-
CE 5510 - 2004
CE 5510
Advanced Structural Concrete Design
-
CE 5510 - 2004
Slender Column Design
Braced Slender ColumnDesign MomentsUnbraced Slender
ColumnsAdjustments to Additional Moments
-
CE 5510 - 2004
Class Objectives
Explain the effect of second order moments on axial force-moment
interaction diagram
Identify a column as slender (or not) Slender means that
slenderness effects are to be considered as per code of
practice.
Determine the design moments for a slender column.
-
CE 5510 - 2004
Recommended Reading James G. MacGregor, REINFORCED CONCRETE:
Mechanics and Design, 3rd Ed., Prentice-Hall, 1997, Ch. 12.
Allen, A. H., REINFORCED CONCRETE DESIGN TO BS8110 SIMPLY
EXPLAINED, E&FN Spon,
London 1988, Ch. 11 David A. Fanella, Time-saving design aids
for
reinforced concrete, Part 3: Column and walls, STRUCTURAL
ENGINEER, November 2001, pp 42-47.
The next few slides are from the Reinforced Concrete Council
-
CE 5510 - 2004
Introduction
-
CE 5510 - 2004
-
CE 5510 - 2004
N M Relationship (BS 8110)
-
CE 5510 - 2004
N M Relationship (BS 8110)
Do you know why you can design for flexure only ifthe axial
force is less than 0.1 fcuAc ?
-
CE 5510 - 2004
Design Charts for symmetrically reinforced rectangular
cross-sections
-
CE 5510 - 2004
What is Buckling?
-
CE 5510 - 2004
What is buckling?
-
CE 5510 - 2004
What is Buckling?
-
CE 5510 - 2004
Slenderness Effects in Structures
-
CE 5510 - 2004
Classification of Structures
-
CE 5510 - 2004
Effective Length
-
CE 5510 - 2004
Effective Length
-
CE 5510 - 2004
Effective Length
-
CE 5510 - 2004
Effective Length (BS 8110)
-
CE 5510 - 2004
Effective Length
-
CE 5510 - 2004
Slenderness Ratio
-
CE 5510 - 2004
Slenderness Ratio
Bending and Axial Load
-
CE 5510 - 2004
Design Methods
-
CE 5510 - 2004
Design Methods
course
This is covered in detail later.
-
CE 5510 - 2004
Simplified Design Method
-
CE 5510 - 2004
Simplified Design Method
-
CE 5510 - 2004
Simplified Design Method
-
CE 5510 - 2004
Braced
-
CE 5510 - 2004
Simplified Design Method
-
CE 5510 - 2004
Simplified Design Method
-
CE 5510 - 2004
Simplified Design Method
-
CE 5510 - 2004
Bending about Both Axes
-
CE 5510 - 2004
Bending about Both Axes
-
CE 5510 - 2004
Bending about Both Axes
-
CE 5510 - 2004
Example: Calculate the area of steel required in the braced
column
-
CE 5510 - 2004
-
CE 5510 - 2004
-
CE 5510 - 2004
-
CE 5510 - 2004
-
CE 5510 - 2004
-
CE 5510 - 2004
ExampleA. H. Allen, pp 113-115
-
CE 5510 - 2004
Example: Slender Braced Column (Allen)
-
CE 5510 - 2004
-
CE 5510 - 2004
-
CE 5510 - 2004
-
CE 5510 - 2004
-
CE 5510 - 2004
BS 8110 : 1985
-
CE 5510 - 2004
Slender Beams
Slender Column DesignClass ObjectivesRecommended
ReadingIntroductionN M Relationship (BS 8110)N M Relationship (BS
8110)Design Charts for symmetrically reinforced rectangular
cross-sectionsWhat is Buckling?What is buckling?What is
Buckling?Slenderness Effects in StructuresClassification of
StructuresEffective LengthEffective LengthEffective LengthEffective
Length (BS 8110)Effective LengthSlenderness RatioSlenderness
RatioDesign MethodsDesign MethodsSimplified Design MethodSimplified
Design MethodSimplified Design MethodBracedSimplified Design
MethodSimplified Design MethodSimplified Design MethodBending about
Both AxesBending about Both AxesBending about Both AxesExample:
Calculate the area of steel required in the braced columnExampleA.
H. Allen, pp 113-115Example: Slender Braced Column (Allen)BS 8110 :
1985Slender Beams
