1、British StandardThe preparation of this British Standard was entrusted by the CivilEngineering and Building Structures Standards Policy Committee (CSB/-)to Technical Committee CSB/30 upon which the following bodies wererepresented:Association of Consulting EngineersAssociation of County CouncilsBrit
2、ish Constructional Steelwork AssociationBritish Precast Concrete Federation Ltd.British Railways BoardBritish Steel IndustryCement and Concrete AssociationConcrete SocietyConstructional Steel Research and Development OrganisationDepartment of the Environment (Building Research Establishment)Departme
3、nt of the Environment (Transport and Road Research Laboratory)Department of TransportFederation of Civil Engineering ContractorsGreater London CouncilInstitution of Civil EngineersInstitution of Highways and TransportationInstitution of Structural EngineersLondon Transport ExecutiveMinistry of Defen
4、ceSand and Gravel Association LimitedScottish Development DepartmentWelding InstituteThe following was also represented in the drafting of the standard, throughsubcommittees and panels:Coopted memberAmendments issued since publicationAmd. No. Date of issue CommentsContentsCommittees responsibleForew
5、ordPageInside front coverx12ScopeDefinitions and symbols2.1.1 General2.1.2 Partial load factors2.1.3 Materials2.233.13.23.344.1SymbolsLimit state philosophyGeneralServiceability limit stateUltimate limit stateDesign: generalLimit state requirements54.1.1 Serviceability limit states4.1.1.1 Cracking4.
6、1.1.2 Vibration4.1.1.3 Stress limitations4.1.2 Ultimate limit states4.1.2.1 Rupture or instability4.1.2.2 Vibration4.1.3 Other considerations4.1.3.1 Deflections4.1.3.2 Fatigue4.1.3.3 Durability684.2Loads, load combinations and partial factors fL and f34.2.1 Loads4.2.2 Serviceability limit state4.2.3
7、 Ultimate limit state4.2.4 Deflection94.3Properties of materials4.3.1 General4.3.2 Material properties4.3.2.1 Concrete4.3.2.2 Reinforcement and prestressing steel4.3.3 Values of m4.3.3.1 General4.3.3.2 Serviceability limit state4.3.3.3 Ultimate limit state4.3.3.4 Fatigue104.4Analysis of structure4.4
8、.1 General4.4.2 Analysis for serviceability limit state4.4.2.1 General4.4.2.2 Methods of analysis and their requirements4.4.3 Analysis for ultimate limit state11iii4.4.3.1 General4.4.3.2 Methods of analysis and their requirements4.5 Analysis of section4.5.1 Serviceability limit state4.5.2 Ultimate l
9、imit state4.6 Deflection4.7 Fatigue4.8 Combined global and local effects4.8.1 General4.8.2 Analysis of structure4.8.3 Analysis of section5 Design and detailing: reinforced concrete5.1 General5.1.1 Introduction5.1.2 Limit state design of reinforced concrete5.1.2.1 Basis of design5.1.2.2 Durability5.1
10、.2.3 Other limit states and considerations5.1.3 Loads5.1.4 Strength of materials5.1.4.1 Definition of strengths5.1.4.2 Characteristic strength of concrete5.1.4.3 Characteristic strength of reinforcement5.2 Structures and structural frames5.2.1 Analysis of structures5.2.2 Redistribution of moments5.3
11、 Beams5.3.1 General5.3.1.1 Effective span5.3.1.2 Effective width of flanged beams5.3.1.3 Slenderness limits for beams5.3.2 Resistance moment of beams5.3.2.1 Analysis of sections5.3.2.2 Design charts5.3.2.3 Design formulae5.3.3 Shear resistance of beams5.3.3.1 Shear stress5.3.3.2 Shear reinforcement5
12、.3.3.3 Enhanced shear strength of sections close to supports5.3.3.4 Bottom loaded beams5.3.4 Torsion5.3.4.1 General5.3.4.2 Torsionless systems5.3.4.3 Stresses and reinforcement5.3.4.4 Treatment of various cross sections5.3.4.5 Detailing5.3.5 Longitudinal shear5.3.6 Deflection in beams5.3.7 Crack con
13、trol in beams14151617181920215.4Slabs5.4.1 Moments and shear forces in slabs5.4.2 Resistance moments of slabs5.4.3 Resistance to in-plane forces5.4.4 Shear resistance of slabs5.4.4.1 Shear stress in solid slabs:5.4.4.2 Shear stresses in solid slabs under concentrated loads(including wheel loads)5.4.
14、4.3 Shear in voided slabs5.4.5 Deflection of slabs5.4.6 Crack control in slabs245.5Columns5.5.1 General5.5.1.1 Definitions5.5.1.2 Effective height of a column5.5.1.3 Slenderness limits for columns5.5.1.4 Assessment of strength5.5.2 Moments and forces in columns5.5.3 Short columns subject to axial lo
15、ad and bending about theminor axis5.5.3.1 General5.5.3.2 Analysis of sections5.5.3.3 Design charts for rectangular and circular columns5.5.3.4 Design formulae for rectangular columns5.5.3.5 Simplified design formulae for rectangular columns5.5.4 Short columns subject to axial load and either bending
16、 aboutthe major axis or biaxial bending5.5.5 Slender columns5.5.5.1 General5.5.5.2 Slender columns bent about a minor axis5.5.5.3 Slender columns bent about a major axis5.5.5.4 Slender columns bent about both axes5.5.6 Shear resistance of columns5.5.7 Crack control in columns252728295.6Reinforced co
17、ncrete walls5.6.1 General5.6.1.1 Definition5.6.1.2 Limits to slenderness5.6.2 Forces and moments in reinforced concrete walls5.6.3 Short reinforced walls resisting moments and axial forces5.6.4 Slender reinforced walls5.6.5 Shear resistance of reinforced walls5.6.6 Deflection of reinforced walls5.6.
18、7 Crack control in reinforced walls305.7Bases5.7.1 General5.7.2 Moments and forces in bases5.7.3 Design of bases5.7.3.1 Resistance to bending31iiiiv5.7.3.2 Shear5.7.3.3 Bond and anchorage5.7.4 Deflection of bases5.7.5 Crack control in bases5.8 Considerations affecting design details5.8.1 Constructio
19、nal details5.8.1.1 Sizes of members5.8.1.2 Accuracy of position of reinforcement5.8.1.3 Construction joints5.8.1.4 Movement joints5.8.2 Concrete cover to reinforcement5.8.3 Reinforcement: general considerations5.8.3.1 Groups of bars5.8.3.2 Bar schedule dimensions5.8.4 Minimum areas of reinforcement
20、in members5.8.4.1 Minimum area of main reinforcement5.8.4.2 Minimum area of secondary reinforcement5.8.4.3 Minimum area of links5.8.5 Maximum areas of reinforcement in members5.8.6 Bond anchorage and bearing5.8.6.1 Geometrical classification of deformed bars5.8.6.2 Local bond5.8.6.3 Anchorage bond5.
21、8.6.4 Effective perimeter of a bar or group of bars5.8.6.5 Anchorage of links5.8.6.6 Laps and joints5.8.6.7 Lap lengths5.8.6.8 Hooks and bends5.8.6.9 Bearing stress inside bends5.8.7 Curtailment and anchorage of reinforcement5.8.8 Spacing of reinforcement5.8.8.1 Minimum distance between bars5.8.8.2
22、Maximum distance between bars in tension5.8.9 Shrinkage and temperature reinforcement5.8.10 Arrangement of reinforcement in skew slabs5.8.10.1 General5.8.10.2 Solid slabs5.8.10.3 Voided slabs5.8.10.4 Solid composite slabs5.9 Additional considerations in the use of lightweightaggregate concrete5.9.1
23、General5.9.2 Durability5.9.3 Characteristic strength5.9.4 Shear resistance of beams5.9.5 Torsional resistance of slabs5.9.6 Deflection of beams5.9.7 Shear resistance of slabs5.9.8 Deflection of slabs32333536373839405.9.9 Columns5.9.9.1 General5.9.9.2 Short columns5.9.9.3 Slender columns5.9.10 Local
24、bond, anchorage bond and laps5.9.11 Bearing stress inside bends416.1Design and detailing: prestressed concrete6.1.1 Introduction6.1.2 Limit state design of prestressed concrete6.1.2.1 Basis of design6.1.2.2 Durability6.1.2.3 Other limit states and considerations6.1.3 Loads6.1.4 Strength of materials
25、6.1.4.1 Definition of strengths6.1.4.2 Characteristic strength of concrete6.1.4.3 Characteristic strength of prestressing tendons6.2Structures and structural frames426.2.1 Analysis of structures6.2.2 Redistribution of moments6.3Beams6.3.1 General6.3.1.1 Definitions6.3.1.2 Slender beams6.3.2 Serviceability limit state: flexure6.3.2.1 Section analysis6.3.2.2 Concrete compressiv
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