UFC 4-023-03
25 January 2005
CONTENTS, CONTINUED
Page
APPENDIX C WORKED REINFORCED CONCRETE FRAME EXAMPLE ............. C-1
Paragraph
C-1
INTRODUCTION. ................................................................. C-1
C-2
PRELIMINARY DESIGN....................................................... C-1
C-2.1
Scope of Model..................................................................... C-1
C-2.2
Model Assumptions. ............................................................. C-1
C-2.3
Loading Assumptions............................................................ C-2
C-2.4
Load Combinations (per IBC 2003, Section 1605)................ C-2
C-2.5
Member Sizes....................................................................... C-4
C-3
TIE FORCE CHECK. ............................................................ C-4
C-4
ALTERNATE PATH SETUP. ................................................ C-5
C-4.1
Progressive Collapse Load Combination. ............................. C-7
C-4.2
Plastic Hinges. ...................................................................... C-7
C-5
ALTERNATE PATH ANALYSIS............................................ C-8
C-5.1
Develop Preliminary Model. .................................................. C-8
C-5.2
Assign Groups. ..................................................................... C-9
C-5.3
Define and Assign Hinge Properties. .................................... C-9
C-5.4
Define Nonlinear Analysis Cases..........................................C-10
C-5.5
Run Analysis.........................................................................C-11
C-5.6
Progression of Hinge Formations. ........................................C-11
C-5.7
Shear Capacity and Other Capacity Checks.........................C-15
C-5.8
Alternate Path Method Complete..........................................C-15
APPENDIX D WORKED STRUCTURAL STEEL FRAME EXAMPLE...................... D-1
Paragraph
D-1
INTRODUCTION. ................................................................. D-1
D-2
PRELIMINARY DESIGN....................................................... D-1
D-2.1
Scope of Model..................................................................... D-1
D-2.2
Model Assumptions. ............................................................. D-1
D-2.3
Loading Assumptions............................................................ D-2
D-2.4
Load Combinations (per IBC 2003). ..................................... D-3
D-2.5
Member Sizes....................................................................... D-3
D-3
TIE FORCE CHECK. ............................................................ D-4
D-4
ALTERNATE LOAD PATH ................................................... D-6
D-4.1
Progressive Collapse Load Combination. ............................. D-8
D-4.2
Plastic Hinges. ...................................................................... D-8
D-5
ALTERNATE LOAD PATH ANALYSIS. ................................ D-9
D-5.1
Develop Preliminary Model. .................................................. D-9
D-5.2
Assign Groups. .....................................................................D-10
D-5.3
Define and Assign Hinge Properties. ....................................D-10
D-5.4
Define Nonlinear Analysis Cases..........................................D-11
D-5.5
Run Analysis.........................................................................D-12
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