Comments on the Proposed Revision of the American Standard Building Code Requirements for Masonry

(1)

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Technical Note (National Research Council of Canada. Division of Building Research), 1952-09-08

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(2)

DIVISION OF BUILDING RESEARCH

. No.128

NATIONAL RESEARCH COUNCIL OF CANADA

NOTlE

'JrE

_C

1HI N

_][

_C

AJL

I

NOT FOR PU BLlCAT10N FOR INTERNAL USE

PREPARED BY J.

I.

LIlWIiIQn

'1'.

lU.tehb

PREPARED FOR

CHECKED BY E. V. G. APPROVEO BY R .. F .. L ..

SUBJECT • aOlilJl'lli:iN'1'S ON $lIfE li'l'lOPolllJ,cn RIJ;VIIilIC1\l 01" '1'lilE

AMll,1lXCAW $'l'ANllil!'lD,aUILDING ClODE: ｒｅｾｾｕｉｒｆﾻｬｅｎＧＮｬＺＧＤ

lOti

ｾｍＮＤｏｎｬｉｩ

The

ＬｾｯｰｯｳＮ､ｾＮｶｬＤＱｯｮ

or the

ａｭｯｾｩｯＮｮｉｴ｡ｮ､Ｎｾ､

BUilding

Code R«Itrubel1llulta to'li' _{ｾＮＤｑｮｘＧｹ} _{hal(! been}

_nUdied

_with _unuaulll1

inh'li'ut.

dnoe. :re0

ept1y.

1\\

p.al:l.el

01'

the

Teonnhal

OOtllll\Uhe

on

Dul$:tl of

the

NaUona1attlld1ng Qode

of aanada

hu

bEhlmengaged

in

ｾＤｶｨｩｮｧ th.

muon:!:'1

$\ilctlQl1 of

t1hh latte:t'ool'l.e•. Q()nseQuentl,.

thue oOlUlllentlll

On

the Am0:!:'1oan Clod. Requblilmentlll

fQr' l'Ilali!cmrrw.tlJ. :rlltthot the op:1nlOn$ IiInd

iIIilxpe:rhncl!II of

th:l.Bl pand

1n

thdr

wo:rk

of

:revhion.

ｾｬ･ｦＱｾＲｴ

comments

heve

w111 desl

ｧ･ｮｾｾＮＱＱＱｷｾｴｨ

oontent

tmd ＱｉｬｾｊｩＧ｡ｮｧ･ｭ･ｮｴ

of

ｴｾｦｬ Amel'han OQcle Jitequ.1:r0I1lel'l.tlll ｴｬＩｾ Mll.l!orUi7, and

will

be tollowed bW

sOl1le

eonuuents on specifio lIlX't1eleain

these Requirements.

In

l1lany

:rUl'ect$

the

El,eqU1:!:'el1lenta ＮｾｾＱｉｉＡＱｴｬｬｕＮｬｉｬｾ

in AZ'range·

ment

and scope to the

ｾｲｘＧ･ｶｬｬ｜ｬ･､ mlllson:ry

seotionot

the Ililtlonal

.liJuUding

(lode.

wbhh

thEl panEl1 l!ieoit'!etfl should be

lIllt/eX'e<!

to"

_the

purpose of simplification

IIlnd

cllllrifioation.

n Wtl.S

dl\\cided

by

thh

);)lillll$J. thlllt themali!<:l:j.:r;y ｾＮｯｴｕｮ of

thl.t l.Ilational

lilu1l41ng

004e should

deal

sepavlIltelywlth

the

follow1ng

subjeots.

(Ill)

Unit Masonry aonst:ruetion

-,-,' '

(b) l'htintore<lld Brhl!;

:M1'lf.lcn:r'l

aon$tX'Ul'lllion

h) ()y,1!lWl'l Maaoru'y

Oonl!lt:ruotlon

(4)

01a.$ Block Masonry Uon.truction • and

(e)

Reinforoed

Oonorete and

Plain COflcrete

ｕｯｮＤｴｾ｡ｯｴｬｯｮＮ

ｾＱｮｯ･ the rllvi.$EilU l\!at1onal lilu11d1n£l; Oode

w111

(Ilmtdn

a

SlllQt1Q.n

deding;

with

the

l'E)qttil:'el1lents

of

tbe

qual! t1 of

matuiab.

the 1IIUOrU';r

seotion

will

concdn

nc

Ji'l1lteV$I1Ce

to

tlul

qutllUl of

materials (whhh w111 be given

1n

the Mtlterlals

Seet11;lnh

!ilxeept

1'l;lr ml'l$ont';r

mortars. which

it

WIll$

thought

desirable

to

inolude

in

the

MUGnll'Y S$c1i1on.

(3)

-

2 -!Jih.

_trnhMuon;tf

_{SElction hu b••n}

_a:rrang@(I,

_{(in the}

_revhion)

1n three paX"tiii , (a) lequ1:remlilnt$ Qf' '!'fQ t ll;rhb (mQrta't'

only),

(0)

ｒＦｉｾｲＬＬＬＺｬＮｲ･ｬＱＱ･ｮｴＤ of

Deal. \pel"11l1ll!slblEt

St:r@lillil0111,

wall thiekn&$$ea,

weatber1ng

8111'$$$0$,

eto.),

,uld «I)

ＮｲｾＡｬｬｱｵｬＺｲ･ｬｬＱｴｬｮｴｳ

ot (lonat:ruoUon (:l.no1ttd.lng

coU

weather

p:rotectlon,

0tO.).

£leosl.ullJ of t!l&

ｾｲ･｡ｴ

ohangl1l$ whbh. have taken phce

in

the

nl!ltuX'e

of um

t tIMlsonr1

eon$t:rueUon 1n

:!i'(u$$:nt ,.a:t'liI, t,b.e

pand

felt

thl1t

emp¥Ui!liIll1

tlIholAl.iIl

b.. plaoed

on brlnli!:tnlW1lU

muonry uonl1l11rtilot1on

to

a

1I(i&liIignu ｬＮ［ｴｦｊ､ｾｕＺｉｬｉＬ $tiloh alii

:t'dntorrelild conoJ'lilte.,

foX'

l1I:ltamph,

Whbh

would elbdnate the mllm;f

oontul\IlDg table.

of

waU tlhhlmUl!llil. ni)W 1:1). the masonry seot1on of tne ｾＲｴｬｯｮｬｩｬｬｾｴｩｬＱＱＴｬｮｧ OOde, whteh

tor

_the

_moat

part reteit' to methi>dll

1.)1' mllsQn:t7 oonatiruot;lO:l).

rllll'ely

tilllJElt'l. ｮｑｷｾ

ifh!e

bdl$lt (lIlUilO:rlpt1I'11D

of: the

01»101"$10:1).$ l'eaebed by the

panel on the

Masonry Section

of

the

National

ｾｩｬ､ＱｮＤ Code in their

wQrll:

of:

revbion ma1

_l!H!lX'V$

_a$

a

_{genllJvd eOllll!lent} _01'/. _thl!l

_contlilnt

and

1Il1':l:"fingPl.ent 0t _the

_Amell'loan

_{St41n.:'hll"d BuUUng Code}

_{!lequbem(lcn'tl1l} toX'

.l{lIUIOll:riW."

$eveX'al

oOllll!lent$

on oertain

Ｄｰｾ･Ｑｴｬ｣

articles

in

thl$l$e

ｲ･ｾｵｬｬＧ･ｭ･ｮｴＤ

are

glven belQw#

(a)

A:r'thle

1.4 Ut.e;l;':rl.lIlt.,

l.\la.terlal$ and

｡ｯｮｳｴｬＢｑ･ｴｨｦｵｬｾ

.It

1$

felt

that

'!ibis

arth.'h'l

hnot

eblllr, dthOui!;l'l.

1t

WIUI tal.fefl

to

!!lean,

ｉｉｍ｡ｳｯｮｾｹ

materials

and methods

0.1' _{･ｯｮｾｴｲｵ･ｴｬｯｮ} _{ｮｯｴＮｰＦ･Ｑｴｬ･ｑｾＱＱ}

｡ｵｴｨｯｾｩ｡ＮＴ

bl

the

stlpulated

ｲＤｾｵＺｩｾ･ｭＮｮｴＬ

ot

_thl$

_ｾｯ､Ｎ

_may

_be

ｰｾｬ［ｭＡｴｴ･､ provided

they

･ｯｮｦｯｾｭ

to

the ｰ･ｲｦｯｾ･ＮＬｾｯｶｩｬｬｬｬｯｮ｡

of tht8 Cod•• "

(1))

Arthh

1.6.5

ａＤｨＱＱＱｲｴＧｍｵｯｦｽＮｴＧｾＮ 'lrl:lll1 dElf1n:l.tion

naN

lnoltl.€l.e

thil!

note that all

faees of

ｂｴｯｮｾｳ

in

the wall ｳｬｾｬｬ be

vertical

or

h03:'lll1ontlitl.

:l'hts ｾｹ 1rI!1l temelfl a.mIUilO1'i:t7 ｾｭ t Whhh

to

the bn.klne;

W1l:f.

til by

ove3!'lapPlng

from

( 0)

Artiele 1.6.6 ilclnder.

tle$

the

facing

ｾｮＺｴｴ｡

ont'l to

th.

O'tbIU'.

Artiele

1.6.7

ｾｬ｣ｫＮ

S.G.R. b3:'hk.

(e)

Artiole 1..

6.18

ｍ｡ＤｯｮｾＮ I t

plain ooncrete i$ served

br

_thta

deflnltlcm

1'Illinforoed

conoll.'eta!) plilrUpa

Iilhou:ld

be

abo.

(4)

tt)

Artib1e 1.6.2).1

Oou:t'S$<l

l'iul.)bh.

\l!hb

ma1

be

4et'ine4

/Alii tIMl$Onl'V

<llllmplult»4 ot".atonllUl t"1tt1q ap.p

1I"1).1llIatel

y

on

b".l

0.4.'.8,

w.u

bonded

and

brought, atvert1eal 1ntervallil, to

a

eont1nuou$

:bVllll

bed or

OQl..l:S'l\le.

(g)

Art1ol!iJ 1.6..

ＡＺｳＮＮｾ Ellmdom (lou::rlilIUi

I'lubblo.

'hh

may

be

4et'1ne4 u

muon:t7

oompluletl

lllf IJr!'ililne$ f1tt;lnfg

appro.imatel;t

Gn

level

beds

and.

brouPt to

lovel

beds Or OOlU'I1l$$, the

6ontbu.it:r

of whioh

(4)

(0)

(3)

(1)

ａｾｕ･ｬＮＪ

1.6..

｡ｾＮＤ fil.nd\)thillX'llI. Ａｬ＾ｾｴＮｐｬｬＧＮＢＴ｣ｴｬｯｾＢ l'llthe:ti'

ｴｍｾ QOlltou"1$ found 'pX'efill:t'all.llil1.

A:t'1l1clill

1.6.a6.p

Hollow W4ll..

ｾｨｩｬｬ

lattonal

ｾｬｬ､ｬｮｳｾｯ､ｩｬｬ

,J"ovid••

th"t

ltXn Hollow Wall. of' so11d

llUlltfl." the "'1'111",

ot

the

ab

IlIpaCUli

11'1 aaf

hOli'taontd.

,1ma

sha11 Mt .:ltC.Chi.

4·$

ＧＱｬｾＨ［ｉｬＡｉｮｴ

of

the

gX'oslil

eiPOlIll& $iIIctloul'tl lIu'tnt of the waU."

Ax>t1el$ 2..1.1

ＤＮ･ｯｮＴＢｾ 1lUltfl;r>laJ..llI.

:U bh1t

thalt

the

ＺｴＧＮｾｕＤｩＱＱ of 1lUllllonry

unit$

1'$0011'01'&4 ｴｾ fit ｯｾＮＬｗｨＱｾｬ

lil$X''ViII€l

a

1118.

\'.Ill

0:1:'

$0114

:i'uel..

buninilmlt

.mould blll

:p*,ohlblhi.

(l<)

JU:>t1ohlll

3.4 and !¥.l 't1,Ju ot llfol"tait'$.

;g.Xo:rtal"1lI

ｰｩｬｬｾＡｬｬｴｴ｡､

al"$

､ｩｬｬＮｬｾｮ｡ｴｩｬｬ､ａＢｬＮ

A..

a,

ｾＮ

0, D,

liltO.,

but

｡ｾ･

not

defined

a

l1I

to oompo/ili

111l)l'I 0:1,"

J)t'oJ!ll>l"tlh$;_

Anlitttll!\l'l1pt ｴｬｬｾＤ bMn

.4_ O$%,,$

to '1'$/1$11(; lllomEl liIonlllt:ruetlv/il

e(/1llll'l/ilnt$ on ｴｾＤ Amlil],"iell.n Stflnlllu.'4 ＸｵＮｕ､｢ｾ (lode Rl1Iqul%"elll_1ulI to%"

Nuomi'l_

Althoutlib

thlll WQ.t'lt: Qf

l:'evls1on

Q.f tb.

1ll11t1onal flllUild1ng

a04$ ｾｉｩｕＩｬｕＺＧｬＤ･ｬｩｬｴｬ｣ｭ

hu

:rellJulte4

b

an awang• •nt and (lont_t

.SOllllilw1'1<tt

difte:rlng

hom

the

Ame:r:leM li/ilqublllm_ts, 2.t