All the walls are stick built, the main cross-structure is eith steel I-beam or laminated 12x4. All floor joists are composit wood I-beam-y type things, wood chips held together by glue. If they're currently wet, they're frozen solid, so no buckling yet. The ceiling and all wallboard is done. You can see ceiling on the floor in the basement.

Structurally, the house will be fine. Cosmetically, it's destroyed inside.