What Is Seismic Design for Nonbuilding Structures?
Nonbuilding structures (the ASCE 7 Chapter 15 — the tanks, the towers, the stacks) are designed for the seismic (the similar — the buildings'; the adapted) — the structures not (the occupancy's — the industrial). The design: the chapter's (the 15's — the provisions), the R's (the structure's — the system's), and the anchorage (the foundation's — the overturning's). The industrial's — the seismic's chapter.
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The structures
The tanks (the API 650's — the liquid's; the sloshing's), the vessels (the ASME's — the pressure's), the stacks (the chimneys' — the cantilever's), the towers (the trussed — the lattice's), and the bins (the granular's — the effective).
Design per Chapter 15
The R (the system's — the 15's tables; the similar's), the period (the computed — the formulas'; the flexible's), the anchorage (the overturning's — the bolts'; the chair's), the soil (the SSI's — the considered; the liquefaction's), and the importance (the Ie's — the hazardous').
The details
The sloshing (the convective — the wave's; the freeboard's), the piping (the attached — the flexed; the 13's), the foundations (the ringwall's — the tank's; the mats'), and the inspection (the welded's — the NDE's). The nonbuilding is the industrial's — the Chapter 15's design.
The bottom line
Design nonbuilding structures per ASCE 7 Ch. 15 (tanks, vessels, stacks, towers) — use chapter R-factors, design sloshing/anchorage, and consider SSI and hazardous-materials importance.
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