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<br /> DETAILS REFERENCE: NORTHWEST WALL AND CEILING BUREA a ��
<br /> $� REFERENCE 401 -REVISED 12/2013 SUSPENSION SYSTEMS � � � -� ��
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<br /> wA�� FOR ACOUSTICAL LAY-IN CEILINGS SEISMIC DESIGN �. . � . �- - w>
<br /> CATEGORIES D, E, AND F. REFERENCED SOURCES PER � ��
<br /> � ATTACHED WALL HIERARCHY: 2012 INTERNATIONAL BUILDING CODE, (IBC), � _- -
<br /> . 0 �o MOLDING REQ. �AM. SOCIETY OF CIVIL ENGINEERS (ASCE) 7-10, AMERICAN � � �>
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<br /> � SOCIETY OF TESTING MATERIALS (ASTM) C635, ASTM C636, � Q�
<br /> 3/4 MIN. AT UNA D � Q
<br /> 2° MIN. � � ASTM E 580/E580M, AND CEILING AND INTERIOR SYSTEMS
<br /> CONSTRUCTION ASSOC. CISCA .
<br /> �..�
<br /> GENERAL RECOMMENDATIONS: � p �
<br /> $„ 1. PARTITIONS THAT ARE TIED TO THE CEILING AND ALL PARTITIONS GREATER THAN 6 FEET � � o 0
<br /> IN HEIGHT SHALL BE LATERALLY BRACED TO THE STRUCTURE. BRACING SHALL BE � o .,..., ap �
<br /> WALL UNATTACHED WALL INDEPENDENT OF THE CEILING SPLAY BRACING SYSTEM. �•�= �� � �
<br /> M O L D I N G R E Q. 2. FOR FURTHER INFORMATION ON BRACING OF NON-LOAD BEARING PARTITIONS REFER TO � c � _ E- �
<br /> THE NWCB TECHNICAL DOCUMENT #200-501 +' � LLi � r� � �
<br /> , \ 3. ALL MAIN BEAMS ARE TO BE HEAVY DUTY (HD). � � z �'N �
<br /> O � SPREADER BAR OR EQUAL TO 4. CEILINGS LESS THAN 144 SQ. FEET AND SURROUNDED BY WALLS CONNECTED TO THE �� � � o �
<br /> � KEEP PERIMETER STRUCTURE ABOVE ARE EXEMPT FROM THE SEISMIC DESIGN REQUIREMENTS. o Y Q � o �
<br /> COMPONENTS FROM 5. THESE RECOMMENDATIONS ARE INTENDED FOR SUSPENDED CEILINGS AND RELATED � m �
<br /> SPREADING APART COMPONENTS IN AREAS THAT REQUIRE RESISTANCE TO THE EFFECTS OF EARTHQUAKE '� o �
<br /> 3/4" MIN. AT UNA D MOTIONS. � � '`'' �� �
<br /> 2" MIN. � � � '-� > N� O
<br /> NOTES: � ELECTRICAL FIXTURES *''� � � �
<br /> WALL MOLDINGS: 1. LIGHT FIXTURES WEIGHING < 10 LBS SHALL HAVE ONE 12 GAGE HANGER WIRE CONNECTED ° o m �
<br /> 1. WALL MOLDINGS (PERIMETER CLOSURE ANGLES) ARE REQUIRED TO HAVE A HORIZONTAL FROM THE FIXTURES TO THE STRUCTURE ABOVE. THIS WIRE MAY BE SLACK. M �
<br /> FLANGE 2 INCHES WIDE, ONE END OF THE CEILING GRID SHALL BE ATTACHED TO THE 2. LIGHT FIXTURES WEIGHING > 10 LBS. AND < 56 LBS. SHALL HAVE TWO 12 GAGE WIRES
<br /> WALL MOLDING, THE OTHER END SHALL HAVE A 3/4 INCH CLEARANCE FROM THE WALL ATTACHED AT OPPOSING CORNERS OF THE LIGHT FIXTURE TO THE STRUCTURE ABOVE.
<br /> AND FREE TO SLIDE. THESE WIRES MAY BE SLACK.
<br /> 3. LIGHT FIXTURES WEIGHING > 56 LBS. SHALL BE SUPPORTED DIRECTLY FROM THE
<br /> 2. WHERE SUBSTANTIATING DOCUMENTATION HAS BEEN PROVIDED TO THE LOCAL STRUCTURE ABOVE BY APPROVED HANGERS.
<br /> JURISDICTION, PERIMETER CLIPS MAY BE USED TO SATISFY THE REQUIREMENTS FOR THE 4. PENDANT MOUNTED FIXTURES SHALL BE DIRECTLY SUPPORTED FROM THE STRUCTURE
<br /> 2 CLOSURE ANGLE. ABOVE USING A 9 GA. WIRE OR AN APPROVED ALTERNATE SUPPORT WITHOUT USING THE
<br /> CEILING SUSPENSION SYSTEM FOR DIRECT SUPPORT.
<br /> 3. THE GRID SHALL BE ATTACHED AT TWO ADJACENT WALLS (POP RIVETS OR APPROVED 5. TANDEM FIXTURES MAY UTILIZE COMMON WIRES.
<br /> METHOD) SOFFITS EXTENDING TO A POINT AT LEAST LEVEL WITH THE BOTTOM PLANE OF MECHANICAL SERVICES
<br /> THE GRID AND INDEPENDENTLY SUPPORTED AND LATERALLY BRACED TO THE STRUCTURE
<br /> ABOVE ARE DEEMED TO BE EQUIVALENT TO WALLS, T 1. TERMINALS OR SERVICES WEIGHlNG < 20 LBS. SHALL BE POSITIVELY ATTACHED TO THE
<br /> SPREADER BARS: CEILING SUSPENSION MAIN RUNNERS OR TO CROSS RUNNERS THAT HAVE THE SAME
<br /> 1. TERMINAL ENDS OF MAIN RUNNERS AND CROSS MEMBERS SHALL BE TIED TOGETHER OR CARRYING CAPACITY AS THE MAIN RUNNERS.
<br /> HAVE SOME OTHER APPROVED MEANS TO PREVENT THEIR SPREADING. STABILIZER BARS, 2• TERMINALS QR SERVICES WEIGHING > 20 LBS. BUT NOT MORE THAN 56 LBS. SHALL HAVE,
<br /> CROSS TEES OR OTHER MEANS TO PREVENT SPREADING SHALL OCCUR WITHIN 8 IN. OF IN ADDITION TO 5.4.1, TWO 12 GAGE WIRES CONNECTING THEM TO THE CEILING SYSTEM
<br /> EACH WALL HANGERS OR THE STRUCTURE ABOVE. THESE WIRES MAY BE SLACK. _
<br /> 3. TERMINALS OR SERVICES WEIGHING MORE THAN 56 LBS. SHALL BE SUPPORTED DIRECTLY
<br /> ° 2. SPREADER BARS ARE NOT REQUIRED AT PERIMETERS WHERE RUNNERS ARE ATTACHED FROM THE STRUCTURE ABOVE BY APPROVED HANGERS.
<br /> DIRECTLY TO CLOSURE ANGLES.
<br /> SPRINKLERS
<br /> 3. SPREADER BARS ARE NOT REQ. IF A 90 DEGREE INTERSECTING CROSS OR MAIN IS �
<br /> 2X SUBPURLIN OR 4X WITHIN 8 INCHES OF THE PERIMETER WALL 1. FOR CEILING WITHOUT RIGID BRACING, SPRINKLER HEAD PENETRATIONS SHALL HAVE A 2
<br /> PURLIN OR GLB IN. OVERSIZE RING, SLEEVE, OR ADAPTER THROUGH THE CEILING TILE TO ALLOW FREE O
<br /> 4. WHERE SUBSTANTIATING DOCUMENTATION HAS BEEN PROVIDED TO THE LOCAL MOVEMENT OF AT LEAST 1 IN. 1N ALL HORIZONTAL DIRECTIONS. FLEXIBLE HEAD DESIGN
<br /> JURlSDICTION, PERIMETER CLIPS MAY BE USED TO SATISFY THE REQUIREMENTS FOR THAT CAN ACCOMMODATE 1 INC. FREE MOVEMENT SHALL BE PERMITTED AS AN
<br /> WOOD SPREADER BARS. ALTERNATE. ��
<br /> CONNECTION � CENTERLINE �
<br /> MEMBER �
<br /> 3 �RNS SPREADER BAR & � <C _
<br /> � � . . . . . J� MAX � � � .
<br /> �RT►�A� �RE WALL MOLDING CEILING TRANSITION NOTES �
<br /> HANGER-300# MIN.
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<br /> � NTS J
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<br /> 2"MIN. � �
<br /> � �_ 2X6 MIN. SUBPURLIN OR 4X W � �
<br /> PURLIN OR GLB �
<br /> SPLAY WIRES ARE TO BE FOUR 12 GA. WIRES ATTACHED TO THE � Z
<br /> MAIN BEAM. WIRES ARE ARRAYED 90' FROM EACH OTHER & AT '
<br /> � � NOTES: AN ANGLE NOT EXCEEDING 45' FROM THE PLANE OF THE CLG. 0
<br /> � (2) 5/16"X2"LAG SCREWS HANGER WIRES SHALL BE 12 GA. &4' O.C. OR 10 GA. & 5� O.C.
<br /> 1. THESE RECOMMENDATIONS ARE INTENDED FOR SUSPENDED CEILINGS INCLUDING GRID, PANEL F'-'
<br /> TERMINAL ENDS OF EA. MAIN OR CROSS TEE MUST BE W -
<br /> OR TILE, LIGHT FIXTURES AND AIR TERMINALS WEIGHING NO MORE THAN 4 LBS./SF LATERAL FORCE BRACING �PERSPECTIVE� SUPPORTED WITHIN 8" OF EA. WALL � z
<br /> . MTL STUD VERTICAL BRACE 2. ALL WIRE TIES ARE TO BE 3" O.C.. TWELVE GAGE HANGER WIRE SPACED 4' O.C. O
<br /> SIZE PER CHART DETAIL 1, 3. CHANGES TO CEILING PLANES WILL REQUIRE POSITIVE BRACING. 12 GA. HANGER WIRE F,,,�
<br /> SPACED 4 O.C. ALL WIRE � W =
<br /> � TIES TO BE 3 TIGHT TURNS \ �
<br /> AROUND ITSELF WITHIN 3 W Q
<br /> INCHES. _ �
<br /> OPTIONAL VERTICAL BRACING
<br /> ATTACHMENTS WD DECK LATERAL FORCE BRACING COUNTE SHALL BE ,,2� o.0 (MAX) AN � W ,
<br /> ( ) SLOPE/SPLAYED BEGIN < 6 FROM WALLS-SE
<br /> S 4 SEISMIC BRACING 45' MAX CHART FOR SIZES AND � � ,--I �
<br /> VERIFY LOCAL CODE REQ. W W
<br /> SCALE: NTS SCALE: NTS WIRE ATTACHMENT, '
<br /> SEE ATTACHMENT VERT. STRUTS MUST BE
<br /> DETAILS THIS SHEET POSITIVELY ATTACHED TO � � W
<br /> THE SUSPENSION SYSTEM
<br /> CEILING BRACING AND THE STRUCTURE A@OVE � � �
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<br /> (WHEN USED.) Z � U� W
<br /> COUNTER SLOPE SPLAYED LAT. FORCE BRACING 4 REGISTRATION
<br /> SEISMIC BRACING WIRE ATTACHMENT EA. 12 GA. WIRE SECURED
<br /> PLUMB 1/6 45' MAX 45' TO MAIN RUNNER WITHIN iozze
<br /> 1. VERTICAL STRUTS MAY BE EMT CONDUIT, METAL STUDS 2'-0" OF CROSS TEE AND p�15 T D
<br /> OR PROPRIETARY COMPRESSION POST. SPLAYED 90' FROM EA.
<br /> PERIMETER HANGER WlRE 2. CEILINGS W� PLENUMS <12" DO NOT REQUIRE LATERAL 2" 2�� OTHER � 12'-0" O,C,
<br /> 8" MAX FORCE BRACING. *PROVIDE ENGINEERING IF PLENUM > BOTH DIRECTIONS W/ AT8 F WASH �TON
<br /> ���_an FIRST POINT WITHIN 4'-0° ,
<br /> ,, MA(N [3�AMWALL
<br /> � NOTES: CROSS TEE �
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<br /> MAXIMUM RECOMMENDED LENGTHS FOR 1. CEILINGS CONSTRUCTED OF SCREW-OR-NAIL ATTACHED GYPSUM BOARD ON ONE LEVEL THAT ARE W
<br /> � VERIICAL STRUTS SURROUNDED BY AND CONNECTED TQ WALLS OR SOFFITS THAT ARE LATERALLY BRACED TO THE �
<br /> STRUCTURE ABOVE ARE EXEMPT FROM SEISMIC DESIGN REQUIREMENTS. � p O
<br /> MAX. 45' ANGLE MAX. 45' ANGLE 2. CEILING AREAS EXCEEDING 1,000 SF, HORIZONTAL RESTRAINT OF THE CEILING TO THE STRUCTURAL � U
<br /> 3/4" MIN. FLANGE SYSTEM (LATERAL FORCE BRACING) SHALL BE PROVIDED. a
<br /> POP RIVET EMT CONDUIT 3. LATERAL FORCE BRACING IS THE USE OF VERTICAL STRUTS (COMPRESSION POSTS) & SPLAY WIRES. � � U
<br /> 4. LATERAL FORCES BRACES SHALL BE 12 O.C. (MAX) AND BEGIN NO FURTHER THAN 6 FROM WALLS. z � �
<br /> NOTES: NOTES: ��2" TO 5'-10'� 5. SEISMIC SPLAY WIRES ARE TO BE 4 - 12 GA. WIRES ATTACHED TO THE MAIN BEAM. WIRES ARE �--+ � O
<br /> 1. HANGER AND PERIMETER WIRES MUST BE PLUMB WITHIN 1 IN 6 UNLESS COUNTER SLOPING 1 FOR CEILING AREAS EXCEEDING 2,500 SQ. FT., A SEISMIC SEPARATION JOINT OR FULL HEIGHT 3�4�� Tp ��_g°° ARRAYEQ 90' FROM EACH OTHER AND AT AN ANGLE NOT EXCEEDING 45' FROM THE PLANE OF THE ,..J.�, O 0
<br /> 'MRES ARE PROVIDED. WIRE &TIES TO BE 3 TIGHT TURNS AROUND ITSELF WITHIN 3". WALL PARTITION THAT BREAKS THE CEILING SHALL BE PROVIDED UNLESS ANALYSES ARE � � CEILING. U ? _
<br /> 2 HANGER WIRES SNALL BE 12 GAGE AND SPACED 4 FEET ON CENTER OR 10 GAGE SPACED 5' PERFORMED OF THE CEILWGS BRACING SYSTEM, CLOSURE ANGLES AND PENETRATIONS TO 1 TO 9'-9 6 SEISMIC SPLAY WIRES SHALL BE ATTACHED TO THE GRID AND TO THE STRUCTURE IN SUCH A MANNER •
<br /> O.C. ANY CONNECTION DEVICE AT Tri� SUPPORTING CONSTRUCTION SHALL BE CAPABLE OF PROVIOE SUFFICIENT CLEARANCE. THAT THEY CAN SUPPORT A DESIGN LOAD OF NOT LESS THAN 200 POUNDS OR THE p �- �
<br /> 2. THE LAYOUT AND LOCATION OF THE SEISMIC SEPARATION JOINT SHALL BE PER THE ACTUAL DESIGN LOAD WITH A FACTOR OF 2 WHICHEVER IS GREATER. W
<br /> CARRYING NOT LESS THAN 100 # ' � � ~,
<br /> 3. POWDER ACTUATED FASTENERS (PAr�s) ARE AN APPROVED METHOD OF ATTACHMENT FOR DESIGNER OF RECORD AND NOTED ON THE PLANS. IF A SEISMIC SEPARATION JOINT IS REQ. 7. POWDER ACTUATED FASTENERS (PAFS), WHEN USED FOR SEISMIC APP�ICATIONS ARE PART OF THE I- (n u� �
<br /> BY THE DE5IGNER, THE DESIGNER MAY USE THE GENERIC JOINT DETAILED DETAILED IN THIS STEEL STUDS PRESCRIPTIVE PATH IN SEISMIC DESIGN CATEGORIES D, E, AND F, AND SHALL HAVE AN ICC-ES FOR U � Q ,�-�
<br /> HANGER WIRES. „ � W
<br /> 4 TERMINAL ENDS OF EAGH MAIN B�ld AND CROSS TEE MUST BE SUPPORTED WITHIN 8"OF EACH DOCUMENT OR PROPRIETARY JOINT. THE AMOUNT OF FREE MOVEMENT (GAP DESIGN) SHALL 1-5/8 X 20 GA. TO 12'-0" APPROVAL AND REQUIRE SPECIAL INSPECTION IRRESPECTIVE OF THE TYPE OF OCCUPANCY CATEGORY THE J Q � d�
<br /> WALL WITH A PERIfdETER WIRE. BE A MINIMUM OF 3/4". , STRUCTURE IS IN. PAF ANCHORS FOR KICKER WIRES (SPLAYED WIRES I NSTALLED FOR PURPOSES W W ��
<br /> 5 WIRES SNALL NOT ATTACH TO OR Bc�lD AROUND INTERFERING MATERIAL O R E QUI PM EN T. A 3. I N L I E U O F S E I S M I C S E P A R A T I O N J O I N T S, T H E C E I L I N G M A Y B E D I V I D E D I N T O A R E A S <2 5 0 0 S F D B L 1-5/8 X 2 0 G A T O 1 5'-0 O T H E R T H A N S E I S M I C R E S T R A I N T) A R E E X E M P T F O R M T H I S R E Q. � � z
<br /> TRAPEZE OR EQUIVALENT DEVICE SHA!! BE USED WHERE OBSTRUCTIONS PRECLUDE BY THE USE OF PARTITIONS OR SOFFITS AS FOLLOWS: PARTITIONS SHALL EXCEED A MINIMUM , „ 8. SPLAY WIRES ARE TO BE WITHIN 2 INCHES OF THE CONNECTION OF THE VERTICAL STRUT TO
<br /> DIRECT SUSPENSION. TRAPEZE SUS��PISIONS SHALL BE ABLE TO RESIST THE DEAD LOAD AND '� 2-1 2" X 20 GA TO 13 -6
<br /> OF 6 ABOVE THE LEVEL PLANE OF THE GRID AND SHALL BE INDEPENDENTLY BRACED TO � SUSPENDED CEILING. JOB NUMBER: WP-17-041
<br /> LATERAL FORCES ArPROPRIATE �OR TriE SEISMIC CATEGORY. THE STRUCTURE ABOVE. SOFFITS SHALL EXTEND A POINT AT LEAST LEVEL WITH THE BOTTOM DBL 2-1/2" X 20 G TO 15'-0" 9. RIGID BRACING MAY BE USED IN LIEU OF SPLAY WIRES.
<br /> 6 FOR ESSENPAL FACILITIES, HANG�R YdRE CONNECTIONS MUST BE CAPABLE OF CARRYING 200 PLANE OF THE GRID AND SHALL BE INDEPENDENTLY SUPPORTED AND LATERALLY BRACED TO 10.CEILINGS WITH PLENUMS d2 INCHES TO STRUCTURE ARE NOT REQUIRED TO HAVE LATERAL FORCE PM: VSS
<br /> ## AND BRACING (SPLAY) WIRES SiiALL BE CAPABLE OF CARRYING 440 POUNDS. TH� STRUCTURE ABOVE BRACING.
<br /> SHOT-IN ANCNORS IN CONCRETE 'N2c NOT PERMITTED FOR BRACING WIRES. SHEETt
<br /> HANGER (SUSPENSION) WIRES SEISMIC SEPARATION JOI��TT SUSPENDED CEILING BRACING
<br /> A2 . 1
<br /> SCALE: NTS � SCALE: NTS � SCALE: NTS �
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