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Full-Text Articles in Engineering
Highway-Railway At-Grade Crossings: Trackbed And Surface Pressure Measurements And Assessments, Jerry G. Rose, Daniel M. Durrett, Lindsay A. Walker, Jason C. Stith
Highway-Railway At-Grade Crossings: Trackbed And Surface Pressure Measurements And Assessments, Jerry G. Rose, Daniel M. Durrett, Lindsay A. Walker, Jason C. Stith
Kentucky Transportation Center Research Report
Techniques are described for installing instrumentation within highway/railway crossings – to measure vertical pressures under moving highway and railway loadings – using earth pressure cells. Also, techniques are described for installing instrumentation between rail base/tie plate interfaces – to measure vertical pressures under moving railway loadings – using pressure sensitive ink sensors. In addition, the sensors were used to measure the surface pressures imparted by highway vehicles on crossing surfaces. Data is presented for several crossings including a wide variety of conditions and loading intensities. The data serves to quantify pressure gradients within highway/railway crossings for application to structural design …
Vehicle Tire-Pavement Interfacial Surface Pressure Measurements And Assessments, Jerry G. Rose, Timothy E. Guenther
Vehicle Tire-Pavement Interfacial Surface Pressure Measurements And Assessments, Jerry G. Rose, Timothy E. Guenther
Kentucky Transportation Center Research Report
This report examines a method of using Piezoelectric Pressure-Sensitive Ink (Tekscan) Pressure Measurement System to evaluate vehicle tire pressures that are exerted on the surface of pavements. Upgrades to the Tekscan system facilitated refinements from previous research and allows for procedures to be modified in order to account for these improvements. Among the most significant advances is the ability to select various sensitivities within the software program. In addition to the methodology of evaluating calibration practices, sensitivity and sensor selection, it was important to determine how accurately the pressures and wheel loads can be computed from pavement tests. Also examined …