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n 4 9 9 � j $s �u/ � o Rd /� ,-,-..7F / C C, 2 d d G 4- -- - -- "12 INCH RULE" FOR DUCTWORKMEC .- 6a �3 • ` 1, h RT STRUCTURE SUPPORT STRUCTURE CO NNE CT IONS ,., MAX. CLEARANCE ., • ica) C V: 5 • O ` �LCANNOTDEVELOP L ^ MOM ENTS 1 12 IN. (PER 1997 UBC y ` 305 mm ( 7 mm) 1/4 IN. (6 mm) `' IBC 2000) te i DUCT y DUCT J r°, F - 1 IN. (25 mm) • R SUPPORT STRUCTURE r • SHEET METAL STRAPS —\ , . • < 12 IN. } – (305 mm) 7 (2) #10 SHEET • i METAL SCREW t SHEET METAL SCREW AS REQUIRED • i — r_ < 21IN. DUCT (51 mm) ,' Note 1: Refer to Page 12, note 1 for additional requirements of the "12 Inch Rule ". i. Note 2: For tightening requirements of bolts, nuts and strut nuts reference H15. A PPROVE D MASON INDUSTRIES, Inc. Manufacturers of Vibration Control Products 107 NY Mailing Address: PO Box 410, Smithtown, NY 11787 California Office of Statewide 350 Rabro Drive 2101 W. Crescent Ave., Suite D Health Planning and Development Hauppauge, NY 11788 Anaheim, CA 92801 631/348-0282 714/535-2727 FIXED EQUIPMENT ANCHORAGE FAX 631/348 -0279 FAX 714/535 -5738 Info @Mason- Ind.com Info @MasonAnaheim.com OPA -0349 August 5, 2002 . *Valid for 3 ears M. ximu Page i k. . lii x____. .10 _ _. Dhiru Mali 31 • Bill Staehlln (916) 654 -3362 Structural Engineer California SE No. 2811 • . — TRANSVERSE SEISMIC SOLID BRACE GUIDELINES ` FOR RECTANGULAR/OVAL DUCT a: SUPPORT STRUCTURE _,.,. Tr ` III III SUPPORT ANCHORAGE ': s REF. SECTION K `'`' % ROD COUPLING y =fi \ SRC OR UC - SEISMIC ROD t CLAMP IF REQUIRED S SB /SSBS I..I I.. REF PAGE c1 OR E2 ANCHORAGE i ` ' : `� . REF. SECTION D THREADED ROD 1. 4 AND X4 I REF. PAGE El OR E2 :} 1 I� \ ROD STIFFENER ANGLE ``.:; `� l Ito i IF REQUIRED ' - REF. PAGE El OR E2 " 1 i ii -., AND X5 OR X5A " . A. ADDITIONAL UPPER SUPPORT ? _ ` -' _�, REF. PAGE E4 v . '_.4 DUCT [ - —` , . REQUIRED CLEARANCES -- ' .c ' REF. PAGE H14 \ r ~� 1 No 10 SELF - TAPPING ., � � --• 1 IN. (25 mm) SHEET METAL SCREWS ' ' MAXIMUM 12 IN (305 mm) O.C. "., . \ \ TRAPEZE SUPPORT REF. PAGE E3 4 STEEL BRACE OR 1 IIMMO © • OO ,STRUT CHANNEL ' t MUM 9' -6" (2.9 m) 7 ` . SECTION D =i : u; SBS / V `' ? - MIC SOLID BRACE -i ..SECTION D AND X4 NOTE 1: A ROD STIFFENER ANGLE MAY BE REQUIRED AS SHOWN. FOR ADDITIONAL INFORMATION, REF. PAGE El OR E2. BRACE ANGLE RATIO MAY BE INCREASED TO 2(VERT.) . 1(HORIZ.). REFER TO SECTION D FOR LIMITATIONS. `_F,, - NOTE 2: FOR TIGHTENING REQUIREMENTS OF BOLTS, NUTS AND STRUT NUTS REFERENCE H15. i - - - % - A P R V ® MASON INDUSTRIES Inc. Manufacturers of Vibration Control Products Y K,z . NY Mailing Address: PO Box 410, Smithtown, NY 11787 = California Office of Statewide i • 350 Rabro Drive 2101 W. Crescent Ave., Suite D ,, Health Planning and Development Hauppauge, NY 11788 Anaheim, CA 92801 ` 631 /348 -0282 714/535 -2727 FAXED EQUIPMENT ANCHORAGE X FAX 631/348 -0279 FAX 714/535 -5738 Info @Mason - Ind.com Info @MasonAnaheim.com _ = - s 3 P A -0349 August 5, 2002 - V al i d for 3 ears M ximu Page - . .; - ,..., -,!.,..,..7., 2eu Af\SGe. -';,N.43 )�-• at _ Dhiru Mali F17 Bill Staehlln (916) 654 -3362 Structural Engineer =y • California SE No. 2811