Hi My suggestions: --Check the ground bearing strength (qt) is too low, --Fix the errors in the geometry check, --Rx=Ry=5[/ b], you must provide --Mdev>0.75. Yours is 0.3. --If you are going to solve the project with a hollow block much larger curtains should be added in X and Y directions, --Buildings with hollow blocks are penalized. --Make water-basman grains modeling according to the link below,