Structural Wood Design: A Practice-Oriented Approach
July 2007, ©2007
To fully understand structural design in wood, it is not sufficient to consider the individual components in isolation. Structural Wood Design: A Practice-Oriented Approach Using the ASD Method offers an integrative approach to structural wood design that considers the design of the individual wood members in the context of the complete wood structure so that all of the structural components and connectors work together in providing strength. Holistic, practical, and code-based, this text provides the reader with knowledge of all the essentials of structural wood design:
Wood structural elements and systems that occur in wood structures
Structural loads—dead, live, snow, wind, and seismic—and how to calculate loads acting on typical wood structures
Glued-laminated lumber and allowable stresses for sawn lumber and Glulam
The design and analysis of joists and girders
The design of wood members subjected to axial and bending loads
Roof and floor sheathing and horizontal diaphrams
Exterior wall sheathing and wood shear walls
The design of connections and how to use the connection capacity tables in the NDS code
Several easy-to-use design aids for the preliminary sizing of joists, studs, and columns
In keeping with its hallmark holistic and practice-oriented approach, the book culminates in a complete building design case study that brings all the elements together in a total building system design.
Conforming throughout to the 2005 National Design Specification (NDS) for Wood, Structural Wood Design will prepare students for applying the fundamentals of structural wood design to typical projects, and will serve as a handy resource for practicing engineers, architects, and builders in their everyday work.
Chapter one INTRODUCTION: WOOD PROPERTIES, SPECIES, AND GRADES.
1.2 Typical Structural Components of Wood Buildings.
1.3 Typical Structural Systems in Wood Buildings.
1.4 Wood Structural Properties.
1.5 Factors Affecting Wood Strength.
1.6 Lumber Grading.
1.7 Shrinkage of Wood.
1.8 Density of Wood.
1.9 Units of Measurement.
1.10 Building Codes.
Chapter two INTRODUCTION TO STRUCTURAL DESIGN LOADS.
2.1 Design Loads.
2.2 Dead Loads.
2.3 Tributary Widths and Areas.
2.4 Live Loads.
2.5 Deflection Criteria.
2.6 Lateral Loads.
Chapter three ALLOWABLE STRESS DESIGN METHOD FOR SAWN LUMBER AND GLUED LAMINATED TIMBER.
3.1 Allowable Stress Design Method.
3.2 Glued Laminated Timber.
3.3 Allowable Stress Calculation Examples.
3.4 Load Combinations and the Governing Load Duration Factor.
Chapter four DESIGN AND ANALYSIS OF BEAMS AND GIRDERS.
4.1 Design of Joists, Beams, and Girders.
4.2 Analysis of Joists, Beams, and Girders.
4.3 Sawn-Lumber Decking.
4.4 Miscellaneous Stresses in Wood Members.
4.5 Preengineered Lumber Headers.
4.6 Flitch Beams.
4.7 Floor Vibrations.
Chapter five WOOD MEMBERS UNDER AXIAL AND BENDING LOADS.
5.2 Pure Axial Tension: Case 1.
5.3 Axial Tension plus Bending: Case 2.
5.4 Pure Axial Compression: Case 3.
5.5 Axial Compression plus Bending: Case 4.
5.6 Practical Considerations for Roof Truss Design.
Chapter six ROOF AND FLOOR SHEATHING UNDER VERTICAL AND LATERAL LOADS (HORIZONTAL DIAPHRAGMS).
6.2 Roof Sheathing: Analysis and Design.
6.3 Floor Sheathing: Analysis and Design.
6.4 Panel Attachment.
6.5 Horizontal Diaphragms.
Chapter seven VERTICAL DIAPHRAGMS UNDER LATERAL LOADS (SHEAR WALLS).
7.2 Shear Wall Analysis.
7.3 Shear Wall Design Procedure.
7.4 Combined Shear and Uplift in Wall Sheathing.
Chapter eight CONNECTIONS.
8.2 Design Strength.
8.3 Adjustment Factors for Connectors.
8.4 Base Design Values: Laterally Loaded Connectors.
8.5 Base Design Values: Connectors Loaded in Withdrawal.
8.6 Combined Lateral and Withdrawal Loads.
8.7 Preengineered Connectors.
8.8 Practical Considerations.
Chapter nine BUILDING DESIGN CASE STUDY.
9.2 Gravity Loads.
9.3 Seismic Lateral Loads.
9.4 Wind Loads.
9.5 Components and Cladding Wind Pressures.
9.6 Roof Framing Design.
9.7 Second Floor Framing Design.
9.8 Design of a Typical Ground Floor Column.
9.9 Design of a Typical Exterior Wall Stud.
9.10 Design of Roof and Floor Sheathing.
9.11 Design of Wall Sheathing for Lateral Loads.
9.12 Overturning Analysis of Shear Walls: Shear Wall Chord Forces.
9.13 Forces in Horizontal Diaphragm Chords, Drag Struts, and Lap Splices.
9.14 Design of Shear Wall Chords.
9.15 Construction Documents.
Appendix A Weights of Building Materials.
Appendix B Design Aids.
Jason Vigil, PE, is a structural engineer in Rochester, New York, who has been involved in the design of several buildings including many wood structures. He is also an adjunct professor in the Department of Civil Engineering Technology at Rochester Institute of Technology.
- Practical, design-oriented examples of real-world projects designed by the authors
- Includes references to current NDS-2005 and IBC codes
- Integrative perspective on design shows components in context with connections and the rest of the structure
- Covers commercial products such as header products and steel connectors