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Consideración de las columnas cortas en la vulnerabilidad sísmica de las estructuras
(2005)
It has been observed that in recent earthquakes the short column effect has caused damage. The main objective of this investigation was to develop a simple methodology to identify the short column effect. The methodology ...
Estudio de la influencia de las adiciones minerales como sustituto parcial del cemento Portland en las propiedades mecánicas y de durabilidad del hormigón
(2012)
The use of mineral admixtures as substitute of cement in concrete is widely extended for various reasons. The reduction of doses of cement in the concrete mixtures reduces the material costs, decreases the pollution and ...
Desarrollo de una aplicación de apoyo para la toma de decisiones en el análisis de "Value for Money" para proyectos de autopistas en Puerto Rico
(2013)
The main objective of this research was the development of an application that can perform the "Value for Money” analysis. For the application to perform the analysis correctly, it must be able to make both the qualitative ...
Acople de HSPF - Un modelo de simulación hidrológica con CE-QUAL-W2 de calidad de agua en el Lago Cerrillos, Ponce, Puerto Rico
(2014)
Este documento presenta el acople del modelo de simulación hidrológica HSPF (Hydrologic Simulation Program FORTRAN) y el modelo de calidad de agua en lagos (CE-QUAL-W2), realizado en la cuenca del Río Cerrillos y su ...
Laboratory analysis and evaluation of additives for characterizing warm mix asphalt in Puerto Rico
(2013)
This thesis documents the findings of a laboratory research study that was conducted to evaluate four Warm Mix Asphalt (WMA) technologies, namely Evotherm M1, Kaoamin 14, Sasobit, and Rediset. The asphalt binder was evaluated ...
Experimental study of wave slamming of sandwich composites
(2009)
Slamming of ship hull structures was simulated using sandwich composite panels that were repeatedly slammed on to a body of calm water with the main objective of understanding the damage accumulation mechanism and corresponding ...
Evaluation of different immobilization techniques of TiO2 particles in sintered glass substrate (SGS) for the degradation of Humic acid solutions
(2017)
It is well known that humic acids (HAs) have become one of the most extensively investigated organic material since they are considered one of the principal precursors of harmful compounds such as trihalomethanes (THMs). ...
Determinación de periodos fundamentales del suelo mediante vibraciones ambientales en el Municipio de Humacao, Puerto Rico
(2014-05)
The Nakamura’s technique has been used worldwide to determine site fundamental periods. The technique is to calculate and plot H/V spectral ratios from ambient vibrations recorded over the ground. Ambient vibration ...
Seismic response of inelastic concrete structures using the equivalent linear method
(2016)
The equivalent linear method is widely used in Geotechnical Earthquake Engineering to calculate the accelerations at the surface of soil deposits subject to earthquakes of moderate intensity. The method approximately takes ...
Use of ambient vibration measurements to estimate site fundamental periods at Condado and Isla Verde, PR
(2016-12)
The knowledge of the natural periods of soil deposits in urban areas can be very valuable for the safe design of structures to avoid resonance conditions. This thesis presents a study aimed to estimate site natural periods ...