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RISConstruction and Field Evaluation of Electrically Isolated Tendons in a Prestressed Concrete Spliced Girder Bridge
Publisher: ASCE
Abstract: This paper describes the first application of Electrically Isolated Tendon (EIT) technology in the United States. These systems have been developed to provide a level of quality assurance for post-tensioned strand systems ...
Anchorage of Reinforced Concrete Parapets on Glass Fiber Reinforced Polymer Bridge Decks
Publisher: American Society of Civil Engineers
Abstract: An experimental investigation was conducted to develop an effective means of connecting glass fiber reinforced polymer (FRP) bridge decks to conventional reinforced concrete parapets. Six full-scale subassemblies were ...
Precast Concrete Diaphragm Connector Performance Database
Publisher: American Society of Civil Engineers
Abstract: A variety of connector details are used to provide integrity and force transfer between precast concrete panels in building floor diaphragms. To assess the adequacy of these connectors a large number of experiments have ...
Behavior of Planetary Waves before and after Stratospheric Sudden Warming Events in Several Phases of the Equatorial QBO
Publisher: American Meteorological Society
Abstract: Almost a thousand stratospheric sudden warming (SSW) events are obtained through long time integrations with a simple global circulation model, and a statistical analysis based on such a large number of samples is made to ...
Effect of Bow Wings on Ship Propulsion and Motions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A seaworthy ship must have the ability to endure the constantly changing and sometimes harsh environments of the ocean. Stable operation of a ship is important not only to prevent capsizing, ...
Design of Precast Diaphragm Chord Connections for In-Plane Tension Demands
Publisher: American Society of Civil Engineers
Abstract: This paper discusses the design and modeling of a welded chord connection commonly used in pretopped precast double tee panels. In conventional design, the chord is intended to achieve its tension strength based on the ...
Bistatic Microwave Probing of a Refractively Perturbed Clear Atmosphere
Publisher: American Meteorological Society
Abstract: Comprehensive calculations are carried out to predict the signal levels to be received by powerful 5- and 10-cm wavelength bistatic scatter systems from vertically thin but horizontally extensive layers of turbulently ...
High-Frequency Components of Ocean Waves and Their Relation to the Aerodynamic Roughness
Publisher: American Meteorological Society
Abstract: Ocean waves of high frequency (from about 10 to 200 rad sec?1) were observed by means of a thin capacitance-type wave gage. The representative rms height, hp, of the sea-surface irregularities associated with the high-frequency ...
Use of Precast Concrete Walls for Blast Protection of Steel Stud Construction
Publisher: American Society of Civil Engineers
Abstract: This research study examines the use of a precast concrete panel system for blast protection of facilities with exterior light gauge metal stud walls. The structural retrofit is designed for the specific case where internal ...
Optimizing the Radar Detection of Clear Air Turbulence
Publisher: American Meteorological Society
Abstract: A general analysis is made of the turbulent refractivity spectrum in and beyond the limiting microscale and a relation derived for its scattering reflectivity in either the back or bistatic directions. Radar reflectivity ...