3. CALCULATE COLLAPSE LOAD ON THE BASIS OF
MOMENT REDISTRIBUTION

4. SCOPE

5. FIXED ENDED BEAM SUBJECTED TO TWO POINT LOADING.
FIXED ENDED BEAM SUBJECTED TO UNIFORMLY DISTRIBUTED
LOAD.
TWO EQUALLY SPAN CONTINUOUS BEAM LOADED WITH A
POINT LOAD AT MIDSPAN.
.

6. MOMENt REDIStRIBUtION
AS PER CODES
BS CODE
British code CP 110-1972 allows the peak elastic moments to
be reduced by up to (0.6-c/d)100% but not more than 30%.
RUSSIAN CODE
Russian regulations apparently have allowed the intermediate
spans of uniformly loaded continuous beams of equal span to
be design for equal positive and negative moments and have
allow 30% moment redistribution from the elastic bending
moment diagram.
ACI CODE
ACI code allow support moments to be changed by up to 20%
depending upon the ductility of section

7. ASSUMED M- φ CURvE

8. FACtORS AFFECtINg ON MOMENt
REDIStRIBUtION
 Plastic hinge rotation
 Plastic hinge length

9. APPlICAtION OF MOMENt REDIStRIBUtION
 Redistribution of negative moments in continuous nonprestressed
flexural members
 Redistribution of negative moments in continuous prestressed flexural
members

10. MOMENt REDIStRIBUtION PROhIBItED
 slab systems designed by the Direct Design Method.
 The failure mechanism of FRP reinforced flexural
members should not be based on the formation of plastic
hinges.

11. ASSUMPtIONS

13. MAtlAB PROgRAM

14. DEvElOPMENt OF M-FIlE
MAIN PROGRAM
 CALCULATE COLLAPSE LOAD
SUB PROGRAM
 DRAW MOMENT CURVATURE DIAGRAM
 DRAW SHEAR FORCE AND BENDING
MOMENT DIAGRAM

15. CASES tO BE CONSIDERED
 Fixed ended beam loaded with two point loading.
 Fixed ended beam loaded with a uniformly
distributed load
 Two equally span continuous beam loaded with a
point load at mid span

16. M – φ CURvE

17. FIxED ENDED BEAM lOADED wIth twO POINt
lOADINg .

18. FIxED ENDED BEAM lOADED wIth UDl .

19. twO EqUAlly SPAN CONtINUOUS BEAM lOADED wIth A
POINt lOAD At MID SPAN

20. COMPARAtIvE StUDy

22. thE END