Nonlinear Load-Deflection Behavior of Reinforced Concrete Drilled Piles in Stiff Clay

Autor:	Payman Khalili-Tehrani, Jonathan P. Stewart, Eric R. Ahlberg, John W. Wallace, Anne Lemnitzer, Ertugrul Taciroglu, Chang-Soon Rha
Rok vydání:	2014
Předmět:	business.industry Structural engineering Geotechnical Engineering and Engineering Geology Reinforced concrete Nonlinear system Load deflection Structural load Deflection (engineering) Soil structure interaction Geotechnical engineering Pile business Geology General Environmental Science Test data
Zdroj:	Journal of Geotechnical and Geoenvironmental Engineering. 140
ISSN:	1943-5606 1090-0241
DOI:	10.1061/(asce)gt.1943-5606.0000957
Popis:	The results of three full-scale lateral load tests of cast-in-drilled-hole RC piles are evaluated to provide insights into the soil-pile interaction behavior as represented by p-y curves (p = soil reaction/length; y = lateral pile deflection) spanning from elastic conditions to mobilization of the soil capacity. The test sequence enables evaluation of the diameter effects on the p-y behavior as a result of testing two otherwise similar specimens, but with different diameters (0.6 and 1.8 m), and evaluation of the head-fixity effects as a result of testing similar specimens (with a 0.6 m diameter) under flagpole and fixed-head conditions. A constrained exhaustive search procedure that facilitates data interpretation even in the presence of severe shaft nonlinearity is introduced, which was needed because the testing was performed to full structural failure conditions. The p-y curves obtained with the present test data differ from the predictions of a standard (American Petroleum Institute) model, i...
Databáze:	OpenAIRE
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