C4 W409 base plate
Research representation: none. Architectural checks: pending.
Basement
Source relationships · not a verified physical connection
- part of (printed, verified): C4 — audited W409 assembly references
6 recorded properties
Still to extract or check- Thickness fraction
- Column-to-base-plate center offset E′
- Plan rotation
- Anchor holes/bolts
- Grout and stiffener connections
- Bottom elevation