Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Equivalent head-down load vs. Movement relationships evaluated from bi-directional pile load tests
Abstract The increasing use of bi-directional (Osterberg cell) load tests in piles necessitates a reliable evaluation of the load-movement relationship equivalent to the head-down load test. In this study, the existing evaluation methods were reviewed, and a new method for evaluating the equivalent head-down curve was proposed. This method considers possible situations, such as non-measured axial load distribution along the pile and the existence of residual load distribution. Three cases, in which bi-directional and head-down load tests were performed at the same site, were analyzed in order to validate the proposed method. The results of the case studies showed that the equivalent load-movement curves obtained either without assuming unit shaft resistance distribution or by considering the effect of residual load agreed well with the measured curves obtained from the head-down test. Therefore, the proposed method is recommended for practical use.
Equivalent head-down load vs. Movement relationships evaluated from bi-directional pile load tests
Abstract The increasing use of bi-directional (Osterberg cell) load tests in piles necessitates a reliable evaluation of the load-movement relationship equivalent to the head-down load test. In this study, the existing evaluation methods were reviewed, and a new method for evaluating the equivalent head-down curve was proposed. This method considers possible situations, such as non-measured axial load distribution along the pile and the existence of residual load distribution. Three cases, in which bi-directional and head-down load tests were performed at the same site, were analyzed in order to validate the proposed method. The results of the case studies showed that the equivalent load-movement curves obtained either without assuming unit shaft resistance distribution or by considering the effect of residual load agreed well with the measured curves obtained from the head-down test. Therefore, the proposed method is recommended for practical use.
Equivalent head-down load vs. Movement relationships evaluated from bi-directional pile load tests
Kim, Sung-Ryul (Autor:in) / Chung, Sung-Gyo (Autor:in)
KSCE Journal of Civil Engineering ; 16 ; 1170-1177
30.10.2012
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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