my suggestion is to designed it as L shape or cantilever method, provided that you have to provide also a grade beam for more stability of the structures.
I would suggest to use an strip footing or grid type footing for more economical. for just two story building i think it would not be a problem since the load is not quite massive. so think about it and try to consult some structural engineers if it would be possible..but i think its possible...
to Y3392
Have you considered in your design the flexural reinforcement distribution? this will be affected due to reinforcement spacing, concrete covers.. try to check the crack limit then if the calculation of your design for cracks satisfy the interior and exterior crack limits then nothing...
what i understand if u got a small value of c= 0.85fc'ab under a stress block diagram and equating it to T=AsFy, u will notice that the maximum moment is lesser amount since your beam maybe of big section..but you got a an underreinforced beam. is your calculation of steel ratio is lower than...
what is the procedure in designing a structural steel watertank with more or less 20,000m3 capacity? what is in consideration to arrived an exact thickness of steel plate?
