You have also added wind load in Windward X and Windward Z in the same load case 3.
LOAD 3 LOADTYPE Wind TITLE WL
WIND LOAD X 1 TYPE 1 XR 0 600 YR 0 600 ZR 0 600
WIND LOAD Z 1 TYPE 1 XR 0 400 YR 0 400 ZR 0 400
Considering that wind will blow in X and Z at the same instant which is not possible. I myself had very long discussion on it with some senior members of the forum. You can find it here.
communities.bentley.com/.../118224
LOAD 3 LOADTYPE Wind TITLE WL
WIND LOAD X 1 TYPE 1 XR 0 600 YR 0 600 ZR 0 600
WIND LOAD Z 1 TYPE 1 XR 0 400 YR 0 400 ZR 0 400
Considering that wind will blow in X and Z at the same instant which is not possible. I myself had very long discussion on it with some senior members of the forum. You can find it here.
communities.bentley.com/.../118224