What Is Seismic Design for Plumbing Components?
Plumbing (the 13.6's — the Fp's; the 0.3's) is designed for (the Fp's — the 0.3SDSIpWp's; the 2.5's) via (the 13.6's — the 13.3.1's; the Ip's) and (the 2.5's — the 13.3.1's; the cap's). The design: the 13.6's (the Fp's — the 0.3's; the 13.3.1's), the Fp's (the 0.3's — the 2.5's; the 13.3.1's), the 2.5's (the 13.3.1's — the cap's; the 0.3's), and the 1.5's (the Ip's — the 13.1's; the 1.0's). The pipe's — the 13.6 anchored.
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The 13.6's scope
The 13.6 (the Fp's — the 0.3's; the 13.3.1's), the Fp (the 0.3SDSIpWp's — the 13.6's; the 2.5's), the 2.5 (the 13.3.1's — the 13.6's; the cap's), the 0.3 (the 13.6's — the 13.3.1's; the floor's), and the 13.3.1 (the 2.5's — the 0.3's; the 13.6's).
The Ip's values
The 1.5 (the 1.0's — the 13.1's; the fire's — the suppression's), the 1.0 (the normal's — the 1.5's; the 13.1's), the 13.1 (the 1.5's — the 1.0's; the 13.6's), the 400-lb (the 13.5's — the 20 psf's; the 13.6's), and the 2.5 (the 0.3's — the 13.3.1's; the 13.6's).
Bracing and joints
The 400-lb (the 20 psf's — the 13.6's; the 13.5's), the 20 psf (the 13.6's — the 13.5's; the 400's), the flexible (the couplings' — the 13.6's; the 2-inch), the 2-inch (the 13.6's — the flexible's; the couplings'), the 1.5 (the 13.1's — the 13.6's; the fire's), and the 2.5 (the 0.3's — the 13.3.1's; the 13.6's). The plumbing's — the 13.6's Fp; the couplings' — the 2-inch flexible.
The bottom line
Design plumbing per ASCE 7 13.6 (Fp = 0.3·SDS·Ip·Wp per 13.3.1, capped 2.5x/floored 0.3x; Ip 1.5 fire suppression) — positive anchorage at 400 lb or 20 psf per 13.5; flexible couplings at seismic joints.
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