WA9302A-SP 960429 (3); ' '-- ,. North Texas Municipal ~"~' ~'/7
· "'" Construction Company, Inc.
I
SUBMITTAL NO. 050504)1 5614 Dyer St.
Dallas, Texas 75206
City of Coppert 214 / 368-6880
Village Parkway Pump StaOon FAX 214/368-4950
Mise, el~eous Steel
"Certification Statement: P'y t!'.[s submittal, I hereby
represent that I have dct:.,:'c~.*ined and verified all field
measurements, field cc.n~rucL~6n~ criteria, materials.
din~ensi~>ns, catalog num!~e:'s ai;d similar dut:~ and I
haw~ checked and c~mrdi',~:~i.~:d e~.~vh it. era with oLher
ap[~licable approvcd Shai~ Drawings arid all Contract
requirenlcBls."
NORTH TEXAS MUNICIPAL
-':ONSTRUCTION C. OMPANY, INC.
EXGEPTIO~ T~K~AKE GORREGTIOH$ NOTED
~ NO ~ISE AND RESUBMIT
~ REJECTED
~ SUBMIT SPECIFIED ITEM
Checking ts only for general conformance with the design
concept of the pro~ect and general compliance with the
information given in the contract documents. Any action
shown is subiect to the requirements of the plans and
specifications. Contractor is responsible for: dimensions
which shall be confirmed and correlated at the ~ob si~e;
fabdcation processes and techniques of construeion, co-
ordination of his work with that of all other trades and
~fforming his work in a safe and satisfac~o~ manner,
~ ~ M E K ,~~/~
J#
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CONSTRUCTION * SALES * SERVICE
I ALUMINUM RECTANGULAR BAR
19-SG-4 ~>~ ,~ -SG-2
LOAD TABLE 19-SG-4/~
s~ ~K w~' ~-r ~ 3'~ ~3'~ 4'~ 4'~ 5'~ 5'~ 6'~ 7'~
// Sx = .~8 U 458 2~ 2~ 149 114 u--Safe uniform load in pounds/sq.
D .14~ .225 , .~1 .576 C--Safe concentrat~ load in pounds/ft.
1 X 1.~ = ,114~ D .~/5 .~
/ ~59 .352) .461 ~ion in inc es
~ X = . D /.1~ .225 .~ .576 9iv~ in t is table are
6 2 ~~~ C f ~ ~ 4~ ~ ~ m~i~l, and are
/ ~ = . 1 ~i .115 . .259 ~ .~1 ~ .~ b~ on a un'
J 715 ~ 318/2~ ~4~ 114~ ofl2,~psi.
1V4 X Va 2.25 'D .,5 /~5~ .259 ~ .~ N .~ .7~7 '
C 715 ~ ~ 318" 2~
X = D ~ '1~ .~1 . 317
1 V4 6 3.~ c ~ 6~41 ~7 4~ '
D ~/.~ .1~i .~7 .2~ .~ /.~ .575 ~
~x u/~~ ~ ~ ~
= .515 ~ .~ .~ .216 ~ .~ .~ .5 .724
1V2 ~ Vs Z Ix = ,~/~ ~ ~24 ~/~ ~5 ~ 2 374
~/ D .077/1~ .173 /.~/~7 .~9 .5791
U 1~7 f ~ B~ ~ / ~7 ~ / 247! ~ ~2
Sx =. D .~ .~ .2~ ~ .~ ..~t .5~ .~4
1~ X , 3, Ix = ~ c ~ ~7 ~ m 6~/~2 Z
D ~77 ,1 ~ ,1 ~ ,. .~7 -~ .579 ' .~
~~ u 2105 1~7 ~ ~7 5~ 416 ~7 278 z~
Sx = 1.~2 D .~2 .~28 .~ .252 .3~ ,417 .515 .62~ .741
13/4 X ~6 4.~ c 21~ 1~ 1~ 1~ 1~ ~ ~2 7~ 702
Ix = .~ p .~ .1~ .1~ .~ .2~ .~ .412 .4~ .5~ .6~
[ :Sx = ~. ~ D . ,~ .~ ,2~ ~ .~ /.~ .5n1.6n /.7~ ~.~7
~: i C 27~ /~ I 17~ 1~ 1071 ~ ~0
/ IX = '~ D .~ .115 .~5 .~7 .~ .627 ~19
D I .~ -~ .~ .~76 .~ .~ . .7~
' .~ ~072 .~ .~4~ ~ .~ ,~ ,~ .4~5 . .~37
*~ ~ 11 bars/~ ~ gra~ng wi~. ~ b~ 1~" c.c. Add .3 I~./~, · f~ 1~-2.
t-SG-2 Panel Width Chad (in.) Dimensio~ A~ O~-t~O~ M BeaH~ Ba~*'
No, ~ Ba~ 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
~,6" Bar 1% 2%6 3% 41~16 61~ 7~16 81~ 911A6 10% 12%6 131/4 147/16 15% 161~16 18
NO. d Ba~ 11 18 19 ~ ~ ~ 23 ~ 25 ~ 27 ~ ~ ~ 31
~," Bar 19%6 20% 21%6 2~ %3~5A6 25% 26%6 27~ 28~%6 29% 31%6 32% 33%6
*'Add V," for e~end~ cr~ bars. ~u~ 'A w %" ~aring bars. Stand~d panel widths indicat~ in blue.
STAIR TREADS
Fabricated grating stair treads are available in the
ALUMINUM FLUSH TOP SGF Series, Aluminum
Rectangular Bar SG Series, Aluminum I-Bar SGI
Series, Aluminurn Riveted AR Series, Aluminum
Plank Series, Light Duty Welded Steel W Series and
Light Duty Rivete:d Steel R Series. Treads may be
ordered with a plain or serrated surface. Aluminum
~r -' ----{-- '
extruded "F" type treads, used primarily in marine
and military applications, are shown on page 36.
Nosings for aluminum treads include a standard
extruded grooved nose, or cast aluminum abrasive
nose. Steel treads come standard with a checker-
plate nose, or ~ith a cast aluminum abrasive nose
for maximum skid resistance. Carrier end plates or
angles (in the case of close-mesh grating) are pro-
vided with a hole and slot for attachment to stringers.
Ohio Gratings also fabricates industrial grade stain-
less steel treads. (Note: Bolts for mounting to
stringers not supplied.)
How to Speciht
1. Stair treads shall be of the same type and
spacing as grating being specified. Stair treads
shall be by Ohio Gratings, Inc., or approved
equal.
2. Bearing Bar Size shall be based on tread length Representative tread styles and nosings are shown
and shall be selected in accordance with the below. Available, but not shown, are SGF, SGI, AR
and W series treads.
NAAMM Metal Bar Grating Manual.
3. Nosing: Grooved nosing (aluminum treads) or
checkerplate nosing (steel treads). (Note: A c~st
aluminum abrasive nosing for maximum skid SG Series
resistance may be specified at the discretion of
the architect/engineer.)
4. Carrier End Plates: Attached by welding in ac- IIII ,,
cordance with the NAAMM Metal Bar Grating
Manual. (Note: Carrier angles should be speci-
fied in conjunction with close mesh grating Grooved Nose
treads.) Plank Series
~ .'
~u~ R Series
Checkerpl
)
Checkerplate Nose
STAIR TREAD TOLERANCES
' Stair Tread Tolerances
.' Carrier Plate Lean 12"
tLength + 0" - %"
Overall Dimensions
Note: Length of tread is distance between outer faces of V ~ Tread Overrun
carrier plates or back to back of carrier angles.
Tread Width Stair Tread Details
Tread Width
,, ,' . ~. _~'. ~ J ~ .... , , ' . U L, ',~ ,
1%" slot st~l -- 2%" x %~", or 1%" slot
C~cker Plate Nosing -- St~l 3" x %~" de~nding Cast Abrasive N~ing -- St~l ~ Aluminum
Gr~v~ Nosing -- Aluminum upon DIM. B
Aluminum -- 3" x
Tread Width Tread Width
................. 1' _ .............
%~" M. "A" ' ' .... ' ....
~" x 1 ~/,,,DI DIM. "A'
%~" x 1%"
Hole 1%" Slot 2" x 1'~" x %" Alum. Hole 1%" Slot '
Groov~ Nosing -- Aluminum (used for close mesh alum. gRg.) Cast Abrasive N~ing -- Aluminum
Standard T~ad Widt~ ~nd End Plate Dimesions
Note: R~r to dr~wi~s ~ve ~ A ~ I di~.
...- .-. ,
d W, SG, SGF ~ ~ ~i~ B
~ P Dim.
/ h /
~ '10 12', ~ ~'~/12~ 7' ~'~ 2%' ALLlluminumtm~
· Table of wid~ based on %" thick bearing bars and standard bar spacing 1%/cc
( 1%' fad-to-face for riveted g rating. )
Suggesled Bearing Bar Sizes*
ALUMINUM TREADS ST L TR DS
SGF, SG, AR Max. Tread Length* . ~,~
1" X 3A6' 2'-0' -- XI" -Ba Pl k, /A '~ 3/~,~/~ 2'-2"
I V," × %," 2,_8- 2'_4-
· " I- ar/ ank
-_~ 1%" x ~,,' 3'-6' 3'-1'
1%" x %~" 4,_7- 4,,0,,
· Maximum tread length based on 400-1b. concentrated load on nos~n, an~ 4 bearing bars at center of tread length.
Note: Sin~ ~ ~t~ ~i~ ~r d~s not ~u~
~ ~lffi~ hm ~ 'Plain" ~lumn.
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LA-FER ASSOCIATES INC
DALLAS TEXAS
SCALE REV I DWG
1�4- -REV 2 1 45:5
DATE CHKD BY
REV 3
DETAIL THIS SHT PROJECT NO.
PROJECT DWG NO
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