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Effect of Concrete Composition on Splitting Cracks in Prestressed Concrete Railroad Ties
Kansas State University researchers conducted fracture toughness (FT) tests on four, 3-point bending concrete specimens for each mixture type. Next, they fabricated pretensioned prisms with varying amounts of concrete covering the reinforcements. The prism strength was 4,500 psi when de-...
Livingston Avenue Bridge Replacement Project
Project Description
The Livingston Avenue Bridge (Bridge Identification Number [BIN] 7092890) is a rail bridge crossing the Hudson River between Rensselaer and Albany, New York. The bridge is located at Milepost QC 143.1 on the CSX Transportation, Inc. (CSX) Subdivision of the Empire Corridor, which is the principal passenger and freight route in New York State. The United States Department of Transportation (USDOT) designated the Empire Corridor as a High Speed Intercity Passenger Rail (HSIPR) corridor in 1998, based on its utility and its potential for future development.
Electronically Controlled Pneumatic Brake Device with Pneumatic Brake Emulation – Field Demonstration
Electronically Controlled Pneumatic (ECP) brake technology can improve both safety and braking performance of trains. One of the technical barriers is the interchange requirement of a freight car. This barrier can be addressed either by an overlay ECP or an ECP emulator. Under a previous effort...