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原文传递 Evaluation of Design and Construction of HPC Deck Girder Bridge in Stanly County, North Carolina.

题名：	Evaluation of Design and Construction of HPC Deck Girder Bridge in Stanly County, North Carolina.
作者：	gergely, j. overcash, g. l. mock, j. b. clark, c. m. bailey, k. g.
关键词：	load testing, deck girders
摘要：	A current initiative by the Federal Highway Administration (FHWA), and the Innovative Bridge Research and Construction (IBRC) Program, focuses on new materials and technologies in bridge design and construction. Under this program, a recent project awarded to the North Carolina Department of Transportation (NCDOT) concentrates on a high performance concrete (HPC) deck girder system, comprising of a modified AASHTO Type III girder with an additional flange (deck) section, with the objectives to review the design and detailing information, monitor the deck girder fabrication and the bridge construction processes, load test the completed bridge, and to evaluate the embedded stud connection. The load testing of the deck girder bridge was performed using two tandem trucks. The bridge was instrumented using strain transducers, strain gages, and displacement transducers. The instrument layout was designed to experimentally determine the transverse distribution factors, impact factors, strain levels, and displacements of each girder due to different loading conditions. A finite element (FE) model was also developed, for which, model calibration was performed by comparing vertical displacement and stress values using NCDOT, Larsa, and ANSYS results on a single deck girder. Once calibrated, the single-girder model was then copied to create five identical deck girders. The plate and diaphragm components were created and the appropriate loads were placed on the model. The results were then compared to the actual quasi-static load test performed on the finished bridge. / NOTE: Final rept. (June 2005 - June 2006). / Supplementary Notes: Sponsored by North Carolina Dept. of Transportation, Raleigh. and Federal Highway Administration, Raleigh, NC. North Carolina Div. / 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 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0815；178p
报告类型：	科技报告