In this paper, torsional behavior of asymmetric structures with fixed base and isolated base has been compared. Studied Structures are three-dimensional, three and eight story steel structures whose nonlinear time history analysis was conducted based on the records of El Centro earthquake (1940), Tabas earthquake (1978), and Bam earthquake (2003). Analysis results show the efficiency of seismic...

Experimental or theoretical tests show that dramatically changes of infill area causes soft story mechanism. "Soft story" mechanism is the most frequent failure mode of reinforced concrete (R.C.) structures. This phenomenon is caused by the fact that the overall shear force applied to the building by an earthquake is higher at the base floor. If the lower story is not originally weakened, it is...

Study on the seismic behavior of piled rafts and pile groups while the same amount of construction material and excavation is used in their construction, are the main objective of this research. The process where the raft interaction with soil can affect the seismic response and stress distribution is also discussed in the current study. By means, ABAQUS software was applied for the finite elem...

A new type of composite control scheme of disturbance-observer-based control and terminal sliding mode control is proposed for uncertain structural systems. The disturbance are supposed to include two parts. One is generated by an exogenous system, which can represent the harmonic signals with modeling perturbations in structural system. The other part is external excitation in H2-norm context....

1 Departamento de Biologı́a Marina, Universidad Católica del Norte, Larrondo, Coquimbo, Chile 2 Centro de Investigación Oceanográfica en el Pacı́fico Sur-Oriental (COPAS), Universidad de Concepción, Casilla, Concepción, Chile 3 Integrative Oceanography Division, Scripps Institution of Oceanography, La Jolla, CA, USA 4 Centro de Investigación en el Ecosistemas de la Patagonia (CIEP), Bilbao, Coyha...

l Centro de Innovación y Desarrollo Tecnológico en Cómputo (CIDETEC) surge de la transformación del Centro de Investigación Tecnológica en Computación (CINTEC), a partir del acuerdo tomado por el Consejo General Consultivo del Instituto Politécnico Nacional en su reunión ordinaria de mayo de 1997, con los objetivos de consolidar la operación de la infraestructura de cómputo del Instituto, de de...

study on the seismic behavior of piled rafts and pile groups while the same amount of construction material and excavation is used in their construction, are the main objective of this research. the process where the raft interaction with soil can affect the seismic response and stress distribution is also discussed in the current study. by means, abaqus software was applied for the finite elem...

magnetorheological (mr) dampers have the advantage of being tuned by low voltages. this has attracted many researchers to develop semi-active control of structures in theory and practice. most of the control strategies first obtain the desired forces of dampers without taking their dynamics into consideration and then determine the input voltages according to those forces. as a result, these st...

Resumen. El proyecto LAURIN surge ante la necesidad de proveer a las bibliotecas y centro de documentación de los instrumentos pertinentes para la digitalización de prensa escrita. Para ello se han desarrollado un sistema útil tanto para la digitalización como para el tratamientos de los clippings indización, tratamiento, almacenamiento y recuperación así como el enlace con otras bases de datos...

En este trabajo se presenta un conjunto de reflexiones y conclusiones alrededor del proceso de formación del profesorado y personal no docente en el uso de un LMS (Learning Management System) en un centro educativo, y el proceso de implantación de dicho sistema. En el entorno presencial de aprendizaje del Centre d’Estudis Politècnics, en adelante CEP, es necesario facilitar la comunicación y el...