Flexural stifness reduction factor wallap code#
Precise references to Eurocode itself.Įdition 2003 Document Code SP/M/022New Zealand Transport Agency (Transit NZ), PO Box 5084, Wellington Excellent presentation (and resolution)of conflicting interpretations of EC7.
With this, C580and the Designers' Guide (above) you may never need to read EN 1997-1.Good coverage of general principles. Much useful detail, comment and worked examples butnot totally self-contained.ĭecoding Eurocode 7 B+HAndrew Bond and Andrew HarrisTaylor and Francis, 2008A readable guide to the Eurocode geotechnical labyrinth. Thomas Telford Ltd, 2004Interesting historical background to the evolution of Eurocode and DesignApproaches. (B+H pp.402-403)An invaluable source of guidance and information.ĭesigners' Guide to EN 1997-1, Eurocode 7: Geotechnical design - General rules DGR.Frank, C.Bauduin, R.Driscoll, M.Kavvadas, N.Krebs Ovesen, T.Orrand B.Schuppener. Now superseded.ĬIRIA Report C580, Embedded retaining walls - guidance for economic design C580A.R.Gaba, B.Simpson, W.Powrie, D.R.Beadman.CIRIA, 2003.The UK National Annex to Eurocode 7 lists C580 as a source ofNon-contradictory, complementary information. Part 5: Foundations, retaining structures and geotechnical aspects Additional rules for design in seismic regionsīS8102:1990 Protection of structures against water from the ground BS8102Įurocode 7: National Annex Nationally determined parametersCountry-specific dataChoice of Design ApproachesReferences to Non-contradictory, complementary informationĬIRIA Report 104, Design of retaining walls embedded in stiff clays CIRIA 104C.J.Padfield and R.J.Mair CIRIA, 1984The predecessor of C580. Not an easy read.EN 1997-2 (Ground investigation and testing) is not discussed in this noteĮN 1998: Eurocode 8: Design of structures for earthquake resistance EC8 Part 1: General rules, seismic actions and rules for buildings. Underlying principles of Eurocodes for all types of structuresĮN 1991 Eurocode 1: Actions on structuresDesign guidance and definitions of Actions for all types of structuresĮN 1997-1 Eurocode 7: Geotechnical design - General rules EC7General principles and requirements to ensure safety, stability anddurability of earthworks and foundations. ReferredReferences to asEN 1990 Eurocode: Basis of structural design Pp Partial factor on strength of strut / anchor
Pp Partial factor on strut / anchor strength Mw Partial factor on bending strength of wall K Characteristic angle of shearing resistanceĬu Partial factor on undrained shear strength Xk Characteristic value of a material propertyĪ, p Angle of wall friction (active, passive)Ĭv = cs Constant Volume ( = Critical State) MWult Ultimate bending resistance of wall This note endeavours to set out and justify some of the choices which must bemade during the design process so that the WALLAP user canĪ) arrive at a rational design.b) justify it to the wider world.ĪULS, aSLS ULS and SLS seismic accelerationsĬSOFT Undrained shear strength of softened The requirements of EC7 are not always easy to understand or implement and in practice one encountersa variety of interpretations. The note does not describe the operational aspects ofWALLAP which are set out in the WALLAP Help system The purpose of this note is to summarise the requirements of EC7 as they relate to embedded retainingwalls and the use of WALLAP in their design. Seismic and Accidental situations after the end of construction can also be investigated. This allows the user to investigate both stability and structural forces at all stagesof construction. WALLAP carries out Limit Equilibrium and Soil-Structure Interaction analyses at each stage of theconstruction sequence. There are also optionsfor user-defined Limit States for those who wish to design according to codes other than EC7. Separate data sets (SLS and ULSparameters) can be generated in order to fully investigate the various Limit States.
WALLAP version 6 (June 2012) introduces a new feature to simplify the preparation of data inaccordance with the different Limit State analyses required by EC7. The use of WALLAP in the context of Eurocode 7(EN 1997-1, Eurocode 7:Geotechnical Design)
0 kommentar(er)
