AISI beam column design with lateral torsional buckling

NYC 9/11 Public Portal Document ■? "'J' J MAY. 1900 ZCZY! SWaME HAijES comely arch:teots

/tUSKIN' PO BOX 129 Qrandvieuv, Mo. 64030

STANDARD CONSTRUCTION F - 2* tltrtdard FRAME tn'toi' optioral CD80AF3 — 8" X 2' X 12 gage sleal channel. ''x, H = Mo. Hotaa CDB0AF4 — 8’ X 2* X 10 gage Steel channel. J - «< eptGtng blades COaOAPS — S14" to 7%' wide, double shin airfoil type d 18 gage steel lor blade lengths to 49" and 14 gage steel far 4S* to 60* blade lengths. M - Hele CDS0AF4 — 5%' io 7’/r wide, double skin airfoil type of 12 gage DIeneler steel lor Made lengths » *9" end tO gage steel lor 48“ Io 80* blade langlhs B UNKAGE Side InKage out ol alratream. x dialed sleel Ue bars. 44" diameier stainless sieel pivot pins with lock type retainers. 10 gage galvanliod steal clevis arms. AXLES C0S0AF3 — %' diameter plated steel. C0a0AF4—%" diameter piaied steel ter blade lengths up to 48". 1" diameier plated steel ter 48" to 60* blade lengths. BEARINGS Stainless steel sleeve bolted to frame. « Nb.HoIm FINISH = M Soaelng Miu gahanitsd. MAXIMUM TEMPERATURE 250T l$ standard. Damper can be supplied far lemperaiures be­ tween 250*? and 400*F by increasing dearanca between blade ends and frame. Advise Ruskin of maximum operating temperalute. MINIMUM SIZE

zz Single blade, parallel aotten — 6"w x e'h. Two blade, parallel or opposed action — e"w x 12“h, MAXIMUM SIZE 60Vx geii. FEATURES AND VARIATIONS The COeOAP Series dampers are ideally suited ter flanged instaU ation in industrial syaleins wUh up ic 21 In. w.g. static pressure for the > CD60AF3 and up to «5 in. w.g. static pressure tor the CD80AF4.

z The sturdy cbfutruction and airfoil shaped blades provide outstanding performance, low pressure drop, and quiet operation. Veriattons available ai addHIonai cost and Include; > EPDM blade seals suitable ter 250T maximum lemperature and CRANK KANO silicone blade seals suitable ter 400°? maximum temperature. LEVER QUADRANT ■ Flexible stainless steel jamb aaais ■ Bearings With integral shah seals and bearings rnounted outboard —C----- 1 (---- c .... of frame. * Axle shah seats. 6' STANOARD 8'STANOAPO * Special materials, meiuding stainless steel, ter all parts in airstream. <PB) :o6) * Nonstandard tlartges and bolt holes in flange. PARALLEL OPPOSED BLADE BLADE * Special tln'shsE. * Electric and pneumatic damper motor operators.

LEVER DIMENSIONS TtPE OTV MODEL variations PB OB A B C F G H J K L M HO CL

JOB LOCATION CONTRACTOR S(>« COMAfi-m/flopUCM CO(i2*F’W4 SAujkUl Manutesurbfl IBB?

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