Supplement
AS 3774 SUPP 1-1997
[Withdrawn]Loads on bulk solids containers — Commentary (Supplement 1 to AS 3774-1996)
Provides background materials from which requirements are derived in AS 3774.
Published: 05/12/1997
Pages: 15
Table of contents
Cited references
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Table of contents
Header
About this publication
PREFACE
C4 LOAD CLASSIFICATION, LOAD COMBINATIONS, AND LOAD FACTORS
C4.1 GENERAL
C4.2 LOAD COMBINATIONS
C4.3 LOAD FACTORS
C6 DETERMINATION OF NORMAL SERVICE LOADS (GROUP B)
C6.1 RELEVANT PROPERTIES OF STORED BULK SOLID
C6.1.1 General
C6.1.2 Unit weight of bulk solid
C6.1.3 Angle of wall friction
C6.1.4 Effective angle of internal friction
C6.1.5 Consistent material properties
C6.2 INITIAL LOADS ON SYMMETRICALLY FILLED CONTAINER WALLS (LOAD TYPE B.2)
C6.2.1 Initial normal pressures on vertical walls
C6.2.1.1 Normal wall pressures
C6.2.1.2 Normal pressure in squat containers
C6.2.1.3 Overfilled squat containers
C6.2.1.4 Increases in normal wall pressures
C6.2.1.5 Normal wall pressures due to rapid filling of powders
C6.2.1.6 Pneumatic blending
C6.2.1.7 Impact loads on vertical walls
C6.2.1.8 Reduced normal wall pressures due to wall flexibility
C6.2.1.9 Minimum normal wall pressures
C6.2.1.10 Initial normal wall pressure increase due to vibration
C6.2.2 Initial frictional forces on vertical walls
C6.2.2.1 Frictional tractions
C6.2.2.2 Frictional tractions in squat containers
C6.2.2.3 Vertical forces in container walls
C6.2.3 Initial forces on container closures
C6.2.3.1 Vertical pressures in the stored solid
C6.2.3.2 Flat-bottomed containers
C6.2.3.3 Normal pressures on hopper walls
C6.2.3.4 Frictional tractions on hopper walls
C6.2.3.5 Impact loads on hoppers due to dumping
C6.2.3.6 Pressures on the end walls of a slot hopper
C6.3 LOADS INDUCED BY FLOW DURING SYMMETRICAL DISCHARGES (LOAD TYPE B.3)
C6.3.1 Method of determining symmetrical flow loadings
C6.3.2 Normal pressures on the vertical walls
C6.3.3 Friction on vertical walls
C6.3.3.1 Frictional tractions
C6.3.3.2 Vertical forces in container walls
C6.3.4 Vertical loads on container bottoms
C6.3.5 Normal pressures on hoppers
C6.3.6 Frictional tractions on hoppers
C6.4 INITIAL LOADS ON ECCENTRICALLY FILLED CONTAINER WALLS (LOAD TYPE B.2)
C6.4.1 Normal pressures on vertical walls
C6.4.2 Frictional tractions on vertical walls
C6.5 FLOW LOADS ON ECCENTRICALLY DISCHARGED CONTAINER WALLS (LOAD TYPE B.3)
C6.5.1 General
C6.5.2 Normal pressures on vertical walls
C6.5.2.1 General
C6.5.2.2 Pressure increases
C6.5.2.3 Pressure reductions
C6.6 LOADS ASSOCIATED WITH GATES AND FEEDERS
C6.6.2 Increased gate and feeder loads due to large drop heights and rapid fill rates
C6.6.3 Horizontal loads on containers due to unattached feeders
C6.7 LIVE LOADS ON PLATFORMS AND ROOFS (LOAD TYPE B.5)
C6.9 FORCES FROM LATERAL RESTRAINTS (LOAD TYPE B.7)
C6.9.1 Loads in lateral restraints
C6.9.2 Loads due to the container being used as a restraint
C6.10 LOADS ON INTERNAL STRUCTURAL ELEMENTS WITHIN THE STORED SOLID (LOAD TYPE B.8)
C6.10.1 General
C6.10.2 Vertical pressures on internal structural elements
C6.10.3 Horizontal pressures on internal structural elements
C6.10.4 Frictional tractions on internal structural elements
C6.10.5 Vertical forces in internal structural elements
C7 DETERMINATION OF ENVIRONMENTAL LOADS (GROUP C)
C7.1 WIND LOADS (LOAD TYPE C.1)
C7.1.2 Negative internal air pressure
C7.2 LOADS DUE TO DIFFERENTIAL SETTLEMENT OF FOUNDATIONS (LOAD TYPE C.2)
C7.2.1 Assessment of differential settlements
C7.2.2 Differential settlement under column-supported containers
C7.2.3 Differential settlement under ground-supported containers
C7.3 LOADS DUE TO DIFFERENTIAL TEMPERATURE (LOAD TYPE C.3)
C7.3.1 Assessment of differential temperature
C7.3.2 Temperature decrease in container walls
C7.3.3 Temperature differentials in supporting columns
C7.3.4 Storage of hot bulk solids
C7.4 SEISMIC LOADS (LOAD TYPE C.4)
C7.5 LOADS DUE TO SWELLING OF STORED BULK SOLIDS (LOAD TYPE C.5)
APPENDIX CC
APPENDIX CD
Cited references in this standard
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