Facing a serious waste management problem, the accumulation of scrap tires represents a huge environmental and health problem not only to Puerto Rico, but also to many nations. It is necessary to consider alternatives ...

Most of the earthquake damage is caused by the amplification due to local geological conditions of the seismic waves propagating from the bedrock. A simple and efficient way to characterize the geological conditions is the ...

This investigation was requested by the staff of the Arecibo Observatory to determine whether the towers and cables that support the suspended platform are capable of resisting a maximum-credible earthquake in the elastic ...

The most widely used model to perform the analysis of piles under lateral loads consists in modeling the pile as a series of beam elements and representing the soil as a group of unconnected, concentrated springs perpendicular ...

This thesis examined an approximate method to calculate the nonlinear seismic response of structures known as the Equivalent Linear Model (ELM) which seeks to approximate the true nonlinear response through a series of ...

Intermodal cargo containers, such as the International Organization for Standardization (ISO) containers, are use in a daily basis for transportation of merchandize. The development of the intermodal cargo containers ...

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 ...

Many bridges that represent an important part of our nation’s infrastructure system are constructed from steel components including steel plates, beams, columns, and cables of different configurations. Because of their ...

One dimensional ground response analyses was performed at fifteen sites in Mayagüez Puerto Rico to study their seismic response for the development of response spectra at the surface. Field experiments using the Spectral ...

The wind energy industry has seen a substantial growth in several industrialized countries in recent years. Traditionally, territories in northern Europe, with a low level of seismicity, have been the leaders in the use ...