It was my email. I set a new password when it was hacked. So I had to remove it and put in the new one. Now everything works! I got the update to the samsung apps store. Is that the one you were referring to?
Would it be okay to design a simple bridge just made up of 2 straight w shape steel for its beam and an rc slab for its deck without any trusses to support it? Span between supports is 11-13 meters. It's meant for primarily for pedestrian but I was told that it will also be used for small cars. Width is 3meters.
It sounds like a big span without a centre support. I would contact an engineer and show some concept plans. My first opinion is it is very very unlikely. A centre support will give a continuous span for the beam. Deflection could be offset by the cantilever. If you have a drawing upload it you may find a friendly engineer who knows more than I do.