Design of steel structures
Negi, L. S.
Design of steel structures - Ed.2 - New Delhi Tata McGraw Hill Pub. Company Ltd. 2006 - x,317p.
CONTENTS
Preface to the Second Edition v
Preface to the First Edition VI
1. Materials and Specifications 1
1.1 Rolled Steel Sections 1
1.2 Types of Structural Steels 2
1.3 Specifications 2
2. Structural Fasteners 4
2.1 Riveting 4
2.2 Bolted Joints 5
2.3 Types of Riveted and Bolted Joints 6
2.4 Definition 6
2.5 Failure of a Riveted Joint 8
2.6 Strength of Riveted/Bolted Joint 9
2.7 Assumptions in the Theory of Riveted Joints 11
2.8 Efficiency of a Joint 12
2.9 Design of Riveted Joints for Axially Loaded Members 16
2.10 Welded Joints 21
2.11 Advantages of Welded Joints 22
2.12 Disadvantages of Welded Joints 22
2.13 Types of Welds and Their Symbols 23
2.14 Design of Fillet Welds 25
2.15 Design of Butt Weld 31
2.16 Design of Plug and Slot Welds 32
Problems 33
3. Eccentric Connections 35
3.1 Introduction 35
3.2 Riveted Joints Subjected to Moment Acting in the Plane of the Joint 35
3.3 Rivets and Bolts in Tension and Shear 36
3.4 Design of Eccentric Connections 38
3.5 Butt-Welded Joint Loaded Eccentrically 45
3.6 Fillet-Welded Joint Loaded Eccentricity 46
Problems 51
4. Tension Members 54
4.1 Introduction 54
4.2 Net Sectional Area 54
4.3 Permissible Stress 58
4.4 Design of Axially Loaded Tension Member 63
4.5 Lug Angle 7I
4.6 Tension Splice 73
Problems 75
5. Compression Members 77
5.1 Introduction 77
5.2 Strength of an Axially Loaded Compression Member 77
5.3 Effective Length 78
5.4 Maximum Slenderness Ratio 80
5.5 Compression Member Composed of Two Components Back-to-Back 80
5.6 Typical Cross-Sections of Compression Members 83
5.7 Design of Compression Members 88
5.8 Lacing and Battening for Built-Up Compression Member 93
5.9 Column Bases I04
5.10 Slab Base 104
5.11 Gusseted Base I 06
5.12 Grillage Foundation 109
5.13 Column Splices 112
Problems 114
6. Beams 116
6.1 Introduction 116
6.2 Design Procedure 116
5.3 Built-Up Beams 137
6.4 Plate Thickness 139
6.5 Simple Beam End Connections 141I
6.6 Gantry Girders 148
6.7 Problems 156
7. Beam Column 158
7.1 Introduction 158
7.2 Eccentricity of Load 159
7.3 Eccentrically Loaded Base Plates 162
8. Plate Girder 167
8.1 Introduction I67
8.2 Economical Depth and Self-weight of Plate Girder I68
8.3 Design of Web 170
8.4 Design of Flanges 172
8.5 Curtailment of Flange Plates 177
8.6 Riveted Connections 178
8.7 Web Stiffeners 180
8.8 Web Splice 183
8.9 Flange Splice 190
9. Industrial Sheds
9.1 Components of an Industrial Shed 201
9.2 Loads 204
Problems 223
10. Plastic Theory of Structure
10.1 Stress-Strain Relation of Mild Steel 225
10.2 Elastic Design Versus Ultimate Load Design 226
10.3 Plastic Bending of Beams 226
10.4 Shape Factor 227
10.5 Load Factor 228
10.6 Plastic Analysis 235
10.7 Procedure for Plastic Analysis 235
10.8 Effect of Axial Force on Plastic Moment 249
10.9 Design Consideration 250
Problems 256
11. Timber Structures 261
11.1 Introduction 261
11.2 Average Permissible Stress and Modification Factors 262
11.3 Design of Timber Beams 263
11.4 Timber Columns 266
11.5 Combined Bending and Axial Stress 269
17.6 Nailed Joints 275
11.7 Arrangement of Nails in a Joint 276
11.8 Strength of Nailed Joint 278
11.9 Bolted Construction 280
Problems 287
Appendix A: Rolled Steel Sections 288
Appendix B: Gravity Loads, Wind Load Factors 306
Appendix C: Earthquake Load as per IS: 1893-1984 314
Index 316
0074623052
624.1821 / NEG
Design of steel structures - Ed.2 - New Delhi Tata McGraw Hill Pub. Company Ltd. 2006 - x,317p.
CONTENTS
Preface to the Second Edition v
Preface to the First Edition VI
1. Materials and Specifications 1
1.1 Rolled Steel Sections 1
1.2 Types of Structural Steels 2
1.3 Specifications 2
2. Structural Fasteners 4
2.1 Riveting 4
2.2 Bolted Joints 5
2.3 Types of Riveted and Bolted Joints 6
2.4 Definition 6
2.5 Failure of a Riveted Joint 8
2.6 Strength of Riveted/Bolted Joint 9
2.7 Assumptions in the Theory of Riveted Joints 11
2.8 Efficiency of a Joint 12
2.9 Design of Riveted Joints for Axially Loaded Members 16
2.10 Welded Joints 21
2.11 Advantages of Welded Joints 22
2.12 Disadvantages of Welded Joints 22
2.13 Types of Welds and Their Symbols 23
2.14 Design of Fillet Welds 25
2.15 Design of Butt Weld 31
2.16 Design of Plug and Slot Welds 32
Problems 33
3. Eccentric Connections 35
3.1 Introduction 35
3.2 Riveted Joints Subjected to Moment Acting in the Plane of the Joint 35
3.3 Rivets and Bolts in Tension and Shear 36
3.4 Design of Eccentric Connections 38
3.5 Butt-Welded Joint Loaded Eccentrically 45
3.6 Fillet-Welded Joint Loaded Eccentricity 46
Problems 51
4. Tension Members 54
4.1 Introduction 54
4.2 Net Sectional Area 54
4.3 Permissible Stress 58
4.4 Design of Axially Loaded Tension Member 63
4.5 Lug Angle 7I
4.6 Tension Splice 73
Problems 75
5. Compression Members 77
5.1 Introduction 77
5.2 Strength of an Axially Loaded Compression Member 77
5.3 Effective Length 78
5.4 Maximum Slenderness Ratio 80
5.5 Compression Member Composed of Two Components Back-to-Back 80
5.6 Typical Cross-Sections of Compression Members 83
5.7 Design of Compression Members 88
5.8 Lacing and Battening for Built-Up Compression Member 93
5.9 Column Bases I04
5.10 Slab Base 104
5.11 Gusseted Base I 06
5.12 Grillage Foundation 109
5.13 Column Splices 112
Problems 114
6. Beams 116
6.1 Introduction 116
6.2 Design Procedure 116
5.3 Built-Up Beams 137
6.4 Plate Thickness 139
6.5 Simple Beam End Connections 141I
6.6 Gantry Girders 148
6.7 Problems 156
7. Beam Column 158
7.1 Introduction 158
7.2 Eccentricity of Load 159
7.3 Eccentrically Loaded Base Plates 162
8. Plate Girder 167
8.1 Introduction I67
8.2 Economical Depth and Self-weight of Plate Girder I68
8.3 Design of Web 170
8.4 Design of Flanges 172
8.5 Curtailment of Flange Plates 177
8.6 Riveted Connections 178
8.7 Web Stiffeners 180
8.8 Web Splice 183
8.9 Flange Splice 190
9. Industrial Sheds
9.1 Components of an Industrial Shed 201
9.2 Loads 204
Problems 223
10. Plastic Theory of Structure
10.1 Stress-Strain Relation of Mild Steel 225
10.2 Elastic Design Versus Ultimate Load Design 226
10.3 Plastic Bending of Beams 226
10.4 Shape Factor 227
10.5 Load Factor 228
10.6 Plastic Analysis 235
10.7 Procedure for Plastic Analysis 235
10.8 Effect of Axial Force on Plastic Moment 249
10.9 Design Consideration 250
Problems 256
11. Timber Structures 261
11.1 Introduction 261
11.2 Average Permissible Stress and Modification Factors 262
11.3 Design of Timber Beams 263
11.4 Timber Columns 266
11.5 Combined Bending and Axial Stress 269
17.6 Nailed Joints 275
11.7 Arrangement of Nails in a Joint 276
11.8 Strength of Nailed Joint 278
11.9 Bolted Construction 280
Problems 287
Appendix A: Rolled Steel Sections 288
Appendix B: Gravity Loads, Wind Load Factors 306
Appendix C: Earthquake Load as per IS: 1893-1984 314
Index 316
0074623052
624.1821 / NEG