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原文传递 Monitoring a Pile-Supported Integral Abutment Bridge at a Site with Shallow Bedrock.

题名：	Monitoring a Pile-Supported Integral Abutment Bridge at a Site with Shallow Bedrock.
作者：	hartt, s. l.
关键词：	pile structure, loads(forces), monitoring, rocks, design, construction, maine, guidelines, performance evaluation, research project, seasonal variations, thermal stresses, finite element method
摘要：	Currently, pile supported integral abutments are limited to locations where the depth of overburden can provide fixed support conditions. In Maine, there are often integral abutment bridges site with a shallow depth to bedrock where piles must be drilled into bedrock to obtain fixity. The objective of this research is to expand the use of pile-supported abutment bridges bearing on bedrock at sites where the depth to bedrock is considered shallow, less than 4m (13 ft) from the ground surface. The completed Phase I of this project (DeLano, 2004) has produced preliminary design guidelines for integral abutment bridges with piles to the top of bedrock at an overburden depth less than that required for developing fixity. The objective of Phase II of this two-part research project is to finalize the design and construction guidelines by incorporating the performance of a constructed, skewed integral abutment bridge on shallow bedrock into the guideline. Part (a) of Phase II (this report) includes instrumentation installation, construction monitoring, and full-scale live load testing on the Nash Stream Bridge in Coplin Plantation, ME. / Supplementary Notes: Sponsored by Maine Dept. of Transportation, Augusta. / 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：	u0724；246p
报告类型：	科技报告