I am asking this because some of my engineer friends said that they won't want to analyze beam as continuous beam for RC building structures, because it is "unsafe" to do so, whether it has anything to do with less deflection or no, I don't know.
His logic is that continuous beam predicts less deflection ( and hence gives more economical design), is his claim valid?
I wonder how does practicing engineers view the modelling and analyzing/designing beam spans as continuous beams ( instead of beams with many supports) when it comes to reinforced concrete building structures? Do they generally feel that it is OK to design beam spans as continuous beam ( and hence more economical because the reinforcement bars used will be less), or do they share my friend's opinion?
What does the building code of practice ( or common design practice) across the world say about continuous beam design, do they discourage or encourage it? Any reason not to design beam spans as continuous beam?