A5041429954- Seismic Performance and Analysis
- Structural Health Monitoring Techniques
- Vibration Control and Rheological Fluids
- Masonry and Concrete Structural Analysis
- earthquake and tectonic studies
- Structural Engineering and Vibration Analysis
- Vibration and Dynamic Analysis
- Structural Response to Dynamic Loads
- Infrastructure Resilience and Vulnerability Analysis
- Structural Behavior of Reinforced Concrete
- Disaster Management and Resilience
- Structural Analysis and Optimization
- Disaster Response and Management
- Geophysics and Sensor Technology
- Fluid Dynamics Simulations and Interactions
- Risk and Safety Analysis
- Seismology and Earthquake Studies
- Geological and Tectonic Studies in Latin America
- Geotechnical Engineering and Soil Stabilization
- Building materials and conservation
- Evacuation and Crowd Dynamics
- Dynamics and Control of Mechanical Systems
- Wind and Air Flow Studies
- Power System Reliability and Maintenance
- Earthquake and Tsunami Effects
Pontificia Universidad Católica de Chile
2014-2024
Research Center for Integrated Disaster Risk Management
2015-2024
Weatherford College
2012
Marymount University
1998-2010
American Society of Civil Engineers
2001
University of California, Berkeley
1994-2001
Countries around the world suffer dramatic impact of earthquakes and other natural hazards reflected in casualties, infrastructure damage, service interruptions, recovery costs. Although disaster exposure consciousness electric power systems has increased recent years, mitigation adaptation actions, such as reserve scheduling investments, are usually performed without quantitative tools to account for underlying stochasticity these events. This article first discusses why an integrated...
Research Article| November 27, 2018 An Updated Recurrence Model for Chilean Subduction Seismicity and Statistical Validation of Its Poisson Nature Alan Poulos; Poulos aNational Center Integrated Natural Disaster Management (CIGIDEN), CONICYT/FONDAP/15110017, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago 7820436, alan.poulos@cigiden.cl, mauricio.monsalve@cigiden.cl, natalia.zamora@cigiden.cl, jcllera@ing.puc.cl Search other works by this author on: GSW Google...
Abstract We analyzed the coseismic and early postseismic deformation of 2015, M w 8.3 Illapel earthquake by inverting 13 continuous GPS time series. The seismic rupture concentrated in a shallow (<20 km depth) 100 long asperity, which slipped up to 8 m, releasing moment 3.6 × 10 21 Nm ( = 8.3). After 43 days, afterslip encompassed rupture. Afterslip two main patches 0.50 m between 20 40 depth along northern southern ends rupture, partially overlapping slip. aftershocks confined region...
Abstract This paper presents the numerical and experimental evaluation of a vertical‐rocking isolation (VRI). is done by 1‐D shaking table tests performed on full‐scale legged storage tank 3000‐liters capacity its representation through simple yet representative rigid lumped‐mass model approach. The system setup consisted four ISO3D‐2G devices, each one placed leg tank, which uses high‐damping natural rubber to generate restoring dissipative forces. device vertically flexible laterally...
Different modelling aspects of structures isolated using the frictional pendulum system and subjected to earthquake ground motions are studied herein. Although vertical dynamics these is given special emphasis, other effects such as large isolator deformations bidirectional input motion also considered. structural models FPS developed tested for single-storey a real four-storey building frame; among them, an 'exact' formulation force–deformation constitutive relationship presented. Results...
Abstract This investigation is concerned with accidental torsion in buildings resulting from rotational excitation (about a vertical axis) of the building foundations as result spatially non‐uniform ground motions. Because this torsion, displacements and deformations structural elements are likely to increase. increase response evaluated using actual base excitations derived motions recorded at 30 during recent California earthquakes. Accidental has effect increasing displacements, mean, by...
The objectives of this study were to introduce a damage and loss-of-function survey tool that can be used standardize future assessment hospital performance, assess the impact 2010 Chilean earthquake on functions public system in Bío-Bío Province, translate these results as lessons applied U.S. hospitals. This focused structural nonstructural components, utility services, equipment, well loss supplies personnel. Structural engineers completed visual inspection facilities, administrators...
Detailed observations are reported for eight shear wall buildings from the Concepción region that experienced severe damage during 27 February 2010 Chile earthquake. The repetitive nature of some suggests these field may be applicable to similar elsewhere, whereas other unique. Several walls failures apparently started at boundaries due high compression in unconfined edges, and propagated into web. Other walls, including horizontal vertical segments perforated failure. Damage also was...
Summary This paper presents a comprehensive comparison of different dynamic and static approaches for assessing building performance under sequential earthquakes tsunami. A 10‐storey reinforced concrete seismically designed Japanese vertical evacuation structure is adopted as case study the investigation. The first assessed earthquake tsunami nonlinear response history analyses: time this done in literature. resulting engineering demand parameters are then compared with those obtained when...
Abstract This article presents a physical model for frictional pendulum isolators (FPS) that is ready to be implemented in most commercial software. The capable of accounting effects such as large deformations, sticking, and uplift impact by sensing the normal loads through gap element. Sticking has been incorporated into extending Park–Wen hysteretic case deformations. proposed tested against theoretically ‘exact’ formulation leading essentially identical results. To facilitate its use, FPS...