Unified Design of Steel Structures, 1st Edition

by Louis F. Geschwindner

• ISBN13: 9780471475583
• ISBN10: 0471475580
• Edition: 1
• Format: Hardcover
• Copyright: 2007-08-01
• Publisher: WILEY

Summary

Study the design of steel building structures per the 2005 unified specification, ANSI/AISC 360-05 Specification for Structural Steel Buildings with this key resource. Author Louis F. Geschwindner first builds the foundation for steel design and then explores the various member types in more detail. He provides guidance for those new to the field as well as an excellent review for practicing engineers looking to learn the provisions of the unified specification and to convert their practice from the old specifications to the new one.

Author Biography

Louis F. Geschwindner, PhD, PE, is Vice President of Engineering and Research at the American Institute of Steel Construction and Professor Emeritus of Architectural Engineering at Pennsylvania State University.

Table of Contents

Introduction	p. 1
Scope	p. 1
Principles of Structural Design	p. 1
Parts of the Steel Structure	p. 2
Types of Steel Structures	p. 8
Bearing Wall Construction	p. 9
Beam-and-Column Construction	p. 9
Long-Span Construction	p. 10
High-Rise Construction	p. 10
Single-Story Construction	p. 11
Design Philosophies	p. 11
Fundamentals of Allowable Strength Design (ASD)	p. 13
Fundamentals of Load and Resistance Factor Design (LRFD)	p. 14
Inelastic Design	p. 15
Structural Safety	p. 15
Limit States	p. 17
Building Codes and Design Specifications	p. 18
Problems	p. 19
Loads, Load Factors, and Load Combinations	p. 20
Introduction	p. 20
Building Load Sources	p. 21
Dead Load	p. 21
Live Load	p. 21
Snow Loads	p. 22
Wind Load	p. 23
Seismic Load	p. 23
Special Loads	p. 23
Building Load Determination	p. 25
Dead Load	p. 25
Live Load	p. 25
Snow Load	p. 27
Wind Load	p. 28
Seismic Loads	p. 29
Load Combinations for ASD and LRFD	p. 30
Load Calculations	p. 31
Calibration	p. 34
Problems	p. 35
Steel Building Materials	p. 36
Introduction	p. 36
Applicability of the AISC Specification	p. 37
Steel for Construction	p. 39
Structural Steel Shapes	p. 42
ASTM A6 Standard Shapes	p. 42
Hollow Shapes	p. 45
Plates and Bars	p. 46
Built-up Shapes	p. 47
Chemical Components of Structural Steel	p. 48
Grades of Structural Steel	p. 50
Steel for Shapes	p. 50
Steel for Plates and Bars	p. 53
Steel for Fasteners	p. 53
Steel for Welding	p. 56
Steel for Shear Studs	p. 56
Availability of Structural Steel	p. 56
Problems	p. 57
Tension Members	p. 58
Introduction	p. 58
Tension Members in Structures	p. 59
Cross-Sectional Shapes for Tension Members	p. 61
Behavior and Strength of Tension Members	p. 63
Yielding	p. 64
Rupture	p. 64
Computation of Areas	p. 65
Gross Area	p. 66
Net Area	p. 66
Influence of Hole Placement	p. 70
Effective Net Area	p. 74
Design of Tension Members	p. 78
Block Shear	p. 81
Pin-Connected Members	p. 89
Eye-Bars and Rods	p. 92
Built-up Tension Members	p. 93
Truss Members	p. 93
Bracing Members	p. 93
Problems	p. 94
Compression Members	p. 96
Compression Members in Structures	p. 96
Cross-Sectional Shapes for Compression Members	p. 98
Compression Member Strength	p. 99
Euler Column	p. 99
Other Boundary Conditions	p. 102
Combination of Bracing and End Conditions	p. 103
Real Column	p. 106
AISC Provisions	p. 108
Additional Limit States for Compression	p. 115
Length Effects	p. 115
Effective Length for Inelastic Columns	p. 121
Slender Elements in Compression	p. 124
Column Design Tables	p. 128
Torsional Buckling and Flexural-Torsional Buckling	p. 133
Single-Angle Compression Members	p. 134
Built-Up Members	p. 136
Problems	p. 137
Bending Members	p. 139
Bending Members in Structures	p. 139
Strength of Beams	p. 140
Design of Compact Laterally Supported Wide Flange Beams	p. 145
Design of Compact Laterally Unsupported Wide Flange Beams	p. 149
Lateral Torsional Buckling	p. 149
Moment Gradient	p. 153
Design of Noncompact Beams	p. 159
Local Buckling	p. 159
Flange Local Buckling	p. 160
Web Local Buckling	p. 162
Design of Beams for Weak Axis Bending	p. 164
Design of Beams for Shear	p. 164
Continuous Beams	p. 165
Plastic Analysis and Design of Continuous Beams	p. 167
Provisions for Double-Angle and Tee Members	p. 171
Yielding	p. 171
Lateral-Torsional Buckling	p. 171
Flange-Local Buckling	p. 171
Single-Angle Bending Members	p. 173
Yielding	p. 174
Leg Local Buckling	p. 174
Lateral-Torsional Buckling	p. 175
Members in Biaxial Bending	p. 175
Serviceability Criteria for Beams	p. 175
Deflection	p. 176
Vibration	p. 176
Drift	p. 177
Concentrated Forces on Beams	p. 179
Problems	p. 179
Plate Girders	p. 181
Background	p. 181
Homogeneous Plate Girders in Bending	p. 183
Noncompact Web Plate Girders	p. 184
Slender Web Plate Girders	p. 188
Homogeneous Plate Girders in Shear	p. 195
Nontension Field Action	p. 196
Tension Field Action	p. 197
Stiffeners for Plate Girders	p. 200
Intermediate Stiffeners	p. 200
Bearing Stiffeners	p. 202
Bearing Stiffener Design	p. 205
Problems	p. 208
Beam-Columns and Frame Behavior	p. 209
Introduction	p. 209
Second-Order Effects	p. 210
Interaction Principles	p. 212
Interaction Equations	p. 213
Braced Frames	p. 216
Moment Frames	p. 223
Specification Provisions for Stability Analysis and Design	p. 231
Initial Beam-Column Selection	p. 232
Beam-Column Design Using Manual Part 6	p. 234
Combined Simple and Rigid Frames	p. 237
Partially Restrained (PR) Frames	p. 246
Bracing Design	p. 255
Column Bracing	p. 256
Beam Bracing	p. 256
Frame Bracing	p. 257
Problems	p. 259
Composite Construction	p. 264
Introduction	p. 264
Advantages and Disadvantages of Composite Beam Construction	p. 267
Shored versus Unshored Construction	p. 268
Effective Flange	p. 268
Strength of Composite Beams and Slab	p. 269
Fully Composite Beams	p. 270
Partially Composite Beams	p. 275
Composite Beam Design Tables	p. 278
Negative Moment Strength	p. 282
Shear Stud Strength	p. 283
Number and Placement of Shear Studs	p. 284
Composite Beams with Formed Metal Deck	p. 285
Deck Ribs Perpendicular to Steel Beam	p. 286
Deck Ribs Parallel to Steel Beam	p. 287
Fully Encased Steel Beams	p. 293
Selecting a Section	p. 293
Serviceability Considerations	p. 297
Deflection During Construction	p. 297
Vibration Under Service Loads	p. 298
Live Load Deflections	p. 298
Composite Columns	p. 301
Composite Beam-Columns	p. 304
Problems	p. 305
Connection Elements	p. 307
Introduction	p. 307
Basic Connections	p. 307
Beam-to-Column Connections	p. 309
Fully Restrained Connections	p. 310
Simple and Partially Restrained Connections	p. 311
Mechanical Fasteners	p. 312
Common Bolts	p. 312
High-Strength Bolts	p. 313
Bolt Holes	p. 314
Bolt Limit States	p. 315
Bolt Shear	p. 315
Bolt Bearing	p. 317
Bolt Tension	p. 318
Slip	p. 325
Combined Tension and Shear in Bearing-Type Connections	p. 325
Welds	p. 326
Welding Processes	p. 326
Types of Welds	p. 327
Weld Sizes	p. 328
Weld Limit States	p. 328
Fillet Weld Strength	p. 329
Groove Weld Strength	p. 334
Connecting Elements	p. 334
Connecting Elements in Tension	p. 334
Connecting Elements in Compression	p. 335
Connecting Elements in Shear	p. 335
Block Shear Strength	p. 335
Problems	p. 338
Simple Connections	p. 341
Types of Simple Connections	p. 341
Simple Shear Connections	p. 342
Double-Angle Connections: Bolted-Bolted	p. 344
Double-Angle Connections: Welded-Bolted	p. 354
Double-Angle Connections: Bolted-Welded	p. 358
Double-Angle Connections: Welded-Welded	p. 360
Single-Angle Connections	p. 360
Single-Plate Shear Connections	p. 368
Seated Connections	p. 373
Light Bracing Connections	p. 378
Beam-Bearing Plates and Column Base Plates	p. 390
Problems	p. 391
Moment Connections	p. 393
Types of Moment Connections	p. 393
Limit States	p. 395
Moment Connection Design	p. 396
Direct Welded Flange Connection	p. 397
Welded Flange Plate Connection	p. 401
Bolted Flange Plate Connection	p. 407
Column Stiffening	p. 414
Flange Local Bending	p. 415
Web Local Yielding	p. 415
Web Crippling	p. 416
Web Compression Buckling	p. 416
Web Panel Zone Shear	p. 416
Problems	p. 422
Steel Systems for Seismic Resistance	p. 424
Introduction	p. 424
Expected Behavior	p. 425
Moment-Frame Systems	p. 427
Special Moment Frames (SMF)	p. 428
Intermediate Moment Frames (IMF) and Ordinary Moment Frames (OMF)	p. 430
Braced-Frame Systems	p. 430
Special Concentrically Braced Frames (SCBF)	p. 431
Ordinary Concentrically Braced Frames (OCBF)	p. 433
Eccentrically Braced Frames (EBF)	p. 434
Other Framing Systems	p. 435
Special Truss Moment Frames (STMF)	p. 435
Buckling-Restrained Braced Frames (BRBF)	p. 436
Special Plate Shear Walls (SPSW)	p. 437
Composite Systems	p. 437
Other General Requirements	p. 438
Bolted and Welded Connections	p. 438
Protected Zones	p. 438
Local Buckling	p. 439
Column Requirements	p. 439
Column Bases	p. 439
Conclusions	p. 439
Problems	p. 439
Index	p. 441
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