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• Ceiling areas over 1,000 SF must have horizontal restraint wire or rigid bracing • Ceiling areas over 2,500 SF must have seismic separation joints or full height partitions • Ceilings without rigid bracing must have 2" oversized trim rings for sprinklers and other penetrations
Installation of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Subject to Earthquake Ground Motions1 This standard is issued under the fixed designation E 580/E 580M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
But major revisions to the International Building Code (IBC) now require seismic ceilings throughout the U.S. In addition to geographic location, the new code considers soil type and building function (e.g., hospital, school).
9 cze 2022 · Design of the system to withstand horizontal seismic loads. Transferring these loads back to the building structure through seismic bracing. There are 3 common methods used to seismically brace suspended ceilings. 1.0 Fix - Float. The first and simplest method is to ‘Fix’ and ‘Float’ the ceiling.
The design of Armstrong suspended ceiling grid systems, bracing and fixing types shown in this guide are developed in accordance with the following standards: – AS/NZ 2785: 2020 Suspended Ceiling – Design and installation – AS1170.4: 2007 Structural Design Actions – Earthquake actions in Australia
The SB2 adjustable wall molding bracket is a convenient way to secure standard wall molding at an angle to accommodate a sloped acoustical ceiling. The brackets can be field modified to accommodate numerous slopes while utilizing standard wall molding.
7 gru 2020 · Joints tested are part of suspended ceiling systems that differ from traditional American systems in relation to: bracing system to withstand seismic actions as described in ASTM E580 (2017a, b see Fig. 22), boundary constraints of main-tee/cross-tee and type/mechanics of the joints themselves.
