Ahmad Ali AKbar Phambra

Dear Umar, Thanks for your reply.I have looked into the topics you you shared but my question is not why need to reduce torsion constant to 0.01 or less! My question is: In my case, plinth beams showed zero torsional reinforcement (as you can see in the pics i attached in the post) but we have still provided the 2#4 longitudinal bars at the mid height for all plinth beams.So is it some minimum torsional reinforcement that we have to provide even if Torsional rft from ETABS comes about zero! What if in plinth beams we don't provide torsional rft at all will it still be safer? Because in bachelor's i have never come across mid height rft concept and i am confused.If you can clarify my specific question that would be great! I really appreciate your help! Thanks

AOA! I am currently working on a 3 story building and was working out the reinforcement in beams and columns.Although software results gave zero torsional reinforcement (see attached plan for plinth beams) but senior design engineer provided 2-#4 bars in the mid-height may be to resist torsional effects.?(I am not sure).. I even asked him why he has provided these 2 bars at the mid height and he said to resist torsional reinforcement. But i am confused! But my question is if ETABS results shows zero reinforcement then why provide torsional reinforcement? And please tell whether there is some criteria for minimum torsional reinforcement and what if we dont provide it all will it affect anything? All plinth beam sizes are 12" x 18" only one beam near the stairs shows some torsional reinforcement then why provide it for all plinth beams.? Any help regarding this would be much appreciated! Thanks