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Addis Ababa University Libraries Electronic Thesis and Dissertations: AAU-ETD! >
Faculty of Technology >
Thesis - Civil Engineering >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/123456789/3687
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| Title: | EVALUATION OF APPROXIMATE METHODS FOR THE DESIGN OF BIAXIALL Y LOADED ~EINFORCED CONCRETE COLUMNS |
| Authors: | TEFERA, DESTA |
| Advisors: | Dr.-Ing. Girma Zerayohannes |
| Keywords: | APPROXIMATE METHODS
REINFORCED CONCRETE COLUMNS
BIAXIALL Y LOADE |
| Copyright: | May-1999 |
| Date Added: | 6-Nov-2012 |
| Publisher: | AAU |
| Abstract: | The ultimate capacity of reinforced concrete sections under normal force and biaxial
bending moments can be represented by a three dimensional interaction surface in terms of
the normal force and biaxial moments. The surface can be conveniently represented by a
family of curves either on a plane of constant normal force relating the two moment
components or as interaction diagram on a plane of constant angle relating the normal
force and the resultant of the two moment components. However, the curves can not be
described by exact and closed form mathematical expressions due to a wide variety of
parameters involved in the determination of ultimate bi-axial moment capacity of cross-sections
with normal force. Thus the systematic generation of such curves to be used for
design involves obtaining sufficient number of suitable points by iteration which normally
requires use of computer programs. In the absence of such facilities, the use of
approximate methods becomes mandatory. There are different approximate methods
adopted in different codes for the design of biaxially loaded reinforced concrete columns
and the purpose of this thesis work is to assess and evaluate the proximity of some of these
approximate methods with the exact solution. The approximate methods evaluated include
those recommended by EBCS-2 [1), CPllO [2,3) and ACI [4,5). |
| URI: | http://hdl.handle.net/123456789/3687 |
| Appears in: | Thesis - Civil Engineering
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