is.456.2000 - plain & reinforced concrete_part2

8/16/2019 Is.456.2000 - Plain & Reinforced Concrete_Part2

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IS 456:

13.4 ConstructionJoints and Cold Joints

13.5 Curing

13.6 Supervision

4

CONCRETING UNDER SPECIAL

Cosornoss

14 1 Work in

Extreme

Weather

Conditions

14.2 Under Water Concreting

5 SAMPLING AND STRENGTH OF

DESIGNED

CONCRETEMIX

15 1 General

15.2

Frequencyof

Sampling

IS TestSpecimen

15.4 TestResultsof Sample

6

ACCEPTANCE

CRITERIA

7

INS crlON AND TESTING OF

STRUCTURE

SECTION 3 GENERAL

DESIGN

CONSIDERATION

8 BASES RlR DESIGN

18 1 Aim of

Design

18.2 Methodsof Design

18.3 Durability Workmanship and Materials

18.4 Design Process

9

LOADS

AND

FORCES

t9.1 General

19.2 Dead Loads

19 3 ImposedLoads WindLoads and SnowLoads

19.4 Earthquake

Forces

19.5 Shrinkage CreepandTemperature Effects

19.6 Other ForcesandEffects

J9.7 Combinationof Loads

19.8 DeadLoad Counteracting Other Loads andForces

19.9

Design

Load

20 ST ILITY OF THE STRUC lJRE

2 1 Overturning

20.2 Sliding

20.3 ProbableVariation

in

DeadLoad

20.4 MomentConnection

20.5

LateralSway

FIRE REsiSTANCE

22

ANALYSIS

22.1 General

22.2 EffectiveSpan

22.3 Stiffness

6

PAGE

27

27

27

27

27

27

29

29

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9

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9

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3

3

32

3

3

3

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3

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34

34

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22.4 Structural Frames

22.5 Moment and Shear Coefficients for Continuous Beams

22.6 Critical Sections for Moment and Shear

22.7 Redistribution

of

Moments

3 BEAMS

23.0 Effective Depth

23.1 T Beams and L Beams

23.2 Control

of

Deflection

23.3

Slenderness Limits for

Beams

to Ensure Lateral Stability

4

SOLID SLABS

24. 1 General

24.2 Slabs Continuous Over Supports

24.3 Slabs Monoli thic with Supports

24.4 Slabs Spanning in Two Directions at Right Angles

24.5 Loads on Supporting Beams

5 COMPRESSION MEMBERS

25.1 Definitions

25.2 Effective Length

of

Compression Members

25.3 Slenderness Limits for Columns

25.4 Minimum Eccentricity

6

REQUIREMENTS QOVERNING REINFORCEMENT AND

DETAILING

26. I General

26.2 Development

Stress in Reinforcement

26.3

Spacing of

Reinforcement

26.4 Nominal Cover to Reinforcement

26.5 Requirements

of

Reinforcement for Structural Members

27 EXPANSION

JOINTS

SECTION 4 SPECIAL DESIGN REQUIREMENTS FOR

STRUCTURAL MEMBERS AND SYSTEMS

IS 56 :2000

P G

35

35

36

36

36

36

36

37

39

39

39

39

39

4

4

4

42

42

42

4

42

42

45

46

46

50

28

CONCRETE CORBELS

5

28.1

General

5

28.2

Design

5

29

DEEP BEAMS

5

29.1

General

5

29.2

Lever Arm

29.3

Reinforcement

5

30

RIBBED

HOLU W BLOCK

OR VOlDEn SLAB

5

30.1 General

52

30.2 Analysis

of Structure

5

30.3

Shear

5

30.4

Deflection

5

7


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IS 6: 2

PAGB

3 5 Size and Position

of

Ribs

3 6 Hollow Blocks and Formers

3 7 Arrangement of Reinforcement

3 8 PrecastJoists

and

HollowFillerBlocks

31

FL T SLABS

33

STAIRS

33 1 Effective Span

of

Stairs

33 2 Distribution of Loadingon Stairs

33 3 Depth

of

Section

34

FOOT NOS

34 J

General

34 2 Moments andForces

34 3 Tensile Reinforcement

34 4 Transfer ofLoad at the Base of Column

34 5 Nominal Reinforcement

31 1

31 2

31 3

31 4

31 5

31 6

31 7

31 8

32

WAUS

32 1

32 2

32 3

32 4

3 S

General

Proportioning

Detenninationof Bendin Moment

Direct Desip Method

Equivalent

Fnme

Method

Shearin Flat Slab

Slab Reinforcement

Openingsin Flat Slabs

General

EmpiricalDesignMethodfor Subjected to Inplane Vertical Loads

WallsSubjectedto CombinedHorizontal andVertical Forces

Designfor Horizontal Shear

Minimum Requirements for Reinforcement in

Walls

S

52

53

53

5

53

S3

S3

54

5 6

S

59

61

61

61

61

62

62

62

63

63

63

63

63

63

64

65

6S

66

SECTION

5

STRUCTURAL

DESIGN LIMIT

STATE METHOD)

3S

SAFETY

AND

SERVICEAlIUI Y

RsoUIREMBNTS

3S

General

35 2 Limit Stateof Collapse

35 3 Limit States ofServiceability

3S 4

OtherLimitStates

36

CHARACTBRISTIC AND EsIGN

V

Ltms AND PAR11AL

SAFETY

FACIORS

36 Ch8rIcteristicStrenath of Materials

36 2 Characteristic

Loads

36 3

Desip

Values

36 4 Partial Safety Factors

37 ANALYSIS

37 1

Analysis

of

Structure

8

67

67

67

67

67

67

67

67

68

68

68

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38 LIMIT STATB OPCOLLAPSE: FLEXURE

38.1 A lumptions

39 M T STATB

OF

COUAPSS: COMPRESSION

39.1

Assumptions

39 2 MinimumEccentricity

39 3 ShortAxiallyLoaded Members inCompression

39 4 Compression Members withHelicalReinforcement

39 5 Memben Subjected toCombined AxialLoadand

~ i x i l

Bendins

39 6 Memben Subjected

toCombined

AxialLoad

andBiaxial Bending

39 7 SlenderCompression

Members

40 LlMrr STATS OP

COLLAPSE:

SH R

40 1 Nominal Shear Stress

40 2 DesianShear

Strensth

of

Concrete

40 3 Minimum ShearReinforcement

40 4

DesiSD of

Shear Reinforcement

4O.S

Bnhanced

ShearStrength of

Sections Close to

Supports

41 LIMrr

STATE

OP

COLLAPSB

:

TORSION

41 1 General

41 2 Critical Section

41 3 Shear and

Torsion

41 4 Reinforcement

in

Members Subjected to

Torsion

42 M T

STATE

OFSBRVlCEABD.nY:

DEFLECTION

42 1 FlexuralMembers

43

M T

STATE OF SERVICEABILITY CRACKING

43 1 FlexuralMembers

43 2 o m p r ~ i o n

Members

ANNEX

A LIST OF

REFERRED INDIAN STANDARDS

ANNEXB STRUCTURAL

DESIGN

WORKING STRESS METHOD

B-1

GENERAL

B 1 1 General Design Requirements

B l 2 Redistribution of

Moments

B l 3 Assumptions forDesign of

Members

B-2

PBRMIsslBLB STRESSBS

8 2 1 Permissible Stresses in Concrete

8 2 2 Permissible Stresses in Steel Reinforcement

B 2 3 Increase in Permissible Stresses

B 3 PBRMIssIBLE LoADS INCOMPRBSSION MEMBERS

B 3 1 Pedestals and Sbort Columns withLateral Ties

8 3 2

Shon

Columns

with

Helical Reinforcement

B 3 3

Lon

Columns

8 3 4

Composite

Columns

e 815 07 3

\r.

IS 456: 1000

PAGE

69

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7

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12

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80

80

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I S 6 : ~

B 4

MEMBBRS SUlJBCTID TO COMBINED

x L

loAD AND BINDING

8-4.1 De iID aed on Uncracked Section

B-4.2 Delilft

Baed

on Cracked Section

B-4.3 Members Subjected to Combined Direct

Load

and Flexure

D S

SHEAR

B S 1 Nominal

ShearStress .

B-5 2

neaip

ShearStrenlth ofConcrete

B S.3 Minimum Shear

Reinforcement

B-5.4 Desiln ofShearReinforcement

B · .

Enhanced Shear Strength of SectionsClose to Supports

B 6 TORSION

B 6 1

General

B-6.2 Critical

Section

B-6.3 Shear andTorsion

B-6.4 Reinforcement inMembers Subjected to Torsion

ANNEX

C CALCULATION OF

DEFLECTION

e l

TOTAL

D8PLIIcnON

C 2

SHOIlT

TBIM

DBPLICTION

C-3

DBPLECI10N

DuE

TO SHRINKAGE

C 4 DIFLECI10N DUE

TO

CREEP

ANNEX D

SLABS SPANNING

INTWO

DIRECTIONS

0·1

IUmt INID

SLAM

D-2

SIM ty

SuppotnS SUBS

ANNEX

B

SPPRCTIVI LaNOTHOFCOLUMNS

ANNEX

F CALCULAnONOF CRACK WID1lI

ANNEX

G MOM NTSOP ltBSlSTANCB FOR

RECTANGULAR

AND T-SECI10NS

G l RscrANOULAR SBC NS

0-1.1 Sections without Comprealion Reinforcement

0-1.2 Sections with Compression Reinforcement

0 2

FLANOED SEC110N

ANNEX

H

COMMITTEE

COMPOSITION

10

PAGI

83

83

83

83

83

83

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86

86

86

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88

88

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90

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95

96

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96

98

is.456.2000 - plain & reinforced concrete_part2

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