Investiga sobre las réplicas que causan diferentes niveles de daño en las estructuras de los edificios; y ocasionalmente pueden resultar en colapso. Por lo tanto, es deseable contar con un instrumento para estimar la respuesta inelástica máxima durante una réplica significativa con el fin de anticipar si el edificio puede o no sobrevivir. Aborda el método basado en el rendimiento que se extiende a la estimación del rendimiento sísmico durante una réplica en los últimos años. La disponibilidad de un número cada vez mayor de registros de buena calidad de movimiento fuerte y sistemas de Monitoreo de Salud Estructural (SHM) permite el uso de registros reales para ser empleados en la estimación del desempeño sísmico durante una réplica del estado límite de seguridad de vida.

Adobe buildings usually are characterized by having walls with small and uniform slenderness ratios; nevertheless, there are some historical adobe buildings with existing large walls, where the influence of the aspect ratio becomes quite important in the seismic behavior. This article analyzes the seismic behavior of adobe buildings with larger walls in one axis than the other orthogonal axis. Also, the influence of the aspect ratio of the wall height respects on the wall length is analyzed by varying the wall length. Finite element models were elaborated using the concrete damaged plasticity model to study the influence of the aspect ratio on the seismic behavior of adobe buildings. Four models of buildings having different aspect ratios, varying in length from eight meters to fifty-two meters have been considered. Nonlinear time history analyses with three Peruvian seismic records are ...

Dado el riesgo sísmico que enfrentan los edificios en Perú, el monitoreo de la salud estructural de la infraestructura crítica es esencial. El monitoreo de la salud estructural (SHM, por sus siglas en inglés) se realiza comúnmente en el centro de masa (CM) de los edificios utilizando acelerómetros. Sin embargo, en estructuras con irregularidad torsional, la respuesta máxima no ocurre en el CM debido al efecto de torsión producido por la excentricidad en planta existente entre los centros de rigidez (CS) y masa. Proponemos una metodología para estimar la respuesta máxima en edificios con efectos de torsión utilizando SHM con acelerómetros posicionados en el CM. En la metodología propuesta, se definió el grado de irregularidad torsional para permitir el cálculo de la respuesta sísmica máxima. En consecuencia, se desarrolló un nuevo modelo de aprendizaje automático para p...

Structural Health Monitoring (SHM) allows assessing the structural damage in observed buildings through different methodologies, which observe changes in the structural behavior immediately after an earthquake. Some methodologies assess the structural damage by observing its global capacity curve obtained through the displacement and acceleration in all stories, calculated using wavelet transform and double integration process. Due to limited resources, some floors are instrumented, and non-instrumented stories response could be estimated by additional procedures, for instance the spline shape function. In this paper, different arrangements of sensors in the Edgardo Rebagliati Martins Hospital (HERM) are evaluated to find the best possible configuration to estimate the global capacity curve and the interstories capacity curves. A 14-story building in the HERM is analyzed, and the optimal...

In recent years, the development of seismic networks in Metropolitan Lima, administrated by public and private institutions, has received special attention since it makes possible the quantification of different seismic indexes under the occurrence of earthquakes. Therefore, the integration of the information both from acceleration sensors and site conditions from microzoning studies allows the estimation of the possible extent of the damage in quasi-real time. In this study, the implementation of a system to evaluate seismic parameters in a uniform grid of 250 x 250 m2 resolution is reported. In this regard, peak ground acceleration (PGA) values from the available time-history records are computed and reduced to the engineering bedrock level. Then, by means of the interpolation technique called Ordinary Kriging, in which each seismic station is considered as a random variable and the co...