ETAT LIMITE ULTIME
English translation: ultimate limit state (ULS) ; failure load
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| 12:55 Dec 19, 2001 |
| French to English translations [PRO] Tech/Engineering / GEOTECHNICAL / SOIL SURVEY | |||||||
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|  Selected response from: Nikki Scott-Despaigne Local time: 21:39 | ||||||
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| Summary of answers provided | ||||
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| 5 | ultimate limit state |
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| 4 | ultimate limit status |
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| 4 | ultimate limit status (ULS) ; failure load |
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Answers
46 mins confidence: 
ultimate limit status Explanation: hope it helps |
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1 hr confidence:
ultimate limit state Explanation: See the site listed below -------------------------------------------------- Note added at 2001-12-19 14:00:49 (GMT) -------------------------------------------------- Sorry. You should, instead, see the site: http://www.solid.ikp.liu.se/solidbook/kots.html -------------------------------------------------- Note added at 2001-12-19 14:01:45 (GMT) -------------------------------------------------- Just perform a search with yahoo for "ultimate limit state" -------------------------------------------------- Note added at 2001-12-19 14:08:29 (GMT) -------------------------------------------------- See also the site: http://www.surrey.ac.uk/CivEng/pgprog/modstrut.htm Reference: http://google.yahoo.com/bin/query?p=ELU+etat+limit+ultime&hc... |
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5 hrs confidence:
ultimate limit status (ULS) ; failure load Explanation: État limite ultime = ultimate limit state (ULS) or its less technical term "failure load". 1 - http://www.engineering.manhattan.edu/civil/CGT/T2olrint2.htm... An important part of modern geotechnical engineering has always been the comparison of calculated or otherwise anticipated results with "ground truth", i.e. actual measured results, preferably from full-scale, prototype structures. When dealing with deep foundations, the traditional source of ground truth is load tests on full-size piles or drilled shafts. Typically, the geotechnical "failure load" (more correctly defined as the geotechnical Ultimate Limit State (ULS)) measured in a load test is stated without question as an absolute, single-valued number. Any difference between a calculated failure load and load test value is always attributed to a deficiency in the calculation procedure. Defining the Geotechnical Ultimate Limit State (ULS) After the load-settlement data have been collected and plotted, there is still considerable subjectivity as to how the plotted results are interpreted to produce a "failure load". The heart of this complication is the fact that soil failure is totally unlike that of a solid material where a physical material rupture occurs at an unambiguously defined load. Soil failure is defined as relatively large-scale slippage either between soil particles or between soil particles and some solid-material surface, e.g. along the side of a pile. Furthermore, experience indicates that even when a deep foundation "plunges" into the ground at some point the load required to maintain downward movement actually increases, albeit slightly in many cases, with increasing settlement. Therefore, some consideration of deformation (settlement in this case) is always required, either explicitly or implicitly, to define the geotechnical ULS. 2 - www.mms.gov/alaska/reports/Intec/Section 11.pdf Engineering Failures : There are a number of pipeline conditions that would be considered to be engineering failures. The associated consequence is not necessarily oil spilled to the environment. Examples of these conditions are: - Serviceability Limit State : A potentially undesirable pipeline condition. A serviceability condition is generally within the limits of the design criteria, however it may need close monitoring and perhaps future corrective action. This condition is unlikely to require immediate shutdown of the pipeline system. - Ultimate Limit State (ULS): A pipeline condition characterized by a deformation of the pipeline, which disrupts the normal operation of the pipeline system without creating a leak. It will likely require the shutdown of the pipeline system in order to take the necessary corrective action. The following examples will describe this situation: local buckling or cross-section collapse without fracture, upheaval buckling leading to pipeline exposure, excessive corrosionleading to wall thickness reduction, pipeline dent due to excessive bending. - Ultimate Limit State with Leak : Worst case scenario of a pipeline failure condition resulting in fracture/rupture of the pipeline and the consequent leaking. -------------------------------------------------- Note added at 2001-12-19 18:13:43 (GMT) -------------------------------------------------- ELU = ULS -------------------------------------------------- Note added at 2001-12-19 18:15:15 (GMT) -------------------------------------------------- Correction : "state" and not "status" Reference: http://www.mms.gov/alaska/reports/Intec/Section%2011.pdf Reference: http://www.engineering.manhattan.edu/civil/CGT/T2olrint2.htm... |
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