Major Assignment - Post 6

Okay i so i just realised that i had completely abandoned any drainage system at all, making my design very inefficient!!! So i came up with this design, it still needs a bit of work and refinement, but i believe it will still follow my original idea.Below is an idea of how teh portal frame structure will be set out. In the first image we see the beams running along the east-west axis, pitching at 2 degrees. As illustrated in the bottom image, i have further used portal frames to run along the north-south axis underneath the existing frames, providing cross bracing for extra resistance against wind loads.