NCHRP Report 651: LRFD Design and Construction of Shallow Foundations for Highway Bridge Structures

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Table of Contents
Front Matter R1-R9
Summary 1-2
1.2 Engineering Design Methodologies 3-3
1.3 Load and Resistance Factor Design 4-9
1.4 Format for Design Factor Development 10-14
1.5 Bearing Capacity of Shallow Foundations 15-23
1.6 An Alternative Approach and Method of Analysis for Limit State Design of Shallow Foundations 24-32
1.7 Bearing Capacity of Shallow Foundations on Rock 33-39
1.8 Rock Classification and Properties 40-51
2.2 Methodology 52-55
2.3 Execution and Presentation 56-56
3.1 Design and Construction State of Practice 57-60
3.2 Assembled Databases 61-65
3.3 Determination of the Measured Strength Limit State for Foundations Under Vertical-Centric Loading 66-68
3.4 Determination of the Calculated Strength Limit States for the Case Histories (Foundations on Soils) 69-72
3.5 Uncertainty in the Bearing Capacity of Footings in/on Granular Soils Subjected to Vertical-Centric Loading 73-75
3.6 Uncertainty in the Bearing Capacity of Footings in/on Granular Soils Subjected to Vertical-Eccentric, Inclined-Centric, and Inclined-Eccentric Loading 76-81
3.7 Loading Direction Effect for Inclined-Eccentric Loading 82-84
3.8 Uncertainty in the Bearing Capacity of Footings in/on Rock 85-91
3.9 Uncertainties in the Friction Along the Soil-Structure Interface 92-99
4.2 Uncertainty in Vertical and Lateral Loading 100-103
4.3 Calibration Methodology 104-106
4.4 Examination of the Factor N as a Source of Uncertainty in Bearing Capacity Analysis 107-109
4.6 In-Depth Re-Examination of the Uncertainty in Bearing Capacity of Footings in/on Granular Soils Under Vertical-Centric Loading 110-115
4.7 In-Depth Re-Examination of the Uncertainty in Bearing Capacity of Footings in/on Granular Soils Under Vertical-Eccentric Loading 116-120
4.8 In-Depth Re-Examination of the Uncertainty in Bearing Capacity of Footings in/on Granular Soils Under Inclined-Centric Loading 121-122
4.9 In-Depth Re-Examination of the Uncertainty in Bearing Capacity of Footings in/on Granular Soils Under Inclined-Eccentric Loading 123-123
4.11 Goodman's (1989) Semi-Empirical Bearing Capacity Method for Footings in/on Rock 124-125
4.12 Carter and Kulhawy's (1988) Semi-Empirical Bearing Capacity Method for Footings in/on Rock 126-126
4.14 Sliding Friction Resistance 127-129
5.3 Examples Summary 130-131
References 132-138
Unpublished Material 139-139
Abbreviations used without definitions in TRB publications 140-140

Table of Contents

Front Matter R1-R9

Summary 1-2

1.2 Engineering Design Methodologies 3-3

1.3 Load and Resistance Factor Design 4-9

1.4 Format for Design Factor Development 10-14

1.5 Bearing Capacity of Shallow Foundations 15-23

1.6 An Alternative Approach and Method of Analysis for Limit State Design of Shallow Foundations 24-32

1.7 Bearing Capacity of Shallow Foundations on Rock 33-39

1.8 Rock Classification and Properties 40-51

2.2 Methodology 52-55

2.3 Execution and Presentation 56-56

3.1 Design and Construction State of Practice 57-60

3.2 Assembled Databases 61-65

3.3 Determination of the Measured Strength Limit State for Foundations Under Vertical-Centric Loading 66-68

3.4 Determination of the Calculated Strength Limit States for the Case Histories (Foundations on Soils) 69-72

3.5 Uncertainty in the Bearing Capacity of Footings in/on Granular Soils Subjected to Vertical-Centric Loading 73-75

3.6 Uncertainty in the Bearing Capacity of Footings in/on Granular Soils Subjected to Vertical-Eccentric, Inclined-Centric, and Inclined-Eccentric Loading 76-81

3.7 Loading Direction Effect for Inclined-Eccentric Loading 82-84

3.8 Uncertainty in the Bearing Capacity of Footings in/on Rock 85-91

3.9 Uncertainties in the Friction Along the Soil-Structure Interface 92-99

4.2 Uncertainty in Vertical and Lateral Loading 100-103

4.3 Calibration Methodology 104-106

4.4 Examination of the Factor N as a Source of Uncertainty in Bearing Capacity Analysis 107-109

4.6 In-Depth Re-Examination of the Uncertainty in Bearing Capacity of Footings in/on Granular Soils Under Vertical-Centric Loading 110-115

4.7 In-Depth Re-Examination of the Uncertainty in Bearing Capacity of Footings in/on Granular Soils Under Vertical-Eccentric Loading 116-120

4.8 In-Depth Re-Examination of the Uncertainty in Bearing Capacity of Footings in/on Granular Soils Under Inclined-Centric Loading 121-122

4.9 In-Depth Re-Examination of the Uncertainty in Bearing Capacity of Footings in/on Granular Soils Under Inclined-Eccentric Loading 123-123

4.11 Goodman's (1989) Semi-Empirical Bearing Capacity Method for Footings in/on Rock 124-125

4.12 Carter and Kulhawy's (1988) Semi-Empirical Bearing Capacity Method for Footings in/on Rock 126-126

4.14 Sliding Friction Resistance 127-129

5.3 Examples Summary 130-131

References 132-138

Unpublished Material 139-139

Abbreviations used without definitions in TRB publications 140-140