Nueva Edición del libro clásico para estudiantes de grado.

Transcription

1 Nueva Edición del libro clásico para estudiantes de grado. Ha aparecido la quinta edición del que ya se ha convertido en uno de los libros más vendidos de Diseño de estructuras de Acero para su uso en la enseñanza universitaria: La quinta edición del libro de texto de Jack Mc Cormac. Structural Steel Design (5th Edition) by Jack C. McCormac and Stephen F. Csernak Este libro es por muchos considerado como el ideal para los cursos de grado. También puede ser usado como referencia para los profesionales: La nueva edición ha sido actualizado de acuerdo al Manual 2010 de la AISC. Su diseño permite que el docentes enseñe usando tanto el método de diseño LFRD como ASD (el material que corresponde a este último método es sombreado a lo largo del texto). Ver novedades y contenidos de esta edición: New To This Edition Publication Date: 2011 ISBN-10: ISBN-13: Edition: 5 The authors major objective in preparing this new edition was to update the text to conform to both the American Institute of Steel Construction (AISC) 2010 Specification for Structural Steel Buildings and the 14th edition of the AISC Steel Construction Manual published in Several changes to the text were made to the textbook in this edition: 1. End of chapter Problems for Solution have been added for Chapter 1 of the textbook. 2. The load factors and load combinations defined in Chapter 2 of the textbook and used throughout the book in example problems and end of chapter problems for solution have been revised to meet those given in the ASCE 7-10 and Part 2 of the AISC Steel Construction Manual. 3. The classification of compression sections for local buckling defined in Chapter 5 of the textbook has been revised to the new definition given in Section B4.1 of the new AISC Specification. For compression, sections are now classified as non-slender element or slender element sections.

2 4. The AISC Specification provides several methods to deal with stability analysis and the design of beam-columns. In Chapter 7 of the textbook, the Effective Length Method (ELM) is still used, though a brief introduction to the Direct Analysis Method (DM) has been added. A more comprehensive discussion of the DM is reserved for Chapter 11 of the text. 5. In Chapter 11 of the textbook, both the Direct Analysis Method and the Effective Length Method are presented for the analysis and design of beam-columns.this is to address the fact that the presentation of the Direct Analysis Method was moved from an appendix to Chapter C of the new AISC Specification while the Effective Length Method moved from Chapter C to Appendix Most of the end of chapter Problems for Solution for Chapters 2 through 11 have been revised. For Chapters 12 through 18 about half the problems have been revised. 7. Various photos were updated throughout the textbook. Table of Contents Contents Preface iii CHAPTER 1 Introduction to Structural Steel Design Advantages of Steel as a Structural Material Disadvantages of Steel as a Structural Material Early Uses of Iron and Steel Steel Sections Metric Units Cold-Formed Light-Gage Steel Shapes Stress Strain Relationships in Structural Steel Modern Structural Steels Uses of High-Strength Steels Measurement of Toughness Jumbo Sections Lamellar Tearing Furnishing of Structural Steel 27

3 1.14 The Work of the Structural Designer Responsibilities of the Structural Designer Economical Design of Steel Members Failure of Structures Handling and Shipping Structural Steel Calculation Accuracy Computers and Structural Steel Design Problems for Solution 38 CHAPTER 2 Specifications, Loads, and Methods of Design Specifications and Building Codes Loads Dead Loads Live Loads Environmental Loads Load and Resistance Factor Design (LRFD) and Allowable Strength Design (ASD) Nominal Strengths Shading Computation of Loads for LRFD and ASD Computing Combined Loads with LRFD Expressions Computing Combined Loads with ASD Expressions Two Methods of Obtaining an Acceptable Level of Safety Discussion of Sizes of Load Factors and Safety Factors Author s Comment Problems for Solution 60

4 CHAPTER 3 Analysis of Tension Members Introduction Nominal Strengths of Tension Members Net Areas Effect of Staggered Holes Effective Net Areas Connecting Elements for Tension Members Block Shear Problems for Solution 94 CHAPTER 4 Design of Tension Members Selection of Sections Built-Up Tension Members Rods and Bars Pin-Connected Members Design for Fatigue Loads Problems for Solution 125 CHAPTER 5 Introduction to Axially Loaded Compression Members General Residual Stresses Sections Used for Columns Development of Column Formulas The Euler Formula End Restraint and Effective Lengths of Columns Stiffened and Unstiffened Elements Long, Short, and Intermediate Columns 145

5 5.9 Column Formulas Maximum Slenderness Ratios 150 CHAPTER 6 Design of Axially Loaded Compression Members Introduction AISC Design Tables Column Splices Built-Up Columns Built-Up Columns with Components in Contact with Each Other Connection Requirements for Built-Up Columns Whose Components Are in Contact with Each Other Built-Up Columns with Components not in Contact with Each Other Single-Angle Compression Members Sections Containing Slender Elements Flexural-Torsional Buckling of Compression Members Problems for Solution 196 CHAPTER 7 Design of Axially Loaded Compression Members (Continued) and Column Base Plates Introduction Further Discussion of Effective Lengths Frames Meeting Alignment Chart Assumptions Frames Not Meeting Alignment Chart Assumptions as to Joint Rotations Stiffness-Reduction Factors Columns Leaning on Each Other for In-Plane Design Base Plates for Concentrically Loaded Columns Problems for Solution 232

6 CHAPTER 8 Introduction to Beams Types of Beams Sections Used as Beams Bending Stresses Plastic Hinges Elastic Design The Plastic Modulus Theory of Plastic Analysis The Collapse Mechanism The Virtual-Work Method Example Problems Problems for Solution Location of Plastic Hinge for Uniform Loadings Continuous Beams Building Frames Problems for Solution 254 CHAPTER 9 Design of Beams for Moments Introduction Yielding Behavior Full Plastic Moment, Zone Design of Beams, Zone Lateral Support of Beams Introduction to Inelastic Buckling, Zone Moment Capacities, Zone Elastic Buckling, Zone Design Charts 285

7 9.9 Noncompact Sections Problems for Solution 295 CHAPTER 10 Design of Beams Miscellaneous Topics (Shear, Deflection, etc.) Design of Continuous Beams Shear Deflections Webs and Flanges with Concentrated Loads Unsymmetrical Bending Design of Purlins The Shear Center Beam-Bearing Plates Lateral Bracing at Member Ends Supported on Base Plates Problems for Solution 340 CHAPTER 11 Bending and Axial Force Occurrence Members Subject to Bending and Axial Tension First-Order and Second-Order Moments for Members Subject to Axial Compression and Bending Direct Analysis Method (DAM) Effective Length Method (ELM) Approximate Second-Order Analysis Beam Columns in Braced Frames Beam Columns in Unbraced Frames Design of Beam Columns Braced or Unbraced Problems for Solution 386

8 CHAPTER 12 Bolted Connections Introduction Types of Bolts History of High-Strength Bolts Advantages of High-Strength Bolts Snug-Tight, Pretensioned, and Slip-Critical Bolts Methods for Fully Pretensioning High-Strength Bolts Slip-Resistant Connections and Bearing-Type Connections Mixed Joints Sizes of Bolt Holes Load Transfer and Types of Joints Failure of Bolted Joints Spacing and Edge Distances of Bolts Bearing-Type Connections Loads Passing Through Center of Gravity of Connections Slip-Critical Connections Loads Passing Through Center of Gravity of Connections Problems for Solution 423 CHAPTER 13 Eccentrically Loaded Bolted Connections and Historical Notes on Rivets Bolts Subjected to Eccentric Shear Bolts Subjected to Shear and Tension (Bearing-Type Connections) Bolts Subjected to Shear and Tension (Slip-Critical Connections) Tension Loads on Bolted Joints Prying Action Historical Notes on Rivets 454

9 13.7 Types of Rivets Strength of Riveted Connections Rivets in Shear and Bearing Problems for Solution 461 CHAPTER 14 Welded Connections General Advantages of Welding American Welding Society Types of Welding Prequalified Welding Welding Inspection Classification of Welds Welding Symbols Groove Welds Fillet Welds Strength of Welds AISC Requirements Design of Simple Fillet Welds Design of Connections for Members with Both Longitudinal and Transverse Fillet Welds Some Miscellaneous Comments Design of Fillet Welds for Truss Members Plug and Slot Welds Shear and Torsion Shear and Bending Full-Penetration and Partial-Penetration Groove Welds Problems for Solution 519

10 CHAPTER 15 Building Connections Selection of Type of Fastener Types of Beam Connections Standard Bolted Beam Connections AISC Manual Standard Connection Tables Designs of Standard Bolted Framed Connections Designs of Standard Welded Framed Connections Single-Plate, or Shear Tab, Framing Connections End-Plate Shear Connections Designs of Welded Seated Beam Connections Designs of Stiffened Seated Beam Connections Designs of Moment-Resisting FR Moment Connections Column Web Stiffeners Problems for Solution 558 CHAPTER 16 Composite Beams Composite Construction Advantages of Composite Construction Discussion of Shoring Effective Flange Widths Shear Transfer Partially Composite Beams Strength of Shear Connectors Number, Spacing, and Cover Requirements for Shear Connectors Moment Capacity of Composite Sections Deflections 578

11 16.11 Design of Composite Sections Continuous Composite Sections Design of Concrete-Encased Sections Problems for Solution 592 CHAPTER 17 Composite Columns Introduction Advantages of Composite Columns Disadvantages of Composite Columns Lateral Bracing Specifications for Composite Columns Axial Design Strengths of Composite Columns Shear Strength of Composite Columns LRFD and ASD Tables Load Transfer at Footings and Other Connections Tensile Strength of Composite Columns Axial Load and Bending Problems for Solution 610 CHAPTER 18 Cover-Plated Beams and Built-up Girders Cover-Plated Beams Built-up Girders Built-up Girder Proportions Flexural Strength Tension Field Action Design of Stiffeners Problems for Solution 640

12 CHAPTER 19 Design of Steel Buildings Introduction to Low-Rise Buildings Types of Steel Frames Used for Buildings Common Types of Floor Construction Concrete Slabs on Open-Web Steel Joists One-Way and Two-Way Reinforced-Concrete Slabs Composite Floors Concrete-Pan Floors Steel Floor Deck Flat Slab Floors Precast Concrete Floors Types of Roof Construction Exterior Walls and Interior Partitions Fireproofing of Structural Steel Introduction to High-Rise Buildings Discussion of Lateral Forces Types of Lateral Bracing Analysis of Buildings with Diagonal Wind Bracing for Lateral Forces Moment-Resisting Joints Design of Buildings for Gravity Loads Selection of Members 676 APPENDIX A Derivation of the Euler Formula 677 APPENDIX B Slender Compression Elements 679 APPENDIX C Flexural-Torsional Buckling of Compression Members 682 APPENDIX D Moment-Resisting Column Base Plates 688

13 APPENDIX E Ponding 697 GLOSSARY 702 INDEX 708