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Evaluation of Integral Abutments.
| 题名： | Evaluation of Integral Abutments. |
| 作者： | hassiotis, s. khodair, y. roman, e. dehne, y. |
| 关键词： | recommendation |
| 摘要： | An integral bridge is a single or multiple-span structure that is cast monolithically to its abutments. Stub abutments supported on a single row of vertical piles create a flexible connection that can accommodate the longitudinal displacements of the superstructure. The primary purpose of using integral abutments is the elimination of deck-movement joints and bearings that have been found expensive to maintain. This research project is centered on the evaluation of integral abutments as a design alternative to the use of bearings in medium-length highway bridges. It includes: (1) an extensive literature search; (2) the instrumentation of Scotch-Road Bridge in Trenton, N.J. to obtain strain data on the piles, displacement and rotation data on the abutment, soil-pressure data on the abutments and the MSE wall, and strain data on deck connection; and (3) a finite element model of the system. The end result is the recommended design procedure for integral abutments of highway bridges. Integral abutments have been found to be a safe alternative design. A step-by-step design procedure for piles to withstand the horizontal thermal loading is included. / NOTE: Final rept. / Supplementary Notes: Sponsored by New Jersey Dept. of Transportation, Trenton. Div. of Research and Technology. and Federal Highway 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 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 总页数： | u0722；196p |
| 报告类型： | 科技报告 |
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