FED-STD 795 Uniform Federal Accessibility Standards

Fig. 38
Stomge Shehea and a08e&
4.26 Hamdralk+Grab San& and Tub and
Shower SeaL%
4.26.1” Ganaral AUImndraifsgrab bars and tub
andshOvrar saatsmquimd to bsacceasibfebg4.1,
449, w49 ahafl compfy with 426.
4.26.2* Sfzs snd SFSSCkSgof Grab Sara and
fiandraffa. The diameter or width of the gripping au~
faces of a handrail or gmb bar shall be 1.1/4 in ~
1.1/2 in (32 mm to 38 mm), or the shape shafl pm+ide
an equivalent gripping surface If frandreJfs or gmb bars
are mounted adjacent to a wafl the space between the
wall and Uregmb bar shall be 1.1/2 in (38 mm) (ace
Fig. 39(a), (b), and (c)). Handmis maybe located in a
receasif tfrerecasa i5amaximum0f3 in(75 mm)
deep and extends at feaat 18 in (455 mm) above the
top of the mil (see FiQ 39(d)).
4.26.3 SIIUctural Sfrangth The atmctumlstrength
of gmb bars tub and shtir =@ f~e~ and
mounting dedces shall meet the following
specff~atiom
(l) Be.nding tiinagmbbror-tidbY
the maximum bending moment from the application
of 250 fbf (I112N) shall be less than the affowable
stmssfor themateffsl of thegMbhror=
(2)Skr~=tiudrna~bkrorA@ti
application of 250 Ibf(1112N) shafl be less than the
allowable sham stress for the matedd of the grab bar
or seat If the connection between the gti bar or seat
and its mounting bracket or other support is cm
sidered to be rihy restrained then direct and torsional
shear stresses shall be totaled for the combined sham
stress, whkh shall not axceed the aflcwable shear
-
4.28 AhMIS
. . . . . . .
(3) Shear force induced in ~ fastener or mounting
devics from the application of ~ Ibf ( 1I12N) shail
be less than the allowable lateral load of either the fas
tener or mounting device or @ suppwhng structure
whiihever is the smafler allowable load
(4) Tensile force induced ti a fastener by a direct
tension force of 250 Ibf(1112N) plus the’
maxinwm moment from thc;appiication of 250 fbf
(1112 N) shall be leas than h. $fIowable ~d~~l
and the supporting stmcture-.+
(5) Grab bars shall not ro@-within their fftings.
4.26.4 Eliminating-H_. A ~n~l 01 ~b
bar and any wall or other sr$face adjacent to it shall be
frae of any sharp or abrasive algments Edges ahafl
have a minimum radus of ~#in (3.2 mm).
4.27 Controls and O#&ing Mechanisms
4.27.1 Ganemf. Controlsand operating
llldllJIliMIS required tO be aCCtlSSfb@@J4. ~ Shall
comply with 4.27.
4.27.2 Cl- Floo~Spa= Claar floor space corm ,
P~g WM 4.2.4 that?llow a forward or a parallel
ap~ch by a Pram using a wheelchair shall be prm
tided at conb’ols, d~ns=s recep@cks and Other
operable equipment- ..+ ‘-”
4.27.3” HeighL ~ highest opable pat of all
cuntnls, dspense~’~epta$lq, and other operable
aqui~nt shall ba@Iced @bin at least one of the
reach mnges spe@s# in 4.25 ‘@d 42.6. Except
W@3rethe use of s@al equipnwnt dictates otherwise,
ekcrxical and comrnuiicstions +tem receptacles on
VMUSahafl be mounttd no less @.15 in (380 mm)
above the hr. :.”:” “’
4.27.4 OpemtfC&Contmls and opemting
mechanisms shall be operable widI one hand and shall
not require tight gr@ng, Rinchlng, w twisting of the
mm TfIe force mqtdqd to%+: ~trols shall ~
no greater than 5 Ibf (22.2 N).
4.28 Alarms. .,,.:.,
4.28.1 Ganetaf. Alarm systems required to be
accessible by 4.1 shafl con@y with 428.
4.28.2” AudfbleAlanns. If prc+ided audible
emergency alarms shall produce a sound that exceeds
das pm@fbwe@mfent soandfewstln the m or
space by m least 15 decibels or exceeds any maximum
sound lewd with a duration of X3 seconds by 5
decibels whkfsever is Irmder)sound levels for alarm
signak ahrdl not exceed. 120 dtiti
4.28.3* Vfauaf Alsrma. If provid~ electrically
-~ -b. fflumi~. ~e~en~ @t si9ns
shafl ffash as a visual emergency alarm in conjunction
with audibfe emergenq alarms .The flashing frequency
of visual alarm devices ahalhbe k“ssthan 5 HZ ff such
abrms use electricity from the buf@ng. as a POWW
sourcq then they sf@fl k’ iqafilled on. the same
system as the audible ~rn~rgen~’alanms
4
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