FIXED ENDED BEAM SUBJECTED TO TWO POINT LOADING.FIXED ENDED BEAM SUBJECTED TO UNIFORMLY DISTRIBUTEDLOAD.TWO EQUALLY SPAN CONTINUOUS BEAM LOADED WITH APOINT LOAD AT MIDSPAN. .
MOMENt REDIStRIBUtIONAS PER CODESBS CODEBritish code CP 110-1972 allows the peak elastic moments tobe reduced by up to (0.6-c/d)100% but not more than 30%.RUSSIAN CODE Russian regulations apparently have allowed the intermediatespans of uniformly loaded continuous beams of equal span tobe design for equal positive and negative moments and haveallow 30% moment redistribution from the elastic bendingmoment diagram.ACI CODEACI code allow support moments to be changed by up to 20%depending upon the ductility of section
FACtORS AFFECtINg ON MOMENt REDIStRIBUtION Plastic hinge rotation Plastic hinge length
APPlICAtION OF MOMENt REDIStRIBUtION Redistribution of negative moments in continuous nonprestressed flexural members Redistribution of negative moments in continuous prestressed flexural members
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.
DEvElOPMENt OF M-FIlEMAIN PROGRAM CALCULATE COLLAPSE LOADSUB PROGRAM DRAW MOMENT CURVATURE DIAGRAM DRAW SHEAR FORCE AND BENDING MOMENT DIAGRAM
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