Residential Structural Design Guide By NAHB Research Center

Residential Structural Design Guide: 2000 Edition
A State-of-the-Art Review and Application of Engineering Information for Light-Frame Homes, Apartments, and Townhouses

Residential Structural Design Guide

Prepared for
U.S. Department of Housing and Urban Development
Office of Policy Development and Research
Washington, DC
Contract H-21065CA
and
National Association of Home Builders
Housing Affordability Through Design Efficiency Program
Washington, DC
by
NAHB Research Center, Inc.
Upper Marlboro, Maryland

Contents of Residential Structural Design Guide

Chapter 1 – Basics of Residential Construction
1.1 Conventional Residential Construction…………………………………………………………….1-1
1.2 Industrialized Housing …………………………………………………………………………………..1-6
1.3 Alternative Materials and Methods ………………………………………………………………….1-7
1.4 Building Codes and Standards ………………………………………………………………………1-11
1.5 Role of the Design Professional …………………………………………………………………….1-14
1.6 Housing Structural Performance ……………………………………………………………………1-15
1.7 Summary ……………………………………………………………………………………………………1-24
1.8 References ………………………………………………………………………………………………….1-25
Chapter 2 – Structural Design Concepts
2.1 General ………………………………………………………………………………………………………..2-1
2.2 What is Structural Design?……………………………………………………………………………..2-1
2.3 Load Conditions and Structural System Response …………………………………………….2-2
2.4 Load Path……………………………………………………………………………………………………..2-6
2.5 Structural Safety………………………………………………………………………………………….2-14
2.6 References ………………………………………………………………………………………………….2-23
Chapter 3 – Design Loads for Residential Buildings
3.1 General ………………………………………………………………………………………………………..3-1
3.2 Load Combinations ……………………………………………………………………………………….3-2
3.3 Dead Loads…………………………………………………………………………………………………..3-4
3.4 Live Loads……………………………………………………………………………………………………3-6
3.5 Soil Lateral Loads …………………………………………………………………………………………3-8
3.6 Wind Loads ………………………………………………………………………………………………..3-11
3.7 Snow Loads ………………………………………………………………………………………………..3-20
3.8 Earthquake Loads………………………………………………………………………………………..3-22
3.9 Other Load Conditions …………………………………………………………………………………3-30
3.10 Design Examples…………………………………………………………………………………………3-31
3.11 References ………………………………………………………………………………………………….3-38
Chapter 4 – Design of Foundations
General ………………………………………………………………………………………………………..4-1
4.2 Material Properties ………………………………………………………………………………………..4-4
4.3 Soil Bearing Capacity and Footing Size …………………………………………………………..4-8
4.4 Footings……………………………………………………………………………………………………..4-10
4.5 Foundation Walls ………………………………………………………………………………………..4-19
4.6 Slabs on Grade ……………………………………………………………………………………………4-49
4.7 Pile Foundations………………………………………………………………………………………….4-50
4.8 Frost Protection …………………………………………………………………………………………..4-53
4.9 Design Examples…………………………………………………………………………………………4-58
4.10 References ………………………………………………………………………………………………….4-88
Chapter 5 – Design of Wood Framing
5.1 General ………………………………………………………………………………………………………..5-1
5.2 Material Properties ………………………………………………………………………………………..5-3
5.3 Structural Evaluation……………………………………………………………………………………5-15
5.4 Floor Framing……………………………………………………………………………………………..5-24
5.5 Wall Framing………………………………………………………………………………………………5-32
5.6 Roofs …………………………………………………………………………………………………………5-39
5.7 Design Examples…………………………………………………………………………………………5-48
5.8 References ………………………………………………………………………………………………….5-81
Chapter 6 – Lateral Resistance to Wind and Earthquakes
6.1 General ………………………………………………………………………………………………………..6-1
6.2 Overview of Whole-Building Tests …………………………………………………………………6-3
6.3 LFRS Design Steps and Terminology………………………………………………………………6-5
6.4 The Current LFRS Design Practice………………………………………………………………..6-11
6.5 Design Guidelines ……………………………………………………………………………………….6-19
6.6 Design Examples…………………………………………………………………………………………6-41
6.7 References ………………………………………………………………………………………………….6-74
Chapter 7 – Connections
7.1 General ………………………………………………………………………………………………………..7-1
7.2 Types of Mechanical Fasteners ……………………………………………………………………….7-3
7.3 Wood Connection Design …………………………………………………………………………….7-11
7.4 Design of Concrete and Masonry Connections………………………………………………..7-23
7.5 Design Examples…………………………………………………………………………………………7-28
7.6 References ………………………………………………………………………………………………….7-50
Appendix A – Shear and Moment Diagrams and Beam Equations
Appendix B – Unit Conversions


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