In 2012 this will change from the CISCA Guidelines to ASTM E580, Standard Practice for Installation of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Subject to Earthquake Ground Motions.
ASTM E580 includes other requirements for clear openings for sprinkler heads, seismic separation joints, ceiling penetrations, and consideration of consequential damage and
perimeter support in accordance with Section 3.4 of this IR or with ASTM E580 Sections 5.2.2 and 5.2.3 are provided and perimeter walls are designed to carry the
Installation Must be installed in compliance with ASTM C636, ASTM E580, CISCA, and standard industry practices.
(ASCE-section 22.214.171.124.2 itemb, ASTM E580-section 5.2.3, CISCA-Seismic Zones 3&4) ...
the requirements of ASTM E580 and UBC Standard 25-2. c. Do not attach hangers to piping, conduit, or duct. Provide carrying channel trapeze support where obstruction cannot be avoided by splaying hanger 45
Current Code Requirements for Ceilings •Current requirements are spread throughout six or seven different documents. ASTM C 635 ASTM C 636CISCA Zone 0-2 CISCA Zone 3-4 ASCE7 IBC (ASTM E 580) •Based on Tee-bar suspension systems only •Based on minimal testing done in 1980's and previous ...
ASTM E580 - Practice for Application of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Requiring Seismic Restraint.
Source ASTM C 636 section 2.1.4 • Hanger wires shall be 12 gage and spaced 4 feet on center or 10 gage spaced 5 feet on center. Source ASTM C 636 • Any connection device at the supporting construction shall be capable of carrying not less than 100 pounds.
ASTM C635 -04, Standard ... for Acoustical Tile and Lay-In Panel Testing ASTM C645-04 Standard Specification for Nonstructural Steel Framing Members ASTM E580-02 Standard Practice for Application of Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels in Areas Requiring Moderate Seismic Restraint ...
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