What Is Seismic Bracing for Nonstructural Components?
Nonstructural seismic bracing (the ASCE 7 Chapter 13 — the components') restrains the ceilings, the piping, the equipment, and the cladding (the Fp — the design force; the anchorage — the capacity). The bracing: the component's (the Ip — the importance; the 1.5's essential), the anchorage (the concrete's — the post-installed; the capacity), and the coordination (the BIM's — the clashes'). The earthquake's — the nonstructural's casualties prevented.
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The components
The ceilings (the suspended — the bracing; the CISCA's), the piping (the sprinkler's — the lateral; the NFPA 13's), the ducts (the SMACNA's — the bracing), the equipment (the rooftop — the anchorage; the curbs'), and the cladding (the connections — the drift's).
Design forces
The Fp (the 0.3SDSIpWp — the formula's; the min/max), the Ip (the 1.5 — the essential; the 1.0's), the anchorage (the overstrength — the Omega; the concrete's — the ACI 318 Ch. 17), and the displacement (the drift's — the accommodation; the piping's).
Coordination and inspection
The BIM (the clashes — the modeled; the seismic's — the coordinated), the submittals (the delegated — the engineer's; the calculations'), the inspection (the special — the bracing's), and the OSHPD (the OSP — the preapproved; California's hospitals'). The bracing is the life-safety's — the components' restrained.
The bottom line
Brace nonstructural components per ASCE 7 Ch. 13 (Fp forces, Ip=1.5 for essential, concrete anchorage per ACI 318 Ch. 17) — coordinate in BIM, use OSHPD preapprovals where applicable.
Torch Engineering PLLC · (480) 490-0064 · info@torchengineering.com — PE stamping backed by Apex Grid Engineering.