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6
<br />-
<br />10
<br />-
<br />4'-0" TYP.2 '-0 "
<br />2 '-0 "
<br />12'-0"
<br />45.0°
<br />6'-0"
<br />MAX.6'-0"MAX12'-0"8"
<br />45.0°
<br />O .C .8"SEISMIC DESIGN CATEGORIES D,E AND F.
<br />1. SUSPENDED CEILINGS IN SEISMIC DESIGN CATEGORIES D,E, AND F SHALL BE DESIGNED AND INSTALLED IN ACCORDANCE WITH ASTM
<br />C635, ASTM 636 AND CISCA FOR SEISMIC ZONES 3-4 AS MODIFIED BY THE FOLLOWING:
<br />2. A HEAVY DUTY T-BAR GRID SHALL BE USED
<br />3. THE WIDTH OF THE PERIMETER SUPPORTING CLOSURE ANGLE SHALL BE NOT LESS THAN 2". IN EACH ORTHOGONAL HORIZONTAL
<br />DIRECTION, ONE END OF THE CEILING GRID SHALL BE ATTACHED TO THE CLOSURE ANGLE. THE OTHER END IN EACH HORIZONTAL DIRECTION
<br />SHALL HAVE A 0.75 ". CLEARANCE FROM THE WALL AND SHALL REST UPON AND BE FREE TO SLIDE ON A CLOSURE ANGLE
<br />4. FOR CEILING AREAS EXCEEDING 1,000 SF HORIZONTAL RESTRAINT OF THE CEILING TO THE STRUCTURAL SYSTEM SHALL BE PROVIDED. THE
<br />TRIBUTARY AREAS OF THE HORIZONTAL RESTRAINTS SHALL APPROXIMATELY EQUAL
<br />EXCEPTION:
<br />A. RIGID BRACES ARE PERMITTED TO BE USED INSTEAD OF DIAGONAL SPLAY WIRES. BRACES AND ATTACHMENTS TO THE STRUCTURAL
<br />SYSTEM ABOVE SHALL BE ADEQUATE TO LIMIT RELATIVE LATERAL DEFLECTIONS AT POINT OF THE ATTACHMENT OF THE CEILING GRID TO
<br />LESS THAN O.25" FOR THE LOADS PRESCRIBED IN SECTION 13.3.OF MINIMUM DESIGN LOADS FOR BUILDINGS AND OTHER STRUCTURES
<br />B. FOR CEILING AREAS EXCEEDING 2,500 SF, A SEISMIC SEPARATION JOINT OR FULL HEIGHT PARTITION THAT BREAKS THE CEILING UP INTO
<br />AREAS NOT EXCEEDING 2,500 SF SHALL BE PROVIDED UNLESS STRUCTURAL ANALYSES ARE PERFORMED OF THE CEILING BRACING SYSTEM
<br />FOR THE PRESCRIBED SEISMIC FORCES THAT DEMONSTRATE CEILING SYSTEM PENETRATIONS AND CLOSURE ANGLES PROVIDE SUFFICIENT
<br />CLEARANCE TO ACCOMMODATE THE ANTICIPATED LATERAL DISPLACEMENT
<br />C. EXCEPT WHERE RIGID BRACES ARE USED TO LIMIT LATERAL DEFLECTIONS, SPRINKLER HEADS AND OTHER PENETRATIONS SHALL HAVE A
<br />2" OVERSIZE RING, SLEEVE, OR ADAPTER ROUGH THE CEILING TILE TO ALLOW FOR FREE MOVEMENT OF AT LEAST 1" IN ALL HORIZONTAL
<br />DIRECTIONS. ALTERNATIVELY, A SWING JOINT THAT CAN ACCOMMODATE 1" OF THE CEILING MOVEMENT IN ALL HORIZONTAL DIRECTIONS IS
<br />PERMITTED TO BE PROVIDED AT THE TOP OF THE SPRINKLER HEAD EXTENSION
<br />D. SUSPENDED CEILINGS SHALL BE SUBJECT TO THE SPECIAL INSPECTION REQUIREMENTS OF ASCE 7-10, SECTION 11A.1.3.9, ITEM 2.
<br />E. AS AN ALTERNATE TO PROVIDING LARGE CLEARANCES AROUND SPRINKLER SYSTEM PENETRATIONS THROUGH CEILING SYSTEMS, THE
<br />SPRINKLER SYSTEM AND CEILING SYSTEM AND CEILING GRID ARE PERMITTED TO BE DESIGNED AND TIED TOGETHER AS AN INTEGRAL UNIT.
<br />SUCH A DESIGN SHALL CONSIDER THE MASS AND FLEXIBILITY OF ALL ELEMENTS INVOLVED, INCLUDING THE CEILING SYSTEM, SPRINKLER
<br />SYSTEM, LIGHT FIXTURES AND MECHANICAL (HVAC) APPURTENANCES. SUCH DESIGN SHALL BE PERFORMED BY A REGISTERED DESIGN
<br />PROFESSIONAL
<br />GENERAL NOTES:
<br />1. LATERAL FORCE MEMBERS SHALL BE SPACED A MINIMUM OF 6" FROM ALL HORIZONTAL PIPING OR DUCTWORK THAT IS NOT
<br />PROVIDED WITH BRACING RESTRAINS FOR HORIZONTAL FORCES. BRACING WIRES SHALL BE ATTACHED TO THE GRID AND TO THE
<br />STRUCTURE IN SUCH A MANNER THAT THEY CAN SUPPORT A DESIGN LOAD OF NOT LESS THAN 200 POUNDS OR THE ACTUAL LOAD,
<br />WHICHEVER IS GREATER, WITH A SAFETY FACTOR OF 2.
<br />2. STRUTS OTHER THAN THE ONES LISTED ABOVE MAY BE USED WITH AN EVALUATION REPORT BY I.C.C. OR OTHER NATIONALLY
<br />ACCREDITED TESTING LABORATORY.
<br />3. ALL 24" x 48" CEILING LIGHT FIXTURES & 24" x 24" HVAC AIR REGISTERS SHALL BE SUPPORTED BY A MIN. OF (2) TWO HANGERS @
<br />OPPOSITE CORNERS. CEILING SYSTEM SHALL NOT SUPPORT OTHER ITEMS.
<br />4. ALL INTERIOR WALL & CEILING FINISHES SHALL BE INSTALLED IN ACCORDANCE WITH ASTM E 84 SHALL BE FLAME SPREAD CLASS
<br />III MIN.
<br />5. SPRINKLER HEADS AND OTHER PENETRATION CLEARANCE MIN. 2" DIA. OPENING OR A SWING JOINT
<br />6. ARMSTRONG ACOUSTICAL CEILING SUSPENSION SHALL BE INSTALLED IN ACCORDANCE TO ICC ESR-1308
<br />7. BRACING WIRES SECURED TO MAIN RUNNERS WITHIN 2" OF THE CROSS RUNNER INTERSECTION AND SPLAYED 90* FROM EACH
<br />0THER AT AN ANGLE NOT EXCEEDING 45* FROM THE PLANE OF THE CEILING.
<br />8. FOR ROOMS WITH SPAN IN EITHER DIRECTION LESS THAN 25', MAIN RUNNERS AND CROSS RUNNERS MAY BE ATTACHED TO THE
<br />PERIMETER OF TWO ADJACENT WALLS WITH 3/8" CLEARANCE BETWEEN THE RUNNERS AND THE OTHER TWO WALLS. WHERE SPAN
<br />OF THE CEILING SYSTEM BETWEEN PERIMETER WALLS EXEED 25' IN BOTH DIRECTIONS, A MINIMUM WALL ANGLE SIZE OF AT LEAST 2"
<br />HORIZONTAL LEG SHALL BE USED AT PERIMETER WALLS AND INTERIOR FULL HEIGHT PARTITION. THE FIRST TILE SHALL BE 3/4 "CLEAR
<br />FROM WALL SURFACE.
<br />9. WHEN THE DISTANCE BETWEEN THE STRUCTURAL DECK AND THE CEILING EXCEEDS 4', THE SPACING OF THE VERTICAL HANGERS
<br />SHALLNOTEXCEED 2' 0.C.ALONG THE ENTIRE LENGTH OF THE MEANS OF EGRESS SERVICING AN OCCUPANT LOAD OF 30 OR MORE,AND
<br />AT LOBBIES ACCESSORY TO GROUP A OCCUPANCIES.
<br />1. VERTICAL STRUT: A STRUT FASTENED TO
<br />THE MAIN RUNNER SHALL BE EXTENDED TO
<br />AND FASTENED TO THE STRUCTURAL
<br />MEMBERS SUPPORTING THE ROOF OR FLOOR
<br />ABOVE. THE STRUT SHALL BE ADEQUATE TO
<br />RESIST THE VERTICAL COMPONENT INDUCED
<br />BY THE BRACING WIRE.
<br />2. HORIZONTAL RESTRAINT POINTS SHALL BE
<br />PLACED 12 FEET ON CENTER IN BOTH
<br />DIRECTIONS WITH THE FIRST POINT WITHIN 6
<br />FEET FROM EACH WALL.
<br />VERTICAL STRUT (TYP) STD INSTALLATION PER
<br />ASCE SECTION 13.5.6.2.2.
<br />2" (MAX) FROM BRACING WIRE TO CROSS
<br />RUNNERS.
<br />METAL STUD COMPRESSION STRUT PER
<br />SCHEDULE
<br />1/4" DIA. MACHINE BOLT
<br />ACOUSTICAL CEILING TILES
<br />CEILING CLIP ASSEMBLY - HILTI CC-CLIP
<br />FASTENED W/.177 DIA. POWER DRIVEN
<br />FASTENER DX-KWIK,
<br />LARR-25651-ICC ESR-2184, OR APPROVED
<br />EQUAL
<br />1-1/2"-4 TIGHT TURNS
<br />12 GA. VERTICAL WIRE
<br />SPLAYED BRACE WIRE
<br />COMPRESSION STRUT ATTACHMENT DETAILS
<br />TYPICAL 12 GA. VERTICAL HANGER WIRE @
<br />4'-0" O.C. EACH WAY W/ MIN. 4 TIGHT TURNS
<br />IN 1-1/2" BOTH ENDS OF WIRE.
<br />12GA. BRACING WIRE W/ MIN. 4 TIGHT TURNS IN
<br />1-1/2" BOTH ENDS OF WIRE TYP. 90 APART @ 12'-0"
<br />O.C. EA. WAY.
<br />STARTING 6' FROM WALLS
<br />CEILING GRID MAIN RUNNER
<br />12 GA. SPLAYED SEISMIC BRACING WIRE.
<br />4 TIGHT TURNS
<br />VERTICAL HANGER WIRE
<br />ATTACHED TO STRUCTURE WITH 3/8" DIA.
<br />HILTI KB-TZ (ESR-1917) EMBEDDED 2" MIN. @
<br />24" O.C.
<br />CEILING CLIP ASSEMBLY - HILTI CC-CLIP
<br />FASTENED W/.177 DIA. POWER DRIVEN
<br />FASTENER DX-KWIK,
<br />LARR-25651-ICC ESR-2184, OR APPROVED
<br />EQUAL
<br />EMT COMPRESSION STRUT PER SCHEDULE.
<br />ENDS FLATTENED AND ATTACHED AS NOTED
<br />COMPRESSION STRUT SCHEDULECOMPRESSION STRUT SCHEDULE
<br />HEIGHT
<br />3 / 4" EMT
<br />METAL STUD OPTION
<br />UP TO 5'-0"250TI25-33 (20 GA)
<br />400S137-33 (20 GA)
<br />-400S200-33 (20 GA)
<br />UP TO 6'-0"
<br />UP TO 7'-0"
<br />UP TO 10'-0"
<br />1" EMT
<br />1 - 1 / 4" EMT
<br />EMT OPTION
<br />250TI25-33 (20 GA)
<br />> 10'-0" : Provide structural design calculations.
<br />COMPRESSION STRUTS 12' O.C, BOTH DIRECTIONS,
<br />STEEL SECTION WITH L/R RATION OF 200 MAX.
<br />ATTACH TO MAIN RUNNERS WITH 1/4" MACHINE
<br />BOLTS AND TO STRUCTURE WITH 3/8" DIA. HILTI
<br />KB-TZ (ESR-1917) EMBEDDED 2" MIN. @ 24" O.C.
<br />COMPRESSION STRUT SHALL NOT REPLACE HANGER
<br />WIRE. MAY BE STEEL STUD, BLACK IRON, EMT OR
<br />WOOD STUD (IN COMBUSTIBLE CONSTRUCTION
<br />TYPES ONLY) OR OTHER APPROVED EQUAL.
<br />-
<br />MAIN RUNNER
<br />CROSS RUNNER
<br />UNATTACHED WALLATTACHED WALL
<br />-
<br />3/8" AT TWO
<br />ADJACENT WALLS OR
<br />3/4" AT ALL FOUR
<br />WALLS: SEE NOTE #8
<br />-3/8" MIN CLR CROSS
<br />OR MAIN RUNNER
<br />7/8"
<br />8" MAX
<br />7/8"
<br />B
<br />B
<br />B SECTION VIEW
<br />A ISOMETRIC VIEW
<br />T-BAR CEILING (SEE REFLECTED CLG. PLAN) IF
<br />APPLICABLE
<br />SCREW TIGHTENED THROUGH MAIN
<br />RUNNER/CROSS TEE BULB OR WEB
<br />·CEILING TILE AND GRID
<br /> ARMSTRONG ICC-ESR-1308
<br /> L.A. RR. #25032
<br />·SEISMIC WALL CLIP
<br /> BERC2 OR EQUAL
<br /> ICC - ESR 1308, LARR #25032
<br />ARMSTRONG 7/8" ANGLE MOLDING
<br />ARMSTRONG BERC2 SEISMIC WALL
<br />ATTACHMENT CLIP.
<br />3 FULL TWIST MIN.
<br />ARMSTRONG 7/8" ANGLE
<br />MOLDING
<br />ARMSTRONG BERC2 SEISMIC
<br />WALL ATTACHMENT CLIP
<br />HANGER WIRE
<br />MAIN RUNNER/CROSS TEE
<br />SCREW TIGHTENED THROUGH
<br />MAIN RUNNER/CROSS TEE BULB
<br />OR WEB
<br />3/4"
<br />7/8"
<br />7/8"
<br />B
<br />B
<br />B SECTION VIEW
<br />A ISOMETRIC VIEW
<br />8" MAX
<br />3/4"
<br />T-BAR CEILING (SEE REFLECTED CLG. PLAN) IF
<br />APPLICABLE
<br />·CEILING TILE AND GRID
<br /> ARMSTRONG ICC-ESR-1308
<br /> L.A. RR. #25032
<br />·SEISMIC WALL CLIP
<br /> BERC2 OR EQUAL
<br /> ICC - ESR 1308, LARR #25032
<br />ARMSTRONG 7/8" ANGLE MOLDING
<br />ARMSTRONG BERC2 SEISMIC WALL
<br />ATTACHMENT CLIP.
<br />LOOSE SLIP SCREW
<br />ARMSTRONG 7/8" ANGLE
<br />MOLDING
<br />ARMSTRONG BERC2 SEISMIC
<br />WALL ATTACHMENT CLIP
<br />HANGER WIRE
<br />MAIN RUNNER/CROSS TEE
<br />LOOSE SLIP SCREW
<br />3 FULL TWIST MIN.
<br />#12 AWG STEEL WIRE CONNECTOR USED FOR BOTH GRID
<br />SUPPORT AND FIXTURE SUPPORT. ATTACH TO PERMANENT
<br />STRUCTURE. TYP. 6 PLACES.
<br />2'X4' FIXTURE SHOWN. DETAIL IS TYPICAL FOR 2'X2' , 1'X4' AND MOST
<br />OTHER RECESSED TROFFER FIXTURES.
<br />TYPICAL OF A VARIETY OF TROFFER FIXTURE SUPPORT WIRE
<br />CONNECTION TABS.
<br />PROVIDE MIN. 3 COMPLETE TURNS OF WIRE NO MORE THAN 15"
<br />LONG (TYP.)
<br />#10 TEK SCREWS LOCATED AT OPPOSITE CORNERS OF RUNNERS THRU
<br />INTEGRAL FIXTURE SUPPORT TABS - ONE SCREW SHOWN FOR CLARITY.
<br />USE OF UL - LISTED ACCESSORY
<br />FIXTURE SUPPORT TABS PROVIDED BY FIXTURE MANUFACTURER MAY BE
<br />USED IF ACCEPTABLE WITH THE LOCAL CODES. SCREWS SHOULD NOT
<br />EXTEND INTO THE BODY OF THE FIXTURE
<br />AS THIS MAY DISTORT FIXTURE BODY CREATING LIGHT LEAKAGE.
<br />1"
<br />MIN.
<br />FIELD CUT MAIN TEE
<br />CROSS TEE
<br />TEE-FACE SLEEVE
<br />ONE SIDE OF SPLICE CAP CRIMPED TO ALLOW
<br />MOVEMENT ONLY ON OPPOSITE END
<br />4-WAY SEISMIC
<br />EXPANSION JOINT CLIP
<br />FASTENER MAIN TEE
<br />HANGER WIRE
<br />NEAR TEE END
<br />45°REFER TO RCPREFER TO RCPLINE OF CEILING - SEE REFLECTED CEILING
<br />PLAN FOR TYPE AND HEIGHT.
<br />ATTACH KICKER TO TOP TRACK BOX
<br />HEADER WITH #10 SHEET METAL SCREWS
<br />5/8" GYPSUM BOARD
<br />GYPSUM BOARD ASSEMBLIES
<br />GYPSUM ASSOCIATION OR EQUAL
<br />AS PER I.C.C. # ESR - 1338.
<br />(1) #8 SHEET METAL SCREW
<br />2-1/2" x 20 GAUGE METAL STUD
<br />ATTACH TO STRUCTURE ABOVE WITH 3/8" DIA.
<br />HILTI KB-TZ EMBEDDED 2" MIN. @ 24" O.C.
<br />W/ FLOOR PLAN
<br />VERIFY DIMENSION
<br />EXISTING STRUCTURE
<br />DATE:
<br />DRAWN:
<br />REVIEWED:
<br />PROJECT NO:
<br />SCALE:
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<br />COPYRIGHT © 2015 SHLEMMER ALGAZE ASSOCIATES ALL RIGHTS RESERVED
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<br />AT THE TIME OF AND RELATING TO COVID-19 CONTAIN RECOMMENDATIONS FROM THE
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<br />575 Market Street, #502
<br />San Francisco, CA 94105
<br />As indicated
<br />A-30.2
<br />04/10/24
<br />AW
<br />JN/MP
<br />634495
<br />CEILING DETAILS
<br />X ENGINEERING
<br />6 E HUTTON CENTRE
<br />DRIVE
<br />SANTA ANA, CA 92707
<br />SUITE 650 EXPANSION
<br />SCALE:
<br />1 1/2" = 1'-0"SUSPENDED CEILING GRID DETAIL 4
<br />SCALE:
<br />3" = 1'-0"ATTACHED - GRID TO WALL DETAIL 6SCALE:
<br />3" = 1'-0"UNATTACHED - GRID TO WALL DETAIL 10
<br />SCALE:
<br />1 1/2" = 1'-0"LIGHT FIXTURE SEISMIC SUPPORT3 8
<br />SCALE:
<br />1 1/2" = 1'-0"EXPANSION JOINT 13
<br />SCALE:
<br />1 1/2" = 1'-0"FRAMED OPENING / SOFFIT DETAIL 7
<br />DATE DESCRIPTION DELTA
<br />04/16/24 ISSUE FOR ENGINEERING
<br />05/08/24 TENANT REVISION
<br />05/20/24 ISSUE FOR PLAN CHECK
<br />NELSON
<br />ALGAZE
<br />No. C-21090
<br />REN. 03/31/2025L,CEN S E ' ARC+,7
<br />E
<br />C7S7A
<br />7
<br />E O) CA L ,)O RN,A6 E Hutton Center Dr
<br />Unit# 625 & 6509/23/2024
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