A5076459798- Structural Health Monitoring Techniques
- Seismic Performance and Analysis
- Masonry and Concrete Structural Analysis
- earthquake and tectonic studies
- Infrastructure Maintenance and Monitoring
- Structural Engineering and Vibration Analysis
- Seismic Waves and Analysis
- Seismology and Earthquake Studies
- Geophysics and Sensor Technology
- Wind and Air Flow Studies
- Vibration Control and Rheological Fluids
- Earthquake Detection and Analysis
- Building Energy and Comfort Optimization
- Concrete Corrosion and Durability
- Building materials and conservation
- High-pressure geophysics and materials
- Seismic and Structural Analysis of Tall Buildings
- Geological and Tectonic Studies in Latin America
- Conservation Techniques and Studies
- Shape Memory Alloy Transformations
- Optical measurement and interference techniques
- Fault Detection and Control Systems
- Inertial Sensor and Navigation
- 3D Surveying and Cultural Heritage
- Probabilistic and Robust Engineering Design
University of Chile
2016-2025
Universidad de Santiago de Chile
2007
Marymount University
2006
We use seismic and geodetic data both jointly separately to constrain coseismic slip from the 12 November 1996 M w 7.7 23 June 2001 8.5 southern Peru subduction zone earthquakes, as well two large aftershocks following earthquake on 26 7 July 2001. all available in our inversions: GPS, interferometric synthetic aperture radar (InSAR) ERS‐1, ERS‐2, JERS, RADARSAT‐1 satellites, teleseismic strong motion stations. Our two‐dimensional models derived only body waves South American earthquakes...
In this article, a new bidirectional tuned liquid column damper (BTLCD) is proposed for controlling the seismic response of structures. The device acts as two independent and orthogonal dampers (TLCDs), but due to its configuration, it requires less than equivalent TLCDs. equations motion system formed by BTLCD primary structure be controlled are obtained means Lagrangian dynamics explicitly considering non-symetrical action damping forces. First, was assumed have degrees freedom (DOFs)....
We describe source and path attributes of the Next Generation Ground-Motion Attenuation for Subduction zones (NGA-Sub) project relational database. The database contains 991 earthquakes between 1937 2016 that meet quality assurance standards have assigned event types (mostly interface or intraslab). Data curation emphasized large magnitudes: 73% events M > 5 13 8. Event in can be broadly divided into those related to moment tensor, rupture surface geometry (referred as finite-fault...
The M w 8.8 Maule, Chile, earthquake produced 31 usable strong motion recordings from currently accessible arrays over a rupture distance range of 30 to 700 km. Site conditions firm rock soft soil but are most often competent (NEHRP Category C or C/D). Most the data were recorded on analogue instruments, which was digitized and processed with low- high-cut filters designed maximize frequency signals. stations closest fault plane do not exhibit evidence ground polarization directivity....
The satisfactory structural behavior observed during large earthquakes and the high seismicity of country has conditioned Chilean society to expect immediate occupancy performance level for their buildings under these extreme events, although seismic design code in Chile mandates only a scope life safety level. Based on observational statistical evidence from recent strong Chile, it is concluded that resilience consequence limiting damage, considering operational are different challenges...
<title>Abstract</title> While we can only instrument a small number of structures with traditional sensors, cities have become surrounded by video cameras that record response whatever is in their field view. In this paper proof concept if combine the seismic data derived from input obtained accelerometers installed at ground level, linear and nonlinear structure be estimated. We present an application validation laboratory environment on plane steel frame under varying shaking amplitudes....
Pull-back and shaking table test results on a simple model of three-storey structure that includes shape memory alloys (SMA) copper-based dampers are presented discussed. The corresponds to rigid-framed steel the austenite CuAlBe wires inserted as bracing at each story. inclusion dissipators in increases percentage critical damping from 0.59% for bare case 5.95% braced system. At same time, structural stiffness making first fundamental frequency change 2.5–3.7 Hz (0.4–0.27s). net effect...
A set of observations on site effects and damage patterns from the M w 8.8 Maule, Chile, earthquake is presented, focusing identification structural variability associated with nonuniform soil conditions subsurface geology. Observations are reported from: (1) City Santiago de Chile (Américo Vespucio Norte Ring Highway, Ciudad Empresarial business park), (2) Municipality Viña del Mar, (3) Concepción, extending over 600 km along Chilean coast. Reconnaissance information ground motion...
There is an important need for seismologists and engineers to determine seismic displacement including its quasi-static components. The existence of commercial low-cost low-noise instruments has prompted researchers try derive displacement-time histories from acceleration records by using different integration techniques. In this article we show that reason the failure process presence, in translational records, tilt effects or rotational components motions. importance these been considered...
The applicability of existing ground-motion prediction equations (GMPEs) for subduction-zone earthquakes is an important issue to address in the assessment seismic hazard affecting Peru-Chile and Central American regions.Few predictive exist that are derived from local data, these do not generally meet quality criteria required use modern analyses.This paper investigates a set global regional subduction models zones, distinguishing between interface intraslab events, light recently compiled...