic approaches, as well as procedures of analysis based on Limits States defined by displacement [6], in order to evaluate the behavior of a low rise reinforced concrete (RC) building with asymmetry in plant, designed according to Venezuelan codes [7,8,9] and subjected to seismic action effect
Summary
Venezuela has been severely affected by destructive earthquakes [1]. Upgrades require the evaluation of predictions of the expected damage to structures at the time of an earthquake of a certain severity to occur. From this prediction it can be defined solutions for the reduction of structural vulnerability [3]. This study used a mechanical method that involves non-linear analysis with deterministic and probabilistic approaches, as well as procedures of analysis based on Limits States defined by displacement [6], in order to evaluate the behavior of a low rise RC building with asymmetry in plant, designed according to Venezuelan codes [7,8,9] and subjected to seismic action effect. Through the use of mathematical models and computational tools, seismic behavior of the building is obtained in a suitable way
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