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sbian197_preview.pdf

E-bog: ISBN 87-563-1269-5 Pris: Kr. 48,75 inkl. 25 pct. moms. 3 Indhold Forord ........................................................................................................... 4 Indledning ..................................................................................................... 5 Simpel fugtundersøgelse .............................................................................. 6 Tjekliste ................................................................................................... 6 Fugtmåling ............................................................................................... 8 Terrændæk ............................................................................................. 10 Krybekælder ........................................................................................... 11 Kælder .................................................................................................... 12 Risikovurdering ..................................................................................... 13 Fugtkilde ................................................................................................ 13 Udvidet fugtundersøgelse ........................................................................... 14 Indhentning af yderligere forhåndsinformation .................................... 14 Gennemførelse ....................................................................................... 14 Tolkning af observationer ...................................................................... 19 Litteratur ..................................................................................................... 23 4 Forord I Boligministeriets bekendtgørelse nr. 1024 af 17. december 1997 om regi- strering af bygningers tilstand før gennemførelse af ombygningsarbejder m.v.

dsen1991-4_preview_01.pdf

N O T F O R C O M M E R C IA L U S E O R R E P R O D U C T IO N EN 1991-4:2006 (E) 2 CONTENTS Page FOREWORD 5 BACKGROUND OF THE EUROCODE PROGRAMME ............................................................................................. 5 STATUS AND FIELD OF APPLICATION OF EUROCODES ...................................................................................... 6 NATIONAL STANDARDS IMPLEMENTING EUROCODES ..................................................................................... 6 LINKS BETWEEN EUROCODES AND HARMONIZED TECHNICAL SPECIFICATIONS (ENS AND ETAS) FOR PRODUCTS........................................................................................................................................................... 7 ADDITIONAL INFORMATION SPECIFIC TO EN1991-4........................................................................................ 7 NATIONAL ANNEX FOR EN1991-4..................................................................................................................... 7 SECTION 1 GENERAL 8 1.1 SCOPE ..................................................................................................................................................... 8 1.1.1 Scope of EN 1991 - Eurocode 1 ......................................................................................................... 8 1.1.2 Scope of EN 1991-4 actions on structures: silos and tanks................................................................. 8 1.2 NORMATIVE REFERENCES ................................................................................................................... 10 1.3 ASSUMPTIONS....................................................................................................................................... 11 1.4 DISTINCTION BETWEEN PRINCIPLES AND APPLICATION RULES ......................................................... 11 1.5 DEFINITIONS......................................................................................................................................... 11 1.6 SYMBOLS USED IN PART 4 OF EUROCODE 1 ........................................................................................ 15 1.6.1 Roman upper case letters .................................................................................................................. 15 1.6.2 Roman lower case letters .................................................................................................................. 16 1.6.3 Greek upper case letters .................................................................................................................... 19 1.6.4 Greek lower case letters .................................................................................................................... 20 1.6.5 Subscripts.......................................................................................................................................... 21 SECTION 2 REPRESENTATION AND CLASSIFICATION OF ACTIONS 22 2.1 REPRESENTATION OF ACTIONS ON SILOS ............................................................................................ 22 2.2 REPRESENTATION OF ACTIONS ON TANKS .......................................................................................... 23 2.3 CLASSIFICATION OF ACTIONS ON SILOS .............................................................................................. 23 2.4 CLASSIFICATION OF ACTIONS ON TANKS ............................................................................................ 23 2.5 ACTION ASSESSMENT CLASSIFICATION ............................................................................................... 23 SECTION 3 DESIGN SITUATIONS 25 3.1 GENERAL.............................................................................................................................................. 25 3.2 DESIGN SITUATIONS FOR STORED SOLIDS IN SILOS............................................................................. 25 3.3 DESIGN SITUATIONS FOR DIFFERENT SILO GEOMETRICAL ARRANGEMENTS .................................... 26 3.4 DESIGN SITUATIONS FOR SPECIFIC CONSTRUCTION FORMS ............................................................... 31 3.5 DESIGN SITUATIONS FOR STORED LIQUIDS IN TANKS ......................................................................... 32 3.6 PRINCIPLES FOR DESIGN FOR EXPLOSIONS ......................................................................................... 32 SECTION 4 PROPERTIES OF PARTICULATE SOLIDS 33 4.1 GENERAL.............................................................................................................................................. 33 4.2 PARTICULATE SOLIDS PROPERTIES ..................................................................................................... 34 4.2.1 General.............................................................................................................................................. 34 4.2.2 Testing and evaluation of solids properties....................................................................................... 35 4.2.3 Simplified approach.......................................................................................................................... 36 4.3 TESTING PARTICULATE SOLIDS ........................................................................................................... 36 4.3.1 Test procedures ................................................................................................................................. 36 4.3.2 Bulk unit weight γ ............................................................................................................................. 37 4.3.3 Coefficient of wall friction µ ............................................................................................................ 37 4.3.4 Angle of internal friction φi .............................................................................................................. 37 4.3.5 Lateral pressure ratio K..................................................................................................................... 37 4.3.6 Cohesion c ........................................................................................................................................ 38 4.3.7 Patch load solid reference factor Cop ............................................................................................... 38 SECTION 5 LOADS ON THE VERTICAL WALLS OF SILOS 40 5.1 GENERAL.............................................................................................................................................. 40 5.2 SLENDER SILOS..................................................................................................................................... 40 Single user license.