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METAL STUD WALL BRACE W/ (2) #8 WOOD SCREWS W/ 1 1/2" MIN. PENETRATION INTO PURLIN EXISTING STRUCTURE W/ 2X RAFTERS WALL BRACE DETAIL 4" M I N . EXISTING 2X RAFTERS EXISTING PURLIN CEILING JOIST TABLE (ICC ESR-3064P REISSUED MARCH 2023) 1. VALUES ARE FOR SINGLE SPANS. 2. ALLOWABLE CEILING SPAN CALCULATIONS BASED ON 33KSI YIELD STRENGTH STEEL. 3. FOR FULLY BRACED CEILINGS, USE MID-SPAN BRACED VALUES. 4. END BEARING LENGTH = 1" MINIMUM. 4 PSF LATERAL SUPPORT OF COMPRESSION FLANGE UNSUPPORTED MID-SPAN SECTION: 362S125 362S125 362S125 362S125 362S125 362S137 362S137 362S137 362S162 362S162 400S125 400S125 400S125 400S125 400S137 400S137 400S137 400S162 400S162 600S125 600S125 600S125 600S125 600S137 600S137 600S162 600S162 (MIL) 18 27 30 33 43 27 33 43 33 43 27 30 33 43 27 33 43 33 43 27 30 33 43 33 43 33 43 9'-3" 12" 10'-8" 11'-0" 11'-5" 12'-8" 12'-0" 12'-11" 14'-3" 14'-8" 16'-2" 10'-11" 11'-4" 11'-9" 13'-0" 12'-4" 13'-3" 14'-7" 15'-0" 16'-7" 12'-5" 12'-9" 13'-2" 14'-6" 14'-11" 16'-3" 16'-11" 18'-5" JOIST SPACING (IN.) O.C. 16"24" 8'-7" 9'-10" 10'-2" 10'-7" 11'-8" 11'-2" 11'-11" 13'-2" 13'-7" 14'-11" 10'-1" 10'-5" 10'-10" 12'-0" 11'-5" 12'-3" 13'-6" 13'-11" 15'-3" 11'-6" 11'-10" 12'-3" 13'-4" 13'-9" 15'-0" 15'-8" 17'-0" 7'-7" 8'-10" 9'-1" 9'-5" 10'-5" 10'-0" 10'-8" 11'-8" 12'-2" 13'-4" 9'-1" 9'-4" 9'-8" 10'-8" 10'-3" 10'-11" 12'-0" 12'-6" 13'-8" 10'-4" 10'-8" 11'-0" 11'-11" 12'-5" 13'-5" 14'-1" 15'-3" 12'-8" 12" 15'-0" 15'-6" 16'-2" 17'-9" 17'-2" 18'-4" 20'-0" 20'-10" 22'-8" 15'-5" 16'-0" 16'-7" 18'-3" 17'-7" 18'-9" 20'-7" 21'-5" 23'-4" 17'-11" 18'-5" 18'-11" 20'-6" 21'-5" 23'-1" 24'-5" 26'-4" JOIST SPACING (IN.) O.C. 16"24" 11'-7" 13'-11" 14'-4" 14'-10" 16'-5" 15'-11" 16'-11" 18'-6" 18'-11" 20'-7" 14'-3" 14'-9" 15'-3" 16'-10" 16'-4" 17'-4" 19'-0" 19'-10" 21'-7" 16'-6" 17'-1" 17'-7" 19'-0" 19'-10" 21'-5" 22'-8" 24'-4" 10'-0" 12'-4" 12'-10" 13'-3" 14'-8" 14'-3" 15'-2" 16'-7" 16'-6" 18'-0" 12'-9" 13'-2" 13'-8" 15'-0" 14'-8" 15'-7" 17'-0" 17'-9" 19'-4" 14'-9" 15'-3" 15'-10" 17'-0" 17'-10" 19'-3" 20'-5" 21'-11" NOTE: ALL JOIST INFORMATION IS BASED ON STEEL STUD MANUFACTURERS ASSOCIATION (SSMA) ICC ESR-3064P IN D I C A T E S T H A T W E B S T I F F E N E R S A R E R E Q U I R E D A T E N D S DUCT OPENING IN SECOND FLOOR (E) FLOOR JOISTS WHERE OCCURS 16" MAX. MATCH RUNNER TRACK W/ #10 x 1-1/2" WOOD SCREWS AT EACH JOIST. NON-BEARING METAL STUDS WERE OCCURS. OMITTEDOMITTED 2' o.c. Unattached Wall Attached Wall Un a t t a c h e d W a l l B or P B B B B B B B B BBB UNATTACHED WALL ATTACHED WALL B or P B or P 1-1/2" TOTAL TRAVEL OPTIONAL 3 4" 7 8" 8" MAX. 8" MAX. 7 8" 8" MAX. 7 8" ATTACHED WALL POP RIVET SCREW TIGHTENED THROUGH MAIN RUNNER WEB RESTRICTING SEPARATION FRM WALL MOLDING BERC2 CLIPS OR POP RIVETS ARMSTRONG BERC2 CLIP SEISMIC DETAILS - ESR-1308 3 4" HORIZONTAL SEISMIC SLOT SEISMIC JOINT CLIP ARMSTRONG SEISMIC JOINT CLIP SYSTEM WORKS WITH ARMSTRONG 15/16" & 9/16" GRID SYSTEMS. (PRELUDE, SUPRAFINE AND SILHOUETTE.) MAIN BEAM: SJMR CRESS TEE: SJCG SILHOUETTE ADN INTERLUDE CROSS TEE: SJCSI ICC ESR-1308 USG DONN ICC ESR-1222 CHICAGO METALIC SST ICC ESR-2361 OR OR SEISMIC JOINT CLIP TWO PIECE UNIT W/ SLOTS VERTICAL POSITIONING STAMP (ARMSTRONG 'SJCG' SHOWN CEILING SYSTEM DESIGN TO FOLLOW AND COMPLY WITH CBC SECTION 808 AND SEISMIC DESIGN PER ASCE 7-16, CHAPTER 13: 13.5.6.2.2 1.FIXTURES INSTALLED IN CEILING SYSTEMS SHALL BE MOUNTED IN SUCH A MANNER THAT WILL NOT COMPROMISE CEILING PERFORMANCE. 2.FIXTURES SHALL BE SUPPORTED BY SUPPLEMENTAL HANGERS WHEN THE WEIGHT EXCEEDS THE DEFLECTION CAPABILITY. HANGERS WILL BE WITHIN 6" OF EACH CORNER OR THE FIXTURES SHALL BE SUPPORTED INDEPENDENTLY. DO NOT ECCENTRICALLY LOAD MAIN OR CROSS RUNNERS. SUPPORTING RUNNERS SHALL NEVER BE ALLOWED TO ROTATE MORE THAN 2° AFTER THE LOAD IS IMPOSED. 3.CEILING SYSTEMS AND THEIR CONNECTIONS TO THE BUILDING STRUCTURE SHALL CONFORM WITH CH. 16 PART 111 OF THE CBC. CEILING SYSTEMS SHALL BE DESIGNED AND INSTALLED FOR A LATERAL FORCE OF 100% OF THE WEIGHT OF THE FIXTURE IN ADDITION TO THE VERTICAL LOAD. 4.ELECTRICAL a.FIXTURES SHALL BE POSITIVELY ATTACHED TO THE CEILING SYSTEM. THE ATTACHMENT DEVICE SHALL HAVE A CAPACITY OF 100% OF THE LIGHT FIXTURE WEIGHT ACTING IN ANY DIRECTION. b.FOR INTERMEDIATE SYSTEMS NO 12 GAUGE HANGERS SHALL BE ATTACHED TO GRID MEMBERS WITHIN 3" OF EACH CORNER OF THE FIXTURE. TANDEM FIXTURES MAY UTILIZE COMMON WIRES. c.LIGHT FIXTURES WEIGHING LESS THAN 56 POUNDS SHALL HAVE IN ADDITION TO REQUIREMENTS (2) NO. 12 GAUGE HANGERS CONNECTED FROM THE FIXTURE TO THE STRUCTURE ABOVE. THESE WIRES MAY SLACK. d.LIGHT FIXTURES WEIGHING 56 POUNDS OR MORE SHALL BE SUPPORTED DIRECTLY FROM THE STRUCTURE ABOVE BY APPROVED HANGERS. e.PENDANT HUNG FIXTURES SHALL BE SUPPORTED DIRECTLY FROM THE STRUCTURE ABOVE WITH NO. 9 GAUGE WIRE OR APPROVED ALTERNATE SUPPORT WITHOUT THE USE OF THE CEILING SYSTEM FOR DIRECT SUPPORT. 5.MECHANICAL f.CEILING MOUNTED AIR TERMINALS OR SERVICES WEIGHING LESS THAN 20 POUNDS SHALL BE POSITIVELY ATTACHED TO THE CEILING SYSTEM MAIN RUNNERS OR TO CROSS RUNNERS OF THE SAME CARRYING CAPACITY AS THE MAIN RUNNERS. g.TERMINALS OR SERVICES WEIGHING 20 POUNDS BUT NOT MORE THAN 56 POUNDS SHALL HAVE IN ADDITION TO THE ABOVE NOTED (2) NO. 12 GAUGE HANGERS CONNECTED FROM THE TERMINAL OR SERVICE TO THE CEILING SYSTEM HANGERS OR TO THE STRUCTURE ABOVE. THESE WIRES MAY BE SLACK. h.TERMINALS OR SERVICES WEIGHING MORE THAN 56 POUNDS SHALL BE SUPPORTED DIRECTLY FROM THE STRUCTURE ABOVE BY APPROVED HANGERS. 6.LIGHTING AND MECHANICAL FIXTURES MUST BE SUPPORTED BY ADDITIONAL INDEPENDENT NO. 12 GAUGE WIRES ATTACHED TO EACH CORNER OF THE FIXTURES. PER ASCE 7-16 CHAPTER 13, SEISMIC DESIGN CATAGORIES D-F 7.A HEAVY DUTY T-BAR GRID SYSTEM SHALL BE USED. 8.ACCOUSTICAL TILE OR LAY-IN PANEL CEILINGS IN STRUCTURES ASSIGNED TO SEISMIC DESIGN CATEGORIES D, E, AND F SHALL BE DESIGNED AND INSTALLED IN ACCORDANCE WITH ASTM C635, ASTM C636, AND ASTM E580. SECTION 5 - SEISMIC DESIGN CATEGORIES D, E, AND F AS MODIFIED BY THIS SECTION. ACCOUSTICAL LAY-IN PANEL CEILINGS SHALL ALSO COMPLY WITH THE FOLLOWING: a. THE WIDTH OF TE PERIMETER SUPPORTING CLOSURE ANGLE OR CHANNEL SHALL BE NOT LESS THAN 2" (50MM) UNLESS QUALIFIED PERIMETER SUPPORTING CLIPS ARE USED. CLOSURE ANGLES OR CHANNELS SHALL BE SCREWED OR OTHERWISE POSITIVELY ATTACHED TO WALL STUDS OR OTHER SUPPORTING STRUCTURES. PERIMETER SUPPORTING CLIPS SHALL BE ATTACHED TO THE SUPPORTING CLOSURE ANGLE OR CHANNEL WITH A MINIMUM OF TWO SCREWS PER CLIP AND SHALL BE INSTALLED AROUND THE ENTIRE CEILING PERIMETER. IN EACH ORTHOGONAL HORIZONTAL DIRECTION, ONE END OF THE CEILING SHALL BE ATTACHED TO THE CLOSURE ANGLE, CHANNEL, OR PERIMETER SUPPORTING CLIP. THE OTHTER END CEILING GRID IN EACH HORIZONTAL DIRECTION SHALL HAVE A MINIMUM 0.75" (19MM) CLEARANCE FROM THE WALL SHALL REST UPON AND BE FREE TO SLIDE ON A CLOSURE ANGLE, CHANNEL, OR PERIMETER SUPPORTING CLIP. 9.FOR CEILING AREAS EXCEEDING 1,000 SQ. FT., HORIZONTAL RESTRAINT OF THE CEILING TO THE STRUCTURAL SYSTEM SHALL BE PROVIDED. THE TRIBUTARY AREAS OF THE HORIZONTAL RESTRAINTS SHALL BE APPROXIMATELY EQUAL. 10.FOR CEILING AREAS EXCEEDING 2,500 SQ. FT. A SEISMIC SEPARATION JOINT OR FULL HEIGHT PARTITION THAT BREAKS UP THE CEILING UP INTO AREAS NOT EXCEEDING 2,500 SQ. FT. SHALL BE PROVIDED UNLESS STRUCTURAL ANALYSES ARE PERFORMED OF THE CEILING BRACING SYSTEM FOR THE PRESCRIBED SEISMIC FORCES THAT DEMONSTRATE CEILING SYSTEM PENETRATIONS AND CLOSURE ANGLES PROVIDE SUFFICIENT CLEARANCE TO ACCOMMODATE THE ANTICIPATED LATERAL DISPLACEMENT. EACH AREA SHALL BE PROVIDED WITH CLOSURE ANGLES IN ACCORDANCE WITH ITEM 2 AND RESTRAINS OR BRACING IN ACCORDANCE WITH ITEM 3. 11.EXCEPT WHERE RIGID BRACES ARE USED TO LIMIT LATERAL DEFLECTIONS, SPRINKLER HEADS AND OTHER PENETRATIONS SHALL HAVE A 2" OVERSIZE RING, SLEEVE OR ADAPTER THROUGH THE CEILING TILE TO ALLOW FOR FREE MOVEMENT OF AT LEAST 1" IN HORIZONTAL DIRECTIONS. ALTERNATIVELY, A SWING JOINT THAT CAN ACCOMMODATE 1" OF CEILING MOVEMENT IN ALL HORIZONTAL DIRECTIONS IS PERMITTED TO BE PROVIDED AT THE TOP OF THE SPRINKLER HEAD DIRECTION. 12.CHANGES IN THE CEILING PLAN ELEVATION SHALL BE PROVIDED WITH POSITIVE BRACING. 13.CABLE TRAYS WITH ELECTRICAL CONDUITS SHALL BE SUPPORTED INDEPENDENTLY OF THE CEILING. 14.LATERAL BRACING FOR SUSPENDED CEILINGS SHALL BE PROVIDED. WHERE CEILING IS NOT SUPPORTING INTERIOR PARTITIONS, CEILING BRACING SHALL BE PROVIDED BY FOUR NO. 12 GAUGE WIRES SECURED TO THE MAIN RUNNER WITHIN 2" OF THE CROSS RUNNER INTERSECTION AND SPLAYED 90° FROM EACH OTHER AT AN ANGLE NOT EXCEEDING 45° FROM THE PLANE OF THE CEILING. A STRUT (ADEQUATE TO RESIST THE VERTICAL COMPONENT FROM LATERAL LOADS) FASTENED TO THE MAIN RUNNER SHALL BE EXTENDED TO AND FASTENED TO THE STRUCTURAL MEMBERS OF THE ROOF OR FLOOR ABOVE. THESE HORIZONTAL RESTRAINT POINTS SHALL BE PLACED 12" O.C. IN BOTH DIRECTIONS WITH THE FIRST POINT WITHIN 6" OF EACH WALL. ATTACHMENT OF RESTRAINT WIRE TO THE STRUCTURE ABOVE SHALL BE ADEQUATE FOR THE LOAD IMPOSED. 15.SUSPENDED CEILING SHALL BE DESIGNED AND INSTALLED IN ACCORDANCE WITH ASTM C635, ASTM C636 AND THE CISCA FOR SEISMIC ZONES 3-4 MODIFIED BY THE FOLLOWING - FOR CEILING AREAS EXCEEDING 100 SQ. FT., HORIZONTAL RESTRAINT OF THE CEILING TO THE STRUCTURAL SYSTEM SHALL BE PROVIDED. CABLE TRAYS AND CONDUITS SHALL BE SUPPORTED INDEPENDENTLY OF THE CEILING. SEE DETAILS ON THIS SHEET. ICC # ESR 1308 #12 GA. HANGER FIXTURE SUPPORT WIRES AT BASE OF FIXTURE. (TYPICAL OF TWO) TEX SCREWED THROUGH FIXTURE IN OPPOSITE CORNERS TO MAIN BAR RUNNERS. HEAVY-DUTY SUSPENDED CEILING 2'X4' FIXTURE HOUSING #12 AWG STEEL WIRE CONNECTORS (TYPICAL) CEILING T-BAR \ FIXTURE MOUNTING HEIGHT (TYPICAL) LIGHT FIXTURE SUPPORT COMPRESSION STRUT OVER CEILING RUNNER SLOT END OF TUBE TO FIT CROSS RUNNER TUBES SHALL LAP ONE ONE TUBE TO THE OTHER. INSTALL BOLT TO SECURE LATERAL FORCE BRACING UNDERSIDE OF FLOOR OR FULLY EXTENDED POSITION. ANOTHER AT LEAST 4" IN TURN CEILING GRID LEVEL PRIOR TO NO. 12 GA. VERTICAL WIRE HANGER, SEE MAX. HEIGHT SCHEDULE ROOF STRUCTURE ABOVE. BOLT AND LOCKING NUT. DRILL 5/32" HOLE AND INSTALL 1/8" SETTING TUBE. SLEEVE EMT NOTE: SYSTEM-SEE CLG. PLAN. L (MAX. HEIGHT) ELECTRICAL METALIC TUBING (EMT) ONLY SUSPENDED CEILING 8'-6"1 1/4" 2" 1 1/2" 12'-0" 9'-10" 1" 1/2" 3/4" SIZE (DIAMETER) 4'-0" 6'-6" 5'-2" MAIN RUNNER 1. STRUTS OTHER THAN EMT MAY REQUIRE ENGINEERING CALCULATIONS. 2. STRUTS OVER 12 FEET MAY REQUIRE ENGINEERING CALCULATIONS. LONG AND HEAVY STRUTS PRESENT ADDITIONAL SEISMIC HAZARD; THEREFORE, THE APPLICANT MAY BE REQUIRED TO PROVIDE CALCULATIONS SHOWING THAT ADDITIONAL STRUT LOAD CAN BE SUPORTED VERTICALLY AND LATERALLY BY THE SUSPENSION SYSTEM ELEMENTS SUCH AS MAIN RUNNERS, VERTICAL AND SPLAYED WIRED, ETC. 12'-0" O.C. TYP. 12 ' - 0 " O. C . T Y P . 6" M A X . D-21 2 3 4710 11 DE T A I L S LA N D L O R D I M P R O V E M E N T SH E E T T I T L E : JO B T I T L E : HA R B O R B U S I N E S S P A R K 36 2 5 M A C A R T H U R B L V D , S U I T E S 3 0 7 - 3 0 8 SA N T A A N A , C A 9 2 7 0 4 REVISIONS 24-236.16 1 1 1 1 2025 3625 W MacArthur Blvd #30712/9/2024