Preliminary communication

https://doi.org/10.17559/TV-20150124002223

Pile Load Test Results as a Basis for Reliability Calculation with Parabolic Response Surface

Jerzy Bauer ; Faculty of Geoengineering, Geology and Mining, Wrocław University of Science and Technology, Na Grobli 15, 50-421 Wrocław, Poland
Wojciech Puła ; Faculty of Civil Engineering, Wrocław University of Science and Technology, Wybrzeże St. Wyspiańskiego 27, 50-370 Wrocław, Poland
Marek Wyjadłowski ; Faculty of Civil Engineering, Wrocław University of Science and Technology, Wybrzeże St. Wyspiańskiego 27, 50-370 Wrocław, Poland

Abstract

The paper will discuss a method of analysing head displacements of piles subjected to lateral load test that is suitable for reliability calculation. The obtained results will be used for writing down the serviceability limit state equation related to a pile representing the group of piles under investigation. The obtained set of displacements for the test piles will be a base for creating a response surface function which may be used for determining reliability index of a pile foundation by means of FORM, SORM or Monte Carlo methods proposed by structural reliability theory. A classic response surface has a form of a polynomial of degree two. Unfortunately, this type of response surface produces erroneous reliability indices. The discussed method of allowable pile load estimation, based on load test results and using a parabolic response surface without an independent term for structural reliability theory calculations, is characterized by the easiness of obtaining a response surface. It is very easy to obtain results for this type of response surfaces by using FORM and SORM methods.

Keywords

pile testing; reliability of structure; serviceability limit states

Hrčak ID:

199156

URI

https://hrcak.srce.hr/199156

Publication date:

21.4.2018.

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