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原文传递 Calibration of Faarfield Rigid Pavent Design Procedure. Final Report.

题名：	Calibration of Faarfield Rigid Pavent Design Procedure. Final Report.
作者：	D. R. Brill;
关键词：	rigid pavements,airport pavement design,thickness design;three-dimensional finite element model, calibration;
摘要：	The Federal Aviation Administration (FAA)-developed Rigid and Flexible Iterative Elastic Layer Design (FAARFIELD) is a computer-based thickness design procedure for airport pavements. For rigid pavements and overlays, the procedure combines a three-dimensional finite element analysis of the rigid pavement system with a performance/failure model based on full-scale traffic tests. For flexible pavements, FAARFIELD uses the same structural response and failure models as LEDFAA version 1.3. The updated rigid pavement failure model in FAARFIELD is based on full-scale tests results from the National Airport Pavement Test Facility and a re-analysis of historical full-scale tests conducted by the U.S. Army Corps of Engineers prior to the 1970s. The FAARFIELD design procedure is intended to supersede the pavement thickness design curves in FAA Advisory Circular (AC) 150/5320-6D. The design curves are considered adequate for traffic mixes including aircraft up to dual-tandem aircraft gears, including the Boeing 747, but cannot be used for newer models with more complex gear geometries. Since it is desirable that rigid pavement thickness designs performed using FAARFIELD not deviate too greatly from equivalent designs using the existing design charts when the design aircraft mix is restricted to the older models, a calibration study was performed. Based on this study, a calibration factor equal to 1.12 was applied to FAARFIELD design stresses to ensure that FAARFIELD rigid pavement design thicknesses are compatible with the earlier procedure for aircraft traffic up to and including the B747. An additional analysis was performed comparing the calibrated FAARFIELD designs with designs based on a modification of the AC 150/5320-6D design procedure using the FAA program COMFAA 2.0 to obtain design thicknesses. / Supplementary Notes: Sponsored by Federal Aviation Administration, Washington, DC. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A05 / NTIS In-house Control Codes: dotfaa;12091,1101
报告类型：	科技报告