Civil Engineering Reference
In-Depth Information
Column by Memon & Sheikh (2005)
1200
Memon and Sheikh Column
Experimental
1000
800
600
400
200
0
0
50
100
150
200
Bending Moment (kip-ft)
FIGURE 7.23
Confined interaction diagram according to ACI 440.2R-08 for column MS3
tested by Memon and Sheikh (2005).
By comparing Figures 7.23 and 7.24, it is evident that the ACI 440.2R-08 pro-
cedure is conservative compared to the curve generated by the KDOT Column
Expert software. This is again attributed to the fact that the ACI 440.2R-08 pro-
cedure ignores the confinement resulting from internal reinforcement, which is
significant due to the extra diamond-shaped tie that is accounted for by the KDOT
Column Expert software.
MS3
1400
1200
1000
800
600
400
200
0
0
20000 00
120 40
160 80
200
Resultant Moment (kip.ft)
FIGURE 7.24
Confined interaction diagram according to KDOT Column Expert for
column MS3 tested by Memon and Sheikh (2005).
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