NEW PERSPECTIVES: TRANSCRIPTIONS FOR VIOLA

One must only glance upon Franz Zeyringer’s 400-page, exhaustive Literatur für Viola to understand the error of the familiar but casual criticism of the paucity of the viola catalogue. Examining Zeyringer’s resource, however, we find a trend: while the viola repertoire contains many pieces (over 14,000 works) and does lay claim to many masterworks (Bartok’s Viola Concerto, Hindemith’s Sonatas, Mozart’s Sinfonia Concertante, etc.), many of the pieces originally written for the instrument are not widely recognized compositions and not often considered outstanding achievements. The violist, much like the double-bassist, bassoonist, and hornist, faces a certain challenge when selecting repertoire for a recital: a lack of large, important works that both fit the instrument and challenge the recitalist. This project will aim to expand recital repertoire for the viola through the development of new transcriptions, using the previously transcribed Fantasy Pieces by Schumann (trans. Leonard Davis) and Sonata No. 2 in E-flat, Op. 120 by Brahms (trans. Brahms) as an inspiration and guide. As a result, the catalogue of viola repertoire will not only be increased but the difference in tone and depth of the instrument may unveil previously unnoticed perspectives on the works. With a primary aim to expand the literature of the viola through the development of new transcriptions, this project will also strive to offer new, previously unnoticed perspectives on preexisting works. Through the changing of the instrumentation, listeners and performers will have the opportunity to explore the character of the compositions in a fresh and possibly illuminating way. Perhaps this project will encourage previously unexplored transcriptions to be realized and performed. While the recital repertoire for the viola boasts many and great works, the original transcriptions of this project attempt to infuse the collection with new and interesting possibilities for both study and performance. This dissertation project is comprised of three recitals featuring works transcribed for viola and, in most cases, newly transcribed by myself. All events took place on the campus of University of Maryland, College Park: Recital #1 on November 9, 2014 in the Gildenhorn Recital Hall of the Clarice Smith Performing Arts Center; Recital #2 on May 9, 2015, in Ulrich Recital Hall; and Recital #3 on November 6, 2015, in the Gildenhorn Recital Hall. 

BEHAVIOR OF FIBER REINFORCED POLYMER COMPOSITE PILES WITH ELLIPTICAL CROSS SECTIONS IN INTEGRAL ABUTMENT BRIDGE FOUNDATIONS

Every year in the US and other cold-climate countries considerable amount of money is spent to restore structural damages in conventional bridges resulting from (or “caused by”) salt corrosion in bridge expansion joints. Frequent usage of deicing salt in conventional bridges with expansion joints results in corrosion and other damages to the expansion joints, steel girders, stiffeners, concrete rebar, and any structural steel members in the abutments. The best way to prevent these damages is to eliminate the expansion joints at the abutment and elsewhere and make the entire bridge abutment and deck a continuous monolithic structural system. This type of bridge is called Integral Abutment Bridge which is now widely used in the US and other cold-climate countries. In order to provide lateral flexibility, the entire abutment is constructed on piles. Piles used in integral abutments should have enough capacity in the perpendicular direction to support the vertical forces. In addition, piles should be able to withstand corrosive environments near the surface of the ground and maintain their performance during the lifespan of the bridge. Fiber Reinforced Polymer (FRP) piles are a new type of pile that can not only accommodate large displacements, but can also resist corrosion significantly better than traditional steel or concrete piles. The use of FRP piles extends the life of the pile which in turn extends the life of the bridge. This dissertation studies FRP piles with elliptical shapes. The elliptical shapes can simultaneously provide flexibility and stiffness in two perpendicular axes. The elliptical shapes can be made using the filament winding method which is a less expensive method of manufacturing compared to the pultrusion or other manufacturing methods. In this dissertation a new way is introduced to construct the desired elliptical shapes with the filament winding method. Pile specifications such as dimensions, number of layers, fiber orientation angles, material, and soil stiffness are defined as parameters and the effects of each parameter on the pile stresses and pile failure have been studied. The ANSYS software has been used to model the composite materials. More than 14,000 nonlinear finite element pile models have been created, each slightly different from the others. The outputs of analyses have been used to draw curves. Optimum values of the parameters have been defined using generated curves. The best approaches to find optimum shape, angle of fibers and types of composite material have been discussed.