SPECIFICATION FOR THE DESIGN OF - Transcon Steel

Commentary on the Prescriptive Method for One and Two Family Dwellings - 2004
vii
TABLE OF CONTENTS
COMMENTARY ON THE
STANDARD FOR COLD-FORMED STEEL FRAMING –
PRESCRIPTIVE METHOD FOR ONE AND TWO FAMILY DWELLINGS
DISCLAIMER................................................................................................................................ii
PREFACE.....................................................................................................................................iii
AISI COMMITTEE ON FRAMING STANDARDS.......................................................................... iv
PRESCRIPTIVE METHODS SUBCOMMITTEE............................................................................. v
PART 1 – COMMENTARY............................................................................................................1
A. GENERAL................................................................................................................................1
A1 Scope ............................................................................................................................................. 1
A1.1 Limits of Applicability .................................................................................................... 1
A1.2 Limitations In High Seismic and High Wind Areas ................................................... 2
A2 Definitions .................................................................................................................................... 2
A4 Limitations of Framing Members ............................................................................................. 2
A4.1 General .............................................................................................................................. 2
A4.2 Physical Dimensions........................................................................................................ 3
A4.3 Material Properties .......................................................................................................... 4
A4.4 Web Holes ......................................................................................................................... 4
A4.5 Hole Patching ................................................................................................................... 4
B. CONNECTIONS .......................................................................................................................5
B1 Fastening Requirements ............................................................................................................. 5
B2 Bearing Stiffeners......................................................................................................................... 5
B3 Clip Angles................................................................................................................................... 6
D. FLOOR FRAMING...................................................................................................................7
D2 Floor to Foundation or Structural Wall Connection............................................................... 7
D3 Minimum Floor Joist Sizes ......................................................................................................... 7
D3.1 Floor Cantilevers.............................................................................................................. 8
D4 Bearing Stiffeners......................................................................................................................... 8
D5 Joist Bracing and Blocking ......................................................................................................... 9
D5.1 Joist Top Flange Bracing ................................................................................................. 9
D5.2 Joist Bottom Flange Bracing/Blocking.......................................................................... 9
D5.3 Blocking at Interior Supports ......................................................................................... 9
D5.4 Blocking at Cantilevers.................................................................................................... 9
D6 Splicing ......................................................................................................................................... 9
D7 Framing of Floor Openings...................................................................................................... 10
D8 Floor Trusses .............................................................................................................................. 10
D9 Diaphragms................................................................................................................................10
D9.1 Floor Diaphragms in High Seismic and High Wind Areas ..................................... 10
E. WALL FRAMING.................................................................................................................. 11
E2 Wall to Foundation or Floor Connection ............................................................................... 11
E3 Minimum Stud Sizes................................................................................................................. 11
E4 Stud Bracing ............................................................................................................................... 13
E5 Splicing ....................................................................................................................................... 13
E6 Corner Framing ......................................................................................................................... 13