hello, the system will be without flooring as shown in the attached. but there is a clear opening of 720 cm. I designed these 5 beams as 30x70 since the width is 720 cm while the other spans are 30x60. does not give any inadequacy. including deflection control. I did not define a roof load, but I did not remove the 13cm brick load from the beams. It will be used as a single storey warehouse. only the wall will be built around the structure. What would your advice be on this project, with my best regards...