Several synthetic models are constructed to fit the first 40 sec of the transversely polarized displacement, as recorded at El Centro, of the April 9, 1968 Borrego Mountain earthquake. The modeling is done in the time domain using the response computed for a distributed set of point shear dislocations embedded in a layered half-space. The beginning 1 0 sec of the observed record is used to mode...

A base-isolation system was developed for earthquake protection of low-rise structures. The system incorporates spherical supports for the base, a specially designed spring-cam system to keep the base supported under normal conditions, and moves for the duration of the earthquake under the constraint of a spring with optimized stiffness characteristics. The dynamic behaviour of a three-story co...

In present study, the effect of reservoir length on seismic performance of concrete gravity dam has been investigated. Monte Carlo probabilistic analysis has been used to achieve a sensitivity of the responses to variation of truncated reservoir length in finite element model. The ANSYS software based on finite element method is applied for modeling and analysis. The Pine Flat dam in California...

A typical Reinforced Concrete (RC) building frame comprising of RC columns and connecting beams that participates in resisting the earthquake forces. Due to earthquake, reversal tension generates at both faces a beam column; hence damage occur for disability carrying capacity concrete. Therefore, structural performance seismic load has been analyzed by nonlinear time history analysis method thi...

El Centro Hispano is a grassroots community-based organization dedicated to strengthening the Latino community and to improving the quality of life among Latino residents in central North Carolina. This article discusses El Centro Hispano's role in providing culturally and linguistically appropriate education, outreach, and referrals to prevent and control diabetes among Latinos.

Correspondence author: Dr. José Alberto González. Facultad de Medicina y Centro Regional para el Estudio de Enfermedades Digestivas (CREED). Hospital Universitario Dr. José Eleuterio González. UANL. Monterrey, NL. México. E-mail: [email protected] Facultad de Medicina y Centro Regional para el Estudio de Enfermedades Digestivas (CREED), Hospital Universitario Dr. José Eleuterio González, UANL...

Right-lateral surface displacement reaching 11⁄2 centimeters occurred over a ten-kilometer section of the Imperial fault in association with a magnitude 3.6 earthquake on March 4, 1966, the smallest known earthquake yet associated with surface displacement. The displacement is documented by field observations of en-echelon cracking in pavement and the offset of the white center line of Highway ...

The coupled lateral–torsional stochastic response of an asymmetric one-storey base isolated building to earthquake excitation is presented. The stochastic model of the 1940 El-Centro earthquake, which preserves the non-stationary evolution of the amplitude and frequency content of the ground acceleration, is used as earthquake excitation. The base isolator consists of an array of elastomeric be...

In this paper we present and propose a design methodology that uses intentional time delays for the active control of structures. We use here positive velocity-feedback, time-delayed control and show that its performance is, in general, superior to the previously developed methodology of using time delayed, negative velocity-feedback control. A detailed study carried out in this paper of the no...

One of the most important factors affecting the design of the structures, is the impact of the earthquake loadings on the forces and the design displacements. Nevertheless, the influences of the near structures on the existing buildings, that sometimes can cause great changes in forces and displacements, can never be forgotten. Thus, the induced displacement in the adjacent buildings of a newly...